Interesting,clear, and to-the-point review. Still hesitating between this lens and the TTArtisan 17mm 1.4. The latter is hard to find in stock, here in Belgium and The Netherlands. I'm guessing it will be this lens.
Hey Aslan what's up bro? Full frame has a wider field of view compared to APSC and MFT because of sensor size. For example if you were to put 17mm apsc on a full frame, it would really be about 12mm on the full frame...16mm MFT is 35 equivalent as full frame because taking a wider lense and putting it against a small sensor, that will actually crop the field of view and turning the picture into a 35mm. This tactic works for wildlife photographers because they can take a 70-200mm lease and put it on a smaller sensor to turn it into 120-400mm something like that. That gives them ridiculous focal length advantages. the smaller the sensor size is, the more in camera crop you'll get. Hope that cleared it up the confusion for you.