At a Glance
20mm
Focal Length
68°
Apparent FOV
16mm
Eye Relief
1.25"
Barrel Size
Score Breakdown
Overview
The SVBONY 68-degree 20mm eyepiece is a solid entry-level wide-field option for 1.25-inch telescopes. At 20mm focal length, it delivers low magnification, which is exactly what you want when sweeping for nebulae, open clusters, or large deep-sky objects that benefit from a broader field of view. The 68-degree apparent field is genuinely wide for this price range, giving you an immersive view that narrower budget eyepieces simply cannot match.
Fully multi-coated optics help squeeze out contrast and light transmission, which matters most when you are chasing faint extended objects under less than perfect skies. The internally blackened barrel reduces stray light scatter, a detail that cheaper eyepieces sometimes skip. The fold-down rubber eyecup accommodates eyeglass wearers reasonably well, though those with significant astigmatism may still want to experiment with eye relief positioning.
The standard M26.5 filter thread means you can attach a light pollution or narrowband filter directly, which is a practical bonus. At just over thirty dollars, this eyepiece competes well against similarly priced options and draws strong user ratings across hundreds of reviews. It is not a premium eyepiece, but for visual wide-field observing it punches above its weight.
Key Features
- 68-degree apparent field of view provides noticeably wider, more immersive views than typical budget eyepieces
- Fully multi-coated optics improve contrast and light throughput for faint nebulae and star clusters
- Internally blackened barrel reduces internal reflections that can wash out low-contrast targets
- Fold-down rubber eyecup offers practical accommodation for observers who wear glasses
- Standard M26.5x0.6 filter thread accepts 1.25-inch filters without adapters
- Low magnification at 20mm makes it a strong first choice for finding objects and framing large targets
- Aluminum housing with black anodizing is durable and keeps weight manageable at the eyepiece end
Specifications
| Focal Length | 20mm |
| Apparent FOV | 68° |
| Eye Relief | 16mm |
| Barrel Size | 1.25" |
| Design | Wide Angle |
| Elements/Groups | 5/3 |
| Series | 68° |
| Coating | Fully Multi-Coated |
| Waterproof | No |
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Amazon Reviews
There was a delay in shipping, but once it was shipped was super quick. The eye piece was exactly ams described and very clear, super happy with it. Really feels well made, still fits inside telescope dslr adapter as well.
Great eyepiece. The image is clear. It fits perfectly in a telescope that takes 1 1/4 or has an adapter for one. The eyepiece has a good amount of eye relief and also field of view. I really like this eyepiece.
Really solid eyepieces at a great price. Image is clear and has a nice field of view. The amount of eye relief can be a bit challenging with my glasses.
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