Canon 1100D vs XSi

The Canon EOS 1100D (called Canon T3 in some regions) and the Canon EOS Rebel XSi (labelled Canon 450D in some countries) are two digital cameras that were announced, respectively, in February 2011 and January 2008. Both are DSLR (Digital Single Lens Reflex) cameras that are equipped with an APS-C 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 1100D		Canon XSi
Digital single lens reflex		Digital single lens reflex
Canon EF mount lenses		Canon EF mount lenses
12.2 MP – APS-C sensor		12.2 MP – APS-C sensor
720/30p Video		no Video
ISO 100-6,400		ISO 100-1,600
Optical viewfinder		Optical viewfinder
2.7" LCD – 230k dots		3.0" LCD – 230k dots
Fixed screen (not touch-sensitive)		Fixed screen (not touch-sensitive)
3 shutter flaps per second		3.5 shutter flaps per second
700 shots per battery charge		500 shots per battery charge
130 x 100 x 78 mm, 495 g		129 x 98 x 62 mm, 524 g

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Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS 1100D and the Canon EOS Rebel XSi? 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 1100D and the Canon XSi. 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 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 XSi is somewhat smaller (3 percent) than the Canon 1100D. However, the XSi is markedly heavier (6 percent) than the 1100D. In this context, it is worth noting that neither the 1100D nor the XSi 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 1100D gets 700 shots out of its Canon LP-E10 battery, while the XSi can take 500 images on a single charge of its Canon LP-E5 power pack.

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 (USD)	Street Price
1.		Canon 1100D	130 mm	100 mm	78 mm	495 g	700	n	Feb 2011	449	ebay.com
2.		Canon XSi	129 mm	98 mm	62 mm	524 g	500	n	Jan 2008	799	ebay.com
3.		Canon 40D	146 mm	108 mm	74 mm	822 g	750	n	Aug 2007	1,299	ebay.com
4.		Canon 450D	129 mm	98 mm	62 mm	524 g	500	n	Jan 2008	799	ebay.com
5.		Canon 550D	129 mm	98 mm	62 mm	530 g	440	n	Feb 2010	699	ebay.com
6.		Canon 600D	133 mm	100 mm	80 mm	570 g	440	n	Feb 2011	599	ebay.com
7.		Canon 650D	133 mm	100 mm	79 mm	575 g	440	n	Jun 2012	849	ebay.com
8.		Canon 1000D	126 mm	98 mm	65 mm	502 g	500	n	Jun 2008	449	ebay.com
9.		Canon 1200D	130 mm	100 mm	78 mm	480 g	500	n	Feb 2014	449	ebay.com
10.		Canon 2000D	129 mm	101 mm	78 mm	475 g	500	n	Feb 2018	449	amazon.com
11.		Canon 4000D	129 mm	102 mm	77 mm	436 g	500	n	Feb 2018	399	amazon.com
12.		Canon G1 X	117 mm	81 mm	65 mm	534 g	250	n	Jan 2012	799	ebay.com
13.		Canon SX50	123 mm	87 mm	106 mm	595 g	315	n	Sep 2012	429	ebay.com
14.		Canon T1i	129 mm	98 mm	62 mm	520 g	400	n	Mar 2009	799	ebay.com
15.		Canon T3	130 mm	100 mm	78 mm	495 g	700	n	Feb 2011	449	ebay.com
16.		Canon T4i	133 mm	100 mm	79 mm	575 g	440	n	Jun 2012	849	ebay.com
17.		Canon XTi	127 mm	84 mm	65 mm	556 g	370	n	Aug 2006	799	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 listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The 1100D was launched at a markedly lower price (by 44 percent) than the XSi, 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.

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. 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 XSi is 2 percent bigger. 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 1100D uses a more advanced image processing engine (DIGIC 4) than the XSi (DIGIC 3), with benefits for noise reduction, color accuracy, and processing speed.

Even though the XSi has a slightly larger sensor, both cameras offer the same resolution of 12.2 megapixels. This implies that the XSi has a lower pixel density and marginally larger individual pixels (with a pixel pitch of 5.19μm versus 5.15μm for the 1100D), which gives it a potential advantage in terms of light gathering capacity. It should, however, be noted that the 1100D is much more recent (by 3 years) than the XSi, and its sensor will have benefitted from technological advances during this time that at least partly compensate for the smaller pixel size.

The Canon EOS 1100D has a native sensitivity range from ISO 100 to ISO 6400. The corresponding ISO settings for the Canon EOS Rebel XSi are ISO 100 to ISO 1600 (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.

