Canon T100 vs T3

The Canon EOS Rebel T100 (called Canon 4000D in some regions) and the Canon EOS Rebel T3 (labelled Canon 1100D in some countries) are two digital cameras that were revealed to the public, respectively, in February 2018 and February 2011. Both are DSLR (Digital Single Lens Reflex) cameras that are equipped with an APS-C sensor. The T100 has a resolution of 17.9 megapixels, whereas the T3 provides 12.2 MP.

As their names suggest, both the Canon EOS Rebel T100 and the Canon EOS Rebel T3 belong to Canon's Rebel line of DSLR cameras. This range of APS-C cameras, which started out with the Canon EOS Digital Rebel in 2003, has been a big commercial success and the backbone of Canon's dominance in the digital camera market. The popularity of the Rebel cameras is the result of them inheriting much of the sensor and shooting technology from earlier released professional DSLRs, while being sold at a much more budget-friendly price point. The strong brand reputation of Canon and the comprehensive EOS system of compatible lenses and accessories further contributes to the appeal of the Rebel cams, including the Canon T100 and Canon T3. Below is an overview of the main specs of the two cameras as a starting point for the comparison.

Headline Specifications

Canon T100		Canon T3
Digital single lens reflex		Digital single lens reflex
Canon EF mount lenses		Canon EF mount lenses
17.9 MP – APS-C sensor		12.2 MP – APS-C sensor
1080/30p Video		720/30p Video
ISO 100-6,400 (100 - 12,800)		ISO 100-6,400
Optical viewfinder		Optical viewfinder
2.7" LCD – 230k dots		2.7" LCD – 230k dots
Fixed screen (not touch-sensitive)		Fixed screen (not touch-sensitive)
3 shutter flaps per second		3 shutter flaps per second
500 shots per battery charge		700 shots per battery charge
129 x 102 x 77 mm, 436 g		130 x 100 x 78 mm, 495 g

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Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS Rebel T100 and the Canon EOS Rebel T3? 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 T100 and the Canon T3 is provided in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive views from the front, the top, and the rear side are shown. All width, height and depth measures 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 T3 is somewhat smaller (1 percent) than the Canon T100. However, the T3 is markedly heavier (14 percent) than the T100. In this context, it is worth noting that neither the T100 nor the T3 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 following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. If you want to switch the focus of the display and review another camera pair, you can move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.

Body Specifications

		Camera Model	Camera Width	Camera Height	Camera Depth	Camera Weight	Battery Life	Weather Sealing	Camera Launch	Launch Price (USD)	Street Price
1.		Canon T100	129 mm	102 mm	77 mm	436 g	500	n	Feb 2018	399	amazon.com
2.		Canon T3	130 mm	100 mm	78 mm	495 g	700	n	Feb 2011	449	ebay.com
3.		Canon G1 X	117 mm	81 mm	65 mm	534 g	250	n	Jan 2012	799	ebay.com
4.		Canon SL1	117 mm	91 mm	69 mm	407 g	380	n	Mar 2013	549	ebay.com
5.		Canon SL2	122 mm	93 mm	70 mm	453 g	650	n	Jun 2017	549	ebay.com
6.		Canon T1i	129 mm	98 mm	62 mm	520 g	400	n	Mar 2009	799	ebay.com
7.		Canon T2i	129 mm	98 mm	62 mm	530 g	440	n	Feb 2010	699	ebay.com
8.		Canon T5	130 mm	100 mm	78 mm	480 g	500	n	Feb 2014	449	ebay.com
9.		Canon T5i	133 mm	100 mm	79 mm	580 g	440	n	Mar 2013	649	ebay.com
10.		Canon T6	129 mm	101 mm	78 mm	485 g	500	n	Mar 2016	449	ebay.com
11.		Canon T7	129 mm	101 mm	78 mm	475 g	500	n	Feb 2018	449	amazon.com
12.		Canon XS	126 mm	98 mm	65 mm	502 g	500	n	Jun 2008	449	ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
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Any camera decision will obviously take relative prices into account. The retail prices at the time of the camera’s release place the model in the market relative to other models in the producer’s line-up and the competition. The T100 was launched at a somewhat lower price (by 11 percent) than the T3, which makes it more attractive for photographers on a tight budget. 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 imaging sensor is at the core of digital cameras and its size is one of the main determining factors 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. Further, a large sensor camera will give the photographer additional creative options when using shallow depth-of-field to isolate a subject from its background. On the downside, larger sensors tend to be more expensive and lead to bigger and heavier cameras and lenses.

