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15. Drop-In Filters
A 52(WII)-series drop-in gelatin ﬁlter holder with
a glass ﬁlter is included with the lens. The drop-
in ﬁlter holder can be used ﬁtted with a gelatin
ﬁlter (sold separately).
<Installing and Removing>
To remove the drop-in ﬁlter, press in the left
and right lock buttons and pull the ﬁlter holder
straight up out of the slot.
To install the drop-in ﬁlter, push the ﬁlter holder
straight down into the slot until it clicks into place.
The ﬁlter holder can be installed facing either
forwards or backwards.
The Drop-In Screw-Type Filter Holder 52(WII) and
Drop-In Circular Polarizing Filter PL-C52(WII) are
also available (sold separately).
Because the lens optics are designed to include a
glass ﬁlter, you must always install the ﬁlter holder,
even if no gelatin ﬁlter is ﬁtted.
Lift up the holder’s retaining plate.
Cut the gelatin ﬁlter as shown and mount it in
Return the retaining plate to its closed
<Using a Gelatin Filter>