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Unfortunately William Optics 20mm SWAN Ocular 1.25" Wide Angle Eyepiece WE-SWAN-20mm is no longer carried by OpticsPlanet. You can also explore other items in the Telescope Accessories category yourself to try and find the perfect replacement for you!

William Optics 20mm SWAN Ocular 1.25" Wide Angle Eyepiece WE-SWAN-20mm Product Info

William Optics 20mm SWAN Ocular 1.25" Wide Angle Eyepiece WE-SWAN-20mm on sale and available from our online store. OpticsPlanet, Inc imageis an Authorized US Distributor for William Optics Telescope Accessories.

Field of View: 72, Eye Relief: 17mm

Specifications of William Optics 20mm SWAN Ocular 1.25" Wide Angle Eyepiece WE-SWAN-20mm:

Internally baffled, All lenses' edges and internal spacers blackened, Fully multicoated
Model SWAN 20
Focal Length 20mm
Lens Structure (#Elements/#Groups) 5/4
Field of View 72
Eye Relief 17mm
Barrel 1.25"
Coating FMC
Parfocal Yes
Weight 100g
· Inner Structure

Features of William Optics 20mm SWAN Ocular 1.25" Wide Angle Eyepiece WE-SWAN-20mm:

SWAN: the perfect compromise between quality, cost, eye-relief and edge sharpness.

All with a SWA super-wide angle 72 deg. F.O.V. ! The ultimate 1.25 ” SWA eyepiece.

Try and compare! Ideal with SCT and refractor telescopes.

Perfect match with William Optics telescopes

• Outstanding super-wide field of view: 72 deg. F.O.V.

• Fully Multicoated lenses for excellent transmittance.

• Outstanding chromatic aberration correction.

• Excellent contrast and light throughput for sharp viewing.

Great Contrast

• Internally fully blackened (lens edges and internal spacers).

• No internal reflections.

• No flaring or ghosting on high-contrast objects.

• Parfocal.

Light and Easy

• Soft rubber eyecup

• Long eye-relief: 17 mm

• No internal reflections, kidney bean effect

Terrific Fit and Finish

• High-resistance anodized black barrel.

• Smooth design for no hook up in your focuser.

Package Contents:

  • 20mm SWAN Ocular 1.25" Wide Angle Eyepiece

William Optics 20mm SWAN Ocular 1.25" Wide Angle Eyepiece WE-SWAN-20mm Related Products

William Optics 20mm SWAN Ocular 1.25" Wide Angle Eyepiece WE-SWAN-20mm Unorderable Models

William Optics 20mm SWAN Ocular 1.25" Wide Angle Eyepiece WE-SWAN-20mm, MPN: WE-SWAN-20mm, Code: WO-TA-WE-SWAN-20mm

William Optics 20mm SWAN Ocular 1.25" Wide Angle Eyepiece WE-SWAN-20mm Comments

Customer Reviews
Helpful Positive Review Great eyepiece by Legacy Reviewer, July 8, 2008
This is my second favorite eyepiece, next to 40mm Televue. Pros: Delivers great images.
Read 1 Review