Levenhuk Ra R80 ED Doublet Carbon OTA, apochromatic refractor, 80 mm, carbon tube, case Best Reviews

Best Review Levenhuk Ra R80 ED Doublet Carbon OTA, apochromatic refractor, 80 mm, carbon tube, case

This on-line sellers provide the best quality and save price cost which included super conserve shipping (in U.S.A. only) for Levenhuk Ra R80 ED Doublet Carbon OTA, apochromatic refractor, 80 mm, carbon tube, case. Reading opinions offers you with a a whole lot of fuller details in the cons and pros on the Levenhuk Ra R80 ED Doublet Carbon OTA, apochromatic refractor, 80 mm, carbon tube, case.

Levenhuk Ra R80 ED Doublet Carbon OTA
Apochromatic refractor. Objective lens diameter: 80 mm. Focal length: 500 mm

Levenhuk Ra R80 ED Doublet Carbon OTA has a focal length of 19.7 inches and an objective lens diameter of 3.2 inches. The telescope tube made of carbon-fiber-reinforced polymer makes the telescope lighter and allows decreasing focal length dependency on temperature spans.

Using carbon-fiber-reinforced polymer also makes for quick recovery of the thermodynamic equilibrium of the tube. As any other Levenhuk Ra telescope tube, Levenhuk Ra R80 ED Doublet Carbon model provides high-quality clear views due to fully multi-coated optics. Moreover, this telescope has a dual-speed Crawford focuser that ensures high precision focusing with no backlash.

Levenhuk Ra R80 ED Doublet Carbon OTA also has a barrel diameter of 1.25'' so you won't have any problems using it with different accessories.

With Levenhuk Ra R80 ED Doublet Carbon OTA you will also get a sturdy aluminum case -a great addition that lets you store and transport your instrument with ease.

Specifications:
Optical design: apochromatic refractor
Objective lens: two-element
Objective lens diameter (aperture), in: 3.2
Focal length, in: 19.7
Focal ratio: f/6.25
Optics material: ED glass
Optics coating: fully multi-coated
Barrel diameter: 1.25"
Optical tube material: carbon
Focuser: 2'' dual-speed Crayford focuser
Tube-mount assembly system: quick-release thumbscrew
Optical tube length, in: 15.4
Optical tube diameter, in: 4
Optical tube weight, lbs: 6.2

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Levenhuk Ra R80 ED Doublet Carbon OTA, apochromatic refractor, 80 mm, carbon tube, case Feature

Apochromatic refractor

Objective lens diameter: 80 mm

Focal length: 500 mm

Best Stellarvue 90mm Raptor f/7 Triplet APO Teleseope w/ Carbon Fiber Tube & 2.5" Dual Speed Focuser

Stellarvue 90mm Raptor f/7 Triplet APO Teleseope w/ Carbon Fiber Tube & 2.5" Dual Speed Focuser by Stellarvue

Stellarvue 90mm Raptor APO Triplet Refractor with 2.5" Stellarvue Focuser, SVR90T-25SV.

Included Accessories Dual Mounting Rings and a 2.5" Stellarvue dual speed focuser, C18 Airline Carry On Case, Dual Hinged Rings, 2" and 1.25" Adapters.
Comes with a full 2 year Stellarvue factory warranty.

When it comes time to Stellarvue Refractors the first thing that comes to mind is quality. The reason is simple, Stellarvue President, Vic Maris, personally puts each telescope through extensive quality control procedures to ensure an instrument superior in quality when compared to the competition.

This Stellarvue 90 comes equipped with FPL-53 glass which one of the best grades of optical glass found in our industry today. In addition to the high quality objective lens set Stellarvue equips each 90mm APO telescope with a precise 2.5" Stellarvue Focuser that has a 10:1 fine focus ratio.

The Stellarvue 90 is great for both visual observation and astro photography. The f/7 focal ratio offers great versatility that astronomers have come to love. Each Stellarvue Telescope comes with a full 2 Year Stellarvue Warranty.

