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Canon T7i vs XSi

The Canon EOS Rebel T7i (called Canon 800D in some regions) and the Canon EOS Rebel XSi (labelled Canon 450D in some countries) are two digital cameras that were officially introduced, respectively, in February 2017 and January 2008. Both are DSLR (Digital Single Lens Reflex) cameras that are equipped with an APS-C sensor. The T7i has a resolution of 24 megapixels, whereas the XSi provides 12.2 MP.

As their names suggest, both the Canon EOS Rebel T7i and the Canon EOS Rebel XSi belong to Canon's Rebel line of DSLR cameras. This range of APS-C cameras, which started out with the Canon EOS Digital Rebel in 2003, has been a big commercial success and the backbone of Canon's dominance in the digital camera market. The popularity of the Rebel cameras is the result of them inheriting much of the sensor and shooting technology from earlier released professional DSLRs, while being sold at a much more budget-friendly price point. The strong brand reputation of Canon and the comprehensive EOS system of compatible lenses and accessories further contributes to the appeal of the Rebel cams, including the Canon T7i and Canon XSi. Below is an overview of the main specs of the two cameras as a starting point for the comparison.

Headline Specifications
Canon T7i   Canon XSi
Canon T7i Canon XSi
Digital single lens reflex Digital single lens reflex
Canon EF mount lenses Canon EF mount lenses
24 MP, APS-C Sensor 12.2 MP, APS-C Sensor
1080/60p Video no Video
ISO 100-25600 (100-51200) ISO 100-1600
Optical viewfinder Optical viewfinder
3.0" LCD, 1040k dots 3.0" LCD, 230k dots
Swivel touchscreen Fixed screen (not touch-sensitive)
6 shutter flaps per second 3.5 shutter flaps per second
600 shots per battery charge500 shots per battery charge
131 x 100 x 76 mm, 532 g 129 x 98 x 62 mm, 524 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS Rebel T7i 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: Canon T7i vs XSi

The physical size and weight of the Canon T7i and the Canon XSi 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.

Size Canon T7i vs Canon XSi
Compare T7i versus XSi top
Comparison T7i or XSi rear

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 T7i. Moreover, the XSi is slightly lighter (2 percent) than the T7i. In this context, it is worth noting that neither the T7i 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 T7i gets 600 shots out of its LP-E17 battery, while the XSi can take 500 images on a single charge of its LP-E5 power pack.

The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. In case you want to display and compare another camera duo, just click on the right or left arrow next to the camera that you would like to inspect. Alternatively, you can also use the CAM-parator to select your camera combination among a larger number of options.

Camera Body Specifications
  Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
(CIPA)
Weather
Sealing
(yes/no)
Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
 
Canon T7i» 131 mm 100 mm 76 mm 532 g 600 n Feb 2017 749 i i Canon T7i
 
Canon XSi« 129 mm 98 mm 62 mm 524 g 500 n Jan 2008 799- i Canon XSi
 
Canon T7« » 129 mm 101 mm 78 mm 475 g 500 n Feb 2018 449 i i Canon T7
 
Canon 77D« » 131 mm 100 mm 76 mm 540 g 600 n Feb 2017 899 i i Canon 77D
 
Canon SL2« » 122 mm 93 mm 70 mm 453 g 650 n Jun 2017 549- i Canon SL2
 
Canon T6i« » 132 mm 101 mm 78 mm 555 g 440 n Feb 2015 749- i Canon T6i
 
Canon T6s« » 132 mm 101 mm 78 mm 565 g 440 n Feb 2015 649- i Canon T6s
 
Canon T5i« » 133 mm 100 mm 79 mm 580 g 440 n Mar 2013 649- i Canon T5i
 
Canon T4i« » 133 mm 100 mm 79 mm 575 g 440 n Jun 2012 849- i Canon T4i
 
Canon T3« » 130 mm 100 mm 78 mm 495 g 700 n Feb 2011 449- i Canon T3
 
Canon T2i« » 129 mm 98 mm 62 mm 530 g 440 n Feb 2010 699- i Canon T2i
 
Canon T1i« » 129 mm 98 mm 62 mm 520 g 400 n Mar 2009 799- i Canon T1i
 
Canon 40D« » 146 mm 108 mm 74 mm 822 g 750 n Aug 2007 1,299- i Canon 40D
 
Canon XTi« » 127 mm 84 mm 65 mm 556 g 370 n Aug 2006 799- i Canon XTi
Note: Measurements and pricing do not include easily detachable parts, such as interchangeable lenses or optional viewfinders.

