iStar 127 mm f/8 Doublet

SN2021299B

Wavefront Error = 0.045 wave

Strehl Ratio = 0.922

700

600

500

400

300

200

100

0

0 100 200 300 400 500 600 700

-70 -65 -60 -55 -50 -45 -40 -35 -30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70

0.2

0.15

0.1

0.05

0

-0.05

-0.1

-0.15

-0.2

0.2

0.15

0.1

0.05

0

-0.05

-0.1

-0.15

-0.2

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Profile of wavefront error

Surface Smoothing diameter 10.00% of surface diameter 12.7 mm

1/8 wave on wavefront

-1/8 wave on wavefront

Radius mm

y=0

iStar 127 mm f/8 Doublet

SN2021300B

Wavefront Error = 0.023 wave

Strehl Ratio = 0.979