Re: Presentation

[Russ Rosener <rrosener@xxxxxxxxxx>]

Belén Martínez wrote:

> Hello list:
>
> My name is Belén Martínez, I live in Córdoba, Argentina, and I study
> photography at the School of Arts Lino Spilimbergo in my city. I' m new at
> infrared, I read the list since last year, but I can't read it always.
> I have a Nikon F100 and 24-120mm. f/3,5-5,6 - 70-300mm. f/4-5,6 lenses.
> What about focusing? There are any mark for infrared ... like my old camera
> ( a Canon T-60, with a 28-80 Tokina lens). What a pity! I don't have these
> camera anymore...
> Another question: Has the HIE rolls DX code?
> Answers, suggestions, please.
> Regards
> Belén
>

Kodak Infrared film has no DX coding. The film ISO depends upon the red filter
used, and the developer.
Generally people set the ISO on the camera between 200 and 400 for good
results in Kodak D-76 developer and a #25 red filter.

If you stop the lens down to f/8 or more, you do not have to worry about
focus. If you are using a telephoto lens, this may not be true. Your Nikon can
use older, manual focus AI or AIS lenses. Get an old Nikon wide angle lens
which has the IR focusing mark and you will be set. Make sure it is an AI or
AIS type lens so it can work with the light meter of the F-100.
Is it summer or winter in Argentina now? In winter Kodak Infrared film may
require ASA of 100.

Good luck!

Russ Rosener

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