Sigma has announced it will release three new lenses this spring, including a 18-50mm F2.8 EX DC macro, 28-70mm F2.8-4 DG, and 500mm F4.5 EX DG/HSM telephoto. According to Sigma, the 18-50mm lens, "has a large aperture of F2.8 throughout the entire zoom range, a minimum focusing distance of 20cm and a maximum magnification of 1:3, making it ideal for close-up photography," while the 28-70mm lens, "has a large aperture of F2.8 at 28mm focal length and yet it is compact and lightweight, with an overall length of 62.5mm and weight of 255g. This compact, large aperture zoom lens is ideal for digital and 35mm SLR cameras." The 500mm ultra-telephoto "has a fast maximum aperture, and also features a new super multi-layer coating, which optimizes the characteristics of digital SLR cameras." The 28-70mm currently has a MSRP of $180 and the 500mm $5400.