2022-12-01, 10:27 PM
Below is the relative spectral sensitivity curve for the IMX571 sensor. To convert this to absolute values, we multiply each relative value from the graph by the maximum QE, which is 80, and then divide by 100. For example, at 550 nm, we read 75 from the graph, multiplied by 80/100 gives us 60. So we enter 60 at 550 nm. Repeat that for each of the sample wavelengths.
I suspect the your issue is more about the Gain settings. There are gain graphs outlined here:
https://www.aliexpress.us/item/225580117..._shipto=US
Pick some Gains that are practical to use under different circumstances. Beware that the Full Well in these graph is not the true, physical, Full Well, which is what SkyTools needs to know. Its more of a "practical" or "effective" full well value that takes into account dynamic range clipping from the number of bits used in the calculations. It looks like the unity gain is around a gain value of 114.
I suspect the your issue is more about the Gain settings. There are gain graphs outlined here:
https://www.aliexpress.us/item/225580117..._shipto=US
Pick some Gains that are practical to use under different circumstances. Beware that the Full Well in these graph is not the true, physical, Full Well, which is what SkyTools needs to know. Its more of a "practical" or "effective" full well value that takes into account dynamic range clipping from the number of bits used in the calculations. It looks like the unity gain is around a gain value of 114.
Clear skies,
Greg
Head Dude at Skyhound
Greg
Head Dude at Skyhound


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