Canon 77D vs T7i

The Canon EOS 77D and the Canon EOS Rebel T7i (labelled Canon 800D in some countries) are two digital cameras that were officially introduced in February 2017. Both are DSLR (Digital Single Lens Reflex) cameras that are equipped with an APS-C sensor. Both cameras offer a resolution of 24 megapixels.

Below is an overview of the main specs of the two cameras as a starting point for the comparison.

Headline Specifications

Canon 77D		Canon T7i
Digital single lens reflex		Digital single lens reflex
Canon EF mount lenses		Canon EF mount lenses
24 MP – APS-C sensor		24 MP – APS-C sensor
1080/60p Video		1080/60p Video
ISO 100-25,600 (100 - 51,200)		ISO 100-25,600 (100 - 51,200)
Optical viewfinder		Optical viewfinder
3.0" LCD – 1040k dots		3.0" LCD – 1040k dots
Swivel touchscreen		Swivel touchscreen
6 shutter flaps per second		6 shutter flaps per second
600 shots per battery charge		600 shots per battery charge
131 x 100 x 76 mm, 540 g		131 x 100 x 76 mm, 532 g

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Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS 77D and the Canon EOS Rebel T7i? Which one should you buy? Read on to find out how these two cameras compare with respect to their body size, their imaging sensors, their shooting features, their input-output connections, and their reception by expert reviewers.

Body comparison

The side-by-side display below illustrates the physical size and weight of the Canon 77D and the Canon T7i. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All width, height and depth measures are rounded to the nearest millimeter.

In this particular case, the Canon 77D and the Canon T7i have exactly the same width and height, and, thus, have identically-sized bodies. However, the T7i is slightly lighter (1 percent) than the 77D. In this context, it is worth noting that neither the 77D nor the T7i are weather-sealed.

The above size and weight comparisons are to some extent incomplete since they do not consider the interchangeable lenses that both of these cameras require. In this particular case, both cameras feature the same lens mount, so that they can use the same lenses. You can compare the optics available in the Canon EF Lens Catalog.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. In case you want to display and compare another camera duo, you can use the CAM-parator app to select your camera combination among a large number of options.

Body Specifications

		Camera Model	Camera Width	Camera Height	Camera Depth	Camera Weight	Battery Life	Weather Sealing	Camera Launch	Launch Price	Street Price
1.		Canon 77D	131 mm	100 mm	76 mm	540 g	600	n	Feb 2017	EUR 899	ebay.com
2.		Canon T7i	131 mm	100 mm	76 mm	532 g	600	n	Feb 2017	EUR 849	ebay.com
3.		Canon 80D	139 mm	105 mm	79 mm	730 g	960	Y	Feb 2016	EUR 1 285	ebay.com
4.		Canon 200D	122 mm	93 mm	70 mm	453 g	650	n	Jun 2017	EUR 599	ebay.com
5.		Canon 750D	132 mm	101 mm	78 mm	555 g	440	n	Feb 2015	EUR 699	ebay.com
6.		Canon 760D	132 mm	101 mm	78 mm	565 g	440	n	Feb 2015	EUR 749	ebay.com
7.		Canon 800D	131 mm	100 mm	76 mm	532 g	600	n	Feb 2017	EUR 849	ebay.com
8.		Canon 850D	131 mm	103 mm	76 mm	515 g	800	n	Feb 2020	EUR 899	ebay.com
9.		Canon 1300D	129 mm	101 mm	78 mm	485 g	500	n	Mar 2016	EUR 449	ebay.com
10.		Canon 2000D	129 mm	101 mm	78 mm	475 g	500	n	Feb 2018	EUR 499	amazon.com
11.		Canon M5	116 mm	89 mm	61 mm	427 g	295	n	Sep 2016	EUR 1 129	ebay.com
12.		Canon M6	112 mm	68 mm	45 mm	390 g	295	n	Feb 2017	EUR 799	ebay.com
13.		Canon T5i	133 mm	100 mm	79 mm	580 g	440	n	Mar 2013	EUR 599	ebay.com
14.		Canon T6i	132 mm	101 mm	78 mm	555 g	440	n	Feb 2015	EUR 699	ebay.com
15.		Canon T7	129 mm	101 mm	78 mm	475 g	500	n	Feb 2018	EUR 499	amazon.com
16.		Canon T8i	131 mm	103 mm	76 mm	515 g	800	n	Feb 2020	EUR 899	ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
Convert to Imperial

Any camera decision will naturally be influenced heavily by the price. The manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The T7i was launched at a somewhat lower price (by 17 percent) than the 77D, which makes it more attractive for photographers on a tight budget. Normally, street prices remain initially close to the MSRP, but after a couple of months, the first discounts appear. Later in the product cycle and, in particular, when the replacement model is about to appear, further discounting and stock clearance sales often push the camera price considerably down. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.

