When comparing Fujifilm X-T1 vs Olympus OM-D E-M10 Mark II, the Slant community recommends Fujifilm X-T1 for most people. In the question“What are the best mirrorless cameras?” Fujifilm X-T1 is ranked 5th while Olympus OM-D E-M10 Mark II is ranked 7th. The most important reason people chose Fujifilm X-T1 is:
Good colors, lots of detail and little noise up to 6400 ISO (though Fujifilm's 6400 ISO is closer to 4000 ISO in other cameras). The camera adjusts the white balance pretty accurately in all kinds of conditions.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Great image quality
Good colors, lots of detail and little noise up to 6400 ISO (though Fujifilm's 6400 ISO is closer to 4000 ISO in other cameras). The camera adjusts the white balance pretty accurately in all kinds of conditions.
Pro Great viewfinder
It has a huge viewfinder with a 0.77x equivalent magnification. The size of the viewfinder allows for additional functionality such as displaying an enlarged image next to the overall image and turning the image to portrait view when the camera is turned sideways.
Pro Good auto white balance
Pro Good in-camera RAW conversion
Pro Quiet shutter
Pro Great focusing system
The focusing system is quick, it rarely if ever resorts to focus hunting and it's consistently accurate.
Pro In-body stabilization saves money on lenses
Since stabilization can be applied to any lense, you can save money by not having to spend it on stabilized lenses which are generally more expensive than non-stabilized lenses.
Pro MFT lens mount allows for a wide variety of lenses to choose from
Micro Four Thirds system is a standard used by Panasonic, Olympus, Sigma and many others so you're not locked into a having to buy lenses from one manufacturer.
Cons
Con Limited control over video
The camera will automatically adjust exposure. ISO and shutter speed is ignored. And so is exposure compensation past +/-2 EV. There's also no way to adjust aperture during recording, it has to be set before you start shooting.
Con Autofocus varies highly depending on lens used
X-T1 works amazingly well with internal focus lenses while being really slow with older X-system lenses.
Con ISO dial is inconveniently positioned
Con Menu system could be easier to use
The camera menu has 26 screen pages and dozens of subpages. Navigating through them to find what you need, can take a while.