[h0ughy (David)]

Originally Posted by multiweb

Great shot. The region around the keyhole is very well defined. Nice one.

Thanks Marc – it surprised me as the guiding was all over the shop with scintillating stars.

Originally Posted by jjjnettie

good on you for getting out there Dave.
Lovely work.

Thanks JJJ – you know how nuts I really must be LOL

Originally Posted by danielsun

Nice one Houghy. Other than the colour, that is still very nice with huge detail!
Just wondering, with being a cooled camera and such a hot night, what were your exposure lengths and how many?

Cheers Daniel.

The image is made up of 20 x 30 sec, 20 x 60seconds, 1 x 300sec, 6 x 605sec – would have been a lot longer but for the cloud that drifted over (very quickly), ISO 800

Originally Posted by DavidTrap

From memory, the original article from Covington was regarding a UNmodded DSLR. It suggested colour conversion with Red ~150% to compensate for lack of red response of the UnModdded sensor.

I think the ratios I have used were based on what gave me a reasonable colour, compared to other imagers results. You could do some experimenting and achieve a more scientific result.

Maxim saves the image as an unconverted FITS file. Flats & Darks are applied before colour conversion. Not sure how PixInsight works.

DT

I might have to do a lot of experimenting David – I am far from happy and I have no star colours – that may be due to the stars being overexposed to get the nebulosity? But I did think the shorter shots may help put that back into the image?