Canon PowerShot G2, Service Manual

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1-1
1 Development Background
1-1 Development Objectives
Following the development of CCDs with a total of 3.34 million pixels, last year (the year 2000), digital
cameras equipped with such CCDs were introduced by many manufacturers.In the midst of this development,
Canon came to market with the PowerShot G1, a departure from the flat-profile and ultra-compact models
that have been Canon’s specialty. The PowerShot G1 incorporates specifications that meet the needs both of
advanced amateurs such as SLR camera users who demand high image quality, and of business users who
place an emphasis on reliability.
However, in the fall of 2001, 1/1.8-inch CCDs with over four million total pixels will become available. It is
vital that Canon introduce an enhanced version of the PowerShot G1 equipped with this new type of CCD for
both amateur and business applications.
Compared with the products available in the spring of 2001, Canon’s digital cameras in the 1.3 million to 2
million pixel class, incorporating a new imaging engine, primary color filters, and direct print support, represent
clear advancements in the field. In terms of image quality and performance, they are the top of the class in the
industry.
Given this background, Canon is initiating development of the PowerShot G2 digital camera with the aim of
preserving the basic concepts and assets of the PowerShot G1 while also providing the best image quality and
the latest functions for advanced amateurs and commercial users, including a 4M-pixel CCD (the most pixels
in the compact camera class), a new imaging engine, primary color filters, three light metering modes, direct
print support, color effect modes, and continuous rapid shooting capability.
1-2 Product Concept
By equipping the PowerShot G2 with a 4 million pixel CCD (the most pixels in any compact digital camera in
the year 2001), using primary color filters and functionally enhancing, the PowerShot G2 will be at the top of
its class in terms of image quality and functionality. We have also reworked the design to produce a more
refined appearance.
As a successor to the PowerShot G1, the product concept for the G2 is to provide a product that, as the most
sophisticated model in the PowerShot Series, satisfies advanced amateur and semiprofessional photographers
in five main areas: high image quality, range of features, ease of operation, system accessories, and application
software.
In addition, by creating a series of Canon with the maximum number of pixels, we are able to maintain
continuity of our product line.
→ →
→ →
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PowerShot G1
PowerShot G2
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- 4-million pixel CCD
- Primary color filters
- Color effect mode
- AF with ranging point selection
- 11x zoom
- Three light metering modes (selectable)
- Two continuous shooting modes
- Two movie sizes
- Direct print
- Playback histogram display
- Macro-Ring Light support etc.