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Off she went with a trumpety trump....


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Hey steady on KK , wondered where u had been lately , getting ready to surprise us with a cracker eh, thats a great image KK, and the long exposure really has got a huge amount of data out . just one small point , is that a hint of coma ??

otherwise a winner mate

well done

Rog

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Thanks guys, it was nice to get out at it again. Been working my butt off with loads of places being shut down for summer repairs. Corby and Redcar in one day is great fun (NOT!).

Marius, there's no difference between an Achro and an APO (or superAPO) through a narrow band filter, so you get to do imaging and keep both kidneys. The f/5 achros are fast and give wide field images, which is nice, and you need fast with Ha as that really puts the brakes on the exposures. You do get some abberations but mostly Photoshop can fix them.

Whats all this coma then? Would that be wonky stars at the edges? I must say I hadn't noticed them and its a lot better than the ED80 plus 2" focal reducer that I did the big Pelican with.

Kaptain Klevtsov

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