I have the Stealth Cam and just got a roll back yesterday. I have used it for two years with no problems. I set it to take one picture and wait for five min. before triggering again. I have some pictures of a doe and twin fawns in my plot and they were there in three pictures within 15 yards of the camera. I don't think it bothers them too much but each deer, like people, has it own personallity and may be a little more "spooky" then the next one.
SF