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Thread started 23 Sep 2008 (Tuesday) 15:26
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iso 3200 side by side 40D vs 50D

 
Naturalworldphotographer
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Sep 23, 2008 15:26 |  #1

I tried the 50D today in jessops! Looks great, feels very sturdy (not any more so than the 40D though) and operated in very much the same way. The autofocus to me seemed identical to the 40D (single shot mode, using one focus point) The biggest change regarding operation or usability is definately the screen which looks really nice. In menus it isn't really noticeably different, but viewing photos is a different matter, lines are much sharper and more defined, it's easier to see the focus and such...it looks beautiful in live view too. It looks like a print, but lit up, rather than a screen. :P

Anyway, so I did some shots of the same scene using the same settings (I shot in jpeg and raw) but for the moment I only have iso3200 side by side with the 40D using standart picture styles and AWB, but the same exposures. I'll try to get some more up shortly, if people are interested.

IMAGE: http://i33.tinypic.com/20u7kg3.jpg

There is the full (uninteresting) scene. :P As taken with the 40D

IMAGE: http://i35.tinypic.com/2lc4emr.jpg

Here are 100% crops with the 50D on the left and 40D on the right, you can see that the 50D shot is closer in due to the extra resolution.

I focussed both on the words "great savings" using magnified manual focus liveview. The 50D image looks soft to me - but I'm positive the focus must be slightly offor at least different. :/

NR was turned off for both.

(both were taken with the 17-85mm lens, and it was resting on a shelf, I did my best to replicate the scene with the other camera.

Ashley Taylor
Canon 5D and a few nice lenses. Sony RX100 is there too! :)

  
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Sfordphoto
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Sep 23, 2008 15:28 |  #2

any chance you can downsize the 50D to 10mp and put the side by sides up again?

thanks :). right now i am preferring the bottom right picture, but i think its because the bottom left picture is "enlargened" by the extra mp


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Naturalworldphotographer
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Sep 23, 2008 15:28 |  #3

yep 1 minute :P


Ashley Taylor
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S.Horton
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Sep 23, 2008 15:29 |  #4

Are they the same sensor technology?


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deeeez
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Sep 23, 2008 15:31 |  #5

NWP you've obviously looked at these closely on your monitor, they look pretty much identical to me. What are your impressions?


Love this forum, even though I shoot with dark side. :D
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Naturalworldphotographer
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Sep 23, 2008 15:37 |  #6

IMAGE: http://i34.tinypic.com/2czeukj.jpg

Here the 50D has been downscaled to 10mp. Again 50D on the left and 40D on the right.

Ashley Taylor
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Sep 23, 2008 15:39 |  #7

I can't tell the difference except for the price you're paying for things in the UK vs the USA.

;}


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deeeez
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Sep 23, 2008 15:40 |  #8

NWP, thanks for taking the time to post these. There is a little improvement in color saturation though on the background of the 50D picture...


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Naturalworldphotographer
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Sep 23, 2008 15:41 |  #9

deeeez wrote in post #6366704 (external link)
NWP you've obviously looked at these closely on your monitor, they look pretty much identical to me. What are your impressions?

Well I'm gonna have a look at the other photos I took, i have the same scene at iso 800, 1600, 3200 for 40D and 50D and iso 6400 and 12800 for the 50D. In fairness, the 50D's images look slightly cleaner at pixel level, and would look cleaner in a print I would think due to the higher res. I'll do that in the next few days. Also I think iso 6400 on the 50D looks quite nasty but potentially usable, and the noise wouldn't worry you too much if you printed a passport sized photo at iso 12800 with the 50D, otherwise, it's a blizzard.

On the 50D shot above, it looks decidedly softer than that of the 40D - but I'm going to compare all the other shots I took and have a look at the other 50D photos of other things before making any judgements.


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deeeez
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Sep 23, 2008 15:42 |  #10

can you post some 6400 and above samples when you get the chance please?


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Sfordphoto
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Sep 23, 2008 15:46 |  #11

wow that was fast, thanks NWP

you are right about the softness of the 50D...i can't read "leather compact case" as well

the noise looked comparable at the per pixel level, but now that you downsized the 50D, the noise looks a little better on the 50D, for example the blue area below save 5 pounds and the area on the bag just to the right of save 5 pounds


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gjl711
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Sep 23, 2008 15:56 |  #12

What settings were these taken at? f/stop? speed? I'm wondering if the softness is due to diffraction starting to impact the image due to the much smaller pixel size.


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n1as
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Sep 23, 2008 15:58 |  #13

I see very little diff. 40D is sharper and has slightly more noise but the difference is almost ESP, it's that small. I'm really glad to see these images. It will keep me from selling my 40D to "upgrade" LOL!


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X-WoodButch
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Sep 23, 2008 15:58 |  #14

gjl711 wrote in post #6366848 (external link)
What settings were these taken at? f/stop? speed? I'm wondering if the softness is due to diffraction starting to impact the image due to the much smaller pixel size.

Comes up at F5 1/250


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n1as
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Sep 23, 2008 15:59 |  #15

gjl711 wrote in post #6366848 (external link)
What settings were these taken at? f/stop? speed? I'm wondering if the softness is due to diffraction starting to impact the image due to the much smaller pixel size.

EXIF says 1/250 at f/5 for both.


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iso 3200 side by side 40D vs 50D
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