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The summer Milky Way over the Log Cabin at the Reesor Ranch, July 16, 2013. This is a stack of 5 x 4 minute tracked exposures for the sky + one 4 minute untracked exposure for the ground. Each at f/2.8 with the 15mm lens and Canon 5D MkII at ISO 1600.

13899459 - The summer Milky Way over the Log Cabin at the Reesor Ranch, July 16, 2013. This is a stack of 5 x 4 minute tracked exposures for the sky + one 4 minute untracked exposure for the ground. Each at f/2.8 with the 15mm lens and Canon 5D MkII at ISO 1600.

$Taken with Astro-Physics 4-inch Traveler apo refractor at f/6. With Hutech-modified Canon 5D camera at ISO800 for 7 minutes. Stack of two exposures. Taken from Coonabarabran, NSW, Australia.$

13899361 - Taken with Astro-Physics 4-inch Traveler apo refractor at f/6. With Hutech-modified Canon 5D camera at ISO800 for 7 minutes. Stack of two exposures. Taken from Coonabarabran, NSW, Australia.

STS128 Discovery Shuttle (lower path) and ISS (upper path) flying over about 4 minutes apart in single 10-minute tracked exposure, Sept 10, 2009, with Canon 5D MkII and 15mm lens at f/4 and at ISO200.

13898784 - STS128 Discovery Shuttle (lower path) and ISS (upper path) flying over about 4 minutes apart in single 10-minute tracked exposure, Sept 10, 2009, with Canon 5D MkII and 15mm lens at f/4 and at ISO200.

The Carina Nebula, NGC 3572, and surrounding clusters. To the upper left is NGC 3532, the Football Cluster. To the upper right is NGC 3293, the Gem Cluster To the lower left is the nebula complex NGC 3576/81. This is a stack of 5 x 10 minute exposures at f/4.3 with the Borg 77mm astrograph (330mm focal length) and filter-modified Canon 5D MkII at ISO 800. Taken from Coonabarabran, Australia, March 2014.

13898213 - The Carina Nebula, NGC 3572, and surrounding clusters. To the upper left is NGC 3532, the Football Cluster. To the upper right is NGC 3293, the Gem Cluster To the lower left is the nebula complex NGC 3576/81. This is a stack of 5 x 10 minute exposures at f/4.3 with the Borg 77mm astrograph (330mm focal length) and filter-modified Canon 5D MkII at ISO 800. Taken from Coonabarabran, Australia, March 2014.

Sunset colours over White Sands National Monument, New Mexico, December 10, 2013. Venus is at left of centre. This is an HDR (High Dynamic Range) stack of 7 exposures at 2/3 stop increments from -2 to +2 EV, processed first with ACR then with Photomatix Pro. Images taken with the 14mm Rokinon lens at f/4 and Canon 5D MkII at ISO 100. While colour vibrancy has been enhanced the colours to the eye were quite vivid. The HDR technique brings out details in the dark ground while preserving the bright sky.

13897522 - Sunset colours over White Sands National Monument, New Mexico, December 10, 2013. Venus is at left of centre. This is an HDR (High Dynamic Range) stack of 7 exposures at 2/3 stop increments from -2 to +2 EV, processed first with ACR then with Photomatix Pro. Images taken with the 14mm Rokinon lens at f/4 and Canon 5D MkII at ISO 100. While colour vibrancy has been enhanced the colours to the eye were quite vivid. The HDR technique brings out details in the dark ground while preserving the bright sky.

The Milky Way over Herbert Lake, Banff, Alberta, near Lake Louise. Mount Temple is glacier-clad peak at left. A single exposure of 40 seconds at f/2.8 with 16-35mm lens and Canon 5D MkII at ISO 1600. No Moon, and taken in late twilight.

13897514 - The Milky Way over Herbert Lake, Banff, Alberta, near Lake Louise. Mount Temple is glacier-clad peak at left. A single exposure of 40 seconds at f/2.8 with 16-35mm lens and Canon 5D MkII at ISO 1600. No Moon, and taken in late twilight.

The northern summer Milky Way over the Saskatchewan Summer Star Party in Cypress Hills, Saskatchewan, Canada, August 18, 2012. Taken with the Canon 5D MkII at ISO 800 and 15mm lens at f/4 for a stack (mean combined) of four 5 minute exposures, all tracked. The ground is from only one of those expoures (the gorund is masked out in the other layers).

13900622 - The northern summer Milky Way over the Saskatchewan Summer Star Party in Cypress Hills, Saskatchewan, Canada, August 18, 2012. Taken with the Canon 5D MkII at ISO 800 and 15mm lens at f/4 for a stack (mean combined) of four 5 minute exposures, all tracked. The ground is from only one of those expoures (the gorund is masked out in the other layers).

$NGC 7000, the North America Nebula, with the Pelican Nebula, IC 5067, at right, in Cygnus, taken from home November 21, 2016 as part of testing of the Explore Scientific FCD100 102mm apo refractor. This is a stack of 5 x 6-minute exposures at f/7 with the ES field flattener, and at ISO 1600 with the filter-modified Canon 5D MkII. Star diffraction spikes added with AstronomyTools actions.$

13900337 - NGC 7000, the North America Nebula, with the Pelican Nebula, IC 5067, at right, in Cygnus, taken from home November 21, 2016 as part of testing of the Explore Scientific FCD100 102mm apo refractor. This is a stack of 5 x 6-minute exposures at f/7 with the ES field flattener, and at ISO 1600 with the filter-modified Canon 5D MkII. Star diffraction spikes added with AstronomyTools actions.

One of the 27 antennas of the Very Large Array (VLA) radio telescope complex in New Mexico (with others in the distance at lower right) illuminated by moonlight, on December 13, 2013, peak night for the Geminid meteor shower. A single exposure of 30 seconds with the Rokinon 14mm lens at f/2.8 and Canon 5D MkII at ISO 800. Orion is rising a lower centre. The Moon is the bright object at upper right. The Pleiades and Hyades are above centre.

