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  1. #1
    RhetoricCamel's Avatar
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    Default Moon Filter and Polarizing filter?



    When viewing the moon tonight should I use both the CrystalView Moon Filter and my Polarizing filter? I know when it's just a half a moon the moon filter alone doesn't dim the brightness much, not sure if combining the two will be any better?
    Or could/should I combine the moon filter with any of my other filters?
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  2. #2
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    Default

    No -- the polarizing filter alone can almost completely "black out" the moon. Twist it until it dims to your liking.
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  3. #3
    OleCuss's Avatar
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    Default

    Assuming your intent is to look at the moon itself, I'd try the polarizing filter alone. Not sure that moon and sky glow filter is really of much value.

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  4. #4
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    Default

    Joe - Thanks, I haven't attempted using the polarizing filter yet so I wasn't sure. Was thinking it was the same as a pair of polarizing sunglasses, turn 90°and everything kind of blacks out, turn another 90° way and everythings visible

    OleCuss - Yes I'm going to use this to look at the moon. I'm beginning to realize this filter set that came with my EP's is pretty much useless, even the moon filter. Will have to invest in a better one shortly.
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  5. #5
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    Default

    Quote Originally Posted by RhetoricCamel View Post
    .
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    .
    I'm beginning to realize this filter set that came with my EP's is pretty much useless, even the moon filter. Will have to invest in a better one shortly.
    You may be getting the wrong message.

    Think long and hard before you buy any more filters at all. Precious few are worthwhile - and your variable polarizing filter is one of those which are worth owning.

    If you look around the site you'll find more dissatisfaction with filters than happiness. You can also find the very few that are probably worthwhile.

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  6. #6
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    Default

    When I said I'll have to invest in another one, I just meant another moon filter, not a whole filter set. I've been through the worthless accessories thread, filters are useless except moon filters basically.
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    Default

    Quote Originally Posted by RhetoricCamel View Post
    When I said I'll have to invest in another one, I just meant another moon filter, not a whole filter set. I've been through the worthless accessories thread, filters are useless except moon filters basically.
    And except Solar Filters

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    Default

    Quote Originally Posted by RhetoricCamel View Post
    When I said I'll have to invest in another one, I just meant another moon filter, not a whole filter set. I've been through the worthless accessories thread, filters are useless except moon filters basically.
    Hmmm. . .

    One of us may be misunderstanding the nature of a good Moon Filter. I consider it to be simply something which decreases the amount of light you are getting from the moon in order to make the view merely bearably bright - may improve contrast as well.

    My impression (and it could easily be erroneous) is that the Zhumell "Moon & Sky-Glow Filter" is effectively a sky-glow filter intended to filter out sky or moon glow whilst you attempt to see DSO's. Not at all sure you'll see significant benefit from that at any time.

    IMHO, if you have a variable polarizing filter you have all the moon filter that you need.

    BTW, if you are using a diagonal you may be able to attach one component of your variable polarizing filter to the nosepiece of the diagonal and attach the other to your eyepiece. Then you can vary the amount of light by simply rotating your eyepiece!!!

    Edit: Odd thing I noticed while I was researching your variable polarizing filter. It is listed as 35-40%. The one I have is something like 1-40%. Not sure that if it really is 35-40% that messing with varying the transmission rate is going to make much difference.
    Last edited by OleCuss; 03-20-2011 at 03:03 PM.

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