R5 Pixel Shift rumor

Victor Engel wrote:

Ali wrote:

Ali wrote:

Karl_Guttag wrote:

1. whether it is true
2. whether they deal with motion in the scene,
3. whether they deal with camera motion, or if it requires the camera on a tripod,
4. whether the compositing is done within the camera or with external software (like the deal with focus stacking), or it is an option.
5. whether they save RAW or JPEG or if it is an option
6. how many frames save, or if that is an option. More frames would support dealing with more complex motion (camera or scene).

Good questions. #5 would certainly be a concern for me (I like to have RAW for all cases)

I guess thinking about this a bit more, even if Canon did add Pixel Shift to the R5, it seems highly unlikely they would add a new RAW mode for the new pixel count images that would generate.

What new pixel count? If they are shifting one pixel to get around the Bayer issue, you'd have the same number of pixels. Because of the AA filter, I doubt a half pixel shift would gain anything useful. Someone can correct me if I'm wrong about that.

Well, if you do a nice shifting pattern, an AA filter can be counter-productive, as it is no longer needed because shifting itself can be anti-aliasing.  That doesn't mean that shifting is useless for a sensor that already has an AA filter, though.  It still increases resolution and reduces aliasing, which happens easily enough in the red and blue channels despite an AA filter.

Of course, not all shift patterns are created equal, and some may leave significant artifacts and fail to approach a virtually analog image.  Shifting an AA-less sensor to 4 positions to create no increased pixel resolution but full color at each pixel, for example, still leaves significant potential for aliasing, as each resulting pixel is still non-overlapping with its neighbors; a box sample.