Sensor comparison

The size of the imaging sensor is a crucial determinant of image quality. A large sensor will tend to have larger individual pixels that provide better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixel-units in a sensor of the same technological generation. Furthermore, a large sensor camera will give the photographer more possibilities to use shallow depth-of-field in order to isolate a subject from the background. On the downside, larger sensors are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.

Both cameras under consideration feature an APS-C sensor and have a format factor (sometimes also referred to as "crop factor") of 1.6. Within the spectrum of camera sensors, this places the review cameras among the medium-sized sensor cameras that aim to strike a balance between image quality and portability. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

The two cameras under review do not only share the same sensor size, but also offer an identical resolution of 24 megapixels. This similarity in sensor specs implies that both the 77D and the T7i have the same pixel density, as well as the same pixel size. Moreover, the two cameras were released in close succession, so that their sensors are from the same technological generation.

The Canon EOS 77D has a native sensitivity range from ISO 100 to ISO 25600, which can be extended to ISO 100-51200. The Canon EOS Rebel T7i offers exactly the same ISO settings.

Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.

For many cameras, data on sensor performance has been reported by DXO Mark. This service is based on lab testing and assigns an overall score to each camera sensor, as well as ratings for dynamic range ("DXO Landscape"), color depth ("DXO Portrait"), and low-light sensitivity ("DXO Sports"). The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.

Sensor Characteristics

		Camera Model	Sensor Class	Resolution (MP)	Horiz. Pixels	Vert. Pixels	Video Format	DXO Portrait	DXO Landscape	DXO Sports	DXO Overall
1.		Canon 77D	APS-C	24.0	6000	4000	1080/60p	23.6	13.3	971	78
2.		Canon T7i	APS-C	24.0	6000	4000	1080/60p	23.7	13.1	1586	80
3.		Canon 80D	APS-C	24.0	6000	4000	1080/60p	23.6	13.2	1135	79
4.		Canon 200D	APS-C	24.0	6000	4000	1080/60p	23.6	13.4	1041	79
5.		Canon 750D	APS-C	24.0	6000	4000	1080/30p	22.7	12.0	919	71
6.		Canon 760D	APS-C	24.0	6000	4000	1080/30p	22.6	12.0	915	70
7.		Canon 800D	APS-C	24.0	6000	4000	1080/60p	23.7	13.1	1586	80
8.		Canon 850D	APS-C	24.0	6000	4000	4K/24p	24.0	13.5	1873	83
9.		Canon 1300D	APS-C	17.9	5184	3456	1080/30p	22.0	11.7	781	66
10.		Canon 2000D	APS-C	24.0	6000	4000	1080/30p	22.6	11.9	1009	71
11.		Canon M5	APS-C	24.0	6000	4000	1080/60p	23.4	12.4	1262	77
12.		Canon M6	APS-C	24.0	6000	4000	1080/60p	23.4	12.6	1317	78
13.		Canon T5i	APS-C	17.9	5184	3456	1080/30p	21.7	11.2	681	61
14.		Canon T6i	APS-C	24.0	6000	4000	1080/30p	22.7	12.0	919	71
15.		Canon T7	APS-C	24.0	6000	4000	1080/30p	23.8	13.3	1684	81
16.		Canon T8i	APS-C	24.0	6000	4000	4K/24p	24.0	13.5	1873	83
Note: DXO values in italics represent estimates based on sensor size and age.

Many modern cameras are not only capable of taking still images, but can also record movies. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, and both provide the same movie specifications (1080/60p).

Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. The 77D and the T7i are similar in the sense that both have an optical viewfinder. The latter is useful for getting a clear image for framing even in brightly lit environments. The viewfinders of both cameras offer the same field of view (95%), as well as the same magnification (0.51x). The table below summarizes some of the other core capabilities of the Canon 77D and Canon T7i in connection with corresponding information for a sample of similar cameras.

