This is an awesome professional Color Filter Wheel made by FLI (CFW1 5 Position Wheel) Comes with AP8 and SBIG Adaptors and an SCT Adaptors. Its about 1 1/2 years old and has not been used all that much. It has good scientific grade (Custome Scientic 50mm RGB + Clear Set normally $895.00 alone) filters in it. You can see images produced by it in the EverStaR glalery. I am not a very good imager BTW.