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Diagonals

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  1. Orion - 1.25" Deluxe 45-degree Correct-Image Prism Diagonal*

    Orion - 1.25" Deluxe 45-degree Correct-Image Prism Diagonal*

    Turn any refractor or Cassegrain telescope into a high-performance daytime spotting scope with our Deluxe 45° Correct-Image Diagonal.   

    ...
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    Model#: 08754
    Sale lasts until Feb 12, 2015!

    Regular Price: $82.99

    Special Price: $67.49

  2. Astro-Tech - 1.25" Dielectric Coated Star Diagonal with Compression Ring

    Astro-Tech - 1.25" Dielectric Coated Star Diagonal with Compression Ring

    This 1.25” Astro-Tech first-surface mirror star diagonal was named a Sky & Telescope Hot Product for 2007!

    ...
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    Model#: AT1D
    $69.95

  3. Lunt  -  Calcium Module (Ca-K) with B1200 Blocking Filter  -  in Straight Thru 2" Tube with T2 & 2" connection

    Lunt - Calcium Module (Ca-K) with B1200 Blocking Filter - in Straight Thru 2" Tube with T2 & 2" connection

    Lunt Calcium K B1200 CAK Straight

    Calcium K (Ca-K) Telescopes and Filters are used to study the

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    Model#: LS1200CAKS
    $1,018.00

  4. Celestron Finderscope Only 8x20 Erect Image

    Celestron - Finderscope Only 8x20 Erect Image

    This 8x20 finderscope features an erect image.

    Finderscopes are secondary scopes, used to help locate objects in the main telescope. The larger the finderscope, the more you'll see, to an upper limit of 50mm.

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    Model#: 94103-A
    $49.00

  5. Denkmeier #S2 Dielectric Power x Switch Star Diagonal Shorty

    Denkmeier - #S2 Dielectric Power x Switch Star Diagonal - Shorty

    Diagonal #S2 For SCTsAllows Binoviewers to be used in SCTs for instant normal, reduction and multiplication factors ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: S2-99STY
    $509.00

  6. Denkmeier - #R1 Silver Enhanced Power x Switch Star Diagonal - Regular

    Denkmeier - #R1 Silver Enhanced Power x Switch Star Diagonal - Regular

    Diagonal #R1 For RefractorsAllows any Denkmeier Binoviewer to be loaded into the eyepiece receptacle for 3 magnifications with a single pair of eyepieces ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: R1-97REG
    $499.00

  7. Denkmeier - #R1 Silver Enhanced Power x Switch Star Diagonal - Shorty

    Denkmeier - #R1 Silver Enhanced Power x Switch Star Diagonal - Shorty

    Diagonal #R1 For RefractorsAllows any Denkmeier Binoviewer to be loaded into the eyepiece receptacle for 3 magnifications with a single pair of eyepieces ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: R1-97STY
    $499.00

  8. Denkmeier #R1 Dielectric Power x Switch Star Diagonal - Regular

    Denkmeier - #R1 Dielectric Power x Switch Star Diagonal - Regular

    Diagonal #R1 For RefractorsAllows any Denkmeier Binoviewer to be loaded into the eyepiece receptacle for 3 magnifications with a single pair of eyepieces ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: R1-99REG
    $619.00

  9. Denkmeier - #R1 Dielectric Power x Switch Star Diagonal - Shorty

    Denkmeier - #R1 Dielectric Power x Switch Star Diagonal - Shorty

    Diagonal #R1 For RefractorsAllows any Denkmeier Binoviewer to be loaded into the eyepiece receptacle for 3 magnifications with a single pair of eyepieces ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: R1-99STY
    $619.00

  10. Denkmeier - #R2 Silver Enhanced Power x Switch Star Diagonal - Regular

    Denkmeier - #R2 Silver Enhanced Power x Switch Star Diagonal - Regular

    The Denkmeier 2" Power x Switch Diagonal #R2 for Refractors#R2 provides tremendous versatility allowing a binoviewer to move through up to 6 different magnifications with a low 1.26X power factor to a high power of 3 ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: R2-97REG
    $599.00

