At 03:31 PM 11/2/99 +0000, you wrote:
>
>I thought that you could use auto if the amount of infra-red was
>proportional to the amount of visible light. This is presumably why it is
>suggested that you rate Kodak IR b&w film at 400asa (before making any
>adjustments for filters) and bracket, and why it is less predictable in
>shaded/overcast conditions when the proportion of IR is less predictable.
>
with the deep red filter on there, there ain't no visible light to speak of
for the meter to read, only deep red and infrared.
Be seeing you.
Dirk Wright
< This message was delivered via the Olympus Mailing List >
< For questions, mailto:owner-olympus@xxxxxxxxxxxxxxx >
< Web Page: http://Zuiko.sls.bc.ca/swright/olympuslist.html >
|