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🌠 Unlock the cosmos with crystal-clear clarity — don’t just observe, belong to the stars!
The SVBONY 40mm Plossl Telescope Eyepiece features a fully multi-coated 4-element optical design with a 40° apparent field of view, delivering wide-field, high-contrast views of lunar, planetary, and deep sky objects. Compatible with all standard 1.25" telescopes and equipped with M28.5x0.6 filter threads, it offers versatile accessory integration. Its fold-down rubber eye guard enhances comfort and blocks stray light, while the durable metal construction and included carrying case ensure portability and longevity. Ideal for serious amateur astronomers seeking immersive, detailed celestial observations.















| Asin | B01MAZ7LA6 |
| Best Sellers Rank | #4 in Telescope Eyepieces |
| Brand | SVBONY |
| Built In Media | 1X 40mm eyepiece |
| Camera Lens | The SVBONY 40mm Plossl eyepiece is a fully multi-coated, 4-element optical lens designed for astronomy and telescope use. It features a 1.25-inch barrel with a 40-degree apparent field of view, making it ideal for observing the moon, planets, star clusters, and deep-sky objects. Constructed with blackened lens edges to reduce stray light and housed in durable anodized aluminum, it offers high contrast and clarity. The eyepiece includes a fold-down soft rubber eye guard for comfort and protection, along with an M28.5x0.6 filter thread for compatibility with standard filters. While not intended for photography with interchangeable lenses, it serves as a fixed-focal-length accessory enhancing visual observation experiences. |
| Color | black |
| Compatible Camera Mount | no |
| Compatible Devices | telescope |
| Customer Reviews | 4.6 4.6 out of 5 stars (985) 4.6 out of 5 stars |
| Exposure Control Type | Manual |
| Focal Length Description | 40 millimeters |
| Focus Type | Manual Focus |
| Image Stabilization | No image stabilization |
| Item Weight | 96 g |
| Lens | Wide Angle |
| Lens Coating Description | Fully Coated |
| Lens Design | Fixed |
| Lens Fixed Focal Length | 40 millimeters |
| Manufacturer | SVBONY |
| Manufacturer Part Number | FUSF9122A |
| Maximum Aperture | 4 f_stop |
| Maximum Focal Length | 40 millimeters |
| Media Type | ProductImage |
| Minimum Focal Length | 40 millimeters |
| Model Name | FUSF9122A |
| Model Number | FUSF9122A |
| Number Of Items | 1 |
| Number Of Packs | 1 |
| Photo Filter Size | 28.5 millimeters |
| Real Angle Of View | 40 degrees |
| Screen Size | 40 millimeters |
| Unit Count | 1 Count |
| Upc | 608560829743 |
| Viewfinder Type | Optical |
| 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 | Water Resistant |
| Zoom Ratio | 40 |
User
Excellent Wide-View Eyepiece – Great Value for the Price
The SVBONY 40mm Plössl eyepiece is a fantastic addition to any telescope setup, especially if you enjoy wide-field viewing. It delivers a bright, clear image with a noticeably larger field of view, making it perfect for scanning the night sky, star clusters, and larger deep-sky objects.The fully multi-coated optics really make a difference—images appear sharp with good contrast, and light transmission is impressive for an eyepiece in this price range. It performs especially well under darker skies where you can take full advantage of the wide view.Build quality is solid, with a nice all-metal construction that feels durable and well-made. The eyepiece has a good weight to it without being too heavy, and it fits securely in a standard 1.25” focuser.Eye relief is comfortable, which makes longer observing sessions much more enjoyable, even for beginners. It’s also a great choice if you wear glasses.Overall, this is an excellent budget-friendly upgrade that significantly enhances your viewing experience.
User
Excellent Well made
Excellent quality, very happy with it. have a few other SVbony eyepieces that are very well made and crisp.
User
Great Eyepiece for the money!
I didn't pay very much for this eyepiece, so I was really surprised to see how good it was for the money. I bought it primarily for stargazing. I wanted to bring the power on my 70mm Celestron spotting scope down to 10X (the longest focal length stock eyepiece it came with was 20mm, or 20X).This eyepiece produces a clear, sharp edge-to-edge image of stars, with no signs of optical aberrations. I tested it during the day for terrestrial viewing and found it to produce a sharp image as well. I'm also really pleased with the wide field of view.Good eyepiece!
User
High quality materials and build. Great buy!
Impressive quality as to materials and build. Solid metal and multi-coated glass. Blackened internally to reduce stray light reflections. I have yet to view through it in the field, but am very confident that I will be very pleased, based on a thorough review by my highly trusted and very reliable YouTube reviewer, Jason of Small Optics. I purchased a second one for my neighbors, who are giving their young daughters a Celestron beginners' refractor telescope for Christmas 2023. A 40mm eyepiece is a great tool to be used with the stock eyepieces of any beginner scope or with more advanced scopes, as it provides a wider view of the sky. That wider view enables one to be well-oriented as to where to look and move the scope for bringing desired viewing targets into the center of the telescope's view. Then, one can simply lock the scope to that position, then replace the 40mm eyepiece with a 25mm, 10mm, etc. for greater magnification of the desired target, loosen locks of telescope, and off to viewing the target close up with the more powerful stock eyepiece. Alternatively, the 40mm can help provide beautiful sweeping vistas for those who enjoy simply scanning the night sky full of many more beautiful stars, planets, and clusters, etc. than the naked human eye can ever detect.
User
Just fine
Nice for the money clear easy to look thru
User
Rookie's Perspective - Very Nice Eyepiece
I'm just a rookie so my review must be taken according. I do like the wider angle of the 40mm eyepiece for certain viewing conditions. Materials seem like decent quality.
User
Good!
Fits and works as it shoukd
User
A grate eyepiece
This is grate eyepiece for a Plossl thank you
User
buena calidad
Un ocular de buena construcción, sólido, ofrece vistas brillantes y generoso campo de visión, puede ser útil para quien use gafas pues tiene suficiente alivio. Muy útil.Tal vez el único "pero" es que, su angulo de visión al eje óptico, aunque suficiente, es algo delicado, esto es que si no estas bien alineado ojo-ocular se produce una sombra (kidney beaning). No es un problema por que así son los Plossls. Finalmente es un sobresaliente relación calidad-precio, si lo recomiendo.
User
Good
Good product but not much useful in 1.25 inch barrel...because it can't show wider field then 32 mm due to limit of it's barrel
User
Nice quality
Hi I bought 2 for my binoculars wasn't quite confident for the price.but better than some of my expensive eyepieces
User
Cumpri o que prometi
Produto de ótima qualidade .entrega super rápida
User
Good value. Does the job well.
Good value. Does the job well.
Trustpilot
2 weeks ago
2 weeks ago