Kirk T writes:
The language they use in describing the “R” version is strange, with respect to the low pass filter -
"Maximizing the potential of the new 50.6 megapixel sensor – for the first time in an EOS camera the low-pass filter effect in the EOS 5DS R model is cancelled. The cancellation of the low-pass filter helps deliver sharp images, squeezing the most out of every pixel.”
It is difficult to tell from this language if the low pass filter is removed or if there are software algorithms that are performing deconvolution (or similar) in-camera to “remove the effect” of the low pass filter that remains in place.
Really weird description and, of course, all of the web blurbs that have come out today all quote the same strange phasing.
DIGLLOYD: lenses are designed for a certain thickness sensor cover glass. I interpret this to mean that (like Nikon), Canon is maintaining the sensor cover glass thickness in a manner similar to that taken by Nikon D800E; a wave plate and an “undo” wave plate.
Canon’s Chuck Westfall provided this visual explanation below.