Archived posting to the Leica Users Group, 1998/08/06
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Hello all, Calling upon any expertise out there to help me avoid reinventing the wheel. I have one of the old Leitz three filter turrets (14116) and a bunch of the E43 filters and empty E43 rings that fit it. Also most of the Kodak gelatin filters in 2" size that are easily cut for fitting into the E43 frames. Also a stable enlarger, the old Focomat IIc. My project is to develop an easy way to make three successive exposures through three different color filters onto very fine grain B/W film. In theory, the end result will be images that are perhaps 2-5x higher resolution than conventional color films which can be combined to make high quality color prints. Also, the B/W negatives should keep better over a long period. I realize that this only works with stationary subjects and that it may involve some difficulty. Some potential problem areas that come to my mind follow and any comments would be much appreciated. 1) Color separation. One possible set of red, green, blue filters is #25, #58, #47B. Would wider or narrower spectral bands be better? 2) Exposure. I had thought of individual through the lens readings of a gray card and manually setting shutter speed to that value when shooting actual subject. = 3) Registration. I see this as the biggest problem. Any easy way to align film image to sprocket holes or punch film in an M camera a la NATRA? In practice, could I just try to align the corners of the three successive images at the same points on the enlarger baseboard at maximum magnification? 4) Is it at all practical or not worth the bother? = Ciao, Harry =