how to know, 8 bit or 10 bit

[Chuck Z]

Couldn't you create a gradient ramp in Photoshop, convert it into a short 10-bit video clip and feed it to your external display? If you display is 10-bit, but your signal is only 8-bit, you should see the banding steps.

 

[Alexander Ibrahim]

Couldn't you create a gradient ramp in Photoshop, convert it into a short 10-bit video clip and feed it to your external display? If you display is 10-bit, but your signal is only 8-bit, you should see the banding steps.

I think we are testing a camera not a video i/o card.

As far as I know all the video i/o cards are pretty clear about their specifications.

So the bit about lighting a smooth white card is the real world gradient.