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SVBONY 2 inches 90 Deg Dielectric Mirror Diagonal for Astronomical Telescope ... For Sale


SVBONY 2 inches 90 Deg Dielectric Mirror Diagonal for Astronomical Telescope ...



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SVBONY 2 inches 90 Deg Dielectric Mirror Diagonal for Astronomical Telescope ...:
$79

SVBONY 2 inches 90 Deg Dielectric Mirror Diagonal for Astronomical Telescope with 1.25 inches Adapter Description

If you paid for high performance coatings for your telescope, why lose 8% of your light using a standard diagonal We list our dielectric coated diagonals at 99% reflectance, but this does not tell the complete story. While the reflectance is at a little more than 99% for the deep violet and reds, the reflectance for a the rest of the spectrum is essentially 100% Features: 100% Brand New and Never Used High glossy finish appearance Threads fit standard 1.25'' and 2'' filters Excellent Quality Dielectric Diagonal Provides a Comfortable 90 Degree View from your Refractor Fits Standard 2" (50.8 mm) Diameter Focus Tubes Can Use Both 50.8 mm and 31.75 mm Eyepieces Has a non- marring brass compression ring to secure your valuable eyepieces Material: Metal Color: Black Net Weight: 529g/18.67oz Package Includes: 1 x 2" 90-deg Dielectric Mirror Diagonal 1 x 1.25" Dust Cover 1 x 2" Dust Cover

Features:

  • Excellent Quality Dielectric Diagonal; Mirror Star Diagonal - 99% Reflectivity;Provides a Comfortable 90 Degree View from your Refractor; Fits Standard 2" (50.8 mm) Diameter Focus Tubes; Use Both 2" (50.8 mm) and 1.25" (31.75 mm) Eyepieces
  • New 2" 90 deg 99% Dielectric Mirror Diagonal for Telescope With 1.25" adapter; full metal;has a 1/10th wave flat optical glass surface;solid aluminum housing;threaded to accept standard 2" filters;The 2" eyepiece holder uses a non-marring brass compression ring to secure your valuable eyepieces. The 1.25" adapter also has a non-marring brass compression ring
  • Both sizes of eyepieces may be used and are protected from dings and scratches that would result from a standard set-screw. This 2" diagonal works with any Refractor that accepts a 2" star diagonals. It can also be used with Schmidt-Cassegrain or Maksutov-Cassegrain with an optional 2 inch visual back (See below)
  • Dielectric diagonal is especially important;A standard aluminized diagonal has about 92% reflectance;And this decreases with time as the aluminum mirror surface ages
  • For the vast majority of the visible spectrum;the reflectance does not vary more than about 0.1% below 100%;And the dielectric surface does not age like aluminum;This combination leads to the equivalent of a little more light grasp compared to standard diagonals

Product Details:

  • Product Dimensions: 1 x 1 x 2 inches
  • Item Weight: 1.35 pounds
  • Date First Available: April 23, 2019
  • Manufacturer: SVBONY

  • Shipping
    • Most orders will be shipped within 1 business days once we receive your payment. Except on weekend or public holidays.
    • A shipping notification will be emailed to you once your order has been shipped.
    • International shipping via Global Shipping Program.
    • No shipping to AK, HI, PR, APO/FPO, US Protectorates and PO Box.
  • Payment
    • We Accept Payment Via PayPal and All Major Credit Cards.
  • Return
    • We stand behind our products. Items can be returned for exchange or full refund within 30 days from the date you receive your merchandise.
    • Return shipping is the responsibility of buyer unless the return is a result of our mistake (i.e., your receive the wrong item). We will pay for shipping replacement back to you if an exchange of the same product is requested.
  • Contact us

    If you have any questions please contact us. We respond within 1 business day or less.


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