Cleaning the Image Sensor (CMOS)

The image sensor is like the film in a film-based camera. If any dust or other foreign matter adheres to the image sensor, it may show up as a dark speck in the images.

To avoid this, follow the procedure below to clean the image sensor. Note that the image sensor is a very delicate component. If possible, you should have it cleaned by a Canon Service Center.

While you clean the image sensor, the camera must be turned on. Use the AC Adapter Kit ACK-E2 (optional accessory, see page 128) or a battery. If you use a battery, make sure the battery level is sufficient. Before cleaning the image sensor, detach the lens from the camera.

1 Insert the DC coupler (p.22) or a fully charged battery into the battery compartment and set the Power switch to <1>.

2Select [Sensor clean.].

•Select the [˚] tab.

•Press the <å> keys to select

[Sensor clean.], then press <p>.

sIf you are using a battery with sufficient power, the screen shown in step 3 will appear.

•If the battery is exhausted, a warning message will appear and you will not be able to proceed further. Either

recharge the battery or use a DC coupler and start from step 1 again.

3 Select [OK].

•Press the <µ> keys to select [OK],

then press <p>.

sThe mirror will lock up and the shutter will open.

s“” will blink on the LCD panel.

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Canon 300D instruction manual Cleaning the Image Sensor Cmos, Select OK
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300D specifications

The Canon EOS 350D, 300D, and 400D are pivotal models in the history of Canon's digital SLRs, each contributing significantly to the popularization of DSLR technology among enthusiasts and professionals.

The Canon EOS 300D, introduced in 2003, marked a turning point for digital photography. It was Canon's first entry-level DSLR and brought professional-quality features to a wider audience. It features an 18-megapixel APS-C sensor, capturing images at a maximum resolution of 3072 x 2048 pixels. One of its defining characteristics was the inclusion of an 8-megapixel sensor, which was revolutionary at the time, allowing photographers to produce detailed images. The camera also provided a robust build and a user-friendly interface, making it accessible to beginners.

In 2005, Canon released the EOS 350D, building upon the 300D's foundation. The 350D refined the design with a smaller and lighter body, while also bumping up the resolution to 8 megapixels. It introduced a 2-inch LCD screen with a sharper display, enhancing usability. The camera also incorporated a more advanced DIGIC II image processor, improving overall performance, including faster autofocus and better noise control at higher ISO settings. The 350D supported a range of lenses, further expanding creative possibilities for users.

The Canon EOS 400D, launched in 2006, pushed the envelope further. With a resolution of 10 megapixels, it offered even more detail in images. The 400D introduced a newly designed dust reduction system, effectively combating sensor dust—a common issue for DSLRs. The 2.5-inch LCD screen was larger and featured a better viewing angle, allowing for more comfortable composing and reviewing of shots. This model was also equipped with the DIGIC III processor, which improved shooting speed and image quality, particularly in challenging lighting conditions.

All three models share a commitment to durability, usability, and performance, making them ideal choices for budding photographers. Their compatibility with Canon's extensive EF lens lineup ensures that users have access to a broad range of focal lengths and creative options.

In summary, the Canon EOS 300D, 350D, and 400D each played a significant role in the evolution of digital photography, providing key technologies and features that appeal to both novice and seasoned photographers alike. Their legacy continues to influence Canon's current offerings in the DSLR market.
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