I forgot to add two pieces of info, that specifically answers questions
posed by Tom Foote. I have the swift 10X42's that I talked about in the
other post. If you are interested be sure to get the swift trilyte (the
waterproof model) only a fraction more than the swift audubon 10X42 roof
prism. THey are quite crisp in image, they are light weight and are above
average in low light conditions. If you don't have the money for Zeiss
10X's or similar priced models I would rate these well. One diadvantage
however is that they do fog up, but that is easily externally wiped off.

Scott Downes
sdownes at u.washington.edu
Seattle WA