DSC Laboratories CamAlign Chip Chart GrayScale - 11 Step. HD-SD 16-9-4-3 Model GS-MAXI 40x24 101.6cmx61cm. CamAlign charts are designed and built to the highest quality standards. Mounted on sturdy aluminum backing with a flexible protective edging, every CamAlign is individually checked, calibrated, and rechecked. CamAligns were originally designed for the United States space program. to obtain the desired contrast ratio DSC developed the AcuFlect surface which provides at least two f-stops more dynamic range than standard test charts. Film studios and broadcasters soon discovered the CamAlign benefits of superb, consistent image quality and the rest is history.CamAligns are now used world wide, In the Lab camera evaluation and testing, In the Studio to set up and match cameras, On the Set as a production standard, In Post Production to optimize image quality. FeaturesShoot richer-looking PicturesOptimize tonal reproductionMake blacker blacksProvide neutral shadow detailsUse rain or shine, even underwaterProtect the environment aluminum and other materials in DSC charts are recycled