Canon Rebel vs Sony A5100

The Canon EOS Digital Rebel (called Canon 300D in some regions) and the Sony Alpha A5100 are two digital cameras that were announced, respectively, in August 2003 and August 2014. The Rebel is a DSLR, while the A5100 is a mirrorless interchangeable lens camera. Both cameras are equipped with an APS-C sensor. The Canon has a resolution of 6.3 megapixels, whereas the Sony provides 24 MP.

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

Headline Specifications

Canon Rebel		Sony A5100
Digital single lens reflex		Mirrorless system camera
Canon EF mount lenses		Sony E mount lenses
6.3 MP – APS-C sensor		24 MP – APS-C sensor
no Video		1080/60p Video
ISO 100-1,600		ISO 100-25,600
Optical viewfinder		No viewfinder, LCD framing
1.8" LCD – 118k dots		3.0" LCD – 922k dots
Fixed screen (not touch-sensitive)		Tilting touchscreen
2.5 shutter flaps per second		6 shutter flaps per second
400 shots per battery charge		400 shots per battery charge
142 x 99 x 72 mm, 649 g		110 x 63 x 36 mm, 283 g

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Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS Digital Rebel and the Sony Alpha A5100? 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 physical size and weight of the Canon Rebel and the Sony A5100 are illustrated 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.

The A5100 can be obtained in two different colors (black, white), while the Rebel is only available in silver.

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A5100 is considerably smaller (51 percent) than the Canon Rebel. Moreover, the A5100 is substantially lighter (56 percent) than the Rebel. In this context, it is worth noting that neither the Rebel nor the A5100 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. Both cameras have similarly sized sensors, but DSLRs have a larger flange-to-focal plane distance than mirrorless cameras, which imposes contraints on the optical engineering process and generally leads to bigger and heavier lenses. You can compare the optics available for the two cameras in the Canon EF Lens Catalog (Rebel) and the Sony E-Mount Lens Catalog (A5100). Mirrorless cameras, such as the A5100, have moreover the advantage that they can use many lenses from other systems via adapters, as they have a relatively short flange to focal plane distance.

The power pack in the A5100 can be charged via the USB port, which can be very convenient when travelling.

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	Street Price
1.		Canon Rebel	142 mm	99 mm	72 mm	649 g	400	n	Aug 2003	US$ 899	ebay.com
2.		Sony A5100	110 mm	63 mm	36 mm	283 g	400	n	Aug 2014	US$ 549	ebay.com
3.		Canon 10D	150 mm	107 mm	75 mm	850 g	500	n	Feb 2003	US$ 1 999	ebay.com
4.		Canon 20D	144 mm	106 mm	72 mm	770 g	700	n	Aug 2004	US$ 1 499	ebay.com
5.		Canon T1i	129 mm	98 mm	62 mm	520 g	400	n	Mar 2009	US$ 799	ebay.com
6.		Canon T3i	133 mm	100 mm	80 mm	570 g	440	n	Feb 2011	US$ 599	ebay.com
7.		Canon T4i	133 mm	100 mm	79 mm	575 g	440	n	Jun 2012	US$ 849	ebay.com
8.		Canon T6s	132 mm	101 mm	78 mm	565 g	440	n	Feb 2015	US$ 649	ebay.com
9.		Canon T7i	131 mm	100 mm	76 mm	532 g	600	n	Feb 2017	US$ 749	ebay.com
10.		Canon XT	127 mm	94 mm	64 mm	540 g	400	n	Feb 2005	US$ 899	ebay.com
11.		Canon XTi	127 mm	84 mm	65 mm	556 g	370	n	Aug 2006	US$ 799	ebay.com
12.		Nikon D70	140 mm	111 mm	78 mm	679 g	400	n	Jan 2004	US$ 999	ebay.com
13.		Sony A5000	110 mm	63 mm	36 mm	269 g	420	n	Jan 2014	US$ 449	ebay.com
14.		Sony A6000	120 mm	67 mm	45 mm	344 g	360	n	Feb 2014	US$ 599	ebay.com
15.		Sony NEX-3N	110 mm	62 mm	35 mm	269 g	480	n	Feb 2013	US$ 499	ebay.com
16.		Sony RX100	102 mm	58 mm	36 mm	240 g	330	n	Jun 2012	US$ 649	ebay.com
17.		Sony RX100 IV	102 mm	58 mm	41 mm	298 g	280	n	Jun 2015	US$ 999	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 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 A5100 was launched at a markedly lower price (by 39 percent) than the Rebel, which puts it into a different market segment. Normally, street prices remain initially close to the MSRP, but after a couple of months, the first discounts appear. 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 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. 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, but their sensors differ slightly in size. The sensor area in the A5100 is 7 percent bigger. As a result of these sensor size differences, the cameras have format factors, respectively, of 1.6 (Rebel) and 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

