• DayStar 2 inch dielectric coated mirror diagonal DS2MD high reflectivity 90 degree diagonal ideal for beginner astronomers providing sharp bright and color accurate high reflectivity dielectric coated mirror performance for comfortable ergonomic and fatigue free 90 degree telescope viewing of planets moon star clusters nebulae and deep sky objects through any standard 2 inch telescope focuser — Telescope Wolves
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Daystar

DayStar 2-Inch Dielectric Mirror Diagonal — High-Reflectivity 90° Star Diagonal for Refractors and Cassegrains

DayStar 2-Inch Dielectric Mirror Diagonal — High-Reflectivity 90° Star Diagonal for Refractors and Cassegrains

$159.00
$159.00
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A Premium 2" Star Diagonal for Refractors and Cassegrains — 99% Reflectivity Dielectric Coating

The DS2MD is a 2" 90° mirror diagonal (the angled piece that makes viewing more comfortable near the zenith) with a dielectric-coated mirror. Dielectric coatings reflect 99% of incoming light — significantly more than standard enhanced aluminium (88%) or silver (96–97%) coatings — giving noticeably brighter, higher-contrast views without changing your telescope's optics.

The 2" barrel accepts full-size 2" eyepieces for wide fields of view; a 2"–1.25" step-down adapter is included for 1.25" eyepieces. Both holders use brass compression rings that grip the eyepiece barrel without scratching it. The barrel and adapter are threaded for standard 2" filters. For refractors and Cassegrain-type telescopes only — not for Newtonian or Dobsonian reflectors.

Who This Is For

  • Refractor or SCT owners upgrading from a standard prism or aluminium diagonal
  • Anyone who wants noticeably better views without changing their telescope or eyepieces

What's Included

2" dielectric mirror diagonal, 2"–1.25" step-down adapter

Specifications
Barrel Size 2" (50.8mm)
Reflection Angle 90°
Mirror Coating Dielectric, 99% reflectivity (vs ~88% enhanced aluminum, ~96–97% silver)
Eyepiece Holder Brass compression ring (no scratching)
Filter Thread 2" standard
Compatible Telescopes Refractors, SCTs, Maksutovs (not for Newtonian / Dobsonian reflectors)
What's in the Box 2" dielectric mirror diagonal, 2"–1.25" step-down adapter with compression ring
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Frequently Asked Questions

With a beginner telescope you can see a surprising amount — the craters and mountains on the Moon, the rings of Saturn, the moons of Jupiter, and star clusters like the Pleiades. As you get more comfortable, you can also spot nebulae and distant galaxies. Not sure which beginner telescope is right for you? Check out our Telescope Buying Guide.
Most orders ship within 5 business days. You'll receive tracking information within 24 hours of your order leaving the warehouse. For full details, visit our Shipping Policy.
Orders cancelled after 48 hours are subject to a $20 administration fee. If your order has shipped, you are responsible for return shipping costs. Refunds are issued to the original payment method. See our full Refund Policy for details.
Yes! If you find a lower price at another authorized online retailer within 6 months of your purchase, we'll refund the difference. Learn more on our Price Match Guarantee page.
All telescopes on Telescope Wolves are hand-picked with beginners in mind. If you're unsure which telescope is right for you, check out our Telescope Buying Guide.
Please inspect your package on arrival and note any damage when signing for delivery. Send photos to info@telescopewolves.com and we'll process a claim on your behalf.
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