Removing Ir Filters From Mobile Cameras: A Step-By-Step Guide

Removing the IR filter from a mobile camera is a delicate procedure that can result in improved IR sensitivity and enhanced photo capabilities. However, it is important to note that this process can be complex and may void the camera's hardware warranty. It is recommended to work in a clean environment to reduce the risk of damaging the image sensor or introducing dust into the camera. Additionally, removing the IR filter can alter the camera's optical path, making it difficult to refocus the lens correctly. Before attempting this procedure, it is essential to have a basic understanding of electronics, circuit boards, and screwdriver operation.

Removing the IR Filter from a Mobile Camera

Removing the IR filter voids the camera's hardware warranty

Removing the IR filter from a camera can be done in two ways, depending on how the filter is placed in the camera. However, it is important to note that doing so voids the camera's hardware warranty.

The IR filter is an important component in digital cameras, as it blocks infrared light and allows the camera to capture colours as they are perceived by the human eye. Removing this filter exposes the camera's image sensor and electronics, increasing the risk of damage to the sensor and the introduction of dust into the camera. Therefore, it is recommended to work in an industrial clean room to minimise these risks.

In addition, removing the IR filter alters the optical path of the camera, which may result in difficulties obtaining proper focus with the lens. This alteration may also affect the autofocus mechanism, requiring adjustments to the sensor position.

The first method of removing the IR filter involves gluing it directly to the lens holder. This method is often used for board-level (M12 Micro lens) models and Dragonfly2 (CS-mount) models. The only way to remove the filter in this case is to destroy it. It is recommended to completely remove the lens holder from the camera before attempting to remove the filter.

The second method involves using screws to hold the IR filter in place with a removable retainer that is screwed onto the lens holder. This method is used for all case-enclosed (C-/CS-mount) models, except Dragonfly2. To remove the filter, simply unscrew the retainer and take out the filter.

While removing the IR filter can allow for experimental photography and access to infrared wavelengths, it is a delicate process that carries the risk of permanent damage to the camera. It is important to carefully consider the risks and potential consequences before attempting any modifications to your camera equipment.

Work in a clean environment to avoid damaging the image sensor

Working in a clean environment is crucial when removing the IR filter from your camera to avoid damaging the image sensor. Even a tiny speck of dust can affect image quality, so it is important to take the necessary precautions. Here are some steps to ensure a clean environment:

Firstly, choose a suitable workspace. It is recommended to work in an industrial clean room or an area with minimal dust and debris. Cover your work surface with a clean mat or cloth to catch any dust and provide a clean, flat surface to work on. Ensure the area is well-lit so you can clearly see the camera components.

Before beginning, gather all the necessary tools and keep them organised and within easy reach. This will help you maintain a tidy workspace and reduce the risk of accidentally knocking or dropping something onto the image sensor. Some tools you may need include precision screwdrivers, tweezers, lens spanners, cleaning solutions, and a camera-specific tool kit.

It is also important to prepare yourself. Wear clean, static-free clothing to minimise the risk of static electricity discharge, which can damage the image sensor. Avoid wearing fuzzy or fluffy fabrics, and consider wearing an anti-static wrist strap to further protect sensitive components.

Once you start working on the camera, be mindful of your movements and try to maintain a controlled environment. Keep the camera enclosed as much as possible to prevent dust from entering. If you need to access the internal components, use a dust blower to gently remove any accumulated dust before proceeding.

When removing the IR filter, be cautious not to touch the image sensor. The oils from your skin can leave marks or residue on the sensor, affecting image quality. If you need to handle the sensor or any other internal components, wear clean, lint-free gloves to provide an extra layer of protection.

Finally, if you are reassembling the camera, ensure that all components are properly aligned and secured. A loose connection or misaligned part can cause vibrations, which may lead to dust or debris settling on the image sensor.

