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Monday - Friday

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919 553-3980



919 553-3980



Thank you for visiting Siebert Optics!

200 Short Johnson Road
Clayton, NC 
USA  27520


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About Siebert Optics

Contact Information







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



Special binoviewer services and products you cant get anywhere else 

ICP's Image Correction Prisms for Newts




Extension Tubes


Large refractor modular OTA's


Eyepiece Comparisons


Focal Length Reducers




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










Want to focus your PST or any other scope with your camera. Here is the solution.

These will work with any telescope but the PST is a worst case scenerio. Small tube length changes can be made to give extra out-focus travel in scopes other then the PST. Just  ask. 

All Scopes including PST Focus adaptors w/T-2 attachment.

Comes in three different*magnifications*****************

1.5x adds 20mm min focus  $149  (PST1.5x)

1.75x adds 40mm min focus  $149  (PST1.75x)

 2x adds  all you need  $149  (PST2x)

There are other correctors sold for the PST to focus your camera so if you don't see what you need here, give me a call or Email.
























































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!.

available in any dollar amount you wish to purchase.

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

We accept Visa, Mastercard,


  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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