Oceanside Photo and Telescope
918 Mission Ave., Oceanside, CA 92054

Oceanside Photo and Telescope announces a new filter for astrophotographers. The OPT Triad Tri-band narrowband filter is designed to pass wavelengths centered at 493 and 656.3 nanometers, where emission nebulae produce light, while blocking other wavelengths in the visible spectrum. This permits users to record full-color images from light-polluted skies using DSLR and astronomical CCD or CMOS cameras. The filter is available in 1¼-inch and 2-inch formatted cells for $375 and $775 USD, respectively.

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