Perfectly corrected for field curvature, astigmatic aperrations and coma - deliver excellent retinal image. Its advanced double aspheric glass design further maintains linear image magnification and perfect image clarity across the entire field of view for unsurpassed fundus examinations. The Volk 20 Diopter BIO Lens is available with standard large holding ring V20LC, small ring V20SC, and for the Argon/Diode Laser VDI20LC. An optional Yellow Filter is also available for these 20 diopter lenses VYF20L. Supplied in lined leather like case.
Image Magnification: 3.08x
Laser Spot Magnification: 0.32x
Static Field of View: 46/60 degrees
Working Distance: 50mm
Clear Aperture, Large Ring: 50mm
Clear Aperture, Small Ring: 35mm
Lens Weight: N/A