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Multiple exposures of neon signs, Time Square, New York City, New York, United States of America, North America

Long exposure at Dardagna waterfalls in autumn, Parco Regionale del Corno alle Scale, Emilia Romagna, Italy, Europe

Long exposure image of clouds in the night sky over the old windmill, La Oliva, Fuerteventura, Canary Islands, Spain, Atlantic, Europe

Long exposure of waves crashing on Ilheus da Rib and Ribeira da Janela rock formations at dusk, Madeira island, Portugal, Atlantic, Europe

Long exposure at Dardagna waterfalls in autumn, Parco Regionale del Corno alle Scale, Emilia Romagna, Italy, Europe

Long exposure of Cascata da Ribeira dos Caldeirões waterfall on Sao Miguel island, Azores Islands, Portugal, Atlantic, Europe

Bolzano Cathedral and long exposure of customers at Christmas Market in Piazza Walther, Bolzano, Italy, Europe

Long Exposure of The South Star, Drakensberg Mountains, Royal Natal National Park, KwaZulu-Natal Province, South Africa

Long exposure of the Plaza de Espana in Parque de Maria Luisa at sunset, Seville, Andalucia, Spain, Europe

Long exposure on a bay on the coast of the Isle of Skye, Inner Hebrides, Scotland, United Kingdom, Europe

View of the American and Canadian Falls at dusk, car traffic time exposure, Niagara Falls, Ontario, Canada, North America

Long exposure of star trails in night sky, Monument Valley Navajo Tribal Park, Arizona Utah border, United States of America, North America

A climber at Everest Base Camp the day after he has attempted climbing Everest showing signs of exposure at high altitude, Khumbu Region, Nepal, Asia

Long exposure used to record moving clouds above old wooden ketch on Aln Estuary at low tide, Alnmouth, Alnwick, Northumberland, England, United Kingdom, Europe

Exterior of the Harrods department store in the Knightsbridge area of London. Photographed at dusk using a long exposure to create traffic light trails in the street.

Exterior of the Harrods department store in the Knightsbridge area of London. Photographed at dusk using a long exposure to create traffic light trails in the street.

Mont Blanc from the Aiguille Du Midi above Chamonix, France, with climbers on the Cosmiques Arete, climbing the ladder to access the cable car station.

Climbers on the arete leading up from the Vallee Blanche to the Aiguille Du Midi above Chamonix, France.

Climbers on the arete leading up from the Vallee Blanche to the Aiguille Du Midi above Chamonix, France.

Climbers on the arete leading up from the Vallee Blanche to the Aiguille Du Midi above Chamonix, France.

Mont Blanc from the Aiguille Du Midi above Chamonix, France, with climbers on the Cosmiques Arete, climbing the ladder to access the cable car station.

Brown bears, ursus arctos. Two bears at waterfall waiting to catch leaping salmon; summer; long exposure time usa, alaska. Brooks falls

French Polynesia, Leeward Islands, Aerial Of Borabora And Ms Paul Gauguin Cruise Ship In The Lagoon, (Double Exposure)

Long exposure camera times of a Jeep on the ice road from Tibbitt to Contwoyto beginning just outside of Yellowknife, Northwest Territories, Canada

Climber on a sea cliff climb on Baggy Point near Croyde in north Devon, England, United Kingdom, Europe

A mountain rescue team member abseiling in the snow above Kirkstone near Ambleside in the Lake District, Cumbria, England, United Kingdom, Europe

A mountain rescue team member abseiling in the snow above Kirkstone near Ambleside in the Lake District, Cumbria, England, United Kingdom, Europe

Climber on a sea cliff climb on Baggy Point near Croyde in north Devon, England, United Kingdom, Europe

Long exposure camera times of a Jeep on the ice road from Tibbitt to Contwoyto beginning just outside of Yellowknife, Northwest Territories, Canada

A mountaineer winter climbing in Coire an Sneachda in the Cairngorm mountains, Scotland, United Kingdom, Europe

A mountain rescue team member abseiling in the snow above Kirkstone near Ambleside in the Lake District, Cumbria, England, United Kingdom, Europe

A mountain rescue team member abseiling in the snow above Kirkstone near Ambleside in the Lake District, Cumbria, England, United Kingdom, Europe

A climber on Red Screes using a mobile phone, Lake District, Cumbria, England, United Kingdom, Europe

A mountain rescue team member abseiling in the snow above Kirkstone near Ambleside in the Lake District, Cumbria, England, United Kingdom, Europe

A mountain rescue team member abseiling in the snow above Kirkstone near Ambleside in the Lake District, Cumbria, England, United Kingdom, Europe

Climber on a sea cliff climb on Baggy Point near Croyde in north Devon, England, United Kingdom, Europe

Climbers on a sea cliff climb on Baggy Point near Croyde in north Devon, England, United Kingdom, Europe

A mountain rescue team member abseiling in the snow above Kirkstone near Ambleside in the Lake District, Cumbria, England, United Kingdom, Europe

Climber on a sea cliff climb on Baggy Point near Croyde in north Devon, England, United Kingdom, Europe

Climber on a sea cliff climb on Baggy Point near Croyde in north Devon, England, United Kingdom, Europe

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.

