--- product_id: 298191204 title: "Sky-Watcher Sky-Watcher EvoGuide 50DX – 50mm Guide Scope APO Doublet Refractor – Lightweight Guide Scope – Easy Mounting – 50mm Astrograph" brand: "sky-watcher" price: "$644.87" currency: USD in_stock: true reviews_count: 13 category: "Sky Watcher" url: https://www.desertcart.us/products/298191204-sky-watcher-sky-watcher-evoguide-50dx-50mm-guide-scope-apo store_origin: US region: United States of America --- # 50mm APO doublet lens 242mm focal length, f/4.8 fast optics Dual mounting adapters included Sky-Watcher Sky-Watcher EvoGuide 50DX – 50mm Guide Scope APO Doublet Refractor – Lightweight Guide Scope – Easy Mounting – 50mm Astrograph **Brand:** sky-watcher **Price:** $644.87 **Availability:** ✅ In Stock ## Summary > 🌌 Elevate your night sky game with precision and speed! ## Quick Answers - **What is this?** Sky-Watcher Sky-Watcher EvoGuide 50DX – 50mm Guide Scope APO Doublet Refractor – Lightweight Guide Scope – Easy Mounting – 50mm Astrograph by sky-watcher - **How much does it cost?** $644.87 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/298191204-sky-watcher-sky-watcher-evoguide-50dx-50mm-guide-scope-apo) ## Best For - sky-watcher enthusiasts ## Why This Product - Trusted sky-watcher brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Fast f/4.8 Astrograph:** Short 242mm focal length with a 1.25” helical focuser enables quick, contrast-rich captures and easy focusing. - • **Pinpoint Precision Optics:** Expertly matched ED glass delivers coal-black skies and razor-sharp star images for flawless guiding and imaging. - • **Future-Proof T-Thread Ready:** Built-in T-threads let you upgrade to a fast astrograph setup with optional adapters, expanding your astrophotography horizons. - • **Seamless Mounting Flexibility:** Includes machined aluminum finder stalk and V-style rail compatible with all Sky-Watcher mounts—no adapters needed. - • **Ultra-Lightweight & Versatile:** At just 2.7 lbs, this compact guide scope mounts effortlessly anywhere—perfect for on-the-go astrophotographers. ## Overview The Sky-Watcher EvoGuide 50DX is a premium 50mm apochromatic doublet refractor designed for astrophotography guiding and lightweight imaging. Featuring expertly matched ED glass, a fast f/4.8 focal ratio, and versatile mounting options, it delivers sharp, high-contrast star images with minimal weight. Its built-in T-threads and included adapters make it adaptable for advanced setups, making it a top choice for serious amateur astronomers seeking reliable, portable, and high-performance optics. ## Description Sky-Watcher Evostar refractors provide the finest images obtainable in their design class. The EvoGuide 50 DX provides users with an easy, lightweight guidescope for astrophotography, while delivering dramatic, coal-black skies and faithful, contrast-rich views those in need of a fast, low-focal length astrograph. Sky-Watcher Evostar refractors are the logical choice for the discriminating amateur astronomer looking for an investment in advanced instrumentation for exceptional viewing and astrophotography. The EvoGuide 50 DX includes a V-style mounting rail and a refractor-style finder stalk compatible with all Sky-Watcher optical tubes. ## Features - EXPERTLY MATCHED GLASS: This small, lightweight 50mm f/4.8 Apochromatic Doublet refractor uses expertly matched ED glass to deliver dramatic, coal-black skies and faithful, contrast-rich views - MOUNT ANYWHERE: The EvoGuide 50 DX includes two mounting adapters: a machined aluminum finder stalk compatible with all Sky-Watcher finder brackets, and a V-style mounting rail - 242mm FOCAL LENGTH, f/4.8, 1.25” helical focuser, finder stalk, Vixen-style mounting plate, prime focus ring - BUILT-IN T-THREADS: By using an optional adapter (not included), the EvoGuide 50 DX will turn into a fast, low-focal length astrograph ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0915HDN8W | | Additional Features | Lightweight, versatile