Both these cameras we will be looking at in this article today – Canon EOS M6 vs M100 – are manufactured by the same company, belong in the same series, and were even launched in the same year.
So, you already know that these cameras have a lot in common. But not to worry, we will be telling you the differences that exist them and how those differences will affect you and your photography.
If you need to make a quick decision, pay close attention to the next few sections, they will be aiding you in doing just that.
Enough talk already, let us dive right into the business of the day.
Table of Contents
Comparison Overview – Canon EOS M6 vs M100
Like we already mentioned, these cameras were launched in the same year – 2017. The EOS M6 was announced in February, while the M100 was introduced later that year in August.
Therefore, it is expected that these cameras are on par with each other when it comes to technology level and functionality.
And well, that is actually true to a very large extent. Both these cameras boast of the same ISO range, the same video resolution, screen resolution, and sensor resolution.
They also both come with 2 different wireless connectivity options, remote control function, video stabilization, and a couple other things we will be discussing later in this article.
So, if these cameras are this similar, what then sets them apart?
Well, the EOS M6 is the only one of the two cameras with auto exposure bracketing. This already tells you what camera will be giving you better results in HDR photography.
It is also the only camera with an external microphone jack, and with an external flash hot shoe.
On the other hand, the EOS M100 is the lighter of the two cameras. Yes, they are both lightweight cameras, which is something you expect from a mirrorless camera, but this one weighs even less than its counterpart.
Price/Value Ratio — Canon EOS M6 vs M100
Which Camera Offers More Value for Money: Canon EOS M6 or M100?
When it comes to getting value for money, the M6 is the go-to option. It offers more unique features, and it functions better. So, it costing more than the M100 is absolutely justified.
Before you decide, though, do check out the table below. There, we place the specifications of these cameras side by side to give you a quick run-through of how they compare.
Comparison Table – Canon EOS M6 vs M100
|Canon EOS M6||Canon EOS M100|
|Camera weight||0.86 pounds (390 grams)||0.67 pounds (302 grams)|
|Camera dimensions||4.4 by 1.77 by 2.677 inches||4.25 by 1.378 by 2.638 inches|
|Auto exposure bracketing||Yes||No|
|External flash hot shoe||Yes||No|
|Burst mode speed||9 frames per second||6.1 frames per second|
|External microphone jack||Yes||No|
|JPEG buffer||27 shots||91 shots|
|Viewfinder||Option for an external one||None|
If you want to find out more about how these cameras compare, check out the Canon EOS M6 vs M100 comparison video below.
Which Is Better Under What Circumstance – Canon EOS M6 vs M100?
|Canon EOS M6||Canon EOS M100|
| If you are looking to do a lot of HDR photography, we would totally recommend this camera.|
With auto exposure bracketing, this camera promises to give you really lovely results while you shoot very conveniently.
Without this feature, getting photos with different exposure settings is double the stress, and half the efficiency.
| If you will be holding your camera in your hand for long periods of time, then you must be after the more lightweight of them.|
If you have small palms, then you must be after the more compact of them.
Well, in those two cases, the EOS M100 is the one you need. It doubles as the more lightweight and more compact camera.
| For better audio quality in your recordings, this is surely the camera to go for.|
The internal microphone is really good, but that is not even the fun part.
This camera comes with an external microphone jack which gives you an option to boost audio quality beyond what the internal mic can ever offer.
| For a more undisturbed burst mode shooting, this is the camera to get. The camera’s buffer can hold up to 91 shots per time while shooting JPEG.|
This invariably means you will be able to go longer shooting continuously with this camera before being halted, than with the M6 whose buffer can only hold 27 shots per time.
Common Features – Canon EOS M6 vs M100
The Canon EOS M6 and M100 have the following similarities:
i. Mirrorless cameras
ii. Touch screen
iv. RAW support
vi. Built-in flash
vii. Face detection focus
viii. Articulating screen
ix. HDMI output
x. Built-in Wi-Fi
xi. Near field communication
xii. Built-in Bluetooth
xiii. Remote control
The first similarity, of course, is that they are both mirrorless cameras. And a mirrorless camera is one which does not have a reflex design.
What this means is that when a shot is taken with a camera like this, light is captured by the lens and is sent straight to the electronic viewfinder or the LCD screen.
And this is because there is no mirror for the light to be first bounced on; this is something you only find in DSLR cameras.
