When comparing Olympus OM-D E-M10 III vs Nikon D850, the Slant community recommends Nikon D850 for most people. In the question“What are the best cameras?” Nikon D850 is ranked 5th while Olympus OM-D E-M10 III is ranked 28th. The most important reason people chose Nikon D850 is:
When using manual focus lens, you can turn on focus peaking to see which parts of the picture in in focus, as there will be a colour (by the default settings red) "painted" to tell you that that part of the picture is in focus
Specs
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Pros
Pro Focus peaking in live view
When using manual focus lens, you can turn on focus peaking to see which parts of the picture in in focus, as there will be a colour (by the default settings red) "painted" to tell you that that part of the picture is in focus
Pro Focus Shift stacking
Also know as focus stacking, this camera is able to do focus shift photography on its own after the set up, thus it will not be so tedious in terms of capturing the photo.
Cons
Con Expensive to get "faster" frame rate
While it ships with a standard frame rate of 7fps, to get to its full functionality of 9fps, you will need the hand grip, as well as the D5 grip battery and charger, which cost a lot more extra.