If you own a Canon camera, using the built-in flash can greatly improve your photos in low light or when you need fill-in light. However, many new users find the flash controls confusing, especially since settings can change based on camera model and shooting mode. This guide explains, step by step, how to turn on the flash on most Canon cameras, with tips to help you get better results.
Table of Contents
Understanding Canon Camera Flash Types
Most Canon cameras have either a pop-up flash or a hot shoe for external flash units. Entry-level DSLRs and mirrorless models usually include a built-in pop-up flash, while advanced cameras expect you to attach an external flash. Always check your camera’s manual to identify what flash options are available.
Comparing Flash Types
| Flash Type | Best For | Common Models |
|---|---|---|
| Pop-up (Built-in) | Casual, travel, quick snapshots | Rebel series, M50 |
| External (Hot Shoe) | Professional, creative control | 5D, R6, 90D |
Turning On The Built-in Flash
The process depends on your camera model and the selected shooting mode.
- Set the Mode Dial: Switch to P (Program), Tv (Shutter Priority), Av (Aperture Priority), or M (Manual). In fully automatic or scene modes, the camera may control the flash for you.
- Locate the Flash Button: Look for a button marked with a lightning bolt symbol (âš¡) near the lens. On some models, this button is on the left side of the camera body.
- Press the Flash Button: The flash should pop up automatically. If nothing happens, make sure your camera is not in a mode that disables the flash.
- Check the LCD or Viewfinder: A flash icon often appears, signaling the flash is ready.
Shooting Mode And Flash Availability
| Shooting Mode | Flash Control |
|---|---|
| Auto | Camera decides |
| P, Tv, Av, M | User controls |
| Scene (Portrait, Night) | Varies by mode |
Credit: community.usa.canon.com
Using An External Flash
If your camera does not have a built-in flash, you need a compatible Canon Speedlite or third-party flash.
- Attach the flash to the hot shoe.
- Turn on the flash unit.
- Set your camera to a creative mode (P, Tv, Av, M).
- The camera will now trigger the flash when you take a picture.
Practical Tips For Flash Photography
- Avoid using flash when the subject is too far (over 10 feet/3 meters) as the light will not reach.
- To avoid harsh shadows, try bouncing the flash off the ceiling or wall if your flash head tilts.
- Always lower the flash manually after use to protect the mechanism.

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Frequently Asked Questions
Why Won’t My Canon Camera Flash Pop Up?
Some modes, like Silent Shooting or Sports, disable the flash. Also, check if anything is blocking the flash mechanism.
How Can I Adjust Flash Power?
Use Flash Exposure Compensation found in your camera’s menu. This lets you make the flash output stronger or weaker.
Can I Use Flash With Burst Mode?
Most Canon cameras limit flash during continuous shooting. The flash needs time to recharge between shots.
Is External Flash Better Than Built-in?
External units offer more power, flexibility, and softer light. For serious photography, an external flash is recommended.
Where Can I Find More Details?
Visit the official Canon USA website for model-specific guides and support.
With these steps and tips, you’ll have more control over your Canon camera’s flash, making it easier to capture bright, well-exposed photos in any situation.