Out of 2 Ratings

Owner's of the Canon Camera Lens 2578A002 gave it a score of 4.2 out of 5. Here's how the scores stacked up:
  • Reliability

    4.0 out of 5
  • Durability

    5.0 out of 5
  • Maintenance

    4.0 out of 5
  • Performance

    5.0 out of 5
  • Ease of Use

    3.0 out of 5
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9. Using the Tripod Mount (Sold separately)
Adjusting the Revolving Mount
This lens can be used with the A II (W) tripod mount ring, sold separately.
You can loosen the orientation lock-knob on the tripod mount to allow it to rotate as needed to fit a
particular camera model for switching between vertical and horizontal positions.
Use the following procedures to remove and attach the tripod mount.
Turn the locking knob
counterclockwise until it
becomes loose (about 3
turns), and pull the knob in
the direction of the arrow to
release the collar.
With the collar open,
remove the tripod mount.
To install, while pulling the
locking knob, bring the collar
to the original position, and
tighten the locking knob
The tripod collar can be attached to or detached from the lens while the lens is attached to the camera.