The price is, of course, an important factor in any camera decision. 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 T7i was somewhat cheaper (by 6 percent) than the XSi at launch, but both cameras fall into the same price category. 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: Canon T7i vs XSi

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. Moreover, a large sensor camera will give the photographer more control over depth-of-field in the image and, thus, the ability to better isolate a subject from the 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 XSi is 1 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.

In terms of chip-set technology, the T7i uses a more advanced image processing engine (DIGIC 7) than the XSi (DIGIC 3), with benefits for noise reduction, color accuracy, and processing speed.

Canon T7i and Canon XSi sensor measures

With 24MP, the T7i offers a higher resolution than the XSi (12.2MP), but the T7i has smaller individual pixels (pixel pitch of 3.72μm versus 5.19μm for the XSi). However, the T7i is a much more recent model (by 9 years) than the XSi, 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 T7i implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the T7i for good quality output (200 dots per inch) amounts to 30 x 20 inch or 76.2 x 50.8 cm, for very good quality (250 dpi) 24 x 16 inch or 61 x 40.6 cm, and for excellent quality (300 dpi) 20 x 13.3 inch or 50.8 x 33.9 cm. The corresponding values for the Canon XSi are 21.4 x 14.2 inch or 54.3 x 36.2 cm for good quality, 17.1 x 11.4 inch or 43.4 x 28.9 cm for very good quality, and 14.2 x 9.5 inch or 36.2 x 24.1 cm for excellent quality prints.

The T7i has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Canon EOS Rebel T7i has a native sensitivity range from ISO 100 to ISO 25600, which can be extended to ISO 100-51200. The corresponding ISO settings for the Canon EOS Rebel XSi are ISO 100 to ISO 1600 (no boost).

T7i versus XSi MP

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. 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
Camera
Model
 
Canon T7i» APS-C 24.0 6000 40001080/60p----Canon T7i
 
Canon XSi« APS-C 12.2 4272 2848-21.910.869261Canon XSi
 
Canon T7« » APS-C 24.0 6000 40001080/30p----Canon T7
 
Canon 77D« » APS-C 24.0 6000 40001080/60p23.613.397178Canon 77D
 
Canon SL2« » APS-C 24.0 6000 40001080/60p23.613.4104179Canon SL2
 
Canon T6i« » APS-C 24.0 6000 40001080/60p22.712.091971Canon T6i
 
Canon T6s« » APS-C 24.0 6000 40001080/30p22.612.091570Canon T6s
 
Canon T5i« » APS-C 17.9 5184 34561080/30p21.711.268161Canon T5i
 
Canon T4i« » APS-C 17.9 5184 34561080/30p21.711.272262Canon T4i
 
Canon T3« » APS-C 12.2 4272 2848720/30p21.911.075562Canon T3
 
Canon T2i« » APS-C 17.9 5184 34561080/30p22.111.578466Canon T2i
 
Canon T1i« » APS-C 15.1 4752 31681080/20p21.711.566363Canon T1i
 
Canon 40D« » APS-C 10.1 3888 2592-22.111.370364Canon 40D
 
Canon XTi« » APS-C 10.1 3888 2592-22.111.066462Canon XTi

Many modern cameras are not only capable of taking still images, but also of capturing video footage. The T7i indeed provides movie recording capabilities, while the XSi does not. The highest resolution format that the T7i can use is 1080/60p.

 

Feature comparison: Canon T7i vs XSi

Apart from body and sensor, cameras can and do differ across a variety of features. The T7i 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 T7i (0.54x vs 0.51x), 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 T7i 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
Size
(inch)
LCD
Resolution
('000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Mech
Shutter
Speed
Shutter
Flaps
(1/sec)
Built-in
Flash
(yes/no)
Built-in
Image
Stab
Camera
Model
 
Canon T7i»optical n 3.0 1040 swivel Y 1/4000s 6.0 Y n Canon T7i
 
Canon XSi«optical n 3.0 230 fixed n 1/4000s 3.5 Y n Canon XSi
 
Canon T7« »optical n 3.0 920 fixed n 1/4000s 3.0 Y n Canon T7
 
Canon 77D« »optical Y 3.0 1040 swivel Y 1/4000s 6.0 Y n Canon 77D
 
Canon SL2« »optical n 3.0 1040 swivel Y 1/4000s 5.0 Y n Canon SL2
 
Canon T6i« »optical n 3.0 1040 swivel Y 1/4000s 5.0 Y n Canon T6i
 
Canon T6s« »optical Y 3.0 1040 swivel Y 1/4000s 5.0 Y n Canon T6s
 
Canon T5i« »optical n 3.0 1040 swivel Y 1/4000s 5.0 Y n Canon T5i
 
Canon T4i« »optical n 3.0 1040 swivel Y 1/4000s 5.0 Y n Canon T4i
 
Canon T3« »optical n 2.7 230 fixed n 1/4000s 3.0 Y n Canon T3
 
Canon T2i« »optical n 3.0 1040 fixed n 1/4000s 3.7 Y n Canon T2i
 
Canon T1i« »optical n 3.0 920 fixed n 1/4000s 3.4 Y n Canon T1i
 
Canon 40D« »optical Y 3.0 230 fixed n 1/8000s 6.5 Y n Canon 40D
 
Canon XTi« »optical n 2.5 230 fixed n 1/4000s 3.0 Y n Canon XTi

One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The T7i has a touchscreen, while the XSi has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

