Sounds like you may have put your finger on the problem already. You
could test it by putting the camera in a freezer and seeing if the
rewind button tends to stick down when it is cold. If your temp est is
about right, a good freezer should get about there.
One way to make sure you know it is happening is the same one proposed
every time someone loses a roll by not making sure it is winding
properly. Rewind any slack out and then watch the rewind crank when you
advance the film to make sure it moves - especially when taking those
'once in a lifetime' shots.
The OM-4 series isn't really renowned as a cold weather camera. Big
problem is batteries that don't perform well cold. Many listees who live
where it gets really cold (much colder than -15C) switch to the all
mechanical OM-1 or 3 bodies for the real cold weather stuff. Oly even
made a cold weather adapter that keeps the batteries in one's pocket and
powers the camera through a wire. Very rare item. A lot of the
lubricants dry out and stiffen up with age. Add serious cold and they
may just not work at all, so another thing to consider is a CLA. You
could let the repair person know cold weather will be in the camera's
future. The OM-4Ti 'Crash Test'
<http://brashear.phys.appstate.edu/lhawkins/photo/crash-test.txt> shows
how a new 4Ti performed, but says nothing about how an older one without
CLA will perform in cold.
Moose
Adam Long wrote:
I recently changed films with my OM4ti on top of a mountain in patagonia. <snip>
Anyway when I got the film back there were only 29 shots out of 36, the first 8 or so being
superimposed. <snip> My best guess is the rewind button stuck down for some reason -
maybe thick/sticky lubricant?
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