some shoters use the magic dot or scotch tape on there glasses.Others just close one eye.Does one have an advantage over the other.To me they both seem to accomplish the same thing which is shooting with one eye.
Closing one eye can cause some muscle fatigue, but it does work for some. I find tape to be less work than closing one eye.
HM- what would be the difference in depth perception between closing one eye and blocking the light into that eye with tape?
I have questions about depth perception requiring two eyes. I can look at a flat picture with one or two eyes, and perceive depth. I can look out my window with one eye covered and still perceive depth. I think depth is more a matter of the size scale we see things rather than the difference in the angle of the light rays coming into two eyes.