William Optics 20mm SWAN Ocular 1.25" Wide Angle Eyepiece WE-SWAN-20mm on sale and available from our online store. OpticsPlanet, Inc is 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

We offer complete line of William Optics Telescope Accessories. For our complete selection of products by William Optics on sale please visit our William Optics page. For more Telescope Accessories please visit our Telescope Accessories store section.

William Optics 20mm SWAN Ocular 1.25" Wide Angle Eyepiece WE-SWAN-20mm Rating & Reviews