Sigma is expected to release a new Sigma 28-105mm f/2.8 Art lens in September. The lens will be for E and L mount with an 82mm filter and will weigh less than 1kg, which is lighter than competitors. Sigma lenses can be purchased from B&H Photo and Amazon. Related posts: Sigma 28-105mm f/2.8 Art is … Continue reading Sigma 28-105mm f/2.8 Art Coming in September