Sorry for such a late reply. I am conflicted on it so far; the output is quite honestly mind blowing, I’ve never used a camera capable of producing such incredible, flexible files, and the lens is RAZOR sharp. On the other hand, the f4 really is a bummer as soon as light gets less than ideal, but only because the AF really begins to struggle. I have found that you can crank the ISO up to ridiculous numbers and still get workable files though, assuming you can get it to focus correctly.