As was said, it's not necassary. Animals that are keen such as the turkey and coyote, will see any movement before they see a camera as being anything to do with danger.
I do a lot of videoing called coyotes. We call them close and I can't think of a time that the camera had anything to do with scaring the coyote. Usually its the operator of the camera of it's the hunters movement, or its the critter smelling one or the other that spooks it! Of course, turkey don't smell ya, BUT they are very good at picking up the movement.