----- Original Message -----
From: "Gautam Sarup"
Subject: RE: Pentax 67
From: William Robb
...
6x7s that have run a lot of T-max
film tend to
show irregular frame spacing,
Why especially T-max?
Kodak may have fixed the problem, I would be very surprised if they hadn't,
actually. They may not have either.
When T-Max 120 was first marketed, they used an Estar Thick Base type of
substrate. It, combined with the paper backing made for a very hard drag on
the advance mechanism.
There was a Mamiya RB67 owners group in the USA that was threatening to sue
Kodak over the damage done to their cameras.
This was long ago, but a beaten up old bargain grade 6x7 is probably old
enough to have seen those days. My 6x7 still looks pretty spiffy.
Kodak was technically in the good, since the base was just within ISO
standard for thickness, I believe it was the unusual rigidity of the base
that was causing the grief.
It wasn't so bad in the 6x7, because it doesn't contort the film as much in
transport. I blew out my 6x7 in the first 50 rolls of T-Max I shot. I got it
fixed and haven't used that film line since in my 6x7.
William Robb
