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Tuesday, 1 March 2011

AF points issue with eight early EF lenses

When using any of eight zoom lenses listed below with the EOS 7D, 40D, 50D or 60D 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. This is due to the optical characteristics of the camera’s AF sensor and lens. EF35-80mm F4-5.6
EF35-80mm F4-5.6 II
EF35-80mm F4-5.6 III
EF35-80mm F4-5.6 USM
EF35-105mm F4-5.6
EF35-105mm F4-5.6 USM
EF80-200mm F4.5-5.6 II
EF80-200mm F4.5-5.6 USM
These lenses were all released between 1990 and 1995.

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