I’ve noted before in this series of posts that the M240 has an unusually low noise floor at ISOs 200, 400, and 800, with ISOs 1600 and 3200 producing more reasonable values. Today I tried to do some modeling to figure out what was going on. Here’s the program (in Matlab), with the values entered… [Read More]

Now I’d like to quantify the effects of the blue/green shifts in the shadows that sometimes occur upon pushing M240 images. I’ll be comparing two sets of images, one that I created, and one sent to me by friend whose name I won’t mention, since he values his privacy more than the adoration of a grateful… [Read More]