Archived posting to the Leica Users Group, 1999/03/07

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Subject: Re: [Leica] M6 scratching film
From: COLBYG@ULV.EDU
Date: Sun, 07 Mar 1999 21:22:37 -0800 (PST)

...the story doesn't end. 

	Tonight, as I reviewed the negatives from my own comparison of D3200
and P3200 I discovered horizontal scratches on both films!
	Unlike earlier scratches, these are visible with the loupe. The
scratches are most likely caused in the camera; I hand-processed the film in
small tanks...the lines are parallel to the film edge. I'm pretty sure the
scratches are on the emulsion side. There are often two or three individual
scratches, running parallel to each other, showing up for a distance, then not.
	I had cleaned the camera thoroughly, prior to exposure, including
cleaning the pressure plate with alcohol. 
	The problem seems to be worse with the Delta 3200 than the P3200, but
they're so slight and difficult to spot with my cheap loupt that I've not 
scoured the whole length of the rolls to be sure.
	I'm certain the scratches would show up in scans; I've seen the same 
thing before.

	Both my M6 bodies appear scratch film, which is very discouraging for a
Leica newbie who switched loyalty after more than 20 years of Nikons (and no
film scratches).

	Someone a while back suggested polishing some of the camera film guides
with a mild abrasive. What should I look for in a Leica that's on the emulsion
side?

	Thanks for listening/reading. Sometimes it helps just to complain.

- -Gary
 Gary S. Colby
 colbyg@ulv.edu