Focus by turning the lens focusing ring until the subject is in focus in the viewfinder.

When Autofocus Fails (Manual Focusing)

Autofocus can fail to achieve focus (the focus confirmation light <n> blinks) with certain subjects such as the following:

(a)Low-contrast subjects (blue sky, solid-color walls, etc.).

(b)Subjects in low light.

(c)Extremely backlit and reflective subjects (car with a reflective body, etc.).

(d)Overlapping near and far objects (animal in a cage, etc.).

In such cases, do one of the following:

1.Focus an object at the same distance as the subject and lock the focus before recomposing.

2.Set the lens focus mode switch to < MF> and focus manually.

Manual Focusing

1 Set<MF>.the lens focus mode switch to 2Focuson the subject.

Focusing ring

If you press the shutter button halfway during manual focusing, the active AF point and the focus confirmation light <n> in the viewfinder will light when focus is achieved.

If focus cannot be achieved with an external Speedlite’s AF-assist beam, select the center AF point. An off-center AF point may not be able to achieve focus.

< AF> stands for auto focus.

< MF > stands for manual focus.

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Canon 300D instruction manual When Autofocus Fails Manual Focusing, Focusing ring

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.