Canon 7D II vs XTi

The Canon EOS 7D Mark II and the Canon EOS Rebel XTi (labelled Canon 400D in some countries) are two digital cameras that were revealed to the public, respectively, in September 2014 and August 2006. Both are DSLR (Digital Single Lens Reflex) cameras that are equipped with an APS-C sensor. The 7D Mark II has a resolution of 20 megapixels, whereas the XTi provides 10.1 MP.

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

Headline Specifications

Canon 7D II		Canon XTi
Digital single lens reflex		Digital single lens reflex
Canon EF mount lenses		Canon EF mount lenses
20 MP – APS-C sensor		10.1 MP – APS-C sensor
1080/60p Video		no Video
ISO 100-16,000 (100 - 51,200)		ISO 100-1,600
Optical viewfinder		Optical viewfinder
3.0" LCD – 1040k dots		2.5" LCD – 230k dots
Fixed screen (not touch-sensitive)		Fixed screen (not touch-sensitive)
10 shutter flaps per second		3 shutter flaps per second
Weathersealed body		not weather sealed
670 shots per battery charge		370 shots per battery charge
149 x 112 x 78 mm, 910 g		127 x 84 x 65 mm, 556 g

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Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS 7D Mark II and the Canon EOS Rebel XTi? 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 7D II and the Canon XTi are illustrated 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 Canon XTi is considerably smaller (36 percent) than the Canon 7D II. Moreover, the XTi is substantially lighter (39 percent) than the 7D Mark II. It is worth mentioning in this context that the 7D Mark II is splash and dust resistant, while the XTi 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. 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 7D Mark II gets 670 shots out of its Canon LP-E6N battery, while the XTi can take 370 images on a single charge of its Canon NB-2LH power pack.

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 7D II	149 mm	112 mm	78 mm	910 g	670	Y	Sep 2014	US$ 1 799	ebay.com
2.		Canon XTi	127 mm	84 mm	65 mm	556 g	370	n	Aug 2006	US$ 799	ebay.com
3.		Canon 6D	145 mm	111 mm	71 mm	770 g	1090	Y	Sep 2012	US$ 2 099	ebay.com
4.		Canon 7D	148 mm	111 mm	74 mm	860 g	800	Y	Sep 2009	US$ 1 699	ebay.com
5.		Canon 20D	144 mm	106 mm	72 mm	770 g	700	n	Aug 2004	US$ 1 499	ebay.com
6.		Canon 40D	146 mm	108 mm	74 mm	822 g	750	n	Aug 2007	US$ 1 299	ebay.com
7.		Canon 50D	146 mm	108 mm	74 mm	822 g	800	Y	Aug 2008	US$ 1 299	ebay.com
8.		Canon 60D	145 mm	106 mm	79 mm	755 g	1100	Y	Aug 2010	US$ 1 399	ebay.com
9.		Canon 70D	139 mm	104 mm	79 mm	755 g	920	Y	Jul 2013	US$ 1 199	ebay.com
10.		Canon SL1	117 mm	91 mm	69 mm	407 g	380	n	Mar 2013	US$ 549	ebay.com
11.		Canon T3	130 mm	100 mm	78 mm	495 g	700	n	Feb 2011	US$ 449	ebay.com
12.		Canon T4i	133 mm	100 mm	79 mm	575 g	440	n	Jun 2012	US$ 849	ebay.com
13.		Canon T5	130 mm	100 mm	78 mm	480 g	500	n	Feb 2014	US$ 449	ebay.com
14.		Canon T5i	133 mm	100 mm	79 mm	580 g	440	n	Mar 2013	US$ 649	ebay.com
15.		Canon T6i	132 mm	101 mm	78 mm	555 g	440	n	Feb 2015	US$ 749	ebay.com
16.		Canon XS	126 mm	98 mm	65 mm	502 g	500	n	Jun 2008	US$ 449	ebay.com
17.		Canon XT	127 mm	94 mm	64 mm	540 g	400	n	Feb 2005	US$ 899	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 naturally be influenced heavily by the price. The manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The XTi was launched at a markedly lower price (by 56 percent) than the 7D Mark II, 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 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. 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.

Both cameras under consideration feature an APS-C sensor, but their sensors differ slightly in size. The sensor area in the XTi is 2 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.

