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10.5 Lens Maintenance
Never touch the inner optics of the lens with your ngers. Keep the inner
optics perfectly clean with air, a lens brush or the dry cloth delivered with
the lens.
Do not touch the contacts. Keep the contacts clean with either a dry cloth or
by using a breglass brush. Do not use any other tools on the lens.
The lens is not waterproof. It should be immediately dried with a cloth if
becomes wet. If it is exposed to salt, moisten a cloth, wring it and carefully
clean.
10.6 Back Maintenance
Cleaning the CCD
The Phase One IQ back must have the protection plate tted when it is not
attached to a camera. Dust may accumulate on the IR lter, which will degrade
the image quality if not removed. Please follow the directions included in the
CCD cleaning kit that came with the IQ back.
10.7 IR Filter on the CCD
The IR lter (Infrared reduction lter) is permanently mounted on top of the
CCD. The lter may not be removed for several reasons:
• The focusing of the IQ back camera back will be damaged
• It is only possible to remount the lter without dust getting in between the
lter and the CCD if you have access to special clean room facilities
• The Phase One Product Warranty is terminated
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