--- product_id: 499984920 title: "SV209 Field Flattener, 1.0X Flattener Corrects The Field, FMC Coating, M63x1 Connection, for SV550 80mm F6 APO OTA Astrophotography" brand: "svbony" price: "€ 362.76" currency: EUR in_stock: true category: "Svbony" url: https://www.desertcart.hr/products/499984920-sv209-field-flattener-1-0x-flattener-corrects-the-field-fmc store_origin: HR region: Croatia --- # Supports full-frame & half-frame cameras 1.0X field flattener for SV550 OTA M63x1 connection + built-in 2-inch filter thread SV209 Field Flattener, 1.0X Flattener Corrects The Field, FMC Coating, M63x1 Connection, for SV550 80mm F6 APO OTA Astrophotography **Brand:** svbony **Price:** € 362.76 **Availability:** ✅ In Stock ## Summary > 🌌 Elevate your astrophotography—flatten the field, not your ambitions! ## Quick Answers - **What is this?** SV209 Field Flattener, 1.0X Flattener Corrects The Field, FMC Coating, M63x1 Connection, for SV550 80mm F6 APO OTA Astrophotography by svbony - **How much does it cost?** € 362.76 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/499984920-sv209-field-flattener-1-0x-flattener-corrects-the-field-fmc) ## 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 - • **Seamless Integration:** Includes M63 extension tube and M48 adapter ring ensuring the classic 55mm back focal length for hassle-free setup. - • **Built-In Filter Mounting:** 2-inch filter thread built-in—ditch extra adapters and easily customize your imaging with your favorite filters. - • **Optimized for SV550 80mm APO:** Specifically engineered to enhance your SV550 OTA’s performance, eliminating fringe field curvature for pro-level astrophotography. - • **Universal Camera Compatibility:** Supports both half-frame and full-frame cameras with a generous 45mm effective field of view—capture the cosmos your way. - • **Crystal-Clear Edge-to-Edge Views:** Corrects field curvature without altering focal length or plane, delivering sharp astrophotos across the entire frame. ## Overview The SVBONY SV209 Field Flattener is a precision optical accessory designed exclusively for the SV550 80mm F6 APO telescope. It corrects field curvature to produce sharp, distortion-free images while maintaining the original focal length and focal plane. Equipped with an M63x1 connection, M48 adapter ring, and built-in 2-inch filter thread, it supports both half-frame and full-frame cameras, making it a versatile upgrade for serious astrophotographers seeking flawless wide-field captures. ## Description Buy SVBONY SV209 Field Flattener, 1.0X Flattener Corrects The Field, FMC Coating, M63x1 Connection, for SV550 80mm F6 APO OTA Astrophotography: Hunting Knife Sharpeners - desertcart.com ✓ FREE DELIVERY possible on eligible purchases ## Features - SV209 is a special field flattener for SV550 80F6 OTA; which can effectively improve the image quality problem of SV550 OTA fringe field curvature - SV209 keeps the focal length and focal plane position of the primary mirror unchanged while improving the field curvature problem - The package of SV209 is equipped with an M63 extension tube and an M48 adapter ring to ensure that the back focal length of the flat field mirror is the astronomical conventional 55mm length - The effective field of view of the 45mm large target surface supports not only half-frame cameras; but also full-frame cameras - Built-in 2-inch filter mounting thread; supports 2-inch filter installation; customers do not need to buy a filter adapter ring separately ## Technical Specifications | Specification | Value | |---------------|-------| | Additional Features | Corrects field curvature, maintains focal length and focal plane position, supports half-frame and full-frame cameras, includes M63 extension tube, M48 adapter ring, and built-in 2-inch filter mounting thread | | Asin | B0B31NQKJJ | | Best Sellers Rank | #52 in Telescope Eyepieces | | Brand | SVBONY | | Compatible Devices | Camera, Telescope, Telescope Filter | | Customer Reviews | 4.1 4.1 out of 5 stars (21) 4.1 out of 5 stars | | Eye Piece Lens Description | no | | Focus Type | Fixed Focus | | Item Dimensions D X W X H | 4.5"D x 4"W x 4"H | | Manufacturer | SVBONY | | Manufacturer Part Number | FCAW9161A | | Model Name | FW9161A | | Model Number | FCAW9161A | | Mount | no | | Unit Count | 1.0 Count | | Warranty Description | We provide 1 year warranty for SVBONY telescope accessories and 30 days no reason to return. Beyond the warranty period: We still offer maintain service, buyers are required to afford corresponding costs. We processed in the most hassle-free way possible.You just need to contact with us on Amazon ,we will reply you within 12 hours | | Zoom Ratio | 1x | ## Product Details - **Brand:** SVBONY - **Compatible Devices:** Camera, Telescope, Telescope Filter - **Eye Piece Lens Description:** no - **Focus Type:** Fixed Focus - **Manufacturer:** SVBONY - **Model Name:** FW9161A - **Product Dimensions:** 4.5"D x 4"W x 4"H - **Telescope Mount Description:** no - **Unit Count:** 1.0 Count - **Zoom Ratio:** 1x ## Images ![SV209 Field Flattener, 1.0X Flattener Corrects The Field, FMC Coating, M63x1 Connection, for SV550 80mm F6 APO OTA Astrophotography - Image 1](https://m.media-amazon.com/images/I/61uPCxw22IL.jpg) ![SV209 Field Flattener, 1.0X Flattener Corrects The Field, FMC Coating, M63x1 Connection, for SV550 80mm F6 APO OTA Astrophotography - Image 2](https://m.media-amazon.com/images/I/71Zq10D5lJL.jpg) ![SV209 Field Flattener, 1.0X Flattener Corrects The Field, FMC Coating, M63x1 Connection, for SV550 80mm F6 APO OTA Astrophotography - Image 3](https://m.media-amazon.com/images/I/61Mrx-De5jL.jpg) ![SV209 Field Flattener, 1.0X Flattener Corrects The Field, FMC Coating, M63x1 Connection, for SV550 80mm F6 APO OTA Astrophotography - Image 4](https://m.media-amazon.com/images/I/61Zer2TPzSL.jpg) ![SV209 Field Flattener, 1.0X Flattener Corrects The Field, FMC Coating, M63x1 Connection, for SV550 80mm F6 APO OTA Astrophotography - Image 5](https://m.media-amazon.com/images/I/71bMyJ0Kt7L.jpg) ## Available Options This product comes in different **Size** options. ## Frequently Bought Together - SVBONY SV209 Field Flattener, 1.0X Flattener Corrects The Field, FMC Coating, M63x1 Connection, for SV550 80mm F6 APO OTA Astrophotography - SVBONY SV550 APO Triplet Refractor, 80mm F6 OTA with Micro-Reduction Rap Focuser, Portable Telescope Adults for Deep Sky Astrophotography and Visual - SVBONY SV211 Dovetail Base, Finderscope Mount Bracket, 135mm Telescope Handle Bar, to Handle Telescope and Installation of Finder Scope for Optical Telescope --- ## 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.hr/products/499984920-sv209-field-flattener-1-0x-flattener-corrects-the-field-fmc](https://www.desertcart.hr/products/499984920-sv209-field-flattener-1-0x-flattener-corrects-the-field-fmc) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-07-23*