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Thread started 29 Nov 2014 (Saturday) 21:43
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7D Mark II (another focus thread)

 
ScPhotoMom
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Nov 29, 2014 21:43 |  #1

I have tried to read all of the other threads concerning focus issues but am getting overwhelmed with all the information. So let me break it down this way.

I am coming from a 40D. Never had to calibrate anything and it had tack sharp images straight out of the box. The new 7D mark II, I am getting maybe a 20% save rate on my images. All the rest are missed focus or soft. I am probably guessing its inexperience and user error, although I have heard there is a bad batch out there? But can some one please tell me how to fix this. I don't know if its a calibration issue, or me using the wrong type of focus method? a portion of my images seem to front focus. A great deal seem to back focus, and other times, nothing is in focus at all. And when I check the red indication spot, what it says should be in focus is not always in focus.

Im sort of a show me hands on learner, but there are no tutorials on youtube yet for this issue.

Here is a front focus that I have not deleted yet. I tend to delete them as soon as I see them to conserve space.

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2n10
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Nov 29, 2014 21:45 |  #2

Please post your problem photos along with their complete exif data. This will help everyone to provide you suggestions that should work versus conjecture.


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TeamSpeed
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Nov 29, 2014 21:53 |  #3

First make sure your shutter speeds are the inverse of twice your focal length to eliminate that as an issue of soft focus.


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Nov 29, 2014 21:56 as a reply to  @ 2n10's post |  #4

Yes, please post one of each front, back, and out of focus, with EXIF intact.


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Nov 29, 2014 22:11 |  #5

It sounds as if the OP needs to practice with the focus points. When I switched from the 40D to the 7D I was having some difficulties with the focus system of the latter. What helped me was David Busch's Canon EOS 7D Guide to Digital SLR Photography, and I imagine that he has already written a book for the 7D II.

The problem is that the camera is too new for photographers to have video instructions on how to use the focus points of the 7D II.
http://learn.usa.canon​.com …s7dmkii_zoneaf_​afpt.shtml (external link)




  
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Nov 29, 2014 22:19 |  #6

Here is a front focus that I have not deleted yet. I tend to delete them as soon as I see them to conserve space.

IMAGE: https://farm8.staticflickr.com/7509/15908591891_34acaeaf81_b.jpg
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IMAGE: https://farm8.staticflickr.com/7473/15290907473_5852263481_b.jpg
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Nov 29, 2014 22:21 |  #7

Let me see if I can find a back focused I havent deleted yet. And again, I have never had this problem with my 40D and my lenses :-(


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Nov 29, 2014 22:29 |  #8

You didn't have this issue with the 40d because it had 9 points that were pretty far apart. The actual af points on the 7d2 are much closer and are a bit larger than the black boxes you see, they are merely representative of which af points were used and may not accurately tell you specifically what the af points are. In your sample, the scarf has more contrast and is closer and sits in the af sensor zone, so most likely that is what the camera latched onto. Even in spot AF, that would be a hit or miss shoot IMO.

That could explain your seemingly random results, coupled with shutter speeds that sometimes may not be the most appropriate for sharp photos.


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Nov 29, 2014 22:34 |  #9

Back Focus - focus fell behind her on grey area near her legs

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Nov 29, 2014 22:35 |  #10

No focus at all

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Nov 29, 2014 22:38 |  #11

TeamSpeed wrote in post #17300564 (external link)
You didn't have this issue with the 40d because it had 9 points that were pretty far apart. The actual af points on the 7d2 are much closer and are a bit larger than the black boxes you see, they are merely representative of which af points were used and may not accurately tell you specifically what the af points are. In your sample, the scarf has more contrast and is closer and sits in the af sensor zone, so most likely that is what the camera latched onto. Even in spot AF, that would be a hit or miss shoot IMO.

That could explain your seemingly random results, coupled with shutter speeds that sometimes may not be the most appropriate for sharp photos.

In a nutshell, you are saying I have no idea what I am doing lol


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Nov 29, 2014 22:42 |  #12

RayinAlaska wrote in post #17300533 (external link)
It sounds as if the OP needs to practice with the focus points. When I switched from the 40D to the 7D I was having some difficulties with the focus system of the latter. What helped me was David Busch's Canon EOS 7D Guide to Digital SLR Photography, and I imagine that he has already written a book for the 7D II.

The problem is that the camera is too new for photographers to have video instructions on how to use the focus points of the 7D II.
http://learn.usa.canon​.com …s7dmkii_zoneaf_​afpt.shtml (external link)

I was using spot metering. Thats always given me good results.


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Nov 29, 2014 23:11 as a reply to  @ ScPhotoMom's post |  #13

You weren't in AI Servo mode:

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You were in AI Focus focus mode. This is the worst possible choice as it tries to determine whether or not your subject is moving then activate one of the other modes accordingly. Unless it has been MARKEDLY improved on the 7D2, it is too slow in making this decision. This IMO, is the root of your problem, you'd be much better off selecting AI Servo to deal with rapidly moving children and switching manually to One Shot only if they stop moving. Much practice is needed but I would avoid AI Focus at all costs.

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Nov 29, 2014 23:28 as a reply to  @ rrblint's post |  #14

Now I have to go back through all my photos and see if the mode wS always set that way. This has been an ongoing problem. Not just this particular day. I'll check it in the am


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Nov 29, 2014 23:34 |  #15

Maybe you can try using single shot , and choose 9 af points option on your 7d mk ii, than take a shoot, don't forget to selected which dot points you want to focus with, than post the result here, mine got very sharp after using those settings, execpt for sport and wildlife you may choose ai servo for better result, because ai servo is designed to shoot extra fast moving object, not for candid or portarits .. Good luck




  
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