Bushnell's Kellner Eyepieces are simple designs intended for use on telescopes with apertures not larger than f/8.0.
| Focal Length | 25.0mm |
| Eye Relief | Not Specified by Manufacturer |
| Apparent Field of View | Not specified by manufacturer |
| Dimensions (WxH) | 1.3 x 3.1" (34 x 79mm) |
| Weight | 0.21 lb (95 g) |