Canon G16 vs T3i

The Canon PowerShot G16 and the Canon EOS Rebel T3i (labelled Canon 600D in some countries) are two digital cameras that were officially introduced, respectively, in August 2013 and February 2011. The G16 is a fixed lens compact, while the T3i is a DSLR. The cameras are based on a 1/1.7-inch (G16) and an APS-C (T3i) sensor. The G16 has a resolution of 12 megapixels, whereas the T3i provides 17.9 MP.

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

Headline Specifications

Canon G16		Canon T3i
Fixed lens compact camera		Digital single lens reflex
28-140mm f/1.8-2.8		Canon EF mount lenses
12 MP – 1/1.7" sensor		17.9 MP – APS-C sensor
1080/60p Video		1080/30p Video
ISO 80-12,800		ISO 100-6,400 (100 - 12,800)
Optical viewfinder		Optical viewfinder
3.0" LCD – 922k dots		3.0" LCD – 1040k dots
Fixed screen (not touch-sensitive)		Swivel screen (not touch-sensitive)
2.2 shutter flaps per second		3.7 shutter flaps per second
360 shots per battery charge		440 shots per battery charge
109 x 76 x 40 mm, 356 g		133 x 100 x 80 mm, 570 g

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Going beyond this snapshot of core features and characteristics, what are the differences between the Canon PowerShot G16 and the Canon EOS Rebel T3i? 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

An illustration of the physical size and weight of the Canon G16 and the Canon T3i is provided in the side-by-side display below. 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 dimensions are rounded to the nearest millimeter.

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Canon T3i is considerably larger (61 percent) than the Canon G16. In this context, it is worth noting that neither the G16 nor the T3i are weather-sealed.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the G16 has a lens built in, whereas the T3i is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup. You can compare the optics available for the T3i and their specifications in the Canon EF Lens Catalog.

Concerning battery life, the G16 gets 360 shots out of its Canon NB-10L battery, while the T3i can take 440 images on a single charge of its Canon LP-E8 power pack.

The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. 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 G16	109 mm	76 mm	40 mm	356 g	360	n	Aug 2013	US$ 549	ebay.com
2.		Canon T3i	133 mm	100 mm	80 mm	570 g	440	n	Feb 2011	US$ 599	ebay.com
3.		Canon 100D	117 mm	91 mm	69 mm	407 g	380	n	Mar 2013	US$ 549	ebay.com
4.		Canon G1 X	117 mm	81 mm	65 mm	534 g	250	n	Jan 2012	US$ 799	ebay.com
5.		Canon G1 X Mark II	116 mm	74 mm	66 mm	553 g	240	n	Feb 2014	US$ 799	ebay.com
6.		Canon G12	112 mm	76 mm	48 mm	401 g	370	n	Sep 2010	US$ 499	ebay.com
7.		Canon G15	107 mm	76 mm	40 mm	352 g	350	n	Sep 2012	US$ 499	ebay.com
8.		Canon M	109 mm	66 mm	32 mm	298 g	230	n	Jul 2012	US$ 599	ebay.com
9.		Canon T2i	129 mm	98 mm	62 mm	530 g	440	n	Feb 2010	US$ 699	ebay.com
10.		Canon T4i	133 mm	100 mm	79 mm	575 g	440	n	Jun 2012	US$ 849	ebay.com
11.		Canon T5i	133 mm	100 mm	79 mm	580 g	440	n	Mar 2013	US$ 649	ebay.com
12.		Canon T6	129 mm	101 mm	78 mm	485 g	500	n	Mar 2016	US$ 449	ebay.com
13.		Canon T6s	132 mm	101 mm	78 mm	565 g	440	n	Feb 2015	US$ 649	ebay.com
14.		Fujifilm X20	117 mm	70 mm	57 mm	353 g	270	n	Jan 2013	US$ 599	ebay.com
15.		Fujifilm X30	119 mm	72 mm	60 mm	423 g	470	n	Aug 2014	US$ 599	ebay.com
16.		Nikon P7800	119 mm	78 mm	50 mm	399 g	350	n	Sep 2013	US$ 549	ebay.com
17.		Panasonic LX7	111 mm	68 mm	46 mm	298 g	330	n	Jul 2012	US$ 499	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 obviously take relative prices into account. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The G16 was launched at a lower price than the T3i, despite having a lens built in. Usually, retail prices stay at first close to the launch price, but after several months, discounts become available. 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. All other things equal, a large sensor will have larger individual pixel-units that offer better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixels in a sensor of the same technological generation. Moreover, a large sensor camera will give the photographer more control over depth-of-field in the image and, thus, the ability to better isolate a subject from the background. On the downside, larger sensors tend to be associated with larger, more expensive camera bodies and lenses.

