3. QE Value & Read Noise
The QE value and readout noise are the most important parameters to measure camera
performance. Higher QE and lower readout noise are necessary to improve the image
signal-to-noise ratio.
We suppose the QE peak of ASI533 is above 80%.
Readout noise includes pixel noise, circuit noise, and ADC quantization noise. The lower the
readout noise, the better. As can be seen, compared with the conventional CCD camera, the
readout noise value of the ASI533 is very low, and as the gain value increases, the readout noise is
further reduced.
The parameter settings vary depending on your shooting target. If you turn down the gain, the
dynamic range will be larger (suitable for long exposure) or increase the gain, and the readout
noise will be further reduced (suitable for short exposure or fortunate imaging).
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