I have been out several days in the field when a Swarovski and Leica Televid were set up side-by-side. They are equally sharp and clear but I prefer the focus on the Leica because it has both course and fine adjustments. Both scopes function well at 60X which you need even at local lakes like Black Hills. The only limitation to really high magnification is wind. I would recommend the Leica as my favorite Chris Barnard cbarnard52@aol.com