SIGMA has expanded its Aizu Prime cinema lens lineup with the addition of three new focal lengths: 21mm T1.3 LF, 100mm T1.3 LF, and 125mm T1.3 LF. Announced in June 2025, the Aizu Prime series is designed for large-format cinema production, offering consistent T1.3 aperture across its range to ensure uniform exposure and depth of field control when switching lenses.

The new additions fill key gaps in the lineup, providing creators with wider and telephoto options while maintaining the series’ optical consistency. The 21mm offers an expansive field of view ideal for environmental storytelling and tight interior shots, while the 100mm and 125mm lenses cater to portrait, detail, and compressed perspective work commonly used in narrative filmmaking and high-end content creation.

All lenses in the Aizu Prime series share a common front diameter, gear positioning, and focus/iris rotation, streamlining workflows on set by minimizing the need for rig adjustments when changing lenses. This design benefit is particularly valuable for solo creators and small production teams aiming to maintain efficiency during shoots.

Built for large-format sensors, the Aizu Prime lenses deliver high resolution, minimal distortion, and pleasing bokeh characteristics, making them suitable for cinema cameras capturing 6K and 8K content. The T1.3 aperture allows for strong low-light performance and shallow depth of field, supporting cinematic aesthetics without requiring excessive lighting setups.

SIGMA’s expansion of the Aizu Prime line reflects a growing demand among content creators for affordable, high-performance cinema lenses that match the visual standards of premium productions. By standardizing key mechanical and optical traits across the lineup, SIGMA aims to reduce barriers for creators investing in a cohesive lens ecosystem.

The 21mm, 100mm, and 125mm T1.3 LF lenses are now available as part of the 12-lens Aizu Prime series, which spans from 18mm to 125mm. Pricing and regional availability details were not included in the source announcement. Creators are encouraged to consult authorized SIGMA dealers for specific release timelines and compatibility with their camera systems.