FAQ:
Peripheral AF points operation limitation with certain EF lenses
Details:
When using any of eight zoom lenses listed below released between 1990 and 1995 with any of the listed cameras, the peripheral AF points do not function as cross-type AF points resulting in vertical and horizontal lines not being simultaneously detected. Vertical or horizontal lines can only be detected separately.
Affected products:
Cameras
Lenses
EOS 7D
EF 35-80mm f/4-5.6
EOS 40D
EF 35-80mm f/4-5.6 II
EOS 50D
EF 35-80mm f/4-5.6 III
EOS 60D
EF 35-80mm f/4-5.6 USM
EF 35-105mm f/4-5.6
EF 35-105mm f/4-5.6 USM
EF 80-200mm f/4.5-5.6 II
EF 80-200mm f/4.5-5.6 USM
This is due to the optical characteristics of the camera’s AF sensor and lens. If the maximum aperture of the EF lenses and EF-S lenses other than the lenses above is up to f5.6, all of the AF points function as cross-type AF points, and both vertical and horizontal lines are simultaneously detected.
We would like to apologize for not including this information in the user’s manuals of the affected cameras.
Should you have any further inquiries, please contact our telephone support .
Click here to view all applicable models Click here to close the applicable models list
EOS 7D
EOS 40D
EOS 50D
EOS 60D
Did this article answer your question?
Back to FAQ List