Precautions for Scanning at High Resolutions

Please note that file sizes increase almost exponentially as the resolution is raised when scanning in color mode. Scanning at high resolutions may require more time for scanning and image processing. You are recommended to avoid raising the resolution beyond the minimum requirement to scan in color mode.

File Size Estimates for Scanning an A4 Size Original in Color

-

75 dpi

1.6 MB

-

100 dpi

2.8 MB

-

150 dpi

6.3 MB

-

300 dpi

25.5 MB

-

600 dpi

102 MB

-

1200 dpi

408 MB

A4 color image

 

 

 

 

 

408 MB

 

 

 

 

102 MB

 

 

 

 

25.5 MB

 

 

1.6 MB

2.8 MB

6.3 MB

 

 

 

 

 

 

 

75 dpi

100 dpi

150 dpi

300 dpi

600 dpi

1200 dpi

* These numbers are approximate and may differ from actual scan results.

Resolution Guidelines

For uploading to a web site or viewing on a computer monitor, choose 75 dpi

For scanning print photos and magazine clippings, choose 150 - 300 dpi

For printing on a inkjet printer, choose a resolution approximately half the printer’s rating (180 dpi, 360 dpi, 720 dpi)

A resolution higher than 600 dpi is effective in case for scanning relatively small originals that will be blown up to larger sizes for printing.

6"(15cm)

4"(10cm)

12"(30cm)

Scanning at double of the resolution

Scanning at half

 

of the resolution

3"(7.5cm)

2"(5cm)

8"(20cm)

The maximum size of a file scanned by the bundled PhotoStudio 2000 is limited by Windows Me/98 to 256 MB. Windows 2000 Professional does not impose these limits.

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Canon D646U manual Precautions for Scanning at High Resolutions, Resolution Guidelines

D646U specifications

The Canon D646U is a versatile and powerful projector that caters to various professional settings, including business presentations, educational purposes, and even home cinema use. As a part of Canon's esteemed line of projectors, the D646U offers a wide array of features and advanced technologies that deliver impressive performance and exceptional image quality.

One of the standout features of the Canon D646U is its high resolution. It boasts a WUXGA resolution of 1920 x 1200 pixels, which provides clear and detailed images, making it suitable for complex presentations, intricate graphics, and videos. The projector’s brightness level stands at an impressive 6,000 lumens, ensuring that images remain vivid and discernible even in well-lit environments, which makes it a reliable choice for conference rooms and lecture halls.

In terms of connectivity, the Canon D646U offers a plethora of options, including HDMI, DisplayPort, and USB ports. This versatility allows for seamless connections to laptops, desktops, and other multimedia devices, facilitating easy integration into existing setups. Additionally, the projector supports multiple input formats, enhancing its compatibility with various presentation tools.

The Canon D646U also incorporates advanced projection technologies, including the LCD panel technology that elevates color reproduction and image fidelity. The three-panel design enhances color brightness and sharpness, resulting in rich and vibrant images that captivate audiences. Furthermore, the projector features a lens shift option that enables users to adjust the image position without sacrificing quality, allowing for flexible installation in different environments.

Another remarkable characteristic of the Canon D646U is its eco-friendly design. The projector features an energy-saving mode that can extend lamp life and reduce power consumption, making it a cost-effective choice over time. This focus on sustainability is an added benefit for organizations looking to minimize their environmental footprint.

The user-friendly interface of the Canon D646U further complements its robust feature set. It comes equipped with a remote control and various settings that allow for quick adjustments to ensure optimal image quality according to the presentation environment.

In summary, the Canon D646U is a powerful and efficient projector that combines high resolution, impressive brightness, versatile connectivity, and advanced projection technologies, making it an excellent choice for professionals seeking reliability and exceptional performance in their presentations.