Kowa 25-60x for TSN-880/770 30-70x for TSN-99 Wide Angle Zoom Eyepiece Black TE-11WZ II. This powerful Kowa eyepiece incorporates the same quality construction and excellent optics as the Kowa spotting scopes it's made to work with. This eyepiece fits the TSN-883 TSN-884 TSN-774 and TSN-773 spotting scopes from Kowa. Compatible with TSN-99 TSN-88 TSN-880 and TSN-770 Series. Specifications for Kowa 25-60 Wide Angle Zoom Eyepiece For Kowa 880/770 Series Scopes: Manufacturer: Kowa Magnification: 25 - 70 x Additional Features: Gen 2 Condition: New Field of View Linear: 42 - 23 m at 1000 m Field of View Angle: 2.4 - 1.32 degrees Length: 4.37 in Weight: 13 oz Eye Relief: 17 mm Exit Pupil: 3.5 - 1.5 mm Color: Black Features of Kowa 25-60 Wide Angle Zoom Eyepiece For Kowa 880/770 Series Scopes 25-60x zoom when used with the TSN-880/770 series spotting scopes 30-70x zoom when used with the Kowa TSN-99 scopes Package Contents: Kowa 25-60 Wide Angle Zoom Eyepiece For Kowa 880/770 Series Scopes Lens Covers Carry Bag Kowa TE-11WZ II: 25-60x for TSN-880/770 30-70x for TSN-99 Wide Angle Zoom Eyepiece Black