Canon 550D vs T1i

The Canon EOS 550D (called Canon T2i in some regions) and the Canon EOS Rebel T1i (labelled Canon 500D in some countries) are two digital cameras that were officially introduced, respectively, in February 2010 and March 2009. Both are DSLR (Digital Single Lens Reflex) cameras that are equipped with an APS-C sensor. The 550D has a resolution of 17.9 megapixels, whereas the T1i provides 15.1 MP.

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

Headline Specifications

Canon 550D		Canon T1i
Digital single lens reflex		Digital single lens reflex
Canon EF mount lenses		Canon EF mount lenses
17.9 MP – APS-C sensor		15.1 MP – APS-C sensor
1080/30p Video		1080/20p Video
ISO 100-6,400 (100 - 12,800)		ISO 100-6,400 (100 - 12,800)
Optical viewfinder		Optical viewfinder
3.0" LCD – 1040k dots		3.0" LCD – 920k dots
Fixed screen (not touch-sensitive)		Fixed screen (not touch-sensitive)
3.7 shutter flaps per second		3.4 shutter flaps per second
440 shots per battery charge		400 shots per battery charge
129 x 98 x 62 mm, 530 g		129 x 98 x 62 mm, 520 g

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Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS 550D and the Canon EOS Rebel T1i? 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 550D and the Canon T1i 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 dimensions are rounded to the nearest millimeter.

In this particular case, the Canon 550D and the Canon T1i have exactly the same width and height, and, thus, have identically-sized bodies. However, the T1i is slightly lighter (2 percent) than the 550D. In this context, it is worth noting that neither the 550D nor the T1i 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.

Concerning battery life, the 550D gets 440 shots out of its Canon LP-E8 battery, while the T1i can take 400 images on a single charge of its Canon LP-E5 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 (USD)	Street Price
1.		Canon 550D	129 mm	98 mm	62 mm	530 g	440	n	Feb 2010	699	ebay.com
2.		Canon T1i	129 mm	98 mm	62 mm	520 g	400	n	Mar 2009	799	ebay.com
3.		Canon 500D	129 mm	98 mm	62 mm	520 g	400	n	Mar 2009	799	ebay.com
4.		Canon 600D	133 mm	100 mm	80 mm	570 g	440	n	Feb 2011	599	ebay.com
5.		Canon 650D	133 mm	100 mm	79 mm	575 g	440	n	Jun 2012	849	ebay.com
6.		Canon 700D	133 mm	100 mm	79 mm	580 g	440	n	Mar 2013	649	ebay.com
7.		Canon 750D	132 mm	101 mm	78 mm	555 g	440	n	Feb 2015	749	ebay.com
8.		Canon 760D	132 mm	101 mm	78 mm	565 g	440	n	Feb 2015	649	ebay.com
9.		Canon 1100D	130 mm	100 mm	78 mm	495 g	700	n	Feb 2011	449	ebay.com
10.		Canon 1200D	130 mm	100 mm	78 mm	480 g	500	n	Feb 2014	449	ebay.com
11.		Canon 4000D	129 mm	102 mm	77 mm	436 g	500	n	Feb 2018	399	amazon.com
12.		Canon T2i	129 mm	98 mm	62 mm	530 g	440	n	Feb 2010	699	ebay.com
13.		Canon T4i	133 mm	100 mm	79 mm	575 g	440	n	Jun 2012	849	ebay.com
14.		Canon T6	129 mm	101 mm	78 mm	485 g	500	n	Mar 2016	449	ebay.com
15.		Canon T6i	132 mm	101 mm	78 mm	555 g	440	n	Feb 2015	749	ebay.com
16.		Canon XSi	129 mm	98 mm	62 mm	524 g	500	n	Jan 2008	799	ebay.com
17.		Nikon D5100	128 mm	97 mm	79 mm	560 g	660	n	Apr 2011	749	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

The price is, of course, an important factor in any camera decision. 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 550D was launched at a somewhat lower price (by 13 percent) than the T1i, 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 size of the sensor inside a digital camera is one of the key determinants 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. 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 tend to be associated with larger, more expensive camera bodies 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.

While the two cameras under review share the same sensor size, the 550D offers a higher resolution of 17.9 megapixels, compared with 15.1 MP of the T1i. This megapixels advantage translates into a 9 percent gain in linear resolution. On the other hand, these sensor specs imply that the 550D has a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 4.31μm versus 4.69μm for the T1i). In this context, it should be noted, however, that the 550D is a somewhat more recent model (by 10 months) than the T1i, and its sensor might have benefitted from technological advances during this time that at least partly compensate for the smaller pixel size.

The resolution advantage of the Canon 550D implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the 550D 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 T1i are 23.8 x 15.8 inches or 60.4 x 40.2 cm for good quality, 19 x 12.7 inches or 48.3 x 32.2 cm for very good quality, and 15.8 x 10.6 inches or 40.2 x 26.8 cm for excellent quality prints.

