Hours:

11am - 11pm EST 
Monday - Friday

1pm-11pm Sat 

 
Cell:

919-614-4297 Cell

eMail:

harrysiebert@nc.rr.com

Above is to send in orders and Q&A.

Below is My Paypal address

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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Home Page

About Siebert Optics

Contact Information

 

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         Products:

 

 

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

 

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

 

BT70 RA88 / Miyauchi / Kowa eyepieces

 

Binoviewer Alignment and Supercharge Services

 

(Specialized Binoviewer services you can't get anywhere else)

 

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

 

Adapters - Meade Scopes and ETX

 

Binoculars - Quality Modified

 

Large and Small Non Illuminated and Illuminated Cross haired eyepieces.

 

Astrographs/Telescopes

 

 

 

Camera Focus Adaptors

 

Camera Adapters - Universal

 

H-Alpha Focus Accessories

 

Converters

 

Special binoviewer services and products you cant get anywhere else 

Also can  >  Click here.   And here.

 

ICP's Image Correction Prisms for Newts

 

Diagonals

 

Extension Tubes

 

Large refractor modular OTA's

 

Eyepiece Comparisons

 

Focal Length Reducers

 

Miscellaneous

 

Planetary Fleece Blanket 

 

PST Accessories

 

Telecentric Barlow Lenses

 

Zero Magnification Adapter

 

 

 

 

Ladies Corner

Saturn Earrings  

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

     

 

 

 

 

 

(S)tar (S)plitters Ortho or SS3 Series/SS4series below.

See our UT Monocentrics and Planesphere eyepiece line. Click here.

Siebert Optics SS3 Modified Orthos. Enhanced 5 element design. 

Not available at this time. See S4

   The Star Splitter or SS3 series. With 60 deg FOV and 10mm ER. Large eye lenses.

There may be other Focal Lengths are available not listed here. Inquire for details.  Click here

Specify series and  size. Example: (SS3 / 4.9mm)

Eyepiece can be ordered in Brass. Add $50

2.9mm,    3.4mm

3.9mm,    4.4mm

4.9mm,    5.4mm

5.9mm,    6.4mm

6.9mm,    7.4mm

7.9mm,    8.9mm

9.4mm,    9.9mm

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 8.9mm-9.9mm $99. These excel from f/6 up (Brass add $30)

 2.9mm - 4.9mm $139. These excel from f/3.3 up (Brass add $50)

 5.4mm-7.9mm $149. These excel from f/3.3 up (Brass add $50)

 

 

 

 

 

Siebert Optics SS4 Modified Orthos. Enhanced 5 element design. 

   The Star Splitter or SS4 series. With 68 deg FOV and 17mm ER. Large eye lenses.

There may be other Focal Lengths are available not listed here. Inquire for details.  Click here

Specify series and  size. Example: (SS4 / 4.9mm)

1.25" Eyepiece can be ordered in Brass. Add $50 and 2" Add $60

2.4mm,   2.9mm  

3.4mm,   3.9mm

4.4mm,   4.9mm

5.4mm,   5.9mm

6.4mm,   6.9mm

7.4mm,   7.9mm 

2.4mm - 2.9mm $189. 1.25" These excel from f/3.3 up (Brass add $50)

2.4mm - 2.9mm $219. 2" These excel from f/3.3 up (Brass add $60)

3.4mm - 3.9mm $179. 1.25" These excel from f/3.3 up (Brass add $50)

3.4mm - 3.9mm $209. 2" These excel from f/3.3 up (Brass add $60)

2.4mm - 7.9mm $169. 1.25" These excel from f/3.3 up (Brass add $50)

4.4mm - 7.9mm $199. 2" These excel from f/3.3 up (Brass add $60)

 

 Outstanding performance with a lower price. Now these are made in more powerful size.

 

  It all comes together here. Razor sharp performance, Good eye relief and 60+ deg FOV. Sharper and with higher contrast than anything you have tried.   30 day money back guarantee.  

Brass Ortho's available >Click> 

 

This is an Enhanced Orthoscopic design that blends the best of the Abbe Ortho design with additional advanced features like ER and Large FOV.

 

All eyepieces are  threaded for filters 

 

                                 

 

 

All eyepieces are  threaded for filters

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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!.

We accept Visa, Mastercard,

Discover

  American Express. U.S. Money Orders, and Personal Checks (held 10 working days for clearing)Online payments may be made securely through

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