This premium solar filter is safe to photograph or view the sun when mounted on your telescope. It has a rating of Neutral Density 5, which blocks 99.999% of all light, including harmful IR and UV rays. The substrate is made of a highly reflective, Helios Solar Glass , the aperture is off center and mounted into an aluminum outer cell. The filter slips over the sky end of your optical tube and is secured and centered with 3 nylon thumb screws. Your solar filter will come packaged in a foam lined storage box and include instructions for proper use and care. When used properly, a natural yellow-orange image of the sun is viewed through your filter. Dependent on the size and strength of your optical device, you will be able to see sunspots, solar granulation (suns photosphere), eclipses, and planet transits. We offer a limited lifetime warranty for manufacture defects. If you are unsure of the right size filter for your optical device, contact us and we will be happy to help. WARNING: ALWAYS MAKE SURE THE FILTER IS SECURELY ATTACHED TO THE SKY END OF YOUR TELESCOPE/BINOCULARS/CAMERA, ETC. OUR FILTER SHOULD BE FIRST IN LINE ALWAYS! NEVER OBSERVE THE SUN WITHOUT A PROPERLY ATTACHED FILTER OR WITHOUT PROPER EYE PROTECTION.
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