Re:Re: Starting point hie film

["Elton N. Kaufmann - Cycloid Fathom Group" <cycloid@xxxxxxxxxxxxxxxxxx>]

Don:
As a starting point, the lens you use (zoom or otherwise) shouldn't matter.
 (By the way, lets use "mm" for millimeters rather than "ml" which is
milliliters and may be more use full in the wet side of the darkroom ;-))
I would warn you, however, that unless your working at small apertures
and/or wide angle and/or with APO lens corrected into the IR, the autofocus
setting may disappoint you (unless your after a soft look).  Try manual
focus using the IR mark on the lens to compare with your auto results, to
see if you care.  (This means focus auto or manual so the scene looks
sharp, then manually move to the IR mark from there.)

You wrote:
>Date: Sat, 15 Nov 97 11:45:54 PST
>From: "Don Campbell" <donc@xxxxxxxxxxx>
>Subject: Starting point hie film
>Could anyone out there give me a starting point for Kodak HIE film.
>I wish to use my Nikon F70 camera that has a 28-80 autofocus lens
>I have a 25a red filter
>Would this combination below work?
>Set lens to 50ml,use autofocus
>F11 times 125sec and bracket 250, 125,50 ISO
>Develop as recommended
>Previously I used a standard 50 ml lens with a red filter ( lost that fil=
>ter) and bracketed 125 and 250 ISO.Got some good results with 125 ISO . =
>I was wondering how a zoom lens would work.
>I have tried looking for FAQ and have not been able to find that yet (rat=
>her new to this internet thing)
>Donc
>donc@xxxxxxxxxxx
>All things are difficult before they are easy.

Then George S. wrote:
>The F11 1/125 sec works out to EI 250, so set your camera accordingly, put
the filter
>over your lens, and meter TTF (through the filter).  Bracket one stop
either way. 
>That's about it.  You'll quickly find out what works and what doesn't for
what you're
>trying to accomplish.
>
George: good advice, but does not translating f11 & 1/125 to EI 250 assume
a "light level" and in our IR case, a ratio of IR to visible.  Is this your
sunny day estimate?

							EltonK

Exhibiting fine-art and editorial photography
Cycloid Fathom Gallery
Elton N. Kaufmann, Chairman
P. O. Box 8129
Downers Grove, Illinois 60517-8129
USA
cycloid@xxxxxxxxxxxxxxxxxx
http://www.cycloid-fathom.com/gallery/
ftp.cycloid-fathom.com/group/uploads/

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End of Infrared-Digest V0 #300
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