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Mirror Source

Started by pwp818, 04/23/2008 01:51PM
Posted 04/23/2008 01:51PM Opening Post
I am trying to build a binocular "mirror box" to ease my aching neck. My binos are Oberwerk 20X80's. Does anyone know where you can get a affordable mirror for binos of this power?

One source states: Our PREMIUM mirrors have a wavelength error of ~/= 1 lambda.... While some purchasers have successfully used this mirror with binoculars up to 20 Power, 18x is the recommended limit.

So, what surface accuracy will I need for 20X binos, and where can I get one?