--- product_id: 36587538 title: "SVBONY Eyepieces 4mm Telescopes Lens Wide Angle 62 Degree Aspheric Eyepiece HD Fully Coated Telescope Accessory for 1.25 inches Astronomic Telescopes" brand: "svbony" price: "99.73 DT" currency: TND in_stock: true reviews_count: 13 category: "Svbony" url: https://www.desertcart.tn/products/36587538-svbony-eyepieces-4mm-telescopes-lens-wide-angle-62-degree-aspheric store_origin: TN region: Tunisia --- # 62° wide-angle field of view Fully multi-coated optics for max clarity 4mm focal length for high magnification SVBONY Eyepieces 4mm Telescopes Lens Wide Angle 62 Degree Aspheric Eyepiece HD Fully Coated Telescope Accessory for 1.25 inches Astronomic Telescopes **Brand:** svbony **Price:** 99.73 DT **Availability:** ✅ In Stock ## Summary > 🌠 Elevate your stargazing game with precision and panoramic views! ## Quick Answers - **What is this?** SVBONY Eyepieces 4mm Telescopes Lens Wide Angle 62 Degree Aspheric Eyepiece HD Fully Coated Telescope Accessory for 1.25 inches Astronomic Telescopes by svbony - **How much does it cost?** 99.73 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/36587538-svbony-eyepieces-4mm-telescopes-lens-wide-angle-62-degree-aspheric) ## 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 - • **Secure & Versatile:** Standard 1.25” fitting with anti-lost design ensures compatibility and peace of mind during every observation. - • **Crystal-Clear Views:** Fully multi-coated glass enhances light transmission and contrast, revealing subtle celestial nuances. - • **Lightweight & Sleek:** At just 0.09 lb, this slim eyepiece is designed for comfort and portability without compromising performance. - • **Expand Your Universe:** 62° wide-angle aspheric design offers immersive, edge-to-edge clarity across deep sky objects and star clusters. - • **Zoom into the Cosmos:** 4mm focal length delivers razor-sharp planetary and lunar details, perfect for serious stargazers. ## Overview The SVBONY 4mm 62° aspheric eyepiece is a premium telescope accessory engineered for high magnification and wide-angle viewing. Featuring fully multi-coated optics for superior light transmission and contrast, it fits any 1.25-inch focuser and weighs just 0.09 lb. Ideal for detailed lunar, planetary, and deep sky observations, this eyepiece combines cutting-edge optical design with a secure anti-lost interface, making it a must-have upgrade for astronomy enthusiasts seeking crisp, immersive celestial experiences. ## Description desertcart.com : SVBONY Eyepieces 4mm Telescopes Lens Wide Angle 62 Degree Aspheric Eyepiece HD Fully Coated Telescope Accessory for 1.25 inches Astronomic Telescopes : Electronics Review: Surprisingly Good! - Really surprised at the overall quality of this very affordable eyepiece (EP)! Wide Apparent Field Of View (AFOV) of 62° and sharp across most of the field. Only thing that could be better is the Eye Relief (ER). To get the full AFOV, your eye needs to be pretty close to the lens. However, this being a high power EP at 4 mm, the ER for this level of magnification naturally won't be great for a "standard" EP like this one. Still, the nearness of my eye to the main lens is not that bad and again, very pleased with this product. What's especially nice is that there is a removable Barlow element threaded in the inside of the chrome EP barrel. That element can be unscrewed - which then makes this a 8 mm EP. So you essentially get 2 EP's in one! I also purchased the 23 mm and it's outstanding! The specs say that the ER on this one is "9 mm", but I'd say it's more like 12 mm-ish. That's not much more than 9 mm but it does make the viewing through it more comfortable. Love the big AFOV and very crisp images. Highly recommend both of these very good EP's as the next step up from any EP's you get bundled with a starter telescope and beyond! Review: Amazing - The difference between this and my stock 25mm Kellner is night and day. Clear, crisp views made setting up my finderscope so much easier. And at this price I got a hell of a lot more than I expected. Seems to be built well and solid. I don’t know about more expensive eyepieces but I have to say this one is is worth every penny. Update: this has become my go to eyepiece. The wide angle makes tracking down object much easier. Yes there is aberration and halos around objects and no flip up eyecup. But it totally beats my stock 25mm. If you’re buying your first telescope I highly recommend this as a “starter” upgrade. For the price and night and day from your stock kellner this will do it. And you can buy replacement eyecups if you need ## Features - Focal length;0.16" 4mm;offer high magnifications;look more closely and more detailed at the moon's surface and other planet; for viewing the moon and planets - Standard 1.25’’ 31.75mm fitting diameter;can be used in any astronomical telescope with a 1.25" focuser;for broad field lunar observations; medium sized star clusters;and a wide range of cloudy