Common Camera Malfunctions and Maintenance Compilation

Common Camera Malfunctions

For Compact Cameras

• The malfunction rate of this camera type is 3/10. Most malfunctions occur with the sensor, also known as the sensor. This component can be seen as the soul of the camera because it can permeate the most important parts, from converting natural light data into image light to determining image resolution quality.
• Frequent usage, coupled with careless handling by users: Dropping, bumping, or applying excessive force to the camera, unfavorable weather conditions... all affect this sensitive component. Besides, improper use of the camera's functions and technical specifications also affect the sensor.
• All compact cameras currently on the market use CMOS and CCD technologies. As a rule, cameras using CMOS technology tend to save costs because of their relatively cheap price due to CMOS sensors providing only relatively good image quality. Consequently, the working ability of the camera also has certain limitations.
• CCD sensors, on the other hand, achieve higher quality, can enlarge, shrink images, and capture with high sensitivity, but they are also more expensive... Many customers, unaware of this fact, have used CMOS technology cameras with high intensity like CCD. Therefore, the lifespan of the sensor gradually weakens. In the long run, without timely adjustments, sensor malfunction is inevitable. Conversely, cameras using CCD are not 'invincible' and require a reasonable operating mechanism.
• Signs of sensor deterioration include inconsistent brightness in images, too bright, or too dark, even though white balance has been adjusted. The shutter speed will increasingly slow down, and the time between shots will be much longer.
• When the sensor malfunctions, the only solution is replacement because the recovery method does not yield results. Replacement cost ranges from 500,000 to 1,000,000 VND depending on resolution and manufacturer.
• In addition, some sensor malfunctions are due to manufacturers. However, this figure is insignificant and all are warranted by manufacturers for free replacement. Canon has experienced this issue with models A60, 70, 75, 300, 310 (PowerShot), and V3, II, IIs (Ixus).
• Aside from the sensor, some cameras also malfunction in the lens due to lack of regular cleaning or during shooting, resulting in broken lenses, damaged electronic circuit boards. Repairing and replacing lenses in compact cameras are quite expensive because they are designed to be sealed inside the camera body and finding replacements is difficult.
• Other common issues include camera button malfunctions; if you have the habit of holding the button for too long, it will 'stick,' and later you'll need to press very hard to take pictures.
• Another factor is leaving the camera in damp, moldy places, which over time will cause fungus inside the camera.

For Professional Cameras

• Minor malfunctions in pro cameras are also very rare. The most common issues usually involve the lens and sensor.
• Lens is a combination of lenses that help to capture distant and close distances, creating convenience for sharp images. As it is a detachable part, the lens is often prone to dust and moisture buildup.
• Improper usage and maintenance can lead to dirty lenses, resulting in blurry, spotted images. Typically, every 3 months, the lens needs cleaning. You can send the camera to a store for professional cleaning, costing around 30,000-50,000 VND (regular cleaning) and 50,000-100,000 VND (thorough cleaning with solution).
• If images appear unclear, apart from issues with the lens, the sensor is also a direct factor. Located deep inside the camera, in contact with the lens, this component is prone to contamination. While cleaning the lens is challenging, cleaning the sensor is even more difficult.

Proper Camera Maintenance

For Compact Cameras

• Store by placing the device in a sealed container with roasted rice inside. The roasted rice will absorb moisture from the device, similar to using desiccant.
• Store by heating with chili pepper lights is a method many people use. By placing the device in a cabinet with one or two chili pepper lights and continuously heating. Since I haven't used this method, I don't have experience, but it's best to also purchase a humidity meter to monitor.
• Store by heating with a TV, this method is very effective and according to someone, it can also kill mold because when the TV is operating, the CRT emits a certain amount of magnetic field. They make a small cabinet with a mesh bottom and place it close to the TV, each day the TV is on will heat the device. I haven't personally tried this method, but I see it's also good as long as someone watches TV for a few hours every day for it to be effective.
• Caring for battery life is very important. Many users have found that after just a year of use, the battery life has decreased significantly. It's best not to charge when the battery is still high and to use all batteries evenly (if available) to avoid damage to those less used. Don't overcharge for each charging session and always leave the battery with power in case it's not used for a long time.

For Professional Cameras

• Self-maintenance is quite simple: After use, gently wipe the entire lens and camera body with a soft cloth. Place the camera in a desiccant box or drying cabinet. If taking the camera to the beach, you must minimize as much as possible the entry of seawater into any part of the camera. Pay attention not to let sand get into the lens, jamming the zoom ring. If not careful, vigorous rotation can cause sand stuck to the lens to break the internal rotating parts. When choosing a lens, you should choose one with a UV protective layer.
• You can check if the sensor is dirty by following these steps: Remove the lens, turn on a bright light. Press Menu, select Clean Sensor. Press Set, the screen will appear, and then you will see a green 'blob' sensor. If you see many spots around the sensor, it's time to clean it.
• You can self-clean the sensor as follows: Use a blower to blow dust, gently blowing horizontally so that if there is any dust, it will be blown out. The blowing process should be done with the camera facing downwards and blow from the bottom up.
• Store by placing the device in a dehumidifier cabinet, this is the most scientific method because there is a meter and clear operating principle, but it's also the most expensive because the price of the cabinet ranges from 100 USD to several hundred USD. If possible, investing in a cabinet is also reasonable because with the value of the camera and lens up to over thousands of USD, investing in a 100 USD dehumidifier cabinet is also appropriate. When setting the appropriate humidity, the cabinet will automatically maintain that humidity so we don't have to worry much about monitoring.