marban Posted November 20, 2009 Share #1 Posted November 20, 2009 Advertisement (gone after registration) Received my upgraded M7 with the optical DX reader from Solms today and now, besides ISO 200, all values are being doubled in the display (ie. 160=>320, 400=800 and so forth). I read about several issues with the DX reader but never saw something like that. Anyone? Link to post Share on other sites More sharing options...
Advertisement Posted November 20, 2009 Posted November 20, 2009 Hi marban, Take a look here M7 optical DX fail. I'm sure you'll find what you were looking for!
andybarton Posted November 20, 2009 Share #2 Posted November 20, 2009 Not heard of that before. Sounds like it needs to go back. Have you tried cleaning the sensors? You've obviously tried alternative film cannisters. Link to post Share on other sites More sharing options...
marban Posted November 20, 2009 Author Share #3 Posted November 20, 2009 yes, from 160 up to 1600 - they all get the double value except for 200. tried cleaning, too. very weird indeed. Link to post Share on other sites More sharing options...
aesop Posted November 20, 2009 Share #4 Posted November 20, 2009 Received my upgraded M7 with the optical DX reader from Solms today and now, besides ISO 200, all values are being doubled in the display (ie. 160=>320, 400=800 and so forth). I read about several issues with the DX reader but never saw something like that. Anyone? ...have you got any exposure compensation dialled in? Link to post Share on other sites More sharing options...
marban Posted November 20, 2009 Author Share #5 Posted November 20, 2009 ...have you got any exposure compensation dialled in? no; double checked and rotated the dial a couple of times. i suppose one sensor of the reader might be defunct, which could be exactly the one you don't need for the 200 setting as this is the only correct one. Link to post Share on other sites More sharing options...
biglouis Posted November 20, 2009 Share #6 Posted November 20, 2009 Sorry to hear about your problem. Can I ask a tangential question, which is how do you clean the DX sensors and where are they? I only ask because the DX sensor in my M7 sometimes appears to read the film speed. LouisB Link to post Share on other sites More sharing options...
marban Posted November 20, 2009 Author Share #7 Posted November 20, 2009 Advertisement (gone after registration) in guess in terms of the optical version, the only pins are the three connectors on the film plate Link to post Share on other sites More sharing options...
underground Posted November 21, 2009 Share #8 Posted November 21, 2009 Sorry to hear about your problem. Can I ask a tangential question, which is how do you clean the DX sensors and where are they? I only ask because the DX sensor in my M7 sometimes appears to read the film speed. LouisB I go over my optic DX sensors with a dry Q-tip every once and a while to clear any dust that may collect, but they always look pretty clean beforehand. I noticed Where the film plate meets the body there are three flat copper terminals. On the film plate itself there are three male terminals that are spring loaded. On my M7 those terminals on the body are pretty well dented in (I'm assuming yours too), so Im thinking if one or more of the terminals on your film plate looses some of it's spring combined with dent in the terminal on the body may cause intermittence. Just a thought. good luck. Link to post Share on other sites More sharing options...
underground Posted November 21, 2009 Share #9 Posted November 21, 2009 Oh! Marban I think Andy is right about this. Im sorry to hear about your problem. Link to post Share on other sites More sharing options...
marban Posted November 21, 2009 Author Share #10 Posted November 21, 2009 found the solution on the german board - as assumed, if one sensor breaks you'll get a new combo of values - as in my case, the 2nd sensor is not needed for ISO 200. http://www.l-camera-forum.com/leica-forum/analog-forum/106755-m7-opt-dx-fehler.html#post1127720 thanks everyone Link to post Share on other sites More sharing options...
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