Maintenance Precautions
PERCAUTIONS
Avoid touching the lens surface and apply lens cloth or air blow to
remove dust from it. Close the lens cap when it is not in use.
Gently remove any dirt and fingerprints by rubbing the lens surface
in spiral motions (from center to the periphery) with lens tissue or
cleaning cloth.
When the lens is taken from a cold environment into a warm one,
condensation may develop on the surface and internal parts of the
lens, so moisture protection should be taken when transferring.
Because of the protruding front and rear elements, make sure the
lens is placed horizontally with the lens cap on.
①Aperture ring
② Depth-of-field scale
③Focusing ring
④ Distance scale
⑤Thumb lever
⑥Lens mounting mark
Nomenclature
Summary of Contents for MFT 4mm F2.8 210 CIRCULAR FISHEYE
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