Celestron Neutral Density Moon Filter - Compatible with 1.25" Eyepieces and Suitable for Lunar, Venus & Double Star Observation, Black

This review is for the Celestron Moon Filter Kit. The kit includes 4 filters, ND96-0.9, ND96-0.6, ND96-0.3 and a Moon and Skyglow filter that is actually beneficial while looking at planets as well as the moon while viewing in an urban environment where light pollution is an issue. The filters are well made and the threads are cut well for easy installation on any 1.25 lens. I found the focusing to be sharp and clear. The case is accessible by turning the clear lid clockwise or counter clockwise to open or close the container. The moon chart is more novel than packed with information. Nonetheless, it is a helpful guide for those just starting out and servers a duel purpose by protecting the lenses while not in use. I believe this lens kit is an excellent value for the money, and would recommend it for beginners to intermediate users. Those who are more on the serious side of astrophotography should look for something that would be of a higher quality optics. However I’ve attached a picture taken with my iPhone using the ND96-0.6 lens and was very impressed with the results. Overall it’s hard to beat this kit for the quality and the price.

I like how how you can quickly adjust the filter strength. It does unscrew in to 2 halves, so you can 1/2 on a barlow and the half on the eye piece. The quality is good, smooth adjustment it doesn't feel gritty. The threads are well machined and we'll built.

This set comes with #12, #21 and #80A color filters for planetary observation along with a 50% transmission neutral density filter. Despite what some others have said, it is rather easy to tell them apart under monochromatic red light. The #80A blue's gel looks quite dark, even darker than the neutral-density filter, and they all have white-on-black lettering around the outer rim to identify them. The sky wasn't cooperating very well tonight as clouds kept scooting over my observations of Saturn and Mars, but the filters all do what they say they're doing according to the sheet Celestron helpfully includes in the box, which really helps a noob astronomer like me figure out what filter to use to look at which planet.All four filters are clear and seem to be free of defects, and don't affect the view seen other than how they are supposed to (that is, filtering out certain bands of light). The 50% transmission neutral-density seems like it would be a little too much light let through for lunar observation, though with my small 60mm aperture I don't see this as being a big issue. I haven't had much of a problem with glare while looking at the moon in the past. I will probably be submitting an update in a about a week or so when I can do some lunar observation, though. All in all, I'm satisfied with this purchase and I think it's a good value.

It does the job! Cuts the glare, but with a big full moon it will still be a bit bright. Just keep that in mind and alternate eyes it you want to view fainter objects the same night. Install is a cinch (just screw on). Good product!

Bought this for my son he loves it. Highly recommend this, as it is a very good brand and it is a very good product from that brand.

Works nicely, eases viewing of the moon.Only drawback is that it is placed inside the telescope so changing the polarization requires disassembly of the eyepiece. In addition - if the telescope remains assembled - you may forget the filter inside --> might take time to understand why deep sky objects are not visible - but this was my fault, not the filter...

Bought this filter to block out all the unnecessary light to the eye and so you can see craters more defined and it works so well! Very easy to install and quick results.

These are great filters for viewing the planets and the moon. The only thing is that some of the filters are loose so they rattle this is pretty simple to fix. First thing you have to do to tighten the filter is set it down so the silver ring is up. If you look at the top of the filter you will see there is a plastic ring inside with two notches on it. You then just have to put a screwdriver or your fingernail into one of those notches and rotate the ring so it screws down into the filter, and this should stop the rattling.