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Hot shoe

Written by: Nate Torres

Last updated: November 05, 2024

Despite its simple appearance, the hot shoe can be a powerful tool for attaching various accessories to your camera, from external flashes to microphones, GPS units, and more. So what's a cold shoe?

A hot shoe sparks the light, while a cold shoe holds it tight...


What is a hot shoe?

The hot shoe is a connector slot usually fitted to the top of your digital or analog camera. You will mainly use this to connect various devices that work with your camera.

Hot shoe on a camera.
Hot shoe on my camera

Your camera will also have different features depending on the contact of your hot shoe. For example, metal contacts allow devices to communicate with your camera.

You will usually find your hot shoe on the top of your camera. Nikon and Canon DSLRs will most likely have their hot-shoe above the pop-up flash and right in the center of your camera.

A hot shoe can also be equipped with external flashes, such as the Canon Speedlite. Hot shoe photography can be accomplished by attaching an external flash.

Speedlight on a hot shoe on a camera.
Speedlight on my hot shoe (Canon 6D Mark II)

Since the hot shoe holds it in place, it is basically TTL shooting, which means through the lens. The hot shoe from most manufacturers allows two-way communication between your camera and flash, and you can use this to adjust the power and flash settings.

Oh yeah, I forgot to mention that you can also use hot shoe flashes that can be triggered by radio slaves (PocketWizards, etc.) or external cables.

Remote flash trigger on a hot shoe on a camera.
Remote flash trigger on my hot shoe

The aforementioned cables effectively simulate the camera’s hot shoe to trigger flash bursts.

Despite the cables disabling the two-way communication, at least it triggers the flash when off-camera.


Why is it called a hot shoe?

The definition of a hot shoe is that it's a U-shaped bracket at the top of your camera, with electronic contacts.

Back in the old days, hot shoes did not exist and were actually called cold shoes.[1] A cold shoe or accessory shoe is a U-shaped bracket that does not use electronic contacts. Instead, it used a wire to connect the camera to the flash socket.

Electronic contacts evolved the once cold shoe into the hot one we all know and love.

Interestingly, every hot shoe from a manufacturer is specifically designed for its brand.

They are most likely to boost their profits, provide full functionality, and be compatible. Despite this, you can still slap a Nikon Speedlight on a Canon DSLR.

Take note!

Just do not expect the Speedlight to perform at its fullest potential in fact you will need to get a remote trigger.

Luckily, there are also various third-party flashes available in the market. At a much more affordable price point.

Speaking of cold shoes, what's the difference between a hot shoe and cold shoe?


Hot shoe vs. cold shoe

A hot shoe has electrical contacts to connect and control external devices like flashes, while a cold shoe is simply a mount without any electrical connections, used to hold accessories.

Difference between a hot shoe and cold shoe.
Hot shoe vs. cold shoe

Here's a table comparing the difference between a hot shoe and cold shoe:

FeatureHot ShoeCold Shoe
Electrical ContactsYes, for connecting and controlling external devices like flashesNo, it is purely a mount for holding accessories
FunctionalitySupports triggering and communication with external flash units and other devicesOnly used for mounting accessories like microphones, lights, or monitors
Common UsageUsed with cameras to mount and trigger external flashes or control other accessoriesUsed to mount non-electronic accessories that don’t require power or control signals
Power SupplyCan supply power and signals to connected devicesDoes not supply power or signals
ComplexityMore complex due to the need for electrical connectionsSimpler, as it is just a physical mount
CostGenerally more expensive due to the added functionalityTypically cheaper as it lacks electrical components

A cold shoe is basically a hot shoe without the two-way communication feature. One or two wires will normally connect the equipment. Some examples of cold shoe items are:

  • Small cameras (Go Pro, etc.)
  • External microphones
  • Devices that help you get better pictures (e.g., MIOPS Smart Trigger)

The cold shoe is commonly used to keep the additional item close to the center of the camera’s gravitational area. Allowing the device to stand straight and not lean to a certain side. Plus, you can even use multiple items at the same time.

