08-29-2016, 07:08 AM
Think about the setup: To really compare lenses, this should be done with only one sensor - how many different ones are on the market, each with it's own characteristic / colour profile? How many of them are only for one mount type? Fuji-modified, Sony, Nikon modified sensors, not to mention Foveon with it's own characteristic - what good is it to have a reference of a Fuji lens if you cannot mount it on a Canon?
In theory it could be equalized with colour profiles (to a certain limit), yes, but, Toni-A, you seem to believe there are no factory tolerances? If you want to profile a certain combination, do so, but don't expect you could just take the measured profile of one lens /sensor combination and transfer it to your needs.
Think also about the test equipment : who would calibrate it, what would be the costs and what would be the benefit for most of us. After all, color rendition is only one of a lot of other factors and only needed for high fideltity reproductions of existing pictures. Which is basically forbidden if not explicit permitted. Each other set-up, sunlight, monlight, etc. has no standard-lighting but lots of colour reflections. I can't see a real reason to take and pay this effort.
In theory it could be equalized with colour profiles (to a certain limit), yes, but, Toni-A, you seem to believe there are no factory tolerances? If you want to profile a certain combination, do so, but don't expect you could just take the measured profile of one lens /sensor combination and transfer it to your needs.
Think also about the test equipment : who would calibrate it, what would be the costs and what would be the benefit for most of us. After all, color rendition is only one of a lot of other factors and only needed for high fideltity reproductions of existing pictures. Which is basically forbidden if not explicit permitted. Each other set-up, sunlight, monlight, etc. has no standard-lighting but lots of colour reflections. I can't see a real reason to take and pay this effort.