Professional colorists wouldn’t be nearly as effective if they had to rely on a keyboard and mouse. Instead, they use specifically designed panels. Here is a review of an entry-level panel for color grading from BlackMagic Design.
You can get the BlackMagic Micro Panel on BH Photo Video, Adorama, Henry’s, eBay, Amazon, Amazon Germany
Here is where you can get the BlackMagic Mini Panel: BH Photo Video, Adorama, Henry’s, eBay, Amazon
We still have not had the chance to review them, but here are two alternatives from Tangent:
Tangent Element Mf Panel on BH Photo Video, Adorama, eBay, Amazon
Tangent Element Tk Panel on BH Photo Video, Adorama, eBay, Amazon