Saturday, October 22, 2011
Sharpness, resolution and grain of New55
Around the periphery of the image, where there was a black background, some reversal occurred, but not in the center. The spread of the reagent, and the exposure, determine how much development is left over after peeling. It seems that no harm is caused by a longer development time, but we are going to use 2 minutes as the standard of comparison so we can detect changes as the design evolves.
Posted by Bob Crowley at 6:02 AM