--- product_id: 550039742 title: "SVBONY SV181 Rack and Pinion Focuser, 1.25 inch, Newtonian Reflector Focuser for Newtonian Reflector Telescope" brand: "svbony" price: "4067838β‚«" currency: VND in_stock: true reviews_count: 5 category: "Svbony" url: https://www.desertcart.vn/products/550039742-svbony-sv181-rack-and-pinion-focuser-1-25-inch-newtonian store_origin: VN region: Vietnam --- # Dust cover extends equipment life 65mm precise rack & pinion travel Brass ring protects eyepiece barrel SVBONY SV181 Rack and Pinion Focuser, 1.25 inch, Newtonian Reflector Focuser for Newtonian Reflector Telescope **Brand:** svbony **Price:** 4067838β‚« **Availability:** βœ… In Stock ## Summary > πŸ”­ Elevate your cosmic view with precision and protection! ## Quick Answers - **What is this?** SVBONY SV181 Rack and Pinion Focuser, 1.25 inch, Newtonian Reflector Focuser for Newtonian Reflector Telescope by svbony - **How much does it cost?** 4067838β‚« with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/550039742-svbony-sv181-rack-and-pinion-focuser-1-25-inch-newtonian) ## Best For - svbony enthusiasts ## Why This Product - Trusted svbony brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Built to Protect:** Internal brass ring design prevents eyepiece damage and ensures secure fit - β€’ **Dustproof Durability:** Includes 1.25-inch dust cover to shield your focuser from dust and moisture - β€’ **Reflection-Free Viewing:** Fully threaded matte interior minimizes stray light for crisp images - β€’ **Tailored for Newtonians:** Optimized for 114mm & 150mm Newtonian reflectorsβ€”upgrade your stargazing game - β€’ **Pinpoint Precision Focus:** Smooth 65mm rack & pinion travel for razor-sharp clarity at any magnification ## Overview The SVBONY SV181 Rack and Pinion Focuser is a high-precision, 1.25-inch focuser designed specifically for 114mm and 150mm Newtonian reflector telescopes. Featuring a smooth 65mm focusing stroke with a rack & pinion mechanism, it offers fine-tuned control for sharp, stable images. Its brass ring design protects eyepieces from damage, while the fully threaded matte interior reduces internal reflections. The included dust cover safeguards your equipment, ensuring longevity and consistent performance under the stars. ## Description Do you have focusing problems for your telescope? Do you want to give your reflector an accurate focuser? SVBONY SV181 Rack & Pinion Focuser for Newtonian reflector is coming! 65mm Focusing Stroke Roller-bearing design provides zero image-shift through focusing range easily achieve the sharpest focus through a telescope even at high magnifications For 114mm and 150mm Newtonian Reflector Telescopes This particular curved base focuser is made for Newtonian style reflectors and would not be ideal on Maksutov or Smidt Cassigrains 1.25inches Inner Diameter Smooth accurate for reflector telescopes accepts 1.25in eyepieces; Comes with a dust plug to protect the focuser from dust and moisture when no in use Specifications: Focuser Type: Rack Pinion Design The focuser tube: 105mm Focuser Travel : 65mm Eyepiece adapter : 31.75mm Material: Metal Compatibility: Suitable for 114mm and 150mm Newtonian reflector telescope Net weight: 410g Package Includes: 1x SV181 1.25" R&P Reflector Style Focuser 1 x M4 Screw 1 x M6 Screw Review: Muy buena calidad y costo del producto - Este soporte lo ocupe en un telescopio que fabrique y gracias a la cremallera puedo hacer un mejor enfoque, les comparto una foto la Luna Review: Very well built at least when compared to cheap bushnell stock focuser ## Features - Smooth SV181 Rack and Pinion Focuser for reflector telescopes accepts 1.25inches eyepieces - The gear can be fine tuning; You can adjust the focal length by the gear; Focuser Travel is 65mm; and fine tuning more accuracy - Brass ring design; Internal brass ring that the set screw hits to hold your 1.25inches eyepiece inside for eliminates marks on your eyepiece barrel - Internal matting design; the inside of the item fully threaded to minimize reflections - Come with 1.25 inch dust cover; It can protect your equipment from dust; Thereby extending the service life of the equipment ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08HX1MWMM | | Best Sellers Rank | #731,840 in Electronics ( See Top 100 in Electronics ) #75 in Telescope Reflectors | | Brand | SVBONY | | Brand Name | SVBONY | | Coating | StarBright XLT | | Compatible Devices | Newtonian reflector telescope - 114mm, Newtonian reflector telescope - 