Zhumell 1.25" Lunar and Planetary Color Filter Set - ZHUL036-1
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The Zhumell Lunar and Planetary Color Filter Set includes a #21 Orange, #12 Yellow, #80A Blue and ND96-0.6 filter, each of which is threaded to connect to most any 1.25" eyepiece or accessory barrel. A plastic case is included with your purchase that will keep your filters together and protect them from damage when not in use. These filters can be used individually or together to bring out detail in the images you see through your telescope. Why should you use filters? Here are just a few of the uses of the filters in this kit:
#12 Yellow - 74% Transmission
Yellow filters help greatly in viewing Mars by bringing out the polar ice-caps, enhancing blue clouds in the atmosphere, increasing contrast, and brightening desert regions. Yellow also enhances red and orange features on Jupiter and Saturn and darkens the blue festoons near Jupiter's equator.
#21 Orange - 46% Transmission
An orange filter helps increase contrast between light and dark areas, penetrates clouds, and assists in detecting dust storms on Mars. Orange also helps bring out the Great Red Spot and sharpen contrast on Jupiter.
#80A Blue - 30% Transmission
A blue filter provides detail in atmospheric clouds on Mars, increases contrast on the moon, brings out detail in belts and polar features on Saturn, enhances contrast of Jupiter's bright areas and cloud boundaries. A blue filter is also useful in helping to split the binary star Antares when at maximum separation.
ND96-0.6 - Neutral Density
Neutral density filters allow all wavelenghts to pass through equally. The effect of a neutral density filter is to reduce the overall brightness of an image. Neutral density filters are useful for splitting binary systems and reducing glare.