David wrote:
> A question then about shutter and f stop
> settings with the thicker filter.The Kodak box
> suggests ASA of 50 for the 25 red and 25 for
> the 80 series.This translates to a full stop i
> believe.
Yep - one more stop needed w/ the #87
> I am shooting the #25 red at 125 f 11,
> (it finally sunk in)would i then use the 87
> filter at 125 f 8?
I kept aperture at f11 and shifted shutter speed to
1/60th - I was using a leafshutter rangefinder, though.
> One stop seems to little for such a big change
> in opacity??
It appeared to come out correctly - very nice, actually
Remember that most of the visible light spectrum has already
been cut out even w/ the #25 red, so we are just eliminating
that last little bit of visible light when going on to the #87
and the IR content is all still passing to the film.
Bill
---------------------------------------------------------
Bill D. Casselberry ; Photography on the Oregon Coast
http://www.orednet.org/~bcasselb
[EMAIL PROTECTED]
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