General Precautions; Handling Precautions - Canon EF70-300mm f/4-5.6 IS II USM Instructions Manual

General Precautions

Handling Precautions

If the lens is taken from a cold environment into a
● ●
warm one, condensation may develop on the lens
surface and internal parts. To prevent condensation in
this case, first put the lens into an airtight plastic bag
before taking it from a cold to warm environment. Then
take out the lens after it has warmed gradually. Do the
same when taking the lens from a warm environment
into a cold one.
Please also read any lens related handling precautions
● ●
listed in your camera's instruction manual.
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