How to stabilize the hand-held shooting of Canon 640 cannon?

Use your left hand as the main support.

This is the most common way, and the key point is to put your elbows away and clamp them, and gather them tightly against your chest. Two elbows and three points supporting eyes and sticking to the viewfinder are the most common stable shooting methods.

Handheld photography means that photographers use hand-held cameras and camcorders instead of tripods.