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EOS 50D

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EOS 50D

EOS 50D

FAQ ID: L00000104
Last modified: 22-Feb-11


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:

CamerasLenses
EOS 7DEF 35-80mm f/4-5.6
EOS 40DEF 35-80mm f/4-5.6 II
EOS 50DEF 35-80mm f/4-5.6 III
EOS 60DEF 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


 

Helpful Information:

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.

 

Solution:


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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