Quote Originally Posted by Rich Ullsmith View Post
Can these be made with a +/- .01mm tolerance? I have all my cameras set to about f250
Probably not. Could you measure them that accurately to verify them?

I'm sure they're more than accurate enough though, whatever the actual tolerance is.

I would like to be able to do this myself but the laser we have at work is for cutting plastics and doesn't make a mark on even the thinnest of foils.