Re: IR and Flash Photography

[shomer@xxxxxxx (Steve Homer)]

>From: "Willem-Jan Markerink" <w.j.markerink@xxxxx>
>
>How did you set your flash meter for HIE & #87C?
>The same as outdoors, 10-12 ASA?

I set my flash meter for ASA50, and the negatives
are maybe a half-stop thinner than I'd like. Outdoors I was
getting an effective ASA of 800 with the 87C.
10-12 ASA, really? Are we comparing ASA's to DIN's
or something? That's a pretty wild variation.

I used TMAX developer, probably not a great choice,
but what I had on hand. If I'm concerned above all with
getting less grain, and don't mind sacrificing film 
speed, what developers would people recommend?

>Just a thought: you might run into a Schwarzschildt effect you've 
>never seen before....1/1000s is not something the Konica engineers 
>would have been worried about when they wrote the spec sheet....;-))

Could you give us a brief lecture on Schwarzschildt effect? ;-)

>> Sunday afternoon I'm photographing a 
>> model who has a lot of tattoos. I'll
>> be using the Konica and Ilford SFX
>> films; they both darken tattoos nicely.
>> Should be interesting...
>
>Cute!
>Must remember that.

Unfortunately, she didn't show up.... Next month, she says. 

Seriously, though, I've tried split-filter printing
to get local contrast enhancement of tattoos against
light skin. I'm experimenting with the IR
films to try to accomplish the same thing. 

If only the SFX-200 was available in medium format....
My flash system isn't powerful enough to get a useable
depth of field for portraits with the Konica. 
________________________________________________________
Steve Homer   shomer@xxxxxxx     Senior Technical Writer 
Integrated Measurement Systems, Beaverton, OR  U.S.A.

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Topic No. 2