This lack of a reflex design is both good and bad. Because of it, mirrorless cameras are generally more lightweight and more compact than DSLRs.
However, that is also the reason that the average mirrorless camera has a poor battery life and an average autofocus system.
DSLRs are the cameras with reflex designs, and in case you already didn’t know, there is a very hot debate in the world of photography which of these camera types is better.
Well, we won’t be joining in that debate in this article, but if you want more scoop on this DSLR vs mirrorless rivalry, watch the video below.
Now, what features are you sure to see in both these cameras – Canon EOS M6 vs M10?
The LCD screen of these cameras are touch sensitive, thereby, offering you ease and convenience while you operate your camera.
So, if you ever get confused with the buttons, the touch screen will always be there to save the day.
And we can tell you that the touch screens of these cameras are easy to use and do not give much trouble.
Customers who have used these cameras have confessed to this.
If you are in the market for a new camera, the sensor is one thing you have to pay close attention to.
And well, these cameras – Canon EOS M6 vs M10 – offer the exact same thing in that regard.
They each come with an APS-C CMOS sensor. And even more so, each of them boasts of a 24 mega pixel maximum sensor resolution.
This is really impressive! These cameras will be particularly amazing to take photos with when the subject is far away from the lens, because of their sensor types.
And with 24 mega pixels, these cameras will surely be capturing a lot of details in the photos taken.
Still speaking of details, it is not enough to have a camera with a high sensor resolution, because if those photos are compressed, you lose many of those details.
This is why this feature comes as good news. Thanks to RAW support, you can choose to take photos and have them store with all the details intact.
That is, the images remain untouched and uncompressed, so, you can decide to do whatever you want whenever you want to.
However, the small price to pay for this much quality is storage space. RAW format files are very large files, and so, will eat up your storage space very rapidly.
This is also the reason why a camera’s buffer fills up more quickly when shooting RAW compared to when shooting JPEG.
This is one feature that allows you get really creative with your photography.
With time-lapse, you are able to play around with time in your videos. That is, a recording that ought to be hours long, could be made only minutes long with this feature.
This is a feature very often used by nature and wildlife photographers, and it is one you get with each of these cameras – Canon EOS M6 vs M10.
You definitely are familiar with this feature and what it does, so, we won’t be saying much about it.
Anyway, you need to know that the built-in flash is not a permanent solution to your low light issues. Sometimes, the results you get with this flash will not be sufficient.
But well, sadly, only the EOS M6 provides an option to use an external flash. And this is the reason we would recommend it as the one for any type of flash photography you would like to do.
Face Detection Focus
This is a feature that you will find in many cameras, and even in smartphones these days.
What it does is easily decipherable from its name. It helps the camera’s lens detect and focus on the human faces in its frame.
This is what gives that professional feel to photos where the background is blurred out and focus is primarily on the face.
You probably can already see that this is a feature you would love if you intend to take a lot of portrait photos.
An articulating screen is an LCD screen which can be tilted, flipped, or rotated. And the angle to which it can be moved varies among cameras.
The aim is to help the photographer be more flexible while shooting. Taking shots from some angles can naturally be very difficult (high above your head, for example). But with an articulating screen, that can be done with ease.
The Canon EOS M100 comes with a screen that can be tilted up to 180 degrees, making it a good camera for selfies, and for getting photos from low angles.
The screen of the EOS M6, on the other hand, can be said to offer more flexibility, as it can be tilted up to 180 degrees upward and 45 degrees downward.
This not only makes it a great camera to take selfies with, but also to shoot with from very high or very low angles.
This is the port where you can connect an HDMI cable which can then be used to project the camera’s images to a screen or monitor.
Thanks to this, you can avoid taking the long route of first sending the images to a laptop before projecting them to the screen.
The Wi-Fi in your camera makes it possible for you to connect it to a nearby device without having to use cables.
Wireless connectivity makes transfer of files super easy and super convenient. And this is something you won’t be missing out on with these cameras.
The Wi-Fi is pretty easy to set up and with just a few steps, you can share countless photos with your smartphone.
Also, thanks to this, you can share photos to the internet really quickly and without having to do so much.
Near Field Communication
This feature makes the process of connecting your camera to a nearby compatible device even simpler.
With NFC, you can connect camera and smartphone with just one touch. That is, you will just have to touch the NFC icons of both devices against each other, and you are connected.
