SVBONY SV233 7-Piece Telescope Accessory Kit
- 6mm & 17mm Plössl Eyepieces
- 2x Barlow Lens (2-Element)
- Moon, ND, and #82A Color Filters
- 1.25" Barrel Size
- Fully Multi-Coated Optics
- M28.5x0.6mm Filter Threads
The Svbony SV233 7 Piece Telescope Accessory Kit expands your observing capabilities with two 1.25" Plössl eyepieces at 6mm and 17mm focal lengths, each offering a 48° apparent field of view. This kit effectively quadruples your magnification options by including a 2-element, 2x Barlow lens with M42x0.75 threads. A set of three filters—a Moon filter, an ND filter, and a #82A color filter—thread directly onto the eyepieces with a standard M28.5x0.6mm thread to enhance contrast on specific celestial targets.
This kit is built around two versatile 1.25" Plössl eyepieces, providing both high-power and medium-power views right out of the box. Both eyepieces feature fully multi-coated optics and blackened lens edges to maximize contrast and light transmission within their 48° apparent field of view. The 17mm eyepiece offers a comfortable 12.5mm of eye relief for general-purpose viewing, while the 6mm eyepiece pushes magnification for detailed views of planetary surfaces, though its 3.5mm eye relief is tight and requires close eye placement.
Included in the SV233 kit is a 2-element Barlow lens that doubles the magnification of any 1.25" eyepiece. This accessory instantly transforms your two eyepieces into four magnification options, converting the 17mm into an 8.5mm and the 6mm into a high-power 3mm. The Barlow features M42x0.75 T-threads, allowing you to attach a DSLR or dedicated astronomy camera for basic afocal imaging, adding another layer of utility to the kit.
To improve views of bright objects, the kit includes three essential 1.25" filters that attach via M28.5x0.6mm threads. The Moon filter reduces glare without altering color, increasing contrast on lunar maria and crater walls. The ND (Neutral Density) filter provides a more significant brightness reduction, useful for observing Venus or splitting bright double stars. Finally, the #82A light blue filter enhances low-contrast features on Jupiter and Mars, helping to define cloud bands and surface details.
The Svbony SV233 kit is designed for observing the Moon, planets, and bright double stars. The 6mm eyepiece (and 3mm with Barlow) is ideal for high-magnification views of Jupiter's cloud bands, Saturn's rings, and craters on the Moon. The 17mm eyepiece provides lower magnification for wider views of the entire lunar disc or open star clusters like the Pleiades (M45).
The 2x Barlow lens is placed into your telescope's 1.25" focuser first. You then insert an eyepiece, like the 17mm Plössl, into the top of the Barlow. This doubles the eyepiece's native magnification, turning the 17mm into an 8.5mm. It's an easy way to get more power without buying additional eyepieces.
For lunar observation, you have two primary options in the SV233 kit:
No, the 3.5mm eye relief on the 6mm eyepiece is very short. Eyeglass wearers will find it impossible to see the full 48° field of view because their glasses prevent their eye from getting close enough. To use this eyepiece, you will need to remove your glasses. The 17mm eyepiece, with its 12.5mm eye relief, is more accommodating for observers who wear glasses.
This kit is compatible with any telescope that accepts standard 1.25" eyepieces. This includes the vast majority of consumer refractors, reflectors, Schmidt-Cassegrains, and Maksutov-Cassegrains from brands like Celestron, Meade, Orion, Sky-Watcher, and Svbony itself.
Each eyepiece and the Barlow lens have standard M28.5x0.6mm female threads on the bottom of their chrome barrels. Simply screw your chosen filter (e.g., the Moon filter) into these threads until it is finger-tight. The filter will then be securely in the light path.
| Eyepiece Type | Plössl |
| Included Focal Lengths | 6mm & 17mm |
| Apparent Field of View | 48° (both eyepieces) |
| Eye Relief | 3.5mm (on 6mm), 12.5mm (on 17mm) |
| Barrel Size | 1.25" |
| Optical Coatings | Fully Multi-Coated |
| Lens Edges | Blackened |
| Barlow Magnification | 2x |
| Barlow Lens Design | 2-Elements |
| Barlow Threads | M42x0.75 (T-threads) |
| Included Filters | Moon Filter, ND Filter, #82A Color Filter |
| Filter Threads | M28.5x0.6mm |
| Material | Aluminum Alloy, Glass |
6mm Plössl 1.25" Eyepiece
× 1
17mm Plössl 1.25" Eyepiece
× 1
2x Barlow Lens 1.25"
× 1
Moon Filter 1.25"
× 1
ND Filter 1.25"
× 1
#82A Light Blue Filter 1.25"
× 1
Protective Caps
× 1 Set