Used maybe 5 times and then I bought lumix 85mm 1.8 , so sigma is no longer needed. The Sigma 56mm F1.4 DC DN Contemporary Lens in L-Mount is a high-quality standard lens designed for cameras. With a maximum aperture of f/1.4, this lens offers excellent low-light performance and beautiful bokeh. Made by Sigma, a reputable brand known for producing top-notch lenses, this model is compatible with 66.5mm front lenses and features auto focus capabilities. Ideal for photography enthusiasts looking for a versatile and reliable lens, this Sigma lens is a great addition to any camera collection.