coded flange for 90mm f2.8 tele-elmarit

[mort linder]

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i purchased a coded flange for my 90mm tele-elmarit ( i think a version ll ) , using it on a leica m8 . i have found that the lens will not focus to infinity .

i checked the flange thickness , and it seems to be the same as the original flange ( .98mm ). everything on the new flange seems the same as the 

original . any ideas on what is going on ?

[luigi bertolotti]

I have not a Tele Elmarit Version II, but my version I (THIS one, to clarify...) 

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Has a flange that it's thinner... I'd say 0,75mm or similar (hand caliper... definitely under 1mm but not 0,5)...  probably a 1mm flange would have the effect of no reaching infinity focusing, indeed.

[mort linder]

thanks for your reply . i measured the original flange , and it seems the same as the coded one i am trying to use . i previously purchased 

a flange from the same seller for my 28mm elmarit , and it works perfectly . i was hoping that someone else might have tried using one 

of these chinese flanges and had the same problem and solved it .