Hi there! Welcome to QILENS, your trusted partner in specialized lens solutions.

At QILENS, we specialize in crafting high-quality lenses designed for unique applications. Our product line includes a variety of lens sizes (M12, M9, M8, M7), mounts, and filters to meet all your imaging needs.

Can't find exactly what you're looking for? Don't worry! We're here to help. Simply reach out to us and we'll work with you to find the perfect solution.

Upgrade Your Camera System with the Right Lens!

Our M12 Lens Sample Kit is designed for professionals and DIY enthusiasts who need to test different focal lengths before committing to a single lens. Whether you're setting up a security camera system, working on a Raspberry Pi project, or optimizing machine vision applications, this kit provides the flexibility to choose the perfect lens for your needs.

*** Why Choose This Kit? ***
# Wide Range of Focal Lengths – From ultra-wide 2.1mm (ideal for close-range monitoring) to telephoto 70mm (for long-distance surveillance).
# Plug-and-Play Compatibility – Works with most M12-mount cameras, including CCTV, dash cams, drones, and industrial cameras.
# Cost-Effective Testing – Avoid buying multiple lenses separately; test all options in one affordable kit.
# Durable & Reliable – Multi-coated glass lenses resist scratches and minimize distortion for crisp imaging.

=== Perfect For: ===
> Security system installers testing lens angles
> Engineers prototyping vision-based devices
> Raspberry Pi & Arduino camera projects
> Industrial automation & machine vision setups

=== Package Includes: ===
* Short Focal Length Set (2.1mm, 2.5mm, 2.8mm, 3.7mm, 6mm)
– Great for wide-angle coverage.

* Medium Focal Length Set (6mm, 8mm, 10mm, 12mm, 22mm, 25mm, 30mm)
– Balanced for mid-range applications.

* Long Focal Length Set (35mm, 45mm, 70mm)
– Ideal for zoomed-in surveillance.

Order now and find the perfect lens for your project!

**Need to choose the right filter? Let us help!**

Infrared radiation can affect digital sensors, causing unwanted color casts. That's why most digital cameras include an infrared cut filter.
We offer the option to add an infrared filter (650nm IRC) at checkout to give you maximum flexibility.

OPTIONS:
- NO IR FILTER
- WITH IR FILTER

**NOTICE:**
The sample package defaults to including an IR650 filter.
If you need a product without the filter, you can choose other listings in our store or contact our customer service for assistance.

**Important Notes:**
1. Lens Holder Compatibility:
- Match the holder height to your lens specs for proper focusing.
- Ensure the holder pitch matches your camera board.
Need help choosing? We're here to assist!

2. Manual Focus Features:
- The lens may feel loose before focusing - this is normal.
- After focusing, you can secure it with damping grease if needed.

3. Dust & Bubbles:
- You may notice dust or bubbles during focusing.
- They'll disappear once the lens is properly aligned.

4. Focusing Tips:
- Avoid over-tightening the lens to prevent sensor damage.
- Use a video screen for precise adjustments.

5. NoIR Cameras:
- Select "NO IR FILTER" at checkout if you're using a NoIR camera.

6. Custom Crafted Quality:
- Our lenses are precision-made, often by hand.
- Minor imperfections may exist, but they don't affect performance.

Need any help? Feel free to reach out!