The Canon EOS 5DS and EOS 5DS R (known as the EOS 5Ds and EOS 5Ds R in Japan) are two closely related digital SLR cameras announced by Canon on February 6, 2015. Both are professional full-frame cameras with 50.6-megapixel sensors, the highest of any full-frame camera at the time of announcement. The only difference between the two models is that the sensor of the "R" version includes an optical filter that cancels out the effects of a standard optical low-pass filter. This distinction is roughly similar to that between Nikon's now-replaced D800 and D800E (with the E having a self-canceling filter). Canon stated that both the 5DS and 5DS R will not replace the older EOS 5D Mark III, so therefore both the 5DS and 5DS R will have their new positions in Canon's DSLR camera lineup.
At the time of the announcement, estimated prices were US$3,699.00 and US$3,899.00 (EOS 5DS and EOS 5DS R), with an announced date of availability, through authorized Canon retailers, in June 2015.