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Hi Joylon and Cedric,

Thankyou so much for this excellent software. I just tried to calibrate my camera using colour chart method. However, I had Spyderchekr 24 color card instead of the default Xrite one provided. I used the reflectance values of Xrite for calibration assuming the standards should be…. well standard and shouldn\’t vary across brand (It\’s a very crude assumption indeed). I got all R^2  values above 0.99. Does this mean I am good to go or R^2 values only show how good the reflectance measurements are?

Calibrating with color chart
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