 The only negative comment at that time was that the Z 6 offers only a single XQD card slot; such cards were still quite expensive at the time and a single slot does not provide any "backup security".The Digital Photography Review site rated the camera's sensor as providing excellent resolution and high ISO performance, "though on rare occasions you may see banding if shadow areas are brightened ...While fine detail isn't as well preserved at low ISO or at high ISO as the best of its peers, the Z6 generally strikes a nice balance between noise and detail.