The sky opened up long enough on 13 Dec to allow some decent imaging time. The beloved orion is back, and this time round I had a go at it with the narrowband filters. Regrettably, I decided not to cool the camera for faster setting up ( not sure how long the freaky sky will remain clear ), limiting my exposures to no longer than 5 minutes. As you will be able to observe from the pictures below, narrowband filters will greatly benefit from loner exposures. The pictures were presented in the manner from H-Alpha, follow on with OIII, then a blend of both Ha & OIII and finally a composition of Ha,OIII& colour exposures.
All the pictures were captured with my trusty Genesis SDF & Canon 350D.
10 X 300S @ ISO800 / Baader 7nm Halpha
9 X 240S @ ISO800/ Astronomik OIII
11 X 180S @ ISO 800 / Astronomik UHC
5 X 40S @ ISO800/ Astronomik UHC
5 X 20S @ ISO 200 / Astronomik UHC
