Quote:
Originally posted by janoskiss
Good article, except for that horrifying picture of two plastic rulers scraping against the delicate surface of the main mirror. I'm still too much of a whimp to remove and centre spot my mirror.
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Yes I don't like that either !
The better solution is to make a paper circle the same diameter as the mirror.
Fold it in half twice so it looks like a quarter of a circle. You then cut a millimetre or two of the point off and unfold the paper.
The result is a paper template with a small hole in the exact centre. Get a felt tip marker and jam it in the hole
Centre spotting really is easy, but dont do it until you have collimation tools.