{"product_id":"camera-color-calibration-chart-camera-lens-calibration-board-18-degree-gray-test-chart-gray-scale-card-grayscale-chart","title":"Camera Colour and Grey Reference Cards - Options","description":"\u003cp\u003eUse a selected photographic reference card for consistent exposure or colour-checking workflows.\u003c\/p\u003e\u003ch2\u003ePractical details for your next task\u003c\/h2\u003e\u003cp\u003e✅ \u003cstrong\u003eReference choice\u003c\/strong\u003e - Select the grey, colour-chart or coloured target configuration required.\u003c\/p\u003e\u003ch3\u003eTechnical details\u003c\/h3\u003e\u003cp\u003eMultiple card types and sizes. Choose the exact variant. An 18% grey reference is not an 18-degree angle tool. 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