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

Contact Information

 

 

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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

     

 

 

 

 

 

 

 

Included with the purchase of one of these Reflectors is your choice of a 2x Barlow or a 19mm, 66 degree SWA eyepiece. Excluding the 200N F5, that only qualifies for the 19mm, 66 degree SWA eyepiece.

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

Every Reflector 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 Reflector. 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 200N F4 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 $479.95. (#Ra200NF4

The telescope tube has a built-in primary mirror cooling fan.

 

 

 

A Newtonian telescope that has 200-mm primary mirror with a focal length of 800 mm. This telescope has tremendous deep sky ability and is designed to excel in astrophotography. Following a more traditional design the telescope tube is made of metal,.

Fitted with a modern 2'' dual-speed Crayford focuser you can use accessories - including coma correctors - from various other manufacturers. The Crayford focuser also lessens vignetting and allows you to attach and detach your camera with ease. The linear ball bearings of this focuser provide additional stability, and reduces backlash. The telescope tube has a built-in primary mirror cooling fan.


The kit includes:
Levenhuk Ra 200N F4 optical tube
Finder scope
Finder scope base
Cooler 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 metal
Primary mirror diameter (aperture), mm 200
Focal length, mm 800
Focal ratio f/4
Barrel diameter 2", 1.25"
Focuser 2''dual-speed Crayford focuser
Tube-mount assembly system dovetail plate
Finder scope optical, 8x50
Optical tube length, mm 720 in 28.3
Optical tube diameter, mm 240 in 9.4
Optical tube weight, kg 7.3 lbs 16


Warranty: 3 years
Weight: 28 lb. (12.7 kg.)
Package size (LxWxH): 34.316.513.4 in. (87.042.034.0 cm.)

 

 

 

Levenhuk Ra 250N F4 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 $649.95. (#Ra250NF4

The telescope tube has a built-in primary mirror cooling fan.

       

This Newtonian telescope, with a 250-mm primary mirror and a focal length of 1000 mm, has tremendous deep sky ability and is designed to excel in astrophotography. The telescope tube is made of metal, following a more traditional design.

This telescope is fitted with the modern 2" dual-speed Crayford focuser allowing you to use accessories - including coma correctors - from other manufacturers. It also reduces vignetting and allows you to attach your camera with ease. Linear ball bearings of this focuser provide for additional stability, and reduce backlash. The telescope tube has a built-in primary mirror cooling fan.


The kit includes:
Levenhuk Ra 250N F4 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 metal
Primary mirror diameter (aperture), mm 250
Focal length, mm 1000
Focal ratio f/4
Barrel diameter 2", 1.25"
Focuser 2" dual-speed Crayford focuser
Tube-mount assembly system dovetail plate
Finder scope optical, 8x50
Optical tube length, mm 980 in 38.6
Optical tube diameter, mm 310 in 12.2
Optical tube weight, kg 13.3lbs 29.3


Warranty: 3 years
Weight: 43 lb. (19.5 kg.)
Package size (LxWxH): 43.719.316.9 in. (111.049.043.0 cm.)

 

 

 

Levenhuk Ra 200N F4 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 $759.95. (#Ra200NF4car

The telescope tube has a built-in primary mirror cooling fan.

 

This Newtonian telescope has a 200-mm primary mirror with a focal length of 800 mm. This telescope has tremendous deep sky ability and is designed to excel in astrophotography. To make it lightweight and less susceptible to temperature changes the telescope tube is made of carbon fiber, which also requires less time to adapt to outside temperatures than regular reflectors. Fitted with a modern 2'' dual-speed Crayford focuser, linear ball bearings provide for stability and lessen backlash. The telescope tube has a built-in primary mirror cooling fan (12V, 80 mm in diameter).

The kit includes:
Levenhuk Ra 200N F4 Carbon optical tube
Finder scope
Finder scope base
Cooler 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), mm 200
Focal length, mm 800
Focal ratio f/4
Focuser 2'' dual-speed Crayford focuser
Tube-mount assembly system dovetail plate
Finder scope optical, 8x50
Optical tube length, mm 770 in 30.3
Optical tube diameter, mm 240 in 9.4
Optical tube weight, kg 6.3 lbs 13.8


Warranty: 3 years

Weight: 26.5 lb. (12.0 kg.)
Package size (LxWxH): 34.316.113.6 in. (87.041.034.5 cm.)

 

 

Levenhuk Ra 200N F5 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 $369.95. (#Ra200NF5

The telescope tube has a built-in primary mirror cooling fan.

 

 

A Newtonian telescope that has a 200-mm primary mirror with a focal length of 1000 mm. Fitted with a dual-speed Crayford focuser, this focuser lessens backlash and provides for high-precision focusing during stargazing and astrophotography sessions.

The telescope mirrors are made of Pyrex sheet glass, which has a low thermal expansion coefficient. The scope has fully multi-coated reflective aluminum mirrors and is protected with a quartz coating. The telescope tube is made of metal, following a more traditional design. The tube has a built-in primary mirror cooling fan (12V, 80 mm in diameter).

.
The kit includes:
Levenhuk Ra 200N F5 optical tube
Finder scope
Finder scope base
Cooler 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 metal
Primary mirror diameter (aperture), mm 200
Focal length, mm 1000
Focal ratio f/5
Barrel diameter 2", 1.25"
Focuser 2" dual-speed Crayford
Tube-mount assembly system dovetail plate
Finder scope optical, 8x50
Optical tube length, mm 940
in 37
Optical tube diameter, mm 240
in 9.4
Optical tube weight, kg 8.3
lbs 18.2


Warranty: 3 years
Weight: 27 lb. (12.25 kg.)
Package size (LxWxH): 39.415.712.4 in. (100.040.031.5 cm.)

 

 

       

  

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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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