Flash on a Canon camera – Complete Guide

There may be occasions when you’ll need to use your built-in flash on a Canon camera to acquire the photo. This situation rises in low light or in dark. Therefore, one must know how to use the built-in flash of a Canon camera to get better results at any place.

How to turn the flash on a canon camera?

You can turn on the built-in flash of a canon camera in this easy way :

  • The built-in flash will be released to its ready position with a short push of the pop-up flash button.
how to turn on flash on canon rebel t7
  • The pop-up flash is in active mode.
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How to turn off the flash on canon camera?

You can disable the built-in flash of a canon camera in the following easy way:

  • To begin, switch on the camera.
  • Find the “Flash control” by pressing the < Menu > button.
how to turn on flash on canon rebel t6
  • Now hit the < SET > button.
  • The “ Flash Firing Option will “ now appear.
how to turn of flash on canon rebel t6
  • Set it to disable
how to turn on flash on canon eos m50

Different Flash modes in Canon cameras

When I initially acquired my camera, I didn’t have time to verify the settings on my may Canon. I was too preoccupied with taking pictures to notice anything else. However, photographing doesn’t operate in the same way. Consider yourself at a birthday celebration or in a theatre. When everyone realizes that the flash is ruining the ambiance of a birthday celebration or a movie theatre, there will be a terrible outburst.

Let’s dive in to see how differently flash works on alternative shutter speeds of exposure mods.


Despite the fact that it is an auto mood, the Canon provides auto flash mood in three distinct methods.

Based on the lighting circumstances, the auto Flash Mood will choose when to shoot the flash.

— The ON flash mood will always fire the flash, regardless of how light the environment is. Even in bright situations, we utilize it to illuminate people’s faces.

— The OFF flash mood prevents the flash from shooting. When the flash is elevated even when the camera is turned off, it might be perplexing. However, this only occurs if your prior capture was made with the flash turned on.

Portrait, Night Portrait, Closeup, Scene Intelligence

The camera flash works fine for portrait, night portrait, closeup, and scene intelligence mods of canon camera. If the camera feels more light is required in certain moods, it boosts the flash.

Sports and Landscape

The canon camera does not offer any flash in this sports and landscape mode.

Program ( P )

1/60 of a second is the shutter speed that is offered in the Program mode of the Canon camera. By pushing the Av button on the back of the camera while moving the Main dial, you may vary the aperture, but you risk over-or underexposing your picture.

Shutter Priority ( Tv )

In the shutter priority(Tv) mode of the canon camera, you may set the shutter speed to anything from 1/200 of a second to 30 seconds. The lens aperture will adapt appropriately, however, the lens will normally be set to its maximum aperture for lengthy exposures.

Manual ( M )

Manual mode for the canon camera operates similarly to aperture mode, with a range of 1/200 to 30 seconds. The only difference is that the f-stop must be manually set.

Aperture Priority ( AV )

Depending on your demands, this mode provides three preset options for changing the shutter speed while utilizing the flash. The goal of this option is to let you use whatever aperture you choose while still obtaining decent flash exposures.

In AV mode, the default setting is Auto, which changes from 1/200 to 30 seconds depending on the available light. The shutter speeds will increase as the aperture grows lower.

You may also pick between two speed-limiting options. The first is Auto 1/200–1/60 Sec. This reduces the shutter speed to 1/60 of a second at the most. The shutter speed indicator will blink if you have the aperture set to an f-stop that has a very tiny opening for a good exposure, indicating that you are risking underexposure.

For all other exposures, the camera will adjust the shutter speed to anywhere between 1/60 and 1/200. 1/200 sec is the alternative option (Fixed). No matter what the f-stop is set to, this setting keeps the shutter speed at 1/200 of a second. Your flash will attempt to adjust its power output to match the requirements of the setting you’ve chosen.

Setting the sync speed when using flash in Av mode

  • Go to the first shooting menu by pressing the Menu button. Press the Set button after highlighting Flash Control (A).
  • Choose Flash Sync. Speed Using the Cross keys and the Set button in Av Mode (B).
  • Using the Cross keys, choose the desired Av sync speed and hit Set once more (C).

Metering Modes

E-TTL II (Evaluative Through The Lens) metering is used by the built-in flash to calculate the right amount of flash power to output for a satisfactory exposure. When you push the shutter button, the camera immediately changes focus while receiving data from the whole picture to determine how much ambient light there is.

When you fully depress the shutter button, a pre-flash happens to meter the flash’s light off the subject and determine how much power is required to balance the subject with the ambient light. With the exception of Manual mode, this applies to all of the modes in the Creative zone.

The flash meter mode is set to Evaluative by default. The meter may be set to Average mode, however, this is something you should generally avoid. The E-TTL option will give you the greatest results.

