Hours:

11am - 11pm EST 
Monday - Friday

1pm-11pm Sat

Tel:

Cell:

919 553-3980

919-614-4297

FAX:

919 553-3980

eMail:

hs3980@nc.rr.com


Thank you for visiting Siebert Optics!
Serving Large Observatories and the Amateur Astronomy Community alike.

200 Short Johnson Road
Clayton, NC 
USA  27520

 

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About Siebert Optics

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         Products:

 

Telescopes for sale

 

 

Eyepieces From .965" / 1.25" / 2.0" / 2.7" / 3.0" / 4.0" / 4.3"

 

BT70 RA88 / Miyauchi / Kowa eyepieces

 

Advanced Barlow Lenses including: Modular and 4 element Telecentric magnification multipliers

 

1.25" and 2" Advanced Binoviewers From $649-$1999

 

 Binoviewer OCA's and Accessories

 

Binoviewer Alignment and Supercharge Services

 

Adapters - Meade Scopes and ETX

 

Binoculars - Quality Modified

 

Large and Small Non Illuminated and Illuminated Cross haired eyepieces.

 

Large and Small Binocular Cleaning and Alignment services $99 Call or Email for details.

 

Camera Focus Adaptors

 

Camera Adapters - Universal

 

H-Alpha Focus Accessories

 

Converters

Special binoviewer services and products you cant get anywhere else 

ICP's Image Correction Prisms for Newts

 

Diagonals

 

Extension Tubes

 

Large refractor modular OTA's

 

Eyepiece Comparisons

 

Focal Length Reducers

 

Miscellaneous

 

Observers Hood - light blocking 

 

Planetary Fleece Blanket 

 

PST Accessories

 

Telecentric Barlow Lenses

 

Zero Magnification Adapter

 

 

 

 

Ladies Corner

Saturn Earrings  

Astronomy Themed  Fleece Blanket 

Astronomy themed totes/purses

 

Free Domain Pictures

Astronomy Accessory Links of 

       products not offered 

       by Siebert Optics

 

Useful Astronomy Links

 

International Dealers

 

Astro photos

 

Non-Astronomy Items

      Fabrics

      Purses

     

 

 

 

 

 

 

 

Email or call to see what Siebertoptics Products are included with the purchase of one of these refractors. --(2" Telecentric Barlows) (Focal Length Reducers) or even (Eyepieces) Etc....

We are flexible to include something you will need for your new refractor.

Every Refractor and piece of information on the Dealers Website are listed here on this page for these APO scopes. For Questions and possible uses for these refractors. Call (919 553 3980) or Email HarrySiebert@nc.rr.com

In addition

We currently have the following special limited time promotion which will be valid through August 31:

- with the purchase of Levenhuk telescopes (except Strike series), you will receive "See it all!" Astronomer's Handbook ($24.95 value) and Levenhuk Space Posters Set ($29.95 value) absolutely free;
- with the purchase of any Levenhuk Ra series OTA, we'll be giving away one of the filters below:
 

Levenhuk Ra H-Beta 1.25'' Filter ($109.95 value)
Levenhuk Ra H-Beta 2'' Filter ($129.95 value)
Levenhuk Ra UHC 1.25'' Filter ($79.95 value)
Levenhuk Ra UHC 2'' Filter ($109.95 value)

 

Levenhuk Ra R66 ED Doublet Carbon OTA

S.O. Guaranties the QC of the products on this page. And will discontinue products that do not meet proper standards.

This Scope  sell for $449.95. (#RaR66ED

 

Temporarily out of stock.

 

       

This is a compact refractor for visual and photographic use. It has a 66-mm clear aperture and a focal length of 400 mm. It has a carbon fiber shell so it extremely light in weight, and the carbon fiber shell significantly reduces the time it takes your telescope to adjust to outside temperatures. With a standard barrel diameter of 1.25'', this telescope readily accepts a variety of eyepieces which includes eyepieces from various manufacturers. Also, for your convenience, the Levenhuk Ra R66 ED Doublet Carbon OTA comes with an aluminum case for you to store and transport your telescope.

The apochromatic objective lens has two lenses that significantly cuts down false color to a barely noticeable minimum. The fully multi-coated lenses, made of ED glass, yield crisp, clear views of the night sky. On the front end of the telescope tube there is a sliding dew shield that keeps the optics from fogging up on you. In addition, it comes standard with a 1.25'' barrel diameter of the focuser allows you to use a number of accessories with this refractor. Upgradeable to a 2" diagonal.


Specifications
Optical design apochromatic refractor
Objective lens two-element
Objective lens diameter (aperture), mm 66
Focal length, mm 400
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, mm 310 in 12.2
Optical tube diameter, mm 80. 5in 3.2
Optical tube weight, kg 1.7lbs 3.8

 

Warranty: 3 years
Weight: 9.5 lb. (4.3 kg.)

