MaxField® Glass Aspheric Lenses are manufactured from aspheric glass material.
MaxField® Indirect Ophthalmoscope Lens 14D (Ocular Instruments)
Features a computer optimized aspheric design for maximum resolution and field of view. Made of high transmittance glass for bright, clear images.
Image Mag: 4.17x Static FOV: 38°
Lenses come standard with black ring.