MrStarGuy QHA7404Y 2" H-Alpha FWHM 7nm Filter (Black)

Best high contrast images with your CCD camera. The Star Guy H Alpha 1.25 " narrow band filter is a deep red long pass filter that enhances the contrast of nebulae emissions and reduces the effects of light pollution by only passing the hydrogen alpha light. The H Alpha filter is designed to transmit a narrow light bandwidth, which makes it ideal for observing solar prominences and other features of the sun. The filter eliminates halo effects with double sided polishing technique and coatings. Combine with other Star Guy filters for varying effects.