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Moon and Solar filter

Posted: Mon Dec 27, 2004 8:34 am
by Kaki Flyer
Anybody selling moon filter and solar filter?
Anybody know how much does it cost from a shop?

Thanks.

Posted: Mon Dec 27, 2004 9:08 am
by AGMI
if you want you can try astro sci..hehe the money raker..but generally according to some pip's advice,invest in good eps..

Posted: Mon Dec 27, 2004 2:19 pm
by weixing
Hi,
Anybody selling moon filter and solar filter?
Anybody know how much does it cost from a shop?
I don't think you need a Moon Filter at all. Use the aperture mask (remove only the small cover) to reduce the light if you observe the full moon.

You can buy a sheet of solar filter (around A4 size) from Astro Scienitifc Centre and make a solar filter for your scope. Unless you want to spend around S$200++ to get a ready made glass solar filter.

Have a nice day.

Posted: Mon Dec 27, 2004 5:22 pm
by Kaki Flyer
That's a good one.
Thanks Encik Yeoh.

Posted: Mon Dec 27, 2004 8:10 pm
by carlogambino
Hi, just a question over here, when using a aperture mask(without moon filter), will resolution of the scope be affected?

Posted: Mon Dec 27, 2004 10:29 pm
by weixing
Hi,
Hi, just a question over here, when using a aperture mask(without moon filter), will resolution of the scope be affected?
Yes. I think the resolution will be affected. Anyway, the only time when you feel the full moon is bright enough to cause uncomfort is when the whole full moon is in the Field of View... which mean you should be using low to medium magnification. In this case, I think you won't be affected by the reduced resolution. At high magnification, I think the full moon will not be that bright to cause uncomfort.

Have a nice day.

Posted: Mon Dec 27, 2004 11:53 pm
by fizzy123
I think u can use a polarising filter, same effect can also use it on double star to dim down the extreme bright primary. :wink:

Posted: Tue Dec 28, 2004 10:52 am
by carlogambino
Hi, for extreme bright primary in d.stars(like sirius), I think an occultation bar might be more useful cos it doesnt dim the other star too.