Canon T100 vs T7i
The Canon EOS Rebel T100 (called Canon 4000D in some regions) and the Canon EOS Rebel T7i (labelled Canon 800D in some countries) are two digital cameras that were announced, respectively, in February 2018 and February 2017. Both are DSLR (Digital Single Lens Reflex) cameras that are equipped with an APS-C sensor. The T100 has a resolution of 17.9 megapixels, whereas the T7i provides 24 MP.
As their names suggest, both the Canon EOS Rebel T100 and the Canon EOS Rebel T7i 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 T100 and Canon T7i. Below is an overview of the main specs of the two cameras as a starting point for the comparison.
Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS Rebel T100 and the Canon EOS Rebel T7i? 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.
An illustration of the physical size and weight of the Canon T100 and the Canon T7i 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 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 T100 and the Canon T7i are of equal size. However, the T7i is markedly heavier (22 percent) than the T100. In this context, it is worth noting that neither the T100 nor the T7i 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.
The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. If you would like to visualize and compare a different camera combination, you can navigate to the CAM-parator app and make your selection from a broad list of cameras there.
|Canon T100||129 mm||102 mm||77 mm||436 g||500||n||Feb 2018||399|
|Canon T7i||131 mm||100 mm||76 mm||532 g||600||n||Feb 2017||749|
|Canon T8i||131 mm||103 mm||76 mm||515 g||800||n||Feb 2020||749|
|Canon T7||129 mm||101 mm||78 mm||475 g||500||n||Feb 2018||449|
|Canon 77D||131 mm||100 mm||76 mm||540 g||600||n||Feb 2017||899|
|Canon SL2||122 mm||93 mm||70 mm||453 g||650||n||Jun 2017||549|
|Canon T6||129 mm||101 mm||78 mm||485 g||500||n||Mar 2016||449|
|Canon T6i||132 mm||101 mm||78 mm||555 g||440||n||Feb 2015||749|
|Canon T5||130 mm||100 mm||78 mm||480 g||500||n||Feb 2014||449|
|Canon SL1||117 mm||91 mm||69 mm||407 g||380||n||Mar 2013||549|
|Canon T5i||133 mm||100 mm||79 mm||580 g||440||n||Mar 2013||649|
|Canon T3||130 mm||100 mm||78 mm||495 g||700||n||Feb 2011||449|
|Canon T2i||129 mm||98 mm||62 mm||530 g||440||n||Feb 2010||699|
|Canon T1i||129 mm||98 mm||62 mm||520 g||400||n||Mar 2009||799|
|Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.|
Any camera decision will naturally be influenced heavily by the price. 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 T100 was launched at a markedly lower price (by 47 percent) than the T7i, 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.
The size of the sensor inside a digital camera is one of the key determinants of image quality. All other things equal, a large sensor will have larger individual pixel-units that offer better low-light sensitivity, wider dynamic range, and 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 tend to be more expensive and lead to bigger and heavier cameras 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.
Technology-wise, the T7i uses a more advanced image processing engine (DIGIC 7) than the T100 (DIGIC 4+), with benefits for noise reduction, color accuracy, and processing speed.
While the two cameras under review share the same sensor size, the T7i offers a higher resolution of 24 megapixels, compared with 17.9 MP of the T100. This megapixels advantage translates into a 16 percent gain in linear resolution. On the other hand, these sensor specs imply that the T7i has a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 3.72μm versus 4.31μm for the T100). Moreover, it should be noted, that the T100 is a somewhat more recent model (by 1 year) than the T7i, and its sensor might have benefitted from technological advances during this time that further enhance the light gathering capacity of individual 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 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 T100 are 25.9 x 17.3 inches or 65.8 x 43.9 cm for good quality, 20.7 x 13.8 inches or 52.7 x 35.1 cm for very good quality, and 17.3 x 11.5 inches or 43.9 x 29.3 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 T100 has a native sensitivity range from ISO 100 to ISO 6400, which can be extended to ISO 100-12800. The corresponding ISO settings for the Canon EOS Rebel T7i are ISO 100 to ISO 25600, with the possibility to increase the ISO range to 100-51200.
Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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 adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.
| DXO |
Many modern cameras are not only capable of taking still images, but can also record movies. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the T7i provides a faster frame rate than the T100. It can shoot movie footage at 1080/60p, while the T100 is limited to 1080/30p.
Beyond body and sensor, cameras can and do differ across a range of features. The T100 and the T7i 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 T7i has a higher magnification than the one of the T100 (0.51x vs 0.50x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The following table reports on some other key feature differences and similarities of the Canon T100, the Canon T7i, and comparable cameras.
One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The T7i has a touchscreen, while the T100 has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.The T7i has an articulated screen that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in taking selfies. In contrast, the T100 does not have a selfie-screen.
