40mm T1.3 Aizu Prime

Sigma 40mm T1.3 Aizu Prime Sitting in the sweet spot between traditional 35mm and 50mm focal lengths, the 40mm Aizu Prime offers a balanced field of view that feels both intimate and expansive. With its ultra-fast T1.3 aperture, this lens excels in controlled focus work, delivering beautiful separation and subtle compression while maintaining a natural, cinematic perspective. About Aizu Primes Sigma’s Aizu Prime series redefines practicality in cinema optics. As the world’s first large-format cine lens lineup to achieve a consistent T1.3 aperture across all focal lengths, Aizu Primes offer unmatched versatility and creative freedom. Designed exclusively for cinema and manufactured in Sigma’s state-of-the-art Aizu facility in Japan, these lenses deliver a beautifully balanced image—combining modern sharpness with a smooth, organic character. With compact, lightweight housings, extended data support, luminous engraved markings, and excellent close-focus performance, Aizu Primes are built for the demands of modern productions. Focus breathing is carefully suppressed, distortion is minimal, and performance remains consistent from 18mm to 125mm—setting a new standard for high-end cinematography.