[Startrek (Martin)]

I wanted to prove all the media hype about the Antlia Golden OSC Filter having little or no halo around Stars compared to my L Exteme which does.
Tuesday night was clear in Sydney so picked the bright nebula M8 Lagoon which has quite a few medium to larger sized stars as a test

6” f6 Bintel GSO Newt
EQ6-R pro mount
ZWO2600MC cooled to -10C Gain 100
Antlia Golden Dual band OSC filter ( Ha 5mn / Oiii 5mn )
TS Optics GPU coma corrector
45 x 2 minute dithered guided subs
40 x Flats
60 x Bias
PHD2 Multistar guiding ( atmospheric conditions were average, guiding started out at 0.60 and ended up 0.80 )
EQMOD, Stellarium, APT
Stacked in DSS
Processed in Startools V1.7 Compose OSC NB Bi Colour

Processed some different versions to check for any Halo around the stars
Synthetic Luminance
SHO bi colour versions
Interpolate bi colour versions

The results from the Antlia filter were pretty damn good ( almost no Halo ) compared to my L Extreme which had a pronounced Halo
Obviously I’m imaging with a Newt so results might be different say for a refractor ???
Antlia do make the same dual band filter for faster optics f2.2 to f3.6

Comments most welcome
Thanks