"The core of M42 is notoriously hard to image because of the great range of brightness levels. Revealing the core detail along with the faint outer wisps in one image requires wide dynamic range, this is provided by the 16 bit FITS data generated by the DSI.

I have been doing film photography for over 15 years and had not tried CCD imaging until using a DSI. The DSI has been invaluable for learning about FITS data files and the processing of CCD image. I am particularly impressed with the way the DSI control software can automatically stack images on the fly reducing noise and increasing sensitivity. The M42 image presented here was done unguided."

Jason Ware
Dallas, Texas