Highly rated mirror-less cameras for 2015 include the Olympus OM-D E-M1, Leica M 240, Samsung NX1 and Sony Alpha 6000, according to PCMag.com. Each product has a 4.5 star rating on Amazon.com and generally positive reviews.
The Olympus OM-D E-M1 is a high-end mirror-less camera that can shoot in all types of light at fast speeds. The Leica M 240 is a top of the line camera with superior imaging, but is expensive. The Samsung NX1 can shoot in 4K Ultra High-Definition video and is designed for quick focusing. The Sony Alpha 6000 is a lower cost option that still offers high-speed shooting and high-quality images.