M42 Narrowband

[BlueAstra]

This was last night's effort. I'd fitted the NB filters earlier in the week since the Moon was out, so I thought I'd keep them in for the time being. I'd also just re-collimated for the nth time and re-discovered that the Bahtinov mask isn't quite good enough at this F/Number (or is it just me?), and used star FWHMs instead. Very clear night (according to my newly installed cloud sensor!). This is 7x360s S2/Ha/O3, processed in DSS and PS. I followed one processing recipe, but I'm not sure about it so I might try a variation. I also did one 600s exposure at Ha, and it came out quite well, so may up the anti next time. Thanks for looking.

[Gina]

Very good Rare to see this in NB Hubble colours.

[sologuitarist61]

Great image

[Zendrix]

wow!! thats a great image, great colour! i wonder if the focus is a tweak out or just my impression! great in any case