Designed and manufactured by Duclos Lenses, our Standard Distortion Chart is a simple tool for cinematographers and VFX specialists to collaborate with. It's an indispensable tool used by professionals and rental houses around the world. Fully functional for observing and recording distortion of spherical and anamorphic lenses alike. In a typical checkerboard layout, each square is precisely 1" x 1". Useful for evaluating barrel and pincushion as well as variations in anamorphic squeeze ratios throughout the image field. Printed in-house onto ultra-bright enhanced matte paper with our unique deep-black technique for excellent contrast and resolution.