Opportunity is missed by most people because it is dressed in overalls and looks like work. - Thomas Edison
We ran some exposure time tests yesterday with 2 different exposure calculators on the same screen.One was from Chromaline the other was the Saati 21 step exposure sensitivity guide. The out come could have not been and more confusing. While the Chromaline calculator indicated that we should be able to reduce the exposure time by 75% the Saati guide left us to believe that we do not need to adjust the time the screen was exposed at all. Now that`s confusing
I get that, but in this case there would be a difference of almost 45 sec in exposure time depending which calculator you prefer to trust.
Quote from: Rockers on February 27, 2016, 08:12:45 AMI get that, but in this case there would be a difference of almost 45 sec in exposure time depending which calculator you prefer to trust.this can certainly be true as 'exposing for detail' can cause under-cured screens based on your light source and if it's under cutting or not.suggestion would be to try AlBuffington's trick of wiping the inside of the screen on each of those right after rinse out with a clean white rag and seeing if you get any transfer of the emulsion color... (still not a 100% guarantee, but would certainly show you if it's grossly undercured) -- I'm betting that a screen exposed with the time based on the chromaline test will be undercured.you could also use a bit of screen opener on a rag on the screen after it's dried...