13899753 - One of the 27 antennas of the Very Large Array (VLA) radio telescope complex in New Mexico (with others in the distance at lower right) illuminated by moonlight, on December 13, 2013, peak night for the Geminid meteor shower. A single exposure of 30 seconds with the Rokinon 14mm lens at f/2.8 and Canon 5D MkII at ISO 800. Orion is rising a lower centre. The Moon is the bright object at upper right. The Pleiades and Hyades are above centre.

The Big Dipper over Castle Mountain, Banff, on a partly cloudy and dewy night. Taken as part of a 150-frame time-lapse. With the 24mm lens and Canon 5D MkII for 30 seconds at f/2 and ISO 1600.

13899655 - The Big Dipper over Castle Mountain, Banff, on a partly cloudy and dewy night. Taken as part of a 150-frame time-lapse. With the 24mm lens and Canon 5D MkII for 30 seconds at f/2 and ISO 1600.

Orion and the Winter Triangle stars, Sirius, Procyon and Betelgeuse, taken from the Painted Pony Resort in New Mexico, March 13, 2013. A stack of 5 x 8 minute exposures at f/4 with the 35mm Canon lens and 5D MkII at ISO 800, plus a layer of 2 x 8 minutes with the Kenko Softon filter for the star glows. M50, M46, M47 and M41 clusters all visible at left.

13899031 - Orion and the Winter Triangle stars, Sirius, Procyon and Betelgeuse, taken from the Painted Pony Resort in New Mexico, March 13, 2013. A stack of 5 x 8 minute exposures at f/4 with the 35mm Canon lens and 5D MkII at ISO 800, plus a layer of 2 x 8 minutes with the Kenko Softon filter for the star glows. M50, M46, M47 and M41 clusters all visible at left.

The area of the Rosette Nebula (bottom) and Christmas Tree Cluster (top) in Monoceros with the Fornax Lightrack tracker and 200mm lens + Canon 5D MkII. The nebulosity at top includes the Cone Nebula.

13898988 - The area of the Rosette Nebula (bottom) and Christmas Tree Cluster (top) in Monoceros with the Fornax Lightrack tracker and 200mm lens + Canon 5D MkII. The nebulosity at top includes the Cone Nebula.

The old Atlas Coal Mine near East Coulee, Alberta, now a museum and tourist attraction. This is a composite of 20 x 1 minute exposures with the Canon 5D MkII and 16-35mm lens at 16mm and f/2.8, and ISO 1250. Taken June 27, 2013. While the Moon was up it was in some cloud and most of the illumination of the foreground comes from a sodium vapour light just off camera at right. Images stacked with StarCircleAcademy's Advanced Stacker Actions, Comet Streaks option.

13898847 - The old Atlas Coal Mine near East Coulee, Alberta, now a museum and tourist attraction. This is a composite of 20 x 1 minute exposures with the Canon 5D MkII and 16-35mm lens at 16mm and f/2.8, and ISO 1250. Taken June 27, 2013. While the Moon was up it was in some cloud and most of the illumination of the foreground comes from a sodium vapour light just off camera at right. Images stacked with StarCircleAcademy's Advanced Stacker Actions, Comet Streaks option.

The Milky Way from northern Sagittarius to southern Cygnus, above the mountains of Waterton Lakes National Park; Alberta, Aug 31, 2013. This is a stack of 4 x 3 minute exposures at f/2.8 with the 24mm lens and Canon 5D MkII at ISO 1600.

13898058 - The Milky Way from northern Sagittarius to southern Cygnus, above the mountains of Waterton Lakes National Park; Alberta, Aug 31, 2013. This is a stack of 4 x 3 minute exposures at f/2.8 with the 24mm lens and Canon 5D MkII at ISO 1600.

The aurora of February 3-4, 2014 seen from Churchill, Manitoba at the Churchill Northern Studies Centre, looking west to Orion and Taurus, with tour group members taking in the sight. This is a 2-second exposure at f/2 with the 24mm lens and ISO 2000 wth the Canon 5D MkII.

13897879 - The aurora of February 3-4, 2014 seen from Churchill, Manitoba at the Churchill Northern Studies Centre, looking west to Orion and Taurus, with tour group members taking in the sight. This is a 2-second exposure at f/2 with the 24mm lens and ISO 2000 wth the Canon 5D MkII.

The area of the head of Orion with the large Lambda Orionis nebulosity surrounding the star Meissa at top, with Betelgeuse (left) and Bellatrix (right) at bottom, with the Fornax Lightrack tracker and 200mm lens + Canon 5D MkII. The open cluster around Meissa is Collinder 69.

13897818 - The area of the head of Orion with the large Lambda Orionis nebulosity surrounding the star Meissa at top, with Betelgeuse (left) and Bellatrix (right) at bottom, with the Fornax Lightrack tracker and 200mm lens + Canon 5D MkII. The open cluster around Meissa is Collinder 69.

Twilight at Red Rock Canyon area in Waterton Lakes National Park, Alberta, July 17, 2014. Mt. Blakiston is to the right, named for the first scientific explorer, Thomas Blakiston, to travel and map this area as part of the Palliser Expedition, 1858-59. The foreground has wild roses, the emblem of Alberta. This is a single frame from a time-lapse movie, taken with the Canon 5D MkII and 14mm Rokinon lens.

13897380 - Twilight at Red Rock Canyon area in Waterton Lakes National Park, Alberta, July 17, 2014. Mt. Blakiston is to the right, named for the first scientific explorer, Thomas Blakiston, to travel and map this area as part of the Palliser Expedition, 1858-59. The foreground has wild roses, the emblem of Alberta. This is a single frame from a time-lapse movie, taken with the Canon 5D MkII and 14mm Rokinon lens.

The Hoodoos in the Red Deer River valley on Highway 10 east of Drumheller. Taken September 21, 2013 with the Canon 5D MkII and 24mm lens with a single 30-second exposure. Light from waning gibbous Moon provided the illumination.

13900573 - The Hoodoos in the Red Deer River valley on Highway 10 east of Drumheller. Taken September 21, 2013 with the Canon 5D MkII and 24mm lens with a single 30-second exposure. Light from waning gibbous Moon provided the illumination.

Area of southern Milky Way containing Eta Carinae, Crux and Alpha & Beta Centaurus, taken from Atacama Lodge, Chile, March 2010, with Canon 5D MkII (modified) and Sigma 50mm lens at f/4 for stack of 4 x 6 minute exposures at ISO 800 plus stack of 4 x 6 minutes with Kenko Softon filter for star glows.

