Canon EOS 100D Quick Start Guide

To reset your Canon EOS 100D to factory settings, turn on the camera, press the 'Menu' button, navigate to the 'Setup' menu, and select 'Clear Settings'. Choose both 'Clear All Camera Settings' and 'Clear All Custom Functions'.
Use a blower to remove loose dust from the sensor. For stubborn dirt, use a sensor cleaning swab and cleaning solution specifically designed for cameras. Always ensure the camera is turned off before cleaning.
Download the latest firmware from the Canon website onto a formatted SD card. Insert the card into the camera, turn it on, and navigate to the 'Firmware Version' option in the 'Setup' menu to begin the update process.
High battery drain can be caused by settings such as Wi-Fi and GPS being enabled, using live view excessively, or leaving the camera on standby. Adjust settings and power off the camera when not in use to conserve battery.
Ensure the lens contacts are clean, use the central focus point for accuracy, and select the appropriate autofocus mode (One Shot for still subjects, AI Servo for moving subjects).
Check the battery is charged and inserted correctly. Try using a different battery if available. If the issue persists, ensure the battery compartment and contacts are clean.
Use a USB cable to connect the camera to your computer, or remove the SD card and use a card reader. You can then copy files directly or use Canon's software for transfer.
Increase the ISO setting, open up the aperture (use a lower f-number), and slow down the shutter speed. Consider using a tripod or image stabilization to prevent blur.
Avoid using live view for long periods, take breaks between shots, and ensure proper ventilation. Using an external battery grip can also help reduce heat buildup.
Press the 'Drive' button and select the continuous shooting icon. This enables the camera to take multiple shots in quick succession while the shutter button is held down.