At just two inches long and 4.6 ounces (130 g) in weight, the Panasonic Leica DG Summilux 9mm f/1.7 ASPH. lens is ridiculously portable, making it a great wide angle option for Micro Four Thirds photographers and filmmakers. If you are looking for a wide angle lens with a wide aperture for your kit, check out this awesome video review that takes a look at the sort of performance and image quality you can expect from it in practice.