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BaK-4 prisms and fully multi-coated optics utilizing Celestrons proprietary XLT coating technology
compact setup
The Celestron PWI software can also control the focus motor
This accessory which is of superb quality effectively reduces the telescope’s focal length by a factor of 0
Astrodon SHO Filter Set 5nm with Extra free NIR filter! - 1.25" Baader BaK-4 prisms and fully multi-coatedIn excellent condition. Includes Astrodon NIR Luminance >700nm 1. 25" filter for free! Astrodon Narrowband filters set a new bar of performance and durability for imaging and research. The narrow 5 and 3 nm bandwidths enhance contrast of emission targets by lowering your background signal. The guaranteed >90% transmittance at the emission wavelength provides you with the highest signal available. This guaranty is expensive to manufacture for such
