Routine maintenance

■ lens cleaning of the lens

Prepare a mixture of 20% alcohol and 80% ether; Soft and clean cotton cloth or lens cleaning paper.

a. Use a blown ball to remove dust from the surface of the lens.

b. Fold the lens cleaning paper to a suitable size and soak it in the cleaning solution. Roll the wet part into a spiral and gently rotate the lens from the middle to the sides.

c. If the lenses are not wiped clean the first time, change to another piece of paper to wipe them as well. Repeat step 'b' until the lenses are completely clean.

■ Check the connecting cables

Carefully inspect the outer protective packaging and interfaces for scratches or other damage.

◇2 Remove moisture

If the lens is exposed to moisture in the air too much, dirt may develop on the surface of the lens that is difficult to remove, and the metal parts inside may rust. press

Follow these steps to remove moisture:

1. Wipe off moisture build-up on the outside of the lens. It is then sealed in a plastic bag with a desiccant that absorbs the remaining moisture.

2. After the moisture on the outside of the lens has been wiped off, if there is enough time, put the lens in a dry room to dehumidify.

Note. The time it takes for the lens to dry completely depends on the size of the lens, the degree of moisture adhesion and the amount of desiccant used. Anyway, built

It is advisable to keep the lens in the bag for at least 3 hours. For best results, use a new desiccant.

◇3 Preservation of lenses

After use, wipe the lens clean, close the lens cap, and place it back in the lens box. Safe storage should be away from high temperatures, humidity or corrosive gases or salts

Environment preservation. When not in use for a long time, the lens should be removed from time to time and dried.

◇4 Inspection

If there is an abnormality in the lens, please contact the purchasing agent.

In order to maintain the high performance of the product in the long term, it is recommended that you check it regularly, at least once a year.

Please note that we may not be able to inspect and repair products that have been modified by the user.