Package size (LxWxH): 16.111.48.3 in. (41.029.021.0 cm.)
 

 

 

Levenhuk Ra R72 ED Doublet OTA

S.O. Guaranties the QC of the products on this page and will discontinue products that do not meet proper standards.

This Scope  sell for $399.95. (#RaR72ED

 

Temporarily out of stock.

 

 

       

  

 

This compact refractor, the best for observing lunar, planets, and open star clusters. Although limited in it's visual deep sky ability it can excel in photographic applications. This is particularly true with a SiebertOptics 0.6x focal length reducer. It has a focal length of 432 mm and an clear aperture of 72 mm. This telescope allows you to observe Venus's phases, sharper, clearer images of lunar craters and even Saturn's beautiful rings.

The apochromatic objective lens, which is fully multi-coated, produces the best quality views with no false color. The aluminum optical tube as well as the body of the Crayford focuser have a gorgeously glossy anodized finish. The sliding dew shield keeps the objective lens from fogging. Because of the standard barrel diameter of 1.25", you can use accessories from any manufacturer. Upgradeable to a 2" diagonal. To protect your scope from getting damaged it comes with an aluminum case for storing and transporting.

Specifications
Optical design apochromatic refractor
Objective lens two-element
Optics material ED glass
Optics coating fully multi-coated
Objective lens diameter, mm 72
Focal length, mm 432
Focal ratio f/6
Barrel diameter 1.25"
Optical tube material metal
Focuser 2" dual-speed Crayford
Tube-mount assembly system quick-release thumbscrew
Optical tube length, mm 310 in 12.2
Optical tube diameter, mm 90.5 in 3.6
Optical tube weight, kg 2.3 lbs 5.1

Warranty: 3 years
Weight: 11 lb. (5.0 kg.)
Package size (LxWxH): 16.111.48.3 in. (41.029.021.0 cm.)

 

 

Levenhuk Ra R80 ED Triplet OTA

S.O. Guaranties the QC of the products on this page. And will discontinue products that do not meet proper standards.

This Scope  sell for $779.95. (#RaR80EDTri

 

          

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A compact refractor for visual observations with an 80-mm objective lens. The apochromatic objective lens has three lenses that reduces false color to a barely noticeable minimum. It has fully multi-coated lenses that are made of ED glass and yield crisp, clear views of the night sky. The metal telescope tube was made to follow a more traditional design. This telescope tube, fitted with a dual-speed Crayford focuser, guarantees high precision focusing with no backlash.


Specifications
Optical design apochromatic refractor
Objective lens three-element, FPL 53 glass
Objective lens diameter (aperture), mm 80
Focal length, mm 480
Focal ratio f/6
Optics material ED glass
Optics coating fully multi-coated
Optical tube material metal
Focuser 2'' dual-speed Crayford (with 1.25'' adapter)
Tube-mount assembly system dovetail plate
Optical tube dimensions, mm 381x533 in 15x21
Optical tube diameter, mm 102 in 4
Optical tube weight, kg 2.6lbs 5.7

Warranty: 3 years
Weight: 10.6 lb. (4.8 kg.)
Package size (LxWxH): 18.111.48.3 in. (46.029.021.0 cm.)

 

 

Levenhuk Ra R80 ED Doublet OTA

S.O. Guaranties the QC of the products on this page. And will discontinue products that do not meet proper standards.

This Scope  sell for $799.95. (#RaR80EDdou

       

  


This is a high-quality refractor. The objective lens diameter is 80 mm and the focal length is 500 mm. The fully multi-coated apochromatic ED glass lenses has really low dispersion and little chromatic aberration and as a result produce bright views across the field of view. The telescope optical tube and the dual-speed Crayford focuser's body have a special anodized finish, thus giving the refractor an eye-catching shine.

There is a sliding dew shield fitted over the optical tube that keeps the objective lens from fogging up and reduces the glare on the lens. Because the focuser accepts 1.25" eyepieces you can easily use accessories that suit your needs. Upgradeable to a 2" diagonal. To make storing and transporting easy this telescope comes with a sturdy aluminum case.

Specifications
Optical design apochromatic refractor
Objective lens two-element
Optics material ED glass
Optics coating fully multi-coated
Objective lens diameter, mm 80
Focal length, mm 500
Focal ratio f/6.25
Barrel diameter 1.25"
Optical tube material metal
Focuser 2" dual-speed Crayford
Tube-mount assembly system quick-release thumbscrew
Optical tube length, mm 390 in 15.4
Optical tube diameter, mm 100.5 in 4
Optical tube weight, kg 3 lbs 6.6

Warranty: 3 years
Weight: 15.2 lb. (6.91 kg.)
Package size (LxWxH): 22.814.68.7 in. (58.037.022.0 cm.)

