This set of biconvex lenses consists of one lens of each of the sizes listed below, i.e. a total of 10 lenses of different sizes and powers.

Size Optical power Focal length

ø 12.5 mm 48 dioptres 21 mm
ø 14.5 mm 36 dioptres 28 mm
ø 17.5 mm 30 dioptres 33 mm
ø 22.5 mm 24 dioptres 42 mm
ø 25.0 mm 20 dioptres 50 mm
ø 25.0 mm 10 dioptres 100 mm
ø 30.0 mm 16 dioptres 62 mm
ø 30.0 mm 36 dioptres 28 mm
ø 31.5 mm 18 dioptres 56 mm
ø 40.0 mm 10 dioptres 100 mm

cylindrical edge 1 - 2.5 mm (pressed edge)

Tolerances:

from 40 mm Ø the size tolerances are subject to the deviations from the nominal dimension that the raw glass compacts have.