Kowa 20-60X Zoom Eyepiece (TSN880/770)

**Limited Stock** The Kowa TE-10Z 20-60 Zoom eyepiece fits the TSN 770 and TSN 880 Series spotting scopes. It has an aspheric lens; this enables a clean image along the total view. This eyepiece has 6 groups of lenses with a total of 9 elements. Magnification (x): 20-60 Objective lens diameter (mm): 80 Eye Relief (mm): 17 Exit Pupil (mm): 4-1.33(77mm)/4.4-1.5 (88mm) Diopter Compensation: +/- n/a Field of view, real (degrees): 2.4-1.1 Field of view at 1000m (m): 41.5-19 Minimum focus distance (m): n/a Relative brightness: 15.2-1.7 (77mm)/19.3-2.2(88mm) Twilight number: 39-68 (77mm)/42-73 (88mm) Size: 55 x 105mm Weight (g): 325