Astronomy > Filters > Other > STC > STC Filters Duo-NB Clip-Filter Nikon (APS-C)

STC

Product no.: 75425

Filters Duo-NB Clip-Filter Nikon (APS-C)

$ 590.00 incl. VAT plus shipping costs

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Product description

Narrow band filters increase contrast by only allowing specific light wavelengths corresponding to certain spectral lines through, e.g. hydrogen (H-a, 656nm), oxygen (OIII, 501nm), sulphur (SII, 672nm), etc. The filters can always be used for photography, even when the Moon is in the sky, or as filters for light pollution in the city. Exposure time plays no role here - long-exposure photography can also be undertaken.