The real star in my lens collection is the Zuiko 50-200mm with which I have taken some of my best photos ever. It is also the most expensive lens in my collection but quality of this caliber unusually comes at a price to match. I have no reason to complain however as I have taken some truly outstanding photos with this lens. I actually have trouble using my other lenses after using this one because the photos all look faded and blurred in comparison to the outstanding image quality of the Zuiko. The most common (and about only) complaint that I have heard about this lens is weight. While it is true that this is not a light lens I believe that the trade off was worth it for the superior build quality and excellent images it produces. This is a clear example of why the saying “you get what you pay for” is not always a bad thing.
The Panasonic 7-14mm is mostly associated with quality (pictures). I think it is because of its amazing features and mostly its optical performance. This lens has great vignetting control (above f/4), superb chromatic aberration control, it is very sharp both on the centre and on the borders, wonderful distortion control, extremely smooth zoom ring (the length of the lens does not increase during zooming) and has very fast and accurate autofocus performance. However, due to all these greatness in this lens, it is quite expensive. Compared with other ultra wide angle lenses, this perfect lens has the best build quality. It has the perfect build for the Micro Four Thirds cameras. Its shape and compactness are very attractive. The zoom ring on this lens is extremely smooth. The front element on the Panasonic 7-14mm lens is made to bulge outwards which improves the optical quality. The lens is also protected properly due to the perfect build in this lens. Therefore, you do not need to worry yourself so much about its safety.