IDAS H-alpha 6.8nm. OIII 6.0nm and SII 6.3nm Sets. Available at various sizes and classifications – STD or UHS.
IDAS is a trademark of ICAS Enterprise, Japan

IDAS H-alpha 6.8nm. OIII 6.0nm and SII 6.3nm Sets. Available at various sizes and classifications – STD or UHS.
IDAS is a trademark of ICAS Enterprise, Japan