David Arbogast wrote in post #17485830
Anyone pre-ordering their 5DS or 5DS R on Monday? I think I will, although I am still waiting to see Sony's (hopefully soon) 50 MP announcement.
A 50 MP Sony with a superior sensor and a markedly lower price will be tough to pass on, even though there are those other factors I will likely prefer about the 5DS R.
SonyAlphaRumors have a SR5 rumour (historically 100% accurate) of new Sony E-mount releases in late March-April, which includes an A7r successor. Then there is also the A9 series later in the year.
Looks like I may be running a split system for the forseeable future, with the 5Ds for wildlife photography and the A7rII or A9r for everything else (using manual focus), sharing the same lenses.
Hopefully Sony get their act together and get rid of the lossy RAW compression in favour of a lossless or uncompressed one (which they previously used in A-mount cameras). SD cards are cheap, but shooting trips to recapture what was missed last time are not. Otherwise I might well buy the D810's successor with 14-24, Sigma 35, Sigma 50/Otus 55 and Nikon 70-200, leaving Canon purely for wildlife photography with long lenses (since I'd be using completely different focal lengths for each sort of photography, I wouldn't be duplicating lenses by running multiple systems). The loss of the tilt-shift lenses would hurt, but I'd still be able to run them by using a Sony A7rII as a backup/second body to the Nikon.