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Tripod Mount - Canon EF135mm F2L USM Instruction

Ef lens built-in ultrasonic motors
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When compensating for the
focusing difference, set the
focus mode switch to MF and
use the focusing ring.
The position of the infrared
mark is based on a
wavelength of 800 nm. The
proper position of the infrared
mark may differ slightly
depending on the infrared film
used. Taking several shots
and shifting the distance
setting to a slightly different
position each time is
Also read the instructions that
came with the infrared film.
Infrared film cannot be used
with certain EOS camera
models. Read the camera's

9. Tripod Mount

(for EF 200mm f/2.8L II USM, EF 300mm f/4L USM,
and EF 400mm f/5.6L USM lenses)
The EF 300mm f/4L USM lens and EF 400mm f/5.6L USM lens
come with a tripod mount. When the camera is attached with either
lens and it is to be mounted on a tripod, use the lens' tripod mount
instead of the camera body's tripod socket.
If using the EF 200mm f/2.8L II USM lens with an extender or
extension tube, use a ring-type tripod mount A (B) (sold separately)
to mount it on a tripod.
Using the lens' tripod mount gives better balance and stability on a
tripod. By loosening the tripod mount's lock nut, the camera can be
revolved for vertical or horizontal picture conposition.
Be sure to tighten the tripod mount before removing the camera
when using a tripod.

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