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  2. List of lenses for Hasselblad cameras - Wikipedia

    en.wikipedia.org/wiki/List_of_lenses_for...

    The X system uses a digital sensor which measures 43.8×32.9 mm (1.72×1.30 in), [111] larger than the 36×24 mm (1.42×0.94 in) "full-frame" sensors based on 135 film. This means the crop factor for X system lenses (based on diagonal angle of view) compared to "full-frame" 135 is 0.79; for example, a X system lens with a focal length of 65 mm ...

  3. Orders of magnitude (length) - Wikipedia

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

    13 cm = 1.3 dm – body length of a Goliath birdeater; 15 cm = 1.5 dm – approximate size of largest beetle species; 19 cm = 1.9 dm – length of a banana; 26.3 cm = 2.6 dm – length of average male human foot; 29.98 cm = 2.998 dm – distance light in vacuum travels in one nanosecond; 30 cm = 3.0 dm – maximum leg length of a Goliath birdeater

  4. French catheter scale - Wikipedia

    en.wikipedia.org/wiki/French_catheter_scale

    The French scale, also known as the French gauge or Charrière system, is a widely used measurement system for the size of catheters.It is commonly abbreviated as Fr but may also be abbreviated as Fg, FR or F, and less frequently as CH or Ch (referencing its inventor, Charrière).

  5. Fujifilm X-mount - Wikipedia

    en.wikipedia.org/wiki/Fujifilm_X-mount

    Fujinon XC 15-45mm f/3.5-5.6 OIS PZ: This is a lightweight, collapsible, consumer-grade power zoom lens with a short 13 cm close focusing distance. It is the kit lens for the X-A5 and X-T100, as well as their respective successors, the X-A7 and the X-T200.

  6. List of disk drive form factors - Wikipedia

    en.wikipedia.org/wiki/List_of_disk_drive_form...

    5.75 in × 3.25 in × 8 in (146.1 mm × 82.55 mm × 203 mm). This smaller form factor, first used in an HDD by Seagate in 1980, was the same size as full-height 5 + 1 ⁄ 4-inch-diameter (130 mm) FDD, 3.25-inches high.

  7. Chinese units of measurement - Wikipedia

    en.wikipedia.org/wiki/Chinese_units_of_measurement

    3 + 1 ⁄ 3 cm 1.312 in Chinese inch chǐ: 市尺: 1 33 + 1 ⁄ 3 cm 13.12 in Chinese foot zhàng: 市丈: 10 3 + 1 ⁄ 3 m 3.645 yd Chinese yard yǐn: 引: 100 33 + 1 ⁄ 3 m 36.45 yd Chinese chain lǐ: 市里: 1500 500 m 546.8 yd Chinese mile, this li is not the small li above, which has a different character and tone

  8. Tog (unit) - Wikipedia

    en.wikipedia.org/wiki/Tog_(unit)

    The basic unit of insulation coefficient is the R SI, (1 m 2 ⋅K/W). 1 tog = 0.1 R SI.There is also a US clothing unit, the clo, equivalent to 0.155 R SI or 1.55 tog, described in ASTM D-1518.

  9. Paper size - Wikipedia

    en.wikipedia.org/wiki/Paper_size

    Even today, the default size for posters in Swiss advertisements, F4, is colloquially known as Weltformat, although it measures 895 mm × 1280 mm, i.e. 1 cm less than size XIV. [22] This poster size goes alongside F12 Breitformat 2685 mm × 1280 mm (3 × F4) and F24 Großformat 2685 mm × 2560 mm (2 × 3 × F4), as well as F200 "Cityformat ...