What is the major feature of istDS compared with istD?
* The *ist DS features a high-rigidity stainless-steel chassis and a super-compact, ultra-lightweight body. PENTAX downsized digital SLR technology by including multi-layered electronic circuit boards and high-density packaging. The result is a camera that measures a mere 4.9 x 3.6 x 2.6 inches and weighs less than 18 ounces without batteries and SD memory card. * Enjoy an easy-to-use and accessible operation system. From the multi-function four-way controller to the responsive electronic select dial and the large, easy-to-use mode dial, all switches and dials are efficiently and functionally laid out around the camera’s compact body to assure smooth, fingertip control. * Enjoy the versatility of an interchangeable Natural-Bright-Matte focusing screen. AF Split-Image matte and AF Divided Matte screens available as optional accessories. * Freeze the decisive moment of the subject’s action or motion with a top shutter speed of 1/4000 second and a top synchronization speed of 1/180 second
