Comparison of Canon EF 300 f/2.8L IS, EF 300 f/4L IS, EF 70-200 f/2.8L IS and the Canon 1.4 Mk II & 2.0 Mk II TCs

Conditions
30D, RAW, MLU, remote cable release, tripod (Slik ABLE 300DX) equipped with the standard Slik quick release head, IS was off on the 3 lenses, ISO 100 The camera was allowed to stabilize between sets then 3 shots were taken allowing 6 seconds between shots. The 3rd photo from each set was selected for conversion.

Photos were converted with DPP v 3.3, exposure was increased +1 EV, all other parameters were set to zero. Converted photos were cropped in Photoshop CS2 with the Marquee tool to 700 x 700 px with no resizing, resampling or other processing.

Finished crops were saved as JPG quality level 12 and brought into the final composite file, which was saved as JPG quality level 12.

Legend
2.8 = 300 f2.8L IS with 1.4X TC (420mm actual)
4.0 = 300 f/4L IS with 1.4x TC (420mm actual)
7-2 = 70-200 f/2.8L IS with 2.0 TC (400mm actual)