June 18, 2018, 01:51:56 PM

Author Topic: AF setup help needed  (Read 1444 times)

Viggo

  • Canon EF 400mm f/2.8L IS II
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AF setup help needed
« on: February 25, 2018, 06:20:28 AM »
Hello !

I wonder if someone has any tips regarding tracking kids downhill sliding/sleigh (if that’s what it’s called)?

There is kind of flat light, and it seems impossible when it’s snowing, focus is on the snow itself, but the kids have very bright colored clothes against white and more white so I don’t get the problem.

What would you recommend to try regarding af setup? Feels like I have tried everything.

Shooting 1dx2 and 85 f1.4 L IS.
1dx mkII, 35 L II, Zeiss 50 f2 mp, 85 L IS, Broncolor Siros 800 L.

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AF setup help needed
« on: February 25, 2018, 06:20:28 AM »

hne

  • EOS 80D
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  • Posts: 279
  • Gear limits your creativity
Re: AF setup help needed
« Reply #1 on: February 25, 2018, 12:06:24 PM »
Did just that but with a 5DmkIV. AF Case 1 with default settings and initial point autoselect works well enough for me. Straight on at 15-20km/h can get tricky at f/1.4 and 3m distance but for me a third in focus is acceptable at such circumstances. In really heavy snowfall, lower tracking sensitivity. Dunno which af case that needs though.
Preferred gear: 5D IV, 35/1.4L, 85/1.4L IS, 70-200/2.8L IS, Elinchrom RX
Backup: 5D II, 17-40/4L, 85/1.8, 100-400/4.5-5.6L, Yongnuo + 622

Viggo

  • Canon EF 400mm f/2.8L IS II
  • *********
  • Posts: 3186
Re: AF setup help needed
« Reply #2 on: February 25, 2018, 01:40:50 PM »
Did just that but with a 5DmkIV. AF Case 1 with default settings and initial point autoselect works well enough for me. Straight on at 15-20km/h can get tricky at f/1.4 and 3m distance but for me a third in focus is acceptable at such circumstances. In really heavy snowfall, lower tracking sensitivity. Dunno which af case that needs though.

Thanks!

Auto initial? So you use all 61 points with color/face tracking? I’ve tried that also, no luck. I’m thinking this might be one of those scenarios were nothing works, because usually it’s very very good...
1dx mkII, 35 L II, Zeiss 50 f2 mp, 85 L IS, Broncolor Siros 800 L.

hne

  • EOS 80D
  • ****
  • Posts: 279
  • Gear limits your creativity
Re: AF setup help needed
« Reply #3 on: February 25, 2018, 02:07:31 PM »
Did just that but with a 5DmkIV. AF Case 1 with default settings and initial point autoselect works well enough for me. Straight on at 15-20km/h can get tricky at f/1.4 and 3m distance but for me a third in focus is acceptable at such circumstances. In really heavy snowfall, lower tracking sensitivity. Dunno which af case that needs though.

Thanks!

Auto initial? So you use all 61 points with color/face tracking? I’ve tried that also, no luck. I’m thinking this might be one of those scenarios were nothing works, because usually it’s very very good...

Sorry, wrong wording. I've got spot af as default on shutter half press with af-on doing all-point auto select based on subject at the point that was active. If I can't keep up with motion and keep a single point on target, I have a single button for my thumb to make the camera do Magic for me.
Preferred gear: 5D IV, 35/1.4L, 85/1.4L IS, 70-200/2.8L IS, Elinchrom RX
Backup: 5D II, 17-40/4L, 85/1.8, 100-400/4.5-5.6L, Yongnuo + 622

Viggo

  • Canon EF 400mm f/2.8L IS II
  • *********
  • Posts: 3186
Re: AF setup help needed
« Reply #4 on: February 25, 2018, 02:50:28 PM »
Did just that but with a 5DmkIV. AF Case 1 with default settings and initial point autoselect works well enough for me. Straight on at 15-20km/h can get tricky at f/1.4 and 3m distance but for me a third in focus is acceptable at such circumstances. In really heavy snowfall, lower tracking sensitivity. Dunno which af case that needs though.

Thanks!

Auto initial? So you use all 61 points with color/face tracking? I’ve tried that also, no luck. I’m thinking this might be one of those scenarios were nothing works, because usually it’s very very good...

Sorry, wrong wording. I've got spot af as default on shutter half press with af-on doing all-point auto select based on subject at the point that was active. If I can't keep up with motion and keep a single point on target, I have a single button for my thumb to make the camera do Magic for me.

Ah, that makes sense, I use af on for af, but use the *-button for a different AF set up.
1dx mkII, 35 L II, Zeiss 50 f2 mp, 85 L IS, Broncolor Siros 800 L.

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Re: AF setup help needed
« Reply #4 on: February 25, 2018, 02:50:28 PM »