Filter Mounting Thread - Canon EF24-105mm F4L IS USM Instruction

9. Filters (Sold separately)
You can attach filters to the filter mounting
thread on the front of the lens.
¡Only one filter may be attached.
¡If you need a polarizing filter, use Canon's PL-C
77mm ll polarizing filter.
¡To adjust the polarizing filter, first remove the
lens hood.
¡When the PL-C 77mm ll polarizing filter is
attached, the lens cap cannot be attached.
10. Gelatin Filter Holder (Sold separately)
With the Gelatin Filter Holder, you can use filters
to create various effects.
The Gelatin Filter Holder compatibility is shown
below.
¡Gelatin Filter Holder lll:
Incompatible
¡Gelatin Filter Holder lV:
Compatible (lens hood cannot be used)
ENG-10