Baader IR-Pass 670nm Filter - 2" Round Mounted - FIRP-2 UHC Filters Secondary Mirror Obstruction: 2

Secondary Mirror Obstruction: 2

Keep each one in its appointed place when not in use and you'll keep them looking and performing like new

you''ll get more eyepiece time and that means more opportunity to spot subtle details

Anti reflection angle that prevents reflection back to the objective

Exit Pupil 4mm

Baader IR-Pass 670nm Filter - 2" Round Mounted - FIRP-2 UHC Filters Secondary Mirror Obstruction: 2About the Baader IR Pass 670nm Filter 2" Round Mounted Baader Planetarium delivers the latest tool in the planetary imager''s bag of tricks. The Baader IR Pass Filter blocks wavelengths below 670 nm. At these longer wavelengths, planetary images are less disturbed by wavefront distortions in the atmosphere (seeing). By combining a luminance image taken with the IR Pass filter, along with RGB frames, overall image sharpness is significantly enhanced.