Is anyone experience "back button focus" issue like this?

Started 4 months ago | Questions thread
WayneDST
OP WayneDST Forum Member • Posts: 52
Re: Is anyone experience "back button focus" issue like this?

Thanks for the input! Let me explain more about my case,

I didn't change the halfway shutter AE or AF function to off. I only set the function key - by setting the AE-L button as AF-on. As my thought, the shutter halfway pressed AF should be automatically off. However, my feeling is that the halfway AF is around 90% off. Another 10%, AF will be trigger by halfway pressed the shutter button. (I can hear the noise made by the AF motor)

I know it's not standard way to do auto focus. However it's good for using center af point to do the AF, then re-conposition, and then halfway press shutter button to do AE for final composition. (Moving af point by joystick takes more time.)

Set af-on on the AE-L button

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