13900387 - Area of southern Milky Way containing Eta Carinae, Crux and Alpha & Beta Centaurus, taken from Atacama Lodge, Chile, March 2010, with Canon 5D MkII (modified) and Sigma 50mm lens at f/4 for stack of 4 x 6 minute exposures at ISO 800 plus stack of 4 x 6 minutes with Kenko Softon filter for star glows.

Pipe Nebula area, field oriented equatorially, with Hutech-modified Canon 5D camera with 135mm f/2 Canon L lens at f/4 for 6 minutes each at ISO400. Stack of 4 exposures, averaged stacked. Taken from Coonabarabran, NSW, Australia, July 2006.

13900284 - Pipe Nebula area, field oriented equatorially, with Hutech-modified Canon 5D camera with 135mm f/2 Canon L lens at f/4 for 6 minutes each at ISO400. Stack of 4 exposures, averaged stacked. Taken from Coonabarabran, NSW, Australia, July 2006.

A 3-section panorama of a retreating thunderstorm taken from my back deck, with the Canon 5D MkII and 16-35mm Canon lens at 16mm. The storm shows mammatiform clouds and virga from falling rain. The illumination at sunset was perfect. The waxing quarter Moon is at right. Taken from southern Alberta, Canada.

13899821 - A 3-section panorama of a retreating thunderstorm taken from my back deck, with the Canon 5D MkII and 16-35mm Canon lens at 16mm. The storm shows mammatiform clouds and virga from falling rain. The illumination at sunset was perfect. The waxing quarter Moon is at right. Taken from southern Alberta, Canada.

The summer Milky Way over the campsite at Writing-on-Stone Provincial Park, Alberta, taken from the Visitor Centre RV parking area, Sept 1, 2013. This was a perfect night, warm, no wond, and no bugs. This is one frame of a 200 frame azimuth pan time-lapse with the Radian. This is 30 seconds with the 24mm lens at f/2.8 and Canon 5D MkII at ISO 3200. Yellow glows are urban light pollution from towns in Montana. Car headlights light up the sandstone formations in the Milk River Valley.

13899556 - The summer Milky Way over the campsite at Writing-on-Stone Provincial Park, Alberta, taken from the Visitor Centre RV parking area, Sept 1, 2013. This was a perfect night, warm, no wond, and no bugs. This is one frame of a 200 frame azimuth pan time-lapse with the Radian. This is 30 seconds with the 24mm lens at f/2.8 and Canon 5D MkII at ISO 3200. Yellow glows are urban light pollution from towns in Montana. Car headlights light up the sandstone formations in the Milk River Valley.

Comey Lovejoy, C/2014 Q2, nearest the Pleiades star cluster, Messier 45, on the night of Sunday, January 18, 2015, with its blue ion tail almost passing over the cluster. This is a stack of 6 x 2 minute exposures at f/2.5 with the 135mm lens and Canon 5D MkII at ISO 1600, on the Sky-Watcher Star Adventurer tracker. Taken from City of Rocks State Park, New Mexico, Some haze was passing thru this night but this is a stack of the cleanest frames.

13899504 - Comey Lovejoy, C/2014 Q2, nearest the Pleiades star cluster, Messier 45, on the night of Sunday, January 18, 2015, with its blue ion tail almost passing over the cluster. This is a stack of 6 x 2 minute exposures at f/2.5 with the 135mm lens and Canon 5D MkII at ISO 1600, on the Sky-Watcher Star Adventurer tracker. Taken from City of Rocks State Park, New Mexico, Some haze was passing thru this night but this is a stack of the cleanest frames.

The aurora of February 3-4, 2014 seen from Churchill, Manitoba at the Churchill Northern Studies Centre. I posed for my self-portrait under the stars and Northern Lights. This is a 30-second exposure at f/2.8 with the 24mm lens and ISO 2000 wth the Canon 5D MkII. Vega is setting at left, Arcturus is rising at right.

13899253 - The aurora of February 3-4, 2014 seen from Churchill, Manitoba at the Churchill Northern Studies Centre. I posed for my self-portrait under the stars and Northern Lights. This is a 30-second exposure at f/2.8 with the 24mm lens and ISO 2000 wth the Canon 5D MkII. Vega is setting at left, Arcturus is rising at right.

Orion, Canis Major & Monoceros, taken from the Painted Pony Resort in New Mexico, March 14, 2013. A stack of 5 x 6 minute exposures at f/3.2 with the 35mm Canon L-series lens and 5D MkII at ISO 800, plus a layer of 2 x 4 minutes with the Kenko Softon filter for the star glows. M46, M47 and M41 clusters all visible at left and lower centre.

13898359 - Orion, Canis Major & Monoceros, taken from the Painted Pony Resort in New Mexico, March 14, 2013. A stack of 5 x 6 minute exposures at f/3.2 with the 35mm Canon L-series lens and 5D MkII at ISO 800, plus a layer of 2 x 4 minutes with the Kenko Softon filter for the star glows. M46, M47 and M41 clusters all visible at left and lower centre.

The LMC, Large Magellanic Cloud, taken with 135mm telephoto lens for a field of view similar to binoculars. Taken from Timor Cottage, Coonabarabran, NSW, Australia, Dec 5, 2012. This is a stack of 10 x 5 minute exposures, median combined (to eliminate some satellite trails) at f/2.8 with Canon L-series 135mm lens and the modified Canon 5D Mark II camera at ISO 800. Tracked on AP 400 equatorial mount.

13898099 - The LMC, Large Magellanic Cloud, taken with 135mm telephoto lens for a field of view similar to binoculars. Taken from Timor Cottage, Coonabarabran, NSW, Australia, Dec 5, 2012. This is a stack of 10 x 5 minute exposures, median combined (to eliminate some satellite trails) at f/2.8 with Canon L-series 135mm lens and the modified Canon 5D Mark II camera at ISO 800. Tracked on AP 400 equatorial mount.

