- Nov 2, 2016
The problem is that if you’re testing a component, you need to test that component. So whi,emthe resulting combo will tell you about that, it doesn’t tell you anything about how it will perform as part of another combo. When Canon comes out with a high resolution body, the combo will have to be tested. So the concept tells us nothing.a lens is often sued long after another body is acquired. While testing that lens with recognized methods will give us a good idea how it performed independently, and therefor how it will likely perform on another o]body, just testing it on one body, a lower resolution one doesn’t really help.All true, but it is important to keep in mind that at the end of the day, it is the system that takes pictures, not a bare lens. From that perspective, there is value in reporting results from camera + lens combinations.
Having said that, part of DxO’s implied logic was that it didn’t really matter if the Canon 24-70/2.8 was better as a bare lens than the Nikon counterpart since each lens could only be used on the same brand of camera body. Thus, the higher-scoring sensor of the D850 makes the Nikon combo ‘better’. But mirror less cameras kick that argument to the curb, since in that case you can use a Canon lens on a Nikon MILC or vice versa, or either brand of lens on a Sony MILC. That means the highest possible scores (without getting into whether or not that really means “better“) should be obtained by combining the highest scoring mirrorless sensors with the lenses having the best optical measurements (not scores). Except that DxO only tests within-brand combinations.