5Diii Mirror box and AF sensor

[chukronos]

I purchased a refurb'd 5D mkiii in June '13. We had just had a baby and I was too tired to mess with it for a few months and just continued using my Nikon on shoots. When I finally got around to messing with it I noticed that the right cross-type af point was a little off. I mainly use a 50mm at 2.0 - 2.2 so it wasn't a big deal and I could get around it. Recently, I have been using 85L lens. Below 2.2 it is a whooping. I can AFMA the lens at +4 for the center point and far left cross-type sensor. But, for the far right cross-type sensor I have to have it on +20 to nail focus every time.

I mainly use the right cross-type af point in portraiture. So, this is becoming pretty inconvenient to have to switch the AFMA for the center point when I need to use the center af point.

I am going to call canon in the morning, but, I was wondering if anyone knew how much it would cost to replace the mirror box af sensor.

 

[chukronos]

So I called. They said they don't give estimates over the phone for a repair. Not sure why since, I am asking for a specific repair. Oh well. They told me to fail out the online repair form and that I would get an estimate before I sent it in for the specific repair. I filled it out. No estimate. I contacted them via email to see if I could get an idea as to what the repair would cost. They responded that they won't give me an estimate unless I send it in. Ugh!

So, I still have no idea how much it will cost. It may be more worth it to just sell it and buy another one. Oh well. Frustrating. If I get it figured out, I'll post the info in case anyone else with the same problem comes along.