Compatible with any PENTAX lens ever produced (screw mount adapter required) and featuring Shake Reduction, the K100D is the kind of camera that makes history. Picture a large 2.5 inch LCD monitor with 210,000 pixel resolution and a friendly Mode Dial offering Auto Picture and Picture modes as well as new Scene modes for even simpler photography. The 6.1 megapixel APS-C size CCD and sophisticated 16-segment multi-pattern metering delivers outstanding image reproduction, while the bright, high-precision PENTAX mirror viewfinder features with 0.85X magnification. Large 2.5-inch LCD monitor with 210,000 pixel resolution, wide viewing angle Sophisticated 16-segment multi-pattern metering determines the optimal exposure settings 6.1 Megapixel 3008 x 2008 pixels JPEG External memory - SD Card - J&R Recommends a 512MB SD Card or greater for more practical usage Shutter Type - Electronically controlled vertical-run focal plane shutter Shutter Speed - 1/4000 - 30 seconds and Bulb Picture Modes - Auto Picture, Scene, Standard, Portrait, Night-scene Portrait, Landscape, Macro, Action, Flash Off, Program AE, Shutter Priority AE, Aperture Priority AE, Metered Manual, Bulb Scene Modes - Night Scene, Surf & Snow, Text, Sunset, Kids, Pet, Candlelight, Museum Power Source - Four AA (Lithium, Alkaline, and rechargeable NiMH) batteries, or Two CR-V3 lithium batteries Battery Life - Approximately 730 recordable images or 700 playback minutes with CR-V3 batteries System Requirements - Mac OS 10.2 or later, Windows 2000, XP Home edition, Professional, standard equipped USB port Dimensions - Width 5.1 x Height 3.6 x Depth 2.8 Inches (129.5 x 92.5 x 70mm) Weight - 22.4 ounces (635 grams)