  11. Denkmeier - #R2 Diekectric Power x Switch Star Diagonal - Regular

    Denkmeier - #R2 Diekectric Power x Switch Star Diagonal - Regular

    The Denkmeier 2" Power x Switch Diagonal #R2 for Refractors#R2 provides tremendous versatility allowing a binoviewer to move through up to 6 different magnifications with a low 1.26X power factor to a high power of 3

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    FREE SHIPPING
    (48 States)
    Model#: R2-99REG
    $719.00

  12. Lumicon - Adapter to use 2 " MFS on Enhanced/Lumibrite Diagonals for Refractors

    Lumicon - Adapter to use 2 " MFS on Enhanced/Lumibrite Diagonals for Refractors

    The Adapter for 2" MFS on Enhanced/LumiBrite Diagonals for Refractors is an ultra low-profile (0.54") eyepiece holder for the Lumicon 2" Enhanced Aluminum or 2" LumiBrite Dielectric diagonal ... Learn More
    Model#: LD1050
    $32.95

  13. Denkmeier #S2 Dielectric Power x Switch Star Diagonal Regular

    Denkmeier - #S2 Dielectric Power x Switch Star Diagonal - Regular

    Diagonal #S2 For SCTsAllows Binoviewers to be used in SCTs for instant normal, reduction and multiplication factors ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: S2-99REG
    $509.00

  14. Denkmeier - #S2 Silver Enhanced Power x Switch Star Diagonal - Shorty

    Denkmeier - #S2 Silver Enhanced Power x Switch Star Diagonal - Shorty

    Diagonal #S2 For SCTsAllows Binoviewers to be used in SCTs for instant normal, reduction and multiplication factors ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: S2-97STY
    $389.00

  15. Denkmeier - #S2 Silver Enhanced Power x Switch Star Diagonal - Regular

    Denkmeier - #S2 Silver Enhanced Power x Switch Star Diagonal - Regular

    Diagonal #S2 For SCTsAllows Binoviewers to be used in SCTs for instant normal, reduction and multiplication factors ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: S2-97REG
    $389.00

  16. Celestron - 45 Degree Diagonal, Erect Image - 1.25" *

    Celestron - 45 Degree Diagonal, Erect Image - 1.25" *

    Celestron's 1-1/4" Erect Image Diagonals are an Amici prism design. This design allows you to look into the telescope at a 45° angle, at images that are oriented properly, meaning the image is upright and correct from left to right.

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    Model#: 94112-A

    Regular Price: $39.95

    Special Price: $32.95

  17. Celestron - Diagonal, Star 1.25" *

    Celestron - Diagonal, Star 1.25" *

    Our Star Diagonal lets you view objects that are at a 90° angle from the direction the telescope is pointing, thereby allowing comfortable viewing when the telescope is pointed at, or near, the zenith (i.e. directly overhead). The resulting image is right side up, but will be reversed from left to right.

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    Model#: 94115-A

    Regular Price: $34.95

    Special Price: $32.95

  18. Celestron - 2" XLT Diagonal (SCT) *

    Celestron - 2" XLT Diagonal (SCT) *

    Introducing our new 2" XLT Diagonal. This high quality multi-coated mirror diagonal allows you to take advantage of the wider field of view provided by 2" eyepieces

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    Model#: 93527

    Regular Price: $149.95

    Special Price: $129.95

  19. Denkmeier - #S1 Dielectric Power x Switch Star Diagonal - Regular

    Denkmeier - #S1 Dielectric Power x Switch Star Diagonal - Regular

    Diagonal #S1 - For SCTs Using Single EyepiecesDesigned specifically for single eyepiece use (non-binoviewer) in an SCT and allows focal reduction, normal and 2X magnifications instantly ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: S1-99REG
    $509.00

  20. S1-99STY

    Denkmeier - #S1 Dielectric Power x Switch Star Diagonal - Shorty

    Diagonal #S1 - For SCTs Using Single EyepiecesDesigned specifically for single eyepiece use (non-binoviewer) in an SCT and allows focal reduction, normal and 2X magnifications instantly ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: S1-99STY
    $509.00

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