Of the two cameras under consideration, the Canon G16 features a 1/1.7-inch sensor and the Canon T3i an APS-C sensor. The sensor area in the T3i is 690 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 4.65 and 1.6. The sensor in the G16 has a native 4:3 aspect ratio, while the one in the T3i offers a 3:2 aspect.

In terms of chip-set technology, the G16 uses a more advanced image processing engine (DIGIC 6) than the T3i (DIGIC 4), with benefits for noise reduction, color accuracy, and processing speed.

With 17.9MP, the T3i offers a higher resolution than the G16 (12MP), but the T3i nevertheless has larger individual pixels (pixel pitch of 4.31μm versus 1.87μm for the G16) due to its larger sensor. However, the G16 is a much more recent model (by 2 years and 6 months) than the T3i, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units.

The resolution advantage of the Canon T3i implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the T3i for good quality output (200 dots per inch) amounts to 25.9 x 17.3 inches or 65.8 x 43.9 cm, for very good quality (250 dpi) 20.7 x 13.8 inches or 52.7 x 35.1 cm, and for excellent quality (300 dpi) 17.3 x 11.5 inches or 43.9 x 29.3 cm. The corresponding values for the Canon G16 are 20 x 15 inches or 50.8 x 38.1 cm for good quality, 16 x 12 inches or 40.6 x 30.5 cm for very good quality, and 13.3 x 10 inches or 33.9 x 25.4 cm for excellent quality prints.

The Canon PowerShot G16 has a native sensitivity range from ISO 80 to ISO 12800. The corresponding ISO settings for the Canon EOS Rebel T3i are ISO 100 to ISO 6400, with the possibility to increase the ISO range to 100-12800.

In terms of underlying technology, the G16 is build around a BSI-CMOS sensor, while the T3i uses a CMOS imager. 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 determines an overall sensor rating, as well as sub-scores for low-light sensitivity ("DXO Sports"), dynamic range ("DXO Landscape"), and color depth ("DXO Portrait"). Of the two cameras under consideration, the T3i offers substantially better image quality than the G16 (overall score 11 points higher). The advantage is based on 1.1 bits higher color depth, 0.2 EV of lower dynamic range, and 1.8 stops in additional low light sensitivity. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar 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 G16	1/1.7	12.0	4000	3000	1080/60p	21.0	11.7	230	54
2.		Canon T3i	APS-C	17.9	5184	3456	1080/30p	22.1	11.5	793	65
3.		Canon 100D	APS-C	17.9	5184	3456	1080/30p	21.8	11.3	843	63
4.		Canon G1 X	1.5-inch	14.2	4352	3264	1080/24p	21.7	10.8	644	60
5.		Canon G1 X Mark II	1.5-inch	13.0	4160	3120	1080/30p	21.5	10.8	581	58
6.		Canon G12	1/1.7	10.0	3648	2736	720/24p	20.4	11.2	161	47
7.		Canon G15	1/1.7	12.0	4000	3000	1080/24p	19.9	11.5	165	46
8.		Canon M	APS-C	17.9	5184	3456	1080/30p	22.1	11.2	827	65
9.		Canon T2i	APS-C	17.9	5184	3456	1080/30p	22.1	11.5	784	66
10.		Canon T4i	APS-C	17.9	5184	3456	1080/30p	21.7	11.2	722	62
11.		Canon T5i	APS-C	17.9	5184	3456	1080/30p	21.7	11.2	681	61
12.		Canon T6	APS-C	17.9	5184	3456	1080/30p	22.0	11.7	781	66
13.		Canon T6s	APS-C	24.0	6000	4000	1080/30p	22.6	12.0	915	70
14.		Fujifilm X20	2/3	12.0	4000	3000	1080/60p	20.1	10.9	-462	46
15.		Fujifilm X30	2/3	12.0	4000	3000	1080/60p	20.4	11.2	-312	49
16.		Nikon P7800	1/1.7	12.0	4000	3000	1080/30p	21.2	11.7	200	54
17.		Panasonic LX7	1/1.7	10.0	3648	2736	1080/60p	20.7	11.7	147	50
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. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the G16 provides a higher frame rate than the T3i. It can shoot video footage at 1080/60p, while the T3i is limited to 1080/30p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. The G16 and the T3i 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 adjacent table lists some of the other core features of the Canon G16 and Canon T3i along with similar information for a selection of comparators.

