Best lenses for the Canon EOS 5DS R: Optics for travel, wildlife & portrait photography - DXOMARK
200DL Underwater Housing for Canon EOS 5D Mark III, 5D Mark IV, 5DS, 5
Canon's 5DS and 5DS R have 50-megapixel sensors
K&F Concept Nik to EOS Lens Mount Adapter, Compatible with Nikon Nikkor F/AI Mount Lens and Compatible with Canon EOS EF EF-S Mount Camera Body: Amazon.co.uk: Electronics & Photo