garyvot Offline Upload & Sell: On
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exdeejjjaaaa wrote:
don't even try RF16/2.8 = https://www.opticallimits.com/canon_eos_ff/1136-canonrf16f28?start=1
https://i.postimg.cc/SRtRm7K3/16mm-raw-distortion.png
This is an intentional aspect of the lens design. It allows it to be smaller, faster, and less costly than an f/2.8 lens at this focal length would otherwise be.
When this lens is mounted on a camera, it is impossible to defeat the digital corrections. Newer RAW software also applies corrections automatically, so most users will never see this.
The optical performance of this lens, like several others in Canon's lineup, should only be evaluated *after* software corrections are applied.
My experience with both the 16 f/2.8 and the 24 f/1.8 is that Canon corrects to a smaller field of view compared to other software such as DXO PureRAW. So if reviewers are using third party software to evaluate the corner performance of these lenses, they may be judging a part of the image circle that Canon did not intend to be visible. Obviously, this can skew the evaluation.
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