Carl Zeiss has announced the Apo Sonnar T* 2/135 telephoto lens, which it will be showing at the Photokina trade show in Cologne later this month. This premium manual focus optic uses a floating focus system to maintain high image quality at all distances down to 0.8m. It uses anomalous partial dispersion glass elements to minimize chromatic aberrations, resulting in an apochromatic design. This lens will be available for Canon and Nikon DSLRs.
Sigma APO Macro 180mm F2.8 EX DG OS HSM lens is an image stabilized telephoto macro lens. The company claim it is the first 180mm macro to combine 1:1 reproduction with an F2.8 maximum aperture. It offers a closest focusing distance of 47cm (18.5 inches) and includes the company’s optical stabilization and ‘FLD’ fluorite-like glass elements. An internal focus design and ring-type HSM focus motor allow full-time manual focus override. This telephoto macro lens is compatible with most manufacturers, including Sigma, Canon, Sony, Nikon, Olympus, Panasonic and Pentax.