The Canon EOS 550D has a native sensitivity range from ISO 100 to ISO 6400, which can be extended to ISO 100-12800. The Canon EOS Rebel T1i 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.

Consistent information on actual sensor performance is available from DXO Mark for many cameras. 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 Overall DXO ratings for the two cameras under consideration are close, suggesting that they provide similar imaging performance. 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 550D	APS-C	17.9	5184	3456	1080/30p	22.1	11.5	784	66
2.		Canon T1i	APS-C	15.1	4752	3168	1080/20p	21.7	11.5	663	63
3.		Canon 500D	APS-C	15.1	4752	3168	1080/20p	21.7	11.5	663	63
4.		Canon 600D	APS-C	17.9	5184	3456	1080/30p	22.1	11.5	793	65
5.		Canon 650D	APS-C	17.9	5184	3456	1080/30p	21.7	11.2	722	62
6.		Canon 700D	APS-C	17.9	5184	3456	1080/30p	21.7	11.2	681	61
7.		Canon 750D	APS-C	24.0	6000	4000	1080/30p	22.7	12.0	919	71
8.		Canon 760D	APS-C	24.0	6000	4000	1080/30p	22.6	12.0	915	70
9.		Canon 1100D	APS-C	12.2	4272	2848	720/30p	21.9	11.0	755	62
10.		Canon 1200D	APS-C	17.9	5184	3456	1080/30p	21.9	11.3	724	63
11.		Canon 4000D	APS-C	17.9	5184	3456	1080/30p	21.9	11.4	695	63
12.		Canon T2i	APS-C	17.9	5184	3456	1080/30p	22.1	11.5	784	66
13.		Canon T4i	APS-C	17.9	5184	3456	1080/30p	21.7	11.2	722	62
14.		Canon T6	APS-C	17.9	5184	3456	1080/30p	22.0	11.7	781	66
15.		Canon T6i	APS-C	24.0	6000	4000	1080/30p	22.7	12.0	919	71
16.		Canon XSi	APS-C	12.2	4272	2848	none	21.9	10.8	692	61
17.		Nikon D5100	APS-C	16.1	4928	3264	1080/30p	23.5	13.6	1183	80

Many modern cameras cannot only take still pictures, but also record videos. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the 550D provides a higher frame rate than the T1i. It can shoot video footage at 1080/30p, while the T1i is limited to 1080/20p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. The 550D and the T1i 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 (0.54x). The adjacent table lists some of the other core features of the Canon 550D and Canon T1i 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 550D	optical	n	3.0 / 1040	fixed	n	1/4000s	3.7/s	Y	n
2.		Canon T1i	optical	n	3.0 / 920	fixed	n	1/4000s	3.4/s	Y	n
3.		Canon 500D	optical	n	3.0 / 920	fixed	n	1/4000s	3.4/s	Y	n
4.		Canon 600D	optical	n	3.0 / 1040	swivel	n	1/4000s	3.7/s	Y	n
5.		Canon 650D	optical	n	3.0 / 1040	swivel	Y	1/4000s	5.0/s	Y	n
6.		Canon 700D	optical	n	3.0 / 1040	swivel	Y	1/4000s	5.0/s	Y	n
7.		Canon 750D	optical	n	3.0 / 1040	swivel	Y	1/4000s	5.0/s	Y	n
8.		Canon 760D	optical	Y	3.0 / 1040	swivel	Y	1/4000s	5.0/s	Y	n
9.		Canon 1100D	optical	n	2.7 / 230	fixed	n	1/4000s	3.0/s	Y	n
10.		Canon 1200D	optical	n	3.0 / 460	fixed	n	1/4000s	3.0/s	Y	n
11.		Canon 4000D	optical	n	2.7 / 230	fixed	n	1/4000s	3.0/s	Y	n
12.		Canon T2i	optical	n	3.0 / 1040	fixed	n	1/4000s	3.7/s	Y	n
13.		Canon T4i	optical	n	3.0 / 1040	swivel	Y	1/4000s	5.0/s	Y	n
14.		Canon T6	optical	n	3.0 / 920	fixed	n	1/4000s	3.0/s	Y	n
15.		Canon T6i	optical	n	3.0 / 1040	swivel	Y	1/4000s	5.0/s	Y	n
16.		Canon XSi	optical	n	3.0 / 230	fixed	n	1/4000s	3.5/s	Y	n
17.		Nikon D5100	optical	n	3.0 / 921	swivel	n	1/4000s	4.0/s	Y	n
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

