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Archive 2009 · Image Quality: 7D vs 5D original ?

  
 
AnthonyR
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p.1 #1 · p.1 #1 · Image Quality: 7D vs 5D original ?


I have a 5d mark II and a 5d original. I read the image quality of the 5d mark II is better than the 7d, but how does it compares to the original 5d ? I want the features of the 7d, but I don't want to lose any image quality (low ISO noise, high ISO noise, dynamic range, etc). Based strictly on the quality of the files, is it logical to sell the 5d original to get the 7d ?


Oct 05, 2009 at 02:16 PM
gdanmitchell
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p.1 #2 · p.1 #2 · Image Quality: 7D vs 5D original ?


"File quality" is rarely, if ever, a reason to go from a larger format to a smaller one. There are reasons for moving in that direction, but the choice involves quite a few other factors.

Are you just looking for "better image quality?" If so, how do you define that and what do you do with your photographs?



Oct 05, 2009 at 02:23 PM
M Vers
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p.1 #3 · p.1 #3 · Image Quality: 7D vs 5D original ?


gdanmitchell wrote:
"File quality" is rarely, if ever, a reason to go from a larger format to a smaller one. There are reasons for moving in that direction, but the choice involves quite a few other factors.

Are you just looking for "better image quality?" If so, how do you define that and what do you do with your photographs?


He did specify ISO performance and DR so I'm assuming those are the major factors other than format/sensor size. As for the question, I do not know but from what others have been reporting it seems as though the 7D performs similarly to the 5D at high ISO although I haven't seen any direct comparisons for myself.



Oct 05, 2009 at 02:27 PM
Nick Nishizaka
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p.1 #4 · p.1 #4 · Image Quality: 7D vs 5D original ?


I would say the 7D is slightly better in terms of high ISO noise.

Apples and oranges really...



Oct 05, 2009 at 02:36 PM
Daan B
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p.1 #5 · p.1 #5 · Image Quality: 7D vs 5D original ?


AnthonyR wrote:
Based strictly on the quality of the files, is it logical to sell the 5d original to get the 7d ?


No. Well, maybe if you like to pixel-peep >100% on your monitor. But for printing the differences will hardly be noticeble. It is more logical to choose the right cam based on functionality.



Oct 05, 2009 at 02:42 PM
borderlight
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p.1 #6 · p.1 #6 · Image Quality: 7D vs 5D original ?


Same sensor vs. sensor mix, that's the question for me. I would continue shooting with the 5Ds. There is not much the 7D offers wedding shooters that isn't available with your present full frame cameras, if your web photographs prove anything.


Oct 05, 2009 at 03:21 PM
CarpeyBiggs
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p.1 #7 · p.1 #7 · Image Quality: 7D vs 5D original ?


i own both, and have shot both under the exact same situations, with the same lens. the 5d still produces better high iso images, at both 1600, and 3200.

the 5d is also much sharper at the pixel level. but that said, it's close, and in print, i'm not sure you'd notice much? haven't compared that though.

but the 5d still wins in the noise department.



Oct 05, 2009 at 03:33 PM
M Vers
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p.1 #8 · p.1 #8 · Image Quality: 7D vs 5D original ?


CarpeyBiggs wrote:
i own both, and have shot both under the exact same situations, with the same lens. the 5d still produces better high iso images, at both 1600, and 3200.

the 5d is also much sharper at the pixel level. but that said, it's close, and in print, i'm not sure you'd notice much? haven't compared that though.

but the 5d still wins in the noise department.


Mind posting some examples?



Oct 05, 2009 at 03:39 PM
CarpeyBiggs
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p.1 #9 · p.1 #9 · Image Quality: 7D vs 5D original ?


lemme see what i can dig up.

what do you want? high iso? or some decent light?



Oct 05, 2009 at 03:41 PM
M Vers
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p.1 #10 · p.1 #10 · Image Quality: 7D vs 5D original ?


CarpeyBiggs wrote:
lemme see what i can dig up.

what do you want? high iso? or some decent light?


If you've got the time and would like to put forth the extra effort perhaps you can whip up a quick comparison test in a controlled environment--something along the lines of ISO100, 400, 800, 1600, and 3200. If not I'd understand, but it would certainly be nice to see If you do decide to perform one remember to equalize resolutions.



Oct 05, 2009 at 03:44 PM
AnthonyR
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p.1 #11 · p.1 #11 · Image Quality: 7D vs 5D original ?


I shoot weddings and I would like a camera with better AF with at least the same image quality of the 5d original. I would use it as a second/back up camera, so I don't want to invest 5100$ on a 1d mark III.


Oct 05, 2009 at 03:47 PM
Matt Leitholt
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p.1 #12 · p.1 #12 · Image Quality: 7D vs 5D original ?


