Sony IMX291 · 2.1MP 1/2.8" rolling-shutter CMOS image sensor
IMX291 Sensor Specifications & Compatible M12 and C-Mount Lenses
IMX291 is a Sony 1/2.8-inch rolling-shutter CMOS image sensor in the STARVIS family, tuned for low-light and NIR work. It runs 1920x1080 (2.1 MP) at 120 fps across MIPI CSI-2, LVDS, or parallel interfaces, with 2.9 um pixels on a 6.39 mm diagonal. The table below lists every Commonlands M12 Lens that covers its 6.39 mm image circle, with the field of view each produces on this sensor.
IMX291 specifications
| Part number | IMX291 |
|---|---|
| 製造元 | ソニー |
| Family | STARVIS |
| 決議 | 1920×1080（2.1 MP） |
| 光学フォーマット | 1/2.8インチ |
| Active area | 5.57 × 3.13 mm |
| Sensor diagonal | 6.39 mm |
| ピクセルサイズ | 2.9 µm |
| シャッター | ローリング |
| 最大フレームレート | 120 fps |
| インターフェース | MIPI CSI-2 / LVDS / パラレル |
| Color / mono | Color |
| 近赤外応答 | Enhanced near-infrared |
Manufacturer datasheet: Sony IMX291 product page
Lens selection for the IMX291 with calculated field of view
Each field of view below is calculated for the IMX291 active area (5.57 × 3.13 mm) from Commonlands’ per-lens field-of-view data, which reflects each lens’s real distortion rather than a focal-length-only estimate. Alongside the horizontal, vertical, and diagonal field of view, each row lists focal length, mount, aperture (F#), and coverage. Follow the product links for distortion, ingress protection, dimensions, and resolution specifications. Coverage compares the lens image circle with the 6.39 mm sensor diagonal. Entries marked Circular image do not cover the full diagonal; part of the sensor lies outside the image circle. Run working-distance and object-size numbers through the field of view calculator.
Engineering picks for the IMX291
- Best ~30° HFoV: Telephoto 10.4mm M12 Lens (CIL104) (10.4 mm, f/3.8). Why: the closest covering option to 30° horizontal, chosen for tight inspection framing and long read ranges. Field of view on the IMX291: 30° H × 17.1° V (34.2° diagonal). The image circle covers the full sensor (rectilinear estimate, computed 2026-07-02).
- Best ~60° HFoV: 4.9mm C-Mount Lens (CIL505) (4.9 mm, f/2.2). Why: the closest covering option to 60° horizontal, chosen for general-purpose machine-vision framing. Field of view on the IMX291: 59.2° H × 35.4° V (66.2° diagonal). The image circle covers the full sensor (rectilinear estimate, computed 2026-07-02).
- Best ~120° HFoV: Low Distortion 1.8mm M12 Lens (CIL018) (1.8 mm, f/2.8). Why: the closest covering option to 120° horizontal, chosen for wide navigation and room-scale coverage. Field of view on the IMX291: 114.2° H × 82° V (121.2° diagonal). The image circle covers the full sensor (rectilinear estimate, computed 2026-07-02).
- Lowest distortion: Low Distortion 4.4mm M12 Lens (CIL043) (4.4 mm, f/3.2). Why: measured -0.5% TV distortion, the flattest image among covering lenses. Field of view on the IMX291: 64.7° H × 39.2° V (72° diagonal). The image circle covers the full sensor (rectilinear estimate, computed 2026-07-02).
- Best low light: 8mm C-Mount Lens (CIL521) (8 mm, f/1.5). Why: the fastest covering aperture (f/1.5), which collects the most light per pixel. Field of view on the IMX291: 38.4° H × 22.1° V (43.5° diagonal). The image circle covers the full sensor (rectilinear estimate, computed 2026-07-02).