The summer Milky Way on a clear moonless September evening, from my rural backyard in southern Alberta. This is a stack of 5 x 5 minute exposures with the 15mm f/2.8 lens and Canon 5D MkII at ISO 800, on the iOptron SkyTracker. Portrait version.

13897607 - The summer Milky Way on a clear moonless September evening, from my rural backyard in southern Alberta. This is a stack of 5 x 5 minute exposures with the 15mm f/2.8 lens and Canon 5D MkII at ISO 800, on the iOptron SkyTracker. Portrait version.

$M8 Lagoon Nebula and M20 Trifid Nebula, with Astro-Physics Traveler 4-inch apo refractor at f/6 with Canon 5D camera, for 7 minutes each at ISO800. Stack of four exposures. Taken from Coonabarabran, NSW, Australia, July 2006. Slight trailing and soft focus.$

13900508 - M8 Lagoon Nebula and M20 Trifid Nebula, with Astro-Physics Traveler 4-inch apo refractor at f/6 with Canon 5D camera, for 7 minutes each at ISO800. Stack of four exposures. Taken from Coonabarabran, NSW, Australia, July 2006. Slight trailing and soft focus.

Full sweep of Southern Milky Way. Taken with 15mm Canon full-frame fish-eye lens at f/4 and Hutech-modified Canon 5D for stack of 3 x 6 minute exposures at ISO 400. Ground is blurred because of stacking of 18 minutes worth of exposures nd sky is rotating around pole which is near centre of image. Taken from Coonabarabran, NSW, Australia, April 19, 2007.

13900471 - Full sweep of Southern Milky Way. Taken with 15mm Canon full-frame fish-eye lens at f/4 and Hutech-modified Canon 5D for stack of 3 x 6 minute exposures at ISO 400. Ground is blurred because of stacking of 18 minutes worth of exposures nd sky is rotating around pole which is near centre of image. Taken from Coonabarabran, NSW, Australia, April 19, 2007.

The waxing gibbous Moon above the blue shadow of the Earth and pink Belt of Venus band, with dark blue crepuscular rays converging on the anti-solar point in the east, at sunset, from the badlands of Dinosaur Provincial Park, Alberta. Part of a 450-frame time-lapse sequence, taken with the Canon 5D MkII and 24mm lens on the Radian motion controller.

13900366 - The waxing gibbous Moon above the blue shadow of the Earth and pink Belt of Venus band, with dark blue crepuscular rays converging on the anti-solar point in the east, at sunset, from the badlands of Dinosaur Provincial Park, Alberta. Part of a 450-frame time-lapse sequence, taken with the Canon 5D MkII and 24mm lens on the Radian motion controller.

The winter Milky Way and Zodiacal Light in a 180° panorama taken at the Painted Pony Resort in southwestern New Mexico, March 11, 2013. The panorama is a composite of 4 segments, each a two layer stack, and each exposure 3 minutes at f/2.8 with the 14mm Samyang lens and Canon 5D MkII at ISO 1600, and each exposure tracked on the iOptron SkyTracker. The ground is from one exposure per segment. Jupiter is the bright object near the centre.

13900327 - The winter Milky Way and Zodiacal Light in a 180° panorama taken at the Painted Pony Resort in southwestern New Mexico, March 11, 2013. The panorama is a composite of 4 segments, each a two layer stack, and each exposure 3 minutes at f/2.8 with the 14mm Samyang lens and Canon 5D MkII at ISO 1600, and each exposure tracked on the iOptron SkyTracker. The ground is from one exposure per segment. Jupiter is the bright object near the centre.

Me posing in the night at Reesor Lake, Cypress Hills Interprovincial Park, Alberta, with the Milky Way over the misty lake. A single 30-second untracked exposure (not a composite) with the 24mm lens at f/2 and Canon 5D MkII at ISO 3200.

13900149 - Me posing in the night at Reesor Lake, Cypress Hills Interprovincial Park, Alberta, with the Milky Way over the misty lake. A single 30-second untracked exposure (not a composite) with the 24mm lens at f/2 and Canon 5D MkII at ISO 3200.

Scorpius and Sagittarius, taken from Atacama Lodge in Chile (23° S), March 19/20, 2010, using modified Canon 5D MkII camera, and Sigma 50mm lens at f/4 for stack of 4 x 6 minute exposures, Mean combined, plus stack of 2 x 6 minutes with Kenko Softon filter for star glows.

13899869 - Scorpius and Sagittarius, taken from Atacama Lodge in Chile (23° S), March 19/20, 2010, using modified Canon 5D MkII camera, and Sigma 50mm lens at f/4 for stack of 4 x 6 minute exposures, Mean combined, plus stack of 2 x 6 minutes with Kenko Softon filter for star glows.

The aurora of February 3-4, 2014 seen from Churchill, Manitoba at the Churchill Northern Studies Centre, with an observer taking in the sight of the auroral curtains twisting through Orion (at left), Taurus (at right) and Auriga (top). This is a 6-second exposure at f/1.8 with the 24mm lens and ISO 2000 wth the Canon 5D MkII.

13899592 - The aurora of February 3-4, 2014 seen from Churchill, Manitoba at the Churchill Northern Studies Centre, with an observer taking in the sight of the auroral curtains twisting through Orion (at left), Taurus (at right) and Auriga (top). This is a 6-second exposure at f/1.8 with the 24mm lens and ISO 2000 wth the Canon 5D MkII.

Southern Milky Way from Atacama Lodge, Chile (latitude 23° S) taken March 14/15, 2010. Taken witn Canon 5D MkII (modified) and Canon 15mm lens at f/4 for stack of 4 x 6 minute exposures at ISO 800. Horizon retained from just one image to retain detail and minimize blurring from tracking. But sky is Mean stack. Taken before dawn with zodiacal light becoming promiment in east.

13899480 - Southern Milky Way from Atacama Lodge, Chile (latitude 23° S) taken March 14/15, 2010. Taken witn Canon 5D MkII (modified) and Canon 15mm lens at f/4 for stack of 4 x 6 minute exposures at ISO 800. Horizon retained from just one image to retain detail and minimize blurring from tracking. But sky is Mean stack. Taken before dawn with zodiacal light becoming promiment in east.

