Canon 77D and T7i: Any Differences Inside?
The high degree of similarity between Canon’s two new cameras, the Rebel T7i and 77D, is obscured by their names; the previous generations of these two cameras were called the Rebels T6i and T6s. It seems that Canon has deliberately attempted to make these cameras appear more different than they really are: in their original press release, Canon only mentioned that the 77D features anti-flicker technology, and the term “anti-flicker” is completely absent from the T7i feature-list page on Canon USA’s current website. However, both cameras share the exact same metering sensor and anti-flicker technology (as can easily be seen by downloading the T7i PDF manual, p.179).
So what are the real differences between these cameras? Let’s take a closer look.
The Major Specs
Before we get into the details, take a look at the general specs for these two cameras. Differences are highlighted in green.
|Canon T7i||Canon 77D|
|Body + 18-135mm Lens|
|Rear LCD||1,040,000 pixel|
|Processor||Digic 7||Digic 7|
|Max. Frame Rate||6 fps||6 fps|
|Max. RAW Burst||21 or|
27 (w/ UHS-I)
27 (w/ UHS-I)
|Max. JPG Burst|
Unlimited (w/ UHS-I)
Unlimited (w/ UHS-I)
(All Cross Type)
|Meter Sensor||7560-pixel RGB+IR||7560-pixel RGB+IR|
|AF Sensitivity||-3 - 18 EV||-3 - 18 EV|
|Autofocus For Video||Yes, Dual Pixel CMOS AF||Yes, Dual Pixel CMOS AF|
|Touch Screen AF||YES||YES|
|Electronic Image Stabilization|
(For Video Only)
|Video Resolutions||1080p @ 24, 30, 60 fps|
720p @ 30, 50, 60 fps
|1080p @ 24, 30, 60 fps|
720p @ 30, 50, 60 fps
|Card Slots||1 SD (SDXC)|
|1 SD (SDXC)|
|Interval Timer (Photos, Video)||NO, YES||YES, YES|
(User Interface for Beginners)
|YES||YES (Off by default)|
|Size||131.0 × 99.9 × 76.2mm||131.0 × 99.9 × 76.2mm|
As you can see, the cameras are practically identical, internally. The Canon 77D simply does not have any major features that the T7i lacks, though the built-in interval timer on the 77D will certainly come in handy for those who shoot time-lapse work. The cameras are otherwise identical. They use the same processor and sensor, so with the same settings, there will be no difference in image quality between the T7i and 77D. But that doesn’t mean that the table above tells the whole story.
So where are the differences between the two cameras? They’re all in the body and control layout. The Canon 77D has three main body features that the T7i lacks:
- top LCD panel
- rear quick-control thumb dial
- eye-proximity sensor (turns off rear LCD when you hold camera near your face)
- dedicated thumb-button for focus (for action photographers)
The top LCD gives users quick access to their main exposure settings (shutter speed, aperture, ISO), battery level, and image count. This can be very useful for photographers who don’t use a full-automatic shooting mode, but since the information can also be accessed via the quick-info button on the rear LCD, it is somewhat less important than it once was. For photographers who grew up using autofocus film SLRs and cultivated a habit of using the top LCD it remains an important feature.
The rear quick-control dial is used to quickly control exposure compensation (how bright or dark your image is), perhaps the most important feature in separating beginners from advanced photographers. While both cameras do provide exposure compensation, only the Canon 77D has quick access to it by default (without pressing buttons or entering menus). When would you use this? In strong back-lighting situations, camera auto-exposures will frequently under-expose the subject, creating a silhouette or at least deep shadows on the subject (eg, a person standing in front of a sunset, against a bright sky, etc). The opposite may also occur, and your subject may be blown out when he or she is in bright light but the background is dark. This dial lets you quickly correct the camera’s mistakes, if you know how to use it. The images below were shot with a different camera, but all required exposure compensation to some degree.
The proximity sensor may be handy for photographers who frequently use live-view, or frequently switch between shooting video and stills, and want to save a little bit of their battery’s juice.
Finally, the 77D has a dedicated back-focusing button for those photographers who want to use their thumb to start AF operation and only use the shutter button to take photos. This is popular with sports photographers, and is getting more popular with portrait photographers as well.
Conclusion: Which Camera is Right for You?
If you’re looking to buy a new Canon T7i or Canon 77D and can’t decide which way to go, here’s how I’d look at it: if you’re interested in a camera that can take sharp, vibrant, high-quality photos and video, go with the T7i. If you’re interested in photography and learning to be a better photographer (and those high-quality images), then get the 77D. Both cameras will give you the same performance and the same image quality. The only difference is in how much easy control you’ll get over your camera’s advanced features.
And more generally, my advice is always this: buy the least expensive camera that will meet your needs, and buy the best lenses that you can afford. High quality lenses will make a larger difference in your photography, and they retain their value much better than camera bodies.
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