On 04 May 96  10:38:28 Bob Lawrence typed to Niels Petersen about Space Ace

 >   20 X 50 means 20X magnification and a 50mm lens.

Thank you as well Rot :-)

 >  NP> Would my binocs be OK for sky looking?

 >   It's hard to hold 20X steady enough. 10X is about the maximum.

As Roy said.  I need something solid to fix them to.


 >   There is also an optimum for night vision.

By optimum do you mean, in light gathering capacity?

 > 8x40 or 10X50 gives a 5mm
 > exit diameter and that is about the minimum for general use. 7X50 is
 > better.

It must be a bad day.  I am lacking in comprehension. :-(

Cheers
Niels Petersen

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