 

 

Levenhuk Ra R90 ED Doublet OTA

S.O. Guaranties the QC of the products on this page. And will discontinue products that do not meet proper standards.

This Scope  sell for $949.95. (#RaR90EDdou

 

 

A compact refractor with an objective lens of 90-mm diameter and a focal length of 500 mm. The apochromatic objective lens has two lenses that lessen false color to a barely noticeable minimum. The fully multi-coated ED glass lenses provide crisp, clear views of the night sky. On the front end of the telescope tube there is a sliding dew shield that protects the optics from moisture. The metal telescope tube was made to follow a more traditional design.

Because there is a dual-speed Crayford focuser fitted on the telescope tube there is high precision focusing with no backlash. The 1.25'' barrel diameter of the focuser allows you to use a number of accessories from a variety of manufacturers. Upgradeable to a 2" diagonal. This scope come with a aluminum case to avoid damage to the scope and to provide easy storage and transport.

Specifications
Optical design apochromatic refractor
Objective lens two-element
Objective lens diameter (aperture), mm 90
Focal length, mm 500
Focal ratio f/5.5
Optics material ED glass
Optics coating fully multi-coated
Barrel diameter 1.25"
Optical tube material metal
Focuser 2'' dual-speed Crayford focuser
Tube-mount assembly system quick-release thumbscrew
Optical tube length, mm 400 in 15.7
Optical tube diameter, mm 120 in 4.7
Optical tube weight, kg 3.4 lbs 7.5

Warranty: 3 years
Weight: 16.3 lb. (7.4 kg.)
Package size (LxWxH): 22.814.68.7 in. (58.037.022.0 cm.)     

  

 

Levenhuk Ra R80 ED Doublet Carbon OTA

S.O. Guaranties the QC of the products on this page. And will discontinue products that do not meet proper standards.

This Scope  sell for $999.95. (#RaR80EDdoucar

 

 

This is a compact refractor used for visual observations. It has a 80-mm objective lens with a focal length of 500 mm. Because the telescope tube is made of carbon fiber it is very lightweight, is less susceptible to outdoor temperature changes, and needs less time to adapt to outside temperatures than regular refractors.

The apochromatic objective lens consists of two lenses that reduce false color to a barely noticeable minimum. The fully multi-coated lenses, that are made of ED glass, produce crisp and clear sights of the night sky. The sliding dew shield on the front end of the telescope tube shields the optics from moisture.

This telescope tube has a dual-speed Crayford focuser so it has high precision focusing with no backlash. The 1.25'' barrel diameter of the focuser allows you to be able to use a wider variety of accessories with this telescope. Upgradeable to a 2"diaganol. This telescope comes with an aluminum case for easy storage and transport.

Specifications
Optical design apochromatic refractor
Objective lens two-element
Objective lens diameter (aperture), mm 80
Focal length, mm 500
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, mm 390 in 15.4
Optical tube diameter, mm 100.5 in 4
Optical tube weight, kg 2.8 lbs 6.2

Warranty: 3 years
Weight: 15.2 lb. (6.9 kg.)
Package size (LxWxH): 22.814.68.7 in. (58.037.022.0 cm.)     

  

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Levenhuk Ra R110 ED Doublet OTA

S.O. Guaranties the QC of the products on this page. And will discontinue products that do not meet proper standards.

This Scope  sell for $1,249.95. (#RaR110EDdou

 

 

 

This powerful refractor has an aperture of 110 mm that produces sharp, clear images of celestial objects with no false color. Also has respectable deep sky capability, as well as profound photographic capabilities. To add to the quality of the viewing area the fully multi-coated objective lens has one element that is made with ED glass, so it has extra low dispersion. To eliminate glare the edges of the apochromatic objective lens have been blackened.

Because the optical tube is fitted with a dovetail mounting bracket you can attach it to a mount or disassemble the instrument in a short amount of time. To make the OTA lightweight and durable the tube and the dual-speed Crayford focuser are made of aluminum. Furthermore, the optical tube has a sliding dew shield that lessens light pollution and eliminates fogging. This telescope also come with a sturdy aluminum case to make storing and transporting save and easy.


Specifications
Optical design apochromatic refractor
Objective lens two-element, FPL 53 glass
Objective lens diameter (aperture), mm 110
Focal length, mm 770
Focal ratio f/7
Optics material ED glass
Optics coating fully multi-coated
Optical tube material metal
Focuser 3" dual-speed Crayford
Tube-mount assembly system dovetail plate
Optical tube dimensions, mm 648x838 in 25.5x33
Optical tube diameter, mm 146 in 5.7
Optical tube weight, kg 5.5 lbs 12.2

Warranty: 3 years
Weight: 24.9 lb. (11.3 kg.)
Package size (LxWxH): 29.913.410.6 in. (76.034.027.0 cm.)      

