23mm f2 double standard?

Started 11 months ago | Discussions thread
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lumen64
lumen64 Forum Member • Posts: 66
23mm f2 double standard?
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Why is it that it is an understood "RULE" that all lenses are softer wide open and sharpen up when closed down a full stop or two BUT when the 23mm f2 supposedly exhibits this behavior  it is a problem with the lens.

Please help me understand this seemingly double standard.

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