stonearabiapix Posted December 24, 2009 Share #1 Posted December 24, 2009 Advertisement (gone after registration) Hello all, and happy holiday's Does anyone have any experience with using the (135 Elmarit 2.8 w/goggles), lens on an M8? I am having an issue with severe back-focus when using this lens. I focus on my subject and the lens will be sharp 6-8 inches beyond. at infinity its hard to say where the focus went! Anyone with any experience with the same? Any ideas? any way to fix? any help would be appreciated. Tim Link to post Share on other sites More sharing options...
Advertisement Posted December 24, 2009 Posted December 24, 2009 Hi stonearabiapix, Take a look here 135 2.8 w/goggles focus issue. I'm sure you'll find what you were looking for!
luigi bertolotti Posted December 24, 2009 Share #2 Posted December 24, 2009 Me too had the same issue... even if don't care too much of, having a Tele Elmar 135 which works perfectly... the Tele Elmarit 2,8 has a RF cam-adjusting screw which is rather easy to operate and this is surely a way to tune the focus... I did and verified that with much patience and attention one can probably adjust focusing by himself... in the forum I saw perfect focused shots made with it, even if I prefer the TE f4. Link to post Share on other sites More sharing options...
stonearabiapix Posted December 24, 2009 Author Share #3 Posted December 24, 2009 Thank you, I've Google'd," Elmarit 135 2,8 w/goggles RF cam-adjusting screw", but no help at all. Can you? do you have a site that can help with this? Link to post Share on other sites More sharing options...
rickp13 Posted December 24, 2009 Share #4 Posted December 24, 2009 mine had also had a focusing problem when i bought it. i sent it to will van manen in the netherlands for adjustment and milling the slots for 6-bit coding. it worked perfectly after that = nice lens on the m8. good luck rick Link to post Share on other sites More sharing options...
stonearabiapix Posted December 24, 2009 Author Share #5 Posted December 24, 2009 Good to hear I'm not alone, and others have found solutions. I've also heard that I might be able to "shim" the lens, buy taking the lens head off and adding shims to the rear of the lens barrel. Anybody do this? Link to post Share on other sites More sharing options...
rickp13 Posted December 24, 2009 Share #6 Posted December 24, 2009 i'm pretty sure my focusing issue was fixed "in the goggles", not out on the lens barrel, but the experts will be able to give you details. good luck rick Link to post Share on other sites More sharing options...
jaapv Posted December 25, 2009 Share #7 Posted December 25, 2009 Advertisement (gone after registration) Good to hear I'm not alone, and others have found solutions. I've also heard that I might be able to "shim" the lens, buy taking the lens head off and adding shims to the rear of the lens barrel. Anybody do this? You need a collimator to do this - plus a selection of shims. Link to post Share on other sites More sharing options...
stonearabiapix Posted December 25, 2009 Author Share #8 Posted December 25, 2009 Don't you think I'll be able to tell if I'm achieving focus by visual inspection of the image. Rather than having to use a collimator? Link to post Share on other sites More sharing options...
luigi bertolotti Posted December 25, 2009 Share #9 Posted December 25, 2009 Good to hear I'm not alone, and others have found solutions. I've also heard that I might be able to "shim" the lens, buy taking the lens head off and adding shims to the rear of the lens barrel. Anybody do this? I did a very similar work on an old Summicron 90 screw mount, indeed in a very rough way : attached two thin SCOTCH stripes onto the cam surface, refiling with a razor blade... it worked no bad (but, to be clear, is a lens I keep as a collectible, not for using... was just a try of supersimplified do-it-yourself adjustement... ) Link to post Share on other sites More sharing options...
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