Explore Scientific 82° 4.7mm AR Eyepiece – 1.25"
Experience high-magnification observing with the Explore Scientific 82° Series 4.7mm AR Eyepiece, designed for astronomers who demand sharp, high-contrast views and an immersive ultra-wide field of view. With its short 4.7mm focal length and generous 82° apparent field of view, this premium eyepiece is an excellent choice for detailed observations of the Moon, planets, double stars and compact deep-sky objects under suitable atmospheric conditions.
Immersive 82° Wide-Angle Viewing
The expansive 82° apparent field of view provides a more immersive observing experience than conventional narrow-field eyepieces. It is particularly useful with Dobsonian telescopes and other manually tracked telescopes, allowing celestial objects to remain in view longer before requiring a tracking adjustment.
High-Contrast, Fully Multi-Coated Optics
The advanced 7-element, 4-group optical design incorporates Explore Scientific's EMD fully multi-coated optics to maximise light transmission and contrast. Blackened lens edges and matte-black internal surfaces help suppress stray light and internal reflections, supporting crisp, high-contrast views of fine lunar details, planetary features and close double stars.
Weather-Resistant, Precision-Built Construction
The eyepiece is argon-purged, sealed and waterproof, helping protect its internal optics against moisture, dust and internal fogging. Its precision-machined metal construction is designed for dependable performance during regular observing sessions. A foldable rubber eyecup provides a comfortable viewing position, while the 1.25-inch barrel ensures compatibility with standard 1.25-inch telescope focusers.
Key Features
Focal length: 4.7mm for high-magnification observing
Apparent field of view: 82°
Optical design: 7 elements in 4 groups
Optical coatings: EMD fully multi-coated
Eye relief: Approximately 13.6mm
Barrel diameter: 1.25 inches (31.7mm)
Protection: Argon-purged, sealed and waterproof
Stray-light control: Blackened lens edges and internally blackened barrel
Eyecup: Foldable rubber eyecup
Weight: Approximately 214g
Recommended for: Lunar and planetary observing, double-star splitting and high-magnification observations with compatible telescopes.
The Explore Scientific 82° 4.7mm AR is a compelling upgrade for observers seeking premium optical performance and an expansive field of view in a compact, high-power eyepiece.
Note: The magnification obtained depends on your telescope's focal length. High-magnification performance also depends on atmospheric seeing, telescope collimation and thermal equilibrium.