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t6i won't focus through viewfinder at times

chebo
Apprentice

Sometimes, the camera won't focus through the viewfinder.  To get it to work, I either have to switch between LiveView and then switching back to focusing through the viewfinder or pressing the Depth Of Field Preview Button.

I've used 2 different lenses and even reset the camera settings, but the issue still continues.

It's a minor problem, but is there anyway to fix this?

3 REPLIES 3

ScottyP
Authority

Not the lenses because both do it.  The DOF preview button might unstick an aperture blade but it isn't a lens thing. 

 

Maybe be a dirty or damaged connection?  Switching to live view and back and pressing the DOF button are not logically related that I can see so maybe they are working as the equivalent of banging on the camera to remedy a bad connection. Etween lens and camera. 

Scott

Canon 5d mk 4, Canon 6D, EF 70-200mm L f/2.8 IS mk2; EF 16-35 f/2.8 L mk. III; Sigma 35mm f/1.4 "Art" EF 100mm f/2.8L Macro; EF 85mm f/1.8; EF 1.4x extender mk. 3; EF 24-105 f/4 L; EF-S 17-55mm f/2.8 IS; 3x Phottix Mitros+ speedlites

Why do so many people say "FER-tographer"? Do they take "fertographs"?

Thinking of things involved in viewfinder focusing.   See if mirror is dirty or if focus screen is dusty or misaligned/loose or scratched. 

Scott

Canon 5d mk 4, Canon 6D, EF 70-200mm L f/2.8 IS mk2; EF 16-35 f/2.8 L mk. III; Sigma 35mm f/1.4 "Art" EF 100mm f/2.8L Macro; EF 85mm f/1.8; EF 1.4x extender mk. 3; EF 24-105 f/4 L; EF-S 17-55mm f/2.8 IS; 3x Phottix Mitros+ speedlites

Why do so many people say "FER-tographer"? Do they take "fertographs"?

I can get it to manual focus by half pressing the shutter button too.  It's under  warranty, so I can just get it fixed.

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