FLA-500

FLA-1300

FLA-2000

Lens diameter

<100mm  (optional :diameter extensible)

EFL

 (effective focal     length)

Measuring range

± 2mm to ±500mm

± 2mm to ±1300mm

± 2mm to ±2000mm

Measuring accuracy

2mm to 25mm, 0.1% to 0.3%; 25mm to500mm, 0.03% to 0.1%;500mm to1300mm, 0.06% to 0.4%;
1300mm to 2000mm, 0.06% to 0.4%;

Measuring repeatability

0.03% to 0.2%

BFL (back focal   length) and Radius of curvature

Measuring range

± 2mm to ±500mm  (extensible)

Measuring accuracy

0.03% to 0.3%

Measuring repeatability

0.02% to 0.2%

Window angle and depth of parallelism measurement

±1”

Optional extensible

modulation transfer function (MTF)