The Tarantula Nebula area, NGC 2070, of the Large Magellanic CLoud, LMC. Numerous other nebulas and clusters in this field! This is a stack of 5 x 12 minute exposures at ISO 640 with the Canon 5D MkII and 105mm Astro-Physics Traveler at f/5.6 with 6x7 field flattener. Shot December 10, 2012 from Timor Cottage at Coonabarabran, Australia

13899013 - The Tarantula Nebula area, NGC 2070, of the Large Magellanic CLoud, LMC. Numerous other nebulas and clusters in this field! This is a stack of 5 x 12 minute exposures at ISO 640 with the Canon 5D MkII and 105mm Astro-Physics Traveler at f/5.6 with 6x7 field flattener. Shot December 10, 2012 from Timor Cottage at Coonabarabran, Australia

Gum Nebula area of Vela and Puppis. Taken from Atacama Lodge, Chile, March 19, 2010, with modified Canon 5D MkII and Sigma 50mm lens at f/4, for stack of 10 x 6 minute exposures (Mean combined) at ISO 800 plus 2 x 6 minutes with Kenko Softon filter. High contrast boost and Selective Colour adjustments to bring out nebulocity while retaining neutral sky.

13898921 - Gum Nebula area of Vela and Puppis. Taken from Atacama Lodge, Chile, March 19, 2010, with modified Canon 5D MkII and Sigma 50mm lens at f/4, for stack of 10 x 6 minute exposures (Mean combined) at ISO 800 plus 2 x 6 minutes with Kenko Softon filter. High contrast boost and Selective Colour adjustments to bring out nebulocity while retaining neutral sky.

Bright -6 magnitude Iridium flare, June 21, 2010, at 12:28 am MDT, moving from south to north. Camera on tripod exposure for 40s at f/4 with 24mm lens, and Canon 5D MkII camera at ISO 1000. Star below Iridium is Acrturus.

13898761 - Bright -6 magnitude Iridium flare, June 21, 2010, at 12:28 am MDT, moving from south to north. Camera on tripod exposure for 40s at f/4 with 24mm lens, and Canon 5D MkII camera at ISO 1000. Star below Iridium is Acrturus.

The northern summer Milky Way rising into the east. Taken from the Painted Pony Resort, New Mexico, March 10, 2013. This is a stack of 10 x 5 minute tracked exposures with the Samyang 14mm lens at f/2.8 and Canon 5D MkII at ISO 800. Used iOptron SkyTracker. Ground is from two exposures.

13898627 - The northern summer Milky Way rising into the east. Taken from the Painted Pony Resort, New Mexico, March 10, 2013. This is a stack of 10 x 5 minute tracked exposures with the Samyang 14mm lens at f/2.8 and Canon 5D MkII at ISO 800. Used iOptron SkyTracker. Ground is from two exposures.

$The region of nebulosity on the Cepheus-Cassiopeia border with NGC 7822 (top) and Ced 214 (bottom). This is a stack of 15 x 7 minute exposures at f/4.4 with the 92mm apo refractor and filter-modified Canon 5D Mark II at ISO 800. Taken from New Mexico. Focus is a little soft.$

13898423 - The region of nebulosity on the Cepheus-Cassiopeia border with NGC 7822 (top) and Ced 214 (bottom). This is a stack of 15 x 7 minute exposures at f/4.4 with the 92mm apo refractor and filter-modified Canon 5D Mark II at ISO 800. Taken from New Mexico. Focus is a little soft.

Sagittarius and Scorpius in diagonal framing, with Milky Way from Ara to Serpens. Taken with 50mm Sigma lens at f/4 and Canon 5D MkII at ISO 800 for stack of just 2 frames each at 6 minutes. Cloud prevented more exposures. Taken from Atacama Lodge, San Pedro de Atacama, Chile.

13898038 - Sagittarius and Scorpius in diagonal framing, with Milky Way from Ara to Serpens. Taken with 50mm Sigma lens at f/4 and Canon 5D MkII at ISO 800 for stack of just 2 frames each at 6 minutes. Cloud prevented more exposures. Taken from Atacama Lodge, San Pedro de Atacama, Chile.

The Milky Way over Upper Waterton Lake, Waterton Lakes National Park, Alberta, on August 29, 2013. This is a US World Heritage Site. Taken with the 14mm lens and Canon 5D MkII for 60 seconds at ISO 3200 and f/2.8. Light from town streetlights provides the illumination. The Moon was not up. It was a very windy night!

13897965 - The Milky Way over Upper Waterton Lake, Waterton Lakes National Park, Alberta, on August 29, 2013. This is a US World Heritage Site. Taken with the 14mm lens and Canon 5D MkII for 60 seconds at ISO 3200 and f/2.8. Light from town streetlights provides the illumination. The Moon was not up. It was a very windy night!

Scorpius in the pre-dawn sky, March 15, 2013, from the Painted Pony Resort, New Mexico. This is a stack of 5 x 3 minute exposures at f/2.8 with the 35mm lens and Canon 5D MkII at ISO 1600, with the ground from one image, plus a stack of 2 exposures through the Kenko Softon filter for the star glows.

13897700 - Scorpius in the pre-dawn sky, March 15, 2013, from the Painted Pony Resort, New Mexico. This is a stack of 5 x 3 minute exposures at f/2.8 with the 35mm lens and Canon 5D MkII at ISO 1600, with the ground from one image, plus a stack of 2 exposures through the Kenko Softon filter for the star glows.

$Comet Hartley 2 near the Pacman Nebula, NGC 281, in Cassiopeia. Stack of 4 x 6 minute exposures at ISO 1600 with Canon 5D MkII on A&M 105mm apo refractor at f/4.8 with Borg reducer/flattener. Bright star is Alpha Cas, Schedar. Autoguided with Celestron NexGuide autoguider. However, image of comet core is from only one exposure to minimize trailing from this fast-moving comet.$

13897417 - Comet Hartley 2 near the Pacman Nebula, NGC 281, in Cassiopeia. Stack of 4 x 6 minute exposures at ISO 1600 with Canon 5D MkII on A&M 105mm apo refractor at f/4.8 with Borg reducer/flattener. Bright star is Alpha Cas, Schedar. Autoguided with Celestron NexGuide autoguider. However, image of comet core is from only one exposure to minimize trailing from this fast-moving comet.

