William Optics 4mm UWAN Wide Angle 1.25" Eyepiece

Manufacturer : William Optics
Part Number : WA-UWAN-4

The ultimate high power eyepiece for ultra wide field views! UWAN 4mm will yield truly amazing views of our 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!

Current rating is 5.00. Total votes 1.

$198.00

Product reviewsProduct SpecificationsCustomer picturesProduct Features

As good as the other UWANs

The 4mm UWAN is a great eyepiece for the money. It has comfortable eye relief for someone without glasses, but might be a little tight if you wear glasses while observing. It is sharp to the edge, and a great eyepiece for higher powers for my 80mm APO refractor. Highly Recommended for all around viewing.

From: | Created on: 10/16/2009 1:48:53 PM

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Focal Length (mm)	4
Eye Relief (mm)	12
AFOV (Degrees)	82
Lens Construction	7 elements / 4 groups
Barrel Size	1.25"

Internally fully blackened (lenses’ edges and internal spacers).
Outstanding ultra-wide eyepiece: 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.
Innovative twist-up rubber eyecup.
No internal reflections, kidney beaning or other distracting distortions!
High-resistance anodized black barrel.
Threaded for filters.
No flaring or ghosting on high-contrast objects.
Parfocal.
Long eye-relief for its focal length: 12 mm.
Smooth design for no hook up in your focuser.