The item in the image is an adjustable rotational ND (Neutral Density) clip-on lens for glasses. It is designed to control brightness by rotating the filter, making it useful for driving, outdoor activities, photography, or bright sunlight conditions.
Main Specifications
1. Lens Type
- Variable ND (Neutral Density) filter
- Light reduction range: ND2 – ND400
- Helps reduce glare and excessive sunlight.
2. Adjustment System
- 1–9 gear manual brightness adjustment
- Rotational ring control to increase or decrease light entering the lens.
3. Lens Diameter
- 52 mm filter size
4. Brightness Control
- Adjustable depending on sunlight intensity
- Suitable for daytime and nighttime visibility adjustment
5. Mounting Design
- Clip-on bracket that attaches to regular eyeglasses
- Easy to install and remove.
6. Rotation Mechanism
- 360° rotational ring
- Allows smooth brightness tuning.
7. Frame Material
- Lightweight metal + durable plastic clip arms
8. Lens Material
- Optical multi-layer coated glass or resin lens
- Designed to reduce reflection and glare.
9. Usage Scenarios
- Driving in bright sunlight
- Outdoor sports
- Cycling or fishing
- Photography light control
- Reducing eye strain from glare.
Key Features
- Adjustable light filtering
- Rotatable ND lens ring
- Clip-on design for prescription glasses
- Portable and lightweight
- Anti-glare sun protection
✅ Simple explanation:
You rotate the ring on the lens to darken or lighten the view, similar to adjusting sunglasses depending on how strong the sunlight is.
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