Sigma Aizu Prime 21mm, 100mm, and 125mm T1.3 Lenses Arrive in November – Lineup Grows to 11

Lens News

by Johnnie BehiriSeptember 1^st, 2026

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Sigma has put a date on the next expansion of its Aizu Prime Line. The 21mm T1.3 LF, 100mm T1.3 LF, and 125mm T1.3 LF will launch in November 2026 in PL and Sony E-mount, growing the large-format cine lens family to eleven. That leaves exactly one focal length missing before the set Sigma promised last year is complete.

The Aizu Prime Line was introduced in June 2025 as a planned system of twelve large-format cine lenses spanning 18mm to 125mm, all with a constant T1.3 aperture, which Sigma claimed at the time made it the first large-format lineup to hold that speed across every focal length. The first eight lenses, covering 25mm through 75mm, shipped in 2025. Shortly after the launch, Johnnie sat down with Sigma CEO Kazuto Yamaki at Cine Gear to talk about the thinking behind the series; you can revisit that conversation here. Now, Sigma has confirmed that three of the four remaining focal lengths are arriving this November.

The wide end and the long end fill out

The 21mm T1.3 LF addresses the wide end of the system, sitting between the already shipping 25mm and the still unreleased 18mm, and it focuses down to 0.35 m (1’2″), close enough to put an 82-degree field of view right on top of a subject. The 100mm T1.3 LF and 125mm T1.3 LF are the more consequential additions for many shooters, since fast telephoto cine primes are where most manufacturer lineups thin out. A 125mm at T1.3 covering large format is a rare combination, and portrait and commercial cinematographers who have been working with the 75mm as their longest Aizu option finally get genuine telephoto reach without changing the look of the set. Minimum focus sits at 1 m (3’4″) on the 100mm and 1.25 m (4’2″) on the 125mm.

According to Sigma, consistency is the point of the whole exercise: the company says color balance, contrast, and flare behavior are matched across all eleven lenses, so material cut between the 21mm and the 125mm should grade as one family. Sigma also states that distortion and focus breathing are kept to a minimum throughout the line.

Size, weight, and mechanics

The mechanical package will feel familiar to anyone who has handled the first eight lenses. All three new primes stop down from T1.3 to T22 through a 13-blade iris, and they share the 270-degree focus rotation and 70-degree iris rotation of the rest of the line. The 21mm keeps the 95 mm (3.7″) front diameter of the existing set and weighs 1.6 kg (3.6 lb) in PL mount at 120.1 mm (4.8″) long, so it slots into current Aizu builds without new rings or brackets.

The telephotos ask a little more of your rig. The 100mm stays with the 95 mm front but grows to 144 mm (5.7″) and 2.2 kg (4.9 lb) in PL, while the 125mm steps up to a 114 mm (4.5″) front diameter at 152.8 mm (6.1″) and the same 2.2 kg (4.9 lb). Sony E-mount versions run 34 mm longer and 100 g heavier across the board, a consequence of the shorter flange distance being made up inside the barrel. Anyone with a matte box or clamp-on setup built around the 95 mm standard of the other ten lenses will need an adapter ring or a rethink for the 125mm. Sigma ships the 21mm with its SF-61 support foot and the two telephotos with the larger SF-71, along with the matching LCC-95 II or LCC-114 II cover cap and LCR III rear cap. None of the three takes screw-in filters.

Coverage, mounts, and metadata

Like the rest of the line, the three new lenses carry a φ46.3mm image circle. That covers full-frame and Super 35 comfortably and extends to larger sensors such as the ARRI ALEXA LF in Open Gate and VistaVision-sized formats. If you want to check how that image circle relates to a specific camera and recording mode, our lens coverage tool includes the existing Aizu Primes.

Both mount options from the original release carry over, with a difference in how metadata flows depending on which one you pick. The PL versions output Cooke /i Technology combined with ZEISS eXtended Data, either through an /i-compatible lens mount or a 4-pin LEMO connector, and Sigma says the system supports exporting distortion and shading correction data for VFX pipelines. The Sony E-mount versions, built under license from Sony, instead speak the E-mount communication protocol and record lens metadata directly to compatible bodies. For a set that is likely to end up in rental houses serving commercial and episodic work, that metadata story matters as much as the optics. Sigma notes that appearance and specifications may still change before launch.

One lens still to come

With the 21mm, 100mm, and 125mm dated, the 18mm announced as part of the original twelve-lens plan remains the only Aizu Prime without a schedule. Sigma’s press text describes the current release as bringing the lineup to eleven lenses and continues to frame the system as covering 18mm to 125mm, so the plan appears unchanged, just not yet dated. Sigma builds all of these lenses at its factory in Aizu, Japan, the facility the line is named after and one we have visited and written about before.

Price and availability

The 21mm T1.3 LF, 100mm T1.3 LF, and 125mm T1.3 LF launch in November 2026 in PL and Sony E-mount, priced at $9,799 each at B&H. That puts the three new focal lengths $1,500 above the $8,299 the first eight Aizu Primes listed for at their Cine Gear 2025 debut, a premium of roughly 18% for the more demanding wide and telephoto designs. Full details are on Sigma’s cine lens page, and you can order the new lenses at B&H.

Are the 21mm, 100mm, and 125mm the lenses that make the Aizu Prime set complete enough for your work? Don’t hesitate to let us know in the comments below!