Laowa 12mm T2.9 Zero-d Cine The new 12mm lens is currently the widest T2.9 lens that can cover sensor up toboth full frame and vista vision size (wider than full frame), making it one of the ideal wide angle option for both professional cinema cameras and mirrorless cameras. Suitable for both Large format and Super35 cameras The image circle allows cinematographers to use not only on full frame sensors (Size = 43.14mm), but also able to fill the Vista Vision sensors on Red Monstro and the sensor on Arri Alexa Lf (Size open-gate = 44.7mm) fully. The lens is also ideal for Super35-sized camera owners with the ultra-wide 17mm equivalent field of view and its future-proof decision when cinematographers need to upgrade to large format cameras. Super compact and lightweight This 12mm lens is extremely compact and lightweight despite of the extreme specifications. It measures 3.4"" (87mm) long and weighs less than 1.5 lb (675g).