The Zeiss is fast. when you release the button you have the reading. If you see little red lines moving acrossed the lower edge you probably aren't going to get a reading, your target is too far or not reflective enough. Have never used the Leica. I did a lot of research on the Zeiss and it seemed to fit my needs. I was comparing the Bushnell 1600 and the Zeiss. The Zeiss glass is clear and sharp and the company has a good reputation. The Zeiss was less expensive too. I would like a tri-pod mount but there is a work around on that. I haven't had the unit long enough to use it in snowy conditions. Come to think of it have not had it out in rainy conditions either. Now you have me curious, I'll have to try it the next rain we get.
Russ
