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Questar

Questar is a precision optics manufacturer based in New Hope, Pennsylvania producing top quality telescopes for over 60 years.  Best known for their Maksutov-Cassegrain, Questar brings an elevated design aesthetic to the astronomy world, producing instruments that look as good as they perform.
  • Original price $50.00 - Original price $50.00
    Original price
    $50.00
    $50.00 - $50.00
    Current price $50.00

    Questar T-Ring for Nikon 35mm Camera, for Questar Telescopes Only

    Questar
    More on the way

    For mounting Nikon 35mm cameras on a Questar camera adapter only . . . Accessory to attach a Nikon 35mm or DSLR camera body to Questar camera adapt...

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    Original price $50.00 - Original price $50.00
    Original price
    $50.00
    $50.00 - $50.00
    Current price $50.00
  • Original price $75.00 - Original price $75.00
    Original price
    $75.00
    $75.00 - $75.00
    Current price $75.00

    Questar 1.25" Slip-Fit Adapter to Use a 45° Image Erector on a Questar

    Questar
    More on the way

    This Questar slip-fit adapter lets you use a 1.25" image erecting diagonal with a Questar 3.5" telescope or spotting scope.This Questar 1.25" slip-...

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    Original price $75.00 - Original price $75.00
    Original price
    $75.00
    $75.00 - $75.00
    Current price $75.00
  • Original price $275.00 - Original price $275.00
    Original price
    $275.00
    $275.00 - $275.00
    Current price $275.00

    Questar 3.5" Camera Coupling Set, Needs Questar T-ring

    Questar
    More on the way

    This Questar 3.5" camera coupling set consists of a swivel coupling and three adapter tubes in various lengths that stack together in various combi...

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    Original price $275.00 - Original price $275.00
    Original price
    $275.00
    $275.00 - $275.00
    Current price $275.00
  • Original price $1,925.00 - Original price $1,925.00
    Original price
    $1,925.00
    $1,925.00 - $1,925.00
    Current price $1,925.00

    Questar Astro Pier for 3.5" Questar Maksutovs

    Questar
    More on the way

    The Questar Astropier is a very stable and rigid portable pier that holds the 3.5" Questar eyepiece at a 57" working height for comfortable standin...

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    Original price $1,925.00 - Original price $1,925.00
    Original price
    $1,925.00
    $1,925.00 - $1,925.00
    Current price $1,925.00
  • Original price $80.00 - Original price $80.00
    Original price
    $80.00
    $80.00 - $80.00
    Current price $80.00

    Questar T-Ring for Canon EOS 35mm Camera, for Questar Telescopes Only

    Questar
    More on the way

    For mounting Canon EOS 35mm auto-focus cameras on a Questar camera adapter only . . . Accessory to attach a Canon EOS 35mm auto-focus camera body t...

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    Original price $80.00 - Original price $80.00
    Original price
    $80.00
    $80.00 - $80.00
    Current price $80.00
  • Original price $135.00 - Original price $135.00
    Original price
    $135.00
    $135.00 - $135.00
    Current price $135.00

    Questar Leveling Feet for Tri-Stand Short Pier and 3.5" Astro Pier (Set of 3)

    Questar
    Sold Out

    The Questar #19335 set consists of three leveling feet that thread into the legs of a 3.5" Questar Tri-Stand or Astropier. By threading the feet up...

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    Original price $135.00 - Original price $135.00
    Original price
    $135.00
    $135.00 - $135.00
    Current price $135.00
    Sold out
  • Original price $165.00 - Original price $165.00
    Original price
    $165.00
    $165.00 - $165.00
    Current price $165.00

    Questar Wraparound Tube Counterweight for 3.5" Questars

    Questar
    More on the way

    This Questar #19370 counterweight for fork-mounted Questar 3.5" telescopes consists of a one pound lead-impregnated soft vinyl weight that wraps ar...

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    Original price $165.00 - Original price $165.00
    Original price
    $165.00
    $165.00 - $165.00
    Current price $165.00
  • Original price $300.00 - Original price $300.00
    Original price
    $300.00
    $300.00 - $300.00
    Current price $300.00

    Questar 32mm Brandon Eyepiece

    Questar
    More on the way

    This is an excellent low power eyepiece for capturing galaxy pairs and compact galaxy clusters, viewing emission and reflection nebulas and smaller...

