William Optics 9mm SWAN Ocular 1.25" Wide Angle Eyepiece with 72 Degree Field of View WE-SWAN-9mm 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: 12mm

Specifications of William Optics 9mm SWAN Ocular 1.25" Wide Angle Eyepiece with 72 Degree Field of View WE-SWAN-9mm:

Internally baffled, All lenses' edges and internal spacers blackened, Fully multicoated Model SWAN 9 Focal Length 9mm Lens Structure (#Elements/#Groups) 5/4 Field of View 72 Eye Relief 12mm Barrel 1.25" Coating FMC Parfocal Yes Weight 70g

· Inner Structure

Features of William Optics 9mm SWAN Ocular 1.25" Wide Angle Eyepiece with 72 Degree Field of View WE-SWAN-9mm:
SWAN: a premium eyepiece for your most demanding observations.
Unforgettable views of star clusters and the moon at 72 deg. F.O.V.
A premium eyepiece at a fraction of the cost it’s worth!

Super Wide FOV
• Outstanding super-wide field of view: 72 deg. F.O.V.
• Fully Multicoated lenses for excellent transmittance.
• Reduced chromatic aberration.
• Improved contrast compared to similar EPs.

Great Contrast
• Internally fully blackened (lens edges and internal spacers).
• No flaring or ghosting on high-contrast objects.
• Parfocal.

Light and Easy
• Soft rubber eyecup.
• Long eye-relief: 12mm.
• No internal reflections, kidney beaning or other distracting distortions.

Terrific Fit and Finish
• High-resistance anodized black barrel.
• Smooth design for no hook up in your focuser.

Package Contents:

• 9mm SWAN Ocular 1.25" Wide Angle Eyepiece with 72 Degree Field of View

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 9mm SWAN Ocular 1.25" Wide Angle Eyepiece with 72 Degree Field of View WE-SWAN-9mm Rating & Reviews