Then get a D3... Sorry couldn't resist.


Oct 05, 2009 at 03:50 PM
michael49
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p.1 #13 · p.1 #13 · Image Quality: 7D vs 5D original ?


AnthonyR wrote:
.... I want the features of the 7d, but I don't want to lose any image quality (low ISO noise, high ISO noise, dynamic range, etc). Based strictly on the quality of the files, is it logical to sell the 5d original to get the 7d ?


Your going to have to wait for the "3D" I'm afraid.

If you need the speed and AF then getting a 7D makes sense to me. If your shot is missed or out of focus then the IQ difference doesn't matter.





Oct 05, 2009 at 03:50 PM
abqnmusa
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p.1 #14 · p.1 #14 · Image Quality: 7D vs 5D original ?


michael49 makes a good point

I have a 5D (original) and am very happy with the IQ
5D only good for focusing with center focus point, or AI Servo with assist points
With the 5D I am focal length constrained with a 400mm lens.
I cannot afford a lens longer then the 400mm F5.6

I want a 7D for birding in decent light.
So if the 7D is good noise wise from 100-800 with better focus I will be happy.




Oct 05, 2009 at 04:03 PM
CarpeyBiggs
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p.1 #15 · p.1 #15 · Image Quality: 7D vs 5D original ?


ok, here's a very quick comparison. sorry, i don't have the patience, discipline, or desire to set up some very controlled experiment between the two cameras.

what


this is what the framing was for both cameras. both were shot at iso 100, 24mm on the 7d, 40 mm on the 5d, so the framing is comparable. defaults applied to both in lightroom, put them side by side and exported them as jpgs, uploaded to flickr. this is my best "real world' comparison, sorry it's not "controlled."

http://farm3.static.flickr.com/2426/3974207237_323e89262e_o.jpg

bottom line, in my experience: 5d is sharper, but has less resolution. 7d file seems punchier in color renditon, but not as sharp at the pixel level. i'll see if i can get some high iso comparisons done this evening. i haven't printed either, or reduced the 7d down to a 5d resolution to directly compare. i looked at the individual blades of grass in each file, and decided that the 5d resolves just as many as the 7d, and they look sharper. take it for what it's worth...

now, when it comes to general enjoyment using the 7d vs. 5d, it's no contest. the 7d is light years ahead. viewfinder, controls, live view, LCD, etc... no contest, 7d is a beauty.

couple of crops:

http://farm3.static.flickr.com/2531/3985223796_6e954783d7_o.jpg

http://farm4.static.flickr.com/3249/3985223672_988137b884_o.jpg



Oct 05, 2009 at 04:16 PM
Matt Leitholt
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p.1 #16 · p.1 #16 · Image Quality: 7D vs 5D original ?


Wow, the 5d is clearly better in the IQ department. However, we must also consider that diffraction is kicking in on the 7d at f/8.


Oct 05, 2009 at 04:32 PM
CarpeyBiggs
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p.1 #17 · p.1 #17 · Image Quality: 7D vs 5D original ?


and here are a couple ISO 1600 crops.

this is the scene...
http://farm3.static.flickr.com/2495/3985274870_6c5e68f22e_o.jpg

http://farm3.static.flickr.com/2589/3985274698_82c8925db5_o.jpg

http://farm4.static.flickr.com/3530/3984515563_76df58c0f1_o.jpg



Oct 05, 2009 at 04:35 PM
willis
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p.1 #18 · p.1 #18 · Image Quality: 7D vs 5D original ?


Not much signs of extra resolution with the 7D, just more noise.
Diffraction is no greater with a 7D than a 5D just that the 7D would hopefully resolve its effects more clearly which it obviously doesn't in these crops.
I presume the weak AA filter of the 5D is making it look sharper too. Just shows how sweet the 5D IQ is.



Oct 05, 2009 at 04:41 PM
Daan B
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p.1 #19 · p.1 #19 · Image Quality: 7D vs 5D original ?


Matt Leitholt wrote:
Wow, the 5d is clearly better in the IQ department. However, we must also consider that diffraction is kicking in on the 7d at f/8.


And the difference between 24mm and 40mm. And maybe a difference in focus. The ISO1600 crops are much less distinguishable when it comes to fine detail...



Oct 05, 2009 at 04:41 PM
M Vers
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p.1 #20 · p.1 #20 · Image Quality: 7D vs 5D original ?


Thanks, Dan I understand not having time/patience to mock up a controlled test, it's just tough to draw any conclusions with differing variables.

Edited on Oct 05, 2009 at 04:47 PM · View previous versions



Oct 05, 2009 at 04:45 PM
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