Leica APO-Summicron-SL 50mm f/2 ASPH. Lens is a prime lens suitable for travel photographers and photography enthusiasts. Still, it possesses an incredible optical design, multi-layer coatings, and Dual Syncro Drive stepping motor, all of which contribute to outstanding image quality for any comparable prime lens! Leica APO-Summicron-SL 50mm f/2 ASPH. is a bright prime lens that provides a classic normal-length field of view and an impressive set of optics. It is designed for full-frame L-mount mirrorless cameras. Its noteworthy aspects are its f/2 maximum aperture, multi-layer coatings, and Dual Syncro Drive stepping motor. Our Take on the Leica APO-Summicron-SL 50mm f/2 ASPH. Lens: The f/2 maximum aperture leads to a portable form factor by balancing the overall weight and size. However, its compact design doesn't affect its performance as the aperture offers high speed that results in high-quality imagery in various available light conditions. As it is a prime lens, it is excellent for everyday use and perfect for photography enthusiasts and travel photographers. The optical design comes with three aspherical elements that reduce spherical aberrations and distortion and render high sharpness. Further, the lens also incorporates an apochromatic optical design, comprising and anomalous partial dispersion glass that suppresses color fringing and chromatic aberrations. All these contribute to greater clarity and color accuracy. The lens elements are also covered with multi-layer coatings that limit flare and ghosting when contrast increases due to strong lighting conditions. Along with fantastic optics, the lens also possesses a Dual Syncro Drive stepping motor that renders fast and quiet autofocus performance ideal for both stills and video applications. Finally, the AquaDura coating applied to the exposed elements and the seals incorporated in the lens design make the lens ideal for harsh environmental conditions