Jox Posted April 25, 2022 Share #1 Posted April 25, 2022 Advertisement (gone after registration) Hello, I use an excellent "coded" R APO expender X2 (doubler). The "uncoded" version takes the simpler form of the very old non-APO doubler. I would like to be sure that the 2 versions of the APO expender X2 (coded and non-coded) have exactly the same optical characteristics. Thanks in advance for your information. Link to post Share on other sites More sharing options...
Advertisement Posted April 25, 2022 Posted April 25, 2022 Hi Jox, Take a look here Expender X2 "coded" VS "no-coded". I'm sure you'll find what you were looking for!
davidmknoble Posted April 26, 2022 Share #2 Posted April 26, 2022 @Jox this is the article on the wiki about the extender, and according to it, the “X2 doubler” does appear to be the same optical forumla, but with a ROM or without. https://www.l-camera-forum.com/leica-wiki.en/index.php/APO-EXTENDER-R_2x Link to post Share on other sites More sharing options...
Jox Posted April 26, 2022 Author Share #3 Posted April 26, 2022 Thank you David ! 1 Link to post Share on other sites More sharing options...
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