Date: Tue, 05 Jun 2001 10:29:20 -0800
From: "Bill D. Casselberry" <[EMAIL PROTECTED]>
Subject: Re: SFX & InfraRed
Aaron wrote:
> You may want to try Ilford's SFX film. Kodak's HIE IR has no
> anti-halation layer, which adds to the problem (but also produces neat-o
> characteristics in the images), where SFX does. I have several
> customers who have used SFX in newer Canons with no problem. Of course,
> SFX is not as sensitive to IR as HIE, and produces a different (and a
> little less exotic) final image. It's quite nice, tho'!
Bill Wrote:
<<<<The Ilford SFX is just an extended red sensitivity and barely
gets out into true IR wavelengths from what I have gathered. I
hear it is an off-shoot from the "traffic monitoring" films.
If you attempt using much more effective filtration than a regular
red or their filter - you won't get much onto the film.
IMO, the SFX fails to qualify as an infrared emulsion. Stick
w/ the Kodak HIE or the Konica 750nm for "real InfraRed". The
Konica "peaks" its sensitivity at ~750 nanometers whereas the
Kodak runs well out into the 900's. The SFX drops off somewhere
just past ordinary red wavelengths.>>>>
sfx200 peaks at 720nm extending to740nm. Some nice IR effects are possible
with a #70 or 89B filter. It is not like Kodak HIE, but IMHO is nice in its
own look. The 89B is the strongest IR filter that sfx200 can handle.
Anything stronger will not work.
BTW, I use my K 1000 w/ handheld meter for IR. Konica with 25 and 89B
filters and Ilford with the 89B filter. The 25 is too weak for the Ilford.
My infrared gallery has some examples of Konica w/ 25 filter. I willsoon be
adding some SFX photos.
Keith Zimmerman
[EMAIL PROTECTED]
http://homepage.dave-world.net/~vkzimm/gallery5.html
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