David wrote:
> Hi Bill.I suppose i am making this a bit more
> complicated that it should be,and i have read the
> replies by you and Aaron,its the ISO thing that
> still has me puzzled.
;^) "Pay no attention to that ISO-man behind the curtain"
... from "the Wizard of Oz"
> If the red #25 only corrects for 1 stop should i 'pad'
> the ISO to 100,even though i'm not "metering"
> and tell the lab such.
That is due to the different wavelength of IR compared to
red light - more IR will pass the red than "standard"
filter factors would suggest, that's all. Trust the Force,
shoot manual, as mentioned. Just tell the lab that you
shot it correctly! Be absolutely sure that they are aware
of IR's nature!!! Most recommendations for development
I have used are w/ D76 1:1 at 70deg for around 8 to 10 minutes
for small tank development.
> Or better yet,what are you setting the H1a ??
> on and what are you developing for.
the H2 has no meter, so the asa dial is for "reminder
purposes only", if it even has one- I'd have to check.
I use the D76 1:1 for about 9min at ~70deg. It's been
some time since I shot any - Aaron is "da man" for development
and processing issues, IMHO. After all- it's his profession!
> As far as keeping track of exposures etc,i will,for future ref etc.
;^) ... then you'll know for sure and can be our local expert
on this matter, complete w/ empirical data on the subject !8^)
Bill
---------------------------------------------------------
Bill D. Casselberry ; Photography on the Oregon Coast
http://www.orednet.org/~bcasselb
[EMAIL PROTECTED]
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