Optolong H-Alpha Schmalband (7nm) CCD Filter-36mm Montiert
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상품특징
Make sure this fits by entering your model number.H-alpha 7nm filter is a narrow-band filter used for CCD photography.The extremely narrow bandwidth only allows the emission line of 656nThrough this filter, F interference of artificial sodium (NA) lamp and mercury (HG) lamp can be effectively cut offThe filter is suitable for use in areas with heavy light pollution in cities. The filter is suitable for dim emission nebulae.The transmittance of emission spectral line at 656NM reaches more than 85% 2. Laser engraving LOGO ensures the delicacy and professionalism of products
상품설명
H-alpha 7nm filter is a narrow-band filter used for CCD photography. The extremely narrow bandwidth only allows the emission line of 656n. Through this filter, F interference of artificial sodium (NA) lamp and mercury (HG) lamp can be effectively cut offmaking the emission line highly transparent and improving the contrast of nebula. The filter is suitable for use in areas with heavy light pollution in cities. The filter is suitable for dim emission nebulae. Features 1. The transmittance of emission spectral line at 656NM reaches more than 85%; 2. Laser engraving LOGO ensures the delicacy and professionalism of products
Make sure this fits by entering your model number.H-alpha 7nm filter is a narrow-band filter used for CCD photography.The extremely narrow bandwidth only allows the emission line of 656nThrough this filter, F interference of artificial sodium (NA) lamp and mercury (HG) lamp can be effectively cut offThe filter is suitable for use in areas with heavy light pollution in cities. The filter is suitable for dim emission nebulae.The transmittance of emission spectral line at 656NM reaches more than 85% 2. Laser engraving LOGO ensures the delicacy and professionalism of products
상품설명
H-alpha 7nm filter is a narrow-band filter used for CCD photography. The extremely narrow bandwidth only allows the emission line of 656n. Through this filter, F interference of artificial sodium (NA) lamp and mercury (HG) lamp can be effectively cut offmaking the emission line highly transparent and improving the contrast of nebula. The filter is suitable for use in areas with heavy light pollution in cities. The filter is suitable for dim emission nebulae. Features 1. The transmittance of emission spectral line at 656NM reaches more than 85%; 2. Laser engraving LOGO ensures the delicacy and professionalism of products
2019-10-31 14:04:43
