Camera Make: Canon
Camera Model: Canon EOS 400D DIGITAL
Image Date: 2007:10:05 16:29:26
Flash Used: No
Focal Length: 210.0mm
CCD Width: 22.28mm
Exposure Time: 0.0016 s (1/640)
Aperture: f/5.6
ISO equiv: 100
White Balance: Auto
Exposure: Manual
Exposure Mode: Manual

I had a problem with my sensor being dirty, so the chaps at POTN helped me clean it :-D

The Corners looked a tad smudged :-(

Which lense are you using?

Quote from: KunalWhich lense are you using?

http://www.mir.com.my/rb/photography/hardwares/classics/eos/EF-lenses/EF80200mmf28L/index1.htm (2nd one down)
http://www.bobatkins.com/photography/reviews/best_canon_eos_lenses.html
http://photo.net/equipment/canon/70-210

Doh, Was supposed to have posted a 100% cropped version of the fullsize original

Quote from: EggtasticoThe Corners looked a tad smudged :-(

I think the shading might be vignetting from having the lens at maximum zoom.

Quote from: Danny UK

Quote from: EggtasticoThe Corners looked a tad smudged :-(

I think the shading might be vignetting from having the lens at maximum zoom.

Nope, Ive had a problem with the sensor being dirty, so I was testing after cleaning the lense.
After shooting a white background, there was a lot of dirt in the corners where I hadnt cleaned, but pushed the dirt
http://www.microsoft.com/windowsxp/using/digitalphotography/prophoto/sensorcleaning.mspx