Got to do it every year – this is the 2017 version. Also trying out my new Revelation x0.75 reducer for the RC8. Seems to work very well for a very reasonable price £69. Spacing should be 80mm +/- 5mm. I managed to get 75mm with my filter wheel and 460EX.
Orion Nebula, Diffuse Emission Nebula, Orion
Mag 4.0 Size 85’x60′
2017-01-01
200mm f8 RC at f6 (new Revelation x0.75 reducer)
Piggyback guiding with new 70mm f/7 achromatic refractor
L 15×60s 2×2, RGB 15×30s 4×4 BPM
Atik 460EX (-25C), LRGB filters, IDAS P2 LPR filter
Captured in APT, Processed in Nebulosity3, PS CC, LightRoom