Originally posted by DDoram The K5IIs and Rokinon lens had a polarizer while the Sigma didn't. That would account for some of the colour differences.
Dale
I quit using polarizer filters on my digital cameras years ago due to strange and unpredictable color rendering.
Steve
---------- Post added 10-24-14 at 02:15 PM ----------
Originally posted by DDoram However, the photos were taken just minutes part so light is very similar. My point was more to show sensor tonality variations as I admitted in my original post that the K5IIs was not focussed as well as it should have been.
According to the exif,
the two photos were taken almost an hour apart (13:03 for the K-5 IIs and 13:58 for the Sigma)
The K-5 IIs shot is underexposed and the mountain is fully shaded as well. Bleh...
Quite simply, the Sigma shot had a superior subject to start with and benefited by better technique. That being said, it is an impressive image regardless of any comparisons being made. The K-5 IIs image would not have survived the first cull in my flow.
Steve