A7r 24-70 at 70mm vs EM1 12-40 at 40mm (80mm EFL)

Started Mar 6, 2014 | Discussions thread
Camley Senior Member • Posts: 1,764
Re: Resize the A7/r to 16 MP to see how it compares...

I am not going further with this LTZ470 except to say that for a fair and accurate comparison you must normalize a higher resolution sensor to have the same print size as a lower resolution sensor. That is how you would compare the images if you looked at two prints from the same distance and chose which has the better image quality.

In other words, you can't directly compare two image crops if one would print 12" x 8" and the other 6" x 4" because of differences in sensor MP.

If you don't normalize the print sizes you are unfairly penalizing the image from the larger sensor.

If you are normalising the print sizes then that is fine.

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