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2. Photo print sizes - Wikipedia

   en.wikipedia.org/wiki/Photo_print_sizes

   The alternative Super series, denoted SnR, nR Plus or nR+, has an aspect ratio of 3∶2 (or as close as possible) and thus provides a better fit for standard 135 film (35 mm) at sizes of 8 inches or above. 5R is twice the size of a 2R print, 6R twice the size of a 4R print and S8R twice the size of 6R. 4D/6D is a newer size for most consumer ...

3. Image sensor format - Wikipedia

   en.wikipedia.org/wiki/Image_sensor_format

   The common 1" outside diameter circular video camera tubes have a rectangular photo sensitive area about 16 mm on the diagonal, so a digital sensor with a 16 mm diagonal size is a 1" video tube equivalent. The name of a 1" digital sensor should more accurately be read as "one inch video camera tube equivalent" sensor.

4. List of image resolutions used in digital cameras - Wikipedia

   en.wikipedia.org/wiki/List_of_image_resolutions...

   The sensor usually has a few extra rows of pixels on all four sides, which explains the sensor resolution of 24.3 MPixels often stated, but no information about the exact image size available.) 6,016

5. Large format - Wikipedia

   en.wikipedia.org/wiki/Large_format

   The most common large format is 4×5 inches (10.2x12.7 cm), which was the size used by cameras like the Graflex Speed Graphic and Crown Graphic, among others. Less common formats include quarter-plate (3.25x4.25 inches (8.3x10.8 cm)), 5×7 inches (12.7x17.8 cm), and 8×10 inches (20×25 cm); the size of many old 1920s Kodak cameras (various versions of Kodak 1, 2, and 3 and Master View cameras ...

6. Pixel aspect ratio - Wikipedia

   en.wikipedia.org/wiki/Pixel_aspect_ratio

   Pixel aspect ratio 1:1 Pixel aspect ratio 2:1. A Pixel aspect ratio (often abbreviated PAR) is a mathematical ratio that describes how the width of a pixel in a digital image compared to the height of that pixel. Most digital imaging systems display an image as a grid of tiny, square pixels.

7. 35 mm equivalent focal length - Wikipedia

   en.wikipedia.org/wiki/35_mm_equivalent_focal_length

   35 mm equivalent focal lengths are calculated by multiplying the actual focal length of the lens by the crop factor of the sensor. Typical crop factors are 1.26× – 1.29× for Canon (1.35× for Sigma "H") APS-H format, 1.5× for Nikon APS-C ("DX") format (also used by Sony, Pentax, Fuji, Samsung and others), 1.6× for Canon APS-C format, 2× for Micro Four Thirds format, 2.7× for 1-inch ...

8. Instax - Wikipedia

   en.wikipedia.org/wiki/Instax

   The formats of Instax film give an image size of 46 mm × 62 mm (1.8 in × 2.4 in) for the Mini, 99 mm × 62 mm (3.9 in × 2.4 in) for the Wide and 62 mm × 62 mm (2.4 in × 2.4 in) for the Square. The Instax colour film is available in Mini, Wide, and Square formats and the black and white Instax Monochrome is available in Mini and Wide formats.

9. Panoramic photography - Wikipedia

   en.wikipedia.org/wiki/Panoramic_photography

   Typically, these cameras capture a field of view between 110° and 140° and an aspect ratio of 2:1 to 4:1. The images produced occupy between 1.5 and 3 times as much space on the negative as the standard 24 mm x 36 mm 35 mm frame. Cameras of this type include the Widelux, Noblex, and the Horizon. These have a negative size of approximately ...