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FORUMS Canon Cameras, Lenses & Accessories Canon EOS Digital Cameras 
Thread started 12 Nov 2014 (Wednesday) 14:59
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7D Mark II - Focus Discussions

 
RodS57
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Feb 10, 2015 20:59 as a reply to  @ post 17426207 |  #1696

I didn't post any pics. If I ever get any that I feel are worthy then I will be sure to post.

Thanks for the suggestions/comments related to my OOF shots. Lots of things to keep in mind.

Rod


>>> Pictures? What pictures? <<<<

  
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huntersdad
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Post edited over 4 years ago by huntersdad.
     
Feb 10, 2015 21:09 |  #1697

britt777 wrote in post #17426262 (external link)
Here is a picture taken using the recommended Spot focus-Single shot. Focused on eye and still totally out of focus. Please help. I know this can't be me. Is there a setting or something I'm missing. I really don't want to think its the darn camera.

Brittany, Put the camera in Servo. That bird is sitting entirely still. Once you lock in in One Shot and he moves 1/2 in, your focus is off. I would also shoot a higher shutter speed personally and smaller aperture - something along the lines of 1/1600, f8. Let the ISO fall where it may, which I believe would have been 800 using my recs.

I would also shift your focus point more to the white of the bird. If you look, the area you hit is 75% dark, 25% light. Give it some more white and see how it does. With all the AF points showing, it's hard to tell if there is anything in focus.

You might also consider microadjusting that combo to ensure you are getting the most out of it. The 2.8 non-IS version is the least sharp of the bunch and adding a TC might not help.


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britain
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Post edited over 4 years ago by britain. (2 edits in all)
     
Feb 10, 2015 21:09 |  #1698

@britt777 , That's the lens I want to get. Do you have the same issue without the extender? The picture below is @400mm F10
Really sharp and going through a lot of garbage. Pin point focus on the bird. I use the back button focus and had to focus a few times.


IMAGE: http://icorva.com/Photography/7D2/2.7.2015/BB.jpg

7D2, 20D , 100-400L I, 100-400L II, EFS 17-85 , EFS 18-135, EFS 10-18mm, 100 2.8 macro , ring light, 430EX II, PD Capture Pro, Lifted modified Jeep to shake it all up:)

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britt777
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Feb 10, 2015 21:17 |  #1699

britain wrote in post #17426281 (external link)
@britt777 , That's the lens I want to get. Do you have the same issue without the extender? The picture below is @400mm F10
Really sharp and going through a lot of garbage. Pin point focus on the bird. I use the back button focus and had to focus a few times.


QUOTED IMAGE

I was just wondering the same thing. Im going to shoot without the extender tomorrow and see what kind of results I get.


Brittany
www.shutterprophotogra​phy.com (external link)

  
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gschlact
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Feb 10, 2015 21:35 |  #1700

britt777 wrote in post #17426262 (external link)
Here is a picture taken using the recommended Spot focus-Single shot. Focused on eye and still totally out of focus. Please help. I know this can't be me. Is there a setting or something I'm missing. I really don't want to think its the darn camera.

So I am not sure what you expect us to see asking about focus /sharpness in a screen shot of a low res fileLooks like front focus possibility. A huge number of suggested settings have been discussed in this thread. You haven't mentioned which ones you used. Did you mfa separately for the TC on the lens?




  
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gschlact
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Feb 10, 2015 21:40 |  #1701

britain wrote in post #17426254 (external link)
Must have a good copy. Only a few "Op" errors for OOF. Shot the BA in the heat of the day , bad conditions with the older 100-400.


QUOTED IMAGE

I am not sure your post would be an example to measure shimmer. The grass would be typicallycooler than ambient, plenty of shimmer behind plane from exhaust though, plane would be a large crop to try to see critical sharpness, right?




  
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Frodge
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Feb 10, 2015 21:56 as a reply to  @ post 17426262 |  #1702

I shoot with a 60d and T3i and a Tamron 70-300 for pics like this. First thing is I would stop the lens down a little bit. Maybe raise the shutter a bit and give up a little iso if necessary. But I don't think shutter speed is an issue in this case. The photo is what I would consider severely out of focus. I wouldn't be happy with the results you're getting. I'm not trying to be a downer either. My best guess is that if closing the lens down a bit doesn't help, your copy is no good. I've been following the 70d and 7dii threads for months. I have this sinking suspicion that there is a qc problem or some sort of software/hardware inconsistency. If I used either body of mine for a shot like that, it would pretty damn sharp and not nearl as washed out looking


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britain
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Feb 10, 2015 22:03 |  #1703

I haven't MFA the lens. Seem to be pretty good , I checked it on a chart. The plane is in the heat waves viewed on a large crop. That day it was in the 90's and really hazy. The kit lens is pretty dead on also. The shot below I used the center focus point and it wasn't on the 2 front birds (target) but slightly above them on the wall. So I'm still trying to figure out the AF Points.

