Optotune - ELM-F
Electrically tunable C mount lenses for fast focus adjustment in compact machine vision systems.
Key Features
- Sensor size: up to 1.1"
- Image circle: 18 mm
- Resolution: supports 2.74 µm pixel pitch
- Focal length: 12, 16, 25 mm
- Camera mount: C-Mount
- Distortion: <3.7% (varies by model)
- Aperture: F3.1, F3.2, F3.7, F4.0 (varies by model)
- Aperture control: Fixed
- Working Distance: 200 mm to Infinity
- Focus control: Electrically tunable
- Wavelength range: 420-900 nm
- Relative illumination: >71% (varies by model)
- Length: <129 mm (varies by model)
- Diameter: <63 mm (varies by model)
- Weight: <555 g (varies by model)
Find the right model for your needs
Use the filters below to narrow down your selection based on your application requirements
| Nom de produit | Aperture | Camera mount (optics) | Focal length (mm) | Manufacturer | Min. pixel size | Sensor format | Useful Range (nm) |
|---|---|---|---|---|---|---|---|
| F 3.7 | C-Mount | 24.5 | Optotune | 2.74 µm | 1.1" | 420 - 900 | |
| F 4 | C-Mount | 12.9 | Optotune | 2.74 µm | 1.1" | 420 - 900 | |
| F 3.1 | C-Mount | 16.3 | Optotune | 2.74 µm | 1.1" | 420 - 900 | |
| F 4 | C-Mount | 16.3 | Optotune | 2.74 µm | 1.1" | 420 - 900 | |
| F 3.2 | C-Mount | 24.5 | Optotune | 2.74 µm | 1.1" | 420 - 900 | |
| F 2.8 | C-Mount | 12 | Optotune | N/A | 1.1" | 400 - 700 | |
| F 5.6 | C-Mount | 46.4 | Optotune | 2.74 µm | 1.1" | 420 - 900 | |
| F 2.8 | C-Mount | 25 | Optotune | N/A | 1.1" | 486 - 656 | |
| F 5.6 | C-Mount | 16 | Optotune | N/A | 2/3" | 486 - 656 | |
| F 3.5 | C-Mount | 46.4 | Optotune | N/A | 1.1" | 420 - 900 | |
| F 4 - F 32 | C-Mount | 80 | Optotune | 5 µm | 4/3" | 425 - 675 | |
| F 5.6 | C-Mount | 8 | Optotune | 3.45 µm | 2/3" | 486 - 656 | |
| F 3.2 | C-Mount | 35 | Optotune | 2.74 µm | 1.1" | 420 - 900 | |
| F 4 | C-Mount | 12.9 | Optotune | 2.74 µm | 1.1" | 420 - 900 | |
| F 5.4 | C-Mount | 35 | Optotune | 2.74 µm | 1.1" | 420 - 900 | |
| F 3.1 | C-Mount | 16.3 | Optotune | 2.74 µm | 1.1" | 420 - 900 | |
| F 4 | C-Mount | 16.3 | Optotune | 2.74 µm | 1.1" | 420 - 900 | |
| F 3.7 | C-Mount | 24.5 | Optotune | 2.74 µm | 1.1" | 420 - 900 | |
| F 3.2 | C-Mount | 24.5 | Optotune | 2.74 µm | 1.1" | 420 - 900 | |
| F 3.2 | C-Mount | 35 | Optotune | 2.74 µm | 1.1" | 420 - 900 | |
| F 5.4 | C-Mount | 35 | Optotune | 2.74 µm | 1.1" | 420 - 900 | |
| F 3.5 | C-Mount | 46.4 | Optotune | N/A | 1.1" | 420 - 900 | |
| F 5.6 | C-Mount | 46.4 | Optotune | N/A | 1.1" | 420 - 900 |
Pourquoi choisir Optotune - ELM-F ?
Fast refocus without mechanics
Enables rapid focus changes electrically, which is useful in stations with varying part height or object distance.
One setup for variable working distances
Supports focus adjustment from 200 mm to infinity on the 25 mm variant, reducing the need for mechanical refocus or lens changes.
Supports high resolution 1.1" cameras
Designed for sensors up to 1.1" with support for pixel sizes down to 2.74 µm, making it suitable for detailed inspection tasks.
Broad VIS to NIR coverage
The 420 to 900 nm range supports both visible imaging and many common 850 nm near infrared setups.
Low distortion for image accuracy
The 25 mm version is specified at less than 0.5% distortion, which is beneficial in code reading, alignment, and measurement-related imaging.
Built for frequent focus changes
Specified for more than 1 billion cycles, making it a strong fit for high duty cycle automation tasks.
Compact C-mount integration
Combines fixed focal length optics and tunable focus in one module, helping simplify system design and integration.