I shoot quite a bit of T-Max 400 in the 6x7, rating it at 200 and
underdeveloping it a bit. I haven't had any trouble with the transport
mechanism. However, I've only shot around 100 rolls total with this
camera, perhaps 15 of the TMY. TMY does dry exceedingly flat, flatter
than any other I've seen. I find this makes it very nice to work with in
the enlarger. Although a slight curl, like that of Plus X or Delta 3200,
is no problem. I had a horrendous time with that ISO 25 European film
(the name of which escapes me at the moment), because it curled to an
extreme. It's base is also thinner than any other I've ever seen.
Obviously, there's a relationship.
I'll continue shooting TMY because I think it's great film, and if my
transport mechanism fails, I'll just have to have it repaired. One of
these days, I hope to add a 67II body and retire the 6x7 to backup duty.
But that's probably at least a year or two off, at which time there
should be some 67IIs on the used market.
Paul
"Peifer, William [OCDUS]" wrote:
>
> William Robb wrote:
> > One of the nice things about T-Max film is how inherently flat
> > the film stays. I quite like TMY in medium format, where the
> > grain is not an issue.
>
> Hi Bill,
>
> IIRC, the T-Max emulsions are coated on a thicker Estar base web than things
> like, e.g., Tri-X or Tech Pan -- which I suppose would explain the flatness.
> However, I think it was you who pointed out the other day that any older
> Pentax 6x7 will most likely eventually have problems with film transport in
> the camera, leading to closely spaced or overlapping negatives. Given the
> thicker base of T-Max, would you say that continual use of T-Max in a 6x7
> might hasten the eventual need for a film transport repair? Or is the extra
> thickness simply not a problem? What has your experience been with this?
> I'm curious, because I'm wondering if the extra thickness of T-Max is a good
> reason not to use it regularly in my newly acquired 6x7.
>
> I'd of course be interested in anyone else's experiences with this. (Paul
> S., you shoot a lot of T-Max as well, right? Or is that just in 35mm?)
>
> Thanks,
>
> Bill Peifer
> Rochester, NY
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