Eyepiece Explore Scientific 82° 4.7 mm 1.25-inch

The Eyepiece Explore Scientific 82° 4.7 mm 1.25-inch is a high-magnification ocular engineered for visual astronomy. With a 4.7 mm focal length and an 82° apparent field of view, this 1.25-inch eyepiece delivers wide, immersive views suitable for planetary observation, lunar detail, and bright deep-sky objects when used with compatible telescopes. Its compact format is intended for observers who need increased magnification without changing the telescope's optical configuration.

Advantages

This eyepiece combines a short focal length with a large apparent field of view to offer an expanded image scale and broad sky coverage. Optical design minimizes aberrations at medium to high magnification, producing clear views of planetary features and lunar surface structure. The 1.25-inch barrel ensures compatibility with a wide range of telescope focusers and diagonal adapters, and the eyepiece's construction provides stable eye placement for comfortable viewing sessions.

Suitable for

• High-magnification planetary observation
• Detailed lunar viewing
• Bright deep-sky objects at increased scale
• Observers using 1.25-inch focusers and diagonals
• Astrophotography visual aids and eyepiece projection setups

Key specifications

• Focal length: 4.7 mm
• Apparent field of view: 82°
• Barrel diameter: 1.25 inches
• Intended use: visual astronomy
• Optical performance: designed for reduced aberrations at higher magnification

How to use

Insert the 1.25-inch barrel into your telescope's focuser or diagonal and secure it with the focuser thumbscrews. Use a stable mount and allow the telescope to reach thermal equilibrium for best views. Start at lower magnification to center the target, then switch to the 4.7 mm eyepiece to increase magnification and observe fine planetary or lunar detail. Adjust eye relief and interpupillary position to achieve a full, comfortable field of view.

Usage recommendations

For optimal performance, use this eyepiece on telescopes with sufficient focal length to avoid overly narrow fields and to maintain sharpness at high magnification. Atmospheric seeing conditions strongly affect image quality at 4.7 mm; choose nights with steady air for detailed observation. Protect optics from dew and store the eyepiece in a padded case when not in use.