--- product_id: 175832978 title: "Celestron 93573 Dielectric Star Diagonal 2\" with Twist Lock" brand: "celestron" price: "AR$1476866" currency: ARS in_stock: true category: "Celestron" url: https://www.desertcart.com.ar/products/175832978-celestron-93573-dielectric-star-diagonal-2-with-twist-lock store_origin: AR region: Argentina --- # 90Β° twist-lock viewing 99%+ reflectivity 58-layer dielectric coating Celestron 93573 Dielectric Star Diagonal 2" with Twist Lock **Brand:** celestron **Price:** AR$1476866 **Availability:** βœ… In Stock ## Summary > 🌟 Elevate your stargazing game with crystal-clear views and flawless alignment! ## Quick Answers - **What is this?** Celestron 93573 Dielectric Star Diagonal 2" with Twist Lock by celestron - **How much does it cost?** AR$1476866 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/175832978-celestron-93573-dielectric-star-diagonal-2-with-twist-lock) ## Best For - celestron enthusiasts ## Why This Product - Trusted celestron brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Engineered to Impress:** Machined anodized aluminum body with glare-reducing interior for durable, premium optics performance. - β€’ **Versatile Compatibility:** Includes stepdown adapter for seamless use with both 2” and 1.25” eyepieces and accessories. - β€’ **Comfort Meets Performance:** 90Β° viewing angle reduces neck strain, making long stargazing sessions a breeze. - β€’ **Effortless Precision Lock:** Twist-lock mechanism centers eyepieces perfectly, eliminating alignment issues and protecting your gear. - β€’ **Brilliant Clarity, Zero Compromise:** Over 99% reflectivity ensures maximum light transmission for stunningly bright, sharp views. ## Overview The Celestron 93573 Dielectric Star Diagonal 2” with Twist Lock is a premium telescope accessory designed to maximize light transmission with over 99% reflectivity via 58 layers of dielectric coatings. It offers a comfortable 90Β° viewing angle and a secure twist-lock eyepiece holder that prevents misalignment and damage. Compatible with both 2” and 1.25” eyepieces through an included stepdown adapter, this durable anodized aluminum diagonal enhances optical performance for refractor and Schmidt-Cassegrain telescopes, delivering brighter, sharper images for serious observers. ## Description Ensure maximum light transmission without loss of optical quality with the Celestron Dielectric Star Diagonal, 2” with Twist-Lock. Upgrade your existing star diagonal to this premium one and enjoy brighter, sharper images without purchasing an entirely new telescope. This star diagonal reflects the telescope’s light path 90Β° 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. This 2” star diagonal has the added benefit of allowing you to use larger 2” eyepieces with your telescope, providing a wider field of view, or standard 1. 25” eyepieces with the stepdown adapter. The twist-lock eyepiece holder secures 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 diagonal has an integrated 2” barrel stop that prevents 2” 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 Schmidt-Cassegrain adapter and 2” barrel are glare threaded and painted flat black to prevent glare. With all its features and these high-end finishes, the Celestron Dielectric Star Diagonal, 2” with Twist-Lock is one of the highest quality 2" star diagonals that Celestron has ever offered. This diagonal also comes with two interchangeable barrels 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-Cass grains (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. 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. ## Features - Enjoy better views through your telescope with this premium diagonal featuring diffraction-limited optics and dielectric coatings - Provides a 90Β° viewing angle, perfect for more comfortable viewing through refractor and cass grain-type telescopes - 58 layers of dielectric coatings provide an over 99% reflective surface, ensuring the maximum amount of light collected by the telescope reaches the eyepiece - Twist-lock keeps the eyepiece centered in the diagonal to provide better optical alignment - Includes a Stepdown adapter, so the diagonal accepts eyepieces, Barlow lenses, threaded filters, and other accessories in both 2” and 1. 25” sizes ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07VNHDHFL | | Best Sellers Rank | 550 in Telescope Accessories | | Brand | Celestron | | Colour | Black/Orange | | Customer Reviews | 4.6 4.6 out of 5 stars (232) | | Date First Available | 29 July 2019 | | Focus type | Manual Focus | | Guaranteed software updates until | unknown | | Included components | Diagonal | | Item model number | 93573 | | Package Dimensions L x W x H | 16.7 x 16.1 x 11.1 centimetres | | Package Weight | 0.75 Kilograms | | Part number | 93573 | | Product Dimensions L x W x H | 8 x 8 x 12 centimetres | | Size | 2" Dielectric Mirror Diagonal, Twist-Lock | | Style | Dielectric Star Diagonal | ## Images ![Celestron 93573 Dielectric Star Diagonal 2" with Twist Lock - Image 1](https://m.media-amazon.com/images/I/71XiD8sfEML.jpg) ## Available Options This product comes in different **Size, Style** options. ## Frequently Bought Together - Celestron 93573 Dielectric Star Diagonal 2" with Twist Lock - Celestron 93436 Luminous 2-Inch 2.5X Barlow Lens (Silver) - Celestron Luminos Eyepiece – 2” 19mm --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.com.ar/products/175832978-celestron-93573-dielectric-star-diagonal-2-with-twist-lock](https://www.desertcart.com.ar/products/175832978-celestron-93573-dielectric-star-diagonal-2-with-twist-lock) --- *Product available on Desertcart Argentina* *Store origin: AR* *Last updated: 2026-08-22*