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Telescope Accessories

Here you will find a growing selection of accessories to outfit your telescope.  From accessory kits to visual backs, this is the place to find what you need.

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  • 1.25" Prism diagonal
    $43.95 - $43.95
    $43.95
    $43.95 - $43.95
    $43.95

    Celestron 1.25" Prism Diagonal

    Celestron
    In Stock

    A Star Diagonal lets you view objects that are at a 90° angle from the direction the telescope is pointing, thereby allowing comfortable viewing wh...

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    $43.95 - $43.95
    $43.95
    $43.95 - $43.95
    $43.95
  • 1.25" Everbrite 99% Reflectivity mirror diagonal
    $285.00 - $285.00
    $285.00
    $285.00 - $285.00
    $285.00

    TeleVue 1.25" Everbrite 99% Reflectivity Mirror Diagonal

    TeleVue
    In Stock

    This 90° 1.25" mirror-type star diagonal has Everbrite dielectric mirror coatings for 99% reflectivity. In addition to higher reflectivity than a c...

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    $285.00 - $285.00
    $285.00
    $285.00 - $285.00
    $285.00
  • 45° Prism for 1.25" eyepieces
    $51.95 - $51.95
    $51.95
    $51.95 - $51.95
    $51.95

    Celestron 45° Prism for 1.25" Eyepieces

    Celestron
    More on the way

    This 45-degree viewing angle image erecting diagonal is designed to use 1.25" eyepieces in catadioptric scopes with a 1.25" visual back or in refra...

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    $51.95 - $51.95
    $51.95
    $51.95 - $51.95
    $51.95
  • 1.25" Visual back / eyepiece holder
    $44.95 - $44.95
    $44.95
    $44.95 - $44.95
    $44.95

    Celestron 1.25" Visual Back / Eyepiece Holder

    Celestron
    In Stock

    This Celestron eyepiece holder/visual back threads on the 2" rear cell of all Celestron 5", 8", 9.25" and 11" Schmidt-Cassegrain telescopes to allo...

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    $44.95 - $44.95
    $44.95
    $44.95 - $44.95
    $44.95
  • Save $42.50 Save $0.00
    $170.00
    $170.00 - $170.00
    $170.00
    $127.50
    $127.50 - $127.50
    $127.50

    Takahashi 1.25” Prism Diagonal

    Takahashi
    More on the way

    This premium 1.25" Takahashi TAKSD1 compression ring prism star diagonal is the diagonal that Takahashi puts with all of their complete telescope s...

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    $170.00
    $170.00 - $170.00
    $170.00
    $127.50
    $127.50 - $127.50
    $127.50
    Save $42.50 Save $0.00
  • 1.25" Enhanced aluminum 96% reflectivity mirror diagonal
    $189.00 - $189.00
    $189.00
    $189.00 - $189.00
    $189.00

    TeleVue 1.25" Enhanced Aluminum 96% Reflectivity Mirror Diagonal

    TeleVue
    In Stock

    This 90° 1.25" mirror-type star diagonal uses enhanced aluminum mirror coatings for a full 95% reflectivity. The mirror is overcoated with quartz f...

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    $189.00 - $189.00
    $189.00
    $189.00 - $189.00
    $189.00
  • $322.00 - $322.00
    $322.00
    $322.00 - $322.00
    $322.00

    TeleVue 1.25" 99 Percent Reflectivity Everbite Mirror, 60 Degree Viewing

    TeleVue
    More on the way

    This unique 60° viewing angle 1.25" diagonal allows more comfortable extended viewing of objects near the ecliptic (the Moon and planets, among oth...

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    $322.00 - $322.00
    $322.00
    $322.00 - $322.00
    $322.00
  • $79.00 - $79.00
    $79.00
    $79.00 - $79.00
    $79.00

    iOptron Dielectic Star Diagonal

    iOptron
    More on the way

    Use the iOptron 90° Dielectric Star Diagonal to place your head in a comfortable viewing position when your refractor or catadioptric optical tube ...

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    $79.00 - $79.00
    $79.00
    $79.00 - $79.00
    $79.00
  • $395.00 - $395.00
    $395.00
    $395.00 - $395.00
    $395.00

    Questar 1.25" Mirror Diagonal for Brandon Eyepieces on a 3.5" Questar

    Questar
    More on the way

    The Questar #19107 is a mirror-type 90° viewing angle star diagonal for axial viewing with a 3.5" Questar telescope. It connects to the Cassegrain ...

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    $395.00 - $395.00
    $395.00
    $395.00 - $395.00
    $395.00
  • Questar 45°image erecting prism for Questar 3.5" scopes only
    $460.00 - $460.00
    $460.00
    $460.00 - $460.00
    $460.00

    Questar 45° Image Erecting Prism for Questar 3.5" Scopes Only

    Questar
    More on the way

    This premium Questar 45° viewing angle image erecting diagonal fits into the back of any Questar 3.5" scope to provide upright and correctly left-t...

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    $460.00 - $460.00
    $460.00
    $460.00 - $460.00
    $460.00

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