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Explore Scientific 99% Reflective 3-Inches Diagonal

Original price $589.99 - Original price $589.99
Original price
$589.99 - $589.99
Current price $589.99
In stock

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Explore Scientific 3" 99% Reflective Diagonal - DD03-01CF

Experience celestial clarity with the Explore Scientific 3-inch Dielectric-Coated Diagonal Mirror.

Complete with a 2-inch adapter and dust covers, this mirror, with solid yet lightweight construction, reflects 99% of light for the brightest telescope images.

Featuring a double-taper insert barrel, it smoothly fits into the focuser, preventing accidental dislodging even if the set screw loosens.

Eyepieces are securely held by compression ring locks on both the two-inch and 1.25-inch holders (sold separately).

Elevate your telescope's potential with this meticulously crafted diagonal mirror.


  • Dielectric-Coated Mirror: Explore Scientific's 99% Reflective 3-Inches Diagonal features a dielectric coating for optimal light reflection, ensuring brilliant and clear telescope images.
  • Comprehensive Package: Includes a 1.25-inch adapter, dust covers, and a Limited 1-year warranty, delivering a versatile and protective set of accessories for your peace of mind.
  • Solid Construction: Boasts a robust build for durability, balancing sturdiness with a lightweight design for ease of handling.
  • First Surface Coating: The first surface coated diagonal mirror reflects 99% of the light, maximizing image brightness and clarity during astronomical observations.
  • Double-Taper Insert Barrel: Designed with a double taper, facilitating smooth insertion or withdrawal from the focuser for convenient and secure use.
  • Secure Focuser Fit: The wide part of the taper prevents accidental dislodging from the focuser, ensuring stability even if the set screw loosens.
  • Compression Ring Locks: Eyepieces are firmly secured in the diagonal with compression ring locks on both the two-inch and 1.25-inch eyepiece holders (sold separately).
  • Versatile Compatibility: Compatible with both two-inch and 1.25-inch eyepieces, providing adaptability for various observational needs.


Item Number DD03–01CF
Weight 2.0lb; .90kg
Length 104.8mm
Width 60.9mm
Height 127.0mm
Warranty Limited 1 Year

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