The two lenses I used on this trip were a Tamron 18-270mm lens for wider shots and cases (like the mokoro boat ride) where I couldn't easily switch lenses, and a Sigma 150-500mm for the majority of the animal shots. The latter is a great lens - big enough to give you some good magnification but light enough to use handheld.
I did also take a third, older 70-300mm lens to be kept at camp on a spare body in case of accidents, but this didn't, in the end, have to leave the bag.
The two lenses I used on this trip were a Tamron 18-270mm lens for wider shots and cases (like the mokoro boat ride) where I couldn't easily switch lenses, and a Sigma 150-500mm for the majority of the animal shots. The latter is a great lens - big enough to give you some good magnification but light enough to use handheld.
I did also take a third, older 70-300mm lens to be kept at camp on a spare body in case of accidents, but this didn't, in the end, have to leave the bag.
I will add those to my list of things to try. While I've been leaning towards the Sony platform of late (specifically, the A7RII) I haven't been overly impressed with the lenses. But having very recently been bitten by the wildlife photography bug, there's lots to learn still!