Free Express Shipping! Alpine Astronomical Baader 685nm IR-Pass Filter (1.25") Ideal for Planetary Viewing and Imaging, View in the Long Deep-Red Wavelength, IR Phantom-Group Optical Multi-Coatings, Passes the Narrow 685nm Bandwidth, Fits Standard...
Free Express Shipping! Alpine Astronomical Baader 685nm IR-Pass Filter (1.25") Ideal for Planetary Viewing and Imaging, View in the Long Deep-Red Wavelength, IR Phantom-Group Optical Multi-Coatings, Passes the Narrow 685nm Bandwidth, Fits Standard...