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Equipment Discussions >> Eyepieces

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B. Cook
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Reged: 10/18/10

Loc: No. California
New Refractor Coming What Filters Recommended ??? new
      #5846736 - 05/07/13 10:07 PM

Have a new Sky Watcher Pro 120ED Apo on its way. What filters should I consider getting especially for planet viewing? I have the OIII and a neutral density. Also considering a UHC filter. Feedback appreciated. Thanks Bill

Edited by B. Cook (05/07/13 10:33 PM)


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David Knisely
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Reged: 04/19/04

Loc: southeastern Nebraska
Re: New Refractor Coming What Filters Recommended ??? new [Re: B. Cook]
      #5846830 - 05/07/13 10:48 PM

For a good narrow-band "UHC-like" filter, I like the DGM Optics NPB filter:

CN REPORTS: DGM Optics NPB Filter

For a good Oxygen III filter, I recommend the Lumicon OIII filter, although the Thousand Oaks OIII and DGM OIII filters aren't bad either. Clear skies to you.


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youngamateur42
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Reged: 11/21/12

Loc: La Verne, CA
Re: New Refractor Coming What Filters Recommended ??? new [Re: David Knisely]
      #5848627 - 05/08/13 08:22 PM

one of the best filters for planetary use on pretty much every planet is a #80A blue filter, sometimes called the Jupiter filter (from Orion brands). This blue filter is amazing on Jupiter, I've easily picked out the Red Spot on Jupiter in a 70mm refractor, so that should provide some pretty astounding views. But this filter's only for planetary and lunar, they're of no use for deep sky observing. Glad to help!

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SeattleScott
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Reged: 10/14/11

Re: New Refractor Coming What Filters Recommended ??? new [Re: youngamateur42]
      #5849142 - 05/09/13 12:23 AM

Yellow helps with seeing polar caps on Mars. Not sure how much benefit there is in getting UHC if you already have OIII.

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Sarkikos
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Reged: 12/18/07

Loc: Suburban Maryland, USA
Re: New Refractor Coming What Filters Recommended ??? new [Re: B. Cook]
      #5849332 - 05/09/13 07:13 AM

IME & IMO, the best general contrast filter for planets is the Baader Moon & Sky Glow. Magenta is very good for Mars.

Mike


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Jon Isaacs
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Reged: 06/16/04

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Re: New Refractor Coming What Filters Recommended ??? [Re: SeattleScott]
      #5849389 - 05/09/13 07:51 AM

Quote:

Yellow helps with seeing polar caps on Mars. Not sure how much benefit there is in getting UHC if you already have OIII.




I use them both. An UHC filter has two advantages over the O-III. First, it passes more bands than just the O-III, I believe they also pass the H-beta filter so it can enhance objects that do not respond to the O-III filter.

Second, O-III filters take a toll on the stars visible something like M-8 shows a a lot of nebulosity but at the cost of stars in the cluster. An UHC filter shows more stars so it can make a nice balance.

Jon


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