M57 The Ring Nebula

3 x 300s Luminance + 2 x 100s each of RGB used for a quick test of the CFW-8 filter wheel modded to work via RS232. I used the AP 0.67 Reducer in the C9.25 rather than the Celestron 0.63 Reducer Corrector, it shows this scope has a reasonably well corrected field.

The luminance filter was a Baader Neodymium and wasn't parfocal with the RGB filters, I think this explains some elongated star shapes. No Flats/Darks or Bias frames used and only mild stretch and sharpening used in PS.

I'm surprised how his came out considering there is only 200s for each of the colours and no SC corrector used.