Sirui IronStar IRON-35-N 35mm
Combining a 1.5x anamorphic squeeze, constant T1.9 aperture, and 16-blade iris delivers oval bokeh and neutral flares on full-frame sensors. Interchangeable ARRI PL and Canon EF mounts, 270° focus rotation, and 0.8 MOD gears seamlessly integrate with follow-focus systems. This lens is ideal for independent filmmakers seeking clean, modern anamorphic widescreen footage free from heavy vintage tinting.
Focal length 35mm
Aperture f/16
Mount Interchangeable Mount with Included ARRI PL/Canon EF
Weight 998 g
lens type prime
40 Overall Score
Price $999
Snapshot
Pros & Cons
Pros
- Strong optical (79th percentile) 79th
Cons
- Below average build (18th percentile)
- Below average versatility (34th percentile)
The proof
Performance
Specifications
Full Specifications
Optics
| Type | Prime |
| Focal Length Min | 35 |
| Focal Length Max | 35 |
| Elements | 20 |
| Groups | 16 |
Aperture
| Max Aperture | f/16 |
| Min Aperture | f/1.9 |
| Constant | Yes |
| Diaphragm Blades | 16 |
Build
| Mount | Interchangeable Mount with Included ARRI PL/Canon EF |
| Format | full-frame |
| Weight | 1.0 kg / 2.2 lbs |
| Filter Thread | 92 |
AF & Stabilization
| Stabilization | No |
Focus
| Min Focus Distance | 650 |
| Max Magnification | 1:23.26 |
vs Competition
| Spec | Sirui IronStar IRON-35-N 35mm | Nikon NIKKOR Z 17-28mm f/2.8 | Tamron Di III 28-75mm f/2.8 VXD G2 | Sigma Contemporary 10-18mm f/2.8 DC DN | Panasonic Leica DG Vario-Elmarit H-ES12060 | Canon RF 28-70mm f/2.8 IS STM |
|---|---|---|---|---|---|---|
| Focal Length | 35mm | 17-28mm | 28-75mm | 10-18mm | 12-60mm | 28-70mm |
| Max Aperture | f/16 | f/2.8 | f/2.8 | f/2.8 | f/2.8 | f/22 |
| Mount | Interchangeable Mount with Included ARRI PL/Canon EF | Nikon Z | Sony E | Sony E | Micro Four Thirds | Canon RF |
| Stabilization | false | false | false | false | true | true |
| Weather Sealed | false | true | true | true | true | true |
| Weight (g) | 998 | 450 | 540 | 260 | 320 | 495 |
| AF Type | - | Stepping Motor | VXD | Autofocus | linear motor | STM |
| Lens Type | prime | zoom | zoom | zoom | zoom | zoom |
| Compare | Compare | Compare | Compare | Compare |
| Product | AF | Bokeh | Build | Macro | Optical | Aperture | Versatility | Stabilization |
|---|---|---|---|---|---|---|---|---|
| Sirui IronStar IRON-35-N 35mm | 54.6 | 56.4 | 18.2 | 50.8 | 78.8 | 45.9 | 33.6 | 38 |
| Nikon NIKKOR Z 17-28mm f/2.8 Compare | 87 | 88.1 | 73.6 | 86.3 | 87 | 85.8 | 68.1 | 38 |
| Tamron Di III 28-75mm f/2.8 VXD G2 Compare | 54.6 | 88.1 | 67.3 | 87.3 | 87.8 | 85.8 | 78.2 | 38 |
| Sigma Contemporary 10-18mm f/2.8 DC DN Compare | 54.6 | 83.5 | 87.4 | 93.3 | 81.6 | 85.8 | 69.1 | 38 |
| Panasonic Leica DG Vario-Elmarit H-ES12060 Compare | 98 | 88.1 | 83.2 | 50.4 | 90.2 | 85.8 | 93.1 | 83.2 |
| Canon RF 28-70mm f/2.8 IS STM Compare | 87 | 26 | 70.2 | 80.4 | 85 | 22.6 | 77.2 | 98.5 |
Price
Value & Pricing
From $999
B&H Photo 1 offer From $999
We started tracking prices for this product on May 22, 2026. The chart appears once we have more data.
Usage Scores
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.
