topic Re: Canon 7D Mark II 65-point automatic selection AF issue in EOS DSLR & Mirrorless Cameras

Canon 7D Mark II 65-point automatic selection AF issue

nefethael — Sun, 14 Jan 2024 14:51:16 GMT

Hi everyone,

A little background to start this thread, I had a Canon 7D markII since May 2023 with Sigma 150-600C then I got robbed in december so I just buy once again a second-handed Canon 7D markII with Sigma 150-600C.

Yesterday, I went for bird spotting and I usually use single-spot AF or 65-pt autoselect with initial center point for birds in sky. With my previous setup, I had no issue with those two AF modes, but the "new" 7d is not working fine.

In fact, when I try to get focus with 65pt mode, AF starts at current lens position then moves until it reaches infinity without getting focus.

I tried
- every AF settings (priority, speed vs focus, ...)
- same mode with a Canon 55-250mm
- resetting all settings
- firmware update
- iTR ON/OFF

and problem is still here.

This morning, I was just trying to get focus on the top of a tree at 20 meters, with gray sky behind, with 65pt mode, I had to redo focus at least 10 times to get it 😕
Note that every other AF modes are working fine and when I get focus with 65pt mode, it is also working fine to follow the object.

Any idea of what is going wrong? could it be a faulty 7d body?
Thanks by advance for any help,

Vincent

Re: Canon 7D Mark II 65-point automatic selection AF issue

Waddizzle — Sun, 14 Jan 2024 19:42:41 GMT

Use a bulb air blower to clean out the mirror box, particularly the AF sensor at the bottom of it.

If this is a used camera body, then have you gone through the menus and fully reset every item with a sub-menu back to its factory defaults. You want the camera to be in a known state.

If your camera does not function properly in Green[A+] mode with any of your lenses, then there is likely something wrong with the camera body.

Re: Canon 7D Mark II 65-point automatic selection AF issue

nefethael — Mon, 15 Jan 2024 07:18:02 GMT

I'll try to clean the AF sensor part today, thanks for the tip!

(I did a factory reset indeed)

Re: Canon 7D Mark II 65-point automatic selection AF issue

nefethael — Mon, 29 Jan 2024 11:46:46 GMT

Hello,

The "bulb air blower to clean out the mirror box" solution seems to work for me, I don't have anymore issues with AF,

Thanks Waddizzle!