When comparing Canon 5DS / R vs Nikon D810, the Slant community recommends Nikon D810 for most people. In the question“What are the best full frame DSLR cameras?” Nikon D810 is ranked 1st while Canon 5DS / R is ranked 9th. The most important reason people chose Nikon D810 is:
It's fast and decisive both in good light and in low light. It accurately recognizes faces and focuses on the nearest eye.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Flicker detection
The camera can detect flickering light sources and sync up with them to shoot at peak brightness in order to avoid underexposing the image by accident.
Pro Good autofocus system
61-point autofocus system with 41 cross-type points that performs well in low light. In addition, 5 central autofocus points turn into dual-cross-type points with fast (f/2.8 or faster) lenses increasing the precision even further.
Pro In-camera timelapse
Pro Excellent build quality
The 5DS/R has a magnesium alloy shell that makes it durable.
Pro Programmable Auto ISO
Pro Natural skintones
Pro High resolution
50.6 MP compared to 22.3 MP for the 5D Mark III.
Pro Great autofocus
It's fast and decisive both in good light and in low light. It accurately recognizes faces and focuses on the nearest eye.
Pro Flat color profile for video
A flat color profile captures footage in low contrast and higher dynamic range allowing for easier color grading in post-production.
Pro Quiet
Cons
Con Limited video capabilities
No HDMI output, no headphone socket.
Con Dynamic range could be better
According to tests performed by DxOmark 5DS / R has 12.41 stops of dynamic range in print and 11.08 stops on screen for images taken at 100 ISO while cameras in this price range commonly push 14 in print and 13 on screen.
Con Low max ISO
The cameras go up to 6400 (or 12800 in extended) ISO.
Con AF subject tracking could be better
Con Low-light performance could be better
Con Images at base ISO nosier than competition
Con Settings banks don't save all settings
Certain settings including AF and Advance modes can't be saved to settings banks and thus can't be recalled.
Con Lacks peaking for video
Focus peaking is not present in D810.
Con Poor AF in video mode
Con Subject tracking starts having issues in burst mode
Con Low-light performance could be better
Con Electronic 1st curtain can only be used in Mirror Up mode
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