The Panasonic Leica DC Elmarit 50-200mm f/2.8-4.0 ASPH Lens provides visual consistency ideal for wildlife and outdoor photography. It features an equivalent zoom focal length of 100-400mm that associates with Leica for Micro Four Thirds cameras. The two ultra extra-low dispersion and two extra-low dispersion diminishes different types of aberrations, thereby delivering bright and crisp images. Nano Surface Coating is applied to the elements of the lens which lowers lens flare and ghosting. POWER Optical Image Stabilizer supports handheld shooting by suppressing camera shakes. The 9 rounded diaphragm blades ensure smooth bokeh effect. Shooting in inclement conditions is possible, thanks to its splash-, dust-, and freezeproof design.