Table 1.

Technical characteristics of our Shack-Hartmann Wavefront Sensor.

Aperture Dimension (mm2)	7.73 × 7.73
Number of microlenses (µm)	14 × 14
Microlens step (µm)	0.552
Focus dynamic range (mm)	24.1
Wavefront dynamic on $Z_0^4$	5.4 λ
Photon number for optimal accuracy	200,000
Wavefront measurement accuracy	λ/70
Working wavelength range (nm)	400–800
Readout speed (MHz)	5
Electron-Multiplying gain	1–300