WLLIAM OPTICS UWAN 28mm 2 目鏡



Newest W.O. Ultra Wide Angle eyepiece. Great performance at a great price!!
It perfectly fits the description of "a great premium eyepiece at a unbeatable
price": you will never part with it, and it will give you great low-power views
of our galaxy for many nights. Check out prices of competing products and make
up your mind after a trial session with this outstanding eyepiece.
Exclusively from William Optics.
Super Wide FOV
• Outstanding ultra-wide field of view: 82 deg. F.O.V.
• Fully Multi Coated lenses for excellent light transmittance.
• Reduced chromatic aberration.
• Improved contrast compared to similar EPs.
Great Contrast
• Internally fully blackened (lenses’ edges and internal spacers).
• No flaring or ghosting on high-contrast objects.
• Parfocal.
Light and Easy
• Innovative twist-up rubber eyecup.
• Long eye-relief for its focal length: 18 mm.
• 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.
| Internally baffled, All lenses' edges and internal spacers blackened, Fully multicoated | |
| Model | UWAN 28 |
| Focal Length | 28mm |
| Field Stop Diameter | 43.5mm |
| Lens Structure (#Elements/#Groups) | 6/4 |
| Field of View | 82 |
| Eye Relief | 18mm |
| Barrel | 2" |
| Coating | FMC |
| Parfocal | Yes |
| Weight | 1000g |