December 18, 2014, 07:38:22 PM

Author Topic: How are the AF points numbered on the 5D3  (Read 1548 times)

J.R.

  • 1D X
  • *******
  • Posts: 1520
    • View Profile
How are the AF points numbered on the 5D3
« on: January 17, 2013, 09:09:39 AM »
Hi,

I installed the Rob Cole's plugin for lightroom today (thanks to Marsu42). While checking the AF information in the metadata, I noticed that for AF expansion mode, the AF focus points were mentioned as numbers. For instance, one of my shot's AF metadata read - "AF Points Selected: 19, 29, 30, 35 and 41".

My question is, what is the numbering sequence for the AF points.

Cheers ... J.R.
5D3, 6D, 600D, RX100
16-35L, 24-70L II, 70-200L II, 100-400L, 50L, 85L II, 135L, 24TSE, 40, 100 macro, 18-55 II, 55-250 II, 600RT x 4
I come here to learn something new, not to learn how bad my gear is - I know that already ;-)!

canon rumors FORUM

How are the AF points numbered on the 5D3
« on: January 17, 2013, 09:09:39 AM »

neuroanatomist

  • CR GEEK
  • ************
  • Posts: 15196
    • View Profile
Re: How are the AF points numbered on the 5D3
« Reply #1 on: January 17, 2013, 10:35:55 AM »
You could take a series of shots, manually selecting each AF point and looking at the EXIF, and then tell us...   ;)

Not sure if it's the same, but FoCal numbers them from the right side of the lowest row (in true programmer fashion, counting starts at zero) and rastering upwards - see the parenthetical numbers below (and note that these are for the 1D X, but I'm sure the 5DIII is the same).  It seems likely that your plugin is using the same scheme - not sure what your selected points were, but the points you mention (19, 29, 30, 35 and 41) are the five points in a '+' configuration in the center (i.e. center point with 4-point expansion).
EOS 1D X, EOS M, and lots of lenses
______________________________
Flickr | TDP Profile/Gear List

J.R.

  • 1D X
  • *******
  • Posts: 1520
    • View Profile
Re: How are the AF points numbered on the 5D3
« Reply #2 on: January 17, 2013, 11:29:07 AM »
Thanks Neuro ... You're right on the money there. The AF Points are right in the centre and match with the bird I was ahem ... Shooting.

Cheers ... J.R.
5D3, 6D, 600D, RX100
16-35L, 24-70L II, 70-200L II, 100-400L, 50L, 85L II, 135L, 24TSE, 40, 100 macro, 18-55 II, 55-250 II, 600RT x 4
I come here to learn something new, not to learn how bad my gear is - I know that already ;-)!

canon rumors FORUM

Re: How are the AF points numbered on the 5D3
« Reply #2 on: January 17, 2013, 11:29:07 AM »