Results in Telescope Mirrors & Prisms

1-25 of 219

  • GSO 6" f/8 Parabolic Primary and 31mm Secondary Mirror Set for Telescope

    All mirrors have a reflective aluminum coating with a reflectivity of 92-93%. The aluminum coating is protected by a silicon oxide (SiO2) over-coating. GSO's elliptical flat mirrors have the same high quality as their parabolic primary mirrors.
    C $198.60
    Top Rated Seller
    16 watching
    From United States
    C $45.92 shipping
  • 16" f/4.5 Sandwich Parabolic Telescope Mirror

    Although the air condition was terrible due to middle of rainy season, optical performance was exactly as I expected! The surface of Jupiter was amazing. Contrast of color was deep and details were very sharp, image edge was knife cutting, even through hazy bad seeing.
    C $1,191.60
    From Hong Kong
    C $136.37 shipping
  • GSO Parabolic Primary Mirror - 6" f/8

    Users of these scopes know the excellent quality of the optics included, and they have a well-deserved reputation for being the finest mirrors in their price range. This very smooth mirror surface results in excellent optical performance with practically no light scatter.
    C $154.91
    Top Rated Seller
    23 watching
    From United States
    C $30.82 shipping
  • Meade 5000 2in Enhanced Diagonal Mirror with Adapter

    This item’s non-marring compression safety secures the eyepieces. The optics are made with Pyrex glass and comes with dielectric coatings for the most light transmission possible. This item has been interferometer-tested for excellent performance.
    C $172.05
    Top Rated Seller
    Only 1 left!
    From United States
    C $17.65 shipping
    Customs services and international tracking provided
  • 4.5" 114mm f/8 Long Tube Telescope Spherical Mirror with 1" Secondary F=900mm

    This is what you get:4.5" f/8 spherical mirror, focal length = 900mm, coated and ready to mount (holder is not included). 114mm 4.5" Long Tube Spherical Mirror with 1" Secondary - Great Value! NOTE: Spherical mirrors can be pulled into a parabolic curve by a method known as flexing.
    C $33.03
    Top Rated Seller
    9 watching
    From United States
    C $20.52 shipping
  • GSO 10" f/5 Parabolic Primary and 62.5mm Secondary Mirror Set for Telescope

    All mirrors have a reflective aluminum coating with a reflectivity of 92-93%. The aluminum coating is protected by a silicon oxide (SiO2) over-coating. GSO's elliptical flat mirrors have the same high quality as their parabolic primary mirrors.
    C $443.54
    Top Rated Seller
    25 watching
    From United States
    C $71.88 shipping
  • 17.5 inch f/4.5 Coulter Optical Parabolic Telescope Mirror

    It gives a good star test, a fine performer. Recently recoated with 96% enhanced aluminum by Optic Wave Labs.
    C $2,317.00
    From United States
    C $187.72 shipping
    Customs services and international tracking provided
    or Best Offer
  • GSO Elliptical Secondary Mirror - 88mm

    Users of these scopes know the excellent quality of the optics included, and they have a well-deserved reputation for being the finest mirrors in their price range. This very smooth mirror surface results in excellent optical performance with practically no light scatter.
    C $174.77
    Top Rated Seller
    C $19.50 shipping
    From United States
  • William Optics 2" 99% Dielectric Dura Bright Carbon Fiber Mirror Diagonal

    The William Optics Dura Bright 2" Dielectric Diagonal CF Plates features Ultra High Dielectric 99% reflectivity, precision 1/10 lambda surface with NEW (12mm thickness mirror) for best quality and 2"- 1.25" adapter with brass clamping ring.
    C $158.88
    From United States
    C $60.84 shipping
  • 2.5" Edmund Telescope Newtonian Mirror & Secondary - Great Value! Hard to Find!

    Aluminum first surface coated. Plate glass material, but in a mirror this small, Pyrex is not needed as cool down times are about 5 minutes typically. Secondary mirror of 1/2 minor axis" x 3/4" is also included at a great price!
    C $11.85
    Top Rated Seller
    C $12.58 shipping
    From United States
  • GSO Parabolic Primary Mirror - 8" f/6

    Users of these scopes know the excellent quality of the optics included, and they have a well-deserved reputation for being the finest mirrors in their price range. This very smooth mirror surface results in excellent optical performance with practically no light scatter.
    C $271.42
    Top Rated Seller
    C $55.98 shipping
    From United States
  • 6 Inch Primary Mirror

    Weighs 2 lb's. Need to Speak with the Owners?. They will personally make sure that your order is filled promptly and courteously. We are Never Undersold! We take the time to make sure that the scope you receive is the best instrument you can get.
    C $105.85
    From United States
    C $32.29 shipping
    Customs services and international tracking provided
    or Best Offer
  • GSO 12" f/5 Parabolic Primary and 70mm Secondary Mirror Set for Telescope

