Canon EOS 5DS & EOS 5DS R The Canon EOS 5DS and EOS 5DS R are fraternal twins, sharing the same body, 50.6-megapixel sensor, 61-point autofocus system and an ISO range of 100-6400. Externally, they’re identical, and internally, they’re virtually identical, with the difference being that the Canon EOS 5DS R cancels out the camera’s anti-aliasing filter—the optical element that reduces the chance of closely spaced parallel lines seeming to blur together (or moiré), but also reduces sharpness—to create an image that’s slightly sharper than the 5DS, but has greater risk of suffering from moiré. List Price: $3,399 (5DS); $3,599 (5DS R). usa.canon.com Ansel knew that if you wanted to capture an incredibly detailed image of a subject, you needed incredibly high-resolution equipment. In his time, large-format film photography provided the ultimate in image resolution, thanks to both the massive size of the photographic negative and the resolving power of the lenses. These combined to create a ..