RE: Deer cannot see orange.
The key is to be in a fat tree so you don't stick out. I think deer will notice (look at) any one color that is not broken up with a pattern,but being still will cause them toreturn to simply walking through/browsing.Moving and getting winded is what'll kill you, but being winded isn'ttoo bad if they can't quite pinpoint the location or smell. Most deer that wind me are certainly in shotgun range, andsimply come through nervously. I make a point to moveSLOWLY, particularly in windy or wet conditions whendeer can be very close without your being able to hear them.