Color Evaluator II - #5002

I was reading a post in a portrait artist forum and some people are using ( red acetate) red color glasses to see tones more clearly and to highlight drawing mistakes.

They say when you look through the lens to take note which areas stand out as the lightest on the model and then check to see if those areas are standing out as lightest in your work.

Looks like a useful and inexpensive tool.  I’m thinking about getting a pair only $7.99 at Cottagemills.com

http://www.cottagemills.com/default/colorevaluator.html