A composite of 233 images, taken with the Canon 5D MkII and 16-35mm lens, at Bow Lake in Banff, showing circumpolar star trails across the sky looking north over Num-Ti-Jah Lodge. Each image was 50 seconds, taken at 1s intervals at ISO 1250 and at f/4. Stacked in Photoshop using Chris Schur's Photoshop Action.

13900346 - A composite of 233 images, taken with the Canon 5D MkII and 16-35mm lens, at Bow Lake in Banff, showing circumpolar star trails across the sky looking north over Num-Ti-Jah Lodge. Each image was 50 seconds, taken at 1s intervals at ISO 1250 and at f/4. Stacked in Photoshop using Chris Schur's Photoshop Action.

Sunset clouds and colours on December 3, 2013 from Massai Point, Chiricahua National Monument, Arizona. This is a 7-frame HDR High Dynamic Range stack to compress the high contrast from the bright sky and dark foreground into one image. Combined with Photomatix Pro. Taken with the Canon 5D MkIi and Canon 24mm lens at f/8. From images _MG_6996_6997_6998_6999_7000_7001_7002 taken at 2/3rd stop increments.

13900310 - Sunset clouds and colours on December 3, 2013 from Massai Point, Chiricahua National Monument, Arizona. This is a 7-frame HDR High Dynamic Range stack to compress the high contrast from the bright sky and dark foreground into one image. Combined with Photomatix Pro. Taken with the Canon 5D MkIi and Canon 24mm lens at f/8. From images _MG_6996_6997_6998_6999_7000_7001_7002 taken at 2/3rd stop increments.

The extensive Gum Nebula area in Vela, an interstellar bubble blown by winds from hot stars, with the False Cross at left. This is a stack of 4 x 5 minute exposures at f/3.2 with the Sigma 50mm lens and filter-modified Canon 5D MkII at ISO 800. Taken from Coonabarabran, Australia, December 2012. High cloud added natural glows around stars. Star clusters NGC 2516 (below False Cross) and IC 2391 (right of false Cross) stand out. Superhot star Gamma Velorum is at centre.

13899901 - The extensive Gum Nebula area in Vela, an interstellar bubble blown by winds from hot stars, with the False Cross at left. This is a stack of 4 x 5 minute exposures at f/3.2 with the Sigma 50mm lens and filter-modified Canon 5D MkII at ISO 800. Taken from Coonabarabran, Australia, December 2012. High cloud added natural glows around stars. Star clusters NGC 2516 (below False Cross) and IC 2391 (right of false Cross) stand out. Superhot star Gamma Velorum is at centre.

The summer Milky Way and centre of the Galaxy area in Scorpius and Sagittarius rising above the adobe lodges at the Painted Pony Resort in southwest New Mexico, March 14, 2013. This is a stack of 5 x 3.5 minute exposures at f/2.8 with the 24mm lens and Canon 5D MkII at ISO 1600, plus a layer of two exposures taken through the Softon filter for the star glows.

13899198 - The summer Milky Way and centre of the Galaxy area in Scorpius and Sagittarius rising above the adobe lodges at the Painted Pony Resort in southwest New Mexico, March 14, 2013. This is a stack of 5 x 3.5 minute exposures at f/2.8 with the 24mm lens and Canon 5D MkII at ISO 1600, plus a layer of two exposures taken through the Softon filter for the star glows.

Tail of Scorpius with False Comet area (NGC 6231 and IC 4628) and Ara )with NGC 6188 nebulosity), taken from Atacama Lodge, Chile, March 2010, with Canon 5D MkII (modified) and Canon L-series 135mm lens at f/2.8 for stack of 5 x 4 minute exposures at ISO 800. Focus a tad soft.

13899193 - Tail of Scorpius with False Comet area (NGC 6231 and IC 4628) and Ara )with NGC 6188 nebulosity), taken from Atacama Lodge, Chile, March 2010, with Canon 5D MkII (modified) and Canon L-series 135mm lens at f/2.8 for stack of 5 x 4 minute exposures at ISO 800. Focus a tad soft.

IC 1318 area of Cygnus around Gamma Cygni. Stack of 4 x 15 minute exposure on a superb night, with TMB 92mm apo with Canon 5D MkII at ISO 400. A cooler night than previous ones as well, so lower base noise. Borg FF.

13899152 - IC 1318 area of Cygnus around Gamma Cygni. Stack of 4 x 15 minute exposure on a superb night, with TMB 92mm apo with Canon 5D MkII at ISO 400. A cooler night than previous ones as well, so lower base noise. Borg FF.

The summer Milky Way rising late on a spring night over a fallow wheatfield in spring, 2013. Taken from home, May 6, 2013, with the Canon 5D MkII and Samyang 14mm lens at f/2.8 for a stack of 5 x 2.5 minute exposures at ISO 1600, all tracked on the iOptron Sky-Tracker. The ground is from one exposure. Taken from a latitude of +50° so Scorpius at right and Sagittarius right of centre are skimming the southern horizon. Taken from southern Alberta, Canada.

13898959 - The summer Milky Way rising late on a spring night over a fallow wheatfield in spring, 2013. Taken from home, May 6, 2013, with the Canon 5D MkII and Samyang 14mm lens at f/2.8 for a stack of 5 x 2.5 minute exposures at ISO 1600, all tracked on the iOptron Sky-Tracker. The ground is from one exposure. Taken from a latitude of +50° so Scorpius at right and Sagittarius right of centre are skimming the southern horizon. Taken from southern Alberta, Canada.

Nebulosity in the heart of Cygnus the Swan, including the North America Nebula and Pelican Nebula at left (NGC 7000 and IC 5070) and Gamma Cygni complex at right (IC 1318). The Crescent Nebula (NGC 6888) is at lower right. This is a stack of 5 x 4 minute exposures at f/2 with the 135mm lens and modified Canon 5D MkII at ISO 800, plus another three similar exposure images but taken thru the Kenko Softon filter for the star glows. Taken from home Sept 10, 2013.

