Used my TN42vn last night to spot a deer from about 150 yards away so my Husky, CAPO, could see him! If my eyes were good enough I could spot a deer, fox ect. from much, much further away,,like 1 mile! On a side note, CAPO is 6.5 years old and we have hiked over 13.5K miles. Our goal is to literally walk around the world, which I feel we can do because Husky's live a long life for a larger Dog. At the pace we are going[7 miles/day] we should reach our goal when he is 11.5 years old. EDIT: Speaking of Deer. That is what he was looking at [across the field] in the picture below! A profile picture,,definitely in my top 5 pictures that I have taken of him.