3528 Series 130 Degrees SONY 327 Dashboard Car Camera Lens
Choosing the right lens for a dashboard camera (dash cam) is important for ensuring that you get high-quality footage, especially in various driving conditions.
Here are some key factors to consider when selecting the lens for a dash cam:
1. Field of View (FOV)
Wide Field of View (FOV): A wide-angle lens (typically 120° to 170°) captures more of the road, allowing you to see more than just the lane you're in. This can be
particularly useful for capturing incidents in adjacent lanes, blind spots, or wider scenes.
Considerations: A wider FOV can distort the image at the edges, so a balance between coverage and image clarity is important.
2. Lens Aperture (f-stop)
Low f-stop (e.g., f/1.8, f/2.0): A lower f-stop value means the lens can capture more light, which improves image quality in low-light conditions (e.g., night driving).
If you're frequently driving at night or in dim conditions, a lens with a larger aperture (low f-stop) is crucial.
Higher f-stop (e.g., f/2.8, f/4.0): While these lenses might perform better in bright daylight, they may struggle in low-light conditions.
3. Lens Distortion
Lens Quality: A cheap lens can introduce unwanted distortion, especially in wide-angle cameras. Look for dash cams with high-quality lenses or ones that
specifically mention minimal distortion.
Types of Distortion: Barrel distortion (where straight lines appear curved) is common in wide-angle lenses. Some high-end cameras offer software to correct this
distortion.
4. Image Sensor Compatibility
Lens and Sensor Pairing: Ensure the lens matches the camera's image sensor. A good pairing results in better overall performance, especially in low-light scenarios.
For example, a high-quality lens paired with a poor image sensor won’t give you the desired results.
5. Resolution
4K or 1080p: The lens must support the camera's resolution. If you have a 4K dash cam, you’ll want a high-quality lens to ensure it captures the full detail that
the higher resolution provides. Similarly, for 1080p cameras, a good lens will help ensure sharp footage.
6. Lens Material
Glass vs. Plastic: Glass lenses tend to provide better optical clarity and reduced distortion compared to plastic lenses. Although plastic lenses can be lighter and
cheaper, they might not offer the same level of quality.
Coatings: Look for lenses with anti-glare or anti-reflective coatings to minimize lens flare and improve visibility in varying lighting conditions.
7. Lens Position
Adjustable Lens: Some high-end dash cams offer adjustable or rotatable lenses, allowing you to fine-tune the angle of view.
Fixed Lens: More affordable dash cams may have fixed lenses, which are simpler but limit flexibility.
8. Low-Light Performance
Night Vision: A lens with a wide aperture (low f-stop) helps with better low-light performance. Additionally, cameras with specialized night-vision sensors or IR
(infrared) sensors perform better at night, even if the lens itself doesn't have a large aperture.
9. Lens Protection
Lens Cap or Cover: Some dash cams offer lens caps or protective covers to prevent dust and scratches. Consider this if you plan to use your dash cam in dusty or
harsh environments.
10. Wide Dynamic Range (WDR) or HDR
WDR/HDR: Dash cams with WDR or HDR technologies are equipped with lenses and image processing that allow them to capture better details in both bright and
dark areas of the scene. This is especially useful when driving through areas with harsh sunlight or high contrast.
11. Focal Length
Short Focal Length (Wide Angle): Provides a larger view and is generally preferred for capturing a wide area around your vehicle.
Longer Focal Length: Offers more zoom, but this is less common in dash cams unless you're looking for specialized cameras designed for specific uses (e.g.,
rear-view or surveillance).
Summary of Key Considerations:
Wide Angle (120°–170°) for a broader field of view.
Low f-stop (f/1.8–f/2.2) for better low-light performance.
Glass lens for clearer, higher-quality images.
Lens with minimal distortion to avoid image warping.
Lens coating for anti-glare and anti-reflective properties.
If you want both good performance in low light and a wide field of view, look for a dash cam that features a high-quality glass lens, wide FOV, and a low f-stop
value. Additionally, checking for features like WDR or HDR will help improve footage in challenging lighting conditions.
| 1.Model:OKS-3528-B75 |
| 2.Optical Specifications) |
| NO. | Items | Description |
| 1 | Focal-Length | 2.5mm±0.5mm |
| 2 | F/No. | F2.5±5% |
| 3 | OpticalBack Focal Length | 4.93mm±0.1 |
| 4 | Mechanical Back Focal Length | 3.78mm±0.1 |
| 5 | MAX Image circle | θ6.8 |
| 6 | Lens structure | 6G+IR |
| 7 | Mount | M12*0.5 |
| 8 | FOV | sensor | H | V | D |
| 1/2.8" | 130° | 78° | 150° |
| 9 | IR Filter | 650nm |
| 10 | TTL | 22.0MM |
| 11 | Waterproof Level | IP68 |
| 12 | Working Temperature | -40℃~+85℃ |