Quote Originally Posted by RalphLambrecht View Post
i buy laser-shot pinholes frompaul koza @ munich university, very clean and accurate.

Paul.Koza@physik.uni-muenchen.de
On his e-bay site Paul Koza states that he drills his holes instead of laser "shooting".

The two samples he shows, drilled versus laser-shot, with the drilled one looking finer, got the same image size.
But they are actually apart in diameter by factor 2.5 or at its best 1,7, to the actual benefit of the "coarser" laser one...

http://www.ebay.de/itm/Lochblende-Lo...item2a26c4c015