Review : Levenhuk Ra R66 ED Doublet Carbon OTA, apochromatic refractor, 66 mm, carbon tube, case
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Main Features : Levenhuk Ra R66 ED Doublet Carbon OTA, apochromatic refractor, 66 mm, carbon tube, case
Levenhuk Ra R66 ED Doublet Carbon OTA
Apochromatic refractor. Objective lens diameter: 66 mm. Focal length: 400 mm
Levenhuk Ra R66 ED Doublet Carbon OTA has a focal length of 15.7 inches and an objective lens diameter of 2.4 inches.
The main features of Levenhuk Ra R66 ED Doublet Carbon OTA are a fully multi-coated two-element objective lens that makes for high-quality views, and a carbon-fiber-reinforced polymer shell that makes the tube lighter and allows it to quickly recover thermodynamic equilibrium.
Levenhuk Ra R66 ED Doublet Carbon OTA comes with a reliable aluminum case - you can easily transport and store your refractor without any fear of damaging it.
Thanks to the retractable dew cap, your instrument will be protected from humidity and always ready when you are.
It has a standard 1.25" barrel diameter so you will be able to use it with eyepieces from different manufacturers.
Specifications:
Optical design: apochromatic refractor
Objective lens: two-element
Objective lens diameter (aperture), in: 2.4
Focal length, in: 15.7
Focal ratio: f/6
Optics material: ED glass
Optics coating: fully multi-coated
Barrel diameter: 1.25"
Optical tube material: carbon
Focuser: 2" dual-speed Crayford
Tube-mount assembly system: quick-release thumbscrew
Optical tube length, in: 12.2
Optical tube diameter, in: 3.2
Optical tube weight, lbs: 3.8


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