« on: August 19, 2013, 07:57:31 PM »
Congrats on trip and gear!
I have been twice to Tanzania including Ngorongoro per Neuro, and I agree. I shot with 5DIII (full frame) and 50D (crop). The longest lens I had was 400 mm f5.6. I did fine for most of what I saw.
Rather than give you lens advice, let me give you some things to think about advice.
Second time I was there, I noticed this more than the first. There really are a lot of different types of tours. Some actually looked like double deck tour buses seen in cities. These were packed to the gills, and posed several problems. Relating to photography in particular, they were limited to roads (actually dirt ruts for the wheels). Animals could be very far away, and obviously you need long lenses. Additionally, they were so cramped, it would be difficult to pan without hitting someone.
Fortunately, my tours were on the other end of the spectrum. We had a driver and Range rover with I either 3 or 4 seating rows. Only two of us on the trip so we could spread out and shoot from the window (limited opening) or the roof which had a slide back tarp like thing. We had a row of seats between us so we could really move. The only limiting thing was weight restrictions on the plane which was like 12KG (~24 lbs- check your carrier).
So my non-technical advice to you is know what your touring conditions will be- will you get close to animals or not, will it be crowded or not? Know weight restrictions on plane. Get a bag that will fit even the smallest overhead so you don't have to part with your gear. Then get the best lens you can.
Most often I used 70-200, or 300. I also kept a shorter lens on second camera 24-105 in case something came up close. I didn't use the 400 all that much because we got very close, but there were time it helped. It was useful for birds, and even more reach would have been good, but I like the larger animals.