The Kowa TE-17W 30x Eyepiece is a wide angle eyepiece 30x, 7 lens elements in 5 groups. Field of view 10% wider than conventional eyepieces.
TSN 77X/88X 30X W/A (TE-17W)
This high-performance eyepiece design with 7 lens elements in 5 groups provides easy viewing with an eye relief of 20 mm and field of view approximately 10% wider than conventional eyepieces. This wide field of view is extremely useful when searching for subjects that you want to bring into view. The 20mm eye relief allows you to see the entire field of view, even when wearing eyeglasses.
Brand | Kowa |
Magnification | 30x |
Exit Pupil Diameter | 2.9 mm |
Field of View (m@1000m) | 41.9 m |
Field of View (degrees) | 2.4 |
Twilight Factor | 51.4 |
Eye Relief | 20 mm |