I think that most DSLR of today have 12bits per channel, not 16, never 32. but you are right for the rest. 4 more bits open you a world of other color
2^8 = 256 combinations 2^12 = 4096 combinations and this is for each channel (RBG) the total is 256*256*256 = 16.777.216 of possible rendered colors 4096*4096*4096 = 68.719.476.736 colors yes you loose a bit converting in 8 bits (pun intended) bye Danilo.
