The camera handpiece should be cleaned with Isopropyl Alcohol on a damp cloth.
To clean the lens, use Isopropyl Alcohol on a damp cloth or Q-tip and gently wipe in a forward motion not to scratch the lens, DO NOT submerge the handpiece. (Over-saturating or use of abrasive cleaners such as gluderaldahyde will damage the lens and void your warranty.)
Sheath instruction Literature
To focus the camera, simply slide the narrow end of the handpiece in or out.
All the way in:
Can give you up to ½ Molar image
All the way out:
Can provide you with Full Face image