CHROMITE F2.8/12 mm
C-Mount SWIR lens
Key features
- For sensors up to 1/1.4"
- For pixel sizes down to 3.4 µm
- Optimized for WD 0.2 m to infinity
- VIS + NIR + SWIR without refocusing
Key features
Compact 1/1.4” C-Mount lens for VIS, NIR and SWIR imaging from 400 to 1800 nm without refocusing, combining high image quality with robust mechanical design.
This compact 1/1.4" C-mount lens is optically corrected for the entire 400–1800 nm wavelength range, allowing it to be used across the VIS, NIR and SWIR spectrum without any refocusing. Furthermore, it can be used across a very wide working distance range - from infinity down to 200 mm - while maintaining consistently high image quality across the entire sensor area. These characteristics make it ideally suited for use with Sony IMX 99x and similar sensors. Thanks to its renowned robust mechanical design, featuring stable locking mechanisms for both aperture and focus, the lens is also suitable for use in harsh environmental conditions.
Downloads
| Type [standard] | C |
| ID [standard] | 1109351 |
| Interface | C-Mount |
| Focal length [mm] | 12 |
| Aperture range F/# | F/2.8 ... F/22 |
| Numerical aperture [object | image] | - | 0.18 |
| Maximum sensor size [mm] | 11.4 |
| Maximum angle of view [°] | 51 |
| Recommended magnification range | -0.1 ... 0 |
| Recommended working distance range [mm] | 224 ... ∞ |
| Minimum working distance without extension tubes [mm] | 42 |
| Filter thread [mm] | M30.5x0.5 |
| Storage temperature [°C] | -25 … +70 |
| Net weight [g] | 105 |
| Additional info | - |
| f'eff [mm] | 11.98 |
| SF [mm] | 13.74 |
| S'F' [mm] | 13.99 |
| HH' [mm] | 18.50 |
| ß'P | 1.88 |
| SEP [mm] | 20.12 |
| S'AP [mm] | -8.54 |
| Σd [mm] | 42.22 |
| Specification | Description |
| Focal length | Nominal focal length |
| Aperture range F/# | Image space F-number range for infinity focus position |
| Numerical aperture | Maximum real numerical aperture (depending on recommended magnification range either for infinity or respective fixed magnification) |
| Max. sensor size | Image circle diameter |
| Max. angle of view | Angle of view associated with maximum sensor size (depending on recommended magnification range either for infinity or respective fixed magnification) |
| Rec. magnification range | Magnification range as recommended by Schneider-Kreuznach |
| Rec. working distance range | Working distance, i.e. distance between object and first mechanical element, associated with recommended magnification range |
| Net weight | Weight of unpacked lens without lens cap |
| f'eff | Effective focal length |
| SF | Distance between vertex of first lens surface and object space focal point |
| S'F' | Distance between vertex of last lens surface and image space focal point (back focal distance at infinity) |
| HH' | Distance between principal planes |
| ß'P | Pupil magnification (= exit pupil diameter / entrance pupil diameter) |
| SEP | Distance between vertex of first lens surface and entrance pupil |
| S'AP | Distance between vertex of last lens surface and exit pupil |
| Σ d | Distance between vertices of first and last lens surface |
| s'A | Flange focal distance (in air) for infinite object distance (depending on recommended magnification range either for infinity or respective fixed magnification) |
| ß' | Magnification (= image size / object size), negative value because image is inverted |
| OO' | Distance between object and image |
| Info | Unless otherwise stated all dimensions in this data sheet are in mm |

| Spectrum name | VIS & SWIR | |||||
| Wavelengths [nm] | 450 | 710 | 970 | 1230 | 1490 | 1750 |
| Rel. weights [%] | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 |
Maximise the potential of your industrial lens with our high-quality accessories including camera adapters, extension tubes and filter holders.
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