The user-friendly astrophotography revolution continues with the DSI III. It combines ease-of-use with a 1.4 Megapixel monochrome chip, greater sensitivity, higher resolution, wider field of view, and low thermal noise. Meade engineers have invented a remarkable new way to reduce noise without a cooling fan. This means you can stack exposures for hours at a time. The thermal monitoring sensors automatically match your dark frames to ambient temperature so it’s nearly impossible to take an un-calibrated picture. The software includes a zoom feature for easier focusing and the squared pixels of the new larger chip make processing simpler and images more beautiful than ever. The DSI III is the world’s best un-cooled camera with low thermal noise. And that’s as cool as it gets. Deep Sky Imager PRO III The Deep Sky Imager PRO III has a 1.4MP Monochrome Sony CCD sensor. Achieve fast one-shot color images with the Deep Sky Imager III. With greater sensitivity of the monochrome chip, go deeper with the Deep Sky Imager PRO III and achieve greater detail with the CCD Color filter set. High Sensitivity (1.4MP) CCD Sensor from Sony - The Meade Deep Sky Imager III utilizes Sony’s large 2/3-Inch ExView HAD CCD Image Sensor. This sensor provides dramatically lower noise and higher dynamic range featuring a 16-Bit A/D converter.