Ra 200RC F8 Carbon OTA by Levenhuk

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$1,501.88 / EA
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Ritchey-Chretien. Objective lens diameter: 200 mm. Focal length: 1600 mm Levenhuk Ra 200RC F8 Carbon OTA is designed specifically for astrophotography and has a focal length of 63.9 inches and an objective lens diameter of 8 inches. The main feature of this tube is its shell made of carbon-fiber-reinforced polymer, material that makes the tube lighter and allows decreasing focal length dependency on temperature spans. This material also makes for quick recovery of the thermal equilibrium due to its low coefficient of thermal expansion and high thermal conduction. This model has a primary mirror made of BK-7 glass and covered with 99% reflection power dielectric coating. The telescope is also equipped with a dual-speed Crayford focuser that ensures high precision focusing with no backlash. The model comes with a built-in fan for cooling the primary mirror. Another important advantage of Levenhuk Ra 200RC F8 Carbon OTA compared to Newtonian telescopes is its smaller dimensions so a smaller mount can be used. We recommend using the Levenhuk 0.75x focal reducer with any Ritchey-Chretien model. Specifications: Optical design: Ritchey-Chretien Mirror shape: hyperboloid Optics material: BK-7 glass Optics coating: dielectric, 99% reflectivity Primary mirror diameter (aperture), in: 7.9 Focal length, in: 63 Focal ratio: f/8 Secondary mirror minor axis, in: 3.5 Focuser: 2''dual-speed Crayford Tube-mount assembly system: dovetail plate Optical tube material: carbon Optical tube length, in: 18.7 Optical tube diameter, in: 9 Optical tube weight, lbs: 16.3 Total weight, lbs: 22.9

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