Is there a technical fault with my 30D, samples inside.

asim18 · 8 May 2008 at 17:14

Well, ever since my bro baught his 30D Kit a while back, the image quality has been terrible, extremely bad noise, fringing, Chromatic aberration, etc..

So my bro baught a "Luxury" lens the other day thinking it was down to the crappy Kit lens, cannon provide. But im pretty sure the Chromatic aberrations have gotten worse.

D40x with kit lens on left, 30D with 17-40mm L on right.

Can someone explain whats wrong here, coz my brother is really annoyed, spending over a grand and still getting beaten with my cheap plastic d40x.

V-Spec · 8 May 2008 at 18:46

From the samples you have provided the images all look awful, you sure its all setup properly? 17-40 is a cracking lens and takes great pictures..

If you post some bigger examples of the images (800x600/1024x768) it might be clearer as to what the problem is

Schizophonic · 8 May 2008 at 19:07

Is there something you can do with a firmware update?

ichabod crane · 8 May 2008 at 19:08

Maybe it cant use it properly? are images of the same exposure did his hand shake on one more than the other? the 30D is heavier than the d40, silly questions aside your examples dont offer significant information two controlled shots with tripod to reduce shake and the same focal lengths and exposures with an exif would assist with a diagnosis. Was the camera bourght new? or second hand?

asim18 · 8 May 2008 at 19:26

Both cameras were at ISO 100, 1/400th, Cropped 100% from RAW file using ACR and photoshop, and saved as 100% Jpeg.

30D was F4.0/40mm and D40x was F5.6/55mm

Only thing i did was reduce the size of the d40x pic, so it would match the 40mm focal length of the 17-40mm.

i'd be happy to take some more tomorrow morning.

Oh and both cameras were brought brand new.

alexisonfire · 8 May 2008 at 19:39

For a controlled test, make sure you use a tripod that cannot move, a remote shutter release or timed release so camera shake is completely out of the equation, and that the focus point is identical for both cameras.

30d + 17-40 use
40mm iso100 f/8

d40x + 18-55 use
42mm iso100 f/8

asim18 · 8 May 2008 at 19:53

Thanks alex, i'll do that tomorrow morning. I'll even ditch the tripod for the d40x to make sure camera shake completely is out of the equation.