The 4/3 tele advantage myth

Started Oct 2, 2012 | Discussions thread
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Re: Here's the secret. . . Olympus is twice as good! :-)
In reply to TorsteinH, Oct 5, 2012

TorsteinH wrote:

Anyway, what the original poster do not understand is that errors like Crommatic abberation, I probably misspelled that one so lets call it CA, and other lens errors are magnified when you crop a picture.

How could that be possible? CA does not get "magnified" if you crop the image, assuming you crop to the same size as the cropped sensor has. The CA is a product of the lens, not the sensor. My 70-300 has the same CA on the D300s as on the D800 with 3 times more pixels and 1.5 times larger sensor.

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