Hours:

11am - 11pm EST 
Monday - Friday

1pm-11pm Sat 

 
Cell:

919-614-4297 Cell

eMail:

harrysiebert@nc.rr.com

Above is to send in orders and Q&A.

Below is My Paypal address

hs3980@nc.rr.com  

 


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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About Siebert Optics

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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

 

(Specialized Binoviewer services you can't get anywhere else)

 

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

     

 

 

 

 

 

Low Profile Image Correction Prisms for Newts and refractors straight though.

1.25" Prism

This is an extremely compact image correction prism that inserts into the bottom of any 1.25" eyepiece.  These screw directly into the bottom of your eyepiece where the filter would go.

 Very compact and disappears into your focuser.


 Works with eyepieces up to 25mm for
$50. (ICP125W)

  It has a 3/4" in-travel requirement without Barlow assistance. Some scopes may fall short of focus. So focus your eyepieces and measure for the 3/4" of focus needed.

 

                                                                 

Makes this into this 

The field of view begins to be restricted when used with eyepieces greater than 21mm.  It also eliminates the need for a barlow-like adapter to add to the eyepiece's height.  Since it attaches directly to the bottom of the eyepiece, it fits into your focuser or barlow without any additional lenses or focuser height.  Perfect for refractors (when used without the diagonal) and reflectors that need the image corrected both right to left and up-side-down to right-side-up.  A great alternative to the bulky, expensive erecting prisms on the market.  It adds 0" height to the lens that it is inserted into.  Used mainly for terrestrial use.

(These will not work with the Meade ETX telescope.)

 

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!.

We accept Visa, Mastercard,

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  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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