Re: Kodak infrared

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

Guido:
I process all my HIE and Konica 750 in Patterson tanks with no problem
whatsoever.  (I have lately been keeping the white room lights off and
letting my body cast a shadow over the tank from a dim distant OC safelight
light behind me (which of course is not IR safe) only while pouring the
developer into the tank.  Then the big white lights go on again.  This is
because at one time I thought there might have been a problem with the
light trap when the cover of the tank is off.  I think now my problem was
in loading the camera, but I superstitiously still take this precaution.)

As for ISO and development, I shoot all my HIE at an EI of 50 (not metered
through the filter) which equates through the filter to about 350 through a
#25 and perhaps 450 through a #29 depending on your particular camera's
meter sensitivity in the red as compared to the rest of the spectrum.  So
it seems you exposed about where I do.  It would be good if you bracketed
up and down by at least one stop.

I personally would process such film at the Kodak recommended starting
point with D76 undiluted, 11 minutes, 68 deg F, because I know of no change
in processing that would account for the effect a cloudy day has on IR.
I've been pleased recently with the results for one roll processed in XTOL
diluted 1:1 for 9.75 minutes at 68 deg F which is a time/temp someone on
the list suggested.  In all cases I've switched to distilled water to make
up the solutions and with the XTOL, a problem with pinholes in the emulsion
seems to have decreased.  Use a water stop bath too.  

Some may suggest pushing the processing in time or temperature a bit to
insure you get the "halo" like highlights (printing through somewhat
blocked highlights can give this impression).  Shadows in IR on a cloudy
will be sure to give you deep blacks (often thinner negs in the shadows
than you would like).  I'd be interested in how the portraits turn out.
Most on the list seem to suggest IR is not at all flattering to the skin.
					Best of luck,
							EltonK 







At 12:06 AM 2/17/98 +0100, you wrote:
>Date: Mon, 16 Feb 1998 16:45:45 -0500
>From: "Guido A. Petruccioli" <guidopet@xxxxxxxxxxxxx>
>Subject: Kodak infrared
>
>Dear List members,

>I have done a portrait set with infrared. Unfortunately, the day was
>cloudy and I rated the film 400 ISO with a red #25a filter.
>What should be the best developing time with Kodak D-76, in order to
>have the best results. I would like to have strong halo-like highlights
>and deep blacks.
>
>Is there any problem if I develop the film in a Patterson plastic tank ?

>Many thanks in advance,
>GP

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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