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Dave,
Nice work on an extremely bright target
Like Mike said , a 14” at f2 is an insanely fast light bucket , a gigantic photon muncher !!
The colour could do with a bit more saturation or balance ( Ony my observation) but a tremendous image all the same. The core region image is a cracker !!
I don’t think I’ve seen one of your images using the Antlia Triband RGB or maybe I haven’t picked it up.
You’ve got me thinking about this filter.
I really struggle with broadband galaxy imaging in Sydney due to my scopes 8” aperture and 1000mm focal length but more importantly, the LP under B8 Skies. Even using my Luminance filter at 30 sec subs washes out the image with noise ( RGB at least give some defence against noise ) We don’t get enough clear moonless nights in Sydney to gather 20 or 30 or 40 hours of data ( which is what’s required to maximise SNR ) on a particular target whilst it’s in my semi restricted field of view.
Testar mention in their notes on this filter that it could replace a Luminance filter in a Mono camera. So standard LRGB to Triband RGB , R, G , B
If so this would be a deal breaker for those with Mono cameras imaging under B7 to B9 City Suburban skies and want to get the best low noise data out of Broadband targets.
My only concern with this filter is colour , although the specs say it balances RGB spectrum response quite well , even though it primarily a narrowband filter.
Your thoughts. ?
Cheers
Martin
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