150mm | | Customer Reviews | 4.3 out of 5 stars 102 Reviews | | Eye Piece Lens Description | Plossl | | Field Of View | 0.95 Degrees | | Finderscope | Reflex | | Focal Length Description | 65 millimeters | | Focus Type | Manual Focus | | Item Dimensions D x W x H | 14.5D x 11.4W x 10.4H Centimeters | | Item Weight | 410 Grams | | Manufacturer | SVBONY | | Manufacturer Part Number | FCAW9140A | | Model Name | SV181 | | Model Number | FCAW9140A | | Mount | 1.25 inches mount | | Objective Lens Diameter | 114 Millimeters | | Optical Tube Length | 1.25 Inches | | Optical-Tube Length | 1.25 Inches | | Power Source | Manual | | Product Features | Adjustable metal gear focuser, smooth focus with dual knobs, built-in brass ring, fully threaded interior | | Telescope Mount Description | 1.25 inches mount | ## Product Details - **Brand:** SVBONY - **Optical Tube Length:** 1.25 Inches - **Eye Piece Lens Description:** Plossl - **Objective Lens Diameter:** 114 Millimeters - **Focus Type:** Manual Focus ## Images ![SVBONY SV181 Rack and Pinion Focuser, 1.25 inch, Newtonian Reflector Focuser for Newtonian Reflector Telescope - Image 1](https://m.media-amazon.com/images/I/61EQY4EPQtL.jpg) ![SVBONY SV181 Rack and Pinion Focuser, 1.25 inch, Newtonian Reflector Focuser for Newtonian Reflector Telescope - Image 2](https://m.media-amazon.com/images/I/71RvNeam0JL.jpg) ![SVBONY SV181 Rack and Pinion Focuser, 1.25 inch, Newtonian Reflector Focuser for Newtonian Reflector Telescope - Image 3](https://m.media-amazon.com/images/I/714IMvOSWLL.jpg) ![SVBONY SV181 Rack and Pinion Focuser, 1.25 inch, Newtonian Reflector Focuser for Newtonian Reflector Telescope - Image 4](https://m.media-amazon.com/images/I/61bJksdGKhL.jpg) ![SVBONY SV181 Rack and Pinion Focuser, 1.25 inch, Newtonian Reflector Focuser for Newtonian Reflector Telescope - Image 5](https://m.media-amazon.com/images/I/71kqNADttJL.jpg) ## Questions & Answers **Q: Will the sv181 fit on an orion xt6?** A: thanks so much for your question. Yes, this SVBONY SV181 Rack and Pinion Focuser is suitable for orion xt6. **Q: What is the width of the rack itself? I know the length is 64mm but I need to know the width** A: Dear customer , Thanks for your contact. 74mm. For accessories;we provide 2 months warranty;within 2 months;you can return for refund or replacement.If you have any other questions about warranty;please contact us freely;we will work with you win to win. If my reply still doesn't answer your question well or you want to know more details about this product, please contact us by message on Amazon. Because the customer's message can be seen in the first time on Amazon, and will solve the problem as soon as possible. Once I receive your response, I will try my best to answer your questions. Sincerely look forward to your reply. Best wishes ! Kelly **Q: How can I add a 1 1/4 inch UHC filter at the bottom of the threaded eyepiece barrel?** A: thanks for your question, This SVBONY SV181 Rack and Pinion Focuser does not have filter threads and cannot attach filters directly, you can add filters to the bottom of your eyepiece when inserting it. **Q: Will this fit on a celestron 130 slt?** A: thanks for your question. Yes, the SVBONY SV181 Rack and Pinion Focuser fit on a celestron 130 slt. If any, please concact us via amazon message, we are always here for you. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Muy buena calidad y costo del producto *by L***O on 9 April 2023* Este soporte lo ocupe en un telescopio que fabrique y gracias a la cremallera puedo hacer un mejor enfoque, les comparto una foto la Luna ### ⭐⭐⭐⭐⭐ Very well built at least when compared to cheap bushnell stock focuser *by M***T on 26 January 2021* ### ⭐⭐⭐⭐⭐ GREAT focuser *by M***S on 5 July 2021* ## Frequently Bought Together - SVBONY SV181 Rack and Pinion Focuser, 1.25 inch, Newtonian Reflector Focuser for Newtonian Reflector Telescope - SVBONY Telescope Lens 23mm Telescopes Eyepieces Wide Angle 62 Degree Aspheric Eyepiece Fully Coated Lens for 1.25 inches Astronomic Telescopes - Astronomical Telescope Accessories D114F900mm with Short-axis Secondary Mirror 25mm, Newton Reflector Spherical Mirror --- ## 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.vn/products/550039742-svbony-sv181-rack-and-pinion-focuser-1-25-inch-newtonian](https://www.desertcart.vn/products/550039742-svbony-sv181-rack-and-pinion-focuser-1-25-inch-newtonian) --- *Product available on Desertcart Vietnam* *Store origin: VN* *Last updated: 2026-05-22*