Explore Scientific Eyepiece 52° LER 40mm 2" (61717)

These eyepieces offer remarkable versatility and flat field performance, delivering exceptionally high image definition that is particularly noticeable when observing planets and the Moon.

The patented EMD coating enhances contrast and eliminates disruptive reflections. With a corrected apparent visual field of 52 degrees, these eyepieces significantly outperform simpler Plössl models. The argon gas filling effectively prevents internal fogging, while the watertight seal ensures protection against dust, lens fungus, and cleaning fluids. This design guarantees years of unparalleled observational enjoyment with these high-quality eyepieces.

The Explore Scientific 52° LER series represents the pinnacle of comfort and quality, offering an exceptional price-performance ratio.

Specifications

Capacity

• Apparent field of view (°): 52

• Coating of optical system: EMD multi-coating

• Connection (to the telescope): 2"

• Focal length (mm): 40

• Eye relief (mm): 27

Special Features

• Homofocal: Yes

• Adjustable eyepiece cup: Yes (folding)

• Inert gas charge: Yes

• Water-proof: Yes

• Filter thread: Yes

Equipment

• Carry case: Included

General Information

• Series: 52° LER

• Type of build: Super-Plössl

• Weight (g): 390

• Length (mm): 103

• Type: Eyepiece