21-Step transparent scale for plate making, contact printing and photo
processing. Steps are progressively more dense in increments of 0.15. Made in
accordance with GATF specifications.
The Stouffer
21-Step Transparent Guide is heralded around the world as
"the platemaker's choice". It serves as a gauge to evaluate the variables
encountered in the exposure and processing of lithographic plates and
photographic materials by contact. It indicates the direction and magnitude of
exposure or processing adjustments necessary to achieve the desired results. It
is also used with contact positives, silk screen, printed circuit boards, and
most other photographic applications for judging results, determining speed and
contrast of emulsions, and hardness of coatings.
Pricing
