i think caleb uses a 1D2 or 1D3, not sure which, but quite certain is APS-H.
Guys, download an EXIF plugin and you can see this info:
Exif IFD0
* Camera Make = Canon
* Camera Model = Canon EOS 5D
* Last Modified Date/Time = 2008:12:27 00:47:57
Exif Sub IFD
* Exposure Time (1 / Shutter Speed) = 1/80 second = 0.0125 second
* Lens F-Number/F-Stop = 22/10 = F2.2
* ISO Speed Ratings = 3200
* Original Date/Time = 2008:12:14 14:50:42
* Shutter Speed Value (APEX) = 6321928/1000000
* Shutter Speed (Exposure Time) = 1/80 second
* Aperture Value (APEX) = 2275007/1000000
* Aperture = F2.2
* Flash = Flash did not fire, compulsory flash mode
* Focal Length = 35/1 mm = 35 mm