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FORUMS Canon Cameras, Lenses & Accessories Canon EOS Digital Cameras 
Thread started 15 Sep 2014 (Monday) 11:20
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-= 7D2 owners unite! Discuss and post photos!

 
Archibald
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Mar 18, 2017 15:00 |  #16591

wesjr wrote in post #18304366 (external link)
Two from yesterday evening at the Alligator Farm. Didn't see vast numbers of roosting birds.

Not sure why..

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Still looks like a productive visit!


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Mar 18, 2017 15:12 |  #16592

One from Viera Wetlands in Melbourne, Florida. 3/7/17

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IMAGE LINK: https://flic.kr/p/RM76​ZW  (external link) 000-AAA (external link) by John (external link), on Flickr

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digital ­ paradise
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Mar 18, 2017 15:20 |  #16593

TeleFragger wrote in post #18304299 (external link)
yeah for the birds I was trying @ 1/1000 not 1/100... the ones above are @ 1/100... I know I coulda gone higher but didn't think it was needed...

and also that LR plugin is deceiving. I didn't notice it said 0 focus achieved.. but had the red boxes like it did...

DPP once again shows why its so good... grrrr yeah 0 points... was auto focusing BBF the entire time..

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IMAGE LINK: https://flic.kr/p/T4vh​dn  (external link) DPP (external link) by Jeffrey Riggs (external link), on Flickr

Like Jeff said overcast is not the greatest for the light hungry 7D2. I hate shooting in it. The 7D2 is remarkably good at picking out the closest object. Zone may have not been the preferred choice by some but I have shot using it quite a bit in busy environments. I like to shoot in large and 65 point zone using cases 5 and 6. AF switching becomes faster. For precise tracking I like case 2 with TS set to -2. Single point, expansion and I have been trying out small zone as well.


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Mar 18, 2017 15:25 |  #16594

Here they are on the wings

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Bird moved before AF points caught but still in focus because TS is set t -2.

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Gulls for practice. This is in small zone.

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Mar 18, 2017 15:27 |  #16595

Large Zone AF worked great for me to get my killdeer shots in the following post I put up a few days ago

https://photography-on-the.net …showthread.php?​p=18299475

Remember that in zone AF, the CLOSEST object is picked for focusing. It is possible that for a large bird like an egret or a heron, the wingtip will be in focus and the eye may not, so I don't know if zone is the best for it, but for a duck, and if you are shooting at a smaller aperture, it might be fine. The advantage of zone AF is that it does not get confused by any BG stuff. I had the case settings at (-2, 1,1) for the killdeer shots


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Mar 18, 2017 16:42 |  #16596

TeleFragger wrote in post #18304213 (external link)
so what could I do to make it better????

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was done with 1.4 tele hence 280mm

Got a lot to learn with BIF


There is a parameter discussed on page 117 and 118 of the 7dii online manual called "first and second image priority. Basically, it lets you tell the camera whether you are more interested in "getting the shot" or getting the focus correct. I have mine both set for "focus priority". OOF shots don't do much for me. Not sure if this would help in your case, I believe the factory setting is "equal priority".

The 7dii takes time to master and requires patience, but it has helped me improve the quality of my BIF images considerably. I love the 65 point zone setting, it helps compensate for my inadequate panning skills. Keep at it, perhaps with some easier subjects to start.

Attached is an example from this morning in my backyard. This White-winged Dove was in view for only a couple of seconds. When I first raised the camera and pressed the shutter button, nothing happened because he was on the very edge of the viewfinder. I caught up to him, the camera fired twice and he was gone (they are very fast flyers). This is cropped a bit and is way more satisfying to me than a string of ten or so out-of-focus images.


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TeleFragger
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Mar 18, 2017 17:02 |  #16597

I have both set as well to focus...

I just cant get used to the 65pt as it never locks on what i want it to.

Is there a setting to tell it lock center pt then follow while in 65pt af mode?


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Mar 18, 2017 17:16 |  #16598

TeleFragger wrote in post #18304509 (external link)
I have both set as well to focus...

I just cant get used to the 65pt as it never locks on what i want it to.

Is there a setting to tell it lock center pt then follow while in 65pt af mode?

The answer is yes, but in saying that the 7DII is a very highly customizable camera. There are videos and the manual that can remove some of the fog if you know what I mean. I think we have all gone over it 20 time just to get a handle on the parts we have customized to our liking.


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digital ­ paradise
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Mar 18, 2017 17:32 |  #16599

TeleFragger wrote in post #18304509 (external link)
I have both set as well to focus...

