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The moon is up although not terribly bright any more. Still, it made me go for NB and for the first time use my Baader 8.5 nm Oiii filter that I bought years ago. I aimed at the Lobster Claw nebula in Cassiopeia. Grabbed 10 x 15 min of Oiii before the midnight meridean flip and 18 x 15 min Ha (Baader 3.5 nm filter) until the morning. I made a synthetic green by mixing Ha and Oiii 50:50. Then I tweeked the colours towards an RGB like palette. Registered and calibrated in PI and processed in PS.
So far I have only used my equipment for RGB and Ha so this is the first time I process my own pure NB data (I have had a few goes at processing public NB data). A reason for this is that I got a nice dark sky so RGB is always more tempting. SQM was 21.1 yesterday even with the moon up.
Equipment used: Esprit 150 + 0.79x 3" TS reducer + ASI1600MMpro. Guiding with ST80 and QHY5L-IIM.
Any comments most appreciated. I am for example a bit unsure how much of the Ha in the surrounding sky I should let through. My first versions were quite reddish all over and I finally decided to tweak the curves to put more emphasis on the brighter parts of the image to make the claws stand out.