I have tested several lenses for my Panasonic Lumix GX 7 and have decided for this. The expensive 100-300 could not convince me because it personally for this camera is too big for me and the image quality did not meet my expectations (War in the past by my Canon L lenses, however, very spoiled). The good Olympus dropped out due to the lack of stabilizer. This lens excited by size, weight, image quality, quick zoom and very good stabilizer. The workmanship is very good for this price range, it is pleasantly smooth. My recent photos are consistently all good. It blends very well with my GX7 and thus has the smuggling with the SLR equipment an end. From 100 mm the performance drops slowly which is quite normal. Conclusion; a highly recommended Tele good lighting conditions at a fair price.
!!! Worth mentioning is that in this objective the lens hood is included in delivery here !!!