With 24MP, the A5100 offers a higher resolution than the Rebel (6.3MP), but the A5100 has smaller individual pixels (pixel pitch of 3.91μm versus 7.38μm for the Rebel). Yet, the A5100 is a much more recent model (by 11 years) than the Rebel, 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 Sony A5100 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A5100 for good quality output (200 dots per inch) amounts to 30 x 20 inches or 76.2 x 50.8 cm, for very good quality (250 dpi) 24 x 16 inches or 61 x 40.6 cm, and for excellent quality (300 dpi) 20 x 13.3 inches or 50.8 x 33.9 cm. The corresponding values for the Canon Rebel are 15.4 x 10.2 inches or 39 x 26 cm for good quality, 12.3 x 8.2 inches or 31.2 x 20.8 cm for very good quality, and 10.2 x 6.8 inches or 26 x 17.3 cm for excellent quality prints.

The A5100 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Canon EOS Digital Rebel has a native sensitivity range from ISO 100 to ISO 1600. The corresponding ISO settings for the Sony Alpha A5100 are ISO 100 to ISO 25600 (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 assesses and scores the color depth ("DXO Portrait"), dynamic range ("DXO Landscape"), and low-light sensitivity ("DXO Sports") of camera sensors, and also publishes an overall camera score. Of the two cameras under consideration, the A5100 offers substantially better image quality than the Rebel (overall score 25 points higher). The advantage is based on 2.8 bits higher color depth, 1.9 EV in additional dynamic range, and 1.3 stops in additional low light sensitivity. 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 Rebel	APS-C	6.3	3072	2048	none	21.0	10.8	544	55
2.		Sony A5100	APS-C	24.0	6000	4000	1080/60p	23.8	12.7	1347	80
3.		Canon 10D	APS-C	6.3	3072	2048	none	21.1	10.9	571	57
4.		Canon 20D	APS-C	8.2	3504	2336	none	21.9	11.0	721	62
5.		Canon T1i	APS-C	15.1	4752	3168	1080/20p	21.7	11.5	663	63
6.		Canon T3i	APS-C	17.9	5184	3456	1080/30p	22.1	11.5	793	65
7.		Canon T4i	APS-C	17.9	5184	3456	1080/30p	21.7	11.2	722	62
8.		Canon T6s	APS-C	24.0	6000	4000	1080/30p	22.6	12.0	915	70
9.		Canon T7i	APS-C	24.0	6000	4000	1080/60p	23.7	13.1	1586	80
10.		Canon XT	APS-C	8.0	3456	2304	none	21.8	10.8	637	60
11.		Canon XTi	APS-C	10.1	3888	2592	none	22.1	11.0	664	62
12.		Nikon D70	APS-C	6.0	3008	2000	none	20.4	10.3	529	50
13.		Sony A5000	APS-C	19.8	5456	3632	1080/60i	23.8	13.0	1089	79
14.		Sony A6000	APS-C	24.0	6000	4000	1080/60p	24.1	13.1	1347	82
15.		Sony NEX-3N	APS-C	16.0	4912	3264	1080/60i	22.8	12.5	1067	74
16.		Sony RX100	1-inch	20.0	5472	3648	1080/60p	22.6	12.4	390	66
17.		Sony RX100 IV	1-inch	20.0	5472	3648	4K/30p	22.8	12.6	591	70
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. The A5100 indeed provides for movie recording, while the Rebel does not. The highest resolution format that the A5100 can use is 1080/60p.

Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. For example, the Rebel has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the A5100 relies on live view and the rear LCD for framing. The following table reports on some other key feature differences and similarities of the Canon Rebel, the Sony A5100, and comparable 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 Rebel	optical	n	1.8 / 118	fixed	n	1/4000s	2.5/s	Y	n
2.		Sony A5100	none	n	3.0 / 922	tilting	Y	1/4000s	6.0/s	Y	n
3.		Canon 10D	optical	Y	1.8 / 118	fixed	n	1/4000s	3.0/s	Y	n
4.		Canon 20D	optical	Y	1.8 / 118	fixed	n	1/8000s	5.0/s	Y	n
5.		Canon T1i	optical	n	3.0 / 920	fixed	n	1/4000s	3.4/s	Y	n
6.		Canon T3i	optical	n	3.0 / 1040	swivel	n	1/4000s	3.7/s	Y	n
7.		Canon T4i	optical	n	3.0 / 1040	swivel	Y	1/4000s	5.0/s	Y	n
8.		Canon T6s	optical	Y	3.0 / 1040	swivel	Y	1/4000s	5.0/s	Y	n
9.		Canon T7i	optical	n	3.0 / 1040	swivel	Y	1/4000s	6.0/s	Y	n
10.		Canon XT	optical	n	1.8 / 115	fixed	n	1/4000s	3.0/s	Y	n
11.		Canon XTi	optical	n	2.5 / 230	fixed	n	1/4000s	3.0/s	Y	n
12.		Nikon D70	optical	n	1.8 / 130	fixed	n	1/8000s	3.0/s	Y	n
13.		Sony A5000	none	n	3.0 / 461	tilting	n	1/4000s	3.5/s	Y	n
14.		Sony A6000	1440	n	3.0 / 922	tilting	n	1/4000s	11.0/s	Y	n
15.		Sony NEX-3N	optional	n	3.0 / 460	tilting	n	1/4000s	4.0/s	Y	n
16.		Sony RX100	none	n	3.0 / 1229	fixed	n	1/2000s	10.0/s	Y	Y
17.		Sony RX100 IV	2359	n	3.0 / 1228	tilting	n	1/2000s	16.0/s	Y	Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The A5100 has a touchscreen, while the Rebel has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

The Rebel writes its imaging data to Compact Flash cards, while the A5100 uses SDXC or Memory Stick PRO Duo 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 Digital Rebel and Sony Alpha A5100 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 Rebel	Y	- / -	-	-	-	1.1	-	-	-
2.		Sony A5100	-	stereo / mono	-	-	micro	2.0	Y	Y	-
3.		Canon 10D	Y	- / -	-	-	-	1.1	-	-	-
4.		Canon 20D	Y	- / -	-	-	-	1.1	-	-	-
5.		Canon T1i	Y	mono / mono	-	-	mini	2.0	-	-	-
6.		Canon T3i	Y	mono / mono	Y	-	mini	2.0	-	-	-
7.		Canon T4i	Y	stereo / mono	Y	-	mini	2.0	-	-	-
8.		Canon T6s	Y	stereo / mono	Y	-	mini	2.0	Y	Y	-
9.		Canon T7i	Y	stereo / mono	Y	-	mini	2.0	Y	Y	Y
10.		Canon XT	Y	- / -	-	-	-	2.0	-	-	-
11.		Canon XTi	Y	- / -	-	-	-	2.0	-	-	-
12.		Nikon D70	Y	- / -	-	-	-	1.0	-	-	-
13.		Sony A5000	-	stereo / mono	-	-	micro	2.0	Y	Y	-
14.		Sony A6000	Y	stereo / mono	-	-	micro	2.0	Y	Y	-
15.		Sony NEX-3N	-	stereo / mono	-	-	micro	2.0	-	-	-
16.		Sony RX100	-	stereo / mono	-	-	micro	2.0	-	-	-
17.		Sony RX100 IV	-	stereo / mono	-	-	micro	2.0	Y	Y	-

It is notable that the Rebel has a hotshoe, while the A5100 does not. This socket makes it possible to easily attach optional accessories, such as an external flash gun.

Both the Rebel and the A5100 have been discontinued, but can regularly be found used on ebay. The Rebel was replaced by the Canon XT, while the A5100 does not have a direct successor. Further information on the features and operation of the Rebel and A5100 can be found, respectively, in the Canon Rebel Manual (free pdf) or the online Sony A5100 Manual.

Review summary

So what conclusions can be drawn? Which of the two cameras – the Canon Rebel or the Sony A5100 – has the upper hand? Is one clearly better than the other? A synthesis of the relative strong points of each of the models is listed below.

