Nojus Drasutis Posted December 26, 2019 Share Posted December 26, 2019 Hi, I read somewhere in this forum about Zeiss QBM mount still camera lenses converted to PL mount and also saw few simmilar items on ebay. Did anyone from this forum tried to do it? I'm trying to figure out how to do it myself. Thank you and happy holidays! Link to comment Share on other sites More sharing options...
Stuart Brereton Posted December 27, 2019 Share Posted December 27, 2019 The Rollei QBM Mount has a FFD of 44.6mm, so you run into all the same problems you would have with converting most stills lenses to PL. I haven’t seen the eBay listings, but it is possible that the lenses are small enough to fit inside of a PL mount and therefore can be recessed into the mount to make the FFD work. There are some M42 lenses which can be adapted in the same way, mostly Russian glass. 1 Link to comment Share on other sites More sharing options...
Steve Cutler Posted December 29, 2021 Share Posted December 29, 2021 Does anyone know any more about this? Are there any vendors who adapt Rollei lenses to PL? Link to comment Share on other sites More sharing options...
Nojus Drasutis Posted December 29, 2021 Author Share Posted December 29, 2021 (edited) Hi, I talked with this guy who sells these DIY converted lenses, he said he could do the conversion, altho I never tested lenses that he converted. https://www.ebay.co.uk/itm/165241256518?hash=item2679257a46:g:xuAAAOSwoNVhvwxx Bought 35mm and 135mm f2.8 in qbm mount, disassembled them, but never took enough time to figure out how to do the conversion myself. As far as the flange distance goes, yes, its too short, but the lenses are quite small. They fit inside pl mount, if you file enough. Also, looking to the photos of that qbm pl conversion in ebay, you could notice he does something to the aperture control ring. Edited December 29, 2021 by Nojus Drasutis i add more info Link to comment Share on other sites More sharing options...
Nojus Drasutis Posted December 29, 2021 Author Share Posted December 29, 2021 (edited) I'm attaching the photos from the ebay listing. User: ussr_photo_goods Edited December 29, 2021 by Nojus Drasutis added some details Link to comment Share on other sites More sharing options...
Travis Shannon Posted December 30, 2021 Share Posted December 30, 2021 Fwiw I bought a pl mounted Helios 44 from the same seller and the aperture ring is similarly close but it does indeed work although there is a bit of finagling when mounting it. Link to comment Share on other sites More sharing options...
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