« on: August 26, 2012, 12:01:15 PM »
You need two bodies, one for the sake of not having your body failing you in the middle of the savannah, and two it is not ideal to change lenses when there is a huge chance of getting dust on the sensor.
As regards lenses, I usually go for a fisheye, an ultrawide (ideal would be TS-E) for landscape work, the 70-200 mm f2.8 IS II and a prime around the 400 mm or 500 mm range for mammals, longer for birding. Add an extender into the mix and you should be fine, together with the usual amount of memory cards (as many as you can), spare batteries and a way to backup on the savannah (a portable CF card reader like the Epson) and a portable hard drive for when you are back at camp.
The DO I never found to be really sharp for wildlife, the 400 mm f/2.8 IS I blows it out of the water (and also blows your shoulder to carry!)