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M7 problem - I think


kivis

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Whenever I turn on my M7 it shows 1600 ISO whether it is DX or manually set. With 400 ISO film in DX it actually meters like a 1600 ISO. Not good. When I set ISO manually at 400 ISO it meters correctly even though it says 1600 when I turn it on. Do I have a repair problem? What gives?

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Earlier M7's had gold plated metal contacts for the DX sensors; at some point Leica switched them out with optical sensors. If you look inside and see that you have the gold plated contacts, try rubbing them off with a soft cloth and some rubbing alcohol- there could be some oxidation built up that is causing a false DX reading of 1600. Just a suggestion, although I don't know if this would also cause it to show a reading of 1600 even when it is manually set.

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Hmm... should have the optical sensors then; I believe they changed over to them back in 2007 or so. You should be able to tell by taking off the bottom plate of the camera and looking in the area where the film cassette goes. You should be able to see the contacts in the there (they will be opposite the back of the camera); you can tell if they are the spring loaded metal ones or the optical ones.

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Akiva -- If your M7 already has the optical reader then the source of the problem probably lies elsewhere. My 2006 M7 didn't have the optical reader and developed a number of similar problems. Even when the old DX reader was replaced with the optical variant problems continued. The problem turned out to be a malfunctioning circuit board in addition to the well documented DX reader problems.

 

It sounds as if you may havea similar problem.

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+1. I never had this problem with either of my M7s and one had the mechanical reader and I upgraded the other to the optical version. Sounds like it's something else as Alun is suggesting.

Now it has stopped and works fine. I used a photo cloth and cleaned the sensors, that might have helped or maybe I just put the film in more snugly. Now I still have a ongoing shutter button problem. see my new post. Ugh
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Whenever I turn on my M7 it shows 1600 ISO whether it is DX or manually set. With 400 ISO film in DX it actually meters like a 1600 ISO. Not good. When I set ISO manually at 400 ISO it meters correctly even though it says 1600 when I turn it on. Do I have a repair problem? What gives?

 

Mine is still in Germany, Dx code reader is exactly what's wrong with it. Sent to New Jersey over 6 weeks ago, I was informed repairs would be free, This is a 6 year old camera, Just taking forever,

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