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New Contributor
Posts: 1
Registered: ‎09-23-2015

canon t5 autofocus engages when lens is switched to manual focus

I have a student who is using a canon t5.  She is attempting to use manual focus when shooting, but even with the lens switched to MF, the autofocus is activitating and refocusing on the nearest object.  This is happenining intermittently.

 

I bellieve it might be a problem with the switch on her lens, but want to know if it could be something else before asking her to take her camera back to B+H.  It is a new camera and it hasn't been damaged at all.

 

Thanks!

 

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Honored Contributor
Posts: 6,822
Registered: ‎11-13-2012

Re: canon t5 autofocus engages when lens is switched to manual focus

If its new don't even hesitate to take it back.

John Hoffman
Conway, NH

1D X Mark III, Rebel T5i, Many lenses, Pixma PRO-100, MX472, LR Classic
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VIP
Posts: 12,884
Registered: ‎12-07-2012

Re: canon t5 autofocus engages when lens is switched to manual focus

Hold on there!

Try another, different, lens first.  You need to find out which is at fault.  The camera, the lens or her. Smiley Happy

Make sure the lens is not in IS mode when you mount or dis-mount it.  The lens is clicked completely on the camera?

EOS 1DX and 1D Mk IV and several lenses!
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Esteemed Contributor
Posts: 3,845
Registered: ‎06-11-2013

Re: canon t5 autofocus engages when lens is switched to manual focus

The "AF/MF" switch on the side of the lens barrel is the ONLY way to enable or disable auto-focus.  There are no secret menu options if that's what you were wondering.

 

As Ernie suggests... do make sure the lens barrel is correctly seated on the camera mounting flange and rotate the bayonet mount so that it locks (clicks) in place -- just to be sure something isn't misaligned.)  

 

If you're convinced it's properly mounted (that's not hard to do so I would be surprised if that's the issue) and if the switch genuinely is in the "MF" position, then something is wrong that would require service.  But if this is a very new camera (recenlty bought within the stores return policy) then I"d exchange it -- the customer shouldn't have to go through a warranty process on a product fresh from the store.

 

Good luck!

 

 

Tim Campbell
5D III, 5D IV, 60Da
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