If you need to meter off your subject and then recompose your picture in the viewfinder, you may use the Flash Exposure (FE) Lock to meter off your subject and then recompose your image in the viewfinder.

This feature functions similarly to the Automatic Exposure (AE) Lock feature explained in Chapter 6, “Say Cheese!”

Using the FE lock feature

Using the FE lock feature on a canon camera can be done in the following ways:

  • Focus the camera on the region where you want the flash to be exposed. This is usually your subject.
  • To get the exposure setting, press the AE/FE Lock button (star.jpg) (near the top right on the back of the camera). FEL (Flash Exposure Lock) will display quickly in the viewfinder after the flash fires a little burst to analyze the exposure. In addition to the flash sign, the AE/FE Lock symbol (star.jpg) will display in the viewfinder.
  • Recompose the scene as desired, then push the shutter button all the way down.
  • Because the FE Lock is reset after each exposure, you must perform these procedures each time you need to lock the flash exposure.

All discussion till here was about the information regarding flash on a canon camera. Now, there are a few most relevant and asked questions about it.

Why my camera flash is not working?

To restore your camera’s original settings and make the flashlight operate, clear the camera app data. To clear the data from the camera app, go to SETTINGS >>>. ALL >>> APPLICATION MANAGER >>> CAMERA DATA THAT IS CLEAR. If your default flashlight switch isn’t functioning, you may utilize another flashlight app.

Does flash affect the battery lasting time of your camera? 

YES. Using flash affects the battery life of your camera seriously. It reduces the battery lasting time by several minutes. It is recommended to keep the flash off when you are running low on battery and you do not have another battery or a battery charger.

To avoid this uncomfortable situation, a professional photographer must be aware of how to charge the camera battery without a charger.

Does canon mirrorless have flash?

Canon’s black EOS M Mirrorless Digital Camera Kit with 22mm f/2 Lens and 90EX Flash combines a mirrorless digital camera with a wide-angle prime lens and a Speedlite 90EX flash unit.

Do all flashes work on any camera?

A little-known fact: Almost all flashes designed for digital cameras will function in manual mode with any camera, regardless of the manufacturer. Learn how to make a FrankenFlash that you can mix and match! Every camera has a flash sync speed, which is generally between 1/250 and 1/60 seconds.

Are all Canon flashes compatible with Canon cameras?

This implies that any brand of flash will work in manual mode with any brand of the camera as long as they both employ the same standard central pin firing mechanism. The center pin of the Canon 5D Mark IV (left) is gone in the new Canon SL3 (right).

How long does a camera flash last?

A full-power flash from a contemporary built-in or hot shoe attached electronic flash typically lasts around 1ms or less, hence the minimum exposure period for even exposure across the sensor with a full-power flash is approximately 2.4ms + 1.0 ms = 3.4ms, equating to a shutter speed of about 1/290 s.

Do you have to use flash on a film camera?

Use the flash sparingly if you want to capture a photo without being spotted. Instead, increase the ISO and wider the aperture to capture well-exposed photographs even in low-light situations. It’s a typical flash infringement to do so.

Do you use flash for wedding photography?

At a wedding, flash might be inconvenient. However, it may be beneficial for filling in light during the noon sun, adding light to a gloomy location, and creating intriguing and exciting visuals throughout the reception.

How long does a canon flash last?

Canon flash normally lives for a very long time. It should last at least 100,000 pops, and maybe much more.

What happens when a camera flashes?

The electrical circuit boosts the electrical current in the power supply when you activate your flash and hit the shutter button. This provides energy to the xenon gas, causing it to flash brightly.

Do Camera flashes burn out?

YES. Camera lights do, in fact, die. The obvious issue that arises when you see bouncing flashes behind you is whether they shoot at full or near full strength. If you’re shooting events where you’ll need to use your on-camera flash repeatedly, they’ll take a battering and may even burn out.


It’s not difficult to deal with flash on a canon camera. You can turn the flash on and off easily by simple methods. Now you have an understanding of the camera modes that offer flash and their conditions. The sports mode and landscape mode d not offer flash.


How does a camera flash work?

The electrical circuit boosts the electrical current in the power supply when you activate your flash and hit the shutter button. This provides energy to the xenon gas, causing it to flash brightly.

Do mirrorless cameras have flashes?

NO. In practically every concrete way, mirrorless cameras have caught up to DSLRs, but there’s one function that certain pros want that none of them offer: flash AF illumination.

How do you use camera flash outside?

Reduce the shutter speed by one stop, from 1/100′′ to 1/60.” This will give your shot an extra stop of ambient light. More Ambient and Flash Light = Aperture. From f/11 to f/4, increase the aperture by three stops. This will give your image three stops of ambient and fill the flashlight.