Originally posted by Rondec But, if the conditions are consistent across brands then they should be comparable.
I find that people who don't like DXO Mark results usually do so because their chosen cameras don't do as well as they would like. Pentaxians loved DXO Mark when it said that the K5 was the top of the heap, but were much more down on them when the K3 came out and was middle of the pack with regard to sensor performance.
I find that people who read and trust DXO lab tests before doing their own tests are very much influenced by the chart results that they see and even if they do try to make a comparation between cameras after they read DXO results, their mind/opinion is already influenced by those charts. You don't have to believe me. Just pick 2 cameras that you don't know anything about, with similar specs, and do some comparation tests in 2 or 3 real life shooting conditions. Write your findings and conclusions and then see if they match the DXO charts. You may have some surprises.
Do you know why almost everybody who doesn't shoot Pentax thinks that Pentax af is so bad that it can't track a snail? Because even if they have the chance to shoot with a K-3 or with a K1 and a 70-200mm lens, in their mind Pentax is so bad at tracking because they saw DPreview or Tony Northrup review, or they read about it on the internet. In their minds already is a partial conclusion in which Pentax has poor af. This has a lot of influence on them when they are performing af tests. One way of making them change their opinion is to shoot with the Pentax gear next to them while they are shooting with Nikon, Canon, or whatever camera and get better results at the end of the tests. Only then Tony Northrup, DXO and DPreview influence starts to dissapear.
---------- Post added 02-26-18 at 02:29 PM ----------
Originally posted by photoptimist The measurements of sensor performance taken under "perfect conditions" tell you exactly how the sensor will behave under imperfect conditions.
I don't agree, but I may be able to prove it with a D610 vs D750. Both have 24mp, both are full frame cameras and I can borrow both from my friends... If I get the chance to go out this weekend, I will send you the raw files.