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lens problem: weird acquired vignetting
On my Tokina 16-28 I noticed a triangular edge vignetting that did not exist before

it's only at 16mm, already visible in the EVF and disappears when zooming

What do you think is the problem??

guy at repairs says he has never seen something similar and is reluctant to open the lens, anybody has an idea what's the problem ?

[Image: attachment.php?aid=131]

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lens problem: weird acquired vignetting - by toni-a - 03-13-2021, 03:35 AM

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