To go with Sony's new compact and lightweight Alpha dSLR's announced today are four new DT series lenses. Designed for use with APS-C sized sensors, the new entry-level DT lenses have built-in-lens autofocus motors. The Smooth Autofocus Motor provides quiet, smooth autofocus with the new compact Alpha bodies.
Sony announced a pair of new compact, lightweight kit zoom lenses: The DT 18-55mm f3.5-5.6 standard zoom lens has aspherical and ED (extra-low dispersion) lens elements. The DT 55-200mm f4-5.6 telephoto zoom lens has an ED lens element and its long range make it good for sports. They are available separately or in camera kits.
There are also two new compact DT series constant aperture prime lenses providing more creative control. The DT 50mm f1.8 is a fast 50mm lens, long a favorite in traditional photography. It is good portrait lens with its fast 75mm f1.8 35mm equivalent and shallow depth of field. Also announced is the 30mm f2.8 macro lens for getting the close-up shots. Both lenses have the built-in Smooth Autofocus Motor and are compact and lightweight.
The lenses will be available in July 2009 with the 18-55mm going for about $200, the 55-200mm for about $230, and the 50mm f1.8 for about $150. No pricing has yet been announced for the 30mm macro.