Core Features

		Camera Model	Viewfinder (Type or 000 dots)	Control Panel (yes/no)	LCD Specifications (inch/000 dots)	LCD Attach- ment	Touch Screen (yes/no)	Max Shutter Speed *	Max Shutter Flaps *	Built-in Flash (yes/no)	Built-in Image Stab
1.		Canon 77D	optical	Y	3.0 / 1040	swivel	Y	1/4000s	6.0/s	Y	n
2.		Canon T7i	optical	n	3.0 / 1040	swivel	Y	1/4000s	6.0/s	Y	n
3.		Canon 80D	optical	Y	3.0 / 1040	swivel	Y	1/8000s	7.0/s	Y	n
4.		Canon 200D	optical	n	3.0 / 1040	swivel	Y	1/4000s	5.0/s	Y	n
5.		Canon 750D	optical	n	3.0 / 1040	swivel	Y	1/4000s	5.0/s	Y	n
6.		Canon 760D	optical	Y	3.0 / 1040	swivel	Y	1/4000s	5.0/s	Y	n
7.		Canon 800D	optical	n	3.0 / 1040	swivel	Y	1/4000s	6.0/s	Y	n
8.		Canon 850D	optical	n	3.0 / 1040	swivel	Y	1/4000s	7.5/s	Y	n
9.		Canon 1300D	optical	n	3.0 / 920	fixed	n	1/4000s	3.0/s	Y	n
10.		Canon 2000D	optical	n	3.0 / 920	fixed	n	1/4000s	3.0/s	Y	n
11.		Canon M5	2360	n	3.2 / 1620	tilting	Y	1/4000s	9.0/s	Y	n
12.		Canon M6	optional	n	3.0 / 1040	tilting	Y	1/4000s	9.0/s	Y	n
13.		Canon T5i	optical	n	3.0 / 1040	swivel	Y	1/4000s	5.0/s	Y	n
14.		Canon T6i	optical	n	3.0 / 1040	swivel	Y	1/4000s	5.0/s	Y	n
15.		Canon T7	optical	n	3.0 / 920	fixed	n	1/4000s	3.0/s	Y	n
16.		Canon T8i	optical	n	3.0 / 1040	swivel	Y	1/4000s	7.5/s	Y	n
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One feature that is present on the 77D, but is missing on the T7i is a top-level LCD. While being, of course, smaller than the rear screen, the control panel conveys some of the essential shooting information and can be convenient for quick and easy settings verification.

The Canon 77D has an intervalometer built-in. This enables the photographer to capture time lapse sequences, such as flower blooming, a sunset or moon rise, without purchasing an external camera trigger and related software.

Concerning the storage of imaging data, both the 77D and the T7i write their files to SDXC cards. Both cameras can use UHS-I cards, which provide for Ultra High Speed data transfer of up to 104 MB/s.

Connectivity comparison

For some imaging applications, the extent to which a camera can communicate with its environment can be an important aspect in the camera decision process. The table below provides an overview of the connectivity of the Canon EOS 77D and Canon EOS Rebel T7i and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

Input-Output Connections

		Camera Model	Hotshoe Port	Internal Mic / Speaker	Microphone Port	Headphone Port	HDMI Port	USB Port	WiFi Support	NFC Support	Bluetooth Support
1.		Canon 77D	Y	stereo / mono	Y	-	mini	2.0	Y	Y	Y
2.		Canon T7i	Y	stereo / mono	Y	-	mini	2.0	Y	Y	Y
3.		Canon 80D	Y	stereo / mono	Y	Y	mini	2.0	Y	Y	-
4.		Canon 200D	Y	stereo / mono	Y	-	mini	2.0	Y	Y	Y
5.		Canon 750D	Y	stereo / mono	Y	-	mini	2.0	Y	Y	-
6.		Canon 760D	Y	stereo / mono	Y	-	mini	2.0	Y	Y	-
7.		Canon 800D	Y	stereo / mono	Y	-	mini	2.0	Y	Y	Y
8.		Canon 850D	Y	stereo / mono	Y	-	mini	2.0	Y	-	Y
9.		Canon 1300D	Y	mono / mono	-	-	mini	2.0	Y	Y	-
10.		Canon 2000D	Y	mono / mono	-	-	mini	2.0	Y	Y	-
11.		Canon M5	Y	stereo / mono	Y	-	mini	2.0	Y	Y	Y
12.		Canon M6	Y	stereo / mono	Y	-	mini	2.0	Y	Y	Y
13.		Canon T5i	Y	stereo / mono	Y	-	mini	2.0	-	-	-
14.		Canon T6i	Y	stereo / mono	Y	-	mini	2.0	Y	Y	-
15.		Canon T7	Y	mono / mono	-	-	mini	2.0	Y	Y	-
16.		Canon T8i	Y	stereo / mono	Y	-	mini	2.0	Y	-	Y

Both the 77D and the T7i have been discontinued, but can regularly be found used on ebay. The T7i was replaced by the Canon T8i, while the 77D does not have a direct successor. Further information on the features and operation of the 77D and T7i can be found, respectively, in the Canon 77D Manual (free pdf) or the online Canon T7i Manual.

