topic Re: Canon EOS 1D MK11 in EOS DSLR & Mirrorless Cameras

Canon EOS 1D MK11

ABBOTALE — Thu, 21 Jun 2018 10:23:22 GMT

The camera was working fine as my backup camera THEN over night it wont focus in AF? Viefinder is sharp but photos blurred it has the same settings as my 1DS M11 so i dont know Does the CMOS Battery have any effect it hasn't been dropped or knocked ..

Re: Canon EOS 1D MK11

ebiggs1 — Thu, 21 Jun 2018 14:20:25 GMT

" Does the CMOS Battery have any effect..."

I guess you mean the button back-up battery? If so the 1D Mk II will work with or without that battery. All it does is keep the time and date. Unfortunately anything made by the hand of man can and will eventually fail. You need to try another lens or two. It is the lens that focuses not the camera. However, the camera has to tell the lens to focus.

Other than the AF, it is working OK?

Re: Canon EOS 1D MK11

ABBOTALE — Thu, 21 Jun 2018 15:57:06 GMT

I have tried all my lenses even on manual focus sharp in viewfinder photo not in focus like i said t was fine the day before .I know on the 7D MK1 if you took the CMOS battery out it reset the camera so it would focus ? The conacts are clean on camera and lenses ?.

Re: Canon EOS 1D MK11

RobertTheFat — Thu, 21 Jun 2018 16:00:29 GMT

Some older or cheaper lenses can be jammed or damaged if you try to focus them manually while they're set to AF. If the problem occurs only with one particular lens, that might be a starting point for investigation.

Re: Canon EOS 1D MK11

RobertTheFat — Thu, 21 Jun 2018 16:05:02 GMT

@ABBOTALE wrote:
I have tried all my lenses even on manual focus sharp in viewfinder photo not in focus like i said t was fine the day before .I know on the 7D MK1 if you took the CMOS battery out it reset the camera so it would focus ? The conacts are clean on camera and lenses ?.

Does that camera have a "live view" mode? If so, and if the problem doesn't occur in live view, there may be something wrong with the viewfinder's AF. The two mechanisms are almost totally separate.

Re: Canon EOS 1D MK11

ebiggs1 — Thu, 21 Jun 2018 16:32:13 GMT

"Does that camera have a "live view" mode?"

No it doesn't. It is well before that feature.

Re: Canon EOS 1D MK11

ABBOTALE — Thu, 21 Jun 2018 16:35:18 GMT

As i said all my lenses are working fine 70-200mm l usm f/2.8 100-400mm l usm 24-70mm f/2,8 i also have a IDS MK11 and 7D MK1 so i know it's not the lenses

Re: Canon EOS 1D MK11

ABBOTALE — Thu, 21 Jun 2018 16:36:47 GMT

No live view on the Canon EOS 1D MK11

Re: Canon EOS 1D MK11

ebiggs1 — Thu, 21 Jun 2018 19:06:18 GMT

"Viefinder is sharp but photos blurred ..."

The eyepiece viewfinder is showing you what the lens sees. So, now I wonder if you don't have a setting off. Like a slow shutter speed for instance?

Re: Canon EOS 1D MK11

Stephen — Thu, 21 Jun 2018 19:20:01 GMT

Just a thought - could it be an accidental diopter adjustment?

If you're using manual focus, and your images look in focus through the viewfinder, but they're not in focus when you review them, it's my experience that the diopter is maladjusted.

Make sure you have a lens that's verified as working, and in Auto Focus, and put the camera in an "Automatic" mode. Do step 1 below. Focus on something (wait for the confirmation beep), and then do step 2 below.

Re: Canon EOS 1D MK11

ebiggs1 — Thu, 21 Jun 2018 20:02:19 GMT

"...could it be an accidental diopter adjustment?"

I rather doubt it. If the diopter is maladjusted nothing would be clear. OP claims good focus through the viewfinder.

Re: Canon EOS 1D MK11

ebiggs1 — Thu, 21 Jun 2018 20:03:53 GMT

Other than the AF, it is working OK?