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11am - 11pm EST 
Monday - Friday

1pm-11pm Sat

Tel:

Cell:

919 553-3980  Primary
After 4 rings will ring through to Personal below.

 919-614-4297 personal

FAX:

919 553-3980 Call first then fax

eMail:

harrysiebert@nc.rr.com Q&A

hs3980@nc.rr.com  Request PayPal invioce

Thank you for visiting Siebert Optics!

200 Short Johnson Road
Clayton, NC 
USA  27520

 

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About Siebert Optics

Contact Information

 

 

_______________________________

 

         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 

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

     

 

 

 

 

 

 

The Black Night Binoviewer Series.

 Premium 25mm Prism Large Clear Aperture Black Night Super FMC  $649. <<<How they compare Video! More instruction links below. 

Self Centering Dioptors Instruction Videos Click Here. 

Videos 1 - 2 - 3 <These are for those who want to save these videos for off line use. Just Right Click and choose (save link as) to download and save.

When the Clear aperture is large it needs to be well Baffle to avoid off Axis reflections. If you see them in your bino baffling is lacking. 

Binoviewer and Eyepiece Instructions.rtf

 (See 2" 45mm Elite binoviewer page)   (See 40mm  Echelon binoviewer page

Ask About the Advanced Maxlight OCA's for Your Binoviewers

Whether you have a Dob, Refractor or SCT this is the binoviewer for you. As you will see below nothing even comes close for this price.

New packages below.  The most advanced packages start in package #2 and get less expensive as you go down  --Questions just email. harrysiebert@nc.rr.com or just call (919 553 3980)

Full instructions Diopter adjusters.

Fully Dielectric and Self Centering Double Diopters.

BN25 Binoviewer. See packaged below.

Which eyepieces will you will use is now up to you. Panoptic 24mm's, Siebert Ultra 24mm's or 32mm/40mm Plossls, the sky is the limit. You are not limited to eyepieces in the 20 mm range. In fact you can use the same eyepieces as TV and Baader and not worry about vignette. Want more information on this just call or email. More info below.

Add $69 For T-2 Free floating quick connect for T-2 low profile diagonals.

Fully Dielectric and Self Centering Double Diopters.

 

Here in a nutshell.

Acronyms defined: OP=Optical Path, CA=Clear Aperture, FIA=Fully Illuminated Area

These binoviewers are equal to or lighter then any other binoviewers on the market, They have more aperture then any binoviewer costing under $900, This means you can use any eyepieces you wish just like any other large prism binoviewer without the annoying vignette you get with binoviewer of small prism size. They have a OP/CA ratio that gives them the same FIA as the largest prism binoviewers on the market costing 3x plus.

Siebert Optics Clear Aperture Analysis page Click Here. 

 This is true in any scope with an optical system from f4 - f10. In fact there is only 2 Prism based binoviewers that will give you ANY diameter of FIA spot in an f4.5 system is (This is not using and Optical Corrector in the system) and they are Baader 28mm and the new BN 25mm dielectric.  Want Proof Click here.

             View Black Night Binoviewer Feedback        Leave Black Night Binoviewer Feedback

If you have a question as to what setup best suits your needs just call.

919-553-3980. Harrysiebert@nc.rr.com

 

 

Look below

 

 

 

 

 

Youtube videos below to explain the Self Centering Diopters. Watch both please.

Video  #1 ---Diopters INSTRUCTIONS A

Video  #2 ---Diopters INSTRUCTIONS B

 

 

 

 

 

 

 

 

   The most advanced packages start in package #1 and 2 and get less expensive as you go down  --Questions just email. harrysiebert@nc.rr.com or just call (919 553 3980)

 

 

$649 (bnbinos#0)

When only Binoviewer purchased.

All Bn25 will be between 24mm - 25mm in all CA. Binoviewer Prisms are 25mm.

 As part of  most packages. $599

  • Package #1

  • Black Night binoviewers with
  • Dielectric coatings
  • With Self Centering Diopter adjusters.
  • Max Light 2" 2pc 1.0x(refactors) "or" 1.3x OCA (refractors and Dobs).
  • Set of Ultra 19mm's (70 deg. fov; 20mm's ER)      OR
  • Or substitute a set of 24mm's (65 deg. fov; 20mm's ER)
  • Add  $100 for 38mm (x1 or 1.3x OCA)

    (bnbinos#1)-dob/ref-L

$1049 (bnbinos#1)-dob/ref

$1149 (bnbinos#1)-dob/ref-L

38mm CA 1.3x OCA

 

 

Package can be used with Newtonians, Refractors and Dobs

Package #2

  • Black Night binoviewers with
  • Dielectric coatings
  • With Self Centering Diopter adjusters.
  • Max Light 2" 2pc 1.0x -1.5x -2.0x "OR" x1.3x -2.0x -2.7x for refractors and Dobs.
  • Set of Ultra 19mm's (70 deg. fov; 20mm's ER)      OR
  • substitute a set of 24mm's (65 deg. fov; 20mm's ER)

   $1128(bnbinos#2)-dob/ref

$1278(bnbinos#2)-dob/ref-L 

38mm CA 1.3x OCAMulti

 

Package can be used with Newtonians, Refractors and Dobs

Package #3

  • Black Night binoviewers with
  • Dielectric coatings
  • With Self Centering Diopter adjusters.
  • 1.25x Multi Mag OCA    or Advanced Max Light 1.8x OCA
  • set of Ultra 19mm's (70 deg. fov; 20mm's ER)      OR
  • substitute set of 24mm's (65 deg. fov; 20mm's ER)

   $949(bnbinos#3)-dob/ref

Package can be used with Newtonians, Refractors and Dobs

Package #4

  • Black Night binoviewers with
  • Dielectric coatings
  • With Self Centering Diopter adjusters.
  • 1.25x 1.25" OCA   or   x2 OCA
  • set of Ultra 19mm's (70 deg. fov; 20mm's ER)      OR
  • substitute set of 24mm's (65 deg. fov; 20mm's ER)

  

$938 (bnbinos#4)-dob/ref

 

 

Package can be used  with SCT's Newtonians, Refractors and Dobs

Package #5

  • Black Night binoviewers with
  • Dielectric coatings
  • With Self Centering Diopter adjusters.
  • 1.25x 1.25" Multi Mag OCA    or Advanced Max Light 1.8x OCA
  •  Or Max Light 2" 2pc 1.0x (refractors) "or" 1.3x OCA (refractors and Dobs).Add $99
  • 20mm's Standard performance  WA 65 deg fov and 18mm ER.

