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FORUMS Canon Cameras, Lenses & Accessories Canon EOS Digital Cameras 
Thread started 03 Jul 2009 (Friday) 20:59
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40D unacceptably soft?

 
mrfixitx
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Jul 03, 2009 20:59 |  #1

I would really appreciate some feed back here. I purchased a 40D a while ago and just got a new 70-200f4L lens and I just dont seem to be happy with the results.

I am not sure if I am expecting to much out of it if I have a legitimate issue with this body and it needs to go to canon.

A while ago I did a focus test using my old Rebel XT vs. the 40D. I used a tripod and identical settings using a studio strobe and used the same 70-200f4L lens on both. Both sets of photos were shot in RAW and converted with identical settings in lightroom. Center focus point used on both and I let both camera's use auto focus on the subjects nose.

The pictures of the Rebel XT (350D) are noticeably sharper than the ones from the 40D. Even with sharpening the ones from the 40D just do not seem to have same detail.

Is there something I am doing wrong? Am I expect to much or do I need to send my 40D into canon?

I have attached a an example from each that were typical of numerous test shots. Both have full EXIF though it appears you may have to go to flickr to see the full EXIF.

From the Rebel XT

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


40D
IMAGE NOT FOUND
IMAGE IS A REDIRECT OR MISSING!
HTTP response: NOT FOUND | MIME changed to 'image/gif' | Redirected to error image by FLICKR


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griptape
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Jul 03, 2009 21:31 |  #2

The 40D sample looks sharper to me personally.




  
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yvonchap
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Jul 03, 2009 21:32 |  #3

mrfixitx wrote in post #8220272 (external link)
I would really appreciate some feed back here. I purchased a 40D a while ago and just got a new 70-200f4L lens and I just dont seem to be happy with the results.

I am not sure if I am expecting to much out of it if I have a legitimate issue with this body and it needs to go to canon.

A while ago I did a focus test using my old Rebel XT vs. the 40D. I used a tripod and identical settings using a studio strobe and used the same 70-200f4L lens on both. Both sets of photos were shot in RAW and converted with identical settings in lightroom. Center focus point used on both and I let both camera's use auto focus on the subjects nose.

The pictures of the Rebel XT (350D) are noticeably sharper than the ones from the 40D. Even with sharpening the ones from the 40D just do not seem to have same detail.

Is there something I am doing wrong? Am I expect to much or do I need to send my 40D into canon?

I have attached a an example from each that were typical of numerous test shots. Both have full EXIF though it appears you may have to go to flickr to see the full EXIF.

I have 2 more up on my flickr stream.

http://www.flickr.com/​photos/mrfixitx/ (external link)


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Austin.Manny
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Jul 03, 2009 21:35 |  #4

griptape wrote in post #8220360 (external link)
The 40D sample looks sharper to me personally.

No, the XT looks sharper. The 40D looks as though it might be backfocusing. Too bad you don't have the micro-adjustment capabilities of the 50D. I know I'm not helping. Maybe a legit reason for an upgrade...? ;)


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Saint728
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Jul 03, 2009 21:39 |  #5

Very shallow DOF as well. It just looks like you have a bit of AF back focusing issues on the 40D as the nose is out of focus.

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mrfixitx
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Jul 03, 2009 21:40 |  #6

LOL would love to upgrade but spent all my money on a 40D.


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malcolm027
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Jul 03, 2009 21:44 |  #7

Wow, I was thinking of buying a 40d to upgrade from my XT. All this research is convincing me to wait for a cheaper 50d. UGH lol


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bohdank
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Jul 03, 2009 21:47 |  #8

The 40D shot is darker, obscuring detail in the nose.


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Raymate
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Jul 03, 2009 21:50 |  #9

Interesting... I went from a 350D last year to a 40D and I noticed the same thing, I just added some sharp setting in the picture style and it seemed better. The 40D was so much better to handle I just lived wit it.

Then..... yesterday my 40D died Shutter problem.

So I jumped to a 50D... wow the image is just like my old 350D for sharpness, my old 40D was soft. The new 50D is soooo much better, I even got a OK lens to be much beter with the micro adjust.


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griptape
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Jul 03, 2009 22:06 |  #10

Austin.Manny wrote in post #8220375 (external link)
No, the XT looks sharper.

Thanks for telling me my eyes are lying.




  
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Yaamon
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Jul 03, 2009 22:53 as a reply to  @ griptape's post |  #11

If you focused on the nose the XT is clearly sharper.

The 40D black eyes are sharper to indicate backfocus if the focus point was the nose.


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kitacanon
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Jul 03, 2009 23:05 |  #12

1. the left eye (right as we look at it) is sharper on the 40D
2. I do up the sharpening in DPP with my 40D...to 4-5 vs 3-4 on my 30D/xt


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NeoTokyo
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Jul 05, 2009 04:29 |  #13

The 40D looks as if it has backfocused.

The white fuzz on the left (Stitch's Right) eye is more in focus on the 40D than the XT where the nose is sharper on the XT and is softer on the 40D.


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apersson850
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Jul 05, 2009 04:36 as a reply to  @ NeoTokyo's post |  #14

Since the 40D supports live view, it's easy to check. Take a picture with AF, then another where you focus manually, using the ability to magnify the display view ten times to see perfectly.

The 40D is known for having a rather stong AA-filter, which makes images look a tad softer when they emerge from the camera. But they stand up to sharpening very well.

Also note that the configuration of the more advanced AF-sensor in the 40D may lead to a single AF point covering a different area than it does on the 350D.


Anders

  
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summerwind4
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Jul 05, 2009 07:46 as a reply to  @ apersson850's post |  #15

also agree that both shots are equally sharp. it's just that the 40D hits the focus a bit further back than your rebel as you see the hairs on the bottom of the chin are sharper in the 40D shot.
it's too bad that Canon didn't implement the MA feature into the 40D...............some​thing tells me they could though with a firmware update.


  
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40D unacceptably soft?
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