Cloud Break Optics

Neutral Density Filter, 1.25" (94105)

Neutral Density Filter, 1.25" (94105) - Main image
$14.76 $19.95 In stock

Category: Filters

Description

The Neutral Density Moon Filter attaches to a 1.25" eyepiece to lower the amount of light entering the eyepiece by 87%. The Moon is one of the most viewed objects in the sky, but you shouldn't be deprived of its features due to brightness. This filter only allows 13% of the telescope's light to reach the eyepiece, making it a lot more comfortable to view. Unlike color filters, the Neutral Density Moon filter affects all colors of the visible spectrum evenly, darkening the image without shifting the color. Some Moon filters are #58 Green filters, and while they work well for cutting glare, they also add an unnatural green cast to the Moon's surface. The Neutral Density Moon filter gives a true color image.

This filter is also great for helping to cut glare and increase contrast when viewing bright planets like Venus or Jupiter, or even to dim bright stars when splitting close double stars. The filter is glass with an aluminum cell that attaches to 1.25" eyepieces and is threaded on both sides so it can be stacked with color filters.

Specifications

Size diameter 31.75mm (1.25")
Cell Housing Aluminum cell housing
Stackable Filter Yes
Light Transmission 13%
Dimensions Filter only 31mm x 11.5mm (1.22" x .45")
Dimensions Case only 54.5mm x 43mm x 18mm (2.14" x 1.7" x .7")
Dimensions Packaging 60mm x 50mm x 23mm (2.36" x 2" x .9")
Weight Filter only .21 oz (6 g)
Weight Case only .5 oz (14 g)
Total Package Weight .88 oz (25 g)
California Residents View Proposition 65 Warning
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Customer Reviews (4.8 / 5 · 5 reviews)

Christopher ★★★★★

This 87% reduction made viewing the full moon comfortable for the first time; it screws smoothly into my 1.25" eyepiece without any wobble.

Natalie ★★★★★

I was struggling with a painfully bright crescent moon until I threaded this filter on—the image instantly calmed down and surface details like crater rims popped out. The threads are smooth and it screws into my eyepiece without any wobble.

Emily G. ★★★★★

My first night with this 87% moon filter was a game-changer—the craters popped with detail instead of washing out in a bright haze. It threaded smoothly onto my 1.25" eyepiece and stayed secure through an hour of observing.