TO ENSURE LONG-TERM SATISFACTION
Avoid touching the glass element surface. Use a photographic lens cloth or a blower to remove dust from the lens element surface. When not using the lens, always place a lens cap on it for protection.
Use a lens cleaning tissue or lint cloth with a drop of cleaning solution to remove fin- gerprints or dirt on the glass lens surface with a rotary motion from the center to the edges.
Use a silicon cloth to clean your lens barrel only.
Mildew is an enemy of your lens. Clean the lens after shooting near water or in any humid place. Store your lens in a clean, cool, dry place. When storing your lens in a lens case, store it with commercially available drying agents such as silica gel, and change the agent occasionally. If you find mildew on your lens, consult an authorized repair shop or nearby photographic store.
Do not touch the
When using your equipment in an environment where the temperature changes from one extreme to another, make sure to put your equipment temporarily in a case or a plastic bag for a length of time in order for the equipment to go though a gradual temperature.
This will reduce potential equipment trouble.