- SVBONY 1.25-inch Prosser eyepiece is suitable for observing weak-light and dim celestial bodies such as nebulae, star clusters, comets, etc. The field of view is clear and bright, and observation is comfortable;
- Adopting true FMC full-bandwidth multi-layer coating, ensuring that each glass surface has multiple layers of coating for better image quality and the edge of the lens is matt blackened to prevent stray light interference for bright and clear views;
- M28.5*0.6 standard thread size, supports standard 1.25-inch filter adapter ring installation, with wide applicability. Standard Prosser eyepiece structure: 2 groups of 4 optical structures to ensure observation effect;
- 19mm shooting distance, convenient for long-term observation without fatigue. The inner wall of the foot cover has two matte threads, and the outer wall is chrome-plated, with a bright and smooth appearance;
- All-metal mirror structure, delicate texture, fine workmanship. Humanized environmentally friendly rubber anti-slip ring design to prevent accidental crushing.
In Stock
Another great Svbony product
I was looking for a wide field eyepiece for my 127mm telescope. Having good experiences with Svbony eyepieces in the past, this one seemed to tick all the boxes.
Ordering was easy and the item arrived promptly and in fine shape. I'm very impressed with the build and optical quality of this eyepiece, first light was tonight, and the views were great! In my scope, it gives 25X with a 2 degree field of view, just right for star clusters like the Pleaides and Beehive (apparent FOV is 52 degrees, much better than any other 40mm plossl I've ever seen). Star images are sharp almost to the very edge of the field. All this for 50 bucks!
Great Quality/price for F4 Newtonian
Got the 17mm. Very sharp and contrast eyepiece tested on the moon and DSO. Great quality for low price. No distorsion apart the coma that fast newtonians produce. A very great alternative to the eyepieces that come with new scope. Offer great TFoV with short ratio scope.
noticeable upgrade compared to simple eyepieces
I own the 6mm, 12mm, 17mm and 25mm Svbony Plössl.
They feel good and the picturequality is pretty good. they also convince with their coated lens and the black thread which leads to non-reflective images. they are not completely free of distortion (that is hardly any eyepiece) but for the price they are a huge step up compared to simple set eyepieces.
Its a a purchase recommendation without a doubt!
Specifications
| Model | SV131 | SV131 | SV131 | SV131 | SV131 |
| Eyepiece Type | Plossl | Plossl | Plossl | Plossl | Plossl |
| Focal length | 6mm | 12mm | 17mm | 25mm | 40mm |
| Field of View | 48-Degrees | 48-Degrees | 48-Degrees | 48-Degrees | 48-Degrees |
| Exit Pupil | 3.5mm | 9mm | 11mm | 16mm | 22mm |
| Field Stop Diameter | 5mm | 12mm | 16mm | 24mm | 25.6mm |
| Lens group | 2 Group / 4PCS | 2 Group / 4PCS | 2 Group / 4PCS | 2 Group / 4PCS | 2 Group / 4PCS |
| Lens coated | FMC | FMC | FMC | FMC | FMC |
| Side of the lenscoate | Extinction Ink | Extinction Ink | Extinction Ink | Extinction Ink | Extinction Ink |
| Material | Metal | Metal | Metal | Metal | Metal |
| Thread size | M28.5*0.6 | M28.5*0.6 | M28.5*0.6 | M28.5*0.6 | M28.5*0.6 |
| Non-slip Cover | Yes | Yes | Yes | Yes | Yes |
| Eyecup type | Rubber | Rubber | Rubber | Rubber | Rubber |
| Net Weight | 48g/1.69oz | 56.8 g/2.00oz | 71.7 g/2.53oz | 83.6 g/2.95oz | 142.8g/5.04oz |
| Dimension | Ø33.5x40mm | Ø33.5x43.7mm | Ø35.5x50mm | Ø35.5x61.5mm | Ø41x88.5mm |
Features:
SV131 Eyepiece has five focal length sizes, meeting different needs. It has a high-quality image for its fully coating in each glass. Besides, the 48-degree field of view allows you to see more bright images. The all-metal mirror structure will give you comfortable touching. M28.5*0.6 threaded supports 1.25-inch filter adapter installation. The lens edges and inside the barrel are light-removed, which can prevent stray light. The 4-element in 2 groups optical structure brings the great clear images. This eyepiece will show you a brilliant viewing.