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Old 20-10-2021, 04:18 PM
ausastronomer (John Bambury)
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Join Date: Mar 2005
Location: Shoalhaven Heads, NSW
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Originally Posted by Culford View Post
I also possess a Lumicon (broad band) deep sky filter that I bought back in the day. This filter seems to have a subtle effect on some objects but to be honest I don't think broad band filters are worth purchasing.
Hi Mick,

Funnily enough Broadband LPR filters actually do a really good job as Planetary Contrast Enhancement filters. Most people don't even try them for this purpose, but they work really well. They reduce irradiation, which improves the contrast between colour change boundaries.

As Don detailed earlier, they don't do much good as LPR filters under light polluted skies, but try it out on the planets

John B
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