Get Sony RX1R II at B&H Photo. Strongly recommended: optional Sony LHP-1 lens hood (56% off today!) to protect the front of the lens (and as a secondary consideration, stray light) as well as at least three Sony NP-BX1 batteries.
This aperture series from f/2 through f/11 studies the Sony RX1R II in detail at medium distance from near to far, offering a good look at lens symmetry, sharpness and depth of field, and overall rendering quality.
Includes images up to 24 megapixels as well as very large crops, all from f/2 through f/11.
RX1R II v1.0 firmware. Settings: Shading Comp = Off, Chro Aber Comp = Auto, Distortion Comp = Off, SteadyShot = off, LENR = Off, LPF Effect = Off, Pre-AF = Off, manual focus. 2-second self timer, uncompressed raw format.