Find a lens for the IMX291 in the M12 Lens collection or the C-Mount Lens collection. The covering options below run from 1.8 mm to 100 mm focal length and span 3.2° to 114.2° horizontal field of view on the IMX291 active area.
| Commonlands Lens | Focal Length | マウント | F# | Horizontal FoV | Vertical FoV | Diagonal FoV | Coverage |
|---|---|---|---|---|---|---|---|
| Low Distortion 1.8mm M12 Lens (CIL018) | 1.8 mm | M12 | f/2.8 | 114.2° | 82° | 121.2° | Covers |
| Low Distortion 2.2mm M12 Lens (CIL023) | 2.2 mm | M12 | f/2.2 | 103.4° | 70.9° | 110.9° | Covers |
| Low Distortion 2.6mm M12 Lens (CIL028) | 2.6 mm | M12 | f/2.6 | 93.9° | 62.1° | 101.7° | Covers |
| Low Distortion 2.7mm M12 Lens (CIL027) | 2.7 mm | M12 | f/2.8 | 91.8° | 60.2° | 99.6° | Covers |
| Low Distortion 2.8mm M12 Lens (CIL093) | 2.8 mm | M12 | f/2.4 | 89.7° | 58.4° | 97.5° | Covers |
| Low Distortion 3mm M12 Lens (CIL030) | 3 mm | M12 | f/2.1 | 85.7° | 55.1° | 93.6° | Covers |
| 4mm C-Mount Lens (CIL529) | 4 mm | Cマウント | f/2.8 | 69.7° | 42.7° | 77.2° | Covers |
| Low Distortion 4.2mm M12 Lens (CIL042) | 4.2 mm | M12 | f/1.9 | 67.1° | 40.9° | 74.5° | Covers |
| Low Distortion 4.4mm M12 Lens (CIL043) | 4.4 mm | M12 | f/3.2 | 64.7° | 39.2° | 72° | Covers |
| 4.9mm C-Mount Lens (CIL505) | 4.9 mm | Cマウント | f/2.2 | 59.2° | 35.4° | 66.2° | Covers |
| Low Distortion 5.2mm M12 Lens (CIL052) | 5.2 mm | M12 | f/3.4 | 56.3° | 33.5° | 63.1° | Covers |
| 5.7mm M12 Lens (CIL857) | 5.7 mm | M12 | f/3 | 52.1° | 30.7° | 58.5° | Covers |
| Low Distortion 5.9mm M12 Lens (CIL059) | 5.9 mm | M12 | f/1.7 | 50.5° | 29.7° | 56.9° | Covers |
| 6mm M12 Lens (CIL061) | 6 mm | M12 | f/1.9 | 49.8° | 29.2° | 56.1° | Covers |
| Low Distortion 6.2mm M12 Lens (CIL062) | 6.2 mm | M12 | f/2.8 | 48.4° | 28.3° | 54.5° | Covers |
| 7.2mm M12 Lens (CIL872) | 7.2 mm | M12 | f/2.8 | 42.3° | 24.5° | 47.9° | Covers |
| 7.8mm M12 Lens (CIL078) | 7.8 mm | M12 | f/2 | 39.3° | 22.7° | 44.5° | Covers |
| 8mm C-Mount Lens (CIL521) | 8 mm | Cマウント | f/1.5 | 38.4° | 22.1° | 43.5° | Covers |
| 8.1mm M12 Lens (CIL083) | 8.1 mm | M12 | f/2.8 | 37.9° | 21.9° | 43.1° | Covers |
| 8.2mm M12 Lens (CIL085) | 8.2 mm | M12 | f/3 | 37.5° | 21.6° | 42.6° | Covers |
| 8.5mm C-Mount Lens (CIL508) | 8.5 mm | Cマウント | f/2.4 | 36.3° | 20.9° | 41.2° | Covers |
| 9.1mm M12 Lens (CIL092) | 9.1 mm | M12 | f/2.6 | 34° | 19.5° | 38.7° | Covers |
| Telephoto 10.4mm M12 Lens (CIL104) | 10.4 mm | M12 | f/3.8 | 30° | 17.1° | 34.2° | Covers |
| Telephoto 12mm M12 Lens (CIL122) | 12 mm | M12 | f/2 | 26.1° | 14.9° | 29.8° | Covers |
| 12mm C-Mount Lens (CIL552) | 12 mm | Cマウント | f/2.8 | 26.1° | 14.9° | 29.8° | Covers |
| Telephoto 12.2mm M12 Lens (CIL120) | 12.2 mm | M12 | f/2.2 | 25.7° | 14.6° | 29.4° | Covers |
| Telephoto 12.5mm M12 Lens (CIL125) | 12.5 mm | M12 | f/2.4 | 25.1° | 14.3° | 28.7° | Covers |
| Telephoto 14.2mm M12 Lens (CIL142) | 14.2 mm | M12 | f/2.6 | 22.2° | 12.6° | 25.4° | Covers |
| Telephoto 16mm M12 Lens (CIL160) | 16 mm | M12 | f/1.9 | 19.7° | 11.2° | 22.6° | Covers |
| 16mm C-Mount Lens (CIL553) | 16 mm | Cマウント | f/2.8 | 19.7° | 11.2° | 22.6° | Covers |
| Telephoto 18mm M12 Lens (CIL178) | 18 mm | M12 | f/2 | 17.6° | 9.9° | 20.1° | Covers |
| Telephoto 19mm M12 Lens (CIL190) | 19 mm | M12 | f/2 | 16.7° | 9.4° | 19.1° | Covers |
| Telephoto 21.6mm M12 Lens (CIL121) | 21.6 mm | M12 | f/2.8 | 14.7° | 8.3° | 16.8° | Covers |
