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      10-29-2017, 04:04 PM   #14
Rikx1M
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Quote:
Originally Posted by Railgun View Post
On an FX lens, that makes no sense. It's the exact same image, you just have less AOV to work with so you lose the edges. You get no more reach doing it that way.

You can crop a proper FX image to a DX size and get exactly the same result with exactly the same resolution. That's all that the camera does when using DX mode on an FX lens...does that work for you.
Yeah, I understand that a DX crop eliminates 20-30 % of image so it appears like you've zoomed in...crop factor of 1.5 on Nikon, 1.6 on Canon. It just makes it easier to have a cropped/zoomed in image without having to spend time photo editing the image.

You can tell also by the fact that a FX/fullframe RAW file from D800 is roughly 41MBs while a DX image is only 18MBs.
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