Omegon SWA 38 mm 2-inch Eyepiece

Omegon SWA 38 mm 2-inch Eyepiece – Product description

38 mm super-wide-angle eyepiece with 2-inch barrel, 70° apparent field, five lens elements, broadband multi-coating and adjustable eyecup.

Key product details

• Deep-sky observers
• Dobsonian users
• Telescopes with a 2-inch focuser
• Locating and observing large star fields
• 38 mm focal length
• 2-inch barrel

Product overview

The Omegon SWA 38 mm is the longest focal-length eyepiece in the SWA range and is designed for particularly large true fields of view. It is well suited to locating objects and observing extended deep-sky targets.

Suitable applications

• Deep-sky observers
• Dobsonian users
• Telescopes with a 2-inch focuser
• Locating and observing large star fields

Included equipment

• 38 mm focal length
• 2-inch barrel
• 70° apparent field of view
• Five lens elements
• Broadband multi-coating
• Blackened lens edges
• Continuously adjustable eyecup

Consider the exit pupil

On very fast telescopes, a 38 mm eyepiece can produce a very large exit pupil, meaning the full telescope aperture may no longer be used effectively.

Practical note

Divide the eyepiece focal length by your telescope's focal ratio to estimate the exit pupil and check whether 38 mm is a sensible choice.

Selection note

Related products: Telescope accessories at Optikshop24.