Skip to content
Trusted advice since 1979 Excellent 4.5 rating on Google Reviews Free Shipping On Orders Over $100

OTA

The optical tube is really the heart of your night time exploration.  Sizes range from 50mm to 20" in diameter as well as f/ratios from f/2.2 to f/15.  The optical designs range from simple doublet refractors to complex cassegrains with built-in field flatteners.  There is literally something for everyone here, you just have to decide what path you want to walk down.  We are always here to help with any questions you have.

Filters

$
$
  • $519.00 - $519.00
    $519.00
    $519.00 - $519.00
    $519.00

    Astro-Tech AT72EDII Refractor OTA FPL-53 and Lanthanum f/6 Doublet

    Astro-Tech
    In Stock

    The Astro-Tech AT72EDII takes the performance, and mechanics, of the "product everyone should own" (thank you Astronomy Magazine) and gives it an u...

    View full details
    $519.00 - $519.00
    $519.00
    $519.00 - $519.00
    $519.00
  • $419.00 - $419.00
    $419.00
    $419.00 - $419.00
    $419.00

    Astro-Tech AT60ED 60mm f/6 FPL-53ED and Lanthanum Doublet

    Astro-Tech
    In Stock

    This Astro-Tech ED refractor has: 60mm f/6 fully multicoated FPL-53 and Lanthanum doublet refractor optics dual-speed Rack and Pinion 2” focuser w...

    View full details
    $419.00 - $419.00
    $419.00
    $419.00 - $419.00
    $419.00
  • $329.00 - $329.00
    $329.00
    $329.00 - $329.00
    $329.00

    Astro-Tech AT70ED 2.8" f/6 ED Refractor OTA

    Astro-Tech
    In Stock

    This Astro-Tech AT70ED refractor has: 70mm f/6 fully multicoated doublet optics using FK-61 ED glass dual-speed 2" Rack and Pinion focuser 2" and ...

    View full details
    $329.00 - $329.00
    $329.00
    $329.00 - $329.00
    $329.00
  • Save $249.00 Save $0.00
    $849.00
    $849.00 - $849.00
    $849.00
    $600.00
    $600.00 - $600.00
    $600.00

    Astro-Tech AT60EDP 60mm f/5 Dual ED Petzval OTA

    Astro-Tech
    In Stock

    This unique Astro-Tech apochromatic ED petzval fast focal ratio refractor has an incredible flat field for your astro-photography endeavors.  This ...

    View full details
    $849.00
    $849.00 - $849.00
    $849.00
    $600.00
    $600.00 - $600.00
    $600.00
    Save $249.00 Save $0.00
  • $540.00 - $540.00
    $540.00
    $540.00 - $540.00
    $540.00

    Sky-Watcher Evostar 72mm f/5.8 ED Doublet Apochromatic Refractor

    Sky-Watcher
    In Stock

    The Evostar 72ED is a portable powerhouse. It is true that great things can come in a small package.. This Sky-Watcher Evostar 72ED apochromatic re...

    View full details
    $540.00 - $540.00
    $540.00
    $540.00 - $540.00
    $540.00
  • $335.00 - $335.00
    $335.00
    $335.00 - $335.00
    $335.00

    Sky-Watcher Evoguide 50DX APO Refractor/ Guidescope S11174

    Sky-Watcher
    In Stock

    Sky-Watcher EvoGuide 50DX 50mm ED APO Refractor / Guidescope The Sky-Watcher EvoGuide 50DX brings apochromatic performance to a compact, lightweigh...

    View full details
    $335.00 - $335.00
    $335.00
    $335.00 - $335.00
    $335.00
  • TV-60 60mm f/6 apo body
    $867.00 - $867.00
    $867.00
    $867.00 - $867.00
    $867.00

    TeleVue TV-60 60mm f/6 APO Refractor Body

    TeleVue
    More on the way

    This TeleVue TV-60 is a high performance 2.4" apochromatic doublet scope that will surprise you as much with the magnitude of its performance as it...

    View full details
    $867.00 - $867.00
    $867.00
    $867.00 - $867.00
    $867.00
  • FS-60CB 2.4" F/5.9 fluorite doublet apo
    $1,040.00 - $1,040.00
    $1,040.00
    $1,040.00 - $1,040.00
    $1,040.00

    Takahashi FS-60CB 2.4" f/5.9 Fluorite Doublet APO Refractor

    Takahashi
    More on the way

    This compact Takahashi refractor optical tube makes an ideal eclipse scope and a super travel and backyard scope for spur-of-the-moment observing. ...

    View full details
    $1,040.00 - $1,040.00
    $1,040.00
    $1,040.00 - $1,040.00
    $1,040.00

Compare products

0 of 3 items selected

Select first item to compare

Select second item to compare

Select third item to compare

Compare