The T7i has an articulated LCD that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in snapping selfies. In contrast, the XSi does not have a selfie-screen.

The T7i writes its imaging data to SDXC cards, while the XSi uses SDHC cards. The T7i supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the XSi cannot take advantage of Ultra High Speed SD cards.

 

Connectivity comparison: Canon T7i vs XSi

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 T7i 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
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Type
WiFi
Support
NFC
Support
Bluetooth
Support
Camera
Model
 
Canon T7i»YstereomonoY-mini2.0YYYCanon T7i
 
Canon XSi«Y----mini2.0---Canon XSi
 
Canon T7« »Ymonomono--mini2.0YY-Canon T7
 
Canon 77D« »YstereomonoY-mini2.0YYYCanon 77D
 
Canon SL2« »YstereomonoY-mini2.0YYYCanon SL2
 
Canon T6i« »YstereomonoY-mini2.0YY-Canon T6i
 
Canon T6s« »YstereomonoY-mini2.0YY-Canon T6s
 
Canon T5i« »YstereomonoY-mini2.0---Canon T5i
 
Canon T4i« »YstereomonoY-mini2.0---Canon T4i
 
Canon T3« »Ystereomono--mini2.0---Canon T3
 
Canon T2i« »Ystereo-Y-mini2.0---Canon T2i
 
Canon T1i« »Ymonomono--mini2.0---Canon T1i
 
Canon 40D« »Y-----2.0---Canon 40D
 
Canon XTi« »Y-----2.0---Canon XTi

It is notable that the T7i offers wifi support, while the XSi does not. Wifi can be a very convenient means to transfer image data to an off-camera location.

The T7i is a recent model that features in the current product line-up of Canon. In contrast, the XSi has been discontinued (but it can be found pre-owned on eBay). As a replacement in the same line of cameras, the XSi was succeeded by the Canon T1i. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Canon website.


Review summary: Canon T7i vs XSi

So what is the bottom line? Which of the two cameras – the Canon T7i or the Canon XSi – 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 Rebel T7i:

  • More detail: Offers more megapixels (24 vs 12.2MP) with a 40% higher linear resolution.
  • Better jpgs: Has a more modern image processing engine (DIGIC 7 vs DIGIC 3).
  • 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 detailed LCD: Has a higher resolution rear screen (1040k vs 230k dots).
  • More flexible LCD: Has swivel screen for odd-angle shots in portrait or landscape orientation.
  • Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • Faster burst: Shoots at higher frequency (6 vs 3.5 flaps/sec) to capture the decisive moment.
  • Longer lasting: Can take more shots (600 versus 500) on a single battery charge.
  • 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.
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
  • More modern: Reflects 9 years of technical progress since the XSi launch.


Advantages of the Canon EOS Rebel XSi:

  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.54x vs 0.51x).
  • More heavily discounted: Has been around for much longer (launched in January 2008).

If the count of relative strengths (bullet points above) is taken as a measure, the T7i is the clear winner of the match-up (15 : 2 points). However, the pertinence of the various camera strengths will differ across photographers, so that you might want to weigh individual camera traits according to their importance for your own imaging needs before making a camera decision. 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.

T7i 15:02 XSi

How about other alternatives? Do the specifications of the Canon T7i 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 T7i and the XSi in practical situations. 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: Canon T7i vs XSi

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 (cameralabs, dpreview, ephotozine, imaging-resource, and photographyblog). 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.