nebulas and deep sky targets - Fully coated optics glass eyepieces for excellent image contrast and light transmission;give maximum detail and definition across the entire field of view;highly achromatic;planetary filters enhance details on Jupiter;Saturn;Mars and Venus - 4mm lens only weighs 0.09lb; For lenses with the same refractive index; the 62 degree aspheric eyepiece is thinner and lighter than the spherical eyepiece;designed primarily for planetary observation;perfect for deep sky objects - Wide angle; 4mm 62 degree aspheric eyepiece can get maximum detail and definition across the entire field of view; Anti-lost design; Eyepiece interface recess portion can prevent the loss;Applicable;watch the scenery;bright celestial observations; nebula and so on ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01J7Z1YV2 | | Additional Features | fully multy coated, wide angel | | Best Sellers Rank | #8 in Telescope Eyepieces | | Brand | SVBONY | | Built-In Media | 1x 4mm eyepiece | | Coating | Fully multi-coated | | Compatible Devices | telescope | | Customer Reviews | 4.4 out of 5 stars 1,489 Reviews | | Eye Piece Lens Description | Fully Coated Glass | | Field Of View | 62 Degrees | | Finderscope | Reflex | | Focal Length Description | 0.16 inches | | Focus Type | Manual Focus | | Item Dimensions D x W x H | 2.95"D x 1.57"W x 1.57"H | | Item Weight | 1.44 ounces | | Manufacturer | SVBONY | | Manufacturer Part Number | FAUF9301AA | | Model Name | FUSF9301AA | | Model Number | FAUF9301AA | | Mount | Fixed Mount | | Objective Lens Diameter | 70 Millimeters | | Optical Tube Length | 4 Millimeters | | Optical-Tube Length | 4 Millimeters | | Telescope Mount Description | Fixed Mount | | UPC | 608560862009 | | 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 | 400 multiplier x | ## Product Details - **Brand:** SVBONY - **Eye Piece Lens Description:** Fully Coated Glass - **Finderscope:** Reflex - **Focus Type:** Manual Focus - **Item Weight:** 0.09 Pounds - **Model Name:** FUSF9301AA - **Objective Lens Diameter:** 70 Millimeters - **Optical Tube Length:** 4 Millimeters - **Product Dimensions:** 2.95"D x 1.57"W x 1.57"H - **Telescope Mount Description:** Fixed Mount ## Images ![SVBONY Eyepieces 4mm Telescopes Lens Wide Angle 62 Degree Aspheric Eyepiece HD Fully Coated Telescope Accessory for 1.25 inches Astronomic Telescopes - Image 1](https://m.media-amazon.com/images/I/61ZE50-UxyL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Surprisingly Good! *by M***D on August 29, 2025* Really surprised at the overall quality of this very affordable eyepiece (EP)! Wide Apparent Field Of View (AFOV) of 62° and sharp across most of the field. Only thing that could be better is the Eye Relief (ER). To get the full AFOV, your eye needs to be pretty close to the lens. However, this being a high power EP at 4 mm, the ER for this level of magnification naturally won't be great for a "standard" EP like this one. Still, the nearness of my eye to the main lens is not that bad and again, very pleased with this product. What's especially nice is that there is a removable Barlow element threaded in the inside of the chrome EP barrel. That element can be unscrewed - which then makes this a 8 mm EP. So you essentially get 2 EP's in one! I also purchased the 23 mm and it's outstanding! The specs say that the ER on this one is "9 mm", but I'd say it's more like 12 mm-ish. That's not much more than 9 mm but it does make the viewing through it more comfortable. Love the big AFOV and very crisp images. Highly recommend both of these very good EP's as the next step up from any EP's you get bundled with a starter telescope and beyond! ### ⭐⭐⭐⭐⭐ Amazing *by J***R on February 25, 2026* The difference between this and my stock 25mm Kellner is night and day. Clear, crisp views made setting up my finderscope so much easier. And at this price I got a hell of a lot more than I expected. Seems to be built well and solid. I don’t know about more expensive eyepieces but I have to say this one is is worth every penny. Update: this has become my go to eyepiece. The wide angle makes tracking down object much easier. Yes there is aberration and halos around objects and no flip up eyecup. But it totally beats my stock 25mm. If you’re buying your first telescope I highly recommend this as a “starter” upgrade. For the price and night and day from your stock kellner this will do it. And you can buy replacement eyecups if you need ### ⭐⭐⭐⭐ Excellent Value and Good to better views. *by R***B on January 15, 2019* I used all three of these eyepieces (EP) in my 8” SCT f10; 4” MAK and fast 60mm f5 telescopes. Yes these are light, plastic and inexpensive but don’t let that stop you because these are a true value and I would highly recommend these to 99% of the amateur astronomers. I did a lot of research on the forum outside of Amazon, out there I saw mixed reviews, I agreed with some points especially on the 10mm. For my review I compared