Canon PowerShot S90 User Guide

To adjust the ISO settings on your Canon PowerShot S90, press the 'Func/Set' button, navigate to the ISO option using the control dial, and then select your desired ISO level.
If your Canon PowerShot S90 does not turn on, check if the battery is fully charged and correctly inserted. If the problem persists, try a different battery.
You can transfer photos by connecting the camera to your computer using a USB cable. Alternatively, remove the SD card and use a card reader.
Blurry photos can be caused by camera shake or incorrect focus. Use a tripod for stability and ensure that autofocus is properly set.
To reset to factory settings, go to the menu, select 'Tools', and choose the 'Reset All' option. Confirm the reset when prompted.
Use a soft, lint-free cloth or a microfiber cloth to gently wipe the lens. Avoid using any harsh chemicals or rough materials.
To extend battery life, reduce the use of the LCD screen, turn off the camera when not in use, and disable unnecessary features like Wi-Fi if available.
Check if the LCD screen brightness settings are correct. If the issue persists, perform a factory reset or consult a professional technician.
To enable macro mode, press the 'Macro' button on the back of the camera until the flower icon appears on the screen.
Yes, to shoot in RAW format, go to the menu, select 'Image Quality', and choose the RAW or RAW+JPEG option.