Measuring read noise is fine, but by the time you can see the read noise, the photon noise is usually pretty bad. In fact, for me, the photon noise is more important as a measure of practical image quality. Here’s a test that shows the combined effects of photon and read noise as a function of… [Read More]
Archives for July 8, 2014
Focus peaking on the a7S
Although I’ve never liked it when the camera’s on a tripod, focus peaking has great potential with the camera handheld. That’s because it offers the chance to focus without zooming in and losing the context of he whole image, a. Also, if it’s sensitive enough, you should be able to focus at the taking aperture,… [Read More]