[ausastronomer (John Bambury)]

Originally Posted by Jen

im on a filter hunt too but its just as confusing as eyepieces LOL

I have heard the OIII filter is the go

Hi Jen,

Not for a 6" telescope under dark Swan Hill skies. Given your circumstances a narrowband (UHC) will provide a noticeable gain on a much greater number of objects than an OIII filter. An OIII filter will outdo the UHC on a few objects but on those targets the UHC will still produce a noticeable gain.

Cheers,
John B