Hello to all,
I have not stuck my head into this Forum for a long time. My question is: For as close as is possible to a "Perfectly"round hole, I have read that acid etched holes are superior to laser holes. I am also in possesion of some holes that were micro-filed under magnification and are claimed to be superior to laser drilled holes. My goal here may be in conflict with some people's Philosophy. But I want to get the sharpest image that I can, using no lense.. I found a company website that claims superior holes via acid etching. The cost is high, but not discouragingly so.