Baader IR-Pass 670nm Filter - 2" Round Mounted - FIRP-2 Meade Closeout Eye Relief (mm): 20 mm

Eye Relief (mm): 20 mm (0

the Etalon filter systems have to be adjusted to the prevailing air pressure at the observation location

TeleVue Product Number: PTR-2200

This shifting is indeed minimal

non-marring clamp ring instead of a single set screw

Baader IR-Pass 670nm Filter - 2" Round Mounted - FIRP-2 Meade Closeout Eye Relief (mm): 20 mmAbout 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.