When comparing Nikon Z30 vs Olympus OM-D E-M5 II, the Slant community recommends Nikon Z30 for most people. In the question“What are the best cameras for photography under $1000?” Nikon Z30 is ranked 4th while Olympus OM-D E-M5 II is ranked 17th. The most important reason people chose Nikon Z30 is:
Unlike Nikon's Z50 and Z fc (using the same sensor), there's no 30-minute recording limit on the Z30.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro No 30-minute recording limit
Unlike Nikon's Z50 and Z fc (using the same sensor), there's no 30-minute recording limit on the Z30.
Pro Compact
Pro Good for vlogging
Pro Good kit lens
The Olympus M. Zuiko Digital ED 12-40mm f/2.8 Pro lens has a very good build quality and is fast across the full zoom range with a constant 2.8 aperture.
Pro In-body camera stabilization
The camera has a built in 5-axis stabilization.
Pro Weather-sealed
The camera is dust proof, splash proof and freeze proof. You shouldn't have an issue with electronics when shooting in rain and other harsh conditions.
Cons
Con Limited lens choices
Nikon's 'DX' Z-mount lens options are scarce at the moment.