The IMAGING SOURCE DMK 31AU03.AS Monochrome USB astronomy camera without an IR cut filter unifies three important characteristics for astrophotography: high resolution, fast refresh rate and a low price. The camera ships with IC Capture.AS, a comprehensive software package with which you can capture lossless and uncompressed images sequences and write them to disk as AVI files, or as a series of singular bitmaps. Global built in shutter