Celestron Moon Filter Set - 1.25" - 94315 OPEN BOX

Celestron Moon Filter Set - 1.25"

• Celestron's Convienient Moon Filters, All in One Set
• Greatly Improve your viewing of the Moon
• Four great Moon filters in one kit—everything you’ll ever need for optimal views of the lunar surface
• Three neutral density (ND) filters with different levels of light transmission (13%, 25%, and 50%) allow you to choose the perfect filter for your viewing conditions
• Moon & Sky Glow filter provides high contrast views of the lunar surface
• Moon & Sky Glow filter enhances observation of deep sky objects from light polluted skies
• Aluminum filter cells provide a rigid, durable housing for the filter glass and are threaded on top and bottom to permit stacking
• Kit includes a plastic carrying case with Moon map and legend for identifying the most popular lunar features

The Earth's Moon is the most popular object to observe with a telescope. It’s an obvious target that’s easy to locate and full of exciting geographical features to explore. Moon filters enhance lunar viewing by cutting down on the Moon’s bright glare, improving contrast and making faint details easier to observe. Amateur astronomers refer to Moon filters as “sunglasses for the Moon” because they provide a more comfortable view. Astronomers quickly learn that viewing the Moon with a telescope (but without any Moon filter) is just too bright for most person's eyes, and produces eye fatigue very quickly. Use these Moon filters from this Celestron Moon Filter Set to make viewing of the Moon much more comfortable and reduce eye fatigue.

This Moon Filter Set contains all the filters you will ever need to observe the Moon during its various phases. The set allows you to choose the best filter to use with different eyepiece and telescope combinations. Use the darkest filter with larger aperture telescopes and lower magnification eyepieces. Use the lighter filters with smaller telescopes and higher magnification eyepieces. These are a great addition to your eyepiece kits and you will appreciate their usefulness when you view the Moon.

Three neutral density (ND) filters: ND96-0.9 13% T, ND96-0.6 25% T, and ND96-0.3 50% Transmission: These filters dim the entire visual spectrum from 400 nm - 700 nm equally. That is why they are called Neutral Density type. The ND96-0.9 filter transmits 13% of the incoming light, the ND96-0.6 transmits 25% and the ND96-0.3 transmits 50%. They do not impart any color to the Moon, but reduce lunar brightness. With several ND filters to choose from, you can find just the right level of light transmission for the Moon depending on its phase, the aperture of your telescope, and the magnification of your eyepiece. ND filters can also be used reduce the glare from Venus to better see its crescent phases, and to help dim bright daytime views when using a telescope for terrestrial observation, if the images are too bright.

A Moon & Sky Glow filter: This filter selectively reduces light transmission at different wavelengths and greatly improves contrast for observing subtle lunar features. This filter imparts a very light purple color to the Moon. This great filter can also be used for other observations besides the Moon!

For those in light-polluted sky locations, the Moon & Sky Glow filter provides some contrast enhancement when viewing deep sky objects due to the filter blocking some wavelengths associated with common forms of light pollution, e.g. low-pressure sodium (LPS) street lights. Use this handy filter to observe deep sky objects if you have some light-pollution problems.

A durable plastic carrying case: The Celestron 1.25" Moon Filter Set comes with a foam-lined plastic case to store all four filters when they are not in use and protect them during transit. Moon map and legend: Helps you to familiarize yourself with the Moon, our neighboring world with the help of this convenient handheld Moon map. The Moon map comes complete with a legend highlighting 17 key features to explore including Sea of Tranquility, Tycho, Plato, Copernicus and many more features of the lunar surface.

Each filter is housed in an aluminum cell, provides a rigid, durable frame for the filter glass. The filters thread into Celestron 1.25” eyepieces and most other 1.25” eyepieces with a standard filter thread. These filters have threads both on the top and the bottom to stack with other filters for even more light filtration possibilities.

What's In The Box:

• Three ND Filters (for Moon), Density 0.3, Density 0.6, Density 0.9
• One Moon & Sky Glow Filter
• Plastic Carrying Box for Filters
• Moon map and legend for identification of lunar features

Specifications: