Jay Pierstorff shows you how to photograph flying birds with a dot sight finder. These devices are slotted in to the flash shoe of any camera that has one, and then you can easily track fast moving objects by looking through the dot sight with both eyes, and keeping the red dot on the subject. Three models are compared. The Olympus EE-1, the Photo Gear Designs ESM eco PGD Tracker, and a generic one you can assemble yourself. Then learn how to use and calibrate them.