Ask the photographer to help explain the terms autofocus, split image, AEL and bat. Thank you!

Image splitting = This is a necessary focusing method in the era of manual focusing. Through two wedge lenses, the image at the focal point is cut into two parts, and the two parts will overlap only when the focal point is completely in the focal plane.

AEL= exposure lock, that is, if you press this key, the camera will automatically keep the current aperture and shutter unchanged until the next shutter press.

BAT= exposure surround, that is, after the shutter is pressed continuously, the camera takes pictures in three ways: normal, underexposed and overexposed, so as to improve the success rate of film production.