Anyway, to be able to use this (or even the built-in Wi-Fi), you have to have the camera app installed on your device. And in this case, that will be the Canon Camera Connect app.
Also, you have to ensure that your device is NFC compatible, because although smart devices are automatically Wi-Fi enabled, not every one of them is NFC compatible.
It is not every day you see cameras that offer you two different options for wireless connectivity, this is why these cameras – Canon EOS M6 vs M100 – ought to be considered special.
In addition to the built-in Wi-Fi they come with, these cameras are also Bluetooth enabled.
Bluetooth is a household name when it comes to wireless connectivity, and it works here just like it works everywhere else.
So, if your camera’s battery is low (which is something that will happen a lot of times considering the battery capacity of these cameras) and the Wi-Fi can no longer function, you can still use Bluetooth to transfer files to your smartphone.
Therefore, with this, you can say a permanent goodbye to USB cables for transfer of files.
This is a function that works thanks to the built-in Wi-Fi.
After you have created a wireless connection between your camera and your smartphone using the built-in Wi-Fi, you could decide to shoot using that smartphone.
If, for example, you have to stay quite some distance away from your camera in order to get the best shot (might often occur in wildlife photography), this is the function that will be allowing you that luxury.
After the necessary setup has been done, you will be able to see what the camera’s lens is capturing on your smartphone’s screen. And then you can go on to adjust some settings and capture the shots you like.
This function can be very helpful in many areas of photography. It can also be so much fun to use, too.
Unique Features – Canon EOS M6 vs M100
The following features distinguish the Canon EOS M6 from the M100:
i. Auto exposure bracketing
ii. External flash hot shoe
iii. External microphone jack
Auto Exposure Bracketing
This is a feature that allows you to shoot better in difficult lighting situations.
When you are not exactly sure what exposure setting will be producing the best photos in some types of lighting, it will always be best to shoot using this feature.
When this feature is properly set up, you can get a number of shots (usually 3) just with a click of the shutter button.
So, basically, you can get underexposed, over exposed, and normally exposed versions of that one image.
Furthermore, it has to be said that these things can be done manually, but of course, that will be a lot more stressful and more time consuming.
Of these two cameras – Canon EOS M6 vs M100 – only the EOS M6 comes with this feature. This, therefore, is the reason we would recommend this one for HDR photography.
External Flash Hot Shoe
The Canon EOS M6 is the only one that comes with this feature. This means that it is the only one that gives you an option of boosting your camera’s lighting beyond what the built-in flash can give.
Like we said, the built-in flash will not always give the best results, but with an external flash, you can achieve a lot more.
Therefore, if you have plans to do a lot of flash photography, the EOS M6 would be the easy choice for you.
External Microphone Jack
This same camera – the Canon EOS M6 – also allows you improve on the audio quality you are able to get when you record.
So, if you are shooting outdoors and you want good noise cancelation, you can get that by getting a good external microphone and connecting it to your camera.
Unique Pros – Canon EOS M6 vs M100
Unique Pros Of The Canon EOS M6 – Canon EOS M6 vs M100
Which has a Secondary Lighting Option: Canon EOS M6 or M100?
The Canon EOS M6 comes with an external flash hot shoe that can be mounted on the camera to provide a secondary lighting option, unlike the EOS M100.
This helps you get brighter images, and generally better results when doing flash photography.
Which Can Accommodate an External Viewfinder: Canon EOS M6 or M100?
Even though the Canon EOS M6 and M100 do not come with an electronic viewfinder, the former is specially designed to accommodate an external one.
If you think a viewfinder would be very essential to your shooing, you could get an external one and mount it on the hot shoe.
Of course, a built-in one would have been preferred, but having an option to use an external viewfinder is definitely better than nothing at all.
Which is Good for HDR photography: Canon EOS M6 or M100?
With the auto exposure bracketing mode of the EOS M6, it is suitable for HDR photography. However, the M100 does not have this feature, so HDR photography is impossible with it.
Which has a Better Audio Quality: Canon EOS M6 or M100?
With the external microphone of the EOS M6, its audio quality is better than that of the M100.
Using an external microphone is sure to get you better audio quality than when you have to rely solely on the camera’s internal camera.
And of course, the microphone jack is what makes it possible that you can use an external microphone with this camera.
