Canon EF 400mm f/2.8L IS USM User Manual (en)

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ENG-16
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).
13. Drop-In Filters
14mm
14mm
47mm
47mm
<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.
<Using a Gelatin Filter>
The Drop-In Screw-Type Filter Holder 52 and Drop-
In Circular Polarizing Filter PL-C52 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
the holder.
Return the retaining plate to its closed
position.
02-7524_ENG  10.2.13 9:39 AM  Page 16
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