Hours:

11am - 11pm EST 
Monday - Friday

1pm-11pm Sat

Tel:

Cell:

919 553-3980  Primary
After 4 rings will ring through to Personal below.

 919-614-4297 personal

FAX:

919 553-3980 Call first then fax

eMail:

harrysiebert@nc.rr.com Q&A

hs3980@nc.rr.com  PayPal


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

 

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 

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

     

 

 

 

 

 

 

End Cap solutions for many applications 

Including T - 2 and T thread applications 

   

Delrin 1.25" or 2" ID (Female) caps for diagonal inlet $15

Delrin 1.25" or 2" OD (Male) for top eyepiece holder $15 

0r both ID and OD Delrin caps for $15 

The above is for all 1.25" and 2" cap applications both male and female

 

Delrin Binoviewer Cap set with bottom cap and top male plugs  all 1.25" $30  

Delrin Binoviewer Cap set with 2" bottom cap and top 1.25" male plugs $30  

The above is for all binoviewers with 1.25" or 2" cap applications.

 

Baader T - 2 Male or Female Caps $15 each

Baader Binoviewer Cap set T - 2 Female and 2 Male 1.25" eyepiece plugs $40

The above are for Baader diagonals and binoviewers

 

Camera T thread Male or Female Caps $15 each

The above is for all camera T - thread applications both male and female.

SCT male end cap $15 each

The above is for Celestron SCT diagonals

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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,

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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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