You have the autofocus point moved to one side and not to the middle. The phase detection autofocus mechanism is broken (unlucky scenario)Ģ. There are a couple of possibilities that I can think of:ġ. That explains why it's possible that one works but not the other.

The liveview relies on contrast and the other on phase detection (PDAF). The liveview focusing mechanism and the viewfinder focusing mechanism are two separate functions. Manual Focus works though the view finder, as the T6i has full-time manual focus/ĥ) It still does not work when I choose those options - I presume you mean the AI servo menu?Ħ) Yes exactly the same conditions as when I was using the view finder, when i use the live view. it does not take the photo.ģ) No, the focusing motor does nothing unless it is in live view.Ĥ) Yes. Does it work if you turn that option off? What lens were you using? When you successfully used live view, were you the same distance from the subject as when you unsuccessfully tried to use the wrote:ġ) I do see the scene through the view finder.Ģ) the shutter does not click I get no feed back from the camera as though it is off. What exactly do you mean by 'would not capture anything'? Do you see the scene when you look through the viewfinder? Does the shutter click without recording an image? Does the focusing motor even try to focus? Does it work if you use manual focus? There may be an option to not take a picture if focus can't be achieved. I have removed the battery and put it back in, cleared setting and cleard the SD card what else could the problem be? Its at this point I recognised that the auto focus and image captruring only works when in live view as the camera would not capture anything when i looked through the view finder.

I've used it quite dilegently for the past few days as I've only had it a week, and after shooting some video in the cold (the only thing I can imagine that could have damaged it) I took it inside, removed the SD card and ediited my video, after 24 hours of not being used the camera was picked up again for another shoot, only this time it was for a photoshoot. My eos 750d isn't focusing or capturing photos when I use the view finder but captures in live view.

Canon 750D Focus Stacking