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DDPAI CPL Series Circular Polarizing Filter

Specifications

  • Better Color Tone
  • Reduce Light Reflection
  • Better Details

INTRODUCTION

WHAT IS CPL FILTER?
The CPL Filter, also known as the Circular Polarizing filter, is an optional accessory used in photography and videography. When attached to a dash cam, it is designed to reduce glare from your car’s dashboard, sunlight, and headlight reflections. By selectively blocking polarized light waves, the CPL filter enhances color and contrast, resulting in clearer footage and improved video clarity. This guide will walk you through how to install, adjust, and maintain your new filter. Please note that while the CPL filter enhances video quality in most lighting conditions, it may decrease video quality in low-light settings. You may want to remove it for night driving or in heavy overcast conditions.

WARNINGS AND PRECAUTIONS
Do NOT use the product if it is damaged. Contact the manufacturer’s customer support for guidance.

  • Do NOT Install or Adjust While Driving: Never install or adjust the CPL filter while driving. Distractions are the leading cause of injury or death. Always perform adjustments in a safe and stationary location.
  • Cautions during Installation: Before attaching the CPL filter to the dash cam, ensure the dash cam is powered off to avoid any potential damage during installation. Handle the filter with care to prevent smudges or fingerprints on the glass.
  • Cleaning Guidelines: Clean the CPL filter with a microfiber cloth (included) or a lens cleaning solution designed for optical glass. Avoid using abrasive materials or harsh chemicals, as they may scratch or damage the filter’s surface.
  • Glare Reduction Limitations: While the CPL filter effectively reduces glare and reflections, it may not completely eliminate all sources of glare, especially from unavoidable light reflections on the windshield or other surfaces.

IMPORTANT:
The products, images, and icons presented in this user manual serve solely for illustrative purposes and may vary from the actual product you have purchased. Please refer to the physically acquired product for definitive specifications. This manual employs a specific polarizing lens and DDPAI dash cam as demonstration cases to facilitate understanding of the product’s features and operational guidelines.

INSTALLATION

  • STEP 1: POWER OFF DASH CAM
    Before installing the CPL filter, power off and unplug your dash cam to avoid accidental damage.
  • STEP 2: CLEAN THE DASH CAM LENS
    Use the microfiber cleaning cloth (included in the box) to remove any dust or smudges from the lens. Ensure the lens is clean before installing the CPL filter to avoid blurry videos.DDPAI-CPL-Series-Circular-Polarizing-Filter-IMAGE (1)
  • STEP 3: REMOVE THE LENS COVER
    Carefully remove the plastic lens cover from the CPL filter. Avoid touching the inside or outside of the CPL lens to prevent smudging or adding finger grease, which can blur your videos.DDPAI-CPL-Series-Circular-Polarizing-Filter-IMAGE (2)
  • STEP 4: Install the CPL onto the camera lens of the dash cam
    Hold the CPL filter between the thumb and index finger with the side featuring the vertical mark facing upward, then press the polarizer bracket onto the camera lens of the dash cam. For some CPL filters using 3M adhesive, remove the protective film from the 3M sticker and attach it to the front of the corresponding lens.DDPAI-CPL-Series-Circular-Polarizing-Filter-IMAGE (3) Note:
    You may refer to the following illustration for the installation effect. The dash cam shown is for reference only and is not included in the package.DDPAI-CPL-Series-Circular-Polarizing-Filter-IMAGE (5)
  • STEP 5: POWER ON DASH CAM
    Once the CPL filter is securely attached, power on your dash cam.DDPAI-CPL-Series-Circular-Polarizing-Filter-IMAGE (6)
  • STEP 6: TEST THE CPL FILTER
    Place a small white piece of paper on the dashboard, under the dash cam, and in the middle (away from the windshield) to create a reflection on the windshield to be seen in the camera’s viewfinder.DDPAI-CPL-Series-Circular-Polarizing-Filter-IMAGE (7)

Remove the white piece of paper. Take a few test recordings in different lighting conditions to ensure the CPL filter is providing the desired glare reduction and enhancing overall video quality.

NOTES:

  • It is important to understand that complete elimination of the white paper’s reflection/glare may not always be possible due to its inherent characteristics and lighting conditions.
  • Some vehicles are equipped with window films. When sunlight shines on the window film and the CPL, a prismatic rainbow effect may occur. However, the recorded images of license plates will still be clearer. This phenomenon is normal, and no CPL from any brand can resolve this issue. If you mind, you can only choose between addressing glare and accepting the rainbow effect.

TROUBLESHOOTING

THE IMAGE QUALITY SEEMS DEGRADED OR DARK ?

SOLUTION:
Check if the CPL filter is correctly adjusted. Too much adjustment can make the image appear dark. If the problem persists, remove the CPL filter in low-light conditions.

RAINBOW EFFECT ?

SOLUTION:
Some vehicles are equipped with window films. When sunlight shines on the window film and the CPL, a prismatic rainbow effect may occur. However, the recorded images of license plates will still be clearer. This phenomenon is normal, and no CPL from any brand can resolve this issue. If you mind, you can only choose between addressing glare and accepting the rainbow effect.

USER MANUAL DISCLAIMER

  • This user manual has been meticulously crafted with utmost care and attention to detail. Still, we acknowledge that minor typos might have slipped our attention. If you come across any errors or have suggestions for implementation, we kindly request you to share them with us, enabling us to refine our offerings further. Please visit our website regularly for the most recent and updated user manuals, if available. Our platform also hosts a range of other helpful content tailored to our customers.
  • Please note that product upgrades, box contents, and user manuals are subject to change without prior notice. We invite
    you to visit us at www.ddpai.com for the most up-to-date information. Thank you once again for choosing DDPAI. Your satisfaction is our success.

CUSTOMER SERVICE
We genuinely appreciate your support and trust in our products. Should you encounter any difficulties during the setup process, please do not hesitate to contact our dedicated customer support team via email(feedback@ddpai.com). We assure you that 99%of all setup problems can be resolved quickly and effectively. Our ultimate goal is to ensure that our customers are not only satisfied, but delighted to use DDPAI products. We understand that while no product is perfect, the pursuit of exceptional customer service is our bottom line, and we strive to provide that to you every day.

FAQ

What should I do if the CPL filter is not reducing glare effectively?

If you are experiencing issues with glare reduction, ensure that the CPL filter is installed correctly and clean. Test the CPL filter in different lighting conditions for optimal performance.

Documents / Resources

DDPAI CPL Series Circular Polarizing Filter [pdf] User Manual
CPL Series, CPL Series Circular Polarizing Filter, Circular Polarizing Filter, Polarizing Filter, Filter

References

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