This allows you to be a sort of jack of all trades.

Do you need more lighting and audio quality while shooting a video? Then, equip yourself with an external microphone and additional lights.

Different types of cold shoes require their way of installing them. Luckily, it is quite easy to do and straightforward. You could also fit it on any camera with a standard hot shoe since its bracket size is universal.

Your most basic bracket can be easily slid into your hot shoe; some offer a thread mount that can be screwed onto a tripod. The most complex designs will usually have some knobs or screws that can be adjusted. Complex cold shoe designs are safer because they lessen the probability of your gear falling off.

Every situation requires different items, but with the cold shoe, everything suddenly becomes easier.


How to use a hot shoe?

The hot shoe on a camera can be used to attach various accessories and can be used for various reasons:

1. External flash Unit

To use an external flash unit with a hot shoe, attach the flash to the camera's hot shoe by sliding it into place and tightening the locking mechanism.

Next, power the flash and set it to the desired mode, such as TTL (through-the-lens) or manual. When taking a photo, the flash will automatically fire when needed based on the camera's settings and the ambient lighting conditions.

We'll touch more on this later.

Speedlight on a hot shoe on a camera.
Speedlight on my hot shoe (Canon 6D Mark II)

2. External microphone for audio

To use an external microphone with a hot shoe, first ensure that the microphone is compatible with the camera and has the appropriate connector, such as a 3.5mm jack or XLR plug.

Next, attach the microphone to the camera's hot shoe by sliding it into place and tightening the locking mechanism. Power on the microphone and adjust its settings as necessary, such as the sensitivity or directional pattern. When recording audio, the microphone captures the sound and transmits it to the camera. Using an external microphone can significantly improve the audio quality of recordings, especially in noisy or crowded environments.

External microphone on a hot shoe on a camera.
External microphone on hot shoe

3. Remote trigger

A remote trigger can be mounted on the camera's hot shoe to trigger the camera's shutter from a distance wirelessly.

The remote trigger can communicate with the camera through radio or infrared signals, allowing the photographer to take photos without touching the camera. This is useful in situations where camera shake should be minimized, such as long exposures or when using slow shutter speeds.

Remote flash trigger on a hot shoe on a camera.
Remote flash trigger on my hot shoe

4. GPS unit

A GPS unit can be attached to the camera's hot shoe to add geotagging information to the photos taken with the camera.

The GPS unit will record the location and time data, which can then be embedded into the image metadata.

This allows the photographer to keep track of where each photo was taken, which can be useful for organization and for sharing the location information with others.

GPS unit on a hot shoe on camera.
GPS unit on hot shoe

What is a hot shoe cover?

One accessory that you must have is a hot shoe cover. Despite its minuscule figure, it works wonders in maintaining the longevity of your hot shoe.

As the name suggests, a hot shoe cover covers the hot shoe. Fit it properly, and it will protect your hot shoe from dust and moisture, which can lead to corrosion.

Hot shoe cover.
Hot shoe cover

In addition to those elements, the cover will also protect the hot shoe from scratches. Even better, the cover will prevent the hot shoe frame from bending from sudden contact with a solid object.

In short, please buy and use them effectively.


What does a hot shoe adapter do?

Hot shoe adapters are commonly used for mounting points on your camera. Using these adapters, you can easily stop your camera from affixing flash units or other compatible camera peripherals.

Hot shoes have these similar to a square-shaped, inverted, and metallic “U.” In the center of the “U” section, you will see a metallic contact point.

The point itself can synchronize standards akin to non-third-party (brand-independent) flash units.

Most of the time, the metallic part of the adapter and the metallic part of a contact point are separated from each other. They are only brought together when they are intended to be operated.

By shorting them with each other, a circuit is created between the adapter and flash unit. This will allow you to use the flash function at its best capacity.

Some photographers recommend that you use hot shoe adapters from reputable brands such as Canon, Nikon, or Kalt. But feel free to experiment with third-party hot shoes. But read the brand's cautionary notes.

