Hi: I am starting to photograph 4x5 using a microscope with a photo objective and no discernable f-stop. I have no idea how to determine what my exposure time shoul d be. I can try to place a meter in the opening where the ground glass goes but wouldn't know what to do with the reading anyway. Can someone point me in the ri ght direction so that I could calculate approximate exposure times knowing the l ight intensity at the film plane and the type of film used? I wouldn't have to d o this that frequently since I would be taking nearly similar pictures every tim e. Thanks for any help that you can provide. Nick
Bookmarks