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    Original price $300.00 - Original price $300.00
    Original price
    $300.00
    $300.00 - $300.00
    Current price $300.00
  • Original price $725.00 - Original price $725.00
    Original price
    $725.00
    $725.00 - $725.00
    Current price $725.00

    Questar 3.5" Full Aperture Solar Filter for 3.5" Scopes

    Questar
    More on the way

    This Questar full aperture white light glass solar filter lets you safely observe fine detail on the surface of the Sun - sunspots, granulation, et...

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    Original price $725.00 - Original price $725.00
    Original price
    $725.00
    $725.00 - $725.00
    Current price $725.00
  • Original price $1,725.00 - Original price $1,725.00
    Original price
    $1,725.00
    $1,725.00 - $1,725.00
    Current price $1,725.00

    Questar Tri-Stand Short Pier for Seated Viewing with 3.5" Questar

    Questar
    More on the way

    The Questar Tri-Stand Short Pier is a very stable and rigid portable pier that holds your 3.5" Questar telescope eyepiece at an approximately 41" w...

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    Original price $1,725.00 - Original price $1,725.00
    Original price
    $1,725.00
    $1,725.00 - $1,725.00
    Current price $1,725.00
  • Original price $75.00 - Original price $75.00
    Original price
    $75.00
    $75.00 - $75.00
    Current price $75.00

    Questar T-Ring to Use 1"-32 Thread C-Mount Video and 16mm Film Cameras on Questar Telescopes

    Questar
    More on the way

    For mounting 1"-32 thread C-mount video and 16mm film cameras on a Questar camera adapter only . . . This T-ring accessory lets you mount a 1"-32 t...

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    Original price $75.00 - Original price $75.00
    Original price
    $75.00
    $75.00 - $75.00
    Current price $75.00
  • Original price $300.00 - Original price $300.00
    Original price
    $300.00
    $300.00 - $300.00
    Current price $300.00

    Questar 8mm Brandon Eyepiece

    Questar
    More on the way

    This is an excellent high power eyepiece for observing lunar and planetary detail, resolving globular clusters, picking up small planetary nebulas ...

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    Original price $300.00 - Original price $300.00
    Original price
    $300.00
    $300.00 - $300.00
    Current price $300.00
  • Original price $5,595.00 - Original price $5,595.00
    Original price
    $5,595.00
    $5,595.00 - $5,595.00
    Current price $5,595.00

    Questar 3.5" Telescope Standard, Magnesium Fluoride Coatings

    Questar
    More on the way

    Optical theory says that a Questar should not be able to resolve lunar craterlets and rilles under 1.3 arc seconds across - yet there are countless...

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    Original price $5,595.00 - Original price $5,595.00
    Original price
    $5,595.00
    $5,595.00 - $5,595.00
    Current price $5,595.00
  • Original price $300.00 - Original price $300.00
    Original price
    $300.00
    $300.00 - $300.00
    Current price $300.00

    Questar 16mm Brandon Eyepiece

    Questar
    More on the way

    This is an excellent medium power eyepiece for lunar observing, resolving globular clusters, picking up details in the more compact emission and re...

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    Original price $300.00 - Original price $300.00
    Original price
    $300.00
    $300.00 - $300.00
    Current price $300.00
  • Original price $350.00 - Original price $350.00
    Original price
    $350.00
    $350.00 - $350.00
    Current price $350.00

    Questar 7" Camera Coupling Set, Needs Questar T-Ring

    Questar
    More on the way

    This Questar 7" camera coupling set consists of a swivel coupling and three adapter tubes that stack together for prime focus, eyepiece projection,...

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    Original price $350.00 - Original price $350.00
    Original price
    $350.00
    $350.00 - $350.00
    Current price $350.00
  • Original price $300.00 - Original price $300.00
    Original price
    $300.00
    $300.00 - $300.00
    Current price $300.00

    Questar 24mm Brandon Eyepiece

    Questar
    More on the way

    This is an excellent medium to low power eyepiece (53x and 80x in the 3.5" Questar) for lunar observing, resolving globular clusters, viewing the m...