  

 

Levenhuk Ra R115 ED Triplet OTA

S.O. Guaranties the QC of the products on this page. And will discontinue products that do not meet proper standards.

This Scope  sell for $1,849.95. (#RaR115EDtri

 

 

With a objective lens of 115-mm diameter this refractor is perfect for your most demanding visual and photographic applications. For precision focusing and to eliminate backlash the telescope tube is fitted with a modern dual-speed Crayford focuser. The apochromatic objective lens has three lenses that lessen chromatic aberration. The fully multi-coated ED glass triplet provide crisp, clear images of the night sky. To follow a more traditional design the telescope tube is made of metal.


Specifications
Optical design apochromatic refractor
Objective lens three-element, FK61 glass
Objective lens diameter (aperture), mm 115
Focal length, mm 805
Focal ratio f/7
Optics material ED glass
Optics coating fully multi-coated
Optical tube material metal
Focuser 3'' dual-speed Crayford focuser
Tube-mount assembly system dovetail plate
Optical tube dimensions, mm 724x876
in 28.5x34.5
Optical tube diameter, mm 146
in 5.7
Optical tube weight, kg 8.4
lbs 18.5

Warranty: 3 years
Weight: 32.2 lb. (14.6 kg.)
Package size (LxWxH): 34.611.414.2 in. (88.029.036.0 cm.)     

 

 

Levenhuk Ra R102 ED Triplet OTA

S.O. Guaranties the QC of the products on this page. And will discontinue products that do not meet proper standards.

This Scope  sell for $1,899.95. (#RaR102EDtri

 

 

 

 

Best suited for visual observations of celestial bodies this refractor has an aperture of 102-mm and a focal length of 714mm, . For precision focusing the telescope tube has a modern dual-speed Crayford focuser that also eliminates backlash. The apochromatic objective lens is made of three lenses that lessen false color. The fully multi-coated lenses, made of ED glass, produce crisp, clear views of the night sky. Following a more traditional design the telescope tube of this model is made of metal.


Specifications
Optical design apochromatic refractor
Objective lens three-element, FPL 53 glass
Objective lens diameter (aperture), mm 102
Focal length, mm 714
Focal ratio f/7
Optics material ED glass
Optics coating fully multi-coated
Optical tube material metal
Focuser 3'' dual-speed Crayford focuser
Tube-mount assembly system dovetail plate
Optical tube dimensions, mm 610x762 in 24x30
Optical tube diameter, mm 127 in 5
Optical tube weight, kg 5.7 lbs 12.5

Warranty: 3 years
Weight: 27.6 lb. (12.5 kg.)
Package size (LxWxH): 29.511.015.0 in. (75.028.038.0 cm.)       

 

 

Levenhuk Ra R130 ED Triplet OTA

S.O. Guaranties the QC of the products on this page. And will discontinue products that do not meet proper standards.

This Scope  sell for $2,899.95. (#RaR130EDtri

 

 

 

 

To provide sharp and clear views of celestial objects this refractor has a 130-mm objective lens. The apochromatic objective lens has three lenses that lessen chromatic aberration. It has fully multi-coated lenses made of ED glass. On the front end of the telescope tube the sliding dew shield protects the optics from moisture when needed the most. The telescope tube is made of metal to follow a more traditional design.

The telescope tube has a modern dual-speed Crayford focuser for precision focusing and to eliminate backlash. So that you can use a number of accessories from a variety of manufacturers this telescope is equipped with an 1.25'' barrel focuser. This scope also comes with an aluminum case for you to store and transport easily.


Specifications
Optical design apochromatic refractor
Objective lens three-element, FK61 glass
Objective lens diameter (aperture), mm 130
Focal length, mm 910
Focal ratio f/7
Optics material ED glass
Optics coating fully multi-coated
Optical tube material metal
Focuser 3'' dual-speed Crayford focuser
Tube-mount assembly system dovetail plate
Optical tube dimensions, mm 813x978
in 32x38.5
Optical tube diameter, mm 178
in 7
Optical tube weight, kg 10.2
lbs 22.4

Warranty: 3 years
Weight: 41.9 lb. (19.0 kg.)
Package size (LxWxH): 37.414.613.0 in. (95.037.033.0 cm.)

 

   

 

 

 
 

 

 
 

    

 

 

 

 

   

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

All listed products come with a 30-day money-back guarantee* unless otherwise stated.

Specialty order items are not refundable (items made specifically for you).

We welcome
International orders!.

GIFT CERTIFICATES
available in any dollar amount you wish to purchase.

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