Unique Pros Of The Canon EOS M100 – Canon EOS M6 vs M100
Which has a Larger JPEG Buffer: Canon EOS M6 or M100?
The buffer of the EOS M100 can accommodate up to 91 JPEG shots at a time. So, this camera has a 6.1 frames per second burst mode speed, which means the camera can continuously shoot for 15 seconds before it stops to empty its buffer.
On the other hand, the M6 can only shoot continuously on burst mode on about 3 seconds.
While you shoot on burst mode, the size of the camera’s buffer is one thing to be considered. It determines how often your shoot will be paused, or if it will at all.
The buffer is where the photos are temporarily stored to ensure that continuous shooting goes on smoothly.
But at some point, when the buffer gets full, the shoot will be halted to allow the camera empty the buffer by transferring the files to their place of permanent storage.
Now, as you must have already been able to figure out, the bigger your camera’s buffer, the longer your continuous shoot will be. So, yes, a large buffer is good news.
Anyway, do note that the buffer usually accommodates more JPEG shots than RAW ones per time, because the earlier format is usually not as large as the latter.
Unique Cons – Canon EOS M6 vs M100
Unique Cons Of The Canon EOS M6 – Canon EOS M6 vs M100
Small JPEG Buffer
We already hinted a little bit about this in the previous section. This camera’s buffer can accommodate only 27 shots per time.
And like we already said, going only 3 seconds in burst mode shooting before that pause can be very frustrating. Not good from Canon.
Unique Cons Of The Canon EOS M100
The following are the disadvantages of choosing the Canon EOS M100 over the M6:
i. No viewfinder
ii. No external flash hot shoe
iii. No external microphone jack
iv. No auto exposure bracketing mode
This camera does not come with a viewfinder, and unlike the EOS M6, it does not give you an option to attach an external one.
What this means is that you will have to always use the LCD screen to shoot. This can be very frustrating when you are shooting outdoors on really sunny days.
Some might not mind the absence of a viewfinder, but we think there should have, at least, been an option to attach an external one.
Anyway, if it is any consolation, the lack of a viewfinder makes the camera more compact and more lightweight.
No External Flash Hot Shoe
Speaking of lighting with this camera, you will be entirely limited to the built-in flash as it does not allow you use an external one.
Therefore, this is far from being a good choice for flash photography.
No External Microphone Jack
With this camera, you will not be able to use an external microphone to boost the quality of audio you get from your recordings.
Therefore, this might not be a good camera to record with in areas where there is a lot of noise.
No Auto Exposure Bracketing Mode
Because of the lack of this feature on this camera, it might not be your best bet to use for HDR photography.
Common Pros – Canon EOS M6 vs M100
|Canon EOS M6||Canon EOS M100|
|Affordable||This camera goes for just a little more than half a thousand bucks in the market, so, it definitely falls in the affordable bracket.||This one costs even less than the EOS M6.|
|Flexible shooting||The LCD screen of this camera can be tilted to 180 degrees upward and 45 degrees downward, making it great to use to record from awkward angles.||This camera’s screen can be rotated about 180 degrees. It is also great to use to record from different angles.|
|Good portraits||This camera, with its face detection focus feature, ensures that you can get the best results from portrait photography.||This camera will also be producing awesome portrait photos.|
|Convenience||The touch sensitive screen ensures that you can easily access your camera’s features without the use of buttons.||This is also a touch screen camera.|
|Selfie friendly|| This camera’s screen can tilt upwards such that it allows you easily take a selfie.|
Even more so, it comes with the self-portrait feature that ensures that the selfies look really good.
| This camera also comes with a tilting screen and the self-portrait feature.|
Therefore, it is good for selfies, and great for vlogging, as well.
|High image quality||With RAW support, you can get your images in their highest quality.||Same as the EOS M6.|
|Big prints||With a 24 mega pixel APS-C sensor, you will be getting big prints in photos taken with this camera.||This is also a 24 mega pixel APS-C sensor camera, and will be giving you big prints, too.|
|Stabilized videos||This camera comes with a built-in video stabilizer, and so, even if the camera shakes while you record, videos will come out looking good.||This also comes with the video stabilization feature.|
|High resolution screen||This camera boasts of a pretty high 1040k dots of screen resolution.||This also has a 1040k dots of screen resolution.|
|Creative shooting||Time-lapse helps you get creative with your recording.||This camera also comes with the in-camera time-lapse app.|
|Extend display||You can easily use an HDMI cable to extend the display of this camera to a larger screen.||You can also use an HDMI cable with this camera.|
|Wireless connectivity|| This camera provides you with two options for wireless connectivity – Bluetooth and Wi-Fi.|
Therefore, transfer of files from camera to smartphone will be super easy and super quick.
