In the previous post, I noted small (sub LSB) differences in average dark field images from compressed and uncompressed raw files from the Sony a7RII. This post repeats the testing and plotting for the a7II. I took a look at the mean values of a 200×200 central square of the same raw dark-field images that… [Read More]
Archives for November 22, 2015
Sony a7RII FW 2.0 raw dark-field mean values vs ISO
Jack Hogan, in a comment to an earlier post on the rms noise values of uncompressed and compressed Sony a7rII dark-field images, wondered if there was digital multiplication going on, and, if so, would the mean values be affected. I took a look at the mean values of a 200×200 central square of the same… [Read More]