I am an old guy that shoots in the mountains most of the time I have several makes that have been mentioned here but my favorite is my Schmidt Bender 5x25x56 it's a little heavy for some but I think being able to see is worth the weight & cost
Zeiss, is the parent company of Schott Glass(German), considered by many to produce the some of the best optical glass In the world. Schott Glass is one of the two primary optics/glass suppliers, the other being Hoya(Japanese). Schott glass is sourced/used by most of the European scope manufacturers. Zeiss, S&B, Kahles, and ZCO, amongst others. At least to my eyes, the difference is readily apparent…As is often, the cost.anything zeiss