I have the no-flash cuddeback myself, 2 of them to be exact. The deer still get alarmed by the little red lights blinking on the no-flash. The video's I have prove that. I've seen it as well that the deer will sometimes take a different route being they have seen this camera in the same position on the trail before. I've also watched the deer come in on the trail and see the camera before it even goes off, they know these trails very well, anything that looks out of place there going to notice anytime! Its no different then when you put up a stand. They notice limbs trimmedthat were there before but are not anymore. Or limbs that you have trimmed and you carelessly threw them on the ground instead of throwing your brush a ways off the trail.I don't think these camera's spook them right out of your area though. I've seen the same P@Y buck (150" class) on my cuddeback no-flash on4 different occasions on the same trail. I would like to try and put them up higher in a tree aiming them down hoping that my take some of the edge out of them, that would also give you more of a camera window as well.