How to use the owl's long slingshot

The use of the owl long pole slingshot is as follows:

1, aim first, pay attention to the distance from the pupil, that is, the distance between the eyes and the line of sight. The distance from the pupil has two functions. One is to avoid the harm of recoil to human eyes when shooting. Only when the human eye is at a certain distance from the pupil can the largest imaging area be obtained.

2. People's eyeballs must aim at the same axis, otherwise parallax will appear. There will be aiming errors. When aiming correctly, the surrounding shadow area is uniform and annular, and the parallax is uneven around the imaging area. Once the crescent zone appears, the projectile will deviate to a larger part of the crescent zone.

Don't hesitate to launch immediately after we determine the location of the prey.