[Leica] Re: M6's scratching film - possible solution

[Jim Brick <jimbrick@photoaccess.com>]

Gary,

What kind of slide film are you using? And where is the scratch? 

Some Fuji slide film (Velvia for sure) is curled immediately after
processing and drying. It requires an hour or two of "hang" time, at room
temp, to uncurl. The curl is from side to side. If your lab mounts the
slides too soon (while still warm) after processing, some slide mounting
machines will scratch the film, within the frame, along one edge near the
sprocket holes. It within the frame so you will see it when looking at the
slide through a loupe. After finally solving this scratch problem, I used
to have to put this special notice on my Fujichrome processing "please let
the film hang for an hour or so, before mounting, to reduce curl", which
solved the problem.

Jim


At 06:34 AM 1/20/99 -0700, you wrote:
>Greetings,
>
>	I've got two recent vintage M6's, one of which may be scratching film.
>Do you have experience with testing and detection, and subsequent repair? I
>understand that it's possible to replace the pressure plate back, to
polish the
>pressure plate with a chamois.
>	I've tested each body with factory-load Tri-X and wasn't able to detect
>the scratching, but I've noticed it in some of my slides.
>	With the Tri-X loaded there seems to be considerable resistance to
>rewinding; I've been a little concerned about that.
>	In advance, I thank you for your advice.
>
>-Gary S. Colby