How to compare DX vs FX? Different lenses used

Started Dec 3, 2012 | Discussions thread
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TheronFamily
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How to compare DX vs FX? Different lenses used
Dec 3, 2012

Hi

DPR uses the 85mm lens for FX reviews, and 50mm for DX (75mm FOV)

How to equalise magnification to compare DX vs FX from the original NEF files pls?

As I have it, I would need to reduce eg. D300s to 9.5mp to obtain 85mm magnification, then compare a 9.5mp file to a full res 24mp D600 file.

I did not see any samples in DX mode which would help normalise the difference.

The reasoning behind this would be to see how many MP would need to be cropped away from FX to obtain similar magnification than DX, and then compare the image quality directly at same magnification.

Help.

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 TheronFamily's gear list:TheronFamily's gear list
Sigma 150-500mm F5-6.3 DG OS HSM
Nikon D300S Nikon D600
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