Re: Shooting infra-red in your pinhole

>Has anyone tried this?
>
>I'm wondering if there is anything inparticular to consider. For
>instance, are there different rules for calculating reciprocity
>failure?

Unfortunately, reciprocity information for IR films available in 120
is hard to come by. I just assume that it is similar to Plus-X.

>Would I need to attach a filter in front of pinhole?

Yes. I use a gel filter immediately beind the pinhole. I believe it's
an 87B, but it might be an 89. It's been a while.

>
>I'm shooting 120 format. Is there any 120 film partial to decent
>pinhole results?

I've been using the MACO 820. It has two disadvantages:

1. It's extremely slow: In bright sunlight 6 minutes exposures are
typical. Bring a book. (Note: MACO has announced plans for a faster
IR film, but it's not in production yet).

2. The emulsion is extremely soft and prone to damage. It has to be
handled with extreme care, even when dry.

I haven't actually done that much IR pinhole, but there are a few
examples on my web site.

-- 
-tony
http://www.shapesandshadows.com
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