-= 7D2 owners unite! Discuss and post photos!

That is encouraging. Yeah my first day was not too good as well. Both 1st and 2nd were on focus but I had the iTR on. I did not have my fastest card in and it was on 10fps. Gonna try a few other things as well.

peteg1 wrote in post #17261587
The first time I took my 7DII out I was not completely happy with the AF, so I turned off iTR face detection and set my Al Servo 1st & 2nd image priority all the way to Focus and used the Back-Button focus (AF-ON). I took it back out the next day and AF was dead-on all day.

iTR is only engaged in all points mode in AI Servo, were you using that mode or a different mode?

Kickflipkid687 wrote in post #17261361
The article makes sense.

But the fact that it back/front focuses randomly, and not consistently, worries me. I can take 5 shots in a row, and maybe 1-2 are good and the others are off or way off. Since this happens on 2 lenses, it's possible the camera is way off in calibration, which also isn't good then. I could exchange it potentially and try another one I guess.

My 7D had seemingly-random back/front focusing issues. It wasn't a matter of MFA given it was sometimes perfect, sometimes back-, and sometimes-front. So far, so good with the 7D2.

peteg1 wrote in post #17261587
The first time I took my 7DII out I was not completely happy with the AF, so I turned off iTR face detection and set my Al Servo 1st & 2nd image priority all the way to Focus and used the Back-Button focus (AF-ON). I took it back out the next day and AF was dead-on all day.

Good call on the iTR disabling.

Used it yesterday on a Polar Express ride with the kids, focus was spot on using center +8 expansion all night, although I was using the 430EX II with AF assist beam on. It is good that I seem to have the 17-55 dialed in pretty well and it was consistently hitting. Doing some testing in poor light in the basement it was consistent and hitting well now that I think I have it MFA'd. I have a 50 1.4 but have not tried it yet.

Keyan wrote in post #17261743
iTR is only engaged in all points mode in AI Servo, were you using that mode or a different mode?

That's how I understand it also....

Keyan wrote in post #17261743
iTR is only engaged in all points mode in AI Servo, were you using that mode or a different mode?

Used center +8 exp, Have no idea if turning off iTR had anything to do with it, but the AF was better.

First day playing around with it. Used with my Canon 70-200 F4 and 24-105 lens. So far I'm impressed with it. I am having a problem with focusing with my Sigma 150-500 but i think all Sigma lenses are having a problem.

IMAGE LINK: https://flic.kr/p/q18Z​Ef

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^^Nice duck shots.

peteg1 wrote in post #17261897
^^Nice duck shots.

Thanks!

Snydremark wrote in post #17261503
What AF mode are you shooting in and what do you have your Release Priority settings set to?

So I took it back and got another one. This one definitely seems much better now. Before, even in One Shot, my Canon lens would twitch back and forth trying to lock focus, but now it doesn't. I'm sure I have all the same settings applied on the new one.

I'm using Focus Priority for both images, One Shot, AWB, ITR On, Spot AF on the center position, and a 2 second timer with Mirror Lockup, on an extremely solid tripod.

I still am seeing a couple images here and there that are not quite sharp, but not nearly as bad as before. But it is random. It also seems like I still have to set my Tamron to +20 AF tune, to get it looking sharp at 600mm.

I've been testing this about 12ft away from a wall, where the focus chart is taped.

I should note, my 60D is missing focus slightly sometimes, about the same as my 2nd Mark II is doing I think. So it's possible my USM is slipping sometimes or is another random thing.

I think I might be good now. But need to look at the images again on my PC.

Kickflipkid687 wrote in post #17261983
I still am seeing a couple images here and there that are not quite sharp, but not nearly as bad as before. But it is random. It also seems like I still have to set my Tamron to +20 AF tune, to get it looking sharp at 600mm.

I've been testing this about 12ft away from a wall, where the focus chart is taped.

I am thinking that 12ft may be a bit on the close side for MFA'ing at 600mm - also it is not that far away from Minimum focusing distance of just under 9ft.

My understanding is that the recommended distance is 50 x focal length in mm, ie 50 x 600mm = 30m.

Maybe worth a try to see if your MFA values change.

Keyan wrote in post #17261743
iTR is only engaged in all points mode in AI Servo, were you using that mode or a different mode?

Page 128 of the manual states, "EOS iTR AF works when the AF area selection mode is set to Zone AF (manual selection of zone), Large Zone AF (manual selection of zone), or 65-point automatic selection AF."

@ACESFULL82: That first Mallard is brilliant!

Ok, so I had occasion to really push the limits of my system with a night-time, flag football game last night. First off, though, I don't normally 'do' sports shooting and I never shoot in the damned dark like this. That said, I'm pretty damned impressed with how this thing AF'ed and let me get the shots I *did* manage; there was some back-focusing that I am fairly sure were from me mucking up my MFA, which I'll be working on.

I, mostly, used Case 2 but also branched to try Case 5, which worked pretty well, also. I tried zone and large zone AF point selection again, but once again, it still seems to have a tendency to jump off of my subject even when sensitivity is reduced to zero. Had fine luck using AF Expansion and AF Surround modes, though.

Images converted to TIFF w/ 0 NR in DPP and then edited through LR 5.6.

So, here are a couple of the better examples I managed to pull out of action shooting at ISO 8000, 10000 and 12800:

ISO 8000; 100-400 @ 260, f/5.6, 1/320:

IMAGE LINK: https://flic.kr/p/p4gn​ez

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KatManDEW wrote in post #17262002
Page 128 of the manual states, "EOS iTR AF works when the AF area selection mode is set to Zone AF (manual selection of zone), Large Zone AF (manual selection of zone), or 65-point automatic selection AF."

Yeah, which is odd, the AF guide link that has been rolling around implies it is only active in all points mode. Regardless, it won't work in expansion mode, so that shouldnt have been affecting focus.

KatManDEW wrote in post #17262002
Page 128 of the manual states, "EOS iTR AF works when the AF area selection mode is set to Zone AF (manual selection of zone), Large Zone AF (manual selection of zone), or 65-point automatic selection AF."

I was testing the zones when shooting.