For sale is the ultimate filter set. Astrdon LRGB and 5nm 65mm square filters for very big CCD chips like 16803
It is NEW! Never used and just out of box for taking photos.
A new set on the market is $3150 (just google it)
Take >60% off and $1250 shipped to CONUS.
Paypal preferred, MO is OK. If use PP business transaction option, please 3% fee
Thanks for looking.
Astrodon Tru-Balance Generation 2 E-Series - LRGB 65mm and 5nm H-a Square Filters offer enhanced contrast for HII regions in galaxies.
Spectral "gap" to minimize effect of light pollution.
Astrodon Tru-Balance Generation 2 E-Series - LRGB 65mm and 5nm H-a Square Filters provide the highest efficiency blue filter with less UV and correct "teal" OIII color for planetary nebula.
More parfocal - thickness 3+/-0.025 mm and parfocal with Astrodon's high-performance narrowband and near-IR filters.
Astrodon Tru-Balance Generation 2 E-Series - LRGB 65mm and 5nm H-a Square Filters are crafted with striae-free 1/4 wave fused silica substrates and 30 arcsec parallelism.
Ultra-hard and durable sputtered coatings for ultimate durability.