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Volk® 20D BIO lens, blue ring, 46°/60° FOV, 3.13x image mag., 0.32x laser spot, 50.0mm working distance, ideal for imaging of the macular and optic disc | Ambler Surgical
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A Positioning of examiner with 20D lens in one hand and smartphone with... | Download Scientific Diagram
Affordable 20D lenses from oDocs - fundus examination | A range of affordable ophthalmic lenses from oDocs Eye Care is now available. These were made for DIY, handheld smartphone fundoscope, and building
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20D Volk Lens Blue | Indirect Bio Lenses | Volk Lenses | Ophthalmic Instruments, Optical Equipment and Optometry Supplies
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