Astronomik Filters CCD Canon EOS XL H-Alpha clip-filter (43703)
296.97 $
Tax included
The Astronomik H-alpha 12nm filter is a narrowband filter specifically designed for CCD astrophotography. It allows H-alpha light from emission nebulae to pass through while blocking nearly all other wavelengths where CCD cameras are sensitive. With a full width at half-maximum (FWHM) of 12nm, this filter is optimized for use with common CCD cameras and fast optics, offering a transmission rate of up to 99%. The "Halo-Free" design, introduced in 2008, ensures superior image quality by eliminating halos around bright stars.