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Thread started 02 Jul 2011 (Saturday) 21:15
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50D focus issues

 
Scooter650
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Jul 02, 2011 21:15 |  #1

Looking for some help and opinions here. I have been shooting with my 50D for about 8 months now, and don't always feel it is sharp, and I feel like I am seeing it become soft, or not accurately focus, beyond 20 feet.

This morning I did some testing with it, and shot with my cheapest lens, the nifty fifty at f4 and it was tack sharp on about 95% of shots. I put on my 7-200 and had to back off a little to get the framing I wanted, and immediately checked focus and felt it was soft. So I switched back to the 50mm and finished the shoot.

So, is this normal? I had an xsi before, and never felt I had focus issues. Since then I have upgrade glass, along with the body, and seem to get this issue often. I have micro adjusted every lens, and everything seems sharp up close, but at distances it seems to miss focus or be soft.

Looking at the shot below, give me some thoughts. If I do need to send it in for calibration, can anyone give me an idea of what I am looking at that costing?

IMAGE NOT FOUND
IMAGE IS A REDIRECT OR MISSING!
HTTP response: NOT FOUND | MIME changed to 'image/gif' | Redirected to error image by FLICKR


And a crop.

IMAGE NOT FOUND
IMAGE IS A REDIRECT OR MISSING!
HTTP response: NOT FOUND | MIME changed to 'image/gif' | Redirected to error image by FLICKR

Scott I S2Imagery (external link) I Flickr (external link) I Facebook (external link) I 5DII, Canon 85 f1.8, Canon 50mm f1.4

  
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LarryD
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Jul 02, 2011 21:57 |  #2

check your image with a program that shows what focus points were on when the shot was taken..

It looks like the foliage to the left is in focus and perhaps the top of her head.. If you are shooting wide open, the DOF is too shallow to have the face in focus.


.... Got some cameras; got some glass ..... I just need one more of each.....:rolleyes:

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Inqe
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Jul 02, 2011 22:16 |  #3

Is this the same shot I saw at your house Scooter605? I can't remember...but, I recall the one where I thought the focus was missed too and fell on the grass. This is either the same pic or the same issue.


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Scooter650
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Jul 02, 2011 22:21 |  #4

Different shot. I'll have to install DPP and check the focus point. Took 5 shots though and they are all soft.


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yogestee
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Jul 02, 2011 23:07 as a reply to  @ Scooter650's post |  #5

Sorry Scooter I can't help you,, there is no EXIF data in our photo..


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geeky
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Jul 02, 2011 23:12 |  #6

Have you tried an MA on your lenses and body?


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Scooter650
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Jul 02, 2011 23:19 |  #7

Exif is on flickr, and yes, I have microadjusted.


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Scooter650
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Jul 03, 2011 12:44 |  #8

LarryD wrote in post #12695608 (external link)
check your image with a program that shows what focus points were on when the shot was taken..

It looks like the foliage to the left is in focus and perhaps the top of her head.. If you are shooting wide open, the DOF is too shallow to have the face in focus.

I thought that DPP or ZoomBrowser would show this, but it only overlays the AF points. Is there a way to see that ACTUAL focal point? Since I backbutton focus and recompose the overlay is not true.


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Overkill-F1
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Jul 03, 2011 14:53 |  #9

Scooter650 wrote in post #12697991 (external link)
I thought that DPP or ZoomBrowser would show this, but it only overlays the AF points. Is there a way to see that ACTUAL focal point? Since I backbutton focus and recompose the overlay is not true.

If you press and release the backbutton for focus, the focus point will not show in DPP. It will show in DPP if you were to hold down the backbutton while you release the shutter button.
...Terry
ps. sort of defeats the reason to remove the focus from the shutter button though.


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Scooter650
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Jul 03, 2011 17:39 |  #10

So then its worthless info at that point and does not help me. Thanks for confirming it.


Scott I S2Imagery (external link) I Flickr (external link) I Facebook (external link) I 5DII, Canon 85 f1.8, Canon 50mm f1.4

  
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50D focus issues
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