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 G16	optical	n	3.0 / 922	fixed	n	1/4000s	2.2/s	Y	Y
2.		Canon T3i	optical	n	3.0 / 1040	swivel	n	1/4000s	3.7/s	Y	n
3.		Canon 100D	optical	n	3.0 / 1040	fixed	Y	1/4000s	4.9/s	Y	n
4.		Canon G1 X	optical	n	3.0 / 922	swivel	n	1/4000s	1.9/s	Y	Y
5.		Canon G1 X Mark II	optional	n	3.0 / 1040	tilting	Y	1/4000s	5.2/s	Y	Y
6.		Canon G12	optical	n	2.8 / 461	swivel	n	1/4000s	1.1/s	Y	Y
7.		Canon G15	optical	n	3.0 / 922	fixed	n	1/4000s	2.1/s	Y	Y
8.		Canon M	none	n	3.0 / 1040	fixed	Y	1/4000s	4.3/s	n	n
9.		Canon T2i	optical	n	3.0 / 1040	fixed	n	1/4000s	3.7/s	Y	n
10.		Canon T4i	optical	n	3.0 / 1040	swivel	Y	1/4000s	5.0/s	Y	n
11.		Canon T5i	optical	n	3.0 / 1040	swivel	Y	1/4000s	5.0/s	Y	n
12.		Canon T6	optical	n	3.0 / 920	fixed	n	1/4000s	3.0/s	Y	n
13.		Canon T6s	optical	Y	3.0 / 1040	swivel	Y	1/4000s	5.0/s	Y	n
14.		Fujifilm X20	optical	n	2.8 / 460	fixed	n	1/4000s	12.0/s	Y	Y
15.		Fujifilm X30	2360	n	3.0 / 920	tilting	n	1/4000s	12.0/s	Y	Y
16.		Nikon P7800	921	n	3.0 / 921	swivel	n	1/4000s	8.0/s	Y	Y
17.		Panasonic LX7	optional	n	3.0 / 920	fixed	n	1/4000s	11.0/s	Y	Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

The Canon G16 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 G16 and the T3i write their files to SDXC cards. The G16 supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the T3i cannot take advantage of Ultra High Speed SD cards.

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 PowerShot G16 and Canon EOS Rebel T3i 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 G16	Y	stereo / mono	-	-	mini	2.0	Y	-	-
2.		Canon T3i	Y	mono / mono	Y	-	mini	2.0	-	-	-
3.		Canon 100D	Y	mono / mono	Y	-	mini	2.0	-	-	-
4.		Canon G1 X	Y	stereo / mono	-	-	mini	2.0	-	-	-
5.		Canon G1 X Mark II	Y	stereo / mono	-	-	mini	2.0	Y	Y	-
6.		Canon G12	Y	stereo / mono	-	-	mini	2.0	-	-	-
7.		Canon G15	Y	stereo / mono	-	-	mini	2.0	-	-	-
8.		Canon M	Y	stereo / mono	Y	-	mini	2.0	-	-	-
9.		Canon T2i	Y	stereo / -	Y	-	mini	2.0	-	-	-
10.		Canon T4i	Y	stereo / mono	Y	-	mini	2.0	-	-	-
11.		Canon T5i	Y	stereo / mono	Y	-	mini	2.0	-	-	-
12.		Canon T6	Y	mono / mono	-	-	mini	2.0	Y	Y	-
13.		Canon T6s	Y	stereo / mono	Y	-	mini	2.0	Y	Y	-
14.		Fujifilm X20	Y	stereo / mono	-	-	micro	2.0	-	-	-
15.		Fujifilm X30	Y	stereo / mono	-	-	micro	2.0	Y	-	-
16.		Nikon P7800	Y	stereo / mono	Y	-	mini	2.0	-	-	-
17.		Panasonic LX7	Y	stereo / mono	-	-	mini	2.0	-	-	-

It is notable that the G16 offers wifi support, while the T3i does not. Wifi can be a very convenient means to transfer image data to an off-camera location.

Both the G16 and the T3i have been discontinued, but can regularly be found used on ebay. The T3i was replaced by the Canon T4i, while the G16 does not have a direct successor. Further information on the features and operation of the G16 and T3i can be found, respectively, in the Canon G16 Manual (free pdf) or the online Canon T3i Manual.

Review summary

So what is the bottom line? Is the Canon G16 better than the Canon T3i or vice versa? Below is a summary of the relative strengths of each of the two contestants.