Both cameras under consideration feature an APS-C sensor, but their sensors differ slightly in size. The sensor area in the T3 is 3 percent smaller. They nevertheless have the same format factor of 1.6. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

In terms of chip-set technology, the T100 uses a more advanced image processing engine (DIGIC 4+) than the T3 (DIGIC 4), with benefits for noise reduction, color accuracy, and processing speed.

With 17.9MP, the T100 offers a higher resolution than the T3 (12.2MP), but the T100 has smaller individual pixels (pixel pitch of 4.31μm versus 5.15μm for the T3). However, the T100 is a much more recent model (by 7 years) than the T3, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixels.

The resolution advantage of the Canon T100 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the T100 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 T3 are 21.4 x 14.2 inches or 54.3 x 36.2 cm for good quality, 17.1 x 11.4 inches or 43.4 x 28.9 cm for very good quality, and 14.2 x 9.5 inches or 36.2 x 24.1 cm for excellent quality prints.

The Canon EOS Rebel T100 has a native sensitivity range from ISO 100 to ISO 6400, which can be extended to ISO 100-12800. The corresponding ISO settings for the Canon EOS Rebel T3 are ISO 100 to ISO 6400 (no boost).

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.

Consistent information on actual sensor performance is available from DXO Mark for many cameras. 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"). The Overall DXO ratings for the two cameras under consideration are close, suggesting that they provide similar imaging performance. 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 T100	APS-C	17.9	5184	3456	1080/30p	21.9	11.4	695	63
2.		Canon T3	APS-C	12.2	4272	2848	720/30p	21.9	11.0	755	62
3.		Canon G1 X	1.5-inch	14.2	4352	3264	1080/24p	21.7	10.8	644	60
4.		Canon SL1	APS-C	17.9	5184	3456	1080/30p	21.8	11.3	843	63
5.		Canon SL2	APS-C	24.0	6000	4000	1080/60p	23.6	13.4	1041	79
6.		Canon T1i	APS-C	15.1	4752	3168	1080/20p	21.7	11.5	663	63
7.		Canon T2i	APS-C	17.9	5184	3456	1080/30p	22.1	11.5	784	66
8.		Canon T5	APS-C	17.9	5184	3456	1080/30p	21.9	11.3	724	63
9.		Canon T5i	APS-C	17.9	5184	3456	1080/30p	21.7	11.2	681	61
10.		Canon T6	APS-C	17.9	5184	3456	1080/30p	22.0	11.7	781	66
11.		Canon T7	APS-C	24.0	6000	4000	1080/30p	23.8	13.3	1684	81
12.		Canon XS	APS-C	10.1	3888	2592	none	22.0	10.9	719	62
Note: DXO values in italics represent estimates based on sensor size and age.

Many modern cameras cannot only take still pictures, but also record videos. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the T100 provides a higher video resolution than the T3. It can shoot video footage at 1080/30p, while the T3 is limited to 720/30p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. The T100 and the T3 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 (0.50x). The table below summarizes some of the other core capabilities of the Canon T100 and Canon T3 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 T100	optical	n	2.7 / 230	fixed	n	1/4000s	3.0/s	Y	n
2.		Canon T3	optical	n	2.7 / 230	fixed	n	1/4000s	3.0/s	Y	n
3.		Canon G1 X	optical	n	3.0 / 922	swivel	n	1/4000s	1.9/s	Y	Y
4.		Canon SL1	optical	n	3.0 / 1040	fixed	Y	1/4000s	4.9/s	Y	n
5.		Canon SL2	optical	n	3.0 / 1040	swivel	Y	1/4000s	5.0/s	Y	n
6.		Canon T1i	optical	n	3.0 / 920	fixed	n	1/4000s	3.4/s	Y	n
7.		Canon T2i	optical	n	3.0 / 1040	fixed	n	1/4000s	3.7/s	Y	n
8.		Canon T5	optical	n	3.0 / 460	fixed	n	1/4000s	3.0/s	Y	n
9.		Canon T5i	optical	n	3.0 / 1040	swivel	Y	1/4000s	5.0/s	Y	n
10.		Canon T6	optical	n	3.0 / 920	fixed	n	1/4000s	3.0/s	Y	n
11.		Canon T7	optical	n	3.0 / 920	fixed	n	1/4000s	3.0/s	Y	n
12.		Canon XS	optical	n	2.5 / 230	fixed	n	1/4000s	3.0/s	Y	n
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

