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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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Instructions for the H-Alpha OCA For All 1.25" Binoviewers

Pic 1

Install cell as seen in picture in any binoviewer.... Siebert, Stellarvue, Burgess, Denk, AP, TV, BW-Optics 

and the list goes on.

Pic 2

The lens cell will go in further depending on the type of unit it is

 installed on and the depth of the binoviewer nose piece.

Pic 3

Install second element marked #2 in the front of the blocking filter like in the picture. 

Plug it into the scope and you are ready to view. 

Pic 4

The TV and AP can also use the system. They require the nose piece shown here. 

The nose has standard filter threads and cost $40

Call or e-mail for more details.