Astro-Physics Solar filter For Sale
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Astro-Physics Solar filter :
Astro-Physics AP Solar filter, external diameter is 180mm and thread side diameter is 171-172mm. I believe it is for 6" scope and typical AP quality with solid ring.
Filter front surface (facing sun) is good (1st 2 picture)Filter inner surface (facing scope) got some spots and previous owner covered/patched up with black paint to block direct sun light penetration. I tested through and didn't see any light escape from those patch up holes.
Due to defects, selling very cheap. User is advised to inspect thoroughly before use for own safety