Issue with the 1DX - No shutter half press, no beep

Weirdest thing. 1DX comes back from CPS with back button AF enabled.

Put AF and exposure on to the shutter button again but I've lost the half press. It just focuses and shoots immediately. For example, I can't focus and recompose, it just shoots.

I'm a bit stumped, can anyone help? Essentially I cannot get focus lock. It just focuses and fires away.

It must be in Servo AF mode.

No it's in one shot af.

I dont know about the 1Dx, but there are lots of permutations on other canon models. When you go to the menu that assigns the custom function anything that occurs on either side of the slash goes that button. Perhaps you just need to select another setting.

Try a factory reset. Sounds like its in Servo AF or AI mode despite what you say it's set to. Factory reset may clear it, and will certainly resolve any confusion. Had to do this once with my 5D3. Good luck, if not, back to CPS.

I've tried using it in AI servo mode too. No half press, just clicks away.

I reset the settings in the menu. Pulled the battery and the button battery but it appears to of kept it's settings.

Is there a hard reset procedure?

Is the grip shutter button doing the same thing, or is it working properly?

To me it sounds like some short circuit in the trigger button assembly.

kawi_200 wrote in post #16936846
Is the grip shutter button doing the same thing, or is it working properly?

Excellent point...goes to check the camera... Yep, same outcome on both buttons unfortunately.

I can use AF-on to focus and compose but as someone who shoots manually it's tricky to change stuff on the fly at the same time.

Gel wrote in post #16936782
I've tried using it in AI servo mode too. No half press, just clicks away.

I reset the settings in the menu. Pulled the battery and the button battery but it appears to of kept it's settings.

Is there a hard reset procedure?

there's a "clear all camera settings" page 58 in the manual, if still fails after that then I suspect it's a trip to Canon to get it looked at...

Talk to CPS, as it seems that they have created your problem.

Sounds like CPS or someone might have programed the shutter button to meter only and not focus and meter. The back button is probably programmed for focus only. Check the Custom Controls for all the buttons on the 1Dx and see if the shutter button is meter only. I don't have the manual in front of me or I could give you the page number.

Can you explain why you are focusing and re-composing with the 1Dx? Do you not trust all 61 focus points? Why are you not manually moving the focus point onto your subject and then taking the picture. I have never focus/recompose ever. I own the 1Dx and can attest to the accuracy of all the focus points and not just to the center point. Did you own a 5D II at one time? Just curious.

Gel wrote in post #16936782
I've tried using it in AI servo mode too. No half press, just clicks away.

I reset the settings in the menu. Pulled the battery and the button battery but it appears to of kept it's settings.

Is there a hard reset procedure?

Custom functions do not get reset with standard factory reset "clear all camera settings"., you also need to clear all custom functions, (shoudl be a option in the CF settings) or go through the CF settings one by one to find the culprit.

On the 5D3 this is all in CF function set labeled Customization" or something like that. Don;t have mine in front of me, so can't recall exactly.

But there's no custom function which will trigger the shutter button at half-press. Unless it actually is full-press, and what should have happened at half-press isn't happening.

Which CPS center did you send it to?