The Opticron 40918S IS Zoom Spotting Scope Eyepiece is a high-quality accessory designed specifically for the Opticron 40918S model. With a 22mm item diameter and a maximum magnification range of 10-30x, this eyepiece offers excellent clarity and magnification for a range of viewing experiences. The fully multi-coated optics provide superior image quality, while the zoom feature allows for precise control over the magnification level. Ideal for birdwatching, hunting, or any other outdoor activity where clear and detailed viewing is essential. If you require any further information please send me a message