Gretag-MacBeth color checker chart. You can find them on Ebay, but to get a decent price you may have to wait a while.
The problem with them is that you have to do a visual comparison/evaluation. No cold, clinical numbers to read out.
Gretag-MacBeth color checker chart. You can find them on Ebay, but to get a decent price you may have to wait a while.
The problem with them is that you have to do a visual comparison/evaluation. No cold, clinical numbers to read out.