(1) Photographers should not disassemble the lens at will. If there is a problem, they should go to a specialized repair department for repair. Otherwise, the lens cannot be restored after disassembly, and it cannot be accurately adjusted. The damage to the lens will affect the image quality of the lens.
(2) Do not wipe the lens with rough and unclean objects.
(3) When brushing the lens surface with a lens brush, keep the brush clean and do not touch the brush with your hands. If the brush is dirty, it should be cleaned with alcohol in time.
(4) Do not add lubricating oil to the adjustment ring of the camera lens at will. This will prevent it from flowing into the lens and contaminating the lens surface.
(5) When not shooting, the lens focus ring should be adjusted to infinity, the aperture should be adjusted to full open, and the push-pull zoom ring and macro ring should be retracted to improve the lens's anti-vibration performance.
(6) When the camera lens is not used for a long time, it is best to store it in a glass sealed container with desiccant, or seal it in a plastic bag with desiccant.