With 20MP, the 7D Mark II offers a higher resolution than the XTi (10.1MP), but the 7D Mark II has smaller individual pixels (pixel pitch of 4.10μm versus 5.71μm for the XTi). However, the 7D Mark II is a much more recent model (by 8 years) than the XTi, 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 7D II implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the 7D Mark II for good quality output (200 dots per inch) amounts to 27.4 x 18.2 inches or 69.5 x 46.3 cm, for very good quality (250 dpi) 21.9 x 14.6 inches or 55.6 x 37.1 cm, and for excellent quality (300 dpi) 18.2 x 12.2 inches or 46.3 x 30.9 cm. The corresponding values for the Canon XTi are 19.4 x 13 inches or 49.4 x 32.9 cm for good quality, 15.6 x 10.4 inches or 39.5 x 26.3 cm for very good quality, and 13 x 8.6 inches or 32.9 x 21.9 cm for excellent quality prints.

The 7D Mark II has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Canon EOS 7D Mark II has a native sensitivity range from ISO 100 to ISO 16000, which can be extended to ISO 100-51200. The corresponding ISO settings for the Canon EOS Rebel XTi 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.

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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 review, the 7D Mark II has a notably higher overall DXO score than the XTi (overall score 8 points higher), which gives it an advantage in terms of imaging quality. This advantage is based on 0.3 bits higher color depth, 0.8 EV in additional dynamic range, and 0.7 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 7D II	APS-C	20.0	5472	3648	1080/60p	22.4	11.8	1082	70
2.		Canon XTi	APS-C	10.1	3888	2592	none	22.1	11.0	664	62
3.		Canon 6D	Full Frame	20.0	5472	3648	1080/30p	23.8	12.1	2340	82
4.		Canon 7D	APS-C	17.9	5184	3456	1080/30p	22.0	11.7	854	66
5.		Canon 20D	APS-C	8.2	3504	2336	none	21.9	11.0	721	62
6.		Canon 40D	APS-C	10.1	3888	2592	none	22.1	11.3	703	64
7.		Canon 50D	APS-C	15.1	4752	3168	none	21.8	11.4	696	63
8.		Canon 60D	APS-C	17.9	5184	3456	1080/30p	22.2	11.5	813	66
9.		Canon 70D	APS-C	20.0	5472	3648	1080/30p	22.5	11.6	926	68
10.		Canon SL1	APS-C	17.9	5184	3456	1080/30p	21.8	11.3	843	63
11.		Canon T3	APS-C	12.2	4272	2848	720/30p	21.9	11.0	755	62
12.		Canon T4i	APS-C	17.9	5184	3456	1080/30p	21.7	11.2	722	62
13.		Canon T5	APS-C	17.9	5184	3456	1080/30p	21.9	11.3	724	63
14.		Canon T5i	APS-C	17.9	5184	3456	1080/30p	21.7	11.2	681	61
15.		Canon T6i	APS-C	24.0	6000	4000	1080/30p	22.7	12.0	919	71
16.		Canon XS	APS-C	10.1	3888	2592	none	22.0	10.9	719	62
17.		Canon XT	APS-C	8.0	3456	2304	none	21.8	10.8	637	60

Many modern cameras are not only capable of taking still images, but also of capturing video footage. The 7D Mark II indeed provides movie recording capabilities, while the XTi does not. The highest resolution format that the 7D Mark II can use is 1080/60p.

Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. The 7D Mark II and the XTi 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 7D Mark II offers a wider field of view (100%) than the one in the XTi (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the 7D Mark II has a higher magnification (0.63x vs 0.49x), 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 7D II and Canon XTi 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 7D II	optical	Y	3.0 / 1040	fixed	n	1/8000s	10.0/s	Y	n
2.		Canon XTi	optical	n	2.5 / 230	fixed	n	1/4000s	3.0/s	Y	n
3.		Canon 6D	optical	Y	3.0 / 1040	fixed	n	1/4000s	4.5/s	n	n
4.		Canon 7D	optical	Y	3.0 / 920	fixed	n	1/8000s	8.0/s	Y	n
5.		Canon 20D	optical	Y	1.8 / 118	fixed	n	1/8000s	5.0/s	Y	n
6.		Canon 40D	optical	Y	3.0 / 230	fixed	n	1/8000s	6.5/s	Y	n
7.		Canon 50D	optical	Y	3.0 / 920	fixed	n	1/8000s	6.3/s	Y	n
8.		Canon 60D	optical	Y	3.0 / 1040	swivel	n	1/8000s	5.3/s	Y	n
9.		Canon 70D	optical	Y	3.0 / 1040	swivel	Y	1/8000s	7.0/s	Y	n
10.		Canon SL1	optical	n	3.0 / 1040	fixed	Y	1/4000s	4.9/s	Y	n
11.		Canon T3	optical	n	2.7 / 230	fixed	n	1/4000s	3.0/s	Y	n
12.		Canon T4i	optical	n	3.0 / 1040	swivel	Y	1/4000s	5.0/s	Y	n
13.		Canon T5	optical	n	3.0 / 460	fixed	n	1/4000s	3.0/s	Y	n
14.		Canon T5i	optical	n	3.0 / 1040	swivel	Y	1/4000s	5.0/s	Y	n
15.		Canon T6i	optical	n	3.0 / 1040	swivel	Y	1/4000s	5.0/s	Y	n
16.		Canon XS	optical	n	2.5 / 230	fixed	n	1/4000s	3.0/s	Y	n
17.		Canon XT	optical	n	1.8 / 115	fixed	n	1/4000s	3.0/s	Y	n
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One feature that is present on the 7D Mark II, but is missing on the XTi is a top-level LCD. While being, of course, smaller than the rear screen, the control panel conveys some of the essential shooting information and can be convenient for quick and easy settings verification.

The Canon 7D II has an intervalometer built-in. This enables the photographer to capture time lapse sequences, such as flower blooming, a sunset or moon rise, without purchasing an external camera trigger and related software.

The 7D Mark II writes its imaging data to Compact Flash or SDXC cards, while the XTi uses Compact Flash cards. The 7D Mark II features dual card slots, which can be very useful in case a memory card fails. In contrast, the XTi 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 7D Mark II and Canon EOS Rebel XTi 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 7D II	Y	stereo / mono	Y	Y	mini	3.0	-	-	-
2.		Canon XTi	Y	- / -	-	-	-	2.0	-	-	-
3.		Canon 6D	Y	mono / mono	Y	-	mini	2.0	Y	-	-
4.		Canon 7D	Y	mono / -	Y	-	mini	2.0	-	-	-
5.		Canon 20D	Y	- / -	-	-	-	1.1	-	-	-
6.		Canon 40D	Y	- / -	-	-	-	2.0	-	-	-
7.		Canon 50D	Y	- / -	-	-	mini	2.0	-	-	-
8.		Canon 60D	Y	mono / mono	Y	-	mini	2.0	-	-	-
9.		Canon 70D	Y	stereo / mono	Y	-	mini	2.0	Y	-	-
10.		Canon SL1	Y	mono / mono	Y	-	mini	2.0	-	-	-
11.		Canon T3	Y	stereo / mono	-	-	mini	2.0	-	-	-
12.		Canon T4i	Y	stereo / mono	Y	-	mini	2.0	-	-	-
13.		Canon T5	Y	mono / mono	-	-	mini	2.0	-	-	-
14.		Canon T5i	Y	stereo / mono	Y	-	mini	2.0	-	-	-
15.		Canon T6i	Y	stereo / mono	Y	-	mini	2.0	Y	Y	-
16.		Canon XS	Y	- / -	-	-	-	2.0	-	-	-
17.		Canon XT	Y	- / -	-	-	-	2.0	-	-	-

Studio photographers will appreciate that the Canon 7D II (unlike the XTi) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Travel and landscape photographers will find it useful that the 7D Mark II has an internal geolocalization sensor and can record GPS coordinates in its EXIF data.

Both the 7D Mark II and the XTi have been discontinued, but can regularly be found used on ebay. The XTi was replaced by the Canon Xsi, while the 7D Mark II does not have a direct successor. Further information on the features and operation of the 7D Mark II and XTi can be found, respectively, in the Canon 7D II Manual (free pdf) or the online Canon XTi Manual.

Review summary

So how do things add up? Is there a clear favorite between the Canon 7D II and the Canon XTi? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.

