Re: Konica IR ...!st time

[Eckhard Stephan <eckhard.stephan@xxxxxxxx>]

Luvdove6@xxxxxxx wrote:
> 
> > with #25 red it becomes 8 ASA
> 
> I actually shoot mine through the 25 at ASA 12... 

Effective or indicated film speed? With a Wratten #25, I shoot Konica IR
at an INDICATED ASA 50, metering **THROUGH** the filter. This gives me
an EFFECTIVE film speed (which I would have to use, if I metered without
the filter in place) of ASA 12...;-)

> Then I use Rodinal for I think 6:50 min at 20 celsius... either that
> or 7 min...

Which dilution do you use? 1:50?

Eckhard

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