Photo by Dan Bracaglia The Sony Alpha 1 introduces the next generation of full-frame stacked CMOS from Sony Semiconductor. It’s the second chip of its type following the one in the a9, and with it comes improved readout speeds on the order of 5ms or faster, enabling flash sync speeds of 1/200s with electronic shutter as well as decreased rolling shutter and risk of banding under artificial light, and focus and exposure calculations at 120 times per second. This silent electronic shutter underpins the camera’s 20 and 30 frames-per-second (fps) burst modes. With our in-depth review ongoing, we wanted to take a look at whether these sensor capabilities came at the cost of other imaging attributes of the a1’s sensor; particularly, its dynamic range capabilities. Class-leading dynamic range With the launch of the a9, we found a slightly unexpected decrease in dynamic range . We say ‘unexpected’ because we’ve grown accustomed to cameras using Sony Semiconductor’s sensors offering high dynamic range (i.e. low noise) and had gotten used to exploiting this in our photography. It appeared the a9 traded off dynamic range – by dropping readout bit-depth we surmised – to achieve high read speeds ( nearly 1/160s according […]
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