| While this lens is compatible with any EOS SLR, film or digital, the electronics supporting the AF are optimized for outstanding responsiveness and performance in Canon’s newest camera bodies.
Lens optimization for the newest 61-point AF array will NOT compromise performance with any of the earlier EOS camera bodies. |
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| Ring-type ultrasonic motor |
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| Incredibly fast AF operation |
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| Features Driving AF Performance |
- Ring-Type Ultrasonic Motor
- Allows for incredibly fast and silent
AF operation
- AF possible at extremely wide range of rotational speeds
- Allows simultaneous use of AF and manual focus
- Provides nearly instantaneous AF start and stop
- Draws minimal power from the battery
- Completely Upgraded In-Lens Electronics:
- New lens Central Processing Unit
- Enhanced communication speed to and from camera
- Superior fine control of ring-type Ultrasonic focus motor
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