hi brent,
going through similar issues myself. didn't realise how restricting the light pollution was for my pics at my location. light pollution filter (or NB) will help, winter or a cooled solution is the only way to push it further. summer hasn't been kind, looking at cooling solutions... but by the time I get around to doing/ getting something it will be June, so I guess i'm planning ahead for next summer!
cheers
rusty
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