DSetting the ISO Speed

The ISO speed is a numeric indication of the sensitivity to light. A higher ISO speed number indicates a higher sensitivity to light. Therefore, a high ISO speed is suited for moving subjects or shooting in low-light conditions. However, the image will contain more noise to make it look coarse or grainy. On the other hand, a low ISO speed will make the image look finer, but it is not suited for freezing motion or shooting in low light.

ISO Speed in the Basic Zone Modes

The ISO speed is set automatically within ISO 100-400.

 

(ISO)

 

 

 

 

 

 

 

 

 

Y

U

I

O

P

A

S

 

 

 

 

 

 

 

 

Normal (No flash)

Auto*

100

Auto*

Auto*

400

Auto*

Auto*

 

 

 

 

 

 

 

 

With built-in flash

400**

100

 

400**

 

400**

 

With external Speedlite

100

100

100

100

400

100

 

 

 

 

 

 

 

 

 

*Automatically set within ISO 100-400. ** For daytime backlit conditions, ISO 100 is set.

ISO Speed in the Creative Zone Modes

You can set the ISO speed to “”, “”, “”, “”, or “”.

1Press the < D> (ß) button. ( )

sThe current ISO speed will be displayed on the LCD panel.

2Set the ISO speed.

While looking at the LCD panel, turn the < l> dial to set the desired ISO speed.

To return to shooting, press the shutter button halfway.

The higher the ISO speed and the higher the ambient temperature, the more noise the image will contain and the larger the image file size will be.

High temperatures, high ISO speeds, or long exposures may cause irregular colors in the image.

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Canon 300D Setting the ISO Speed, ISO Speed in the Basic Zone Modes, ISO Speed in the Creative Zone Modes

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.