TS Optics UWAN 7mm 82° 1.25″ Eyepiece
The TS Optics UWAN 7mm eyepiece gives you an 82° apparent field of view. When you look through it, you genuinely feel as though you are looking through a window into space - not through a keyhole. The 7mm focal length provides strong magnification, while the wide field lets you take in star clusters, nebulae and planetary details all at once, without losing the wider scene.
Optics and build quality
The optical design uses 7 lenses in 4 groups. For a UWA-type construction, this is a well-balanced arrangement that delivers good correction across the entire field of view. The eyepiece is nitrogen-filled, so the internal optics stay clean and clear even when you move between different temperatures - for example, when taking your telescope from a warm room out into a cool night.
Eye relief and filter compatibility
The 12mm eye relief works for observers both with and without glasses. A fold-down eyecup lets you adjust your viewing position to whatever feels most comfortable. The eyepiece includes a standard filter thread, so you can attach a UHC, O-III or planetary filter without any adapters. It fits the standard 1.25″ barrel size.
Size and weight
At 45 x 88mm and 167g, the UWAN 7mm sits in the mid-weight range for eyepieces. It is compact enough not to put unnecessary strain on your focuser, yet solid enough to feel reliable both in your hand and on the telescope.
Who is this eyepiece for?
The TS Optics UWAN 7mm 82° eyepiece is an excellent choice for observers who want a comfortable, optically capable eyepiece for medium magnification with the widest possible field of view in the 1.25″ category.
Key specifications
| Parameter |
Value |
| Focal length |
7mm |
| Apparent field of view |
82° |
| Barrel diameter |
1.25″ |
| Optical design |
7 lenses in 4 groups |
| Eye relief |
12mm |
| Gas filling |
Nitrogen |
| Filter thread |
Yes (standard 1.25″) |
| Eyecup |
Fold-down |
| Dimensions |
45 x 88mm |
| Weight |
167g |
Why choose the TS Optics UWAN series?
The UWAN series is designed to offer a genuinely wide field of view without sacrificing sharpness towards the edges. The 82° apparent field is among the broadest available in the 1.25″ format. Whether you are exploring deep-sky objects or following planetary detail, this eyepiece gives you more of the sky in a single view.
Suitable for
- Star clusters and open clusters
- Nebulae and extended deep-sky objects
- Planetary observation at medium magnification
- Observers who wear glasses
- Any telescope with a standard 1.25″ focuser
Compatible filters
- UHC filter
- O-III filter
- Planetary filter
- Moon filter and other standard 1.25″ filters
