I have a set. They will hit 1800 yards plus hand held with no support. I can range off a metal fence post using the bulls eye setting at several hundred yards, something a Leica will not do at any price. Ranges off plain old flat dirt at well past 700 yards.

They have a slight blue green cast to them, I assume from beam splitters for the laser in the optics.
Very good for observation unlike the monoculars. Outranges every rangefinder on the market under $2000 except the Swarovski.