June 23, 2018, 01:53:51 PM

Author Topic: eye focusing with 5D3  (Read 1943 times)

steliosk

  • EOS Rebel T7i
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eye focusing with 5D3
« on: November 23, 2013, 09:24:14 AM »
Hi again,
i'm playing a bit with an 85mm f/1.8 at 1.8
I'm having a 5D3 and i use this kind of setup for head portraits. so here are my worries:

There are two choices: spot AF and point AF

so let me see if i get it straight:

The spot AF is used for tiny subjects like eye lashes and it can be more accurate than the point AF. Right?

which one do you use for portrait shots? or it doesn't matter?

after playing a bit with both, the point AF hit the target better than the spot AF, or is it just me? i'm a bit confused.
5D3 + 6D + 600D
STM 40, EF 50 1.4, EF 85 1.8, 100L, 24-70L II, 70-200 2.8 IS II, Sigma 12-24 II, Samyang 8mm Fisheye, EF-S 10-22, EF-S 15-85 and my old and fair working 350D.

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eye focusing with 5D3
« on: November 23, 2013, 09:24:14 AM »

Random Orbits

  • Canon EF 300mm f/2.8L IS II
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Re: eye focusing with 5D3
« Reply #1 on: November 23, 2013, 09:38:58 AM »
For single subjects, I tend to use spot AF.  Have you AFMA'ed the lens to your body?

Dylan777

  • Canon EF 400mm f/2.8L IS II
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Re: eye focusing with 5D3
« Reply #2 on: November 23, 2013, 10:16:35 AM »
For outdoor shooting, I have no problem shooting 5D III + 85L II @ f1.2 AF point, even the outer AF points. I have not yet try spot AF yet.

As Random Orbits mentioned, AFMA is very important for prime. Both of my 5D III are set to ONLY DUAL-CROSS-AF-POINTS and CROSS- AF -POINTS. The remaining AF points are on disable.

« Last Edit: November 23, 2013, 02:31:15 PM by Dylan777 »

steliosk

  • EOS Rebel T7i
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  • Posts: 144
    • stelioskritikakis.com
Re: eye focusing with 5D3
« Reply #3 on: November 23, 2013, 10:23:49 AM »
i haven't done any AFMA. The focus seems properly after some testings on a ruler.
5D3 + 6D + 600D
STM 40, EF 50 1.4, EF 85 1.8, 100L, 24-70L II, 70-200 2.8 IS II, Sigma 12-24 II, Samyang 8mm Fisheye, EF-S 10-22, EF-S 15-85 and my old and fair working 350D.

canon rumors FORUM

Re: eye focusing with 5D3
« Reply #3 on: November 23, 2013, 10:23:49 AM »