  

$849 (bnbinos#5)-dob/ref

 

Package can be used  with SCT's Newtonians, Refractors and Dobs

Package #6

  

$877 (bnbinos#6)-dob/ref

 

 

 

Package can be used  with SCT's Newtonians, Refractors and Dobs

Package #7 SCT

  • Black Night binoviewers with
  • Dielectric coatings
  • With Self Centering Diopter adjusters.
  • 3 in 1 Multi Mag (0.7x-x2-x3)
  • Set of Ultra 19mm's (70 deg. fov; 20mm's ER) Or substitute set of 24mm's (65 deg. fov; 20mm's ER)
  • Or Standard performance 20mm's WA 65 deg FOV and 18mm ER. Minus -$89

  

$968 (bnbinos#7-SCT)

 

 

 

Package for use with SCT's only

Package #8 SCT

  • Black Night binoviewers with
  • Dielectric coatings
  • With Self Centering Diopter adjusters.
  • 0.7x OCA   or   x2 Magnifier
  • set of Ultra 19mm's (70 deg. fov; 20mm's ER)      OR
  • substitute set of 24mm's (65 deg. fov; 20mm's ER)
  • Or Standard performance 20mm's WA 65 deg FOV and 18mm ER. Minus -$89

  

$918 (bnbinos#8-SCT)

Package for use with SCT's only

Package #9 SCT

  • Black Night binoviewers with
  • Dielectric coatings
  • With Self Centering Diopter adjusters.
  • set of Ultra 19mm's (70 deg. fov; 20mm's ER)      OR
  • substitute set of 24mm's (65 deg. fov; 20mm's ER)
  • Or Standard performance 20mm's WA 65 deg FOV and 18mm ER. Minus -$89

  

$828 (bnbinos#9-SCT)

 

Package for use with SCT's only

Package #10 SCT/Dob/Ref

  • Black Night binoviewers with
  • Dielectric coatings
  • With Self Centering Diopter adjusters.
  • Choose your OCA-SCT or (D)ob/(R)ef
  • 1.8x Maxlight OCA D/R
  • 1.25x / x2 / 3.5x MM D/R
  • minus $20 for 1.25x OCA Dos/Ref
  • 3 in 1 Multi (0.7x-x2-x3) SCT
  • Specify OCA Please.

 

  

$798 (bnbinos#10

 

Package #11 SCT

  

$749 (bnbinos#11-SCT)

 

 

 

 

  

 

Package for use with SCT's only

SCT Corrector section 

SCT Correctors

Super low profile 4 power multi mag 0.7x, 1x, 2x and 3x

1.25" 4 power model, $149 (OCAmultiSCT4)

2"  4 power model, $249 (OCA2multiSCT4)

================================

  • 1.25" 2x Super low profile corrector for SCT's, $139    

  • 1.25" 3x Super low profile corrector for SCT's,    $139   

  • 1.25" 4x Super low profile corrector for SCT's,    $139   

Focal Length Reducers

  • .7x for SCT's (Barlow Type) - $139 

  • 0.7x for SCT (Low Profile - Filter Cell Type - $119

  •  

 

OCA's (Optical Correctors)

Ultra transmission and performance. Advanced Max Light OCA's

Standard and Large 38mm CA for fast telescopes.

  • 2" 2pc 1.0x OCA (for refractors) - $249 Refractors with 2" Diagonals and focusers

  • 2" 2pc 1.3x , 2x and 2.7x OCA (for refractors newts & dobs) - $349  For Dobs , Newts and refractors with 2" Diagonals and focusers

  • 2" 2pc 1.0x , 1.5x and 2.0x OCA (for refractors newts & dobs) - $349  For Dobs , Newts and refractors with 2" Diagonals and focusers

  •  

 

Low profile section. Advanced Max Light OCA's Compact setups are all 2" diagonal friendly.

Simple Refractor & Reflector Plug and Play Correctors 

  • 1.25" 2.0x OC, $139

  • 1.25" 2.5x OC, $139

  • 1.25" 3.5x OC, $139

  • 1.25" 4.5x OC, $139

 

Recommend Eyepieces

  • 18mm Performance WA, $149 set (Reg. $79 each)

  • 24mm Ultra Plus SWA, $198 set (Reg. $129 each)

  • 13mm Ultra SWA, $278 set (reg. $139 each)

  • 15mm Ultra SWA, $278 set (reg. $139 each)

 

Accessory Cases

  • Small Accessory Case w/pluck foam (9"x 6.5"x 3.25"), $19 (SmCase)

  • Medium Accessory Case w/pluck foam(12.75"x 9.25 x 4.25"), $29 (MCase)

  • Large Accessory Case w/pluck foam (16.75"x12"x4.25"), $39 (LgCase)

Centering Diopter Adjusters

  •  Double diopters to our self-centering eyepiece holders  for the Black Night Bino 

  • $149-Value Free with Binoviewers 

  •  

  • 2 year against defects.

 

 

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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