Camera manufacturers do not really recommend their cameras be paired with flashes from other brands. You can call this a marketing trick, but it also makes sure that you get full use of your external flash.[2]


What is an external hot shoe?

After hours of sleuthing around Google, I have not been able to find information about the external hot shoe.

I do have some of my own interpretations of it. It will either refer to external flashes placed on top of your hot shoe or another name for the hot shoe adapter.

External flashes are most commonly placed on top of your hot shoe, giving them the (I suppose) name of External Hot Shoe. These flashes are better than your regular built-in flash for several reasons:

1. Light intensity

The external flash on a hot shoe has higher light intensity; it can easily light up a whole room. The lens you use will not be a concern anymore since the range is pretty wide, too, unlike the built-in flashes.

Your built-in flash may have some benefits if you use a standard zoom lens, but the flash is simply not optimal for your wide lens.

To compare both flash abilities, the flash-to-subject distance of a built-in flash is around 1 to 3 meters at an ISO of 100. On the other hand, the external flash can reach a flash-to-subject distance of 10 meters.

Using an external flash will make your subject well-lit, even at a distance.

2. Light direction

Using an external flash on a hot shoe, you now have control over light direction and the extreme flexibility of bouncing off your flash wherever you want.

Coupled with its intense light, you can bounce your flash on far-away objects or subjects for a more natural light setting. Using an External hot shoe allows you to turn your creativity into reality.

The various options and flexibility of the external hot shoe open up many new possibilities in your hot shoe photography. You should also consider the weight that you want to carry before opting for an external flash.

It is not the smallest and lightest accessory, so if you decide to bring external flashes, be prepared to add an extra bag to your trip.


Are Nikon and Canon hot shoes the same?

I apologize for being the bearer of bad news, but unfortunately, they are different.

Canon and Nikon have their pins (non-sync contacts) in different areas. This means that if you put your flash on the hot shoe, there will be no communication or electrical contact.[3]

You can still swap either brand’s flash (Nikon or Canon) on a Nikon or Canon hot shoe. But be ready to lose some features that may be a deal-breaker:

  • Lose your access to e-TTL.
  • No more high-speed sync (FP)
  • No more menu commanding the flash.
  • Lose access to flash exposure compensation.
  • Unable to use the 2nd curtain with a Nikon flash while equipped with a Canon Hot Shoe

So, basically, you cannot use any feature that requires communication between the camera and flash, except the trigger. You can easily understand it by looking at the respective brands of hot shoe and flash foot.

All brands have the standard must-have basic sync at the same location, allowing the flash to trigger as it should. Any sophisticated sync and metering function probably will not work, although it depends on the camera and flashes you choose.


In conclusion, here's the recap:

  • The hot shoe definition: a connector slot between your camera and a device (mainly SpeedLights, Flashes, etc.).
  • By adding a two-way communication feature, the cold shoe has now evolved into a hot shoe.
  • Hot Shoe covers are essential because they prevent corrosive materials from entering the hot shoe. If fitted correctly, they can also protect solid objects.
  • Hot Shoe adaptors are useful to prevent your camera from affixing flash units or some compatible camera peripherals.
  • The external hot shoes are interchangeable with the word external flash since they are both mounted on the hot shoe. These flashes can easily help when you need more creative options and a better flash than your built-in camera.
  • The main difference between a cold shoe and a hot shoe is their abilities. Cold shoes do not provide any two-way communication for your devices. Depending on your circumstances and photography niche, this feature may help you.
  • Nikon and Canon hot shoes are different, using a different Nikon flash on a canon hot shoe can work. Although there are restrictions on some features (except the basic ones).

And that’s a wrap! Hot shoes are an essential part of your camera that may become handy once you learn more about it. Hot shoes are criminally underrated and are often forgotten despite their utility. Who knows, this article may inspire you to carry some cold shoes to aid your photography journey.

I hope this article helps you understand the camera’s hot shoe. Have a great day.

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