Hood Mount - Canon EF 400mm f/2.8L IS USM Instructions Manual

11. Hood
The special hoods that come with all these
lenses cut out unwanted light and protect the
front of the lens from rain, snow, and dust.
To attach the hood, loosen the hood lock knob
by turning it counterclockwise. Fit the hood onto
the lens's hood mount, and tighten the lock knob
to fix it in place. Use the same procedure, in
reverse, to remove the hood.
12. Case
Strap
Keyhole
Put the lens away as follows.
Reverse the lens hood, slip it over the lens,
and attach the lens cap.
Position the tripod mount straight upwards as
shown and place it in the case.
Fasten the lens securely with the strap.
Push the lever while holding the lid from
above to lock.
Lid
Lever
ENG-15