Progressive

An image display system used to display the entire screen per scan. When an interlace signal (video signal) that displays one screen by two scans (one for odd lines and one for even lines) is input, progressive processing is required. When the progressive function is turned off, one screen is displayed using image signals per interlace signal, deteriorating the vertical resolution of the image. When the progressive function is turned on, one screen is displayed using image signals per two interlace signals, improving the vertical resolution of the image. Turn off the progressive function when flickering and horizontal lines are noticeable on a fast-moving picture.

Resolution

The number of dots (horizontal dots x vertical dots) that can be displayed on a computer is called “resolution of display”. Resolution indicates the size of the display area (amount of information).

Resolution

Number of dots

 

 

Horizontal

Vertical

 

 

 

 

VGA

640

480

 

 

 

SVGA

800

600

 

 

 

XGA

1024

768

 

 

 

SXGA

1280

1024

 

 

 

SXGA+

1400

1050

 

 

 

UXGA

1600

1200

 

 

 

UXGA 1600 x 1200 (4:3)

SXGA + 1400 x 1050 (4:3)

SXGA 1280 x 1024 (5:4)

XGA 1024 x 768 (4:3)

Number of pixels in each resolution

Selecting SXGA+ (1400 dots x 1050 dots) as the display resolution of the computer allows this projector to project high-resolution images. If your computer does not have the SXGA+ option, select the maximum resolution among the selectable options.

Gamma Correction

A tone adjustment system used during projection of image data. The gamma correction function works effectively when portions of an image are obscure because they are too light or dark.

This projector supports manual gamma correction, automatic gamma correction, and dynamic gamma correction.

DVI-I

A digital video signal connection interface. This interface allows digital data to be sent and received without conversion to analog data, assuring high image quality with no signal degradation. The DVI-I (integrated) connector can be used to send and receive analog RGB video signals in addition to digital signals.

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Canon SX20 manual Number of pixels in each resolution

SX20 specifications

The Canon SX20 IS is a powerful and versatile digital camera that appeals to both amateur and advanced photographers. Launched in 2009, this camera brought together a range of impressive features that made it a popular choice among consumers seeking quality and convenience in a compact body.

One of the standout features of the Canon SX20 is its 20x optical zoom lens, which spans an impressive focal length equivalent to 28-560mm in 35mm terms. This versatility allows users to capture stunning wide-angle landscapes as well as detailed close-ups of distant subjects. The lens is accompanied by Canon's Optical Image Stabilization technology, which greatly reduces the effects of camera shake, ensuring that images remain sharp and clear even in challenging conditions.

At its heart, the SX20 IS boasts a 12.1-megapixel CCD sensor that delivers high-resolution images with vivid colors and fine details. This sensor works in tandem with Canon's DIGIC 4 image processor, which significantly enhances image quality, reduces noise levels, and improves overall performance. The combination of these technologies enables photographers to shoot in a variety of lighting conditions, from bright sunlight to low-light environments.

In addition to capturing still images, the Canon SX20 IS also excels in video recording. It features the ability to shoot 720p HD video, allowing users to document events with clarity and detail. The camera includes an HDMI output, which makes it easy to connect to HD televisions for instant viewing.

The camera's 2.5-inch vari-angle LCD screen is another noteworthy characteristic. This swivel display allows for creative shooting angles and improved visibility in bright sunlight. Coupled with a comfortable grip and well-placed control buttons, the SX20 IS provides an enjoyable shooting experience.

The Canon SX20 IS also includes a range of advanced shooting modes, such as the Smart Auto mode, which intelligently selects the appropriate settings for various scenes. Other manual controls, such as aperture and shutter priority, are available for those who want more creative control over their photography.

Overall, the Canon SX20 IS stands out with its unique combination of powerful zoom capability, excellent image quality, and user-friendly features, making it an appealing choice for anyone looking to enhance their photography experience without the complexity of interchangeable lenses.