By PeterBrett on 6th August 2021
"I am a newcomer to darkroom printing, so my remarks are limited by my lack of experience.
The appeal of these filters is the value for money. They are easy to cut to size with a knife or scissors, easy to use and demonstrate the impact of different filter grades on multi grade paper. I am pleased with them and recommend them. I have found that as they are very thin, that they can slip out of my filter holder. But that easily resolved."