Canon T3 vs Olympus E-5

The Canon EOS Rebel T3 (called Canon 1100D in some regions) and the Olympus E-5 are two digital cameras that were announced, respectively, in February 2011 and September 2010. Both are DSLR (Digital Single Lens Reflex) cameras that are based on an APS-C (T3) and a Four Thirds (E-5) sensor. Both cameras offer a resolution of 12.2 megapixels.

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

Headline Specifications

Canon T3		Olympus E-5
Digital single lens reflex		Digital single lens reflex
Canon EF mount lenses		Four Thirds lenses
12.2 MP – APS-C sensor		12.2 MP – Four Thirds sensor
720/30p Video		720/30p Video
ISO 100-6,400		ISO 100-6,400
Optical viewfinder		Optical viewfinder
2.7" LCD – 230k dots		3.0" LCD – 920k dots
Fixed screen (not touch-sensitive)		Swivel screen (not touch-sensitive)
3 shutter flaps per second		5 shutter flaps per second
Lens stabilization only		In-body stabilization
not weather sealed		Weathersealed body
700 shots per battery charge		750 shots per battery charge
130 x 100 x 78 mm, 495 g		142 x 117 x 75 mm, 873 g

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Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS Rebel T3 and the Olympus E-5? 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 T3 and the Olympus E-5 is provided in the side-by-side display below. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear 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 Olympus E-5 is notably larger (28 percent) than the Canon T3. Moreover, the E-5 is substantially heavier (76 percent) than the T3. It is noteworthy in this context that the E-5 is splash and dust-proof, while the T3 does not feature any corresponding weather-sealing.

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. A larger imaging sensor will tend to go along with bigger and heavier lenses, although exceptions exist. You can compare the optics available for the two cameras in the Canon EF Lens Catalog (T3) and the Four Thirds Lens Catalog (E-5).

Concerning battery life, the T3 gets 700 shots out of its Canon LP-E10 battery, while the E-5 can take 750 images on a single charge of its Olympus BLM-5 power pack.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. If you would like to visualize and compare a different camera combination, you can navigate to the CAM-parator app and make your selection from a broad list of cameras 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 T3	130 mm	100 mm	78 mm	495 g	700	n	Feb 2011	449	ebay.com
2.		Olympus E-5	142 mm	117 mm	75 mm	873 g	750	Y	Sep 2010	1,699	ebay.com
3.		Canon G1 X	117 mm	81 mm	65 mm	534 g	250	n	Jan 2012	799	ebay.com
4.		Canon T2i	129 mm	98 mm	62 mm	530 g	440	n	Feb 2010	699	ebay.com
5.		Canon T3i	133 mm	100 mm	80 mm	570 g	440	n	Feb 2011	599	ebay.com
6.		Canon T4i	133 mm	100 mm	79 mm	575 g	440	n	Jun 2012	849	ebay.com
7.		Canon T5	130 mm	100 mm	78 mm	480 g	500	n	Feb 2014	449	ebay.com
8.		Canon T6	129 mm	101 mm	78 mm	485 g	500	n	Mar 2016	449	ebay.com
9.		Canon T100	129 mm	102 mm	77 mm	436 g	500	n	Feb 2018	399	amazon.com
10.		Canon XS	126 mm	98 mm	65 mm	502 g	500	n	Jun 2008	449	ebay.com
11.		Canon XSi	129 mm	98 mm	62 mm	524 g	500	n	Jan 2008	799	ebay.com
12.		Canon XTi	127 mm	84 mm	65 mm	556 g	370	n	Aug 2006	799	ebay.com
13.		Olympus E-1	141 mm	104 mm	81 mm	738 g	750	Y	Jun 2003	1,699	ebay.com
14.		Olympus E-3	142 mm	116 mm	75 mm	876 g	750	Y	Oct 2007	1,699	ebay.com
15.		Olympus E-30	142 mm	108 mm	75 mm	701 g	750	n	Nov 2008	1,299	ebay.com
16.		Olympus E-510	136 mm	92 mm	68 mm	538 g	750	n	Mar 2007	799	ebay.com
17.		Olympus E-520	136 mm	92 mm	68 mm	535 g	750	n	May 2008	699	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 listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The T3 was launched at a markedly lower price (by 74 percent) than the E-5, which puts it into a different market segment. 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. A large sensor will generally have larger individual pixels that offer better low-light sensitivity, provide wider dynamic range, and have 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Canon T3 features an APS-C sensor and the Olympus E-5 a Four Thirds sensor. The sensor area in the E-5 is 30 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.6 and 2.0. The sensor in the T3 has a native 3:2 aspect ratio, while the one in the E-5 offers a 4:3 aspect.

