Please help us improve our service by completing a short survey based on your experience of the Canon Support website.

Complete the survey Topic

No, thank you Topic

Do not show again


Find FAQs

Print  Print this information



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

FAQ: 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.

Affected products:

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.



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 modelsClick here to close the applicable models list

Did this article answer your question?