| Telephoto 25mm M12 Lens (CIL250) | 25 mm | M12 | f/2 | 12.7° | 7.2° | 14.6° | Covers |
| 25mm C-Mount Lens (CIL554) | 25 mm | Cマウント | f/2.6 | 12.7° | 7.2° | 14.6° | Covers |
| Telephoto 35mm M12 Lens (CIL350) | 35 mm | M12 | f/2.4 | 9.1° | 5.1° | 10.4° | Covers |
| 35mm C-Mount Lens (CIL555) | 35 mm | Cマウント | f/2.6 | 9.1° | 5.1° | 10.4° | Covers |
| Telephoto 50mm M12 Lens (CIL051) | 50 mm | M12 | f/2.8 | 6.4° | 3.6° | 7.3° | Covers |
| 50mm C-Mount Lens (CIL556) | 50 mm | Cマウント | f/2.8 | 6.4° | 3.6° | 7.3° | Covers |
| Telephoto 75mm M12 Lens (CIL076) | 75 mm | M12 | f/3.4 | 4.3° | 2.4° | 4.9° | Covers |
| 75mm C-Mount Lens (CIL557) | 75 mm | Cマウント | f/3 | 4.3° | 2.4° | 4.9° | Covers |
| Telephoto 100mm M12 Lens (CIL100) | 100 mm | M12 | f/3.6 | 3.2° | 1.8° | 3.7° | Covers |
Covers in the table means the lens image circle is at least as large as the 6.39 mm sensor diagonal. Confirm corner illumination and MTF at your aperture, wavelength, and working distance. A complete circular fisheye image fits inside the sensor only when its diameter is no larger than the sensor's short side. Need a focal length or coverage that is not listed here? Ask our engineers to confirm a match.
How to choose a lens for the IMX291
Start from the field of view and working distance your application needs. Confirm that the lens image circle covers the active sensor diagonal and that the mount provides the required focus travel and rear clearance. A lens megapixel rating alone does not establish resolution on this sensor. Compare measured MTF at the spatial frequencies your task needs, at the intended aperture, wavelength, distance, and field position, accounting for the 2.9 µm pixel pitch. Estimate framing with the Commonlands field of view calculator.
Sourcing a camera module around the IMX291? Commonlands manufactures M12 lenses and C-mount lenses and ships from San Diego, with same-day shipping on in-stock lenses ordered before 12 PM PST. We also design and build custom MIPI CSI-2 camera modules that integrate the lens, the IMX291 sensor, and the carrier board, available from 1,000 units per year, and assemble consigned IMX291 boards with Commonlands lenses in our San Diego ISO 6 cleanroom from 100 to 100,000 units per year. Talk to an applications engineer.
Related guides and tools
IMX291 lens and camera module FAQ
What lens fits the IMX291 sensor?
A lens match requires sufficient image-circle coverage, suitable MTF, and mechanical clearance. Use the coverage column and calculated field of view to shortlist lenses, then verify the operating conditions on each product page.
What is the IMX291 sensor size?
The IMX291 is a 1/2.8" format sensor with a 5.57 × 3.13 mm active area and a 6.39 mm diagonal, built on 2.9 µm pixels at 1920x1080 resolution.
Does Commonlands build a custom MIPI camera module for the IMX291?
Yes. Commonlands designs and builds custom MIPI CSI-2 camera modules that integrate the lens, the IMX291 sensor, and the carrier board, available from 1,000 units per year with active lens-to-sensor alignment and 100% MTF testing. Consigned assembly of your IMX291 boards with Commonlands lenses runs from 100 to 100,000 units per year in our San Diego ISO 6 cleanroom. Talk to an applications engineer to scope a module.
Match a lens to your IMX291 camera
Get an engineer-verified lens recommendation for your sensor, format, and field of view.
Contact Commonlands engineering