Originally Posted by raynhamquilter
I went to Friendly's for Sun. breakfast a while back and they had the "3-D" glasses (like the old ones--made of cardboard with the red paper lenses. I happened to have my photo album out-it is very colorful large dots of many colors. The glasses made the color disappear and the dots became light, medium, and dark grey--the color values. A really quick way to grade by values!
Yes! I've done the same and I keep the small red acetate in my purse for value testing at the quilt shops. Joann's used to have a handheld red glass tethered to the shelves, but that was years ago!
Quilters who I saw on an ol' "Simply Quilts" show, Pat Magaret and/or Donna Slusser, used to talk of the "Ruby Beholder". It's $8.99 if you Google it to find the site.
3-D glasses... who would have thunk it! Hahaha Quilters! that's who!