X-Pro Minuo 1.50 Base Curve Selection Guide

Blank Lens

Base

True Base

Radius

Centre

Edge

50 mm

Blank Size: 75 mm  Basecurve 3.00, 4.00, 5.00  

Diameters

Curve

Index 1.53

(mm)

Thickness

Thickness

SAG

Add Powers: 1.00 to 3.50 in 0.25 Dioptre Steps

75

3.00

3.04

174.330

10.0

13.5

1.8

Material Properties: Refractive Index 1.498 Abbe Value 58  Density 1.31

75

4.00

4.35

121.630

10.0

12.0

2.6

Lens Engraving: DX

75

5.00

5.78

91.750

8.0

8.0

3.5

Engraving Code

10

12

15

17

20

22

25

27

30

32

35

Addition Power

1.00

1.25

1.50

1.75

2.00

2.25

2.50

2.75

3.00

3.25

3.50