HIE in a Speed Graphic.

["Charles Jay Pilzer" <cjp@xxxxxxxxxx>]

George,

Thanks for your reply.  I have some spare range finder cams for the Super
Speed Graphic, so I want to try to modify one of them to work with IR.  That
way I can put an opaque filter on the lens, use the rangefinder to focus,
and use the sports finder to compose the exposures.

Them I can use the 4x5 film holders, but I can get some 120 or 220 roll film
for the roll film back to speed up the shooting where required.

If I can find a 70mm back or use a roll film back for a 2 1/4 by 3 /14
miniature graphic, I would dedicate it to IR.  Adjusting the Kalart range
finder should be easy.

cj

> -----Original Message-----
> From: owner-infrared@xxxxx [mailto:owner-infrared@xxxxx]On Behalf Of
> George L Smyth
> Sent: Saturday, August 07, 1999 8:08 AM
> To: infrared@xxxxx
> Subject: RE:
>
>
> > -----Original Message-----
> > From: owner-infrared@xxxxx [mailto:owner-infrared@xxxxx]On Behalf Of
> > Charles Jay Pilzer
> > Sent: Friday, August 06, 1999 11:19 PM
> > To: infrared@xxxxx
> > Subject:
> >
> >
> > I have an old Super Speed Graphic with a very good Rodenstock
> > lens. How can
> > I determine how far to extend a 135 mm lens beyond the
> point of focus for
> > visible light to focus properly for Kodak HIE infrared film with
> > a 87 or 89
> > filter?
>
> Hopefully, you'll use HSI, as opposed to HIE. <g>
>
> Kodak suggestes that you extend the lens 1/4% of the focal
> length, so we're
> talking about less than half a millimeter.  Personally, I
> stop down to about
> f16 when shooting my Crown Graphic with my 150mm lens.  No problem.
>
> george
>
> ---
> HandMade Photographic Images
> http://www2.ari.net/glsmyth/
>
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