Drop-In Filter - Canon EF 400mm f/2.8L IS USM Instructions Manual

13. Drop-In Filters
A 52-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.
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.
<Using a Gelatin Filter>
Lift up the holder's retaining plate.
Cut the gelatin filter as shown and mount it in
the holder.
Return the retaining plate to its closed
position.
The Drop-In Screw-Type Filter Holder 52 and Drop-
In Circular Polarizing Filter PL-C52 are also
available (sold separately).
14mm
14mm
47mm
47mm
ENG-16