· Fixed Focal Length Lenses Details
Oklab® FP117 Fixed Focal Length Lenses redefine compact optical performance. Precision-engineered for pixels ≤1.85μm, these machine vision lenses deliver exceptional resolution up to 270 line pairs per millimeter across the sensor.
Seamlessly compatible with C-Mount cameras, the series supports 1/1.7" sensors and 8-50mm focal lengths. Advanced focus and iris adjustments ensure optimal imaging in diverse machine vision scenarios.
Optimized for small sensors (up to 1/1.7"), these FA lenses excel in rapid positioning, guidance, and recognition tasks in logistics, factory automation, and smart manufacturing. From visual inspection to motion compensation, these lenses provide a robust, cost-effective solution for demanding imaging challenges.
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Model
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Max.
Sensor Format
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Image Circle
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Focal Length
(mm)
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Resolution
(mp)
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F/No:
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Min. WD
(mm)
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Mount
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FP117-0828
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1/1.7" |
9.4
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8
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12
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2.8~16 | 75 | C |
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FP117-1228
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1/1.7" |
9.4
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12 | 12 | 2.8~16 | 110 | C |
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FP117-1628
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1/1.7" |
9.4
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16 | 12 | 2.8~16 | 110 | C |
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FP117-2528
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1/1.7" |
9.4
|
25 | 12 | 2.8~16 | 150 | C |
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FP117-3528
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1/1.7" |
9.4
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35 | 12 | 2.8~16 | 200 | C |
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FP117-5028
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1/1.7" |
9.4
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50 | 12 | 2.8~16 | 300 | C |
· Technical Information of Fixed Focal Length Lenses
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FP117-0828 Datasheet
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Focal Length (mm) | f=8 | |||
| Max Diameter(RATIO) | F=2.8-16 | ||||
| Picture Size | 1/1.7" | 1/1.8" | 1/2" | ||
| Angle | H | 49.64° | 49.3° | 43.5° | |
| V | 38.4° | 34.0° | 33.2° | ||
| D | 60.17° | 58.5° | 53.4° | ||
| Distortion(TV) | <0.12% | ||||
| Focus distance(min) (mm) | 75 | ||||
| Filter screw size | M27.0 P0.5 | ||||
| Max sensor size | Φ9.4(1/1.7"） | ||||
| Relative Illumination | 73% | ||||
| Mount | C-Mount | ||||
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FP117-1228 Datasheet
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Focal Length (mm) | f=12 | |||
| Max Diameter(RATIO) | F=2.8-16 | ||||
| Picture Size | 1/1.7" | 1/1.8" | 1/2" | ||
| Angle | H | 34. 74° | 34.4° | 30.2° | |
| V | 26.56° | 23.4° | 22.8° | ||
| D | 42.71° | 41.2° | 37.2° | ||
| Distortion(TV) | <0.2% | ||||
| Focus distance(min) (mm) | 110 | ||||
| Filter screw size | M27.0 P0.5 | ||||
| Max sensor size | Φ9.4(1/1.7"） | ||||
| Mount | C-Mount | ||||
| FP117-1628 Datasheet | |||||
 |
Focal Length (mm) | f=16 | |||
| Max Diameter(RATIO) | F=2.8-16 | ||||
| Picture Size | 1/1.7" | 1/1.8" | 1/2" | ||
| Angle | H | 25.94° | 25.7° | 22.3° | |
| V | 19.72° | 17.5° | 16.9° | ||
| D | 32.14° | 31° | 28.0° | ||
| Distortion(TV) | <0.06% | ||||
| Focus distance(min) (mm) | 110 | ||||
| Filter screw size | M27.0 P0.5 | ||||
| Max sensor size | Φ9.4(1/1.7"） | ||||
| Mount | C-Mount | ||||
| FP117-2528 Datasheet | |||||
 |
