Re: EOS fogging (Konica IR, SFX, APX)

["Bill D. Casselberry" <bcasselb@xxxxxxxxxxx>]

Stephan wrote:

> I recently shot some rolls of Konica IR 750 with an EOS 500 N (= U.S.
> "Rebel XS" ?), which definitely has those *'##!% IR counter LEDs. There
> wasn't any fogging at all. The same is true with Ilford SFX 200 and Agfa
> APX 200 S. So if you are looking for an alternative to partially fogged
> HIE pics...

	Ah, but none of those films are HIE   :)   ... the Konica does 
	"get out into" the IR spectrum a bit, but the others are hardly to 
	be considered as IR sensitive, more just extended red frequency 
	sensitivity b&w emulsions. This is not to malign these films, just
	to point out that they are not a fair comparison to HIE which is
	a true IR sensitive emulsion. The Konica also has an anti-halation
	layer which the HIE doesn't, as I recall.

	Any old 35mm manual, meterless camera body of good manufacture will
	suffice for IR, as the exposure can be done w/o metering. I use an
	ancient Pentax H2 screwmount body, circa 1959 w/ backing paper from
	Agfa 25 120 film Scotch-taped across the pressure plate. No problems.

							   Bill


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