In a message dated 2/7/2002 6:58:43 PM US Eastern Standard Time, [EMAIL PROTECTED] writes:
> In my quest to be more creative in my > photography i plan on experimenting with > filters and some IR film soon.I bought a Tiffen > #25 red today and have a procedure question.The > book says to open up 3 stops with the > filter,which is fine i think i understand now > which way is open up(f11 to f5.6 is up > correct).My ? is ,is it best to > compose,focus,meter THEN put the filter on.Or > do most of you install the filter then compose > etc. > Correct - opening up is going to a larger aperture. IR is something of a crapshoot with an exposure meter - some have mastered metering; I don't try. With a Red 25, if full sun is on the subject I bracket - 60, 125, 250 @ f8. When the sun is less than "strong", I open up or increase shutter speed. I prefer increasing the shutter speed, because every little bit of DOF helps with the focus. (If the light is flat, I don't bother. IR is best on frontlit subjects, IMO.) One of the three is always (well, nearly always) satisfactorily printable. I process HIE as if it were an ISO 200 film. Expect grain and plan to love it. Good luck - you will need it until experience kicks in. Regards, Ed Matthew Indianapolis - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
