SIGMA has been making cinema lenses for years, but the Aizu Prime Line represents a continued refinement of that experience. Introduced in 2025, the Aizu were designed not as tools, but as a commitment to filmmakers who seek beauty in imagery. They combine SIGMA’s renowned resolving power with delicate character and an image that feels at home in artistic, narrative filmmaking.
The result is a modern cinema lens set that prioritizes both performance and personality. If you were apprehensive about the sharpness in the previous cinema line, it’s still there, but massaged in with extra bits of loveliness that paint the image instead of capturing it. A sight to behold. Now, SIGMA is expanding the family with three new focal lengths: 21mm, 100mm, and 125mm.
Three New Aizu Primes
The new 21mm, 100mm, and 125mm primes slot naturally into the existing lineup, adding more versatility to an already capable range. This isn’t a surprise drop as SIGMA HQ made it known from the very beginning that they intended to fill the line with more focal lengths beyond the ones introduced at launch. With a much fuller set, cinematographers have more reason to jump into the Aizu ecosystem to handle practically any production.
The 21mm provides a wider perspective for expansive environments, interiors, and immersive compositions, while the 100mm and 125mm extend the lineup into longer focal lengths for tighter framing and increased subject isolation.
The 125mm is perhaps the most interesting choice of the three, in my opinion. Rather than opting for the more traditional 135mm focal length found in many cinema lens sets, SIGMA chose 125mm. It’s not groundbreaking, but a little sidestep from the normal has me wondering if maybe the engineers did have some fun with developing these. I hope so. Merciful too it seems as pulling focus wide-open on any lens, especially telephotos, is as much of an adrenaline rush as tap dancing through a mine field.
Of course, the new focal lengths retain the core characteristics of the Aizu line. They match the existing lenses in design, maximum T1.3 aperture, large-format coverage, and overall performance, making them a seamless expansion of the set. Below is a table with key specs and how the three new lenses compare to close focal lengths within the Aizu lineup.
| Lens | Aperture | Front Diameter | Length | Weight | Close Focus |
|---|---|---|---|---|---|
| 21mm | T1.3 | 95mm | 120.1mm/4.8″ | 1.6kg/3.6lb | .35m/1’2″ |
| 25mm | T1.3 | 95mm | 125mm/5″ | 1.7kg/3.7lb | .31m/1′ |
| 27mm | T1.3 | 95mm | 125.4mm/5″ | 1.7kg/3.6lb | .33m/1’1″ |
| 75mm | T1.3 | 95mm | 128.1mm/5.1″ | 1,7kg/3.8lb | .73m/2’5″ |
| 100mm | T1.3 | 95mm | 144mm/5.7″ | 2.2kg/4.9lb | 1m/3’4″ |
| 125mm | T1.3 | 95mm | 152.8mm/6.1″ | 2.2kg/4.9lb | 1.25m/4’2″ |
Why choose the Aizu
The appeal of the Aizu Primes comes from their balance of technical performance and cinematic character. SIGMA cinema lenses have long been known for their impressive resolving power, almost to a fault, with some finding them simply too sharp. They took time considering the needs of cinematographers across the spectrum of shooting styles and with delicate craftsmanship, tailored these lenses to contain the essentials for cinema.
The result is a set of modern lenses that can deliver plenty of detail without feeling clinical. A consistent T1.3 maximum aperture across the range also gives cinematographers plenty of control over exposure and depth of field while maintaining consistency throughout a lens change. Not to mention peace of mind that comes from genuine Japanese quality.
Price and availability
With these three additions, the Aizu Prime Line continues to grow into a versatile set of modern cinema lenses built around SIGMA’s dedicated approach to image making. The Aizu 21mm, 100mm, and 125mm primes are expected to begin shipping in November 2026 with preorders for both PL and E-mount variants now open through our shop.
