how do you eliminate scratchesgreenspun.com : LUSENET : Large format photography : One Thread
i would be interested in knowing how experienced LF photographers deal with scratches on their negatives.
-- howard schwartz (email@example.com), January 15, 2002
Opaque black for B&W negs.
-- Andre Noble (firstname.lastname@example.org), January 15, 2002.
Howard: Smaller scratches can often be fixed with either a very thin coating of Vasoline or with a product called Edwal No Scratch. If the scratch is really bad, the neg may have to be retouched professionally.
-- Doug Paramore (Dougmary@alaweb.com), January 15, 2002.
nose grease works great and there is a free supply right on your face.
-- doug (email@example.com), January 15, 2002.
you can also use a little grease from just behind your ear :)
-- john nanian (firstname.lastname@example.org), January 15, 2002.
When I worked in a photo lab before the days of Photoshop, we used the grease from ones nose to spread on the scratched negative....similar to what Doug and John are doing. It worked better than any commercial product we tried. Please note: the finger goes on the outside of the nose, not the inside!
-- John Wiemer (Wiemerjo@slcc.edu), January 15, 2002.
Hi Howard, another slant is how to prevent them in the first instance!! I try and ensure the holders are free from dust etc, prior to loading. I use an anti-static brush and a can of compressed air - so far so good!! The choice of enlarger head is also important - a diffuser head is great at disguising/reducing blemishes on negs. Regards Paul
-- paul owen (email@example.com), January 16, 2002.
Which side of the film do you put the nose grease on ?
-- Paul Mongillo (firstname.lastname@example.org), January 16, 2002.
Paul....I always put the grease on the emulsion side, the dull side. That's where the silver halide crystals are located. Not sure if there's a logical reason to this, but it does work. Best of luck.
-- John Wiemer (Wiemerjo@slcc.edu), January 16, 2002.