The SpyderCHECKR from Datacolor is a clever image colour correction tool, suitable for both home and design photography. Featuring 48 spectrally engineered colour patches including the standard 24 sRGB colour space plus additional colours for precise skin tone, medium saturation colour, near-white tints and black tones, for a more versatile range. The skin tone samples make it ideal for working with portrait or fashion photography it lets photographers colour calibrate their cameras, perform in-camera white balance and record known-colour samples.