MX shutter problem?

P. J. Alling webstertwentysix at
Sun Jul 25 14:37:32 EDT 2010

A CLA might clear up the problems.

On 7/25/2010 1:11 PM, Toralf Lund wrote:
> Folks,
> I'm having a slight issue with an old, beat-up MX I bought for next to 
> nothing a year or two ago (not sure if I told anyone here.) On the 
> last film I shot with it, a large number of frames only came out as 
> partially exposed. To show you what I'm talking about, I went ahead 
> and scanned the entire film (well, I probably wanted digital versions 
> of some pictures anyway.) Here is an "index file" produced during this 
> process:
> All images have the "natural" orientation of the film, and they are 
> ordered according to frame no, and split into the same "strips" as the 
> film itself.
> As you can see, there is often data missing, always on the same side, 
> but the amount varies. There are also a few "blanks", but this might 
> of course be caused by something else entirely. I think I saw 
> something like this earlier, too, but then there were only 2 or 3 
> incidents throughout the film.
> So, what do you reckon? Is the shutter broken, or what? If it is, 
> would it be worth fixing? Also, if the curtains stick or whatever, why 
> not all the time? (Different exposure times?) Or alternatively, is 
> there something else that might cause something like this? I mean, 
> besides actually blocking parts of the lens, as surely I would have 
> noticed that in the viewfinder.
> - Toralf

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