Alexa from ARRI is a range of 35mm-format digital cameras designed around a newly developed CMOS sensor. Compact and lightweight, the new range is intended for every level of production, with an entry-level model that utilizes a 16:9 sensor and the most advanced electronic viewfinder on the market, according to ARRI. A higher-end version includes a 4:3 sensor and a rotating mirror shutter linked to an optical viewfinder. Recording options, including several on-board solutions, simplify workflows and provide versatility both on-set and in post-production. Current owners of the D-21 digital camera have the option to upgrade packages and migration.