Arguments in favor of the Canon PowerShot G16:

• Better jpgs: Has a more modern image processing engine (DIGIC 6 vs DIGIC 4).
• Better video: Provides higher movie framerates (1080/60p versus 1080/30p).
• Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
• Ready to shoot: Comes with a built-in lens, while the T3i requires a separate lens.
• More compact: Is smaller (109x76mm vs 133x100mm) and thus needs less room in the bag.
• Less heavy: Is lighter even though it comes with a built-in lens (unlike the T3i).
• Sharper images: Has hand-shake reducing image stabilization built-in.
• Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
• Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
• More affordable: Was introduced at a lower price, despite coming with a built-in lens.
• More modern: Reflects 2 years and 6 months of technical progress since the T3i launch.

Advantages of the Canon EOS Rebel T3i:

• More detail: Has more megapixels (17.9 vs 12MP), which boosts linear resolution by 25%.
• Better image quality: Scores substantially higher (11 points) in the DXO overall evaluation.
• Richer colors: Generates noticeably more natural colors (1.1 bits more color depth).
• Better low-light sensitivity: Can shoot in dim conditions (1.8 stops ISO advantage).
• Better sound: Can connect to an external microphone for higher quality sound recording.
• More detailed LCD: Has a higher resolution rear screen (1040k vs 922k dots).
• More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
• More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
• Faster burst: Shoots at higher frequency (3.7 vs 2.2 flaps/sec) to capture the decisive moment.
• More flexible: Makes it possible to change lenses and thus to use specialty optics.
• Longer lasting: Gets more shots (440 versus 360) out of a single battery charge.
• More heavily discounted: Has been around for much longer (launched in February 2011).

If the number of relative strengths (bullet points above) is taken as a guide, the T3i comes out slightly ahead of the G16 (12 : 11 points). However, the relative importance of the various individual camera aspects will vary according to personal preferences and needs, so that you might like to apply corresponding weights to the particular features before making a decision on a new camera. A professional wildlife photographer will view the differences between cameras in a way that diverges from the perspective of a family photog, and a person interested in architecture has distinct needs from a sports 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 G16 and the Canon T3i place the cameras among the top in their class? Find out in the latest Best Travel-Zoom Camera and Best DSLR Camera listings whether the two cameras rank among the cream of the crop.

In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the G16 or the T3i. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.

Expert reviews

This is why hands-on reviews by experts are important. 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 G16	4/5	+	..	..	4.5/5	4.5/5	Aug 2013	US$ 549	ebay.com
2.		Canon T3i	3/5	o	..	77/100	4.5/5	4.5/5	Feb 2011	US$ 599	ebay.com
3.		Canon 100D	4/5	+	..	78/100	4/5	4/5	Mar 2013	US$ 549	ebay.com
4.		Canon G1 X	5/5	+	..	76/100	4/5	4.5/5	Jan 2012	US$ 799	ebay.com
5.		Canon G1 X Mark II	3/5	+	..	77/100	4/5	4.5/5	Feb 2014	US$ 799	ebay.com
6.		Canon G12	4/5	+	..	73/100	4.5/5	4.5/5	Sep 2010	US$ 499	ebay.com
7.		Canon G15	4/5	+	..	76/100	4.5/5	4.5/5	Sep 2012	US$ 499	ebay.com
8.		Canon M	3/5	+	..	..	4/5	4/5	Jul 2012	US$ 599	ebay.com
9.		Canon T2i	..	+ +	..	77/100	4/5	4.5/5	Feb 2010	US$ 699	ebay.com
10.		Canon T4i	4/5	+ +	..	77/100	4.5/5	4.5/5	Jun 2012	US$ 849	ebay.com
11.		Canon T5i	..	..	..	76/100	4.5/5	4.5/5	Mar 2013	US$ 649	ebay.com
12.		Canon T6	4/5	o	4/5	73/100	4/5	4/5	Mar 2016	US$ 449	ebay.com
13.		Canon T6s	5/5	+	..	77/100	4.5/5	4.5/5	Feb 2015	US$ 649	ebay.com
14.		Fujifilm X20	4/5	+ +	..	77/100	4.5/5	5/5	Jan 2013	US$ 599	ebay.com
15.		Fujifilm X30	4/5	..	..	76/100	4.5/5	4.5/5	Aug 2014	US$ 599	ebay.com
16.		Nikon P7800	3/5	..	..	..	4/5	4.5/5	Sep 2013	US$ 549	ebay.com
17.		Panasonic LX7	3/5	+ +	..	75/100	4/5	4.5/5	Jul 2012	US$ 499	ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The above review scores should be interpreted with care, though. The assessments were made in relation to similar cameras of the same technological generation. 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, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

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Other camera comparisons

Did this review help to inform your camera decision process? If you would like to see a different side-by-side camera review, just make a corresponding selection in the search boxes 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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