Review summary

So what conclusions can be drawn? Which of the two cameras – the Canon 77D or the Canon T7i – has the upper hand? Is one clearly better than the other? Below is a summary of the relative strengths of each of the two contestants.

Advantages of the Canon EOS 77D:

• Easier setting verification: Features an LCD display on top to control shooting parameters.
• Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.

Reasons to prefer the Canon EOS Rebel T7i:

• More affordable: Was released into a lower priced segment (17 percent cheaper at launch).

If the count of relative strengths (bullet points above) is taken as a measure, the 77D comes out slightly ahead of the T7i (2 : 1 points). However, the pertinence of the various camera strengths will differ across photographers, so that you might want to weigh individual camera traits according to their importance for your own imaging needs before making a camera decision. A professional wedding photographer will view the differences between cameras in a way that diverges from the perspective of a travel photog, and a person interested in cityscapes has distinct needs from a macro shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

How about other alternatives? Do the specifications of the Canon 77D and the Canon T7i place the cameras among the top in their class? Find out in the latest Best DSLR Camera listing whether the two cameras rank among the cream of the crop.

In any case, while the specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it says little about, for example, the shooting experience and imaging performance of the 77D and the T7i in practical situations. At times, user reviews, such as those published at amazon, address these issues in a useful manner, but such feedback is on many occasions incomplete, inconsistent, and unreliable.

Expert reviews

This is where reviews by experts come in. The table below provides a synthesis of the camera assessments of some of the best known photo-gear review sites (amateurphotographer [AP], cameralabs [CL], digitalcameraworld [DCW], dpreview [DPR], ephotozine [EPZ], photographyblog [PB]). As can be seen, the professional reviewers agree in many cases on the quality of different cameras, but sometimes their assessments diverge, reinforcing the earlier point that a camera decision is often a very personal choice.

Expert Camera Reviews

		Camera   Model	AP   score	CL   score	DCW   score	DPR   score	EPZ   score	PB   score	Camera Launch	Launch Price	Street Price
1.		Canon 77D	4.5/5	..	4/5	82/100	4.5/5	4/5	Feb 2017	EUR 899	ebay.com
2.		Canon T7i	4.5/5	..	3.5/5	80/100	4.5/5	4/5	Feb 2017	EUR 849	ebay.com
3.		Canon 80D	4/5	+ +	4.5/5	84/100	4.5/5	4.5/5	Feb 2016	EUR 1 285	ebay.com
4.		Canon 200D	4/5	+ +	4/5	78/100	4.5/5	4.5/5	Jun 2017	EUR 599	ebay.com
5.		Canon 750D	5/5	..	..	75/100	4.5/5	4.5/5	Feb 2015	EUR 699	ebay.com
6.		Canon 760D	5/5	+	..	77/100	4.5/5	4.5/5	Feb 2015	EUR 749	ebay.com
7.		Canon 800D	4.5/5	..	3.5/5	80/100	4.5/5	4/5	Feb 2017	EUR 849	ebay.com
8.		Canon 850D	4/5	+	3/5	80/100	4/5	3.5/5	Feb 2020	EUR 899	ebay.com
9.		Canon 1300D	4/5	o	4/5	73/100	4/5	4/5	Mar 2016	EUR 449	ebay.com
10.		Canon 2000D	3/5	o	3.5/5	..	3.5/5	3.5/5	Feb 2018	EUR 499	amazon.com
11.		Canon M5	4/5	+	4/5	82/100	4/5	4/5	Sep 2016	EUR 1 129	ebay.com
12.		Canon M6	..	..	..	80/100	4/5	4/5	Feb 2017	EUR 799	ebay.com
13.		Canon T5i	..	..	..	76/100	4.5/5	4.5/5	Mar 2013	EUR 599	ebay.com
14.		Canon T6i	5/5	..	..	75/100	4.5/5	4.5/5	Feb 2015	EUR 699	ebay.com
15.		Canon T7	..	o	3.5/5	..	3.5/5	3.5/5	Feb 2018	EUR 499	amazon.com
16.		Canon T8i	4.5/5	+	3/5	80/100	4/5	3.5/5	Feb 2020	EUR 899	ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The review scores listed above should be treated with care, though. The ratings are only valid when referring to cameras in the same category and of the same age. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and comparisons of ratings among very different cameras or across long time periods have little meaning. Also, please note that some of the review sites have changed their methodology and reporting over time.

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Other camera comparisons

Did this review help to inform your camera decision process? In case you would like to check on the differences and similarities of other camera models, just use the search menu below. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.

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