Ahoy Comrades!
Taking advantage of a pretty good weather and school holidays, I was able to put together a new image - the first one with my new telescope. Happy days!
Some technical info:
Scope: CFF 105mm f/6 with a 0.75 Riccardi reducer (imaging at f/4.5)
Camera: QSI 690
Filters: 3nm Astrodon
Exposure: Ha - 195 min, OIII - 420 min, SII - 420 min
Colour palette: SHO
Processing: PixInsight 1.8
Signal in OIII and SII was quite weak; I was getting about 3 photons per pixel per minute in the brightest areas with OIII, with SII being somewhat weaker still.
There is some field curvature in the corners so my next image will be at native f/6 with just a flattener to further test the new telescope. I am starting to appreciate the 3.2" FT motorised focuser - solid as a rock and wonderful precision. As for the optics in the new scope - I have immediately noticed some welcomed improvements over my previous beautiful and trusty TS ED doublet - with CFF there was only very minimal focus shift between OIII and SII filters and virtually no halos around stars, but frequent refocus was needed at F/4.5. After trying f/4.5, I look forward to imaging at native f/6.
Link to Astrobin image:
http://www.astrobin.com/full/301936/D/?nc=user
Full res:
http://cdn.astrobin.com/images/thumb...20Lipinski.jpg
Version with Ha+OIII+SII=LUM:
http://www.astrobin.com/full/301936/E/?nc=user
Thank you for looking
