Integral Zoom Eyepiece: The zoom eyepiece allows users to easily find their subjects using a wide field of view and then zoom in for finer detail Compact and Lightweight: The waterproof and fogproof construction, combined with its compact and lightweight body, makes this Fieldscope extremely mobile Fully Multicoated Eco-Glass Lenses and Prisms: With fully multicoated optics, the PROSTAFF 3 Fieldscope provides bright, high-contrast images that are rich with color