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107

Precautions and care instructions

CARE INSTRUCTIONS

As any soiling also represents a growth medium for microorganisms, you

should take care to keep the equipment clean.

FOR THE CAMERA

• Only clean the camera with a soft, dry cloth. Stubborn dirt should ﬁrst of

all be covered with a well-thinned cleaning agent and then wiped oﬀ with

a dry cloth.

• To remove stains and ﬁngerprints, the camera and lens should be wiped

with a clean lint-free cloth. Tougher dirt in hard to reach corners of the

camera body can be removed with a small brush. The shutter blades may

not be touched when doing this.

• All mechanically operated bearings and sliding surfaces on your camera

are lubricated. Please remember this if you will not be using the camera

for a long period of time. To prevent the lubrication points becoming

gummed up, the camera shutter should be released a number of times

every three months. It is also recommended that you repeatedly move

and use all other controls. The range and aperture setting dials on the

lens should also be moved periodically.

• Take care not to scratch the sensor for the 6-bit coding in the bayonet

mount (see p. 81), or to get it dirty. Take care also that no grains of

sand or similar particles enter the fastening, where they could scratch

the bayonet. Only clean this component when dry and do not exert any

pressure on the glass cover.

FOR LENSES

• Normally, a soft hair brush is suﬃcient to remove dust from the outer

lens elements. However, in case of more stubborn dirt, they can be

carefully cleaned with a very clean, soft cloth that is completely free of

foreign matter, using circular motions from the inside to the outside. We

recommend micro-ﬁber cloths (available from photographic and optical

specialists) that are stored in a protective container and can be washed

at temperatures of up to 40°C/104°F (without fabric softener, never

iron!). Cloths for cleaning glasses, which are impregnated with chemicals,

should not be used as they can damage the lens glass.

• Take care not to scratch the 6-bit coding in the bayonet mount, or to get

it dirty. Take care also that no grains of sand or similar particles enter the

fastening, where they could scratch the bayonet. Never wet this

component when cleaning it!

• The bayonet is given an ultra-thin ﬁlm of grease in the factory to ensure

that the lens can be changed easily, gently and smoothly. In normal use,

this is retained for many years even if the bayonet is occasionally wiped

with a clean cloth. If a substance that dissolves grease is used for

cleaning, the grease ﬁlm must subsequently be replaced. To do this, coat

the bayonet with a tiny amount of Vaseline with a ﬁnger and spread using

a clean cloth.

Important:

Make sure that the bayonet is not excessively lubricated with grease and

particularly that the area of the lens identiﬁcation is clear, as grease residue

can accumulate in the gap and collect further dirt. This could impair the

legibility of the code and thus restrict camera functions on digital M models.

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