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Best telephoto lens for the canon eos 5ds r?

For the 5DS R, I'd start with the Canon EF 70-200mm f/2.8L IS III USM. It's the most flexible pick, good for sport, portraits and general telephoto work, and it's stabilised, which matters because the body has no stabilisation of its own.

If you need more reach for wildlife, the Canon EF 100-400mm f/4.5-5.6L IS II USM is a sensible step up. For serious distance, look at the Canon EF 200-400mm f/4L IS USM Extender 1.4x. On a budget, the Sigma 150-600mm f/5-6.3 DG OS HSM Sports gives plenty of reach.

For subject ideas and how to choose, see wildlife and sport.

Written by Claude from this site's pages.

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