@nprofile1q... @nprofile1q... I have a Sony NEX-5, and I use Darktable to open it's raw/.arw format images into GIMP. I certainly don't use all the possibilities of GIMP.
If you save your images as .jpg, you lose some of the dynamic range that is helpful in tough lighting situations.
(Later, I got two Sony a6300 bodies. The low noise performance is better for astrophotography, and one of them is modded with all the filters in front of the sensor removed...so the silicon chip can see visible, near IR and a bit of near UV...so then I slap on the desired bandpass filter. With the RGB filter array gone, it's a monochrome camera, and in my analog days I enjoyed black and white photography.)