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Canon 200-400mm f4 + 1DX AF question

Started Jun 14, 2019 | Questions thread
BlueRay2 Forum Pro • Posts: 14,816
Re: Canon 200-400mm f4 + 1DX AF question

SandyHill wrote:

Can any users of the 200-400mm f4 & 1DX answer the following question.

Using the 200-400mm f4 with the 1.4x engaged on a 1DX, has anyone experienced any issues when the autofocus will not activate if the lens is set at the start to around the 3-4m mark on the focus scale. Full is selected on the focus limiter.

Firmware is the latest in the lens and camera

Any clues as to what is going wrong would be very much appreciated

as they say, when all else fails, i read the manual and if it is a crucial question, i'd call canon as i understand, not many use this lens due to price, weight and many other reasons, not as much as other canon's big white primes! good luck.

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You miss 100 percent of the shots you didn't take!!! "Wayne Gretzky"

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