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« on: February 12, 2013, 01:55:59 AM »
Hi there,
I live out in Tanzania and spend a fair bit of time in the parks. Something to consider is the dust - imagine living inside a talcum powder bottle; that's the Mara in August... With that in mind, I'd advise against changing lens as much as possible - I actually don't change lenses 'til back at home.
I'd put the 100-400 on the 7D - you can't get enough length for wildlife, ever... This gives you huge reach. I wouldn't worry about the slower aperture on the 7D, most of what you'll be snapping will be in (very) bright light... Bring a bean bag though - tripods are a bit useless for in-car shooting (you can't get out in the Mara) - and the 100-400is system is not all that amazing.
On the 5Diii I'd shove your 70-200. Useful for low-light for early morning drives, you can get wider shots (useful in the mara, you'll see...) and about as good iq-wise as you can get on the EOS system. It'll also stop the dust getting in your 5dii (hopefully)
As for wide, the G15 will do you very nicely. With decent light, you'll get very good images. Just remember to give the lens a wipe every now and again...
Finally, I take a huge kitbag, including heavy tripod, nearly everywhere on internal African flights. Never had a problem. Rules seem to be that if you can carry it, you can take it on board with you...
Hope that helps...