Lasers

In recent years the price of laser pointers has been decreasing and there is a growing trend of using them for astronomy, both as pointers and as finders. With the single exception of mirror mounts, for which they are the most practical type of finder, any advantage they offer over reflex finders is, in my opinion, more than offset by the combination of cost, potential danger of eye damage, and general nuisance to other astronomers. If you do use a green laser in company, you should exercise extreme care and should ascertain that none of your fellow viewers objects to its use.

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