The Explore Scientific 2 inch grey filter ND-0.9 reduces brightness and increases contrast to allow accurate observation of bright objects. The lens filter is ideal for observing the moon and other bright objects such as double stars. The filter can also be used in conjunction with other colour filters on larger telescopes. Dimensions: 51 x 51 x 10 mm, weight: 15 g Box contents: 1x colour filter ND96 neutral filter/grey/moon filter (13%, density 0.9); dust container for storage
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