Comet NEOWISE (C/2020 F3) reflected in the still waters this night of Crawling Lake in southern Alberta. A dim aurora at right colours the sky magenta. Lingering twilight colours the sky blue. A meteor or more likely a flaring satellite appears at right and is also reflected in the water. Even in this short exposure, the two tails ' dust and ion ' are visible. This was July 20, 2020.

The waning gibbous Moon approaches the star Aldebaran at an occultation on the morning of September 12, 2017. This is a multiple exposure composite of the ingress phase that occurred before sunrise, with the Moon from the final exposure and the star from exposures taken at 4-minute intervals prior to that last exposure. For the actual ingress I switched to HD movie to shoot a video of the event.

A demo image with the Orion 80mm CF Apo and Celestron AVX mount, with 3 x 8 minute and 3 x 6 minutes, at ISO 1600 with Canon 6D MkII plus shorter 3 x 2 minute and 3 x 1 minute exposures blended in with luminosity masks. Guided with the Orion Starshoot and Orion finderscope, using PHD2, with a lot of wild excursions in the guiding.

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.

Astronomer Vance Petriew at the eyepiece of his 20-inch Dobsonian reflector telescope, at the 2012 Saskatchewan Summer Star Party in Cypress Hills, SK. This is a single 20 second exposure with the Canon 5DMkII at ISO 4000, and 24mm Canon L-series lens at f/2. A faint aurora adds the horizon colours. The photo was taken on the occasion of the second return of Comet Petriew 185/P since its discovery 11 years earlier in 2001 at this very same location.

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.

M33, the Triangulum Spiral, a dwarf spiral in the Local Group. This is a 6-image stack of 12-minute exposures with the Canon 7D at ISO 800 on the 130mm Astro-Physics apo refractor at f/6 on AP 600E mount and SBIG SG4 autoguider. Poor seeing bloated star images somewhat.

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 partial eclipse of the Sun, October 23, 2014, as seen from Jasper, Alberta, shot under clear skies through a mylar filter, on the front of a 66mm f/6 apo refractor using the Canon 60Da for 1/8000 (!) sec exposure at ISO 100. The colours are natural, with the mylar filter providing a neutral 'white light' image. The big sunspot on the Sun that day is just disappearing behind the Moon's limb. The mylar filter gave a white Sun, its natural colour, but I have tinted the Sun's disk yellow for a more pleasing view that is not just white Sun/black sky.

Harvest Moon, Sept. 27, 2004, taken from near home. With Canon Digital Rebel 300D, with 20mm lens at f/13 and 1/2 sec exposure at ISO100. Minimal processing to increase contrast but Moon image is not a fake -- the balance between sky and Moon was perfect for recording Moon detail and ground without over or underexposing either.

The partial eclipse of the Sun, October 23, 2014, as seen from Jasper, Alberta, in this case shot through thin cloud but that makes for a more interesting photo than one in a clear sky. This is still shot through a mylar filter, on the front of a 66mm f/6 apo refractor using the Canon 60Da for 1/25 sec exposure at ISO 100. The colours are natural, with the mylar filter providing a neutral 'white light' image. With the Sun dimmed a lot by cloud, the longer exposure allowed picking up light and colours in the surrounding clouds.

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.

The supernova remnant IC 443 in Gemini near the stars Mu (left) and Eta (right) Geminorum. Slight haze passing thru on some exposures added 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.

Omega Centauri globular cluster, with Canon 20Da camera with 4-inch Astro-Physics Traveler apo refractor at f/6 for 4 minutes each at ISO800. Stack of 4 exposures, averaged stacked. Plus short 2-minute exposure for core area. Taken from Queensland, Australia, July 2006.

The Moon in total eclipse, on January 20, 2019, in a multiple exposure composite showing the Moon moving from right to left (west to east) through the Earth's umbral shadow.

A telescopic closeup of Comet Lovejoy (C/2014 Q2) on January 19, 2015. I shot this from near Silver City, New Mexico, using a TMB 92mm apo refractor at f/4.4 and using a Canon 6D at ISO 1600 for a stack of 4 x 5 minute exposures. The ion tail is primarily from a single exposure to minimize blurring from the comet's motion relative to the stars. The rest of the image is from the stacked combination to minimize noise.

Orion Nebula region with NGC1973-7. Stack of two 10-minute exposures + stack of 30s and 1min exposure for retaining bright core deail. Blended with Normal @ 85% but erasing all of short exposure layer except for core.

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.

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.

Comet Holmes, 17P, taken Nov 1, 2007 on excellent night. Taken with A&M 105mm apo refractor at f/5 with Borg 0.85x compressor/field flattener on SkyWatcher HEQ5 mount. Canon 20Da camera at ISO400. Composite of 4 min, 2min, 1min, 30sec, 15sec, and 7 sec exposures, each exposure being a stack of 3 to 4 identical exposures. Registered and stacked in Photoshop (HDR mode did not produce usable result, so manually composited with sucessively smaller masks to reveal short exposure content around nucleus. Contrast exaggerated with Curves to bring out very faint tail structure. North up, so tail to the S and SW.Nucleus is dot at upper left of inner coma, other star in inner coma at right is a field star

The partial solar eclipse of October 23, 2014 as seen from Jasper, Alberta, at a public event in Centennial Park as part of the annual Dark Sky Festival. This is a single-exposure image showing the scene near mid-eclipse with telescopes from volunteers from the Royal Astronomical Society of Canada, and the mostly clear skies above with the crescent Sun visible through the handheld polymer solar filter.