first of all, thanks for the great website! ;-)
When using the studio comparison tool with different cameras, say the Olympus XZ1 (max. f1,8-2,5) and the Sony NEX F3 (max. f3,5-5,6), do I have to compare them at say ISO 400 and 1600 respectively (doing only JPEG comparisons)?
To me it seems like I should, because the XZ1 is approx. 2 stops brighter. Or are there so many other variables involved (like sensor, jpeg-engine, etc.) that an answer to this is not as simple?