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40D - Banding at ISO 3200?

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summerfunk

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I'm currently choosing between the 40D and A700.
Today I tried out both in Bic Camera, Japan.

I only had a small CF card, so could take many samples.
However on one of the three 40D samples, I noticed horizontal banding.

Download the original at: http://public.fotki.com/summerfunk/dslr-high-iso-samples/img7209.html
The horizontal banding can be seen in the hair.

To the current 40D owners, how common is this?
 
Can't you post a larger version? Kinda hard to see at that size.

On my 40d, I see banding in the shadows at 3200 depending on the pic. Not all the time, but sometimes. It's really too bad because, if properly exposed, the pics look fine (except for those horizontal lines in shadow areas).
summerfunk said:
---> so could not take many samples.

Apologies for the typo.
Click to expand...
 
Original now available. Apologies - it's my first time to use Fotki. I didn't realise I needed to specifically enable the original to be available for download.
 
I downloaded the full size image and didn't notice any remarkable banding on my very good CRT monitor may be a LCD could reveal it especially if calibration is poor

BUT, I do get such banding at 3200 ISO with my 40D

However, at print size you can't notice it, also the picture is better in RAW than in JPEG most of the time.

For me not an issue also beacuse you don't expectan A3 print of 3200 ISO shot in very low light (or if you do, then the camera is not adequate for this)
 
It doesn't look too bad to me. There is not much banding to speak of on my calbrated LCD. Remember at high iso all DSLRs show similar patterns most worse than Canons.
 
I couldn't see any banding in your shot at all on my monitor.

But to answer your question partly, at 3200 ISO there is more noise than at lower ISOs particularly in the shadows. This generally cleans up quite well with Noiseware Professional or similar.

I don't shoot that much at ISO 3200 so can't be much more help.
 
ohyva said:
There is pattern noise which naturally is horizontal aligned, but not any real bands as far as I'm judging these images.
Click to expand...
Correct - it's pattern noise.

Banding is a very different thing indeed.

Neither of 'em are very pretty, but pattern noise is far easier to fix in PP.
 
My concern is that the pattern seems to be in the form of horizontal lines. I took some more photos today with a different camera and they are the same.
Can that be adequately cleared with software?

100% crop from a photo today:

 
don't shoot at 3200....Simple. should be a last resort anyway no dslr that I have seen takes a decent shot at that iso, so use flash or get more light or faster lens, I mean, with such little light what do you expect.

Btw, 40d is a better camera than the a700 noise wise and in every area to be perfectly honest, any day of the week and twice on Sunday. Better screen on a700, but that's it. Way, far far better lens collection on the Canon, and easy to use. Best pictures on the market, look at the reviews. Do yourself a favour, get 40d and don't shoot iso 3200 and enjoy.
--
Forums are a wealth of knowledge.
 
Well, I don't want to get into mine is better than yours as the 40D is an fantastic camera. However I do personally prefer the A700. I do disagree with your point regarding ISO 3200. There are moments that it is nice to have the option (with some compromises in image quality). If you know what you are doing you can still get decent pictures for normal size prints. (And this applies both to the 40D and the A700).

Best Regards,

Lucas
 
I've also notice low frequency horizontal noise pattern in my 5D iso3200 shot, mostly in the dark gray region. It's not just for iso 3200. if I under expose at other high iso and push it +1~2V, I also notice such patterns.

Well it's certainly an issue making your pics unusable even in small size. So far I can tell 40D handles this better than 5D. I've heard that almost all digital cameras have such issues. I'm not sure since I haven't actually tried other cameras in high iso. It's be interesting to see how A700 handles the same situation.
 
Puppetzinc said:
don't shoot at 3200....Simple. should be a last resort anyway no dslr
that I have seen takes a decent shot at that iso, so use flash or get
more light or faster lens, I mean, with such little light what do you
expect.
Btw, 40d is a better camera than the a700 noise wise and in every
area to be perfectly honest, any day of the week and twice on Sunday.
Better screen on a700, but that's it. Way, far far better lens
collection on the Canon, and easy to use. Best pictures on the
market, look at the reviews. Do yourself a favour, get 40d and don't
shoot iso 3200 and enjoy.
--
Forums are a wealth of knowledge.
Click to expand...
LOL :) ignorant fanboyish cant get anyworse.
 
bogongbreeze said:
I couldn't see any banding in your shot at all on my monitor.

But to answer your question partly, at 3200 ISO there is more noise
than at lower ISOs particularly in the shadows. This generally
cleans up quite well with Noiseware Professional or similar.

I don't shoot that much at ISO 3200 so can't be much more help.
Click to expand...
The banding is worse when you under-expose from a lower ISO, lest anyone think they can avoid this by doing so. The only way you will get less banding at a lower ISO is to expose properly/normally at the lower ISO.

--
John

 
Agree - this thread has got nothing to do with 40d vs A700. Fact is, some of us have to shoot high ISO (for work). The horizontal patterned noise isn't always there and it's not the end of the world. It is what it is - another problem to work around.
moire said:
Puppetzinc said:
don't shoot at 3200....Simple. should be a last resort anyway no dslr
that I have seen takes a decent shot at that iso, so use flash or get
more light or faster lens, I mean, with such little light what do you
expect.
Btw, 40d is a better camera than the a700 noise wise and in every
area to be perfectly honest, any day of the week and twice on Sunday.
Better screen on a700, but that's it. Way, far far better lens
collection on the Canon, and easy to use. Best pictures on the
market, look at the reviews. Do yourself a favour, get 40d and don't
shoot iso 3200 and enjoy.
--
Forums are a wealth of knowledge.
Click to expand...
LOL :) ignorant fanboyish cant get anyworse.
Click to expand...
 
pz797_mizzou said:
Well it's certainly an issue making your pics unusable even in small
size. So far I can tell 40D handles this better than 5D. I've heard
that almost all digital cameras have such issues. I'm not sure since
I haven't actually tried other cameras in high iso. It's be
interesting to see how A700 handles the same situation.
Click to expand...
All digitals seem to have this to some extent; the question is how strong is it relative to the other noises? Many cameras have stronger banding than the Canons, but you don't notice it because the 2-dimensional noises are relatively stronger, and dominate over the 1-dimensional banding noises.

--
John

 
To paraphrase what others are saying, it is 3200 and what do you expect? ISO 3200 is there for a reason and should be used as required or as creative desires demand but the technology is limited and one should expect some type of noise, especially at 100% viewing.

There is not a noiseless ISO 3200 digital camera on the market. There are varying degrees and different pattern types of noise but at this time, there will always be noise at that sensitivity.

--
I will never photograph a cockroach.
http://droppingin.smugmug.com/
 
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