Celestron Dielectric Star Diagonal with Twist-Lock (2-Inch)

Description

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Celestron Dielectric Star Diagonal with Twist-Lock (2-Inch)
Condition: Brand New in Original Packaging
SKU: 93573-CELESTRON
Features
Premium diagonal featuring diffraction-limited optics
Dielectric coatings
Provides a 90° viewing angle
58 Layers of dielectric coatings
Twist-lock cannot scratch or engrave the barrel of eyepieces
Twist-lock rings are orange anodized for visibility
Mechanical parts are made of machined black anodized aluminum
Interior of barrel is painted flat black to prevent glare
Twist-lock keeps the eyepiece centered in the diagonal
2 Interchangeable adapters for flexible connectivity
Product Description
Ensure maximum light transmission without loss of optical quality with the Celestron Dielectric Star Diagonal, 2-inch with Twist-Lock. Upgrade your existing star diagonal to this premium one and enjoy brighter, sharper images without replacing your telescope. This star diagonal reflects the telescope’s light path 90° to provide a more comfortable viewing angle. In addition, the glass has 58 layers of dielectric coatings, which provide an over 99% reflective surface, delivering the maximum amount of light to the eyepiece.
Twist-Lock Features
The twist-lock eyepiece holder secures any 2-inch eyepieces while keeping them centered in the diagonal, thus providing best opto-mechanical alignment between the telescope and eyepiece. Unlike traditional thumb screws, the twist-lock cannot scratch or engrave the barrel of your eyepieces. The twist-lock has an integrated 2-inch barrel stop that prevents 2-inch accessories with long barrels from damaging the mirror. All the diagonal’s mechanical parts are made of machined black anodized aluminum, except the twist lock rings, which are orange anodized for visibility. The interior of the barrel is glare threaded and painted flat black to prevent glare. With all its features and these high-end finishes, the Celestron Dielectric Star Diagonal, 2-inch with Twist-Lock is one of the highest quality 2-inch star diagonals that Celestron has ever offered.
Interchangeable Lens
This diagonal also comes with two interchangeable barrel adapter to provide flexibility in connecting the diagonal to a wide variety of telescopes without the need for additional adapters. For telescopes, like refractors, which accept 2” barrels in their focuser, a standard 2” barrel is included. For Schmidt-Cassegrains (SCTs) that use a threaded connection to the focuser, a barrel with SCT threads is included. Both barrels thread onto the diagonal housing, providing a secure connection to the diagonal.
Dielectric Star Diagonal Advantages
The key specifications for a star diagonal are its reflectivity and its optical quality. This diagonal delivers top performance in both categories, with an over 99% reflective mirror and diffraction-limited optical quality. This ensures that virtually all the light collected by the telescope will reach the eyepiece without the diagonal affecting optical performance. Using a lower quality star diagonal can both dim the view and degrade optical quality. You can enjoy better views from your telescope by simply swapping out its diagonal for a premium one, like the Celestron Dielectric Star Diagonal.
What's in the Box
Celestron Dielectric Star Diagonal with Twist-Lock (2-Inch)
2-inch to 1.25-inch Stepdown Adapter
SCT Adapter
Dust Cap
Specifications
Celestron Dielectric Star Diagonal with Twist-Lock (2-inch)
Diagonal size: 50.8mm (2-inch)
Diagonal type: Mirror
Glass material: BK7
Coatings: Dielectric, 58 layers
Reflectivity: Over 99%
Optical quality: Diffraction limited
Eyepiece holder: 2-inch, Twist-Lock
Compression ring: Yes, dual rings for 2-inch eyepiece holder and single ring for 1.25-inch stepdown adapter
Housing construction: Machined aluminum black anodized
Barrels:
2-inch barrel (for connection to 2-inch focusers)
SCT Adapter (for connection to SCTs)
Barrel interior: Glare threaded and painted flat black
Threads for filters: 2-inch filter threads
Dimensions: 152.4 x 76.2 x 101.6 mm (6 x 3 x 4-inch)
Weight (with stepdown adapter): 19 oz (538.6 g)
Shipping
Payment
Returns
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