1.523 photochromic glass lens

1.523 photogray and photobrown glass lens

1) can be used in and out doors, in all climates and for many different activities
2) high original transmit, high rate of darkening in the sun
3) power range:
A) sph: Plano to -6.00/cyl: -0.25~-4.00
B) sph: +0.25 to +5.00/cyl: -0.25~-4.00

4)60mm,65mm