Charles, > Some time ago I bought some photo stuff and among it there was a Ross >Resolux 50mm enlarger lens with a strange attachment ... it¥s just like an >extention tube ... what¥s the function of this tube??? On a number of occasions, I have had to make a "reduced" size print from 35mm. In order to achieve this size of small print... a typical use might be to make a small print to put inside a locket for a loved one... the lens extension (at that reduced magnification) has to be increased as the enlarger head is lowered. Ken [||/\/\/\/\//\/|| Ken Sinclair RBP, FBPA. [|| ||-| Applied Photographic Services [|| || | Lethbridge, [|| || | Alberta, Canada, [|| ||-| (403) 381-1654. [||\/\/\/\//\/\|| photo1@telusplanet.net _0___________0______ |___________________ | O