Transmits 12.5% of light so suitable for astronomical telescopes with 4-10" aperture.
Premium optical glass with anti-reflection coatings and a neutral density (doesn't affect colour).
Screws into the standard 1.25" filter thread of eyepieces and accessories and can be stacked with other filters.
|Average Rating (4 Reviews): |
Monday, 16 September 2019 | Steven
For such a low priced filter, I was surprised by the results. Got to use it on my 120 mm achromatic refractor when the moon was high before daybreak. Stops you feeling like you are staring directly into a torch and keeps the colours looking natural. Screws easily and securely to the eyepiece thread, too, and doesn't feel cheap.
At 100x magnification I got some wonderful views of craters at the terminator and in some other spots. Considering the moon had been full a few nights before, this filter made viewing very comfortable.
Though it may not give a noticeable boost in contrast, it performs admirably for the price, and I can definitely recommend this to other beginning astronomers on a budget, if you are happy with essentially just reducing the glare so you gaze at the moon's natural majesty.
Monday, 10 June 2019 | Gary
Even with binos the moon, especially a full moon is too bight to look at for long, which is a shame because it's fascinating. Well, not anymore. This little filter cuts out the eye watering brightness but does nothing to diminish the view, in fact it seems to enhance the craters and their shadows.
Sunglasses for Stargazing
Wednesday, 10 April 2019 | Paul
No need to buy anything more expensive, this little filter does a great job at minimizing the glare from the moon (and other bright objects like Saturn and Jupiter). Seems to darken moon images the perfect amount, not too dark to lose any features but definately dark enough to make viewing much more friendly to your eyes.
Improves contrast when viewing the moon.
Tuesday, 5 June 2018 | John
Does what it says on the tin, this dramatically improves the detail that you can see on the moon's surface.