Concerning the storage of imaging data, both the T100 and the T3 write their files to SDXC 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 EOS Rebel T100 and Canon EOS Rebel T3 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 T100	Y	mono / mono	-	-	mini	2.0	Y	Y	-
2.		Canon T3	Y	stereo / mono	-	-	mini	2.0	-	-	-
3.		Canon G1 X	Y	stereo / mono	-	-	mini	2.0	-	-	-
4.		Canon SL1	Y	mono / mono	Y	-	mini	2.0	-	-	-
5.		Canon SL2	Y	stereo / mono	Y	-	mini	2.0	Y	Y	Y
6.		Canon T1i	Y	mono / mono	-	-	mini	2.0	-	-	-
7.		Canon T2i	Y	stereo / -	Y	-	mini	2.0	-	-	-
8.		Canon T5	Y	mono / mono	-	-	mini	2.0	-	-	-
9.		Canon T5i	Y	stereo / mono	Y	-	mini	2.0	-	-	-
10.		Canon T6	Y	mono / mono	-	-	mini	2.0	Y	Y	-
11.		Canon T7	Y	mono / mono	-	-	mini	2.0	Y	Y	-
12.		Canon XS	Y	- / -	-	-	-	2.0	-	-	-

It is notable that the T100 offers wifi support, while the T3 does not. Wifi can be a very convenient means to transfer image data to an off-camera location.

The T100 is a recent model that features in the current product line-up of Canon. In contrast, the T3 has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the T3 was succeeded by the Canon T5. Further information on the features and operation of the T100 and T3 can be found, respectively, in the Canon T100 Manual (free pdf) or the online Canon T3 Manual.

Review summary

So how do things add up? Is there a clear favorite between the Canon T100 and the Canon T3? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.

Reasons to prefer the Canon EOS Rebel T100:

• More detail: Offers more megapixels (17.9 vs 12.2MP) with a 21% higher linear resolution.
• Better jpgs: Has a more modern image processing engine (DIGIC 4+ vs DIGIC 4).
• Better video: Provides higher definition movie capture (1080/30p vs 720/30p).
• Less heavy: Is lighter (by 59g or 12 percent) and hence easier to carry around.
• Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
• Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
• More affordable: Was introduced into a lower priced segment (11 percent cheaper at launch).
• More modern: Reflects 7 years of technical progress since the T3 launch.

Advantages of the Canon EOS Rebel T3:

• Longer lasting: Gets more shots (700 versus 500) out of a single battery charge.
• More heavily discounted: Has been around for much longer (launched in February 2011).

If the count of individual advantages (bullet points above) is taken as a guide, the T100 is the clear winner of the match-up (8 : 2 points). However, the relevance of individual strengths will vary across photographers, so that you might want to apply your own weighing scheme to the summary points when reflecting and deciding on a new camera. 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 T100 and the Canon T3 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 remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the T100 or the T3. 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 following table reports the overall ratings of the cameras as published by some of the major camera 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 (USD)	Street Price
1.		Canon T100	..	o	3/5	..	3.5/5	3.5/5	Feb 2018	399	amazon.com
2.		Canon T3	..	80/100	..	69/100	4/5	4.5/5	Feb 2011	449	ebay.com
3.		Canon G1 X	5/5	+	..	76/100	4/5	4.5/5	Jan 2012	799	ebay.com
4.		Canon SL1	4/5	+	..	78/100	4/5	4/5	Mar 2013	549	ebay.com
5.		Canon SL2	4/5	+ +	4/5	78/100	4.5/5	4.5/5	Jun 2017	549	ebay.com
6.		Canon T1i	..	+ +	..	74/100	4.5/5	4.5/5	Mar 2009	799	ebay.com
7.		Canon T2i	..	+ +	..	77/100	4/5	4.5/5	Feb 2010	699	ebay.com
8.		Canon T5	3/5	+	..	..	4/5	4.5/5	Feb 2014	449	ebay.com
9.		Canon T5i	..	..	..	76/100	4.5/5	4.5/5	Mar 2013	649	ebay.com
10.		Canon T6	4/5	o	4/5	73/100	4/5	4/5	Mar 2016	449	ebay.com
11.		Canon T7	..	o	3.5/5	..	3.5/5	3.5/5	Feb 2018	449	amazon.com
12.		Canon XS	..	82/100	..	+ +	3.5/5	4.5/5	Jun 2008	449	ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

Care should be taken when interpreting the review scores above, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

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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 use the search menu below. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.

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