--- product_id: 352993364 title: "SVBONY SV193 2\" 0.8X Field Flattener for SV503 80mm F7 ED Telescope" brand: "svbony" price: "ā‚¬ 13.51" currency: EUR in_stock: false reviews_count: 13 url: https://www.desertcart.hr/products/352993364-svbony-sv193-2-0-8x-field-flattener-for-sv503-80mm store_origin: HR region: Croatia --- # Multi-coated optics M48x0.75 camera thread 0.8x focal reduction SVBONY SV193 2" 0.8X Field Flattener for SV503 80mm F7 ED Telescope **Brand:** svbony **Price:** ā‚¬ 13.51 **Availability:** āŒ Out of Stock ## Summary > šŸŒ  Elevate Your Night Sky Experience! ## Quick Answers - **What is this?** SVBONY SV193 2" 0.8X Field Flattener for SV503 80mm F7 ED Telescope by svbony - **How much does it cost?** ā‚¬ 13.51 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/352993364-svbony-sv193-2-0-8x-field-flattener-for-sv503-80mm) ## 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 - ā€¢ **Filter Ready:** Customize your shots with 2-inch filter compatibility for light pollution control. - ā€¢ **Durable Design:** Crafted from high-quality aluminum for longevity and reliability in the field. - ā€¢ **Enhanced Exposure:** Achieve breathtaking celestial images with shorter exposure times. - ā€¢ **Capture the Cosmos:** Transform your astrophotography with stunning clarity and minimal distortion. - ā€¢ **Seamless Compatibility:** Easily connects to your SV503 80mm F7 ED telescope and full-frame cameras. ## Overview The SVBONY SV193 Focal Reducer is a 2-inch, 0.8x field flattener designed for astrophotography enthusiasts. It connects seamlessly to refractor telescopes and full-frame cameras, allowing for stunning celestial photography with reduced distortion and shorter exposure times. Its durable aluminum construction and compatibility with 2-inch filters make it an essential accessory for capturing the beauty of the night sky. ## Description desertcart.com : SVBONY SV193 2" 0.8X Field Flattener for SV503 80mm F7 ED Telescope | Corrects Field Curvature,New Focal Length: 448mm at F/5.6,Full-frame Compatible,Hard-anodized Aluminum Body : Electronics Review: A "Must Have" accessory if you have the SVBONY SV503 70ED or the 80ED Refractor - This is a "must have" for the SVBONY SV503 80ED and the 70ED. On the 70ED telescope, it drops the focal ratio from f/6 to f/4.8 for a wider field of view and slightly brighter (faster) image. With the 70ED, I was able to get the entire Pleiades cluster on my ZWO ASI183MC Pro camera sensor with almost zero vignetting. Review: Not Five Stars by Far.. - Not happy at all. You can definitely see the stars in all four corners look like eggs. When you look at a non cropped picture like my Christmas Tree star cluster and Cone Nebula shot you can see what Iā€™m talking about. I do not recommend. I also had a sv503 that I purchased that the whole focuser just came loose during a session. I walked out to check on my rig and noticed that the camera was completely sideways. You could literally wobble the focuser back and forth. I purchased the ATO and reducer back in September and only got to use it a handful of times. Iā€™d recommend maybe saving a couple bucks and purchase something of more reliable quality. When I contacted customer support. All they did was send me a couple of screenshots and an explanation of what a retaining thumbscrew was used for and after a couple of emails svbony dropped the ball on me. Not happy but lessons learned trying to save a couple of bucks. ## Features - Focal reducer and field flattener is one of the essential accessories for astrophotography; SV193 2 inch 0.8x focal reducer and field flattener for refractor telescopes - With advanced refractor; SV193 0.8x focal reducer can take dazzling celestial photos without worrying about the distortion of the star points on the edge of the photo - The front end is a standard 2-inch socket to connect to the main lens; and the back end is M48x0.75 threaded to connect to the camera bayonet; support Full Frame Camera - Accepts 2 inch filters; includes standard 2 inch filter thread to add light pollution filter you need - The 0.8 times defocusing system shortens the exposure; it can meet the needs of astrophotographers who need sufficient exposure in a short time ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B094QSGPPN | | Best Sellers Rank | #217 in Telescope Eyepieces | | Brand | SVBONY | | Coating Description | Multi Coating | | Compatible Devices | Full-frame cameras, 2-inch filter thread compatible devices | | Customer Reviews | 4.8 out of 5 stars 101 Reviews | | Enclosure Material | Aluminum | | Exposure Control Type | Manual | | Item Dimensions L x W | 2"L x 2"W | | Item Weight | 0.3 kg | | Manufacturer | SVBONY | | Manufacturer Part Number | FCAW9152B | | Material | Aluminum | | Media Type | ProductImage | | Model Name | SV193 | | Model Number | FCAW9152B | | Number of Items | 1 | | Number of Pieces | 1 | | Photo Filter Effect Type | Neutral Density | | Photo Filter Factor | 0.8 x | | Photo Filter Size | 5.1 centimeters | | Photo Filter Thread Size | 5.1 centimeters | | Screen Size | 2 inches | | Special Effect | Neutral Density | | Thread Size | 5.1 centimeters | | 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 | | Water Resistance Level | Not Water Resistant | ## Product Details - **Brand:** SVBONY - **Coating Description:** Multi Coating - **Material:** Aluminum - **Number of Pieces:** 1 - **Photo Filter Effect Type:** Neutral Density - **Photo Filter Factor:** 0.8 x - **Photo Filter Thread Size:** 50.8 Millimeters - **Product Dimensions:** 2"L x 2"W - **Water Resistance Level:** Not Water Resistant ## Images ![SVBONY SV193 2" 0.8X Field Flattener for SV503 80mm F7 ED Telescope - Image 1](https://m.media-amazon.com/images/I/61fTvLvb+NS.jpg) ![SVBONY SV193 2" 0.8X Field Flattener for SV503 80mm F7 ED Telescope - Image 2](https://m.media-amazon.com/images/I/51BNcJqKweS.jpg) ![SVBONY SV193 2" 0.8X Field Flattener for SV503 80mm F7 ED Telescope - Image 3](https://m.media-amazon.com/images/I/61Z1M+YQ6rS.jpg) ![SVBONY SV193 2" 0.8X Field Flattener for SV503 80mm F7 ED Telescope - Image 4](https://m.media-amazon.com/images/I/61RePVet4DS.jpg) ![SVBONY SV193 2" 0.8X Field Flattener for SV503 80mm F7 ED Telescope - Image 5](https://m.media-amazon.com/images/I/41jnZEo7P0S.jpg) ## Customer Reviews ### ā­ā­ā­ā­ā­ A "Must Have" accessory if you have the SVBONY SV503 70ED or the 80ED Refractor *by P***H on May 19, 2025* This is a "must have" for the SVBONY SV503 80ED and the 70ED. On the 70ED telescope, it drops the focal ratio from f/6 to f/4.8 for a wider field of view and slightly brighter (faster) image. With the 70ED, I was able to get the entire Pleiades cluster on my ZWO ASI183MC Pro camera sensor with almost zero vignetting. ### ā­ā­ā­ā­ā­ Not Five Stars by Far.. *by P***T on December 3, 2022* Not happy at all. You can definitely see the stars in all four corners look like eggs. When you look at a non cropped picture like my Christmas Tree star cluster and Cone Nebula shot you can see what Iā€™m talking about. I do not recommend. I also had a sv503 that I purchased that the whole focuser just came loose during a session. I walked out to check on my rig and noticed that the camera was completely sideways. You could literally wobble the focuser back and forth. I purchased the ATO and reducer back in September and only got to use it a handful of times. Iā€™d recommend maybe saving a couple bucks and purchase something of more reliable quality. When I contacted customer support. All they did was send me a couple of screenshots and an explanation of what a retaining thumbscrew was used for and after a couple of emails svbony dropped the ball on me. Not happy but lessons learned trying to save a couple of bucks. ### ā­ā­ā­ā­ā­ It does flatten the picture as long as... *by X***R on October 5, 2023* The flatner works well when not adding anything between the flatner and the dslr camera. On a CCD you will need a 55mm space between the camera sensor and the flatner. DSLR camera already measure 55mm so just the flatner is the only thing needed. The flatner was made for small sensor like the one that comes with the ccd cameras so a little bit of egg shape stars might still form. You might need to process the stars with a lens distortion tool in adobe. ## Frequently Bought Together - SVBONY SV193 Focal Reducer 2 Inch 0.8X Field Flattener Telescope Accessory for SV503 80mm F7 ED Telescope - SVBONY SV503 Telescope Tube, 80mm F7 Telescope OTA with Focal Length 560mm & ED Lens for Adults & Beginners High Powered, Compact and Portable Tube for Exceptional Viewing and Astrophotography - SVBONY Universal Dovetail Base, Finderscope Mount Bracket, for Installation of Finder Scope for Optical Telescope --- ## Why Shop on Desertcart? - šŸ›’ **Trusted by 1.3+ Million Shoppers** ā€” Serving international shoppers since 2016 - šŸŒ **Shop Globally** ā€” Access 737+ million products across 21 categories - šŸ’° **No Hidden Fees** ā€” All customs, duties, and taxes included in the price - šŸ”„ **15-Day Free Returns** ā€” Hassle-free returns (30 days for PRO members) - šŸ”’ **Secure Payments** ā€” Trusted payment options with buyer protection - ā­ **TrustPilot Rated 4.5/5** ā€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/352993364-svbony-sv193-2-0-8x-field-flattener-for-sv503-80mm](https://www.desertcart.hr/products/352993364-svbony-sv193-2-0-8x-field-flattener-for-sv503-80mm) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-08-14*