Phase One 645 AF - Manual (Page 101)

101
11.5 Lens maintenance
Never touch the inner optics of the lens with your fingers, keep the
inneroptics perfectly clean with air, lens brush or the dry cloth delivered
with the lens.
Do not touch the contacts; keep the contacts clean, either by dry cloth
or by using fiberglass brush, do not use tools of any kind on the lens.
The lens is not waterproof, if wet it should be dried with a cloth, if
exposed to salt, moisten a cloth, wring it and clean.
11.6 Back Maintenance
Cleaning the CCD
When the Phase One P+ back is not attached to a camera, the camera
back must be protected with the protection plate. However, over time
dust may accumulate on the IR filter. This will degrade the image quality
if not removed.
Please follow the directions included in the CCD cleaning kit in the P+
back suitcase.