[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: Positive Steadifilm
On Jun 1, 17:35, Craig Nichols wrote:
} Subject: Positive Steadifilm
> I'm sorry to hear about your marathon Steadifilm session (with
> Positive no less!). If I remeber correctly from my film lab R&D
> days) at Deluxe Labs, negative film uses a BH perf (having rounded corners),
> and positive uses KS (which has square corners). The BH perf is
Thanks for the information Craig. As I noted in my original post, the
print I received was registered, with Bell & Howell perforations. If
the KS perf was designed for the reason you outline, which sounds
reasonable, then I suppose the process of striking a registered print
must be quite different, because that print can (and by definition does?)
have B&H perfs.
Bill Topazio chimed in with some verification:
> Yup, it's apparently true, for the very reason you note- the contact
> printing process wraps 2 pieces of film around the cylindrical printer
> head, so the perfs need to be at a slightly different pitch. This has
> always confounded the mechanical pin-reg mechanisms.
And he added:
> BTW, all things being equal, we have found that a good ultrasonic
> cleaning prior to pinning tends to restore the original dimensional
> qualities of the film and therefore improves overall performance on
> the pins. But I don;t know if this amounts to a hill of beans when
> dealing with print.
Maybe sometime I'll get a chance to try that, it sounds worthwhile.
> Anyway, I would tend to guess that a RTS gate would be the most
> efficient way to complete this kind of transfer with minimal hair
> loss. =;-)
As Craig Nichols also noted. I'd like to hear more about the
experiences of those using RTS/Metaspeed+ systems: specifically, on
what jobs would you *not* use RTS/M+, and use a pin method instead?
Rob Lingelbach KB6CUN | 2660 Hollyridge Dr LA CA 90068 213 464 6266 (voice)
rob at xyzoom.alegria.com | "I care not much for a man's religion whose dog or
rob at sun.alegria.com | cat are not the better for it." --Abraham Lincoln