5D IV Crop Factor for 4K

Started Aug 26, 2016 | Discussions thread
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Photato
Photato Senior Member • Posts: 2,820
5D IV Crop Factor for 4K
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Ok, I've seen a lot of confusion and mistakes about the crop factor of this camera for videos, even among professional reviews.

So lets get this straight.

If you want a number to calculate equivalent field of view the standard is to measure it by the diagonal. Sensor diagonal / Crop diagonal.

And those numbers are:

For 16:9 ---> 1.832955061280073

For 17:9 ---> 1.743899805657525

Thus, for a UHD field of view equivalent to 28mm you would need a 15mm lens.

(28mm / 1.84) = 15mm

CAD Drawing

 Photato's gear list:Photato's gear list
Panasonic LX100 Canon EOS M Canon EOS M6 Canon EOS M6 II Canon EF 50mm F1.8 II +13 more
Canon EOS 5D Mark IV
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