Nebraska,
I own the Nikon ED 50, it weighs just 18 oz. Fits in a pack along with the tripod just fine. All together it weighs just under 3 pounds. I wouldn't head into the back country without it....

Nikon 13-30x50 ED Fieldscope is priced at $799.95 and weighs 18 ozs. Leupold offers the same optics in their SX-1Ventana, 34 ozs with a carring case and tripod for $349.99. I have purchased many...