IMAGE: http://icorva.com/Photography/7D2/2.8.2015/B2.jpg

7D2, 20D , 100-400L I, 100-400L II, EFS 17-85 , EFS 18-135, EFS 10-18mm, 100 2.8 macro , ring light, 430EX II, PD Capture Pro, Lifted modified Jeep to shake it all up:)

My Website HERE (external link)

  
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jingler
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Feb 11, 2015 00:24 |  #1704

Iam on my fourth body and for the last 3 weeks it has been attached to the 100-400 mk2 and I have been more than happy.
yesterday I used it with the 70-200 2.8is 2 and back to square one most images out of focus with both focusing methods.
Tried micro adjusting to no avail.
The same lens works perfect on my 7d mk1 and 5d mk3.
I will call the supplier today and see what they say.

thanks




  
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Canon-Chas
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Post edited over 4 years ago by Canon-Chas. (2 edits in all)
     
Feb 11, 2015 03:48 as a reply to  @ post 17426262 |  #1705

At F4 the depth of field at 280mm and that distance is about 2/3 inch ( 16mm) thats only 1/3rd inch in front and behind which is less than the birds width.

F6.3 or above would have given a an acceptable depth of field.

Apart from that your settings were fine, maybe the camera is front focusing, I cant see anything sharp behind the bird ? Have you tried Micro focus adjustment ?


Chas
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skid00skid00
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Post edited over 4 years ago by skid00skid00.
     
Feb 11, 2015 07:28 |  #1706

britt777 wrote in post #17426193 (external link)
I was focused right on the head. Not sure I understand why it would focus on the reeds?

The actual coverage of *spot* focus, at the center point, is a cross whose width of coverage is about half of the width of the visible AF point box that you see. And the *length* of each leg (horizontal/vertical) extends past the sides of the visible box by a significant amount. In my 1Ds and 5D3, the box is NOT centered exactly on the AF lines, either. Selecting single point AF will encompass a larger area. I don't know how much larger, I've only ever seen an image of the spot focus line array...

More on point (no pun intended), AF doesn't see what you see. It's grayscale, and 'sees' a line of pixels of varying brightness. It will use the most contrasty sets of points in that line to achieve focus. Zoom your image to 100% and look at what's most contrasty. It's the background. In my limited tests at home, it seems that my 5D3 cares more about black lines next to gray lines, than it does to white highlights next to gray, FWIW.

You can test where the edges of *your* camera AF points are using a sharp-edged subject with no close background. Slowly sweep the center AF point past that sharp edge in Servo, and see where the camera jumps to the background. You'll be surprised.

See this: http://learn.usa.canon​.com …ticles/2014/spo​t_AF.shtml (external link)




  
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skid00skid00
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Feb 11, 2015 07:31 |  #1707

britain wrote in post #17426281 (external link)
@britt777 , That's the lens I want to get. Do you have the same issue without the extender? The picture below is @400mm F10
Really sharp and going through a lot of garbage. Pin point focus on the bird. I use the back button focus and had to focus a few times.


QUOTED IMAGE

RE: my prior post, the crow's feet would make an excellent target for the AF spot...




  
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skid00skid00
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Feb 11, 2015 07:43 as a reply to  @ skid00skid00's post |  #1708

This really explains how the AF module works: http://photo.stackexch​ange.com …ctly-or-front/41179#41179 (external link)




  
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skid00skid00
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Feb 11, 2015 07:53 as a reply to  @ skid00skid00's post |  #1709

Here, a guy mapped and illustrated how his AF points extended WELL past the AF boxes: http://blogs.stonestep​s.ca/showpost.aspx?pid​=54 (external link)




  
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britt777
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Feb 11, 2015 07:56 |  #1710

skid00skid00 wrote in post #17426799 (external link)
This really explains how the AF module works: http://photo.stackexch​ange.com …ctly-or-front/41179#41179 (external link)

thank you for the links, looks like I have a lot of learning to do. This whole focus thing gets more complicated with every new camera that comes out. I just want to take pictures, don't want to have to read all day. Really takes away from all the fun. Guess that can explain why I stopped taking photos for so long. It was also suggested I microadjust my lens combo. Don't know how to do that either....grrrr. Read read read.


Brittany
www.shutterprophotogra​phy.com (external link)

  
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7D Mark II - Focus Discussions
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