VOLK Pan Retina Aspheric Lens, 2.2

Aspheric surface corrects the aberrations present in more common spherical lenses, which helps to improve the field of view for diagnosis. VOLK’s double-aspheric lenses eliminate more distortion for better overall imaging.

• Lenses with a higher Dioptre power provides a wider field of view, lower magnification, and the best performance through small pupils.
• Lenses with a lower Dioptre power have a narrower field of view, higher magnification, and do not perform well through a small pupil.

Lens Orientation

Double aspheric lenses are not always symmetric on both sides. A lens with asymmetric aspheres will produce different optical results depending on which side of the lens you look through. The VOLK “V” is like an arrow and is designed to point towards the patient. Some lenses have a silver rim on one side of the ring – it should always be on the side of the lens closest to the patient.

• The Pan Retinal 2.2 combines the magnification of the 20D lens with the field of view of the 30D lens. It is recommended for almost every examination, even with small pupils.
• Balance of magnification and field of view for general diagnosis.
• Viewing angle: 56° / 73°
• Magnification: 2.68x
• Working distance: 40 mm