SVBONY · SV136 · F9172A
A wider window on the night sky
Step closer to lunar craters, bright planets and compact deep-sky targets with a 9mm eyepiece offering a spacious 72° apparent field of view.
|
72° Wide apparent field |
9mm Focal length |
1.25″ Standard barrel |
Why choose the SV136 9mm?
Its wide apparent field gives a generous viewing experience and helps you follow objects more comfortably through a manually tracked telescope. The 9mm focal length provides useful higher magnification when atmospheric conditions support it.
- Fully multi-coated lenses help reduce reflections and maintain transmission.
- Five elements in four groups form the wide-angle optical design.
- Blackened lens edges help control stray light.
- Fold-down rubber eyecup helps shield your eye from surrounding light.
- 1.25-inch filter thread accepts compatible standard eyepiece filters.
What will you see?
Explore lunar crater walls and shadows, observe Jupiter or Saturn on steady nights, examine double stars and take a closer look at brighter compact objects such as globular clusters. The result depends on your telescope, sky conditions and target brightness.
Will it fit my telescope?
Yes, if your telescope uses a standard 1.25-inch (31.7mm) eyepiece holder. Magnification is your telescope’s focal length divided by 9mm: a 900mm telescope gives 100×; a 1200mm telescope gives approximately 133×.
For spectacle wearers: the 7mm eye relief is relatively short, so seeing the entire apparent field while wearing glasses may be difficult.
Technical specifications
| Model / SKU | SVBONY SV136 / F9172A |
|---|---|
| Focal length | 9mm |
| Apparent field | 72° |
| Eye relief | 7mm |
| Field stop | 12mm |
| Lens design | 5 elements / 4 groups |
| Barrel | 1.25 inch / 31.7mm |
| Filter thread | M28.5 × 0.6 |
Frequently asked questions
Is this the 18mm version?
No, this is specifically the 9mm SV136 (F9172A).
Can I use a Moon filter?
Yes, a compatible 1.25-inch filter can be fitted to the barrel; filters are sold separately.
Can beginners use it?
Yes, provided your telescope accepts 1.25-inch eyepieces and the resulting magnification is suitable. A lower-power eyepiece is usually easier for first finding an object.
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