Olympus OM-D E-M1 Mk3 review: Technological powerhouse
Sensor size. Yes, it still matters. The Olympus OM-D E-M1 Mark III is part of the Micro Four Thirds format system, which uses a smaller sensor size than you’ll find in many other competitor DSLR and mirrorless cameras. But this sensor format is both its Achilles' heel and its launchpad. On the one hand, a larger sensor would mean greater light gathering capacity and resolution potential. But it also means added bulk - something this Olympus doesn’t suffer....