Respect. the image quality I can for example draw comparisons with the Panasonic 20mm 1.7 and the standard zoom 14-42 (Version 1). In both comparisons, the PZ performs very well, that leaves the other standard push behind him and is almost as sharp as the prime lens. Especially this situation made me to write this short review, I simply can not understand all the criticism of the optical quality of the lens. For the sake of mobility I am K30 switched last year from Pentax to the MFT system. Therefore, I can here for example, draw comparisons to good lenses on this system - and get themselves as to the conclusion that the image quality of the Panasonic PZ which is not inferior. And that with the portability. Maybe I got lucky with my only copy.
Sure, it's true: in cameras that do not face the Shuttershock problem, but so some pictures are blurred. And this occurs mainly for light lenses (yes, even with other lenses). Heavy lenses stabilize halt seemingly the body better. Ergo is the only "fault" of the PZ, too easy to be. And that really can not blame him but actually.
Conclusion: I have found nothing comparable in size and quality. Therefore, it is worth my opinion currently 5 Stars.