Focal Length (mm) | f=25 | |||
| Max Diameter(RATIO) | F=2.8-16 | ||||
| Picture Size | 1/1.7" | 1/1.8" | 1/2" | ||
| Angle | H | 16.51° | 16.35° | 14.22° | |
| V | 12.50° | 10.96° | 10.69° | ||
| D | 20.60° | 19.82° | 17.73° | ||
| Distortion(TV) | <0.15% | ||||
| Focus distance(min) (mm) | 110 | ||||
| Filter screw size | M27.0 P0.5 | ||||
| Max sensor size | Φ9.4(1/1.7"） | ||||
| Mount | C-Mount | ||||
| FP117-3528 Datasheet | |||||
 |
Focal Length (mm) | f=35 | |||
| Max Diameter(RATIO) | F=2.8-16 | ||||
| Picture Size | 1/1.7" | 1/1.8" | 1/2" | ||
| Angle | H | 11.44° | 11.3° | 9.8° | |
| V | 8.64° | 7.6° | 7.4° | ||
| D | 14.32° | 13.8° | 12.3° | ||
| Distortion(TV) | <0.05% | ||||
| Focus distance(min) (mm) | 200 | ||||
| Filter screw size | M27.0 P0.5 | ||||
| Max sensor size | Φ9.4(1/1.7"） | ||||
| Mount | C-Mount | ||||
| FP117-5028 Datasheet | |||||
 |
Focal Length (mm) | f=50 | |||
| Max Diameter(RATIO) | F=2.8-16 | ||||
| Picture Size | 1/1.7" | 1/1.8" | 1/2" | ||
| Angle | H | 8.07° | 8.0° | 7.0° | |
| V | 6.1° | 5.4° | 5.2° | ||
| D | 10.11° | 9.7° | 8.7° | ||
| Distortion(TV) | <0.03% | ||||
| Focus distance(min) (mm) | 300 | ||||
| Filter screw size | M27.0 P0.5 | ||||
| Max sensor size | Φ9.4(1/1.7"） | ||||
| Mount | C-Mount | ||||
· Applications of Fixed Focal Length Lenses
Comprehensive Machine Vision: Detection to Decision Across Industries |
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Dynamic Quality Control High-Speed Defect Detection |
Logistics Vision Solutions Barcodes, OCR & Surface Inspection |
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Robotic Guidance Systems Precision Control Through Vision |
Incoming Materials Verification Position & Status Recognition |
Need assistance with your order?
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Product selection and compatibility
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Technical specifications
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Integration with your existing systems
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Custom requirements for your industry
Don't hesitate to reach out. Technical documentation, integration guidance, and custom solutions are available upon request.
We're committed to ensuring you find the perfect FP117 solution for your needs.
FAQ of Hirose 6 Pin Female Connector
1. How should I choose a focal length from the FP117 Fixed Focal Length Lenses?
For a 1/1.7-inch sensor, the horizontal angle of view decreases from 49.64° with the 8 mm model to 8.07° with the 50 mm model. Choose 8–12 mm for a wider field of view, 16–25 mm for general inspection, and 35–50 mm for smaller or more distant targets.
2. Can the FP117 Fixed Focal Length Lenses be used with 1/1.8-inch and 1/2-inch sensors?
Yes. The FP117 series supports sensors up to 1/1.7 inch with a 9.4 mm image circle, so it can also cover the smaller 1/1.8-inch and 1/2-inch formats. A smaller sensor produces a narrower field of view at the same focal length.
3. Are the FP117 Fixed Focal Length Lenses suitable for 12 MP cameras with 1.85 μm pixels?
Yes. The series is specified for resolutions up to 12 MP and pixel sizes down to 1.85 μm, with optical resolution up to 270 line pairs per millimeter. Final image detail also depends on focusing, aperture, lighting and camera settings.
4. Which FP117 Fixed Focal Length Lenses can focus at a working distance below 100 mm?
The FP117-0828 8 mm model has a specified minimum working distance of 75 mm and is the only model in the series listed below 100 mm. The other focal-length options require a minimum working distance of at least 110 mm.
5. Which FP117 Fixed Focal Length Lenses have the lowest specified TV distortion?
The 50 mm FP117-5028 has the lowest listed TV distortion at below 0.03%. The 35 mm model is below 0.05%, while the 16 mm model is below 0.06%. These models are suitable starting points when measurement accuracy and geometric consistency are important.
6. Can optical filters be installed on the FP117 Fixed Focal Length Lenses?
Yes. All six FP117 models specify an M27 × 0.5 filter thread. When selecting a filter, confirm its thread, clear aperture and housing dimensions to avoid mechanical interference or image-edge shading.