Terms & Conditions


Canon Camera Doctor's Tips

1) Reset All Personal Settings

It is important before taking a photograph to check the settings of your camera. This can prevent the previous settings from affecting the new shot. In fact, many advanced digital camera menus include a number of personalized settings. However, these settings may sometimes turn off a specific function. For example, the AF start operation can be changed to the AE lock function instead of a half-press of the shutter button. Forgetting about this setting may cause problems when shooting in a different environment, as there will be no reaction from the lens even if you keep pressing the shutter button. So remember to reset all camera settings every time and then change the setting based on the current conditions.


2) Release Shutter with Card

Are you aware that some camera settings designed for ease-of-use can risk losing your precious photos? For instance, with the “Release shutter without card” setting, many users “enable” the function to allow shutter release even if no memory card is inserted in the camera. This allows the LCD monitor to show the photos taken while testing of camera. However, if you were occupied with taking good photos while forgetting to insert a memory card, you may risk losing all your precious photos by not confirming shots through the LCD panel. Therefore, it is better to “disable” the function.


3) Adjusting Viewfinder Clarity

Often objects appear blurred when looking through the viewfinder. This is not necessarily an auto focus problem but can be due to an incorrectly adjusted dioptric. The correct way to adjust the dioptric is to, first, detach the lens from the camera body, then look through the viewfinder and turn the dioptric adjustment knob left or right until the grid lines on the focusing screen or the AF points are sharp.


4) Low-Level Format of Memory Card

Functions like “delete file” or “format card” are common in digital cameras, but they only refer to logical delete while keeping the location for file storage unchanged. As time goes by, you may encounter a read or write error under frequent usage. In this case, a low-level format is recommended before an important shoot.


5) Camera Strap and Tripod Mount

Hardware such as the camera strap or tripod mount is important for the safety of your equipment. Users should always check the hardware carefully and make sure it is properly attached to prevent accidental falls that may damage the camera or lens.


6) Prepare Your Battery

Recharge your battery the day before you wish to use the camera. Every battery has internal resistance that will slowly consume battery power. Therefore, it is good practice to recharge the battery one day before use to maintain optimal battery performance.

A genuine Canon battery comes with a protective cover, which stops metal items short circuiting the battery contact points. There is another less well-known use for some battery covers that have a battery-shaped hole or a U-shaped cutout in the edge. When attached in a different orientation, the cover can be used to check whether the battery has been recharged by seeing if the battery-shaped hole appears blue or black or if a triangle arrow indicator is visible in the U-shaped cutout.


7) Prolong the Battery Life

Remember to remove the battery when not using the camera. A small amount of power is consumed when in the camera, which could result in excess discharge of the battery and a shorter battery life. Best practice is to store the battery 50%~60% charged.


8) Avoid Dust Fall into CMOS Sensor

Shooting in Hong Kong under dusty day, it is hardly avoid dust fall on the CMOS Sensor. For the best practice to minimize the dust fall inside the camera, we should place the camera upright when changing the lens, just press the lens release button, rotate and remove the lens. When attach the lens, please do not point the camera to sky, which dust will easily fall on the mirror or shutter blade. Also, do not point the camera to ground. When facing downward, the camera is certainly protected. However, the real lens is facing up, and leaving a large surface area to collect dust. After the lens attached on camera, with few shoots taken, the dust may fall on the CMOS Sensor. Therefore, simply place the camera in upright position when changing the lens.


9) Counteraction when dust find on pictures during shooting

When review the pictures on LCD, you find a small shadow spot appear on every single photo. It is highly possible there is a small dust stick on the CMOS Sensor. However, it is not advisable to manually clean the sensor at outdoor. In that case, you may activate Sensor Cleaning by selecting Clean Now. It will activate the Self Sensor Cleaning unit to shake off the dust on the front of sensor. In some cases, specially high humid weather, the dust will even stronger and stick on the CMOS sensor surface with moisture, which is difficult to shake off. For such scenario, you need to append Dust Delete Data. There will be small set of data, that record the dust positioning, which will embed in the JPEG and RAW file. After, you can use Digital Photo Professional (EOS software) to erase the dust spots automatically.