DxOmark had taken Pentax 645z to the testing centre. During the test, the Pentax 645z impressed us more, scored 101marks, more than any other mirrorless, DSLR and compacts cameras available in the market. The RX1R II also secured 97 marks, proved itself and incredible camera of Sony.
Words of DxOmark:
The new RX1R II achieved an excellent DxOMark score of 97 points, with individual scores of 25.8 bits for color sensitivity, a wide 13.9 EVs dynamic range at base ISO (albeit slightly lower at base than the best tested), and a very good low-light ISO score of 3204 ISO. In terms of rankings, only the Pentax 645Z with its physically larger 43.8 x 32.8mm CMOS sensor (nearly 1.7x the surface area of a full-frame 35mm sensor) is ahead by just over a half-stop in noise levels.