Features:
When storing the lens, it is an ordinary protective cover , which is equivalent to a live view camera
It is recommended to use it on a manual lens. If it is used on an automatic lens, since the focus and aperture of the current automatic lens are electronically controlled and cannot be adjusted, this lens cover is just a protective cover, which will lose the fun of playing.
The rear cover imaging film corresponds to the standard flange distance of the bayonet, which is equivalent to a 135 full-frame film on the camera.
You can directly observe the imaging of the lens, adjust the focus and aperture, and the imaging will change accordingly (focus from infinity of the lens to the nearest Focus distance, maximum to minimum aperture)

Notes:
The imaging is an inverted image! The digital camera just uses the program algorithm to correct the image

Package Includes:
1x Lens Cover