The 550D writes its imaging data to SDXC cards, while the T1i uses SDHC 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 550D and Canon EOS Rebel T1i 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 550D	Y	stereo / -	Y	-	mini	2.0	-	-	-
2.		Canon T1i	Y	mono / mono	-	-	mini	2.0	-	-	-
3.		Canon 500D	Y	mono / mono	-	-	mini	2.0	-	-	-
4.		Canon 600D	Y	mono / mono	Y	-	mini	2.0	-	-	-
5.		Canon 650D	Y	stereo / mono	Y	-	mini	2.0	-	-	-
6.		Canon 700D	Y	stereo / mono	Y	-	mini	2.0	-	-	-
7.		Canon 750D	Y	stereo / mono	Y	-	mini	2.0	Y	Y	-
8.		Canon 760D	Y	stereo / mono	Y	-	mini	2.0	Y	Y	-
9.		Canon 1100D	Y	stereo / mono	-	-	mini	2.0	-	-	-
10.		Canon 1200D	Y	mono / mono	-	-	mini	2.0	-	-	-
11.		Canon 4000D	Y	mono / mono	-	-	mini	2.0	Y	Y	-
12.		Canon T2i	Y	stereo / -	Y	-	mini	2.0	-	-	-
13.		Canon T4i	Y	stereo / mono	Y	-	mini	2.0	-	-	-
14.		Canon T6	Y	mono / mono	-	-	mini	2.0	Y	Y	-
15.		Canon T6i	Y	stereo / mono	Y	-	mini	2.0	Y	Y	-
16.		Canon XSi	Y	- / -	-	-	mini	2.0	-	-	-
17.		Nikon D5100	Y	mono / mono	Y	-	mini	2.0	-	-	-

It is notable that the 550D has a microphone port, which is missing on the T1i. Such an external microphone input can help to substantially improve the quality of audio recordings when a good external microphone is used.

Both the 550D and the T1i have been discontinued, but can regularly be found used on ebay. The T1i was replaced by the Canon T2i, while the 550D was followed by the Canon 600D. Further information on the features and operation of the 550D and T1i can be found, respectively, in the Canon 550D Manual (free pdf) or the online Canon T1i Manual.

Review summary

So what is the bottom line? Which of the two cameras – the Canon 550D or the Canon T1i – has the upper hand? Is one clearly better than the other? The listing below highlights the relative strengths of the two models.

Advantages of the Canon EOS 550D:

• More detail: Offers more megapixels (17.9 vs 15.1MP) with a 9% higher linear resolution.
• Better video: Provides higher movie framerates (1080/30p versus 1080/20p).
• Better sound: Can connect to an external microphone for higher quality sound recording.
• More detailed LCD: Has a higher resolution rear screen (1040k vs 920k dots).
• More affordable: Was introduced into a lower priced segment (13 percent cheaper at launch).
• More modern: Is somewhat more recent (announced 10 months after the T1i).

Arguments in favor of the Canon EOS Rebel T1i:

• More heavily discounted: Has been on the market for longer (launched in March 2009).

If the number of relative strengths (bullet points above) is taken as a guide, the 550D is the clear winner of the match-up (6 : 1 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 550D and the Canon T1i 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 550D or the T1i. 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 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 550D	..	+ +	..	77/100	4/5	4.5/5	Feb 2010	699	ebay.com
2.		Canon T1i	..	+ +	..	74/100	4.5/5	4.5/5	Mar 2009	799	ebay.com
3.		Canon 500D	..	+ +	..	74/100	4.5/5	4.5/5	Mar 2009	799	ebay.com
4.		Canon 600D	3/5	o	..	77/100	4.5/5	4.5/5	Feb 2011	599	ebay.com
5.		Canon 650D	4/5	+ +	..	77/100	4.5/5	4.5/5	Jun 2012	849	ebay.com
6.		Canon 700D	..	..	..	76/100	4.5/5	4.5/5	Mar 2013	649	ebay.com
7.		Canon 750D	5/5	..	..	75/100	4.5/5	4.5/5	Feb 2015	749	ebay.com
8.		Canon 760D	5/5	+	..	77/100	4.5/5	4.5/5	Feb 2015	649	ebay.com
9.		Canon 1100D	..	80/100	..	69/100	4/5	4.5/5	Feb 2011	449	ebay.com
10.		Canon 1200D	3/5	+	..	..	4/5	4.5/5	Feb 2014	449	ebay.com
11.		Canon 4000D	2.5/5	o	3/5	..	3.5/5	3.5/5	Feb 2018	399	amazon.com
12.		Canon T2i	..	+ +	..	77/100	4/5	4.5/5	Feb 2010	699	ebay.com
13.		Canon T4i	4/5	+ +	..	77/100	4.5/5	4.5/5	Jun 2012	849	ebay.com
14.		Canon T6	4/5	o	4/5	73/100	4/5	4/5	Mar 2016	449	ebay.com
15.		Canon T6i	5/5	..	..	75/100	4.5/5	4.5/5	Feb 2015	749	ebay.com
16.		Canon XSi	..	+ +	..	+ +	4/5	4.5/5	Jan 2008	799	ebay.com
17.		Nikon D5100	5/5	+ +	..	76/100	4.5/5	4.5/5	Apr 2011	749	ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The above review scores should be interpreted with care, though. The ratings are only valid when referring to cameras in the same category and of the same age. Hence, a score should always be seen in the context of the camera's market launch date and its price, 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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