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09-13-2010, 02:03 AM   #1
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MX - B not working properly


I have an MX that I really love, replaced the light seals and mirror dampers when I got it. There seems to be something weird with the B setting though. All speeds works fine and I don't really use B, but anyway... The shutter doesn't close if the film lever isn't completely "closed". I made a short clip to explain it better...


First a couple at 1/30s - nothing wrong here.Then one at B with the lever "closed" - works fine.
Then two with with the lever "open" (not sure what to call it...) - the shutter closes when I push the film lever.

Any ideas what might be wrong? Can I fix it myself?

09-13-2010, 10:12 AM   #2
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Why don't you just make sure the film wind lever is pushed all the way home before pressing the shutter button? As you did in your first example.. Don't know what, if anything is wrong or how you may fix it otherwise.

09-13-2010, 10:30 AM   #3
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Yes, if I use B I might as well make sure the lever is pushed all the way. Just makes me a bit nervous to think that something might be broken...
09-13-2010, 11:01 AM   #4
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I think your suspicions are probably justified that something is not quite right. Fortunately, whatever is not in adjustment does not seem to be affecting most camera operations. If you decide to get it fixed, the standard advice on this forum is to send the camera to Eric Hendrickson in Tennessee. He does excellent work with reasonable pricing and free estimates.
Eric Hendrickson,



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