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Thread: Orion SkyGlow Broadband Light Pollution Filter

  1. #21
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    Your filter is fine, they do turn everything green.
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  2. #22
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    Quote Originally Posted by spectre180 View Post
    Your filter is fine, they do turn everything green.
    Hmm not sure I like that

    Rellikzephyr

  3. #23
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    Quote Originally Posted by RellikZephyr View Post
    Old thread I know, but I have a question on the orion skyglow filter

    I recently got one, to see if it helped with the bit of industry to the NE of me, strong orange glow. But I've noticed the filter turns everything green, overpoweringly green...question is....it's this normal? Are these filters normally a strong green or do I have a dodgy/wrong filter?

    Thanks

    Rellikzephyr
    I can't comment on the Orion Skyglow filter, but I use a Baader Skyglow/Moon filter to fight the neighborhood street lights, and it does not turn anything green. It certainly reduces the reddish tinge from light pollution I used to get prior to using it when imaging. In fact, I visited M31 tonight, about 30-40 degrees from the Moon and Jupiter, and this is the result...: < -- see, no green. All mfg's make their filters to different specs, and light spectrums, so that may have something to do with your situation. I couldn't handle green in my eyepiece or images, the filter would have to go..

    Cheers,

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  5. #24
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    Quote Originally Posted by Astronewb View Post
    I can't comment on the Orion Skyglow filter, but I use a Baader Skyglow/Moon filter to fight the neighborhood street lights, and it does not turn anything green. It certainly reduces the reddish tinge from light pollution I used to get prior to using it when imaging. In fact, I visited M31 tonight, about 30-40 degrees from the Moon and Jupiter, and this is the result...: < -- see, no green. All mfg's make their filters to different specs, and light spectrums, so that may have something to do with your situation. I couldn't handle green in my eyepiece or images, the filter would have to go..

    Cheers,

    Paul
    Yeah I really don't like it, slight green tinge I could maybe put up with, but this is like it's just green glass

    Rellikzephyr

  6. #25
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    I didn't like the LP filter until I put a 6.3 focal reducer on my scope, now I use it quite a bit. (I have the Celestron UHC/LPR filter that came bundled with my scope, but from what I understand, it's a broadband filter similar to the Orion.)

    The focal ratio makes a big difference on my 8"SCT: at F/10, the filter darkens *everything* too much to be very useful. At F/6.3 the views are a lot brighter, and the filter really helps with large low-contrast targets like M1 Crab Nebula.

    Without the filter, M1 is a small, very dim grey patch in my EP, about 1/5 the size of what I've seen from a green zone. With the filter, I can see about 3x more total area.

    FWIW, like Abb, I have a high concentration of HPS streetlights. The street bends around in a "U" in front of my house, so I've got 6 or 7 steetlights within a 50-yard radius from my front door. Fortunately (also like you, Abb), houses and trees shield the back side of the house from a lot of the direct glare.

    I'm not sure I would have bought the filter if it hadn't come bundled with my scope, but the views of M1 alone have been worth it. I just got the 6.3FR recently, so there are probably other targets where the filter will come in handy.

    Clear skies,
    David

    Best,
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  7. #26
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    Hello Abb,

    looks like a good deal. The broadband filter is not a sky glow filter in the sense of Baader, but a very broad band 'nebular filter', passing nearly all from the 450+ nm up and beyond the Cyan comet lines, and H-Alpha up to IR.
    (The spectral curve on the Orion page have been drawn by an artisan, not by a spectrograph, however.)

    You can certainly benefit from this filter on all clusters, comets, and on some galaxies perheaps, under heavy light pollution.

    You will not come around a good narrow band OIII for the nebulas, and a good narrow-band UHC to extract the star birth clouds in M33, and in other galaxies.

    Regarding the Orion narrow band filter - I can't get the curves.

    Best

    JG
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  8. #27
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    Had to go back and look at when I posted the original message - Dec 2, 2010! Somewhere long after that (this past fall?) I ended up with at UHC filter cause last summer they replaced all the NICE DIM street lamps with new MUCH BRIGHTER ones The street lights are in my East. The filter does help But now I try to wait till later in the evening when I want to see I can see from my back yard away from those horrid lamps!!!

    I jumped on the UHC filter cause in the Fall my viewing of the newly arrived Pleiades was hampered by those lamps It also helps with the Orion nebula too

    Now if I could get a clear night to try out my now 6 day old AR102.......

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  9. #28
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    I sent the filter back for a refund, might try a baader skyglow, or a nebula filter

    Rellikzephyr

  10. #29
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    well, i agree with Astronewb regarding the Baader Skyneon...it doesnt make that much difference ! but if you wait another month or so, i will provide a feedback about IDAS LP. still waiting for it since dec 23rd...let's hope it really worth the $ spent
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  11. #30
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    I've found that the best thing for getting rid of street light is a good BB gun and running shoes.
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