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FORUMS Canon Cameras, Lenses & Accessories Canon EOS Digital Cameras 
Thread started 23 Sep 2008 (Tuesday) 15:26
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iso 3200 side by side 40D vs 50D

 
ccp900
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Oct 08, 2008 07:31 |  #181

wow, those images look the same to me. makes me happy i kept my 30D hehehe. Im ready to move to FF....but with this nagging little voice in my head saying its not worth it right now (to get the 5dm2) im getting really confused.....


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tharmsen
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Jan 25, 2009 21:08 |  #182

http://rolandlim.wordp​ress.com …/30/canon-eos-50d-review/ (external link)

Scroll about 1/4 of the way down where the author does a very comprehensive test between the 50D and the 40D.

It would appear the 50D has a clear advantage over the 40D in terms of resolution at all ISO ranges. Note how he compares them in their native form (not resized) then he upscales the 40D image to the same resolution as the 50D images and the advantage of the 50D becomes crystal clear... at least to me.

ISO 1600 (50D left, 40D right):

IMAGE: http://rolandlim.smugmug.com/photos/383621217_F2Uh8-O.jpg

ISO 3200 (same arrangement):

IMAGE: http://rolandlim.smugmug.com/photos/383621247_ycDLM-O.jpg

ISO 6400 (same arrangement):

IMAGE: http://rolandlim.smugmug.com/photos/383624862_efpXo-O.jpg

ISO 12800 (same arrangement):

IMAGE: http://rolandlim.smugmug.com/photos/383621485_oL5iX-O.jpg

For reference, here's the ISO 1600 before the upscaling of the 40D images:

IMAGE: http://rolandlim.smugmug.com/photos/383622841_dycVe-O.jpg

You can see the rest at the link above.

So, clearly there is a distinct advantage to the 50D's capabilities in terms of image performance throughout the ISO spectrum.



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Nervous
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Jan 25, 2009 21:58 |  #183

great tests, thanks for sharing! obviously, 50D has advantage over 40D, even having 50% more pixels.

PS. Image tag for ISO 6400 is broken, the link is ok, though.


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jwcdds
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Jan 25, 2009 22:26 |  #184

Wait just a minute here...

So you linked the review, posted his comparison photos, but decided to omitted his findings/comments?

"Again, I can’t really see much difference in noise level between the 2 cameras at ISO 1600 and 3200. Although, the 50D crops seemed to showed more details. At ISO 6400 and 12800, the 50D again showed less noise compared to the 40D, but paradoxically, the 40D crops seemed to be sharper and showed a little bit more detail."


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tharmsen
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Jan 26, 2009 05:51 |  #185

jwcdds wrote in post #7187485 (external link)
Wait just a minute here...

So you linked the review, posted his comparison photos, but decided to omitted his findings/comments?

"Again, I can’t really see much difference in noise level between the 2 cameras at ISO 1600 and 3200. Although, the 50D crops seemed to showed more details. At ISO 6400 and 12800, the 50D again showed less noise compared to the 40D, but paradoxically, the 40D crops seemed to be sharper and showed a little bit more detail."

Wait just a minute, you can't look at the pictures and decide for yourself what the outcome of the comparison is? You need someone else to tell you? If that's the case, why bother looking at the pictures at all? Just scroll to the bottom, avoiding the pictures, and read what he has to say.

I didn't omit anything, I supplied the link to the full article.

I see a marked improvement in the 50D's images over the 40D's. Perhaps you don't. Even looking at the unscaled picture(s) I see more noise in the 40D's images and I see no more detail than I see in the 50D's.

All things being equal, the 50D give us 50% more pixels with AT LEAST the same resolution and noise levels, I say it looks better in the sample images provided. I don't see how you could look at them and not see what I see. Regardless, that's quite an achievement on the 50D's part. I now have something I sorely lacked with my 40D, and that's room to crop without loss of resolution. Not to mention the 50D is going to make nicer prints, crop or not.




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Slug_breath
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Jan 26, 2009 07:51 |  #186

I thought the max ISO on the 40D was 3200?
how come there are pictures at 6400, 12,800 for comparison?


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TeamSpeed
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Jan 26, 2009 07:58 |  #187

Slug_breath wrote in post #7189469 (external link)
I thought the max ISO on the 40D was 3200?
how come there are pictures at 6400, 12,800 for comparison?

Shoot in raw, set EC -1, then edit Raw and put +1 on exposure = 6400
Do the same, but -2, then +2 = 12800

I did this 6400 testing in a thread last year, you might find it interesting.
https://photography-on-the.net …17&highlight=IS​O+6400+40d


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Slug_breath
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Jan 26, 2009 08:11 |  #188

TeamSpeed wrote in post #7189500 (external link)
Shoot in raw, set EC -1, then edit Raw and put +1 on exposure = 6400
Do the same, but -2, then +2 = 12800

I did this 6400 testing in a thread last year, you might find it interesting.
https://photography-on-the.net …17&highlight=IS​O+6400+40d

Interesting, but not really a fair comparison.


