Skip to content

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

$
$
  • Original price $1,500.00 - Original price $1,500.00
    Original price
    $1,500.00
    $1,500.00 - $1,500.00
    Current price $1,500.00

    Sky-Watcher Skymax 180 180mm f/15 Maksutov-Cassegrain Optical Tube S11540

    Sky-Watcher
    More on the way

    The Sky-Watcher 180mm Maksutov-Cassegrain folded optical system comes close in optical performance to the best-known ultra-premium 7" Maksutov, but...

    View full details
    Original price $1,500.00 - Original price $1,500.00
    Original price
    $1,500.00
    $1,500.00 - $1,500.00
    Current price $1,500.00
  • Original price $1,600.00 - Original price $1,600.00
    Original price
    $1,600.00
    $1,600.00 - $1,600.00
    Current price $1,600.00

    Celestron 7" Maksutov Cassegrain OTA

    Celestron
    In Stock

    The 7" Maksutov Cassegrain is a fantastic instrument just begging to get out under the stars and bring its high contrast optics to your eye. The 7"...

    View full details
    Original price $1,600.00 - Original price $1,600.00
    Original price
    $1,600.00
    $1,600.00 - $1,600.00
    Current price $1,600.00
  • Original price $14,695.00 - Original price $14,695.00
    Original price
    $14,695.00
    $14,695.00 - $14,695.00
    Current price $14,695.00

    Questar 7" Classic Titanium Maksutov-Cassegrain, Magnesium Fluoride AR and Silver Reflecting Coatings, Quartz Mirror

    Questar
    More on the way

    This Questar Seven Classic Titanium uses the same quartz mirror and coatings combination as the renowned 50th Anniversary 3.5" Questar, perhaps the...

    View full details
    Original price $14,695.00 - Original price $14,695.00
    Original price
    $14,695.00
    $14,695.00 - $14,695.00
    Current price $14,695.00
  • Original price $11,895.00 - Original price $11,895.00
    Original price
    $11,895.00
    $11,895.00 - $11,895.00
    Current price $11,895.00

    Questar 7" Astro Maksutov-Cassegrain

    Questar
    More on the way

    Observe through a Questar Seven Astro, and you'll see detail and clarity in the skies that you have never seen through a lesser scope, or even thro...

    View full details
    Original price $11,895.00 - Original price $11,895.00
    Original price
    $11,895.00
    $11,895.00 - $11,895.00
    Current price $11,895.00
  • Original price $12,795.00 - Original price $12,795.00
    Original price
    $12,795.00
    $12,795.00 - $12,795.00
    Current price $12,795.00

    Questar 7" Classic Titanium Maksutov-Cassegrain, Broadband Coatings

    Questar
    More on the way

    There are mere mortal telescopes and then there is the Questar Seven Classic Titanium with broadband coatings, which inhabits a higher plane of ast...

    View full details
    Original price $12,795.00 - Original price $12,795.00
    Original price
    $12,795.00
    $12,795.00 - $12,795.00
    Current price $12,795.00
  • Original price $5,510.00 - Original price $5,510.00
    Original price
    $5,510.00
    $5,510.00 - $5,510.00
    Current price $5,510.00

    Takahashi Epsilon E-180ED Astrograph

    Takahashi
    More on the way

    The Takahashi Epsilon E-180ED is fast imaging system for the most discerning user. The Epsilon series of astrographs are specifically designed for ...

    View full details
    Original price $5,510.00 - Original price $5,510.00
    Original price
    $5,510.00
    $5,510.00 - $5,510.00
    Current price $5,510.00
  • Original price $11,999.99 - Original price $11,999.99
    Original price
    $11,999.99
    $11,999.99 - $11,999.99
    Current price $11,999.99

    Explore Scientific 165mm f/7 FPL-53 Carbon Fiber APO Triplet Refractor With 3" Hex Focuser

    Explore Scientific
    Sold Out

    Enjoy serious observation with Explore Scientific's flagship telescope, the 165mm FPL-53 refractor. Reveal celestial wonders like the desolate beau...

    View full details
    Original price $11,999.99 - Original price $11,999.99
    Original price
    $11,999.99
    $11,999.99 - $11,999.99
    Current price $11,999.99
    Sold out

Compare products

0 of 3 items selected

Select first item to compare

Select second item to compare

Select third item to compare

Compare