|[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]|
<< I'll have to try this with negs - after I figure out how to make a slightly out of focus dupe! :) >> Well, the easiest way is to make a contact print from your original film image. One assembles masking film (emulsion down, overlaid with a EK diffusion sheet, original image to be masked) emulsion up, cover glass (I always use a 3/8 inch "float" glass, hand selected at the glass store to find a piece to cut to about 11x14 and avoid scratches. Now use your enlarger to make the exposure. For an 8x10 area of *focused* light with a Besseler 4x5 enlarger the exposure was about one second with development in HC110 Sol, B for 1.5 to 4 minutes in tray with agitation of the tray for 30-40 seconds and then "still development" for the balance of the time; just let the film lie there emulsion up and don't "move a thang." The agitation helps the dev. penetrate evenly, the still development enhances edge effects. After being fixed, rinsed, and dried (less that half an hour if one used a "hypo clearing stock" and wash for 5 minutes only, which is plenty, one has an orginal image and a fuzzy reversal (because of the diffusion sheet. Set aside the EK sheet in a same place and handle it carefully because scratches are permanent density marks. On a light table, register the mask and the original, preferably using EK red lithographers tape: the adhesive is the best and I have in my files bound sets that were assembled 15 years ago! with no creeping cement oozing out to smear into the image. Play with the layering: there are subtle changes in the effect of the unsharp mask depending on what's on top, etc. After doing it once it becomes swiftly mechanical. I used to make about six of these in an hour, and more if I used 8x10 film and created an array of negs that filled the masking film. . . you know, 4 4x5s, etc. Even works well for 6x6 cm rolll film. Just imagine you are making an ordinary contact print. You can bind them in register emulsion-emulsion or you can bind them support-support (with what is obviously more diffusion. Arnold -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Please: Stay on topic. Trim quoted messages. http://www.leben.com/lists for list instructions.
[Photo] [Yosemite News] [Yosemite Photos] [Scanner] [Gimp] [Gimp] Users