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August 19, 2019, 01:38:25 PM

Author Topic: AF/MF switch does not work on EF-S 10-22  (Read 20819 times)

Offline merguden

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AF/MF switch does not work on EF-S 10-22
« on: October 13, 2013, 06:29:35 AM »
EF-S 10-22mm AF/MF switch does not work and lens stuck on AF mode. Switch moves back and forward but even on MF mode the lens acts as AF.
The other EF-S lenses on act normal on my T2i so its the 10-22.
Anyone experienced something like this? Is it easy to fix? If I open the mount part, can I reach to the switch easy?
Any recommendations are appreciated.

Offline AndyCivil

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Re: AF/MF switch does not work on EF-S 10-22
« Reply #1 on: October 13, 2013, 09:36:52 AM »
It sounds like you've diagnosed it correctly, but as an additional check, with the camera in P mode, it should show the AF status on the screen (MF or ONE-SHOT*) reflected live as you move the switch.

I'll be honest, I don't think that's a user fixable problem (even an enterprising user) and that's from someone who fixes whatever he can, and removes "guarantee void if removed" stickers for amusement. I wouldn't trust myself to be able to remount the glass parts inside accurately enough... Having said that, I know that some people on here have replaced broken mount rings successfully with a kit from eBay.

It's a six hundred dollar lens; I think I'd either accept to use it always in autofocus, or send it in for repair.

If you are faced with living with full time autofocus, have you considered looking at "back button focus" which gives you more control over the autofocus feature? Many of the pros on here use it, because you can focus once, then take multiple shots without the autofocus 'taking over' and changing what you wanted.

* or maybe something else, if you've selected it, I'm not sure.

Offline zubbuz

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Re: AF/MF switch does not work on EF-S 10-22
« Reply #2 on: October 13, 2013, 12:03:44 PM »
Further Andys comment - if you use back button focus, since the Canon 10-22 is a full time manual focus lens you can easily use it with MF without switching it to that.

Using BBF would be important though because you wouldn't want the half shutter press to interfere with your manual focusing. I'm not saying this is a good solution to your problem, it is more of a work-around until you get it fixed (if you bother). Personally as well, once I started using BBF, I always find it so clumsy going back to half-press shutter focus...
You are young. Life has been kind to you. You will learn.

Canon 18-55mm f/3.5-5.6 / Canon 55-250mm f/4-5.6 IS II / Canon 10-22mm f/3.5-5.6 / Canon 50mm f1.8 / Rokinon 8mm 3.5 / Yongnuo YN-468 II