I've just completed painting in the letters on a set of command lenses. This is the first time I have ever tried to do this. I used black Testors paint and a fine brush and carefully painted in the letters by hand.
I am not very pleased with the results.

This was tougher and more frustrating than I thought it would be. The end-result looks roughly acceptable - in an "edges-worn-with-time-sort-of-way". I'm debating whether to leave them as-is, or to remove the paint and do them over again.
These lenses are the kind where the letters are a raised bevel that stands out slightly from the glass. (They are not the type that has a raised outline surrounding the letters.)
Some questions...

When you guys paint your letters, how sharp do you manage to get your letters?

If you are working with the raised type of letters like the ones I have, what gets painted?
A) Only the flat letter surfaces. Not the surrounding slanted bevel edges.
B) The flat letter surfaces -AND- the surrounding slanted bevel edges.

How will do you think Testors model paint will stand up to the heat of light bulbs over time? (Probably not more than 25 watt.)

Any other advice?
Ryan K
Ryan K.
Huntington Woods, Michigan