William Optics 40mm SWAN eyepiece, 2'' (4723)

The SWAN eyepiece delivers reference-quality performance at an outstanding price. With its fully multi-coated lenses and advanced optical design, it offers a super wide 72° apparent field of view, creating an immersive experience much like looking out of a spaceship window. The "Moon Walk" effect is achieved to perfection, making lunar and deep sky observing truly impressive.

Field stops are precisely designed, lens edges are blackened, and the coatings are optimized for high contrast and brightness, making this eyepiece a reliable choice for any astronomical session.

Specifications

• Focal length: 40 mm

• Apparent field of view: 72°

• Eye relief: 28 mm

• Number of lens elements: 5

• Connection to telescope: 2"

• Optical coating: Multiple layers

• Adjustable eyepiece cup: Folding

• Homofocal: Yes

• Filter thread: Yes

• Inert gas charge: No

• Type: Eyepiece

• Design: Super Wide Angle (SWA)

• Weight: 570 g

• Series: SWAN