iOptron 90° Dielectric Star Diagonal (1.25")

BH #IO6231 • MFR #6231
iOptron
iOptron 90° Dielectric Star Diagonal (1.25")
Key Features
  • Ideal for Refractor or Catadioptric OTAs
  • 1.25" Diameter Barrel
  • Dielectric-Coated BK-7 Glass Mirror
  • 99% Reflective Surface Mirror
Use the iOptron 90° Dielectric Star Diagonal to place your head in a comfortable viewing position when your refractor or catadioptric optical tube assembly (OTA) is aimed at or near the zenith. Built with a dielectric hard-coated BK-7 glass mirror, the diagonal transmits more than 99% of the incoming light to ensure clear and bright high-contrast images while maintaining maximum resolution.
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$79.00
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iOptron 6231 Overview

Use the iOptron 90° Dielectric Star Diagonal to place your head in a comfortable viewing position when your refractor or catadioptric optical tube assembly (OTA) is aimed at or near the zenith. Built with a dielectric hard-coated BK-7 glass mirror, the diagonal transmits more than 99% of the incoming light to ensure clear and bright high-contrast images while maintaining maximum resolution.

Designed to be lightweight and durable, the diagonal features an aluminum housing with a black anodized finish. The 1.25" barrel and eyepiece holder makes it compatible with the most popular size focusers, drawtubes, and accessories; and the brass compression ring in the eyepiece holder ensures your eyepieces won't get marked or marred when locked into place. An internal integrated safety stop in the eyepiece holder protects the mirror and ensures a long life.

UPC: 813578010674

iOptron 6231 Specs

Packaging Info
Package Weight0.675 lb
Box Dimensions (LxWxH)5.8 x 3.3 x 3.2"

iOptron 6231 Reviews

iOptron Diagonal

By Tim
Rated 4 out of 5
Date: 2022-03-29

The diagonal seems to work fine on my Celestron StarSense 102 and B&H did a great job. They did just as said and on time. For the price I would recommend the diagonal.

Great diagonal at a good price!

By Roderick
Rated 5 out of 5
Date: 2021-09-30

Got this to replace a broken TeleVue diagonal. The specs for the quality of the mirror are the same, and it works just as well as the TeleVue Diagonal at twice (or more) the price. I like the compression sleeve with the knob for the eyepiece--spreads the pressure evenly and snugly rather than having a single pressure-point. Works perfectly well with my Celestron C-5. Am impressed with iOptron products. Equipment: Celestron C-5 on an iOptron CEM26.

Solid diagonal

By Richard
Rated 4 out of 5
Date: 2020-07-14

Built well and does the job.

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