Vertical prism.down:InvLen:Pt:Corrective lens.right:Qn:Lensmeter
vertical prism.down:invlen:pt:corrective lens.right:qn:lensmeter
Vertical prism.down:InvLen:Pt:Corrective lens.right:Qn:Lensmeter
vertical prism.down:invlen:pt:corrective lens.right:qn:lensmeter