Apertura 1.25" Lunar & Planetary Filter Set #1

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80A Blue Filter
The 80A blue filter features a 30% transmission, and can elevate your view of a number of stellar objects. It improves your view of Jupiter's Great Red Spot and adds contrast between this giant's reddish belts and adjacent bright zones. This added flair can be seen when viewing Saturn as well, sharpening the boundaries between the belts and zones on the sixth planet from the Sun. It aids in your exploration of Mars' polar ice caps and surface, and can improve Mercury's surface markings at twilight when the elusive planet is low on the horizon. This filter can additionally enrich your observation of comets, bringing out definition in the gaseous tail!

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58 Green Filter
This filter sports a 24% transmission, and provides a boost to your views of Venus, the Moon, Mars, Jupiter, and Saturn! With this filter you will add contrast to Jupiter's Great Red Spot, and bring out some of the white features of Saturn's atmosphere. Views of bright comets and the lunar surface are improved, and the faint cloud patterns of Venus become more distinct. This filter can really shine when put between you and the fourth planet from the Sun, enhancing Mars observations across the board; including the polar ice caps, low clouds, and dust storms.

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25 Red Filter
This 25 red filter has a strong filter profile, with just 14% transmission of the light being focused to your eyepiece. This powerful filtering and stark contrast against the blue sky helps with daytime observations of Mercury and Venus. This contrast also assists in your observations of Jupiter and Saturn's blue features. Views of Mars are also enhanced with this filter, helping add definition to the polar ice caps, surface, and yellow dust clouds.

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Neutral Density ND96 Filter
With a neutral density filter design, this visual add-on reduces incoming light to just 13% of its original brightness without adding the tint present in some similar filters. This will enhance your lunar observations, revealing fainter details in the seas, craters, and peaks, especially in brighter phases of the Moon. Shading your view can also benefit your observations of some other celestial objects; by taming the twinkle of double stars to assist with splitting them, and reducing Venus' radiance to help bring some of the faint detail visible in its atmosphere some a bit more to the forefront.

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Quality Design
The filters in the Apertura 1.25" Lunar & Planetary Filter Set #1 have been fitted into a 1.25" filter cells that make them compatible with a wide variety of visual gear. Simply thread your filter of choice into the front of your 1.25" threaded eyepiece, diagonal, Barlow, or other visual filter holding accessory, to enhance your observations of the planets and Moon! The filters themselves are made with solid parallel glass that has been anti-reflective coated to cut glare and ghosting, as well as provide a clear visual experience. The black anodized aluminum cell is additionally threaded on the opposing side of the filter to allow you to make your own unique filtering profile by stacking filters*. To keep these filters safe when not in use, a protective plastic case with soft foam cutouts has been included.

*Please Note: While you can create an unique and interesting filter profile with this method, each filter addition will further reduce the light passing through your eyepiece.

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Comes with the Apertura Absolute Warranty
The Apertura Absolute Warranty provides two years of coverage against product defects. After the initial two-year warranty expires, this product qualifies for Apertura's Three-Year Accident Replacement Program. In addition, the Apertura Absolute Warranty is transferable! Download a copy of the Apertura Absolute Warranty for more information on this program, how to make a claim, and why it is important to keep your original receipt and the product's original boxes and packaging!