Canon's highest-resolution DSLR — 50.6MP full-frame with no optical low-pass filter for maximum detail.
The Canon EOS 5DS R was released in 2015 as a 50.6MP full-frame DSLR with a cancelling low-pass filter — the 'R' suffix indicates the OLPF effect is optically cancelled, delivering marginally sharper fine detail at the cost of slightly higher theoretical moiré risk on fine repetitive patterns. Identical to the standard 5DS in all other respects. 5fps burst. LP-E6 battery (~700 shots). Approximately 930g with battery and card.
50.6MP full-frame CMOS sensor. Cancelling low-pass filter (OLPF effect nullified). 5fps continuous burst. 61-point AF (cross-type centre). No video — wait, yes video: 1080/30fps H.264 (MOV). LP-E6 battery rated ~700 shots (OVF). Body weight approximately 930g with battery and card. Dual CF/SD card slots. Weather sealing.
The 5DS R's cancelling OLPF is the sole differentiation from the standard 5DS: the optical effect of the low-pass filter is neutralised by a second filter with opposite effect, leaving the same number of physical filters but eliminating their anti-aliasing function. The result is marginally higher resolution rendition of fine detail. At 50.6MP, the resolution ceiling is set by the sensor, not the OLPF — the 5DS R exploits this resolution for subjects without moiré-prone fine patterns.
On the used market the Canon EOS 5DS R is available at high-resolution professional Canon DSLR pricing. Condition checks: shutter count via EXIF, LP-E6 battery health (shared with 5D Mk III/IV, 6D series), dual CF/SD slot contacts, and weather sealing. Compatible with all Canon EF and EF-S lenses.