(File No. Reset).
or 
button to select [On] or [Off] and press the 
The [Off] setting helps ensure that file num- bers remain unique over multiple CF cards. This is useful if you are planning to down- load images from the cards to your computer, since it helps avoid accidental overwrites that may occur if filenames are duplicated.
Image files are assigned numerical file names over the range 0001 to 9900. The camera stores these files into folders, which are assigned folder numbers from 100 to 998 (except that numbers ending in 99 are not used).
In most cases the camera stores exactly 100 files into each folder. Because the camera cannot switch to a new folder when taking
or 
/ 
mode, however, some folders may have more than 100 im- ages.
PowerShot A100, PowerShot A200 specifications
The Canon PowerShot A200 and A100 are compact digital cameras that appeal to photography enthusiasts seeking quality without complexity. Known for their ease of use and reliability, these models embody Canon’s commitment to delivering excellent imaging technology in a user-friendly package.The Canon PowerShot A200, released in the early 2000s, features a 3.2-megapixel CCD sensor, which provides vibrant and detailed images. Its 3x optical zoom lens allows users to frame subjects with precision, making it ideal for both portrait and landscape photography. One of its standout features is the 2-inch LCD screen, which offers a clear view for composing shots and reviewing images. The camera supports various shooting modes, including auto and manual exposure, giving users the flexibility to experiment with settings. The A200 also includes a built-in flash, which is essential for low-light photography.
On the other hand, the Canon PowerShot A100, with its 1.9-megapixel sensor, may be an older iteration but still delivers commendable performance for casual users. It boasts a similar compact design, making it portable and easy to carry. Equipped with a fixed focal length lens, the A100 emphasizes simplicity, making it suitable for beginners and those who prefer straightforward operations. The camera is integrated with Canon’s DIGIC image processor, ensuring faster processing times and improved image quality. Furthermore, it supports various scene modes, allowing users to adapt to different photographic conditions effortlessly.
Both models incorporate Canon's renowned reliability in lens optics, ensuring that images are sharp and clear. The PowerShot A200 and A100 also feature video recording capabilities, a novelty at the time of their release, allowing users to capture memorable moments not just in stills but in motion.
While both cameras focus on providing a seamless photography experience, the PowerShot A200 offers more advanced features, catering to users who may seek a balance between portability and creative control. In contrast, the A100 remains an excellent choice for users who favor compactness and simplicity in their photographic journeys. Ultimately, these PowerShot models represent the early efforts of Canon to blend technology with user-centric design, establishing a legacy that continues to influence the digital camera market today.