Explore Scientific LER Ar 2", 40mm, 62° eyepiece (54040)

Explore Scientific's 62° eyepieces offer exceptional edge definition, even with fast optics and a large visual field. Their generous pupillary distances allow users to view the entire field comfortably, even while wearing glasses. These eyepieces are designed to minimize fatigue from awkward neck angles and prolonged observation, ensuring an optimal viewing experience.

The argon gas filling effectively prevents internal fogging, while the watertight seal protects against dust, lens fungus, and cleaning fluids. This robust design guarantees years of reliable performance and observational enjoyment.

Key Features:

• Patented EMD coating for maximum contrast

• Carefully blackened lens edges to minimize reflections

• Stainless steel sleeve with a conical safety groove

The abbreviation "LER" stands for long eye relief, indicating a large pupillary distance. These eyepieces are particularly well-suited for glasses wearers.

Specifications

Capacity

• Focal length (mm): 40

• Apparent field of view (°): 62

• Connection (to the telescope): 2"

• Coating of optical system: EMD multi-coating

• Eye relief (mm): 28

Special Features

• Adjustable eyepiece cup: Yes (folding)

• Inert gas charge: Yes

• Water-proof: Yes

General Information

• Series: 62° LER

• Weight (g): 650

• Length (mm): 114

• Type: Eyepiece

• Type of build: SWA