Hours:

10am - 11pm EST 
Monday - Thursday

1pm-11pm Fri & Sat

Tel.:

Cell:

919 553 3980

919 614 4297

FAX:

919 553 3980

eMail:

hs3980@nc.rr.com

Thank you for visiting Siebert Optics!

200 Short Johnson Road
Clayton, NC 
USA  27520

 

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         Products:

 

Eyepieces  

 

Adapters - Meade Scopes and ETX

 

Barlow Lenses  

Binoculars - Quality Modified

 

 

Binoviewers & Accessories

Camera Focus Adaptors

Camera Adapters - Universal

Converters

Correction Prisms for Newts

 

Diagonals

Extension Tubes

 

Eyepieces  

Eyepiece Comparisons

Focal Length Reducers

H-Alpha Accessories

Miscellaneous

Observers Hood - light blocking 

Planetary Fleece Blanket 

 

 

Power Mag Wheel - binoviewers

Power Mag Wheel - Eyepieces

 

PST Accessories  

 

 

Telecentric Barlow Lenses

Refractor Knobs

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

 

 

 

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Here are some reviews that have been done on the Siebert Optics eyepieces showing their advanced optical design  Click here, here, here, here,   here and  here 

****All Siebert  5 element Orthos have 60+ deg FOV and 10mm ER*****

New Brass Orthos available >Click>

Shown here is the 4.9mm Siebert Modified Ortho with a 13mm eye lens. Compare to an HD 9mm Ortho with a 6mm eye lens that is lens 3.5x the lens area.. Hence the extra ER and FOV. These use a blend of Fully Coated and Multi Coated optics to maximize transmission. 

Siebert Optics Modified Orthos. Enhanced 5 element design. 

2.9mm, 3.4mm,  $119.    These excels from f/4 up to f/15 (Brass add $50)

3.9mm, 4.4mm, 4.9mm, 5.4mm, 5.9mm, 6.4mm, 6.9mm, 7.4mm, 7.9mm, $99. These excels from f/4 up to f/15 (Brass add $50)

8.9mm 9.9mm, $79.          These excels in scopes over F6 (Brass add $30)

 

 

 

 

 

 

 

Totally new design! It all comes together here. Razor sharp performance, eyerelief and 60+ deg FOV. Sharper and with higher contrast than anything you have tried.  

60 day money back guarantee.  

 

The only thing they have in common is sharpness and brightness. 

 

This is an Enhanced Orthoscopic design that blends the best of the Abbe Ortho design with additional advanced features like ER and Large FOV.

 

All eyepieces are  threaded for filters

 

 

                                                       

 

Click on picture to enlarge

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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!.

GIFT CERTIFICATES
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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