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ASI2600 Manual
6
4. QE Graph & Read Noise
QE and Read noise are the most important parts to measure the performance of a camera.
Higher QE and Lower read noise are needed to improve the SNR of an image.
For ASI2600MC Pro, the QE peak value is above 80%.
For ASI2600MM Pro, the QE peak value is around 91%.
(The QE curve of ASI2600MM Pro)
Read noise includes pixel diode noise, circuit noise and ADC quantization error noise. The lower
the better.
As you can see, the Read Noise of the ASI2600 camera is extremely low when compared with
traditional CCD cameras. In addition, it is with Built-in HCG mode, which can effectively reduce
read noise at high gain and keep the same wide dynamic range for this camera as at low gain.
Depending on your target, you can set the gain lower for higher dynamic range (longer exposure)
or set the gain higher for lower noise (such as short exposure or lucky imaging).
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