Opteka Pocket-Sized Reference Color & White Balance Grey Card Set With Quick-Release Neck Strap

Pocket-Sized Colour Reference Set

The Opteka set provides three calibrated cards — white, grey and black — for photographers who need reliable in-camera white balance and post-production colour correction. Each card is pocket-sized for carry-along convenience and the kit includes a quick-release neck strap so the reference is always at hand during a shoot. The measured spectral neutrality suits both JPEG and raw workflows where consistent colour matters.

Spectrally Neutral Build With Quick-Release Strap

The cards are manufactured to tight tolerances and tested under varying light sources for uniformity across the surface. A quick-release neck strap attaches securely yet detaches in a single motion, letting you hold the card at the subject plane without fumbling. The compact format slips into a shirt pocket or camera bag compartment, keeping the reference clean and flat between uses.

Measured Lab And RGB Values For Accurate Correction

Under D50 standard illuminant the grey card records L* 63.8, a* -1.6, b* -0.4 on an X-Rite spectrophotometer, while RGB readings show 162, 162, 160 for grey, 220, 224, 223 for white and 16, 16, 15 for deep black. These published figures let you verify profiling results and achieve repeatable colour balance from capture through final output.