black and white camera calibration chessboard

{"cid":"91225766","title":"Black And White Checkerboard Calibration Target \/ Camera Calibration Chessboard","imgUrl":"https:\/\/img.chinax.com\/nimg\/c7\/7b\/71574c7ad4936f20d8e161297cb8-200x200-1.jpg","attrs":{"Brand Name":"DFOPTIX","Minimum Order Quantity":"1","Delivery Time":"5 Work Days","Certification":"ISO9001","Payment Terms":"T\/T","Specification":"The Precision Can Reach 1um, And The Size Can Be Customized Up To 1.68*3500mm According To Different Materials","Shipping Option":"FedEx and UPS","Place of Origin":"China","Packaging Details":"Carton boxes, plastic sponge boxes, customized wooden boxes, etc","Material":"Glass, Ceramic, Film, Aluminum Can Be Customized","Supply Ability":"The average monthly production capacity for calibration plates and film is 300,000 pieces"}}

{"cid":"91165254","title":"Sony SMT Feeder Calibration Precise XY Axis Adjustment For Gak Feeder","imgUrl":"https:\/\/img.chinax.com\/nimg\/1a\/34\/d3b85835b6af3d98ee3b5ef1258b-200x200-1.jpg","attrs":{"Brand Name":"Sony","Model Number":"None","Minimum Order Quantity":"1pcs","Delivery Time":"Within 3days After Payment","Place of Origin":"China","Payment Terms":"T\/T, Western Union, ","Packaging Details":"wooden Case","Brand":"Sony","Machine Model":"Standard","Part Name":"Feeder Calibration","Part Number":"None","Use":"For GAK Feeder","Condition":"Original New"}}