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Flektogon 20mm f2.8 thread size question
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PostPosted: Thu Dec 07, 2017 1:21 pm    Post subject: Flektogon 20mm f2.8 thread size question Reply with quote

I tried two 67mm UV filters on my Flektogon 20mm f2.8 and none screw despite the Flektogon should be 67mm, in fact they're a bit loose when trying them inside so I reckon it may be one or two mm bigger the screw. How is this possible? thought all Flektogons were the same size. Any ideas?



Thanks


PostPosted: Thu Dec 07, 2017 3:18 pm    Post subject: Reply with quote

My (not Flek) 20mm needs 72mm hood to avoid vignette.

Hope someone here can help!


PostPosted: Sat Dec 09, 2017 12:25 am    Post subject: Reply with quote

My 20 2.8 Flektogon came with a 67mm Tamron UV filter which fits perfectly, but it also causes a bit of a vignette at the edges, so I just removed it.