Peripheral AF points operation limitation with certain EF lenses
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.
|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.
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