Volk® 30D BIO lens, 58°/75° FOV, 2.15x image mag., 0.47x laser spot, 30.0mm working distance, ideal for small pupil and pediatric diagnosis and treatment | Ambler Surgical
Volk 30D Large Double Aspheric Lens (43mm) – Ophthalmic Instrument Co., Inc.
VOLK Double Aspheric 30D Lens w/ original case | eBay
Volk Aspheric Lens 30D Small - Eickemeyer Veterinary Technology
VOLK Double Aspheric 30D Lens w/ original case | eBay