The Kowa TE-17W 30x Wide-Angle Eyepiece is a wide-angle eyepiece compatible with the TSN-880 and 770 series spotting scopes. The wide-angle eyepiece is ideal for those that don't wear thick glasses and want to be "swimming in field". This will provide you with more real field than with a zoom eyepiece, allowing easier subject tracking with the benefit of more observable detail thanks to the increase in magnification.
| Magnification | 30x |
| Angle of View | 2.6° |
| Field-of-View (@ 1000 Yds) | 137' (45.5 m) |
| Exit Pupil Diameter |
2.6mm with TSN-770 Series 2.9mm with TSN-880 Series |
| Eye Relief | 20mm |
| Relative Brightness |
6.7 with TSN-770 Series 8.4 with TSN-880 Series |
| Twilight Factor |
48 with TSN-770 Series 51 with TSN-880 Series |
| Weatherproofing | Waterproof & fogproof |
| Dimensions | 2.2 x 3.45" (55 x 87mm) |
| Weight | 0.69 lb (315g) |