my expensive 8.8 and 5.5 Meade SWA EP’s to the 10mm and 4mm. For the 23mm I used my ES 24mm. I viewed on three different nights with good to poor seeing as well as daytime. The 23mm was excellent for day and night. Under dark skies I could hardly tell the difference between my expensive ES 24 and this eyepiece. The ES provided more contrast and darker backgrounds, but the brightness was very similar. Under a bright moon there was a lot of glare off axis, but the view was very good or better when on the objects. I viewed the Orion Nebula, Pleiades, Jupiter and our moon and the view was very good to excellent in all three scopes. The 24 ES cost more than 10 times this EP and so I would highly recommend this SVBONY EP to anyone, even the most critical observers. The 10mm was good to fair in daytime for terrestrial viewing. At night under dark skies the 10mm did not perform very well. The 10mm works ok for the moon but for deep sky the EP was not good. You could argue that comparing this to the Meade 8.8 is not a fair assessment, but I keep the same methodology for all three EPs. The 10mm was dimmer than my Meade 8.8 and did not provide good contrast on all objects in either my fast f5 or slow f10 telescope. Because the 8.8 provides more magnification you would expect the Meade to be the dimmer EP but the 10mm was dim and not sharp. The view in my 4 MAK and 8 SCT scopes was more poor than good. I would think that my slow scopes would be more forgiving, and this eyepiece performance would be better. The view in my fast 60mm was poor which would be expected. I have read similar experiences in the astronomy forums, so my n assessment is not a surprise. Having said all of this you really can’t beat this value of this EP and although I would not recommend the 10mm to everyone, it was certainly useable and probably an upgrade to the vendor supplied EP in less expensive scopes. The 4 mm performance was a surprise and was good for day and very good for night viewing. Under dark skies I could tell the difference between my expensive Meade 5.5 and this 4mm but unless you are using expensive EP’s most people would not notice a big difference. You will notice that the 4mm is taller than the 10mm and perhaps this design explains why the 4mm performs so well compared to the 10mm. What surprised me more was that the EP worked well in all three scopes, slow and even the fast 60mm f5 scope. Some reviews in the forums were very negative about the 4mm but I just could not see the problem. Perhaps it’s because 4mm is high magnification, the eye relief, tripods and mount steadiness, and your telescopes optics impact views at high magnification. My fast scope was inexpensive and has an unsteady tripod but my daytime bird watching and views of the moon and were very good. In the 4mm the views of the moon’s craters were sharp and well defined in the 4mm. Even when comparing to my Meade 5.5mm EP the views were comparable in the 4. Meade has a wider 82-degree view so it was easier to find items in the Meade. In some cases, the view was better in the 4mm than my 5.5 even though the 4mm provided more magnification. You would expect the 4mm to be dimmer than the 5.5 but it was not. I was surprised that the 4mm EP provided good views in my larger slow scopes. For deep sky objects the views were ok; its hard to tell at high magnification because higher power usually means dimmer views and its easier to see deep sky at lower powers. I did take a peek at Orion and the Pleiades and the view was ok. I was unable to test the 4mm on any planets but I would expect the views would be good. Overall, I can recommend this set of Eyepieces although I would probably not buy the 10mm again unless I needed it for a kids viewing session. The 23mm was surprisingly good, too good for the money. I would recommend the 23 to anyone and will probably by this again for my finder EP or binocular viewing. Certainly, if you don’t have a lot of money and need an upgrade buy the 23mm you will not be disappointed. The 4mm was surprisingly sharp and worked very well on the moon. Even with the 10mm performance issues this set of three is well worth the money. ## Frequently Bought Together - SVBONY Eyepieces 4mm Telescopes Lens Wide Angle 62 Degree Aspheric Eyepiece HD Fully Coated Telescope Accessory for 1.25 inches Astronomic Telescopes - SVBONY Telescope Barlow Lens 5X, 1.25 Inch Telescope Accessory, Fully Multi Coated Broadband Green Film Barlow Lens 5X for Astronomy & Astrophotography - SVBONY Universal Cell Phone Adapter Mount Telescope Phone Mount for Binocular Monocular Spotting Scope Telescope Support Eyepiece Diameter 25 to 48mm --- ## 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.tn/products/36587538-svbony-eyepieces-4mm-telescopes-lens-wide-angle-62-degree-aspheric](https://www.desertcart.tn/products/36587538-svbony-eyepieces-4mm-telescopes-lens-wide-angle-62-degree-aspheric) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-07-25*