Image quality based on our early assessment of these new lab samples looks very good. (We should also have some other sample images posted by the end of tomorrow as well.) Per the note above, RAW files are uploading now, and we'll post an updated thumbnails page tomorrow with links to them. Image quality could therefore still change between this and shipping retail samples, but it looks awfully darned good, and we've posted a First Shots set of lab sample images for readers to download and pixel-peep to their hearts' content. We've now received a unit that produces fully-shareable images, although it's still considered a 'beta' sample.
We had our first, very early sample of the Canon 5DS R 50MP monster a few weeks back, but the firmware was at an earlier stage of development, so we could only share crops with readers. Update, 05/06: RAW files for our First Shots are now available. We've posted staight-out-of-camera JPEGs for the moment RAW file downloads will be available tomorrow provided our ISP connection doesn't melt down in the process now. (Editor's Note: RAW files from this 50MP camera, as you can imagine, are very large.