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What aspect ratios do Pentax users like?

Started Oct 5, 2020 | Discussions thread
altis Senior Member • Posts: 1,109
Re: Square (1:1) - see link

Mark Ransom wrote:

altis wrote:

Shoot 1:1 to make best use of the image circle from the lens and then crop to taste.

Simples!

"Best use of the image circle" only applies if you're not going to crop later. For example, an APS-C sensor is 23.5x15.6mm, but a square with the same diagonal is 19.9x19.9mm. If you cropped that square you'd only end up with 19.9x13.3mm.

So, make the sensor 23.5 x 23.5. Then you can crop to 23.5 x 15.6 or 15.6 x 23.5 or even 19.9 x 19.9.

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