topic Re: 5d mk iv with 70-200 in EOS DSLR & Mirrorless Cameras

5d mk iv with 70-200

Lfourn15 — Thu, 28 Sep 2017 18:24:02 GMT

I have a 5d mk iv and a 70-200 lens. When I try to take a photo, the shutter won't work and the lens will not focus. It basically won't do anything. It only happens sometimes. If I take the lens off and put it back on, it will usually work again. Has anyone else had this issue?

Re: 5d mk iv with 70-200

RobertTheFat — Thu, 28 Sep 2017 18:40:12 GMT

@Lfourn15 wrote:
I have a 5d mk iv and a 70-200 lens. When I try to take a photo, the shutter won't work and the lens will not focus. It basically won't do anything. It only happens sometimes. If I take the lens off and put it back on, it will usually work again. Has anyone else had this issue?

A wild (but not entirely implausible) guess would be that you're too close to the subject. Note that the 70-200 has two ranges, with a switch to choose between them. If you're too close, the lens can't focus, and the shutter won't fire.

Re: 5d mk iv with 70-200

Lfourn15 — Thu, 28 Sep 2017 18:49:50 GMT

Thank you, I will keep this in mind. I have tried moving further away from the subject, it doesn't seem to make a difference.

Re: 5d mk iv with 70-200

Waddizzle — Fri, 29 Sep 2017 04:36:15 GMT

Sounds like something is bad. Try a different lens. Is the 70-200mm a Canon lens?

Re: 5d mk iv with 70-200

Lfourn15 — Fri, 29 Sep 2017 10:01:39 GMT

My 24-70 works with no issues. The 70-200 is a canon lens.

Re: 5d mk iv with 70-200

Waddizzle — Sat, 30 Sep 2017 09:20:44 GMT

If the 70-200 does not work, but a 24-70mm does, then it sounds like your 70-200mm needs service.

Re: 5d mk iv with 70-200

ebiggs1 — Sun, 01 Oct 2017 14:50:31 GMT

"I have a 5d mk iv and a 70-200 lens."

It sounds like you have a new 5D Mk IV. But you didn't say if the 70-200mm is new? Where did it come from? Was it an old lens from a previous camera? If it was also a new purchase send it to Canon under warranty. Don't mess with it.

You tried you other lens a 24-70mm and it worked, right? Did you try the 70-200mm on a different camera? You need to!

Re: 5d mk iv with 70-200

Lfourn15 — Sun, 01 Oct 2017 17:00:05 GMT

I do have a new 5d mk IV. The 70-200 is about a year old. I bought them both new. I am having issues with the shutter using other lenses now also.
Someone mentioned a dof button that I could be triggering which locks the shutter. I use bbf, and I'm not sure if I'm hitting something without realizing it. It seems to be happening sporadically. If I turn the camera off and back on, or take the battery out, it seems to reset itself.

Re: 5d mk iv with 70-200

ebiggs1 — Sun, 01 Oct 2017 17:06:38 GMT

"If I turn the camera off and back on, or take the battery out, it seems to reset itself."

That part doesn't sound good. I would call Canon support.

Re: 5d mk iv with 70-200

Waddizzle — Sun, 01 Oct 2017 17:18:05 GMT

@Lfourn15 wrote:
I do have a new 5d mk IV. The 70-200 is about a year old. I bought them both new. I am having issues with the shutter using other lenses now also.
Someone mentioned a dof button that I could be triggering which locks the shutter. I use bbf, and I'm not sure if I'm hitting something without realizing it. It seems to be happening sporadically. If I turn the camera off and back on, or take the battery out, it seems to reset itself.

Hmm. Having BBF enabled changes things. Before you contact Canon, have you tried to take pictures in Green [A] mode?

You could be having an issue with BBF. Check your button programming. Using the Green [A] mode should disable any custom button programming. You may not have a button actually programmed to initiate AF.

Re: 5d mk iv with 70-200

Lfourn15 — Sun, 01 Oct 2017 18:47:06 GMT

I have sent an email to canon.
When the button stops working, I have changed it to [A] mode and it still does nothing. The only thing that seems to help is it if I shut it off take the battery out.
I'm going to check my button programming.

Re: 5d mk iv with 70-200

ebiggs1 — Sun, 01 Oct 2017 23:22:11 GMT

It isn't BBF or any other button.

"I have sent an email to canon."

You need to need to call Canon. They will ask you some questions.

Re: 5d mk iv with 70-200

Lfourn15 — Mon, 02 Oct 2017 00:09:47 GMT

Thank you for your help. I will call canon. I tried to use the camera tonight, the shutter continuously stopped working. There is definitely something wrong. I've only had the camera a month.

Re: 5d mk iv with 70-200

ebiggs1 — Mon, 02 Oct 2017 20:38:39 GMT

It is covered by warranty.

Re: 5d mk iv with 70-200

Lfourn15 — Mon, 02 Oct 2017 20:58:50 GMT

Thanks for your help! Canon said there is definitely something wrong, I've already exchanged it at the store and have a new one.