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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. Aspect ratio (image) - Wikipedia

    en.wikipedia.org/wiki/Aspect_ratio_(image)

    Common aspect ratios used in film and display images. The common film aspect ratios used in cinemas are 1.85:1 and 2.39:1. [1] Two common videographic aspect ratios are 4:3 (1. 3:1), [a] the universal video format of the 20th century, and 16:9 (1. 7:1), universal for high-definition television and European digital television.

  4. List of photographic film formats - Wikipedia

    en.wikipedia.org/wiki/List_of_photographic_film...

    2.4 inch (60.96 mm) stock, unperforated, paper-backed 121 roll film 1902 1941 1 + 5 ⁄ 8 × 2 + 1 ⁄ 2 in 122 roll film 1903 1971 3 + 1 ⁄ 4 × 5 + 1 ⁄ 2 in 82.55 × 139.7 mm 6 or 10 Postcard format 123 roll film 1904 1949 4 × 5 in 101.6 × 127 mm 124 roll film 1905 1961 3 + 1 ⁄ 4 × 4 + 1 ⁄ 4 in 82.55 × 107.95 mm

  5. 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

  6. Image resolution - Wikipedia

    en.wikipedia.org/wiki/Image_resolution

    The image would be a very low quality image (72ppi) if printed at about 28.5 inches wide, but a very good quality (300ppi) image if printed at about 7 inches wide. The number of photodiodes in a color digital camera image sensor is often a multiple of the number of pixels in the image it produces, because information from an array of color ...

  7. Image sensor format - Wikipedia

    en.wikipedia.org/wiki/Image_sensor_format

    The development of the 'Tessar' lens is discussed by Nasse, [11] and shows its transformation from an f /6.3 lens for plate cameras using the original three-group configuration through to an f /2.8 5.2 mm four-element optic with eight extremely aspheric surfaces, economically manufacturable because of its small size. Its performance is 'better ...

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