Even though the T3 has a larger sensor, both cameras offer the same resolution of 12.2 megapixels. This implies that the T3 has a lower pixel density and larger individual pixels (with a pixel pitch of 5.15μm versus 4.29μm for the E-5), which gives it a potential advantage in terms of light gathering capacity. In addition, the T3 is a somewhat more recent model (by 4 months) than the E-5, and its sensor might have benefitted from technological advances during this time.

The Canon EOS Rebel T3 has a native sensitivity range from ISO 100 to ISO 6400. The Olympus E-5 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 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 review, the T3 has a notably higher overall DXO score than the E-5 (overall score 6 points higher), which gives it an advantage in terms of imaging quality. This advantage is based on 0.3 bits higher color depth, 0.5 EV in additional dynamic range, and 0.5 stops in additional low light sensitivity. The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.

Sensor Characteristics

		Camera Model	Sensor Class	Resolution (MP)	Horiz. Pixels	Vert. Pixels	Video Format	DXO Portrait	DXO Landscape	DXO Sports	DXO Overall
1.		Canon T3	APS-C	12.2	4272	2848	720/30p	21.9	11.0	755	62
2.		Olympus E-5	Four Thirds	12.2	4032	3024	720/30p	21.6	10.5	519	56
3.		Canon G1 X	1.5-inch	14.2	4352	3264	1080/24p	21.7	10.8	644	60
4.		Canon T2i	APS-C	17.9	5184	3456	1080/30p	22.1	11.5	784	66
5.		Canon T3i	APS-C	17.9	5184	3456	1080/30p	22.1	11.5	793	65
6.		Canon T4i	APS-C	17.9	5184	3456	1080/30p	21.7	11.2	722	62
7.		Canon T5	APS-C	17.9	5184	3456	1080/30p	21.9	11.3	724	63
8.		Canon T6	APS-C	17.9	5184	3456	1080/30p	22.0	11.7	781	66
9.		Canon T100	APS-C	17.9	5184	3456	1080/30p	21.9	11.4	695	63
10.		Canon XS	APS-C	10.1	3888	2592	none	22.0	10.9	719	62
11.		Canon XSi	APS-C	12.2	4272	2848	none	21.9	10.8	692	61
12.		Canon XTi	APS-C	10.1	3888	2592	none	22.1	11.0	664	62
13.		Olympus E-1	Four Thirds	4.9	2560	1920	none	20.0	9.7	-145	44
14.		Olympus E-3	Four Thirds	10.0	3648	2736	none	21.6	10.5	571	56
15.		Olympus E-30	Four Thirds	12.2	4032	3024	none	21.3	10.4	530	55
16.		Olympus E-510	Four Thirds	10.0	3648	2736	none	21.2	10.0	442	52
17.		Olympus E-520	Four Thirds	10.0	3648	2736	none	21.4	10.4	548	55
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, and both provide the same movie specifications (720/30p).

Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. The T3 and the E-5 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 viewfinder in the E-5 offers a wider field of view (100%) than the one in the T3 (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the E-5 has a higher magnification (0.58x vs 0.50x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The table below summarizes some of the other core capabilities of the Canon T3 and Olympus E-5 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 T3	optical	n	2.7 / 230	fixed	n	1/4000s	3.0/s	Y	n
2.		Olympus E-5	optical	Y	3.0 / 920	swivel	n	1/8000s	5.0/s	Y	Y
3.		Canon G1 X	optical	n	3.0 / 922	swivel	n	1/4000s	1.9/s	Y	Y
4.		Canon T2i	optical	n	3.0 / 1040	fixed	n	1/4000s	3.7/s	Y	n
5.		Canon T3i	optical	n	3.0 / 1040	swivel	n	1/4000s	3.7/s	Y	n
6.		Canon T4i	optical	n	3.0 / 1040	swivel	Y	1/4000s	5.0/s	Y	n
7.		Canon T5	optical	n	3.0 / 460	fixed	n	1/4000s	3.0/s	Y	n
8.		Canon T6	optical	n	3.0 / 920	fixed	n	1/4000s	3.0/s	Y	n
9.		Canon T100	optical	n	2.7 / 230	fixed	n	1/4000s	3.0/s	Y	n
10.		Canon XS	optical	n	2.5 / 230	fixed	n	1/4000s	3.0/s	Y	n
11.		Canon XSi	optical	n	3.0 / 230	fixed	n	1/4000s	3.5/s	Y	n
12.		Canon XTi	optical	n	2.5 / 230	fixed	n	1/4000s	3.0/s	Y	n
13.		Olympus E-1	optical	Y	1.8 / 134	fixed	n	1/4000s	3.0/s	n	n
14.		Olympus E-3	optical	Y	2.5 / 230	swivel	n	1/8000s	5.0/s	Y	Y
15.		Olympus E-30	optical	Y	2.7 / 230	swivel	n	1/8000s	5.0/s	Y	Y
16.		Olympus E-510	optical	n	2.5 / 215	fixed	n	1/4000s	3.0/s	Y	Y
17.		Olympus E-520	optical	n	2.7 / 215	fixed	n	1/4000s	3.5/s	Y	Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One feature that differentiates the E-5 and the T3 is in-body image stabilization (IBIS). The E-5 reduces the risk of handshake-induced blur with all attached lenses, while the T3 offers no blur reduction with lenses that themselves do not provide optical image stabilization.

The T3 writes its imaging data to SDXC cards, while the E-5 uses Compact Flash or xD Picture cards. The E-5 features dual card slots, which can be very useful in case a memory card fails. In contrast, the T3 only has one slot.

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 T3 and Olympus E-5 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 T3	Y	stereo / mono	-	-	mini	2.0	-	-	-
2.		Olympus E-5	Y	stereo / -	-	-	mini	2.0	-	-	-
3.		Canon G1 X	Y	stereo / mono	-	-	mini	2.0	-	-	-
4.		Canon T2i	Y	stereo / -	Y	-	mini	2.0	-	-	-
5.		Canon T3i	Y	mono / mono	Y	-	mini	2.0	-	-	-
6.		Canon T4i	Y	stereo / mono	Y	-	mini	2.0	-	-	-
7.		Canon T5	Y	mono / mono	-	-	mini	2.0	-	-	-
8.		Canon T6	Y	mono / mono	-	-	mini	2.0	Y	Y	-
9.		Canon T100	Y	mono / mono	-	-	mini	2.0	Y	Y	-
10.		Canon XS	Y	- / -	-	-	-	2.0	-	-	-
11.		Canon XSi	Y	- / -	-	-	mini	2.0	-	-	-
12.		Canon XTi	Y	- / -	-	-	-	2.0	-	-	-
13.		Olympus E-1	Y	- / -	-	-	-	2.0	-	-	-
14.		Olympus E-3	Y	- / -	-	-	-	2.0	-	-	-
15.		Olympus E-30	Y	- / -	-	-	-	2.0	-	-	-
16.		Olympus E-510	Y	- / -	-	-	-	2.0	-	-	-
17.		Olympus E-520	Y	- / -	-	-	-	2.0	-	-	-

Studio photographers will appreciate that the Olympus E-5 (unlike the T3) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the T3 and the E-5 have been discontinued, but can regularly be found used on ebay. The T3 was replaced by the Canon T5, while the E-5 does not have a direct successor. Further information on the features and operation of the T3 and E-5 can be found, respectively, in the Canon T3 Manual (free pdf) or the online Olympus E-5 Manual.

