I buy these matched pair for filters approx 4 months ago from Telescope Service Germany, in hope I will use them with binoculars, but that never survived.
So, they are unused, and in like new condition, matched pair!
Ultra High Contrast Filter for observing and photography of planetary and other emission nebulae.
Made in Germany!!!
-Transmits Lines H-beta, [O III] and H-alpha
-Enhances contrast of planetary and oher emission nebulae
-Blocks undesired wavelength ranges
-Scratch- and moisture resistant anti reflex coating
-Excellent carrier material
-Can be screwed into 2" eyepieces or other accessories with equivalent thread
Price for each filter is 160 USD with included shipping worldwide.
Kind regards and all best
CS
Denis, binoviewers expert
