Here is a quick fun test, see if you can spot which of these cameras has a FULL FRAME sensor, and which has a tiny M4/3 sensor. (crop sensor)
What difference does the sensor size make?
Cameras featured are the Sony a7s
and the Panasonic GH4
Both fitted with a Canon EF 50mm lens at f1.8 throughout.
Both with the same WB, same distance, same f-stop, same ISO (200) only the shutter speed varies in order to achieve similar exposure.
Note - the gh4 is using a metabones XL speedbooter for EF mount.
![](https://i.ytimg.com/vi/SWzZ2rDTTFc/maxresdefault.jpg)