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  2. Pixel density - Wikipedia

    en.wikipedia.org/wiki/Pixel_density

    Pixels per inch (or pixels per centimetre) describes the detail of an image file when the print size is known. For example, a 100×100 pixel image printed in a 2 inch square has a resolution of 50 pixels per inch. Used this way, the measurement is meaningful when printing an image.

  3. Comparison of high-definition smartphone displays - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_high...

    The following is a comparison of high-definition smartphone displays, containing information about their specific screen technology, resolution, size and pixel density.It is divided into three categories, containing smartphones with 720p, 1080p and 1440p displays.

  4. Nikon Coolpix 8400 - Wikipedia

    en.wikipedia.org/wiki/Nikon_Coolpix_8400

    Besides its pixel count, its main selling point is the very wide angle lens, equivalent to a 24 mm in 135 film format. Its only competitor at a comparable price is the Kodak EasyShare P880 , which has longer telephoto lens but is bigger and lacks a swivelling screen.

  5. Orders of magnitude (length) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(length)

    The millimetre (SI symbol: mm) is a unit of length in the metric system equal to 10 −3 metres (⁠ 1 / 1 000 ⁠ m = 0.001 m). To help compare different orders of magnitude, this section lists lengths between 10 −3 m and 10 −2 m (1 mm and 1 cm). 1.0 mm – 1/1,000 of a meter; 1.0 mm – 0.03937 inches or 5/127 (exactly)

  6. Aspect ratio (image) - Wikipedia

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

    1.66:1 or 1. 6:1 = 5:3 = 15:9 Early 35 mm ... The 6 × 6 cm image size was the classic 1:1 format in the recent past. 120 film can still be found and used today ...

  7. Display resolution - Wikipedia

    en.wikipedia.org/wiki/Display_resolution

    The term display resolution is usually used to mean pixel dimensions, the maximum number of pixels in each dimension (e.g. 1920 × 1080), which does not tell anything about the pixel density of the display on which the image is actually formed: resolution properly refers to the pixel density, the number of pixels per unit distance or area, not ...

  8. List of tablet PC dimensions and case sizes - Wikipedia

    en.wikipedia.org/wiki/List_of_tablet_PC...

    Tablet cases sizes Tablet PC Height Width Depth Screen Case size Acer Iconia Tab A500 [1]: 10.2 in (260 mm) 7 in (180 mm) 0.52 in (13 mm) 10.1 in (260 mm)

  9. Retina display - Wikipedia

    en.wikipedia.org/wiki/Retina_display

    Pixel density Pixel size (μm) Angular pixel density (px/°; at typ. distance) typ. viewing distance Total pixels ppi px/cm Apple Watch 38mm Retina display 1.34 in (34 mm) 272×340 4:5 326 128 77.9 56.9 10 in (25 cm) 92,480 Apple Watch 42mm (Series 0, 1, 2 and 3) 1.53 in (39 mm) 312×390 121,680 Apple Watch 40mm 1.55 in (39 mm) 324×394 330