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  2. Star trail - Wikipedia

    en.wikipedia.org/wiki/Star_trail

    I take multiple 30-second exposures, then 'stack' them using imaging software, thus producing the longer exposure." [10] [2] Star trail images have also been taken on Mars. [11] The Spirit rover produced them while looking for meteors. [11] Since the camera was limited to 60 second exposures the trails appear as dashed lines. [11]

  3. Path tracing - Wikipedia

    en.wikipedia.org/wiki/Path_tracing

    In 1998, Blue Sky Studios rendered the Academy Award-winning short film Bunny with their proprietary CGI Studio path tracing renderer, featuring soft shadows and indirect illumination effects. Sony Pictures Imageworks ' Monster House was, in 2006, the first animated feature film to be rendered entirely in a path tracer, using the commercial ...

  4. Focus stacking - Wikipedia

    en.wikipedia.org/wiki/Focus_stacking

    The starting point for focus stacking is a series of images captured at different focus distances; in each image different areas of the sample will be in focus.

  5. Astrophotography - Wikipedia

    en.wikipedia.org/wiki/Astrophotography

    Astrophotography, also known as astronomical imaging, is the photography or imaging of astronomical objects, celestial events, or areas of the night sky. The first photograph of an astronomical object (the Moon ) was taken in 1840, but it was not until the late 19th century that advances in technology allowed for detailed stellar photography.

  6. Camera obscura - Wikipedia

    en.wikipedia.org/wiki/Camera_obscura

    A camera obscura (pl. camerae obscurae or camera obscuras; from Latin camera obscūra 'dark chamber') [1] is the natural phenomenon in which the rays of light passing through a small hole into a dark space form an image where they strike a surface, resulting in an inverted (upside down) and reversed (left to right) projection of the view outside.

  7. Baby Donkey's Bedtime 'Wiggling' Routine Has Everyone ... - AOL

    www.aol.com/lifestyle/baby-donkeys-bedtime...

    The donkey's mama was so impressed by him. The little guy was on his way to learning how to roll over! He just wanted to practice his new moves real quick before it was time to go to sleep.

  8. Polarizing filter (photography) - Wikipedia

    en.wikipedia.org/.../Polarizing_filter_(photography)

    Circular polarizer/linear analyzer [1] filtering unpolarized light and then circularly polarizing the result. A polarizing filter or polarising filter (see spelling differences) is a filter that is often placed in front of a camera lens in photography in order to darken skies, manage reflections, or suppress glare from the surface of lakes or the sea.

  9. Stack trace - Wikipedia

    en.wikipedia.org/wiki/Stack_trace

    In computing, a stack trace (also called stack backtrace [1] or stack traceback [2]) is a report of the active stack frames at a certain point in time during the execution of a program. When a program is run, memory is often dynamically allocated in two places: the stack and the heap. Memory is continuously allocated on a stack but not on a ...