Baader CMOS H-Beta 2" x 2mm Narrowband Filter - Precision Grade - with 2" (M48) Thread5.5nm FWHM, recommended for optical systems from f/15 to f/1.8Plano-optically polished, hard-coated Reflex-Blocker™ with sealed...
IMPORTANT ANNOUNCEMENT !! When a filter is used between the corrector and the camera the working distance will increase to 1/3 of the thickness of the filter. if a 2mm filter is used it will increase approximately 650 microns, 0.65mm
Please sign in first.Sign in
This message would not show out anymore if you click on the GOT IT or closing button.