RE: Trail Camera's
My experience is that trail camera'shave not bothered the deer. Not to say some people have had deer get spooked from them...
I have had numerious deer at a salt lick for long periods of time with the flash going off every 2 minutes on a digital camera. One mature buck stayed for over 1 hour with a2 minute delay.
Last season, every 1 to 3 1/2 year old deer that I seen on camera I saw on stand. Every 4 + oldmature buck was never seen... interesting. However also had certain weather that was related to this.