Review summary

So what conclusions can be drawn? Is the Canon T3 better than the Olympus E-5 or vice versa? A synthesis of the relative strong points of each of the models is listed below.

Advantages of the Canon EOS Rebel T3:

• Better image quality: Scores markedly higher (6 points) in the DXO overall assessment.
• Better low-light sensitivity: Requires less light for good images (0.5 stops ISO advantage).
• More compact: Is smaller (130x100mm vs 142x117mm) and thus needs less room in the bag.
• Less heavy: Is lighter (by 378g or 43 percent) and hence easier to carry around.
• More affordable: Was introduced into a lower priced category (74 percent cheaper at launch).
• More modern: Is somewhat more recent (announced 4 months after the E-5).

Reasons to prefer the Olympus E-5:

• More complete view: Has a viewfinder with a larger field of view (100% vs 95%).
• Larger viewfinder image: Features a viewfinder with a higher magnification (0.58x vs 0.50x).
• Easier setting verification: Features a control panel on top to check shooting parameters.
• Larger screen: Has a bigger rear LCD (3.0" vs 2.7") for image review and settings control.
• More detailed LCD: Has a higher resolution rear screen (920k vs 230k 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 shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
• Faster burst: Shoots at higher frequency (5 vs 3 flaps/sec) to capture the decisive moment.
• Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
• Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
• Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
• Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
• More heavily discounted: Has been on the market for longer (launched in September 2010).

If the count of relative strengths (bullet points above) is taken as a measure, the E-5 is the clear winner of the contest (14 : 6 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 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 T3 and the Olympus E-5 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 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 T3 or the E-5. 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 why expert reviews are important. The adjacent summary-table relays the overall verdicts of several of the most popular 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 T3	..	80/100	..	69/100	4/5	4.5/5	Feb 2011	449	ebay.com
2.		Olympus E-5	4/5	..	..	75/100	4/5	4.5/5	Sep 2010	1,699	ebay.com
3.		Canon G1 X	5/5	+	..	76/100	4/5	4.5/5	Jan 2012	799	ebay.com
4.		Canon T2i	..	+ +	..	77/100	4/5	4.5/5	Feb 2010	699	ebay.com
5.		Canon T3i	3/5	o	..	77/100	4.5/5	4.5/5	Feb 2011	599	ebay.com
6.		Canon T4i	4/5	+ +	..	77/100	4.5/5	4.5/5	Jun 2012	849	ebay.com
7.		Canon T5	3/5	+	..	..	4/5	4.5/5	Feb 2014	449	ebay.com
8.		Canon T6	4/5	o	4/5	73/100	4/5	4/5	Mar 2016	449	ebay.com
9.		Canon T100	..	o	3/5	..	3.5/5	3.5/5	Feb 2018	399	amazon.com
10.		Canon XS	..	82/100	..	+ +	3.5/5	4.5/5	Jun 2008	449	ebay.com
11.		Canon XSi	..	+ +	..	+ +	4/5	4.5/5	Jan 2008	799	ebay.com
12.		Canon XTi	..	+ +	..	+ +	o	4/5	Aug 2006	799	ebay.com
13.		Olympus E-1	..	..	..	+	o	..	Jun 2003	1,699	ebay.com
14.		Olympus E-3	..	88/100	..	+ +	o	4/5	Oct 2007	1,699	ebay.com
15.		Olympus E-30	..	..	..	71/100	4.5/5	4/5	Nov 2008	1,299	ebay.com
16.		Olympus E-510	..	89/100	..	+ +	3.5/5	4.5/5	Mar 2007	799	ebay.com
17.		Olympus E-520	..	87/100	..	+ +	4.5/5	4.5/5	May 2008	699	ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

Care should be taken when interpreting the review scores above, 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 comparing ratings of very distinct cameras or ones that are far apart in terms of their release date 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

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