Color Checker Physical Reference?

Hi Alex,

Thanks for the latest update! Your work really reignited my love for digital photography!

I would like to use your color checker references to control the output of my camera (RX100VI).

In the welcome guide manual pdf you write „take a picture with the color checker underneath it“

Are you referring to the color checker as a physical objec here? Or a representation on a screen or a print out?

To be the most precise I assume one would have to buy the same color checker card product you use in you’re references? Or could it also be a different product?

thank you for advice on this detail :)