i know alot of people who have had major problems with the nikon messing up and the warrinty dep is supposedly pretty bad when it comes to the rangefinders i have the nikon 800 and so far have had no trouble with it but today my new binos and rangfinder from opti-logic came in the mail i havent gotten home yet to play with em but i have used both products before and love em the best part about the opti-logic rangefinder is that it has something in it that measures the angle and will tell u what to shoot something for if its 45 yards away on a hill sloping at 60 degrees whatever the yards or the angle it will tell u what to shoot it for not just what it is pretty cool huh? check em out at www.opti-logic.com i belive they are a first class product and if u ever need to send em back they are more than helpfull if u want to call and ask em about them call at 1-888-678-4564 talk to loretta and tell her dryfire(clay) sent ya she is more than willing to help