Advantages of the Canon EOS 7D Mark II:

• More detail: Offers more megapixels (20 vs 10.1MP) with a 41% higher linear resolution.
• Better image quality: Scores markedly higher (8 points) in the DXO overall assessment.
• More dynamic range: Captures a larger spectrum of light and dark details (0.8 EV of extra DR).
• Better low-light sensitivity: Requires less light for good images (0.7 stops ISO advantage).
• Broader imaging potential: Can record not only still images but also 1080/60p movies.
• Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
• 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 (0.63x vs 0.49x).
• Easier setting verification: Features an LCD display on top to control shooting parameters.
• Larger screen: Has a bigger rear LCD (3.0" vs 2.5") for image review and settings control.
• More detailed LCD: Has a higher resolution rear screen (1040k vs 230k dots).
• Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
• Faster burst: Shoots at higher frequency (10 vs 3 flaps/sec) to capture the decisive moment.
• Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
• Longer lasting: Can take more shots (670 versus 370) on a single battery charge.
• Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
• Easier geotagging: Features an internal GPS sensor to log localization data.
• Faster data transfer: Supports a more advanced USB protocol (3.0 vs 2.0).
• 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 modern: Reflects 8 years of technical progress since the XTi launch.

Reasons to prefer the Canon EOS Rebel XTi:

• More compact: Is smaller (127x84mm vs 149x112mm) and will fit more readily into a bag.
• Less heavy: Has a lower weight (by 354g or 39 percent) and is thus easier to take along.
• More affordable: Was introduced into a lower priced category (56 percent cheaper at launch).
• More heavily discounted: Has been around for much longer (launched in August 2006).

If the count of relative strengths (bullet points above) is taken as a measure, the 7D Mark II is the clear winner of the match-up (21 : 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 7D II and the Canon XTi 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 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 7D Mark II and the XTi in practical situations. User reviews that are available, for instance, at amazon can sometimes shed light on these issues, but such feedback is all too often partial, inconsistent, and inaccurate.

Expert reviews

This is where reviews by experts come in. 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	Street Price
1.		Canon 7D II	4.5/5	+	3.5/5	84/100	4/5	4.5/5	Sep 2014	US$ 1 799	ebay.com
2.		Canon XTi	..	+ +	..	+ +	o	4/5	Aug 2006	US$ 799	ebay.com
3.		Canon 6D	5/5	+ +	..	83/100	4.5/5	4.5/5	Sep 2012	US$ 2 099	ebay.com
4.		Canon 7D	5/5	+ +	..	84/100	4.5/5	4.5/5	Sep 2009	US$ 1 699	ebay.com
5.		Canon 20D	..	..	..	+ +	..	..	Aug 2004	US$ 1 499	ebay.com
6.		Canon 40D	..	+ +	..	+ +	4.5/5	4.5/5	Aug 2007	US$ 1 299	ebay.com
7.		Canon 50D	..	+ +	..	+ +	4.5/5	4.5/5	Aug 2008	US$ 1 299	ebay.com
8.		Canon 60D	5/5	+	..	79/100	4/5	4.5/5	Aug 2010	US$ 1 399	ebay.com
9.		Canon 70D	5/5	+ +	..	83/100	4.5/5	5/5	Jul 2013	US$ 1 199	ebay.com
10.		Canon SL1	4/5	+	..	78/100	4/5	4/5	Mar 2013	US$ 549	ebay.com
11.		Canon T3	..	80/100	..	69/100	4/5	4.5/5	Feb 2011	US$ 449	ebay.com
12.		Canon T4i	4/5	+ +	..	77/100	4.5/5	4.5/5	Jun 2012	US$ 849	ebay.com
13.		Canon T5	3/5	+	..	..	4/5	4.5/5	Feb 2014	US$ 449	ebay.com
14.		Canon T5i	..	..	..	76/100	4.5/5	4.5/5	Mar 2013	US$ 649	ebay.com
15.		Canon T6i	5/5	..	..	75/100	4.5/5	4.5/5	Feb 2015	US$ 749	ebay.com
16.		Canon XS	..	82/100	..	+ +	3.5/5	4.5/5	Jun 2008	US$ 449	ebay.com
17.		Canon XT	..	80/100	..	+ +	o	..	Feb 2005	US$ 899	ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The above review scores should be interpreted with care, 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 comparisons of ratings among very different cameras or across long time periods 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 would like to check on the differences and similarities of other camera models, just make your choice using the following search menu. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.

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