guide scope for both visual observing and astrophotography, easy mounting, and adaptable for astrophotography with an optional adapter. | | Best Sellers Rank | #2,204 in Camera & Photo Products ( See Top 100 in Camera & Photo Products ) #153 in Telescope Refractors | | Brand | Sky-Watcher | | Built-In Media | Finder Stalk, Refractor OTA, Tube Rings, V-style Dovetail | | Coating | Fully Coated | | Compatible Devices | Guide Cameras, Smartphones | | Customer Reviews | 4.8 out of 5 stars 58 Reviews | | Exit Pupil Diameter | 10.42 Millimeters | | Eye Piece Lens Description | Removable | | Field Of View | 1.1 Degrees | | Finderscope | Reflex | | Focal Length Description | 242 millimeters | | Focus Type | Auto Focus | | Global Trade Identification Number | 00050234111744 | | Item Dimensions D x W x H | 8.75"D x 2.5"W x 2.5"H | | Item Type Name | Sky-Watcher EvoGuide 50DX – 50mm Guide Scope APO Doublet Refractor – Lightweight Guide Scope 50mm Astrograph | | Item Weight | 2.7 Pounds | | Manufacturer | Sky-Watcher | | Manufacturer Part Number | S11174 | | Model Name | EvoGuide 50DX Guide Scope Doublet APO Refractor | | Model Number | S11174 | | Mount | Guide Scope Ring Mount | | Objective Lens Diameter | 50 Millimeters | | Optical Tube Length | 10 Inches | | Optical-Tube Length | 10 Inches | | Power Source | Manual | | Telescope Mount Description | Guide Scope Ring Mount | | UPC | 050234111744 | | Unit Count | 1.0 Count | | Warranty Description | 2 years | | Zoom Ratio | 50 multiplier x | ## Product Details - **Brand:** Sky-Watcher - **Eye Piece Lens Description:** Removable - **Finderscope:** Reflex - **Focus Type:** Auto Focus - **Item Weight:** 2.7 Pounds - **Model Name:** EvoGuide 50DX Guide Scope Doublet APO Refractor - **Objective Lens Diameter:** 50 Millimeters - **Optical Tube Length:** 10 Inches - **Product Dimensions:** 8.75"D x 2.5"W x 2.5"H - **Telescope Mount Description:** Guide Scope Ring Mount ## Images ![Sky-Watcher Sky-Watcher EvoGuide 50DX – 50mm Guide Scope APO Doublet Refractor – Lightweight Guide Scope – Easy Mounting – 50mm Astrograph - Image 1](https://m.media-amazon.com/images/I/61fEH3ltYdL.jpg) ![Sky-Watcher Sky-Watcher EvoGuide 50DX – 50mm Guide Scope APO Doublet Refractor – Lightweight Guide Scope – Easy Mounting – 50mm Astrograph - Image 2](https://m.media-amazon.com/images/I/71DOBv6isGL.jpg) ![Sky-Watcher Sky-Watcher EvoGuide 50DX – 50mm Guide Scope APO Doublet Refractor – Lightweight Guide Scope – Easy Mounting – 50mm Astrograph - Image 3](https://m.media-amazon.com/images/I/710jHEEGxNL.jpg) ![Sky-Watcher Sky-Watcher EvoGuide 50DX – 50mm Guide Scope APO Doublet Refractor – Lightweight Guide Scope – Easy Mounting – 50mm Astrograph - Image 4](https://m.media-amazon.com/images/I/71N0q0kE3dL.jpg) ![Sky-Watcher Sky-Watcher EvoGuide 50DX – 50mm Guide Scope APO Doublet Refractor – Lightweight Guide Scope – Easy Mounting – 50mm Astrograph - Image 5](https://m.media-amazon.com/images/I/71N0aByRGPL.jpg) ## Questions & Answers **Q: What size is its image circle?** A: The illuminated field for the EVOGuide 50DX is 28mm. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by A***R on October 15, 2025* ### ⭐⭐⭐⭐⭐ Review *by T***. on January 31, 2025* ### ⭐⭐⭐⭐ Review *by D***Y on November 25, 2024* ## Frequently Bought Together - Sky Watcher Sky-Watcher EvoGuide 50DX – 50mm Guide Scope APO Doublet Refractor – Lightweight Guide Scope – Easy Mounting – 50mm Astrograph - SVBONY Universal Dovetail Base, Finderscope Mount Bracket, for Installation of Finder Scope for Optical Telescope - ZWO ASI120MM-Mini 1.2MP Monochrome Astronomy Camera, Compact, 1280x960 CMOS Sensor, USB2.0 Type-C, ST4 Port, Black --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/298191204-sky-watcher-sky-watcher-evoguide-50dx-50mm-guide-scope-apo](https://www.desertcart.us/products/298191204-sky-watcher-sky-watcher-evoguide-50dx-50mm-guide-scope-apo) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-05-07*