Arguments in favor of the Canon EOS Digital Rebel:

• Easier framing: Has an optical viewfinder for image composition and settings control.
• Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
• More heavily discounted: Has been available for much longer (launched in August 2003).

Reasons to prefer the Sony Alpha A5100:

• More detail: Has more megapixels (24 vs 6.3MP), which boosts linear resolution by 95%.
• Better image quality: Scores substantially higher (25 points) in the DXO overall evaluation.
• Richer colors: Generates noticeably more natural colors (2.8 bits more color depth).
• More dynamic range: Captures a broader range of light and dark details (1.9 EV of extra DR).
• Better low-light sensitivity: Can shoot in dim conditions (1.3 stops ISO advantage).
• Broader imaging potential: Can capture not only stills but also 1080/60p video.
• Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
• Larger screen: Has a bigger rear LCD (3.0" vs 1.8") for image review and settings control.
• More detailed LCD: Has a higher resolution rear screen (922k vs 118k dots).
• More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
• Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
• More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
• Faster burst: Shoots at higher frequency (6 vs 2.5 flaps/sec) to capture the decisive moment.
• More compact: Is smaller (110x63mm vs 142x99mm) and will fit more readily into a bag.
• Less heavy: Has a lower weight (by 366g or 56 percent) and is thus easier to take along.
• Easier travel charging: Can be conveniently charged via its USB port.
• More legacy lens friendly: Can use many non-native lenses via adapters.
• Faster data transfer: Supports a more advanced USB protocol (2.0 vs 1.1).
• 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 category (39 percent cheaper at launch).
• More modern: Reflects 11 years of technical progress since the Rebel launch.

If the number of relative strengths (bullet points above) is taken as a guide, the A5100 is the clear winner of the contest (22 : 3 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 Rebel and the Sony A5100 place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Mirrorless Interchangeable Lens Camera listings whether the two cameras rank among the cream of the crop.

In any case, while the comparison of technical specifications can provide a useful overview of the capabilities of different cameras, it says little about, for example, the shooting experience and imaging performance of the Rebel and the A5100 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 expert reviews 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 Rebel	..	..	..	+ +	..	..	Aug 2003	US$ 899	ebay.com
2.		Sony A5100	4.5/5	+	..	..	4.5/5	5/5	Aug 2014	US$ 549	ebay.com
3.		Canon 10D	..	..	..	+ +	..	..	Feb 2003	US$ 1 999	ebay.com
4.		Canon 20D	..	..	..	+ +	..	..	Aug 2004	US$ 1 499	ebay.com
5.		Canon T1i	..	+ +	..	74/100	4.5/5	4.5/5	Mar 2009	US$ 799	ebay.com
6.		Canon T3i	3/5	o	..	77/100	4.5/5	4.5/5	Feb 2011	US$ 599	ebay.com
7.		Canon T4i	4/5	+ +	..	77/100	4.5/5	4.5/5	Jun 2012	US$ 849	ebay.com
8.		Canon T6s	5/5	+	..	77/100	4.5/5	4.5/5	Feb 2015	US$ 649	ebay.com
9.		Canon T7i	4.5/5	..	3.5/5	80/100	4.5/5	4/5	Feb 2017	US$ 749	ebay.com
10.		Canon XT	..	80/100	..	+ +	o	..	Feb 2005	US$ 899	ebay.com
11.		Canon XTi	..	+ +	..	+ +	o	4/5	Aug 2006	US$ 799	ebay.com
12.		Nikon D70	..	..	..	+ +	..	..	Jan 2004	US$ 999	ebay.com
13.		Sony A5000	3/5	+	..	..	4.5/5	4.5/5	Jan 2014	US$ 449	ebay.com
14.		Sony A6000	5/5	+	4.5/5	80/100	4.5/5	5/5	Feb 2014	US$ 599	ebay.com
15.		Sony NEX-3N	3/5	..	..	..	4.5/5	4.5/5	Feb 2013	US$ 499	ebay.com
16.		Sony RX100	5/5	+ +	..	78/100	4/5	5/5	Jun 2012	US$ 649	ebay.com
17.		Sony RX100 IV	4.5/5	+ +	..	85/100	4/5	4.5/5	Jun 2015	US$ 999	ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The review scores listed above should be treated with care, 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

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