Hannes Famira Posted June 5, 2020 Share Posted June 5, 2020 Hey everybody, I am not in the position to test this myself but the curiosity is killing me: Why will a 2x extender not work with with 2x anamorphic lens? Quote Link to comment Share on other sites More sharing options...
heart0less Posted June 5, 2020 Share Posted June 5, 2020 Well, it would work, actually. Some people on Anamorphic Shooters group report that if you have a high quality telephoto extender, then it can be used with anamorphic adapters and works pretty well. So far, I've heard about Leica APO 2x Extender and Canon FD 2x Telephoto Adapter. Quote Link to comment Share on other sites More sharing options...
Hannes Famira Posted June 7, 2020 Author Share Posted June 7, 2020 I couldn't agree more as the physics prohibiting it escape me. I have read multiple times in forums that it won't work though and even the Duclos website notes that their extension tubes won't work with anamorphic lenses: https://www.ducloslenses.com/collections/adapter/products/exttubekit Quote Link to comment Share on other sites More sharing options...
heart0less Posted June 8, 2020 Share Posted June 8, 2020 Like I said in a different topic: extension tubes won't work, at all, if you have an anamorphic adapter in front. They work the same way, no matter the brand. Having said that, a 2x telephoto extender / aka teleconverter should work with anamorphics. Just remember that it cuts off a pretty lot of light coming in to your sensor. A f/2 lens paired with 2x teleconverter becomes a f/4 piece of glass. It's just the opposite of how speedboosters work. Quote Link to comment Share on other sites More sharing options...
leslie Posted June 8, 2020 Share Posted June 8, 2020 well you are bending light rays quite a bit, its easy to imagine things going pear shaped with all that glass. Still maybe the image may be suitable for you back in the days of film i vaguely remember that 1.4 teleconverters were preferred to 2x with some lenses because of the optical qualities. Of course that may have been applicable to some brands more than others. the only way to know for sure is to do some experiments of course thats all the harder if your in no position to try it yourself Quote Link to comment Share on other sites More sharing options...
heart0less Posted June 8, 2020 Share Posted June 8, 2020 That's for sure! Experiment, experiment and once more: perform experiments! Another thing to take into account is that anamorphic adapters aren't that great at 135mm+ focal lengths. If you use a modern one like ISCO Ultra Star or Schneider Cinelux, you may get away with it since those are super sharp right off the bat and doesn't degrade the image that much. But if you own some Sankor (eg. 16-D) or Kowa (even the highly praised 16-H), then you may be out of your luck and may notice some lose in sharpness, contrast - overall readability. Quote Link to comment Share on other sites More sharing options...
tweak Posted June 9, 2020 Share Posted June 9, 2020 Really you just need to get a longer taking lens, I don't see much point in using a 2x extender unless you have only one actual Cine Anamorphic lens and it's all you own. If you have anamorphic adapter lens simply swap out the taking lens, you can get any focal length you need in great quality for pairing under 100dollars, a 2x extender with good quality is likely to cost far more (and still do a worse job IQ wise). Quote Link to comment Share on other sites More sharing options...
Sebastien Farges Posted June 9, 2020 Share Posted June 9, 2020 I've used a 2X extender vintage komura telemore95 II with my Iscorama Pre-36 1.5x and Pentax-DA 70mm in my last post (just before yours) , from 01:29 to 01:49 and 03:22 to 03:36 Quote Link to comment Share on other sites More sharing options...
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