William Optics Telescope 4mm Ocular 1.25" Ultra Wide Angle Eyepiece UWAN4 on sale and available from our online store. OpticsPlanet, Inc is an Authorized US Distributor for William Optics Telescope Accessories.
Field of View: 82, 7 Elements Design, Eye Relief: 12mm
Features of William Optics Telescope 4mm Ocular 1.25" Ultra Wide Angle Eyepiece UWAN4:
The ultimate high power eyepiece for ultra wide field views!
UWAN 4mm will yield truly amazing views of William-Optics starry sky at a truly amazing price. Finished are the times when a quality eyepiece had to cost the earth! Now you have a choice: take it or regret it!
Super Wide FOV
• Outstanding ultra-wide field of view: 82 deg. F.O.V.
• Fully MultiCoated (FMC) glass for excellent light transmittance.
• Reduced chromatic aberration, but still bright.
• Improved contrast compared to similar EPs.
• Internally fully blackened (lenses’ edges and internal spacers).
• No flaring or ghosting on high-contrast objects.
Light and Easy
• Innovative twist-up 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.
• Threaded for filters’ usage.