SharpCap Forums

NGC 281 Pacman Nebula.
I have a Zwo ASI071MC Pro camera and with it, narrowband in Ha and OIII can be rather easily captured with dualband filters, in this case the Optolong L-eXtreme. Capturing SII is another story though: it's possible but since only the red channel has real useable data in it, you have to capture more/longer in comparison to a mono camera. This of course is not stopping me

First image is in SHO Hubble Palette. It's my second real go at this, so I'm pleased with the result

But I always "play" with the data I have and in this topic by Tim, there were some cool examples of that plus an URL to a site with all kind of combinations.
I took that a step further and came to a OHS version on which I applied the same methode of getting a Hubble Palette.
This gave the second image where the SII shows very clearly as Blue and OIII =orange/yellow and Ha = green/blue. I rather like the effect

SHO Hubble Palette



OHS "Menno" Palette



Bortle 6/7
Meade LX200 8" f/10 ACF OTA
Ioptron CEM25EC mount (no guiding)
Optolong L-eXtreme filter
Optolong SII 6,5nm filter
Zwo ASI071MC Pro camera
Optec Lepus Standard 0.62x reducer (0.73x effective)

Captured with SharpCap Pro @ -10 Celsius / White balance R50 B50
L-eXtreme: 34 x 300sec / Gain 0 / Offset 4
SII f/6,2 : 17 x 600sec / Gain 90/ Offset 4
20 x darks, 50 x flats and 50 x darkflats per stack

Menno

Hi Menno,

I'd say that worked pretty well. 3h is not a massively long time - I am guessing that the reducer probably helped a bit?

Tim

Hi Tim

Yes, the reducer helps indeed. And no, 3 hours is not a lot but with a mono camera it would have been (a lot) better in this case

Menno