Re: ATM 24.5 inch binoculars or?(long)

[iss@pvtnetworks.net]

Re,

>>f 4.5. My question to the list is should I make the other blank a f 8 high
>>resolution scope (parachute included)as originally planned or, make it the
>>same 4.5 and turn it into a binocular? Any thoughts?

You could design it so half of it could be mounted separately for
use as a single scope. As someone pointed out, Paracorrs and Barlows
can be used to get f-8 if you really want it.

>.... Personally I think the bino will out perform the mono.... even at f/8,
>and it
>will be a whole lot easier to use as well.... but at the end of the day it's
>your
>call....

I agree on the performance of bino vs mono visually. One minor down side to
binos is that collimation problems make it difficult to use at high power
so you tend to get limited to low X wide field objects & there just aren't
all that many of them.

>    Anyone have any idea what the biggest bino ever built is...?

Suding's 20" binos were the largest I've seen & used. He's  sold
them to someone I think. IMHO they were roughly equivalent to
a 30" mono view at TSP, one of the more memorable views with them was
of Omega Centauri 3-D filling the field.

Andy Saulietis / ISS Alt-Az-Fp Drive Systems
HDPE Worm Gears, Custom designed mount/telescopes & Machine work
CCD filter wheels & other custom accessories
39 Silver Fox Trail
Cloud Country Estates
Mayhill NM 88339
505-687-3067 Voice
505-687-3021   Fax
e-mail: iss@pvtnetworks.net
32 54 13 N  105 31 44 W 7300' elev