Achromatic Lens is an achromatic consists of a positive low-index Crown Glass lens element cemented to a negative high-index Flint Glass lens element.

Specification of our achromatic lens as follow:

*Material:BK7 and ZF2(or according to your request)

*Dia.:+0/-0.05

*Center thickness tolerance:+/-0.1

*Surface quality: 60-40 Scrath/Dig

*Surface figure:0.5-0.2

*Centration < 3arc min

*Chamfer:0.1-0.25*45 degrees

*Design wavelength:486.1mm,587.6mm,656.3mm

(the parameter is demision of nomal lens,so specification will be changed according to different demision and material)