So what you see here is what you can expect to get from each systems flagship camera. When we go out to shoot these cameras 95% of us use them in this way.auto exposure and auto white balance. As this is a test of cameras in real world use, I let cameras choose exposure and used AWB so we can see what to expect in the real world.The A7s is the Sony Flagship in the A7 line, and is closest in MP to the Olympus and Fuji. Was going to use A7II but it has many more MP and I had loaned it out to a friend for a few days so I did not have it.No jumping through hoops to help any brand. I used Adobe Camera RAW for ALL conversions which is what 95% of us use for our RAW files.These will be my preferences and may not be yours, which is OK. I will pick my personal preference winner after each test based on the test itself.

Used the 25 1.4 on the E-M1, 35 1.4 on the Fuji and 55 1.8 on the Sony.

ALL images are converted straight from RAW, WYSIWYG.

I shot each camera in the same way for each test, either hand-held or tripod.

For one test I will use each lens wide open to show DOF differences.

I set the aperture on each camera to match DOF of the smaller sensors the best I could for some tests.

I am using the E-M1, X-T1 and A7s for this test so take it as just that.

Just how much difference is there between Micro 4/3, APS-C and Full Frame when using the same or equivalent focal length? Sharpness, IS, color, detail, B&W conversions and more are tested here. Images and test descriptions will speak for themselves. This is as close as I will ever get to a “scientific test” while keeping it “real world”, and yes, it is what it is. Even so, whatever camera “loses” this test will have the fans of that brand attacking me, no matter which one loses. Should be entertaining in that regard as well. Even I was surprised at some of these results and I did each test fair and square according to my rules below, which have been my comparison rules for seven years because it shows REAL WORLD shooting (not nonsense that no one does when shooting an not pro studio or lit images from a shooter who is sponsored by a camera company). This was a blast to do, and shows the STRENGTHS AND WEAKNESSES of Micro 4/3, APS-C and Full Frame cameras, specifically the E-M1, X-T1 and A7s. MIRRORLESS BATTLE! Micro 4/3 vs APS-C vs Full Frame!

Lightroom vs lightroom classic sped