Read more Stellarvue 90mm Raptor f/7 Triplet APO Teleseope w/ Carbon Fiber Tube & 2.5" Dual Speed Focuser

Stellarvue 90mm Raptor f/7 Triplet APO Teleseope w/ Carbon Fiber Tube & 2.5" Dual Speed Focuser Feature

Assembled and triple tested at Stellarvue's Auburn California facility.

Built with FPL-53 glass the Stellarvue 90 offers amazing color free clarity.

A 2.5" Stellarvue focuser allows astronomers to precisely dial in on their favorite celestial objec

The Stellarvue 90 APO Refractor has a 630mm focal length with a f/7 focal ratio.

The optical tube is constructed of super lightweight carbon fiber and has a built in retractable de

%$$$ Quality Levenhuk Ra 200N F4 Carbon OTA, Newtonian reflector, 200 mm, quartz-aluminum coating, carbon tube

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Main Features : Levenhuk Ra 200N F4 Carbon OTA, Newtonian reflector, 200 mm, quartz-aluminum coating, carbon tube

Newtonian telescope

Primary mirror diameter: 200 mm

Levenhuk Ra 200N F4 Carbon OTA
Newtonian telescope. Primary mirror diameter: 200 mm

Levenhuk Ra 200N F4 Carbon OTA has a focal length of 31.5 inches and a primary mirror diameter of 7.9 inches. The tube is designed for astrophotography but still can be successfully used for visual observations.

The main feature of this tube is the carbon-fiber-reinforced polymer used for its shell, material that makes the tube lighter and allows to decrease focal length dependency on temperature spans. This material also makes for quick recovery of the thermal equilibrium. In addition to that, Levenhuk Ra 200N F4 Carbon OTA comes with a stable 2'' dual-speed Crayford focuser and built-in fan of 3.2 inches diameter for cooling the primary mirror.

The kit includes:
- Levenhuk Ra 200N F4 Carbon optical tube
- Finder scope
- Finder scope base
- Cooling fan
- Batteries kit (6 pieces)
- User guide and warranty

Specifications:
Optical design: Newtonian reflector
Optics material: BK-7 glass
Optical coating: quartz-protected aluminum
Telescope tube: carbon
Primary mirror diameter (aperture), in: 7.9
Focal length, in: 31.5
Focal ratio: f/4
Focuser: 2'' dual-speed Crayford focuser
Tube-mount assembly system: dovetail plate
Finder scope: optical, 8x50
Optical tube length, in: 30.3
Optical tube diameter, in: 9.4
Optical tube weight, lbs: 13.8

%$$$ Quality Levenhuk Ra R66 ED Doublet Carbon OTA, apochromatic refractor, 66 mm, carbon tube, case

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Save Price Levenhuk Ra R66 ED Doublet Carbon OTA, apochromatic refractor, 66 mm, carbon tube, case. Purchase around the merchant 's on-line looking and browse reviews. If you're attempting to locate Levenhuk Ra R66 ED Doublet Carbon OTA, apochromatic refractor, 66 mm, carbon tube, case with one of the most effective worth. This could be the most efficient offers for you. Exactly where you may discover these item is by online looking outlets? Read the review on Levenhuk Ra R66 ED Doublet Carbon OTA, apochromatic refractor, 66 mm, carbon tube, case Now, it 's spacial value. for that reason usually do not shed it.

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Main Features : Levenhuk Ra R66 ED Doublet Carbon OTA, apochromatic refractor, 66 mm, carbon tube, case

Apochromatic refractor

Objective lens diameter: 66 mm

Focal length: 400 mm

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

$$$$$ Revews Levenhuk Ra 200RC F8 Carbon OTA, Ritchey-Chrétien, 200 mm, dielectric coating, carbon tube

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Levenhuk Ra 200RC F8 Carbon OTA, Ritchey-Chrétien, 200 mm, dielectric coating, carbon tube Description

Ritchey-Chretien telescope

Objective lens diameter: 200 mm

Focal length: 1600 mm

Levenhuk Ra 200RC F8 Carbon OTA
Ritchey-Chrétien. 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.

As every other Levenhuk Ra Ritchey-Chrétien telescope tube, this model has a quartz primary mirror covered with 99% reflection power dielectric coating. This model 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-Chrétien model.

Specifications:
Optical design: Ritchey-Chrétien
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