Re: Which 4x5 film holders are ifrared safe?

["Don Bryant" <dsbryant@xxxxxxxxxxxxxxxx>]

>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.

So you mean that you do not remove the dark slide completely. I do so I'll
bet that has to be a problem.
I thought since I had IR proof holders that removint the dark slide was
okay.  Obviously it is not.

>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.

I've had a special IR proof bellows made for my Wisner by Wisner but I'll
try the Aluminum tent anyway. This film is just to expensive to keep
screwing around with.

Thanks much,

Don

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