Jemaa el Fna Square, Medina, Marrakesh, Morocco, North Africa, Africa

Shuk HaCarmel market, Tel Aviv, Israel, Middle East

Duart Castle, Isle of Mull, Inner Hebrides, Scotland, United Kingdom, Europe

Wangshi Garden, Suzhou, China, Asia

Crail Tollbooth, Fife Coast, Scotland, United Kingdom, Europe

Caporali Theater, Panicale, Umbria, Italy, Europe

Printemps department store, Paris, France, Europe

The formal gardens of Lanhydrock a country residence dating from the 1600's in Cornwall, UK.

The formal gardens of Lanhydrock a country residence dating from the 1600's in Cornwall, UK.

Classic red Fiat 1600 Open Taxi, Capri, Campania, Italy, Europe

The formal gardens of Lanhydrock a country residence dating from the 1600's in Cornwall, UK.

Tile tableau on old house, Peniche, Centro, Portugal, Europe

Angkor Wat temple, Angkor, Cambodia, Asia

Plitvice Lakes National Park, UNESCO World Heritage Site, Croatia, Europe

Lanhydrock a country residence dating from the 1600's in Cornwall, UK.

Fountain Place Tower, Dallas, Texas, United States of America, North America

Modern glass roofed entrance to the California Academy of Sciences, architect Renzo Piano Building Workshop, San Francisco, California, United States of America, North America

St. Paul's Cathedral, London, England, United Kingdom, Europe

Ilopango lake and volcano, San Salvador, El Salvador, Central America

Adelie penguins (Pygoscelis adeliae) mock-mating (it is not mating season) on the beach on Paulet Island, Antarctic Peninsula. Adelie penguins are truly an ice dependant penguin species.

Keswick and Borrowdale at night from Latrigg, Lake District National Park, Cumbria, 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.

Flower offering,Music tribute to `Virgen de los desamparados´ Fallas festival,San Vicente Martir Street,Valencia,Spain

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.

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.

An aurora display on the night of June 7/8, 2015 from southern Alberta, with an old rustic farm truck as the foreground. This is a frame from a 450-frame time-lapse with the Nikon D750 at ISO 1600 and the Sigma 24mm lens at f/2.8, for 8 seconds each. The foreground is from a stack of 8 images adjacent in time to the sky image stacked in Mean mode for smoothing of noise.

A stack of 25 x 2-minute exposures with Canon 200mm f/2.8 lens at f/4 and at ISO 1600 with Canon 6D.

Alborz Mountain Range

Home consultation elderly people

Sand dunes on a landscape, La Sal Mountains, Red Rock Hills, Arches National Park, Utah, USA

Alfa GTA 1600 Bertone, built 1967

Alte Post, farmland mansion, built before 1600, Drensteinfurt, North Rhine-Westphalia, Germany, Europe

Pedro Calderon de la Barca, 1600-1681, poet, Madrid, Spain, Europe

Japanese Macaques, Japanese Alps, Honshu Island, Japan, Honshu Island, Japan

The Monastery of San Francisco 1534 to 1600 the largest colonial building in Quito on Plaza San Francisco, with shoe shine boys, Quito, Ecuador

Monastery of San Francisco built in 1534 to 1600 the main altar, a spectacular example of Baroque carving, Quito, Ecuador

Hacienda Cusin, one of the best hosterias in Ecuador, on Laguna San Pablo, near Otavalo originally a hacienda dating from the 1600's, Highlands North of Quito, Ecuador

The Monastery of San Francisco 1534 to 1600 the largest colonial building in Quito the main facade on Plaza San Francisco, Old Town area, Quito, Ecuador

Monastery of San Francisco built in 1534 to 1600 the main altar, a spectacular example of Baroque carving, Quito, Ecuador

The Monastery of San Francisco 1534 to 1600 the largest colonial building in Quito on Plaza San Francisco, Old Town area with students, Quito, Ecuador

The Monastery of San Francisco 1534 to 1600 the largest colonial building in Quito the main facade on Plaza San Francisco, Old Town area, Quito, Ecuador

Monastery of San Francisco 1534 to 1600, activity at main doorway on Plaza San Francisco, Quito, Ecuador

The Monastery of San Francisco 1534 to 1600 the largest colonial building in Quito the main facade on Plaza San Francisco, Old Town area, Quito, Ecuador

Monastery of San Francisco 1534 to 1600, the largest colonial building in Quito also Museum of Colonial Art view of main cloister, Quito, Ecuador

Hacienda Cusin, one of the best hosterias in Ecuador, on Laguna San Pablo, near Otavalo originally a hacienda dating from the 1600's, Highlands North of Quito, Ecuador

The Monastery of San Francisco 1534 to 1600 the largest colonial building in Quito the main facade on Plaza San Francisco, Old Town area, Quito, Ecuador

The Monastery of San Francisco 1534 to 1600 the largest colonial building in Quito the main facade on Plaza San Francisco, Old Town area, Quito, Ecuador

USA, Washington DC, The White House, 1600 Pennsylvania Avenue street sign against sky

Close-up of blueberries on market stall