Re: Shooting infra-red in your pinhole

Infrared in a pinhole is no different from infrared in a lensed camera. You need to know
your hole's f-stop, and calculate based on the ASA of the film. Generally, your
exposures will need to be bracketed, since a normal meter doesn't measure infrared.
Also, because it's pinhole, they are going to be LONG. Finally, yes, it generally is wise
to use a #29 red or a wratten infrared filter, or the IR effect will not be very pronounced.
These will require additional exposure compensation, yes. Specifics depend on the film
you use.

For general IR information, I would suggest Laurie White's "Infrared Photography
Handbook". Be aware that she focuses primarily on Kodak HIE. She doesn't like
Konica. In my edition, there's no mention of Maco, either, but it either hadn't come out
yet, or was not yet readily available in the US. Her discussions sometimes are so biased
that you might think you're reading an official Kodak promo piece. But the technical info
is invaluable, and her methodology is sound.

mike

On 21 Mar 2005 at 22:11, odusseus wrote:

Date sent: Mon, 21 Mar 2005 22:11:55 +0000
From: odusseus <polutropos@gmail.com>
To: pinhole-discussion@spitbite.org
Subject: [pinhole-discussion] Shooting infra-red in your pinhole
Send reply to: pinhole-discussion@spitbite.org

> Has anyone tried this?
>
> I'm wondering if there is anything inparticular to consider. For
> instance, are there different rules for calculating reciprocity
> failure? Would I need to attach a filter in front of pinhole?
>
> I'm shooting 120 format. Is there any 120 film partial to decent
> pinhole results?
>
> Any advice?
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Received on Mon Mar 21 16:08:10 2005