The day I set it up I tested it at the distance I thought the deer would stop. It was about 10 feet. I got a picture of myself and that was the only one it took. Also my corn looked to be scratched up by turkeys or something. The leaves were brushed away to one side. The guy at moultrie said that if it is cold my range would be longer out to 20 feet. When it gets warmer such as it has been lately ( mid 50's ) my distance would be alot shorter like 8 to 13 feet. I was well within that range cause 5 yards would be 15 feet and still no deer. I will try again but I think I may have voided my warranty and service plan. I put two lag bolts through it for security. Does that count as " customer modification " ?