|This camera also comes with a built-in Wi-Fi and a built-in Bluetooth.|
|Easy connection||Thanks to the near field communication feature it comes with, you can create a one touch wireless with this camera.||This camera also has NFC that allows you create a wireless connection with just one touch.|
|Good primary lighting||The built-in flash helps you get pretty bright images in low light.||This also comes with a built-in flash.|
|Decent low light performance||This camera’s 100 to 25600 ISO range is pretty impressive and will be helping you get pretty good images in low light even without any source of lighting.||This camera also comes with a 100 to 25600 ISO range.|
|Good video resolution||1920 by 1080 is pretty impressive for video resolution.||This camera also has a 1920 by 1080 video resolution.|
|Lightweight||Weighing less than a pound, the EOS M6 is a camera you can hold for a long time without feeling any strain.||This camera is even more light weight and more compact than the EOS M6.|
|Remote control||You can have fun by using your smartphone to shoot, thanks to the remote control function.||You can also use your smartphone as a remote controlling device for this camera.|
Check out these comparison articles from our previous posts…
- Canon EOS M3 Vs M6 – Detailed Comparison
- Canon EOS M10 vs Sony a5000 – In-Depth Comparison
- Canon EOS Rebel T5 vs T5i – An In-Depth Comparison
- Canon EOS Rebel T5 vs Nikon D5300 –Detailed Comparison
- Canon EOS Rebel T6i vs Nikon D5300 – Detailed Comparison
- Canon EOS M10 vs Sony a6000 – A Detailed Comparison
Common Cons – Canon EOS M6 vs M100
|Canon EOS M6||Canon EOS M100|
|No image stabilization|| Although it comes with a built-in video stabilizer, it doesn’t come with an image stabilization feature.|
Therefore, if your camera shakes or moves while you shoot, it could greatly affect the quality of the photos you get.
So, we would recommend that you use stands for your camera when you can.
| This camera also was not made with a built-in image stabilizer.|
You could invest in getting external ones, though, if you find them very important.
|No top side LCD screen||This camera does not have a small screen on its top side that displays the settings being made on it.||This camera also does not come with this screen.|
|No panorama||There is no in-camera app with which you can create lovely panoramic photos.||Same as the EOS M6.|
|No built-in GPS||This means that you will not be able to geo-tag images taken with this camera.||This also will not be ab le to geo-tag photos with this.|
|No slow motion|| You won’t be able to record videos in slow motion with this camera.|
This might hinder your fun and creativity a little bit.
|You also will not be able to record videos in slow motion with this camera.|
|No headphone jack|| You won’t be able to use headphones to regulate sound while recording with this camera.|
This is surely not good news for videographers.
|You also cannot use headphones with this camera.|
|No weather sealing||This means that weather elements could easily enter the camera and cause harm to it.||Same as the Canon EOS M6.|
|Poor battery||You will only be able to get 295 shots per full charge of this camera’s battery. With this, you won’t be able to shoot for very long hours without having to recharge or replace the battery.||This camera has the exact same capacity as the EOS M6.|
What Do People Think About These Cameras – Canon EOS M6 vs M100?
|Canon EOS M6||Canon EOS M100|
|People seem to be excited about the compactness of this camera. They have also said that it is durable and produces images of high quality.||Many customers are in love with this camera’s compact body and its grip. Although some have said that it was too small for their big palms.|
| Vloggers seem to enjoy using this camera as a few have come out to compliment it as one which is great for that purpose.|
The good audio, good video, and selfie-friendly screen, are reasons they gave for this.
| Photographers have complimented this camera’s touch sensitive LCD screen.|
Many have said that if you are transitioning from smartphone photography, this just the camera to use.
Our Take – Canon EOS M6 vs M100
|Canon EOS M6||Canon EOS M100|
|What is there not like about the EOS M6? It has 2 options for wireless connectivity, auto exposure bracketing, and a lot more interesting features, all in a compact and lightweight body.||This camera is so easy to use, affordable, functional, compact, and can be much fun to use.|
| The options this camera offers are probably its strong points.|
This camera gives you options to use an external flash, an external viewfinder, and an external microphone.
