The Sony Alpha 7R was revolutionary at the time of its release and delivered outstanding image quality in a compact form. Michael Topham finds out if the Sony Alpha 7R II is a significantly improved successor
Sony Alpha 7R II Review – Image Quality: Dynamic Range
At the Alpha 7R II’s lowest native sensitivity, our dynamic range figures measured 13.1EV at ISO 100. This sensational readout puts it ahead of the Sony Alpha 7R, which measured 12.4EV at the same sensitivity. Results remain above 12EV right up to ISO 800, indicating there should be plenty of additional shadow detail retrievable from raw files. Beyond ISO 800, results drop slightly to 11.5EV at ISO 1,600 and 10.2EV at ISO 3,200. Pushing up to ISO 6,400 sees the dynamic range drop to 8.5EV, indicating that detail in dark areas of an image is increasingly lost to noise. As the chart above illustrates, figures remain above the critical 6EV right up to ISO 51,200, only dropping below at ISO 102,400.