I have been using a opti-logic 1000lh rangefinder for a while and I'm very impressed to say the least, not to say it doesn't have its shortcomings. The opti-logic's a little bigger than some of the newer units but is pretty thin and fits perfectly in a BDU pocket. Next there is no magnification but the only time this hurts is when the target is at extreme ranges and there are no landmarks near the target.The reddot sighting system can be held very still on the target and can be seen even in very low-light conditions. Now for the good part this thing ranges like nothing I have ever seen. It ranges better than any rangefinder I have ever compared it to, Which includes Bushnell yardage pro legend, yardage pro 1000, Elite 1500 and leica 1200. We have ranged a lot of objects with it but what really impressed me with it is I can range bare trees at 1400 yards, not once in a while but every time. It's as if it doesn't need anything reflection to range objects at longer ranges. The XT and LH both have angle-compensation and the LH has a degree reading and some other options. They are made in the USA (Tullahoma,Tennessee)and you can actualy speak to and understand the people who are building the units. So if you every get a chance try one out.