We recommend the special Opticron HR3 zoom eyepiece for Opticron spectroscopes. The wide range of variable magnification allows for true universal use, whether it's scanning the surrounding landscape at low magnification or observing the feathers of a bird resting on a distant tree branch at close magnification. The high quality you expect from Opticron ensures that this eyepiece will stand its ground in all fields of observation.
The HR3 zoom eyepiece's wide-range variable magnification makes it truly universal, whether you're scanning the surrounding landscape at low magnification or observing the feathers of a bird resting on a distant tree branch at close magnification. And with the flip-and-slide eyecup on the zoom eyepiece, you can adjust the viewing distance to your preferred viewing distance in seconds.
The zoom eyepieces have an angle of view ranging from 40° to 58.2°.