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 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 1100D	APS-C	12.2	4272	2848	720/30p	21.9	11.0	755	62
2.		Canon XSi	APS-C	12.2	4272	2848	none	21.9	10.8	692	61
3.		Canon 40D	APS-C	10.1	3888	2592	none	22.1	11.3	703	64
4.		Canon 450D	APS-C	12.2	4272	2848	none	21.9	10.8	692	61
5.		Canon 550D	APS-C	17.9	5184	3456	1080/30p	22.1	11.5	784	66
6.		Canon 600D	APS-C	17.9	5184	3456	1080/30p	22.1	11.5	793	65
7.		Canon 650D	APS-C	17.9	5184	3456	1080/30p	21.7	11.2	722	62
8.		Canon 1000D	APS-C	10.1	3888	2592	none	22.0	10.9	719	62
9.		Canon 1200D	APS-C	17.9	5184	3456	1080/30p	21.9	11.3	724	63
10.		Canon 2000D	APS-C	24.0	6000	4000	1080/30p	22.6	11.9	1009	71
11.		Canon 4000D	APS-C	17.9	5184	3456	1080/30p	21.9	11.4	695	63
12.		Canon G1 X	1.5-inch	14.2	4352	3264	1080/24p	21.7	10.8	644	60
13.		Canon SX50	1/2.3	12.0	4000	3000	1080/24p	20.3	11.2	179	47
14.		Canon T1i	APS-C	15.1	4752	3168	1080/20p	21.7	11.5	663	63
15.		Canon T3	APS-C	12.2	4272	2848	720/30p	21.9	11.0	755	62
16.		Canon T4i	APS-C	17.9	5184	3456	1080/30p	21.7	11.2	722	62
17.		Canon XTi	APS-C	10.1	3888	2592	none	22.1	11.0	664	62

Many modern cameras are not only capable of taking still images, but also of capturing video footage. The 1100D indeed provides movie recording capabilities, while the XSi does not. The highest resolution format that the 1100D can use is 720/30p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. The 1100D and the XSi 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%), but the viewfinder of the XSi has a higher magnification than the one of the 1100D (0.54x vs 0.50x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The adjacent table lists some of the other core features of the Canon 1100D and Canon XSi 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 1100D	optical	n	2.7 / 230	fixed	n	1/4000s	3.0/s	Y	n
2.		Canon XSi	optical	n	3.0 / 230	fixed	n	1/4000s	3.5/s	Y	n
3.		Canon 40D	optical	Y	3.0 / 230	fixed	n	1/8000s	6.5/s	Y	n
4.		Canon 450D	optical	n	3.0 / 230	fixed	n	1/4000s	3.5/s	Y	n
5.		Canon 550D	optical	n	3.0 / 1040	fixed	n	1/4000s	3.7/s	Y	n
6.		Canon 600D	optical	n	3.0 / 1040	swivel	n	1/4000s	3.7/s	Y	n
7.		Canon 650D	optical	n	3.0 / 1040	swivel	Y	1/4000s	5.0/s	Y	n
8.		Canon 1000D	optical	n	2.5 / 230	fixed	n	1/4000s	3.0/s	Y	n
9.		Canon 1200D	optical	n	3.0 / 460	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 4000D	optical	n	2.7 / 230	fixed	n	1/4000s	3.0/s	Y	n
12.		Canon G1 X	optical	n	3.0 / 922	swivel	n	1/4000s	1.9/s	Y	Y
13.		Canon SX50	202	n	3.0 / 461	swivel	n	1/2000s	2.2/s	Y	Y
14.		Canon T1i	optical	n	3.0 / 920	fixed	n	1/4000s	3.4/s	Y	n
15.		Canon T3	optical	n	2.7 / 230	fixed	n	1/4000s	3.0/s	Y	n
16.		Canon T4i	optical	n	3.0 / 1040	swivel	Y	1/4000s	5.0/s	Y	n
17.		Canon XTi	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.

