Shalu. Do you know anyone who's been using the dot sight on a Canon camera. If so are they happy with it?
Many of my friends got it after I used it. So far, I know of no Canon friend who is happy with it , couple Nikon friends who tried it like it. You have to trust the camera's focusing ability as long as the bird gets into the frame. It also requires good calibration, some training and practicing to use it effectively.