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A space selfie is a selfie (self-portrait photograph typically posted on social media sites [2]) that is taken in outer space. This include selfies taken by astronauts [ 3 ] (also known as astronaut selfies [ 4 ] ), machines [ 5 ] (also known as space robot selfies [ 6 ] and rover selfies [ 7 ] ) and by indirect methods.
The Blue Marble is a photograph of Earth taken on December 7, 1972, by either Ron Evans or Harrison Schmitt aboard the Apollo 17 spacecraft on its way to the Moon.Viewed from around 29,400 km (18,300 mi) from Earth's surface, [1] a cropped and rotated version has become one of the most reproduced images in history.
Bi-telecentric lens with 208 mm diameter front element and a C-mount camera interface 3D render simulating a photo taken with a fixed focal length and a telecentric lens. A telecentric lens is a special optical lens (often an objective lens or a camera lens) that has its entrance or exit pupil, or both, at infinity.
Pale Blue Dot is a photograph of Earth taken on February 14, 1990, by the Voyager 1 space probe from an unprecedented distance of approximately 6 billion kilometers (3.7 billion miles, 40.5 AU), as part of that day's Family Portrait series of images of the Solar System.
The Gateway to Astronaut Photography of Earth has been collecting and categorizing photos taken by astronauts. They see Earth from an altitude of about 250 miles as the station travels at a speed ...
Space Shuttle astronaut Kenneth Cockrell with a digital Nikon NASA F4 HERCULES Reflected in the visor is the camera used for this astronaut "selfie" Astronaut Christopher Cassidy holding a camera while on EVA (Space-walk) NASA has operated several cameras on spacecraft over the course of its history.
The depth of field, and thus hyperfocal distance, changes with the focal length as well as the f-stop. This lens is set to the hyperfocal distance for f /32 at a focal length of 100 mm. In optics and photography, hyperfocal distance is a distance from a lens beyond which all objects can be brought into an "acceptable" focus.
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