The 1100D writes its imaging data to SDXC cards, while the XSi 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 1100D and Canon EOS Rebel XSi 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 1100D	Y	stereo / mono	-	-	mini	2.0	-	-	-
2.		Canon XSi	Y	- / -	-	-	mini	2.0	-	-	-
3.		Canon 40D	Y	- / -	-	-	-	2.0	-	-	-
4.		Canon 450D	Y	- / -	-	-	mini	2.0	-	-	-
5.		Canon 550D	Y	stereo / -	Y	-	mini	2.0	-	-	-
6.		Canon 600D	Y	mono / mono	Y	-	mini	2.0	-	-	-
7.		Canon 650D	Y	stereo / mono	Y	-	mini	2.0	-	-	-
8.		Canon 1000D	Y	- / -	-	-	-	2.0	-	-	-
9.		Canon 1200D	Y	mono / mono	-	-	mini	2.0	-	-	-
10.		Canon 2000D	Y	mono / mono	-	-	mini	2.0	Y	Y	-
11.		Canon 4000D	Y	mono / mono	-	-	mini	2.0	Y	Y	-
12.		Canon G1 X	Y	stereo / mono	-	-	mini	2.0	-	-	-
13.		Canon SX50	Y	stereo / mono	-	-	mini	2.0	-	-	-
14.		Canon T1i	Y	mono / mono	-	-	mini	2.0	-	-	-
15.		Canon T3	Y	stereo / mono	-	-	mini	2.0	-	-	-
16.		Canon T4i	Y	stereo / mono	Y	-	mini	2.0	-	-	-
17.		Canon XTi	Y	- / -	-	-	-	2.0	-	-	-

Both the 1100D and the XSi have been discontinued, but can regularly be found used on ebay. The XSi was replaced by the Canon T1i, while the 1100D was followed by the Canon 1200D. Further information on the features and operation of the 1100D and XSi can be found, respectively, in the Canon 1100D Manual (free pdf) or the online Canon XSi Manual.

Review summary

So how do things add up? Is there a clear favorite between the Canon 1100D and the Canon XSi? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.

Advantages of the Canon EOS 1100D:

• Better jpgs: Has a more modern image processing engine (DIGIC 4 vs DIGIC 3).
• Broader imaging potential: Can record not only still images but also 720/30p movies.
• Longer lasting: Can take more shots (700 versus 500) on a single battery charge.
• More affordable: Was introduced into a lower priced category (44 percent cheaper at launch).
• More modern: Reflects 3 years of technical progress since the XSi launch.

Arguments in favor of the Canon EOS Rebel XSi:

• Larger viewfinder image: Features a viewfinder with a higher magnification (0.54x vs 0.50x).
• Larger screen: Has a bigger rear LCD (3.0" vs 2.7") for image review and settings control.
• Faster burst: Shoots at higher frequency (3.5 vs 3 flaps/sec) to capture the decisive moment.
• More heavily discounted: Has been around for much longer (launched in January 2008).

If the number of relative strengths (bullet points above) is taken as a guide, the 1100D comes out slightly ahead of the XSi (5 : 4 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 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 1100D and the Canon XSi 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 says little about, for example, the shooting experience and imaging performance of the 1100D and the XSi in practical situations. 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 1100D	..	80/100	..	69/100	4/5	4.5/5	Feb 2011	449	ebay.com
2.		Canon XSi	..	+ +	..	+ +	4/5	4.5/5	Jan 2008	799	ebay.com
3.		Canon 40D	..	+ +	..	+ +	4.5/5	4.5/5	Aug 2007	1,299	ebay.com
4.		Canon 450D	..	+ +	..	+ +	4/5	4.5/5	Jan 2008	799	ebay.com
5.		Canon 550D	..	+ +	..	77/100	4/5	4.5/5	Feb 2010	699	ebay.com
6.		Canon 600D	3/5	o	..	77/100	4.5/5	4.5/5	Feb 2011	599	ebay.com
7.		Canon 650D	4/5	+ +	..	77/100	4.5/5	4.5/5	Jun 2012	849	ebay.com
8.		Canon 1000D	..	82/100	..	+ +	3.5/5	4.5/5	Jun 2008	449	ebay.com
9.		Canon 1200D	3/5	+	..	..	4/5	4.5/5	Feb 2014	449	ebay.com
10.		Canon 2000D	3/5	o	3.5/5	..	3.5/5	3.5/5	Feb 2018	449	amazon.com
11.		Canon 4000D	2.5/5	o	3/5	..	3.5/5	3.5/5	Feb 2018	399	amazon.com
12.		Canon G1 X	5/5	+	..	76/100	4/5	4.5/5	Jan 2012	799	ebay.com
13.		Canon SX50	3/5	+ +	..	72/100	4.5/5	4.5/5	Sep 2012	429	ebay.com
14.		Canon T1i	..	+ +	..	74/100	4.5/5	4.5/5	Mar 2009	799	ebay.com
15.		Canon T3	..	80/100	..	69/100	4/5	4.5/5	Feb 2011	449	ebay.com
16.		Canon T4i	4/5	+ +	..	77/100	4.5/5	4.5/5	Jun 2012	849	ebay.com
17.		Canon XTi	..	+ +	..	+ +	o	4/5	Aug 2006	799	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. 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, 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? In case you are interested in seeing how other cameras pair up, just make a corresponding selection in the search boxes below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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