13898272 - Nebulosity in the heart of Cygnus the Swan, including the North America Nebula and Pelican Nebula at left (NGC 7000 and IC 5070) and Gamma Cygni complex at right (IC 1318). The Crescent Nebula (NGC 6888) is at lower right. This is a stack of 5 x 4 minute exposures at f/2 with the 135mm lens and modified Canon 5D MkII at ISO 800, plus another three similar exposure images but taken thru the Kenko Softon filter for the star glows. Taken from home Sept 10, 2013.

Southern Milky Way from Atacama Lodge, Chile (latitude 23° S) taken March 15/16, 2010. Taken witn Canon 5D MkII (modified) and Canon L-Series 35mm lens at f/4 for stack of 4 x 6 minute exposures, plus stack of 2 x 6 minute with Kenko Softon filter for star glows.

13898109 - Southern Milky Way from Atacama Lodge, Chile (latitude 23° S) taken March 15/16, 2010. Taken witn Canon 5D MkII (modified) and Canon L-Series 35mm lens at f/4 for stack of 4 x 6 minute exposures, plus stack of 2 x 6 minute with Kenko Softon filter for star glows.

Sagittarius and Scorpius in the pre-dawn sky, March 15, 2013, from the Painted Pony Resort, New Mexico. This is a stack of 5 x 4 minute exposures at f/2.8 with the 35mm lens and Canon 5D MkII at ISO 1600, with the ground from one image, plus a stack of 2 exposures through the Kenko Softon filter for the star glows.

13900612 - Sagittarius and Scorpius in the pre-dawn sky, March 15, 2013, from the Painted Pony Resort, New Mexico. This is a stack of 5 x 4 minute exposures at f/2.8 with the 35mm lens and Canon 5D MkII at ISO 1600, with the ground from one image, plus a stack of 2 exposures through the Kenko Softon filter for the star glows.

$The Pleiades star cluster, aka Seven Sisters, or M45, in Taurus. A deep exposure showing the reflection nebulosity which fills the area. This is a stack of 5 x 14 minute exposures with the TMB 92mm apo refractor and Borg 0.85x flattener/reducer at f/4.8 and Canon 5D MkII at ISO 800. Taken from home Oct 9/10, 2013.$

13900605 - The Pleiades star cluster, aka Seven Sisters, or M45, in Taurus. A deep exposure showing the reflection nebulosity which fills the area. This is a stack of 5 x 14 minute exposures with the TMB 92mm apo refractor and Borg 0.85x flattener/reducer at f/4.8 and Canon 5D MkII at ISO 800. Taken from home Oct 9/10, 2013.

$The Carina Nebula (aka Eta Carinae) in the southern sky, shot December 11, 2012 from Timor Cottage, Coonabarabran, NSW, Australia. This is a stack of 5 x 12 minute exposures at ISO 400 with the Canon 5D MkII (filter modified) and Astro-Physics 105mm Traveler apo refractor and 6x7 field flattener.$

13900176 - The Carina Nebula (aka Eta Carinae) in the southern sky, shot December 11, 2012 from Timor Cottage, Coonabarabran, NSW, Australia. This is a stack of 5 x 12 minute exposures at ISO 400 with the Canon 5D MkII (filter modified) and Astro-Physics 105mm Traveler apo refractor and 6x7 field flattener.

The centre of the Galaxy in Sagittarius and Scorpius rising above the southeast horizon, from New Mexico, at the Painted Pony Resort. This is a stack of 5 x 5 minute exposures with the 24mm lens at f/2.8 and Canon 5D MkII at ISO 800. The landscape is from one exposure and shadow detail brought out. An additional image shot thru the Kenko Softon filter was layered in to add the star glows.

13899654 - The centre of the Galaxy in Sagittarius and Scorpius rising above the southeast horizon, from New Mexico, at the Painted Pony Resort. This is a stack of 5 x 5 minute exposures with the 24mm lens at f/2.8 and Canon 5D MkII at ISO 800. The landscape is from one exposure and shadow detail brought out. An additional image shot thru the Kenko Softon filter was layered in to add the star glows.

The Sagittarius Milky Way area, around the centre of the Galaxy, over the trees and campsite at Cypress Hills Interprovincial Park, Sasksatchewan. Taken August 17, 2012 at the Saskatchewan Summer Star Party. This is a composite of 6 exposures: all 2 minutes at f/2.8 and ISO 1600 with the Canon 5D MkII and Sigma 50mm lens, but 5 exposures were tracked and 1 exposure was untracked to prevent the ground from blurring. Ground is from the untracked exposure, sky is from the stack of 5 tracked exposures. All taken from the same location -- the ground is not faked onto a separate sky shot. The horizo

13899586 - The Sagittarius Milky Way area, around the centre of the Galaxy, over the trees and campsite at Cypress Hills Interprovincial Park, Sasksatchewan. Taken August 17, 2012 at the Saskatchewan Summer Star Party. This is a composite of 6 exposures: all 2 minutes at f/2.8 and ISO 1600 with the Canon 5D MkII and Sigma 50mm lens, but 5 exposures were tracked and 1 exposure was untracked to prevent the ground from blurring. Ground is from the untracked exposure, sky is from the stack of 5 tracked exposures. All taken from the same location -- the ground is not faked onto a separate sky shot. The horizo

The aurora of February 3-4, 2014 seen from Churchill, Manitoba at the Churchill Northern Studies Centre, in an all-sky view with the 8mm fish-eye lens. This is a 20-second exposure at f/3.5 and ISO 3200 wth the Canon 5D MkII. This is looking north and east. Members of the aurora tour group are in the foreground, in front of the main CNSC building.

13899186 - The aurora of February 3-4, 2014 seen from Churchill, Manitoba at the Churchill Northern Studies Centre, in an all-sky view with the 8mm fish-eye lens. This is a 20-second exposure at f/3.5 and ISO 3200 wth the Canon 5D MkII. This is looking north and east. Members of the aurora tour group are in the foreground, in front of the main CNSC building.

13898954 - Taken at SSSP, August 14, 2010, using Canon 5D MkII and 15mm lens.

