Rapid progress in lens design and manufacturing technology has finally realized a cinematographer's dream: lenses that are fast and yet have an optical performance surpassing all current standard speed primes. Whenever and wherever you want to shoot, the Master Primes open up new creative opportunities since they maintain their optical performance across the whole extended T-stop range from T1.3 to T22. Whether you shoot a day/exterior commercial with vibrant colors and high contrast, or a night/ interior romantic candlelit dinner for a feature, the Master Primes are a truly universal set of lenses, usable in all lighting conditions.