Tools required: screwdriver, lighting filters, gloves, tweezers, etc

Removing the IR filter from a mobile camera requires a steady hand, technical know-how, and a set of appropriate tools. Here's a list of tools you'll need to safely and effectively remove the IR filter:

• Screwdriver: You will need a small screwdriver with precision tips to carefully unscrew the tiny screws holding the camera's casing together.
• Lighting filters: To compensate for the removal of the IR filter, you may want to use lighting filters that block out all visible light except for infrared. These filters can enhance your infrared photography by allowing only infrared light to reach the camera sensor.
• Gloves: Latex gloves can be useful to avoid leaving fingerprints on the camera's internal components and filters. They also provide a better grip and protect your hands during the disassembly process.
• Tweezers: A pair of tweezers will be essential for gently lifting and removing the IR filter from its housing. They allow for precise handling of delicate components.
• Clean workspace: It is crucial to have a clean and well-lit workspace to avoid losing small screws and to prevent dust or debris from entering the camera.

Additionally, it is recommended to have a magnifying glass to aid in intricate maneuvers and a container to organise the screws you remove. Remember to take pictures as you disassemble the camera to help with reassembly.

Please note that removing the IR filter from your mobile camera is a delicate process and can void the camera's warranty. It is a complex procedure that should only be attempted by experienced individuals. If you are unsure, it is best to seek professional assistance.

Take pictures as you disassemble the camera to help with reassembly

Taking pictures as you disassemble the camera is a very good safeguard against a failing memory and will help with reassembly. Ensure you have a digital camera or cellphone to take lots of pictures at each step of the disassembly process.

Start by removing all visible screws. Do not force anything. If the camera still seems stuck after you've removed all the visible screws, check underneath any leather covering, as sometimes these hide screws below. Be careful when peeling off the leather, as you don't want to stretch or tear it when you glue it back on.

When removing the camera module, use tweezers to gently pry it out of its component mounting. Start by prying up one side a little bit, and then do the same to the opposite side. Once the camera is free of its mounting, unplug the ribbon cable that attaches it to the phone's main circuit board.

Be sure to keep all the screws you remove in a safe place, as you will need them for reassembly.

Reassemble the camera in reverse order

Reassembling the camera is a delicate process that requires careful attention to detail. Here is a step-by-step guide on how to reverse the disassembly process and put your camera back together:

Reattaching the IR-Blocking Filter

• If you have removed the IR-blocking filter and decided to keep it, ensure that it is clean and free of any dust or debris.
• Place the IR-blocking filter back into its original position, whether that is in front of the CCD or embedded in the lens assembly.
• Secure the filter in place, either by gluing it or using any other appropriate method for your camera model.

Reattaching the Lens and Camera Boards

• Refer to the pictures you took during the disassembly process to identify the correct order and placement of the lens and camera boards.
• Carefully attach the lens assembly back into its enclosure, ensuring that it is secure and properly aligned.
• Reattach the camera boards, including the main board and any separate boards in front of it, by screwing them back into place.

Reassembling the Camera Body

• Refer to your pictures to identify the correct placement of the camera's internal components, such as the circuit board, sensor, and cables.
• Connect all cables and flex cables back into their respective sockets and connectors.
• Reattach the camera's front, top, and back covers, ensuring that all screws are tightened securely.
• Reattach the side panel and the back cover of the camera body, being careful not to damage the flexible flat cable (FFC) that connects the LCD and accompanying buttons.

Final Steps

• Once the camera is physically reassembled, carefully turn it on and test its functionality.
• Check if all screens, buttons, shutter, sensor, and other features are working properly.
• If there are any issues, reopen the camera and double-check that all cables and connections are secure and correctly seated.
• If everything is functioning properly, congratulations! Your camera is now back together and ready to use.

Remember, it is crucial to take your time and work carefully during the reassembly process. It is easy to miss a small detail, so having a systematic approach and referring to your pictures and notes will help ensure a successful reassembly.

Frequently asked questions