Large size projection screen designed for high resolution projection with a perfectly flat surface. Larger installations often use high resolution projectors and for high resolution projection we recommend to use HD Progressive projection surfaces. Projecta expands the range of tab-tensioned projection screens up to a width of 600 cm. The Extensa is a new projection screen for medium to large rooms with a tab-tensioned projection surface. The tensioning cable system prevents warping and ensures even lateral tension for a perfectly flat viewing area.