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Explore Scientific 2" Dielectric-Coated Diagonal Mirror with 1.25" Adapter – DD02-00CF

Explore Scientific

Regular price
Price: $199.99 USD
Regular price
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Price: $199.99 USD
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The Explore Scientific 2" Dielectric-Coated Diagonal Mirror (DD02-00CF) is a premium optical accessory designed to enhance your telescope’s visual performance. This high-reflectivity diagonal mirror delivers bright, sharp images by reflecting up to 99% of incoming light, helping maintain the brightest possible view through your eyepiece. Its robust yet lightweight construction ensures both durability and ease of use in field or observatory settings.

Featuring a double-tapered 2-inch barrel, this diagonal is easy to insert and remove from standard telescope focusers while providing a secure, stable connection that resists accidental slips. The included 1.25" adapter and compression ring locks on both the 2" and 1.25" eyepiece holders keep your optics firmly in place without damaging barrels. Dust covers protect both ends of the diagonal when not in use.

This diagonal is ideal for refractor and reflector telescopes where upright and comfortable eyepiece viewing is needed, improving viewing comfort on all types of celestial targets — from lunar and planetary details to deep-sky objects.


Brand

Explore Scientific


Features

  • High-reflectivity 99% dielectric-coated mirror for maximum brightness and clarity

  • 2" barrel size supports wide-field eyepieces for expansive views

  • 1.25" adapter included for versatile eyepiece compatibility

  • Double-taper insert barrel for smooth, secure focuser engagement

  • Compression ring locks on both 2" and 1.25" holders to protect eyepiece barrels

  • Dust covers included to protect optics when not in use

  • Precision optical design for enhanced contrast and true-to-life views

  • Lightweight and rugged construction for frequent observing sessions


Specifications

Specification Details
Model/SKU DD02-00CF
Type 2" Dielectric-Coated Diagonal Mirror
Reflectivity 99% dielectric-coated mirror
Barrel Size 2" (50.8 mm)
Adapter 1.25" adapter included
Insert Barrel Double-taper design
Locks Compression ring locks on 2" and 1.25" holders
Weight Approx. 1.0 lb (0.45 kg)
Length Approx. 104.8 mm
Width Approx. 60.9 mm
Height Approx. 127.0 mm
Included Accessories Dust covers, 1.25" adapter

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.
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