I just cant get used to the 65pt as it never locks on what i want it to.

Is there a setting to tell it lock center pt then follow while in 65pt af mode?

I just watched a Grant Atkinson video on the 7D2. He sets his to Release. It's not that it won't focus, it just does not cycle the focus confirmation multiple times. I had mine set to Focus but about 6 months ago went back to the factory settings of Equal.

https://www.youtube.co​m …o2XsUgezBDkuyUF​hy&index=4 (external link)


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Mar 18, 2017 17:54 |  #16600

1st and 2nd priority have no bearing on initial AF acquisition. We have very little control over that. It is all about contrast. Either the camera sees it or it doesn't. We don't have a fine tuning setting for contrast. It also depends on the age of our equipment, what type of AF point we are working with - cross type or dual cross type. 1st and 2nd priority just control confirmation of the initial AF acquisition.

Neither do the case numbers. I have read every document Canon has released and did controlled tests to see for myself. The camera on a tripod and I chose a high contrast image. I taped and marked the barrel so I would defocus the same amount each time between each test. I tested with TS -2 and TS +2. There was no noticeable difference in AF acquisition time, but between the two there was a big difference how long the AF hung on when I moved the AF point off the target. Which is basically TS's job.

I don't know how that could be tested in the field. No bird or second bird flies exactly the same way twice, slight changes in light, different colouring patterns of a bird and you can't place the AF point on the exact same spot every time.


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Mar 18, 2017 18:28 |  #16601

digital paradise wrote in post #18304551 (external link)
1st and 2nd priority have no bearing on initial AF acquisition. We have very little control over that. It is all about contrast. Either the camera sees it or it doesn't. We don't have a fine tuning setting for contrast. It also depends on the age of our equipment, what type of AF point we are working with - cross type or dual cross type. 1st and 2nd priority just control confirmation of the initial AF acquisition.

Neither do the case numbers. I have read every document Canon has released and did controlled tests to see for myself. The camera on a tripod and I chose a high contrast image. I taped and marked the barrel so I would defocus the same amount each time between each test. I tested with TS -2 and TS +2. There was no noticeable difference in AF acquisition time, but between the two there was a big difference how long the AF hung on when I moved the AF point off the target. Which is basically TS's job.

I don't know how that could be tested in the field. No bird or second bird flies exactly the same way twice, slight changes in light, different colouring patterns of a bird and you can't place the AF point on the exact same spot every time.

And that is not saying DP will or will not get a better image standing next to a second shooter with totally differnt settings. So the answer is make it your own and you will get what you want from this camera... Until the next one comes along. I follow no one but make my own path. !!


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Mar 18, 2017 18:28 |  #16602

digital paradise wrote in post #18304551 (external link)
1st and 2nd priority have no bearing on initial AF acquisition. We have very little control over that. It is all about contrast. Either the camera sees it or it doesn't. We don't have a fine tuning setting for contrast. It also depends on the age of our equipment, what type of AF point we are working with - cross type or dual cross type. 1st and 2nd priority just control confirmation of the initial AF acquisition.

Neither do the case numbers. I have read every document Canon has released and did controlled tests to see for myself. The camera on a tripod and I chose a high contrast image. I taped and marked the barrel so I would defocus the same amount each time between each test. I tested with TS -2 and TS +2. There was no noticeable difference in AF acquisition time, but between the two there was a big difference how long the AF hung on when I moved the AF point off the target. Which is basically TS's job.

I don't know how that could be tested in the field. No bird or second bird flies exactly the same way twice, slight changes in light, different colouring patterns of a bird and you can't place the AF point on the exact same spot every time.

Agreed. There seems to be no way to do semi-systematic tests to learn what works best or to tune settings for BIF. So we are left to stay on default or guess at settings or follow someone's advice for BIF events that are unpredictable.


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Mar 18, 2017 19:48 |  #16603

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Mar 18, 2017 19:59 |  #16604

? I posted a question on this thread a few hours ago regarding the 4-helper expanded AF vs the 8-helper expanded AF, and it was replied to by Jake the Moderator (Cyberdyne Systems) - who replied that he usually uses the 8-helper

and it has been deleted....


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Mar 18, 2017 20:11 |  #16605

Immaculens wrote in post #18304633 (external link)
? I posted a question on this thread a few hours ago regarding the 4-helper expanded AF vs the 8-helper expanded AF, and it was replied to by Jake the Moderator (Cyberdyne Systems) - who replied that he usually uses the 8-helper

and it has been deleted....

I think it is here.
https://photography-on-the.net …showthread.php?​p=18304364


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