The 10mm focal length is a cornerstone in any eyepiece kit, offering the perfect bridge between medium and high magnification. It provides enough power to reveal fine structure in nebulae and galaxies without sacrificing brightness or contrast—making it ideal for deep sky observers who want high detail without over-magnifying under average seeing conditions.
The Explore Scientific 52° Series brings together precision optical performance and rugged waterproof construction, delivering bright, contrast-rich views in a versatile and durable design. With a 6-element, 3-group configuration, fully multi-coated optics, and edge-blackened lenses, this eyepiece excels at capturing subtle features in deep sky targets, planetary detail, and tight star clusters.
The long 16.6mm eye relief ensures comfortable use—even for eyeglass wearers—while the removable flip-down silicone eyecup promotes proper eye placement and blocks stray light.
CA Residents: Prop 65 WARNING(S)
🌟 Features & Benefits
- 10mm focal length delivers versatile medium-to-high power views ideal for deep sky, planetary, and lunar observing
- 52° apparent field of view provides an immersive experience with excellent edge-to-edge sharpness
- 16.6mm eye relief supports comfortable viewing for glasses wearers and long sessions
- 6-element / 3-group optical layout with edge-blackened lenses for superior contrast
- EMD (Enhanced Multi-Layer Deposition) coatings maximize light transmission and image clarity
- Argon-purged and waterproof sealed to prevent internal fogging and protect against moisture, dust, and dew
- Flip-down silicone rubber eyecup for glare control and custom comfort
- 1.25" standard barrel with double taper fits all major focusers and diagonals securely
- Ideal for averted vision techniques—perfect for enhancing faint object visibility
- Built from high-quality aluminum, steel, and optical glass for long-term durability
🎯 Who It’s For
- Amateur astronomers seeking a versatile mid-to-high power eyepiece
- Deep sky observers who want detail without brightness loss
- Users needing long eye relief and comfortable ergonomics
- Visual astronomers working in moderate seeing conditions or light-polluted skies
🔭 What You’ll Be Able to See
- Fine structure in nebulae and galaxies
- Details in planetary belts, rings, and lunar surface features
- Tight double stars and dense globular clusters
- Subtle features enhanced using averted vision
🎒 What’s Included
- Explore Scientific 10mm 52° Series Waterproof Eyepiece
- Flip-down silicone rubber eyecup
- Top and bottom dust caps
- Soft protective pouch
Specs
| Item Number | EPWP5210–01 |
|---|---|
| Focal Length | 10mm |
| Apparent Field of View | 52° |
| Eye Relief | 16.6mm |
| Field Stop Diameter | 9.1mm |
| Optical Elements / Groups | 6 Elements in 3 Groups |
| Lens Coatings | EMD (Enhanced Multi-Layer Deposition) |
| Barrel Size / Type | 1.25" O.D. / Double Taper |
| Filter Thread | Standard 1.25" (1.125" x 42 TPI) |
| Waterproofing | Argon Purged; O-Ring Sealed |
| Test Rating | Submersible to 1 Meter for 30 Minutes |
| Eyecup | Removable Flip-Down Silicone Rubber |
| Length | 83mm |
| Width | 43mm |
| Weight | 181.4g (6.4 oz.) |
| Materials | Optical Glass, Aluminum, Steel, Rubber |
| Markings | Laser Engraved: Focal Length, Series, Serial Number, Brand |
Warranty Information
This product is covered by a Limited One-Year USA Warranty, valid when registered within 60 days of purchase. To activate your warranty, please visit the Explore Scientific website and complete the registration form at: