Quote:
Originally Posted by koputai
I know, I've read Texereau, and he says don't do it. But, I have a spare mirror, and think I might give it a try. Am I absolutely going to ruin it? Is it even worth a try?
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Unless the glass is very well annealed boring the hole after the mirror has been finished may release strain, thereby warping the mirror. I guess the issue is whether you can spare losing the glass or not.