I am looking for a reasonable mirror for a mirror mount project for my 20x80s. I want to mount the mirror and binos so that you can look down into the eyepieces. I have seen many prefab units online, but I am interested in making one myself. I would like to know where I can find a good mirror, and what things I should look for in that mirror including type, coatings, etc.... Would I be happy with a front surface (or first surface?) mirror from the surplus shed? Or should I buy something of higher quality? I am not expecting prefection at this time, but would not like fog, distortion and false color. Thanks for any tips and experiences.
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