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    Original price $300.00 - Original price $300.00
    Original price
    $300.00
    $300.00 - $300.00
    Current price $300.00
  • Original price $80.00 - Original price $80.00
    Original price
    $80.00
    $80.00 - $80.00
    Current price $80.00

    Questar T-Ring For Olympus 4/3 Format DSLR Cameras, For Questar Telescopes Only

    Questar
    More on the way

    For mounting Olympus 4/3 format DSLR cameras on a Questar camera adapter only . . . Accessory to attach an Olympus 4/3 format DSLR camera body to t...

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    Original price $80.00 - Original price $80.00
    Original price
    $80.00
    $80.00 - $80.00
    Current price $80.00
  • 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...

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    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 $7,424.00 - Original price $7,424.00
    Original price
    $7,424.00
    $7,424.00 - $7,424.00
    Current price $7,424.00

    Questar 3.5" Telescope Duplex, Broadband coatings, Zerodur Mirror, Factory Installed Powerguide III

    Questar
    More on the way

    For the serious amateur astronomer who would like to take Questar quality into the field for nature studies and photography in all climate extremes...

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    Original price $7,424.00 - Original price $7,424.00
    Original price
    $7,424.00
    $7,424.00 - $7,424.00
    Current price $7,424.00
  • Original price $7,024.00 - Original price $7,024.00
    Original price
    $7,024.00
    $7,024.00 - $7,024.00
    Current price $7,024.00

    Questar 3.5" Telescope Duplex, Broadband Coatings, Factory Installed Powerguide III

    Questar
    More on the way

    For the serious amateur astronomer who would like to take Questar quality into the field for nature studies and photography, as well as for unsurpa...

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    Original price $7,024.00 - Original price $7,024.00
    Original price
    $7,024.00
    $7,024.00 - $7,024.00
    Current price $7,024.00
  • Original price $6,624.00 - Original price $6,624.00
    Original price
    $6,624.00
    $6,624.00 - $6,624.00
    Current price $6,624.00

    Questar 3.5" Telescope Duplex, Magnesium Fluoride Coatings, Factory Installed Powerguide III

    Questar
    More on the way

    For the serious amateur astronomer who would like to take Questar quality into the field for nature studies and photography, as well as for unsurpa...

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    Original price $6,624.00 - Original price $6,624.00
    Original price
    $6,624.00
    $6,624.00 - $6,624.00
    Current price $6,624.00
  • Original price $245.00 - Original price $245.00
    Original price
    $245.00
    $245.00 - $245.00
    Current price $245.00

    Questar Dew Cap for 3.5" Standard (Replacement)

    Questar
    More on the way

    The Questar #13091 dewcap is a replacement for a lost or damaged 3.5" standard Questar dewcap. This special order Questar #13091 dewcap with wrap-a...

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    Original price $245.00 - Original price $245.00
    Original price
    $245.00
    $245.00 - $245.00
    Current price $245.00
  • Original price $300.00 - Original price $300.00
    Original price
    $300.00
    $300.00 - $300.00
    Current price $300.00

    Questar 12mm Brandon Eyepiece

    Questar
    More on the way

    This is an excellent medium high to high power eyepiece (108x and 162x in the 3.5" Questar) for observing lunar and planetary detail, resolving glo...

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    Original price $300.00 - Original price $300.00
    Original price
    $300.00
    $300.00 - $300.00
    Current price $300.00
  • Original price $795.00 - Original price $795.00
    Original price
    $795.00
    $795.00 - $795.00
    Current price $795.00

    Questar Leather Carrying Case for 3.5" Questars

    Questar
    More on the way

    This is a 15.5" x 9" x 8.5" genuine leather carrying case for 3.5" Questar Standard or Duplex telescopes. The case is made in the USA of wood, cove...

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    Original price $795.00 - Original price $795.00
    Original price
    $795.00
    $795.00 - $795.00
    Current price $795.00

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