Zoom Ring - Canon EF70-300mm F4-5.6 IS USM Instruction

3. Hood (Sold separately)
The ET-65B hood reduces annoying flare and
also protects the front of the lens from rain,
snow, dust, etc.
To attach the hood, connect the hood's tabs to
the hood attachment tabs on the front end of the
lens, then turn the hood clockwise to secure it.
The hood can be reverse-mounted on the lens
for storage.
¡The front end of the lens rotates, so hold it when
attaching the hood.
¡Part of the picture may be blocked if the hood is
not attached properly.
¡When attaching or detaching the hood, grasp
the base of the hood to turn it. To prevent
deformation, do not grasp the rim of the hood to
turn it.
4. Zooming
To zoom, turn the lens' zoom ring.
Be sure to finish zooming before focusing.
Changing the zoom ring after focusing can affect
the focus.
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