TCampbell
Been spending a lot of time on here!
- Joined
- Mar 31, 2012
- Messages
- 3,614
- Reaction score
- 1,556
- Location
- Dearborn, MI
- Can others edit my Photos
- Photos OK to edit
DxOMark - Compare cameras side by side 6D, 5D MkIII, 5D MkII
For those who subscribe to DxO...
Be aware that DxO considers their scoring system to be "secret sauce". They absolutely will not disclose what factors go into that score. But what's more, they also don't fully disclose their testing methods (they describe it at a high level, but with enough ambiguity that you don't quite know what exactly they mean by "we test the sensor".)
They do perform some things to images which you'd probably rather wished they would disclose to you before you accept the scores at face value. For example... when they test noise, they don't feel it's fair that small micron sensors tend have more noise than large micron sensors even though the smaller micron size sensor might be providing more resolution... so they resample the images to reduce high res images to the same res as low res cameras before scoring them. Unfortunately it's not possible to resample an image without smoothing out noise... so you're sort of invalidating a test. It's largely accepted that there's a bit of a trade off between resolution and noise, but DxO's testing doesn't accurately reflect that. What's worse... they don't actually DISCLOSE that.
DxO is probably a rough indicator but don't put too much stock in their results.