The Tamron 28-200mm F/2.8-5.6 (Model AFA071S-700) is the world’s first all-in-one zoom to achieve a maximum aperture of F2.8 at the 28mm wide-angle end. Despite covering a wide range of focal lengths, the lens is lightweight and compact, making it convenient to bring along for all your picture taking needs. When combined with a compact, lightweight full-frame/APS-C mirrorless camera, it allows photographers to capture virtually every scene they encounter in daily use, travel, sports and nature. Tamron did not compromise on optical performance. The use of special lens elements—including LD (Low Dispersion) and XLD (eXtra Low Dispersion)- help suppress chromatic aberrations, making it possible to achieve high image quality from edge to edge. With a MOD (Minimum Object Distance) of 0.19m (7.5 in) at the wide end and 0.8m (31.5 in) at the telephoto end, the lens also offers high-level close-up shooting performance. The AF drive system is powered by the RXD (Rapid eXtra-silent stepping Drive) stepping motor unit to deliver high-speed, high-precision performance. The lens also features Moisture-Resistant Construction and Fluorine Coating for added protection.

The 17-70mm F/2.8 Di III-A VC RXD (Model AFB070S700) is a large aperture everyday zoom lens for Sony E-mount APS-C mirrorless cameras. Fast, sharp, quiet, and small—this new APS-C zoom lens is extraordinarily versatile and perfect for everyday photography. The lens was created to achieve a broad zoom range and excellent image quality. With a focal length range of 17-70mm (a full-frame equivalent of 25.5-105mm), it’s the world's first 17-70mm F2.8 standard zoom lens with a 4.1x zoom ratio for APS-C cameras. The 17-70mm F2.8 includes Tamron's proprietary VC (Vibration Compensation). When shooting video, by utilizing AI technology, image stabilization performance improves compared to conventional models. Designed specifically for use with APS-C mirrorless cameras, the lens is light weight and compact, even with VC. Its small size and versatility make it a great choice for outdoor, travel and vacation photography, where compact camera bags are preferred, and of course for daily use. Additionally, photographers / users can take advantage of a close working distance. It features an MOD (Minimum Object Distance) of 0.19m (7.5 in) at the wide-angle end and 0.39m (15.4 in) at the telephoto end. The lens is equipped with Tamron’s RXD (Rapid eXtra-silent stepping Drive) AF drive system, a high-speed, precision stepping motor unit. It also incorporates a wide variety of other features, including Moisture-Resistant Construction and Fluorine Coating for added durability. In your everyday life and on your trips to distant places, this lens captures all the excitement and discoveries with the finest possible detail.

The optical design of the Sigma AF 28-70mm f/2.8 DG DN is based on the 24-70mm F2.8 DG DN | Art, which is renowned for its outstanding optical performance throughout its zoom range. True to the Contemporary line's core concept, the 28-70mm F2.8 DG DN | Contemporary was developed to offer the right balance of performance and portability, and as such, this large-aperture standard zoom delivers outstanding image quality that rivals Art line lenses in a body light enough for day-to-day use. Building on state-of-the-art technology, the 28-70mm F2.8 DG DN | Contemporary has an advanced optical design that includes three aspherical, two FLD, and two SLD elements. In short, the Sigma 28-70mm F2.8 DG DN | Contemporary combines all of the key optical features required of a large-aperture standard zoom lens, which are essential for photographing a wide variety of subjects in a range of shooting conditions.