David, I have done some pinhole polaroids and have found that they are very sensitive to UV light. A glass lens blocks a lot of the UV but since pinholes don't have glass I use a UV filter and usually have to add some yellow filters too. This helps my balance a lot. I assume thats what you mean about "bad rolloff because of reciprocity". I use sample filters from a theater supply shop.They sell filter sheets like Lee or Rosco for cheap. Ask them for a swatch book. Also look for a swatch from "Rosco CIngell" This has swatches of all the correction filters used in color conversions.
Chris >===== Original Message From DAVID WALTERS <wal...@prodigy.net> ===== >Evening, I apologize for the lag time on answering but >I had a brief episode of file overload while trying to >upload some pics (Sorry and thanks, Gregg). I have a >pinhole from my last roll posted at >"http://photos.yahoo.com/bc/wal...@prodigy.net/lst?.dir=/Photo+art&.src =ph&.order=&.view=t&.done=http%3a//photos.yahoo.com/" >("badge"), along with some other pieces of mine. The >body cap is on my Canon EOS, I measured the distance >at 49 mm and I'm using a laser drilled opening of >.0102", this gives an f/stop of 163, I reckon. Using >the bulb setting has given me fairly good results with >Kodak film, although it seems to be able to meter >through the pinhole. The Polaroid pinholes are from a >Polaroid 210 with a hand drilled pinhole, I had such a >bad rolloff because of reciprocity that I have stuck >with B/W since. I might go back to color with the 210 >and stick to extreme sun in the future, we'll see. >Thanks for the welcome, David Walters > >_______________________________________________ >Post to the list as PLAIN TEXT only - no HTML >Pinhole-Discussion mailing list >Pinhole-Discussion@p at ??????? >unsubscribe or change your account at >http://www.???????/discussion/ Chris Peregoy pere...@umbc.edu http://userpages.umbc.edu/~peregoy
