Canon EOS 1DX and auto focus

Started Feb 13, 2013 | Questions thread
Lemming51 Forum Pro • Posts: 14,568
download the manual, read the section on AF, p. 65-107

fishingcurmudgeon wrote:

If this has been discussed elsewhere, please excuse me and rout me in that direction.

Perhaps I don't understand, but the 1DX reviews point out that the camera will not auto focus at f 5.6, f4.0, f3.5, etc., even so the 61 point focus points. If so, why is this a good camera for me to photography birds if I have to manually focus my 300 mm f 2.8 and 70-200 mm f2.8 lensesdoen

especially pp. 75-81.

Your 300/2.8L and 70-200/2.8L are both "Class A" lenses that are usable with all 61 AF sensors, including the dual-cross and high precision sensors.

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