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Jan 26, 2009 08:20 |  #189

Slug_breath wrote in post #7189560 (external link)
Interesting, but not really a fair comparison.

Why exactly? This is all the H mode is doing now. ISO 3200 is effectively just 1600 (40D's max ISO) pushed down one stop and brought back up, but the camera does it for you. So if this is not fair, then comparing the 50D's 3200 to the 40D's is also not a fair comparison.

The 50D does this one better over the 40D, it gives you two pushed ISO modes (H1 and H2), doing the same thing but starting at its max ISO 3200. H1 is -1/+1 by the camera to give you 6400 and H2 is -2/+2 to give you 12800.


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tharmsen
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Jan 26, 2009 08:56 |  #190

TeamSpeed wrote in post #7189595 (external link)
Why exactly? This is all the H mode is doing now. ISO 3200 is effectively just 1600 (40D's max ISO) pushed down one stop and brought back up, but the camera does it for you. So if this is not fair, then comparing the 50D's 3200 to the 40D's is also not a fair comparison.

The 50D does this one better over the 40D, it gives you two pushed ISO modes (H1 and H2), doing the same thing but starting at its max ISO 3200. H1 is -1/+1 by the camera to give you 6400 and H2 is -2/+2 to give you 12800.

Well put, and right on.




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braidkid
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Jan 26, 2009 10:04 as a reply to  @ tharmsen's post |  #191

Enjoy your new camera Tharmsen. To my eyes, the 40D has less noise than the 50D above. At the end of the day you won't be able to tell difference between these two bodies, but if 5 extra megapixels, micro lens adjust, VGA screen, etc is worth it, more power to you...


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Jan 26, 2009 11:03 |  #192

braidkid wrote in post #7190171 (external link)
Enjoy your new camera Tharmsen. To my eyes, the 40D has less noise than the 50D above. At the end of the day you won't be able to tell difference between these two bodies, but if 5 extra megapixels, micro lens adjust, VGA screen, etc is worth it, more power to you...

And the AF is a bit more snappy as well. I noticed that when I had a 50D for about a week. It is indeed a great camera. I really don't care for the CA mode, and would have rather had a C3 like the 40D.


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tharmsen
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Jan 26, 2009 11:47 |  #193

TeamSpeed wrote in post #7190518 (external link)
And the AF is a bit more snappy as well. I noticed that when I had a 50D for about a week. It is indeed a great camera. I really don't care for the CA mode, and would have rather had a C3 like the 40D.

I'm with you there. I think the CA mode is better suited for the Rebel series cameras than the 50D. I will miss the custom slot... a little.

The AF is snappier and with the ability to customize each lens (like with the 1D), it's more accurate.

Like I said, the worst case scenario is that you gain 50% more pixels with no loss of image quality or ISO sensitivity. What I see in the pics and everything I've read indicates the 50D is better at higher ISO's. I've also noticed that high ISO images I shoot around the house look better, especially when cropped.

The 50D will produce nicer prints from 4x6 all the way up to poster size than the 40D.

What pushed me off the fence was the LCD screen really. That was my major sore spot with my 40D. If all things were equal, the $300 I paid upgrading was worth the LCD alone. It's now usable for really seeing the pics I've just shot. I can now, with confidence, review a picture and delete the ones that aren't exactly what I want. With my 40D I found myself keeping images I was unsure of until I viewed them on the computer. This isn't something that everyone cares about, obviously.




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Jan 26, 2009 11:58 |  #194

tharmsen wrote in post #7190747 (external link)
...What pushed me off the fence was the LCD screen really. That was my major sore spot with my 40D. If all things were equal, the $300 I paid upgrading was worth the LCD alone. It's now usable for really seeing the pics I've just shot. I can now, with confidence, review a picture and delete the ones that aren't exactly what I want.. .

Micro-focus was the feature that pushed me off of the fence, but it's turning out that the one feature I am most pleased with is the rear LCD. It is much more usable for both review and live view.


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Jan 26, 2009 13:42 |  #195

gjl711 wrote in post #7190818 (external link)
Micro-focus was the feature that pushed me off of the fence, but it's turning out that the one feature I am most pleased with is the rear LCD. It is much more usable for both review and live view.

I wonder if Canon then changed the thumbnail settings or how the image review works now? The old screens were fine enough for reviewing pics if they were indeed displaying the actual shots or higher res thumbnails. In any case, the screen is just generally nicer and sharper, with the menu redesign, interface tweaks, and the better image viewing. I agree 100%.


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iso 3200 side by side 40D vs 50D
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