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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         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

     

 

 

 

 

 

(S)tar (S)plitters Ortho or SS3 Series.

(S)tar (S)plitters Ortho or SS4 Series.

The SS3 and SS4 have the same optical performance but the SS4 Enhances some features.

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

Siebert Optics SS3 Modified Orthos. Enhanced 5 element design. 

   The Star Splitter or SS3 series. With 60 deg FOV and 12mm 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)

1.9mm,   <<New

2.4mm,   <<New

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-7.9mm $139. These excel from f/3.3 up (Brass add $50)

 

 

 

 

 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 

 

                                                       

Siebert Optics SS4 Modified Orthos. Enhanced 5 element design. 

  These below are all new design. The Star Splitter Triple-S series. With 60 deg FOV and 15mm ER. Larger eye lenses. Rotating eyecup.

There may be other Focal Lengths between 4.9mm and 12.4mm available not listed here. Inquire for details.  Click here

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

4.9mm

5.4mm,    5.9mm

6.4mm,    6.9mm

7.4mm,    7.9mm

8.4mm,     8.9mm

9.4mm,     9.9mm

10.4mm,  10.9mm

11.4mm,  11.9mm

12.4mm, 

$169. These excel from f/3.3 up (Brass add $50) *

 

 

 

 

 Compare These New Orthos to the Above series.

 

 

 

Totally new design! 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 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.

I accept PayPal, the #1 payment service in online auctions!

We accept Visa, Mastercard,

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  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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