5D MIII Focus problems,

[hippie]

Recently I seem to be getting a high number of out of focus images,

When I use the Camera shutter button It seems to auto focuses normal  in the viewfinder,  I take the picture & its out of focus,   

However if I use the canon shutter remote I get perfect pictures every time, It seems to make no difference with the camera mounted on the tripod so it's not camera shake that I first thought  !. 

I have done a full camera  reset which has not cured the problem    

I am using 300mm F4 L Prime, Camera settings AF case 4, center spot with 9 point setting, iso 1600, Shooting in AV mode or Manual  for BIF  mainly,

I have tried other case settings & still seem to get the same problem  

Am I missing something here or does my beloved 5D have serious problems?,  Its still under Guarantee,

Ian.   

[Steve Ward]

Is this regarding Astro work ... ?

Most cameras struggle to autofocus in the dark , even on the Moon .

[hippie]

Is this regarding Astro work ... ?

Most cameras struggle to autofocus in the dark , even on the Moon .

No this is not astro work,   This is BIF & landscapes general use photography I'm Doing,   

[hippie]

I have cured the problem?,  I had a brainwave to turn the camera of & firmly press the shutter several times, This seems to have solved the problem now Whoopie  .

A sticky shutter button seems to have been the problem .