Re: Which 4x5 film holders are ifrared safe?

[Ken Sinclair <photo1@xxxxxxxxxxxxxxx>]

Don,

> I've noticed that I'm
>getting some fogging from the dark slide opening.
>Does anyone know if there are specific brands of film holders that are
>completely safe or
(snip)

I have Lisco and Fidelity holders.... some old, some relatively new, and
some Riteway and Linhof some 25+ years young. The Fidelity have 8 dots on
the slide-pull and 5 on the film holder itself. The old Riteway have 5
dimples just below the "wire" pull tab.

I have never had any problems with "leakage" that I may attribute to any
filmholder (based on the number of dots) other than that acquired by
removing the slide and leaving it out during exposure. I will replace the
slide without turning it round (to indicate "exposed") but I will make sure
it is locked. I then take a small piece of masking tape and apply it to the
holder as a "seal" to indicate that is has been exposed.

In my bag, I carry around a piece of alumin(i)um foil that I "tent" over
the film holder and most of the bellows to protect against the chance of IR
radiation other than that coming in through the lens. I place it in
position before inserting the film holder and remove it when finished. My
old Linhof seems to have a very thin leather 'veneer' and, while I have not
had any fogging without my foil tent 'in situ', I prefer using the
protection... especially when you look at the cost of the HSI these days.

  ken

[||/\/\/\/\/\/\||      Ken Sinclair RBP, FBPA
[||                            ||-|   Applied Photographic Services
[||                            ||  |  Lethbridge,
[||                            ||  |  Alberta, Canada,
[||                            ||-|   (403) 381-1654.
[||\/\/\/\/\/\/||      photo1@xxxxxxxxxxxxxxx
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|__________________ |
                O


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