Sigma has officially introduced the Aizu Prime Line, a family of 12 full‑frame/large‑format cinema primes featuring a constant T1.3 aperture across every focal length—a first for any cine lens lineup.
Covering a 46.3 mm image circle, the range will eventually span 18 mm to 125 mm, but Sigma is rolling the glass out in two waves. The initial eight lenses (25 mm – 75 mm) are slated to ship first, with the ultra‑wide and telephoto options following later this year. All lenses come in PL and Sony E mounts and keep weights in the 1.6 – 1.7 kg bracket—light enough for gimbal or handheld work despite their speed.
Optically, the Aizu Primes are new designs rather than rehoused photo lenses. Sigma says they combine “modern sharpness” with an “organic, naturally soft look,” while controlling distortion and focus breathing to suit demanding cinema workflows. The company also hints that lessons learned here may influence future ultra‑fast still‑photo glass.
Price & Availability
Each Aizu Prime is expected to retail at $8,299 USD, with shipments beginning in August 2025 for the first eight focal lengths; the remaining four should follow before year’s end.
With a unified T1.3 aperture, matched mechanics, and full‑frame coverage, Sigma’s Aizu Prime Line positions itself as a versatile, cost‑competitive alternative to established high‑speed cinema sets—one that’s likely to attract indie productions and studio shooters alike.
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