strange noise problems at high iso on 20d

OOID · Feb 20, 2006

i understand that at high iso one is going to have lots of noise. i am no stranger to noise and i even want it sometimes for some of my shots. the grain is especially nice in black and white shots. this noise on my digital is not the noise i have grown used to with my tmax p3200. this noise (on my 20d) is not uniform if you know what i mean.it is liniar. it has these, sort of, "noise lines". i have seen other shots on the net shot at 3200 on a 20d and they did not seem to have the same issue. the reason why i am posting this is i want to know wether or not to send my 20d in for repair because i still have a couple of months on my 1yr warranty left. any help would be appreaicted.

these are links to the photos. (warning: huge files)
they have to be big because i have tried making them smaller and the detail is lost.

http://mastermindmagazine.com/pictures/noise1.jpg
http://mastermindmagazine.com/pictures/noise2.jpg
on noise2 especially look at the pickguard.

Rob · Feb 21, 2006

Looks absolutely fine to me, you shot your 20D at 1/80th of a second, F4 in aperture priority mode at 3200 ISO, with no flash at 70mm - it's going to be noisy.

Rob

Digital Matt · Feb 21, 2006

Digital noise will never be comparable to tmax 3200. If that's what you are expecting, you'll be dissapointed every time. That looks just like the noise I get at 3200.

darich · Feb 21, 2006

Doesn't look any different from my 20D either.

markc · Feb 21, 2006

I do see some things that look like horizontal streaks, but nothing that stands out as abnormal. I don't have a 20D to do a dirrect comparison though.

OOID · Feb 21, 2006

Digital Matt said:
Digital noise will never be comparable to tmax 3200. If that's what you are expecting, you'll be dissapointed every time. That looks just like the noise I get at 3200.

i guess i wont be throwing away my film body after all

the reason i went digital in the first place is because i dont have access to a darkroom anymore.
oh well.

Big Mike · Feb 21, 2006

There are noise reduction programs. Have a look at Neat Image and Noise Ninja.

On the other end, if you want grain...you can take a sharp shot at lower ISO and add a grain type effect with Photoshop.

markc · Feb 21, 2006

Big Mike said:
There are noise reduction programs. Have a look at Neat Image and Noise Ninja.

On the other end, if you want grain...you can take a sharp shot at lower ISO and add a grain type effect with Photoshop.

Good idea. Those shots don't look like they need anything near 3200.