For the past few days, I’ve been reporting on the “ISOlessness” of three cameras — the D4, D810, and alpha 7II — using a metric that I devised which, given an ISO range and a shadow level, returns the signal-to-noise ratio (SNR) of that level at the highest ISO in the range and at all the… [Read More]
Archives for December 23, 2014
D4 and D810 ISOlessness
I went back to the D4 and D810 data sets and ran the ISOlessness test on them without any data set scrubbing. Here are the results with a target mean of 0.01 for ISO 6400 for the D4 and ISO 4000 for the D810 (the tested ISOs are two-thirds of a stop apart because the… [Read More]