f: Changing the Depth of Field

Shooting Tips

When using a high aperture, note that camera shake can occur in low light scenes.

A higher aperture will make the shutter speed slower. Under low light, the shutter speed can be as long as 30 sec. In such cases, increase the ISO speed and hold the camera steady or use a tripod.

The depth of field depends not only on the aperture, but also the lens and subject distance.

Since wide-angle lenses have a wide depth of field, you need not set a high aperture to obtain a sharp picture from the foreground to the background. On the other hand, a telephoto lens has a narrow depth of field.

And the closer the subject, the narrower the depth of field. A farther subject will have a wider depth of field.

Set the aperture so that the shutter speed display does not blink in the viewfinder.

If you press the shutter button halfway and change the aperture while the shutter speed is displayed, the shutter speed display will also change to maintain the same exposure (amount of light

reaching the image sensor). If you exceed the adjustable shutter speed range, the shutter speed

display will blink to indicate that the standard exposure cannot be obtained.

If the picture will be too dark, the 30" (30 sec.) shutter speed display will blink. If this happens, turn the <6> dial to the left to set a lower aperture or increase the ISO speed.

If the picture will be too bright, the 4000 (1/4000 sec.) shutter speed display will blink. If this happens, turn the <6> dial to the right to set a higher aperture or decrease the ISO speed.

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Canon EOS 450D instruction manual Changing the Depth of Field
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EOS 450D specifications

The Canon EOS 450D, also known as the Rebel XSi in North America, is a DSLR that made its debut in early 2008. Positioned as an entry-level digital SLR, the EOS 450D was designed to cater to both photography enthusiasts and beginners looking to elevate their skills.

One of the standout features of the Canon EOS 450D is its 12.2-megapixel APS-C-sized CMOS sensor, which provides an impressive resolution for capturing high-quality images. This sensor allows photographers to print large formats and crop images significantly without losing detail. Coupled with Canon’s DIGIC III image processor, the camera delivers excellent performance in terms of image quality, noise reduction, and overall responsiveness.

The camera offers a robust ISO range of 100 to 1600, expandable to 3200, allowing for flexibility in various lighting conditions. Its nine autofocus points provide fast and accurate focusing, essential for capturing action shots and ensuring sharp images. The 450D also features a 3-inch LCD monitor, which is user-friendly and allows for easy navigation through menus and settings.

In terms of shooting capabilities, the EOS 450D supports continuous shooting at around 3.5 frames per second, making it suitable for capturing dynamic scenes. Additionally, the camera includes a variety of picture styles, enabling users to customize their images based on the desired effect.

For those interested in advanced photography techniques, the EOS 450D includes a range of exposure modes, including manual, aperture priority, shutter priority, and program mode. The camera also features built-in digital photo features such as automatic exposure compensation, which helps in achieving optimal results.

The build quality of the 450D is commendable for its class, featuring a comfortable grip and lightweight polycarbonate body, which enhances portability. Moreover, the camera supports a wide range of interchangeable lenses, allowing users to explore different photography styles and subjects.

Overall, the Canon EOS 450D stands out for its combination of user-friendly features, image quality, and solid performance. It remains a popular choice for amateur photographers looking to grow their skills and experience the world of DSLR photography. With its blend of technology and practicality, the EOS 450D has cemented its place in the hearts of many photography enthusiasts.
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