This whole exercise is based using a “gel” of your choice taped to a plexi mirror. We used a 4×4 inch plei mirror and taped several different gels on it to see what kind of reflection would be accenting the old razor from my grandfather. I tried to get the typography to read but it was one to many shaves ago. It says … The Merchant Biscuit Company, Denver Colorado.
Notice how the gel changes subtly the color of the razor head.
Ah, you can certainly see how the orange CTO is workin’ here.
Strobe through P25 Matt white plexiglass
Notice how the blue gel is working in the shadows there in the lower right.
Here is the orange again. Now here is the lesson…
When you tape a gel over a mirror it doubles its value. Why? Light goes through the gel once and hits the mirror, then it bounces back from the mirror surface, through the gel again, and on to the subject. So a 1/4 CTO is really a 1/2 CTO. Got it? Have fun. I use this all the time in product photography. Little mirrors and gels.