An easier win for the saturation issue might come when we are able to integrate the raspberry High-Q camera into the OpenFlexure software. I understand that it has not got the offset lenslet array, so it should not suffer from this strong colour saturation issue. That option is still some way off as it needs the next version of the main microscope server in order to talk to the HQ camera, and we would also want to crop the live image.
I am cross-linking this thread to @Yashka’s elegant idea of using a phone screen to provide a colour calibration standard. https://openflexure.discourse.group/t/first-build-basic-low-cost-microscope-v7-0-0-beta1/1365/10. I wonder whether that would also work well for your images here?
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For some reason, after stopping for a year, I still haven’t resolved this issue. Now I need to work on it again. First, I will test @Yashka’s elegant idea, but currently, I’m only getting a blacked-out image when placing an iPhone (with a white screen) on the microscope. Any suggestions would be appreciated.
It’s worth manually maxing out the camera gain and exposure time (8 and 32000 respectively), and double checking that your phone screen is set to white and max brightness. You’ll probably have to adjust the focus a fair bit, but if have thought you should still see something without that.
What optics are you using?