Here’s the average value of the standard deviation of noise floor in the central 90% of the image vs ISO at 1/30th second: If the amplifiers and the analog to digital converters in the a7 were perfect, and all the read noise came from the sensor array itself, then the read noise would double every… [Read More]
Archives for February 18, 2014
Testing the Sony a7, part 1
Well, it’s not really part 1, since I did some shutter shock testing earlier. But now I know that the camera’s vibration is no problem, I’ll give it my regular testing regime. [Added later: If you’re interested in the a7 noise floor in single shot mode, look here. If you care that the a7 becomes… [Read More]