$Comet Lovejoy (C/2104 Q2) on the night of Dec. 27/28, 2014, as it was approaching the globular cluster M79 at upper right, in Lepus. This is a stack of 5 x 3 minute exposures at ISO 2500 with the Canon 5D MkII and TMB 92mm refractor at f/4.4. Taken from near Silver City, New Mexico.$

13898894 - Comet Lovejoy (C/2104 Q2) on the night of Dec. 27/28, 2014, as it was approaching the globular cluster M79 at upper right, in Lepus. This is a stack of 5 x 3 minute exposures at ISO 2500 with the Canon 5D MkII and TMB 92mm refractor at f/4.4. Taken from near Silver City, New Mexico.

Evening twilight with Venus in the sky, on December 3, 2013 from Massai Point, Chiricahua National Monument, Arizona. This is a 8-frame HDR High Dynamic Range stack to compress the high contrast from the bright sky and dark foreground into one image. Combined with Photomatix Pro. Taken with the Canon 5D MkIi and Rokinon 14mm manual lens at f/8. Some wind has blurred trees. From images _MG_7042 to 7049, taken at 2/3rd stop increments.

13898845 - Evening twilight with Venus in the sky, on December 3, 2013 from Massai Point, Chiricahua National Monument, Arizona. This is a 8-frame HDR High Dynamic Range stack to compress the high contrast from the bright sky and dark foreground into one image. Combined with Photomatix Pro. Taken with the Canon 5D MkIi and Rokinon 14mm manual lens at f/8. Some wind has blurred trees. From images _MG_7042 to 7049, taken at 2/3rd stop increments.

A single frame from a 300-frame time lapse movie, this one showing a bright meteor that showed up only on that one frame, a bit of luck as each exposure was only 4 seconds at 4 second intervals. Taken with the Canon 5D MkII and 16-35mm lens at f/2.8 and ISO 1600 to keep exposures short to minimize blurring of the windmill blades (to no avail), despite the bright moonlight from a Full Moon.

13898369 - A single frame from a 300-frame time lapse movie, this one showing a bright meteor that showed up only on that one frame, a bit of luck as each exposure was only 4 seconds at 4 second intervals. Taken with the Canon 5D MkII and 16-35mm lens at f/2.8 and ISO 1600 to keep exposures short to minimize blurring of the windmill blades (to no avail), despite the bright moonlight from a Full Moon.

The North America Nebula (NGC 7000) and Pelican Nebula (IC 5070) area near Deneb in Cygnus. Taken from home July 24, 2012 with Canon 5D MkII camera at ISO 800 and Canon 200mm L-series lens at f/3.5 for stack of 2 x 5 minutes exposures, mean combined, plus 2 x 5 minute exposures with haze in sky which added the star glows.

13898268 - The North America Nebula (NGC 7000) and Pelican Nebula (IC 5070) area near Deneb in Cygnus. Taken from home July 24, 2012 with Canon 5D MkII camera at ISO 800 and Canon 200mm L-series lens at f/3.5 for stack of 2 x 5 minutes exposures, mean combined, plus 2 x 5 minute exposures with haze in sky which added the star glows.

$Open cluster pair of NGC 2451 (right), a bright loose cluster, and NGC 2477 (left), a fainter but very rich open cluster. The field is also filled with faint emission nebulosity. Taken from Timor Cottage, Coonabarabran, NSW, Australia, December 12, 2010. This is a stack of 5 x 6 minute exposures at ISO 1600 with Canon 5D MkII camera on 105mm Astro-Physics Traveler apo refractor at f/5.8 with 6x7 field flattener.$

13898239 - Open cluster pair of NGC 2451 (right), a bright loose cluster, and NGC 2477 (left), a fainter but very rich open cluster. The field is also filled with faint emission nebulosity. Taken from Timor Cottage, Coonabarabran, NSW, Australia, December 12, 2010. This is a stack of 5 x 6 minute exposures at ISO 1600 with Canon 5D MkII camera on 105mm Astro-Physics Traveler apo refractor at f/5.8 with 6x7 field flattener.

Sunset twilight colours and the waxing gibbous Moon over the Chiricahua Mountains in southeast Arizona, south of Willcox. Taken December 15, 2013 on Highway 186. Taken with the 24mm lens and Canon 5D MkII. Some dark crepuscular rays are visible converging to the anti-solar point.

13898005 - Sunset twilight colours and the waxing gibbous Moon over the Chiricahua Mountains in southeast Arizona, south of Willcox. Taken December 15, 2013 on Highway 186. Taken with the 24mm lens and Canon 5D MkII. Some dark crepuscular rays are visible converging to the anti-solar point.

NGC 7000 and Pelican Nebula with TMB 92mm apo and Canon 5D Mk II on a superb night, with stack of 2 x 15 minutes + 2 x 12 minutes at ISO400 and Borg 0.85x flattener/reducer for f/4.6. Standard exposure is 12 minutes but the night was so good I did two at 15 minutes with no problem.

13897734 - NGC 7000 and Pelican Nebula with TMB 92mm apo and Canon 5D Mk II on a superb night, with stack of 2 x 15 minutes + 2 x 12 minutes at ISO400 and Borg 0.85x flattener/reducer for f/4.6. Standard exposure is 12 minutes but the night was so good I did two at 15 minutes with no problem.

Sunset from Piazzale Michelangelo in Firenze (Florence), Italy.-----. Captured with a Canon 5D Mk III camera and Canon EF 70-200/4L IS lens. -----. Florence (Italian: Firenze) is the capital city of the Italian region of Tuscany and of the province of Flo

71146866 - Sunset from Piazzale Michelangelo in Firenze (Florence), Italy.-----. Captured with a Canon 5D Mk III camera and Canon EF 70-200/4L IS lens. -----. Florence (Italian: Firenze) is the capital city of the Italian region of Tuscany and of the province of Flo

The Cygnus and Lyra area of the northern summer Milky Way, including the original Kepler FIeld. Deneb is at left, Vega at right. This is a stack of 5 x 10 minute exposures with the Sigma 50mm lens at f/2. 8 and filter-modified Canon 5D Mark II at ISO 800.

71146694 - The Cygnus and Lyra area of the northern summer Milky Way, including the original Kepler FIeld. Deneb is at left, Vega at right. This is a stack of 5 x 10 minute exposures with the Sigma 50mm lens at f/2. 8 and filter-modified Canon 5D Mark II at ISO 800.