A photographer on a board that I read gave some anecdotal comparisons of the Nikon D4 and M240 as low light cameras. That prompted me to try to do some analytical comparisons of my own. It didn’t turn out to be all that simple. Stay with me and see. I thought to compare signal to… [Read More]
Archives for September 15, 2013
Details of the modeling of the Leica M240
There have been a few requests for an explanation of the noise floor simulation in the previous post. Here it is. The program uses a model of a digital camera that’s illustrated below in one-pixel form: Light falls on the back-biased photodiode causing electrons to be released. The electrons charge the capacitor. The buffer amp… [Read More]