The Spyder Checkr Photo White Balance Card pairs a spectrally neutral white target with an integrated multi-step grayscale strip — giving you precise white balance and tonal evaluation in one compact card. Set custom white balance directly in-camera with a single reference shot, eliminating color casts at the source — no guessing, no endless slider adjustments in Lightroom or Capture One. The integrated grayscale strip lets you evaluate highlight and shadow detail right on set before leaving the location. Compact and universally compatible with any DSLR, mirrorless, or video camera under daylight, tungsten, fluorescent, LED, and mixed lighting. Simply photograph the card, apply the reference in your editing software, and fine-tune tonal values as needed.