    All mirrors have a reflective aluminum coating with a reflectivity of 92-93%. The aluminum coating is protected by a silicon oxide (SiO2) over-coating. GSO's elliptical flat mirrors have the same high quality as their parabolic primary mirrors.
    C $781.16
    Top Rated Seller
    27 watching
    From United States
    C $93.46 shipping
  • 8 INCH TELESCOPE MIRROR BLANK Borosilicate ( Pyrex )

     I have a few 8 inch Borosilicate mirror blanks from a government lab. High quality and appear to be very flat and very parallel. They are 1 1/4 inch thick.
    C $131.08
    From United States
    Only 1 left!
    C $69.05 shipping
  • William Optics 1.25" 90-deg Erecting Prism Diagonal w/ Helical Focusing D-EP90-1

    The diagonal features a helical focusing mechanism for fine adjustment of up to 15 mm in the eyepiece holder. The inside of the erecting diagonal is matte blackened to reduce internal stray light reflection and keep image contrast high.
    C $94.00
    Top Rated Seller
    7 watching
    From United States
    C $19.50 shipping
  • 8 inch telescope alignment mirror in cell - military specs - optical flat

    We take the time to make sure that the scope you receive is the best instrument you can get. Two photos have been added to show this. We have two for sale individually. One is marked as "MIRROR, AZIMUTH ALIGNMENT SU-30/GJQ" and has several identifying numbers including serial numbers.
    C $655.38
    From United States
    C $48.78 shipping
    Customs services and international tracking provided
    20 watching
    or Best Offer
  • 10mm Non Polarizing Cube Beamsplitter

    Size: 10mm x 10mm x 10mm /- 0.1mm. Flatness: Lambda/2. Angle Tolerance: 3 Arc Mins. Coating to Entry & Exit Face is Multilayer layer to give R<0.5%_avg (450-650nm).
    C $123.11
    From United Kingdom
    Only 1 left!
    C $31.20 shipping
  • 114mm Parabolic Primary and 25mm Secondary Mirror Set for Telescope #Z952 ZY

    Parabolic Primary Mirror - 114mm. Elliptical Secondary Mirror - 25mm (minor axis diameter). This set contains the following products Rate (item arrived).
    C $105.63
    Top Rated Seller
    C $13.24 shipping
    From China
  • William Optics 1.25" 45 degree Erecting Prism Diagonal # D-EP125

    This high-quality, low-cost erecting prism will set the standard in erecting prisms! • Large, high-quality BAK4 erecting prism with anti-reflection coating allows for good contrasted and bright images.
    C $105.92
    Top Rated Seller
    C $19.50 shipping
    From United States
  • GSO Parabolic Primary Mirror - 10" f/5

    Users of these scopes know the excellent quality of the optics included, and they have a well-deserved reputation for being the finest mirrors in their price range. This very smooth mirror surface results in excellent optical performance with practically no light scatter.
    C $387.93
    Top Rated Seller
    C $78.05 shipping
    From United States
  • 37IN DIA BK7 OPTICAL FLAT AL MOUNT GLASS TELESCOPE MIRROR BLANK

    The flat is in perfect condition and of very high quality would make an excellent autocollimation flat. 37in Diameter, 5in thick BK7 with beveled and polished edge. Includes a solid machined aluminum cradle mount with back side adjustments.
    C $46,340.00
    From United States
    C $1,986.00 shipping
    18 watching
    or Best Offer
  • William Optics 2" 99% Dielectric Dura Bright Carbon Fiber Mirror Diagonal

    The plastic bag that the diagonal is wrapped in may have a small a tear or two. See the last two product photos above for representative box conditions. Dielectric coating allows 99% reflectivity. Introducing the New William Optics 2015 Dura-Bright diagonal - a dramatic step forward in the evolution of mirror diagonals!
    C $184.04
    Top Rated Seller
    C $19.50 shipping
    From United States
  • New ListingCelestron 1.25-inch Erect Image 45-Degree Diagonal Eyepiece, Model #94112-A NEW

    Accepts standard 1.25?.
    C $48.97
    From United States
    C $20.52 shipping
    or Best Offer
  • Celestron 2" XLT Diagonal Mirror (for SCT Telescope)

    The coating process uses state-of-the-art thin film vacuum deposition technology. To ensure consistent optical coatings of the highest quality the process is tightly monitored and controlled by highly trained coating technicians.
    C $178.67
    Top Rated Seller
    Was: Previous PriceC $264.73
    From United States
    9 watching
    Customs services and international tracking provided
    C $17.73 shipping
  • William Optics 2" 99% Dielectric Dura Bright Carbon Fiber Mirror SCT Diagonal

    The plastic bag that the diagonal is wrapped in may have a small a tear or two. See the last two product photos above for representative box conditions. Dielectric coating allows 99% reflectivity. Introducing the New William Optics 2015 Dura-Bright diagonal - a dramatic step forward in the evolution of mirror diagonals!
    C $209.19
    Top Rated Seller
    C $19.50 shipping
    From United States