Filter usage recommendation by David Knisely

This is where you can read up the answers to some FAQs on astronomy and star-gazing in Singapore. Members' contributions are welcomed.
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ariefm71
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Filter usage recommendation by David Knisely

Post by ariefm71 »

Very useful info from CN (I think Elton always had a copy of this article everytime he went to Mersing).
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rlow
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Post by rlow »

This info was actually posted there on CN for a long time. Useful reference, but not necessary to bring for use, just bring a narrowband and O-III filter. :)
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mrngbss
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Post by mrngbss »

rlow wrote:This info was actually posted there on CN for a long time. Useful reference, but not necessary to bring for use, just bring a narrowband and O-III filter. :)
What do you mean by narrowband filter? Which one are you referring to?

What if webcams are used? What filters will be helpful?
Wee Nghee the Pooh
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rlow
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Post by rlow »

Examples of narrowband filters are the Orion Ultrablock & Lumicon UHC filters. :)
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