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:

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 $449-$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 $49 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

New Affordable Super Large aperture Dielectric binoviewers $999 

Click here for details.

http://www.siebertoptics.com/SiebertOptics-OCA.html

(Double Self Centering Diopters for BW, Denk and AP $199) Take a Look Here

Self Centering eyepiece holders for Burgess/Orion/other binoviewers Pair $49.

CNC runs both small and large. If you need CNC parts call/e-mail and see if we can help. Get a free quote.

Collimation/cleaning services for binoviewers: TV, AP ,$99-- Denk, BW and most other brands .

Professional Collimation/cleaning services for standard binoculars. $50 Advanced binoculars $100

Brass eyepieces And Barlows options for Brass telescopes. (See All ads)

  Astrotech and Williams Optics services. Starting at $49

Focuser Cleaning and repairs on the Astrotech and Williams Optics 66mm and 80mm refractors. If your refractor has Focuser problems Email me the nature of your problem and we will advise. A lot of problems with these focusers are no more then a cleaning, Lubrication and an a realignment.