I have started to like photography recently. Could you please tell me about the electric zoom and manual zoom of the SLR camera?

SLR cameras rarely have electric zoom. Manual zoom is fast and accurate and does not consume power. However, with the increase in video shooting, electric zoom has begun to be in demand, and Canon's 18-135mm nano usm lens has increased There is an optional electronic zoom.

Manual zoom lens: Change the focus by manually rotating the lens on the front-end camera. This function usually appears in the configuration of gun + manual zoom lens. It is set once and does not change frequently in the future. If you want to change the focal length, you need to open the shield again and rotate the lens. This type of lens usually requires adjusting the focus ring after the zoom work is completed.

Electric zoom lens: Electric zoom lens usually refers to the camera that can zoom through the control terminal (such as hard disk video recorder, matrix controller, cloud mirror controller).