Re: ATM Re: Two Mirrors/One Tool

[andydtg@alpha1.phoenix.net]

Steven Lee wrote,

>If you are after perfectly matched mirrors specifically for binoculars, then
>I would recommend doing as you planned and alternating each mirror on the
>tool, but note that binoculars only need their objectives matched to 1% or
>so while this method would yield essentially perfect matches. (no harm in
>doing this).

I agree with the 1%, but you might also be able to tolerate a larger 
differential in FL by using 2 barlow lenses to 'fine tune' the efl
to get identical mag in both scopes. This also takes into account any
variation in the fl of the eyepieces.

Andy Saulietis / DTG Alt-Az-Fp Drive Systems
12617 Harriet Ln
Santa Fe, TX 77510 USA
409-925-8854 Voice/Fax