I think this image shows how sharp it is and I am really pleased with the results.
The only post production done on this image was Auto Tone in Photoshop then saved out as a jpeg at the best quality.
Camera: Canon 450D
Shutter Speed: 1/400 sec
Exposure Program: Aperture priority
Focal Length: 400mm
Image quality: Canon RAW
Image Size: 4272 x 2840 px