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 .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 

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

About Siebert Optics.

Hi, my name is Harry Siebert, and  I have been an amateur astronomer for many years.   Like many, I cannot afford to spend a fortune on telescope accessories.  So through much study, research and experimentation, I have designed affordable telescope accessories for myself and others.  Siebert Optics strives to give the best quality at the most affordable prices for any astronomer, whether a newbie or advanced in the hobby.  Please feel free to ask any questions you may have either via email or phone at the above number.  Siebert Optics is a small company so feel free to ask for me specifically.

This Photo taken with a PST and a Black night binoviewer using a 19mm Ultra. Camera hand held. 

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Below taken with the 10" Dob, 1.5x Siebert Barlow and a SiebertOptics eyepiece.

The big red spot in Jupiter photographs can be seen just off the center to the left on the darkest red band.

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Photo below taken with ETX 90RA, 1.5x Siebert Barlow, And SiebertOptics eyepiece.