topic Re: Has any one else had problems with the EOS 7D MKII back focus button? in EOS DSLR & Mirrorless Cameras

Has any one else had problems with the EOS 7D MKII back focus button?

Hugh_T — Mon, 11 Apr 2016 06:33:57 GMT

I upgraded from the 7D to the MKII last year and all went fine until a few weeks ago. Now, when I use back button focus, the focus point jumps to the centre while focusing then back to the point I chose. This doesn't happen if I assign the AE lock button to focusing but I prefer to use both independantly.

I'm fairly sure I may have change something in the settings but can't locate it. The other option is a hardwear fault.

I'm sure there's a genius out there with an answer.

Re: Has any one else had problems with the EOS 7D MKII back focus button?

ebiggs1 — Mon, 11 Apr 2016 13:07:38 GMT

Set it back to factory defaults. In the menu "Clear all settings". Then start all over.

Re: Has any one else had problems with the EOS 7D MKII back focus button?

RobertTheFat — Mon, 11 Apr 2016 14:03:41 GMT

@ebiggs1 wrote:
Set it back to factory defaults. In the menu "Clear all settings". Then start all over.

Yeah, you're probably right; it's the expedient action. But I can understand why Hugh was hoping that someone could come up with the exact setting that got munged. Recovering from "Clear all settings" can be a tedious process.

Re: Has any one else had problems with the EOS 7D MKII back focus button?

Hugh_T — Mon, 11 Apr 2016 18:53:03 GMT

"Set it back to factory defaults. In the menu "Clear all settings". Then start all over."

That was one of the first things I tried. Unfortunately the MKII backup battery is internal so I'm not able to do a full reboot.

Re: Has any one else had problems with the EOS 7D MKII back focus button?

ebiggs1 — Mon, 11 Apr 2016 19:19:54 GMT

The internal battery should only keep things like the date and time set, etc. Clear all settings and perhaps Clear all Personal settings should do it. I have sold my 7D and I don't have a 7D Mk II so I am unfamiliar with the exact menus. Somebody else (Bob from Boston) should be able to tell you exactly how.

Re: Has any one else had problems with the EOS 7D MKII back focus button?

cicopo — Tue, 12 Apr 2016 00:47:56 GMT

I'm pretty sure you've set it to do that & can reverse that setting in one of the AF menus. Get your manual out & read up on just what you want it to do & you'll likely find where you went wrong.

Re: Has any one else had problems with the EOS 7D MKII back focus button?

cicopo — Tue, 12 Apr 2016 12:57:41 GMT

One more thought to check. Does it do the same thing in both One Shot & AI Servo? Maybe you switched between them to have it react as it now does.