Review Scores
  Camera
Model
cameralabs dpreview ephotozine imaging-resource photographyblog Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
 
Canon T7i»-80/1004.5/54/54/5 Feb 2017 749 i i Canon T7i
 
Canon XSi«+ ++ +4/55/54.5/5 Jan 2008 799- i Canon XSi
 
Canon T7« »o-3.5/5-3.5/5 Feb 2018 449 i i Canon T7
 
Canon 77D« »-82/1004.5/54.5/54/5 Feb 2017 899 i i Canon 77D
 
Canon SL2« »+ +78/1004.5/54.5/54.5/5 Jun 2017 549- i Canon SL2
 
Canon T6i« »-75/1004.5/54.5/54.5/5 Feb 2015 749- i Canon T6i
 
Canon T6s« »+77/1004.5/54.5/54.5/5 Feb 2015 649- i Canon T6s
 
Canon T5i« »-76/1004.5/54.5/54.5/5 Mar 2013 649- i Canon T5i
 
Canon T4i« »+ +77/1004.5/54.5/54.5/5 Jun 2012 849- i Canon T4i
 
Canon T3« »80/10069/1004/54/54.5/5 Feb 2011 449- i Canon T3
 
Canon T2i« »+ +77/1004/55/54.5/5 Feb 2010 699- i Canon T2i
 
Canon T1i« »+ +74/1004.5/55/54.5/5 Mar 2009 799- i Canon T1i
 
Canon 40D« »+ ++ +4.5/5o4.5/5 Aug 2007 1,299- i Canon 40D
 
Canon XTi« »+ ++ +o4.5/54/5 Aug 2006 799- i Canon XTi
Notes: (+ +) 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. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and comparisons of ratings among very different cameras or across long time periods have little meaning. Also, please note that some of the review sites have changed their methodology and reporting over time.

Canon T7i:
Check Amazon price
Canon XSi:
Check Ebay offers

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 your choice using the following search menu. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.

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    Specifications: Canon T7i vs Canon XSi

    Below is a side-by-side comparison of the specs of the two cameras to facilitate a quick review of their differences and common features.

    Camera Specifications
    Camera Model Canon T7i Canon XSi
    Camera Type Digital single lens reflex Digital single lens reflex
    Camera Lens Canon EF mount lenses Canon EF mount lenses
    Launch Date February 2017 January 2008
    Launch Price USD 749 USD 799
    Sensor Specs Canon T7i Canon XSi
    Sensor Technology CMOS CMOS
    Sensor Format APS-C Sensor APS-C Sensor
    Sensor Size 22.3 x 14.9 mm 22.2 x 14.8 mm
    Sensor Area 332.27 mm2 328.56 mm2
    Sensor Diagonal 26.8 mm 26.7 mm
    Crop Factor 1.6x 1.6x
    Sensor Resolution 24 Megapixels 12.2 Megapixels
    Image Resolution 6000 x 4000 pixels 4272 x 2848 pixels
    Pixel Pitch 3.72 μm 5.19 μm
    Pixel Density 7.22 MP/cm2 3.70 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability 1080/60p Video no Video
    ISO Setting 100-25600 ISO 100-1600 ISO
    ISO Boost 100-51200 ISO no Enhancement
    Image Processor DIGIC 7 DIGIC 3
    DXO Sensor Quality (score) .. 61
    DXO Color Depth (bits) .. 21.9
    DXO Dynamic Range (EV) .. 10.8
    DXO Low Light (ISO) .. 692
    Screen Specs Canon T7i Canon XSi
    Viewfinder Type Optical viewfinder Optical viewfinder
    Viewfinder Field of View 95% 95%
    Viewfinder Magnification 0.51x 0.54x
    LCD Framing Live View Live View
    Rear LCD Size 3.0 inch 3.0 inch
    LCD Resolution 1040k dots 230k dots
    LCD Attachment Swivel screen Fixed screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Canon T7i Canon XSi
    Autofocus System Phase-detect AF Phase-detect AF
    Continuous Shooting 6 shutter flaps/s 3.5 shutter flaps/s
    Shutter Life Expectancy100 000 actuations100 000 actuations
    Fill Flash Build-in Flash Build-in Flash
    Storage Medium SDXC cards SDHC cards
    Second Storage Option Single card slot Single card slot
    UHS card support UHS-I no
    Connectivity Specs Canon T7i Canon XSi
    External Flash Hotshoe Hotshoe
    USB Connector USB 2.0 USB 2.0
    HDMI Port mini HDMI mini HDMI
    Microphone Port External MIC port no MIC socket
    Wifi Support Wifi built-in no Wifi
    Near-Field Communication NFC built-in no NFC
    Bluetooth Support Bluetooth built-in no Bluetooth
    Body Specs Canon T7i Canon XSi
    Battery Type LP-E17 power pack LP-E5 power pack
    Battery Life (CIPA)600 shots per charge500 shots per charge
    Body Dimensions 131 x 100 x 76 mm
    (5.2 x 3.9 x 3.0 in)
    129 x 98 x 62 mm
    (5.1 x 3.9 x 2.4 in)
    Camera Weight 532 g (18.8 oz) 524 g (18.5 oz)

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