What's This? Help Me!

[cbtoday]

I realised my pictures show dirt, I thought the lens is not clean, so I clean it, but it's still there, so I try another lens, it's still there, same spot! So what is going on? Is the sensor dirty or something is wrong with my 20D??? Please help me. Here is the picture...

http://flickr.com/photos/55992561@N00/98372515/

http://flickr.com/photos/55992561@N00/98372515/

http://flickr.com/photo_zoom.gne?id=98372515&size=o

[kevin_c]

Dirty sensor...
Do a search on these forums for the best method to clean it, there has been loads of posts about this.