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

 

All New and All Aluminum. Kowa Highlander eyepieces Easy to look through and sharp image quality. Also the compression ring fit makes for easy in and out of the telescope. Many sold around the world. Kowa 32x82 F.I. 450mm F.L. If you have compatibility questions please ask. The prices below are for each eyepiece. 4.5mm(Kowa45)$299 60deg  10mmER 5.0mm(Kowa50)$299  60deg 10mmER 5.5mm(Kowa55)$299  60deg 10mmER 6.0mm(Kowa60)$299   60deg 17mmER 6.5mm(Kowa65)$299  60deg 17mmER 7.0mm(Kowa70)$299   60deg   17mmER 8.0mm(Kowa80)$299 60deg  15mmER 9.0mm(Kowa90)$299 60deg  17mmER 10mm(Kowa10)$299 60deg  17mmER 14mm(Kowa14)$299 60deg  17mmER 15mm(Kowa15)$299 60deg  15mmER 18mm(Kowa18)$299 65deg  18mmER 19mm(Kowa19)$299 65deg  19mmER 20mm(Kowa20)$299 60deg  20mmER 24mm(Kowa24)$299 55deg  24mmER

.   This series has been redesigned in 2016. It now uses Aluminum and Delrin construction.   We do complete alignment and Cleaning services for the Apogee / Miyauchi/ Kowa / BT and other Binoculars. Prices for cleaning and alignment starting at $99       Click here.   New and improved Oring compression fit. This is simialar to Miyauchi   <<<Click Here Focal length of your Binoculars below. Kowa 32x82 F.I. 450mm F.L.