Great Horned Owl
Well-known member
zzyzx said:Cameras have a red dot site built in.
No, they have a viewfinder or LCD screen built in. If there is a bird up there, and your camera is pointed at a piece of empty sky, it is difficult to get it aimed quickly. With a red dot sight, you see the aim point and the bird at the same time. It allows for almost instantaneous aiming.