These are all ways you can improve on the results you would normally get when taking photos or recording videos with this camera.
| This camera’s touch screen is easy to use and works pretty well, too.|
We love wireless connectivity with this one and also how pretty impressive it is on video.
It would just have been a lot better if this one came with an external microphone jack.
| We think the ISO maximum could have been higher.|
And we also think that an image stabilizer was necessary.
|We have the same reservation about the ISO maximum and image stabilizer of the M6.|
|We would recommend this one for events, flash photography, vlogging, sports photography, wildlife and nature photography, street and daily photography, and a number of other really interesting stuff you could do with a camera.||This camera will be good for sports photography, events, wildlife photography, vlogging, daily photography, and different forms of entry-level photography.|
| This camera is the better of the two in today’s comparison.|
It comes with more features, as you must have seen, and it is generally more functional.
| Although it comes second today, the EOS M100 is not a bad camera at all. It is probably the one to go for if you are on a tighter budget, or are a newbie.|
If you would like to see how this camera compares with another one in this series, check out this Canon EOS M3 vs M100 comparison article.
Canon EOS M6 vs M100 – FAQs
How Do I Download Pictures from My Canon Camera to My Mac?
To download pictures from the Canon M6 camera to a Mac device, plug a USB cable into the designated port on the M6. Next, plug the other end of the USB cable into the Mac’s USB port. After that, switch on the M6 camera and launch an app called iPhoto on the Mac device. The next step is to click on the “File” icon and after that, the “Import to Library” tab.
Under “Devices”, select the Canon M6 camera and then choose the desired photos for import. To select photos in batch, hold down the “Command” tab.
What is a 15 45mm Lens Good for?
15 – 45mm is the focal range of a high-quality zoom lens that comes with a 7 blade circular aperture. This lens is specially designed for wide range creative shooting, ranging from beautiful portraits, blurry backgrounds to dramatic landscapes and motion pictures.
The 15 – 45mm lens is not only stylish and lightweight, but also collapsible, making it travel-friendly. Its exterior matches all Canon EOS M series digital cameras. With its optical image stabilizer, sharp images can be pinned, so camera shake is not an issue. Spontaneous moments can be captured with the super fast autofocus technology.
Does Canon M100 Have Image Stabilization?
The Canon EOS M100 is equipped with a lens-based image stabilization technology, just every other Canon camera that comes with interchangeable lenses. This technology is specifically designed to enhance video quality and not photos. The image stabilization technology is electronically controlled by a floating lens and goes in the opposite direction of any shake recorded by the camera.
The Image stabilization technology of the M100 makes it deliver smooth performance with long focal length lenses. The major drawback of image stabilization is that it increases the cost of a camera.
How Do I Set Up My Canon M100?
To set up the Canon EOS M100, do the following:
i. Unpack the M100 and charge the battery.
ii. Download, install and launch an app called the Canon Solution Disk to a computer.
iii. Set the time, date and time zone using the Rear Control dial pad.
iv. Next, insert an SD card and format it using tools from the Menu option.
v. Unlock and extend the lens of the camera if it retracts to an unreasonable focal length.
vi. Set the mode of the M100 to M, Av or Tv, using the middle switch setting.
vii. Scroll through all the tabs and configure the M100 for first-time use.
How Do You Turn the Flash on a Canon EOS M100?
To turn on the flash on the Canon EOS M100 camera, do the following:
i. Turn on the camera by pressing the power button.
ii. Raise the flash by moving the Flash pop up switch.
iii. Next, press the > button.
iv. Press the < > buttons to put on the flash and then press Set.
v. Set the Flash to Auto for it not to function when it is surrounded by light. On the contrast, the Flash will automatically come on if the surrounding is dark.
How Do You Blur the Background on a Canon M100
To blur the background on the Canon EOS M100, power on the camera and press the < > button and then select Continuous Shooting. Finally, press Set.
The Canon M100 will continue to shoot as long as the shutter button is held down. Also, ensure that the autofocus is matching the subject, whether or not they are moving. For moving subjects, the AI Servo AF should be focused on continuously while shooting. For stationary subjects, the One-Shot should be set to ensure that the camera will be focused just once while shooting continuously.