Concerning the storage of imaging data, both the T100 and the T7i write their files to SDXC cards. The T7i supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the T100 cannot take advantage of Ultra High Speed SD cards.
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 T100 and Canon EOS Rebel T7i and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
| NFC |
It is notable that the T7i has a microphone port, which can help to improve the quality of audio recordings by attaching an external microphone. The T100 does not feature such a mic input.
The T100 is a recent model that features in the current product line-up of Canon. In contrast, the T7i has been discontinued (but can be found pre-owned on eBay). As a replacement in the same line of cameras, the T7i was succeeded by the Canon T8i. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Canon website.
So how do things add up? Which of the two cameras – the Canon T100 or the Canon T7i – 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 T100:
- Less heavy: Is lighter (by 96g or 18 percent) and hence easier to carry around.
- More affordable: Was introduced into a lower priced category (47 percent cheaper at launch).
- More modern: Is somewhat more recent (announced 1 year after the T7i).
Reasons to prefer the Canon EOS Rebel T7i:
- More detail: Has more megapixels (24 vs 17.9MP), which boosts linear resolution by 16%.
- Better jpgs: Has a more modern image processing engine (DIGIC 7 vs DIGIC 4+).
- Better video: Provides higher movie framerates (1080/60p versus 1080/30p).
- Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
- Better sound: Can connect to an external microphone for higher quality sound recording.
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.51x vs 0.50x).
- Larger screen: Has a bigger rear LCD (3.0" vs 2.7") for image review and settings control.
- More detailed LCD: Has a higher resolution rear screen (1040k vs 230k dots).
- More flexible LCD: Has a swivel screen for odd-angle shots in portrait or 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 3 flaps/sec) to capture the decisive moment.
- Longer lasting: Gets more shots (600 versus 500) out of a single battery charge.
- 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 heavily discounted: Has been on the market for longer (launched in February 2017).
If the count of individual advantages (bullet points above) is taken as a guide, the T7i is the clear winner of the contest (16 : 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 T100 and the Canon T7i 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 specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the T100 or the T7i. 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.
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 (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.
|Canon T100||o||..||3.5/5||..||3.5/5||Feb 2018||399|
|Canon T7i||..||80/100||4.5/5||4/5||4/5||Feb 2017||749|
|Canon T8i||+||80/100||4/5||..||3.5/5||Feb 2020||749|
|Canon T7||o||..||3.5/5||..||3.5/5||Feb 2018||449|
|Canon 77D||..||82/100||4.5/5||4.5/5||4/5||Feb 2017||899|
|Canon SL2||+ +||78/100||4.5/5||4.5/5||4.5/5||Jun 2017||549|
|Canon T6||o||73/100||4/5||3.5/5||4/5||Mar 2016||449|
|Canon T6i||..||75/100||4.5/5||4.5/5||4.5/5||Feb 2015||749|
|Canon T5||+||..||4/5||4/5||4.5/5||Feb 2014||449|
|Canon SL1||+||78/100||4/5||4/5||4/5||Mar 2013||549|
|Canon T5i||..||76/100||4.5/5||4.5/5||4.5/5||Mar 2013||649|
|Canon T3||80/100||69/100||4/5||4/5||4.5/5||Feb 2011||449|
|Canon T2i||+ +||77/100||4/5||5/5||4.5/5||Feb 2010||699|
|Canon T1i||+ +||74/100||4.5/5||5/5||4.5/5||Mar 2009||799|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
The review scores listed above should be treated with care, though. The assessments were made in relation to similar cameras of the same technological generation. 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, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.
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.
Specifications: Canon T100 vs Canon T7i
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 Model||Canon T100||Canon T7i|
|Camera Type||Digital single lens reflex||Digital single lens reflex|
|Camera Lens||Canon EF mount lenses||Canon EF mount lenses|
|Launch Date||February 2018||February 2017|
|Launch Price||USD 399||USD 749|
|Sensor Specs||Canon T100||Canon T7i|
|Sensor Format||APS-C Sensor||APS-C Sensor|
|Sensor Size||22.3 x 14.9 mm||22.3 x 14.9 mm|
|Sensor Area||332.27 mm2||332.27 mm2|
|Sensor Diagonal||26.8 mm||26.8 mm|
|Sensor Resolution||17.9 Megapixels||24 Megapixels|
|Image Resolution||5184 x 3456 pixels||6000 x 4000 pixels|
|Pixel Pitch||4.31 μm||3.72 μm|
|Pixel Density||5.39 MP/cm2||7.22 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||1080/30p Video||1080/60p Video|
|ISO Setting||100 - 6,400 ISO||100 - 25,600 ISO|
|ISO Boost||100 - 12,800 ISO||100 - 51,200 ISO|
|Image Processor||DIGIC 4+||DIGIC 7|
|DXO Sensor Quality (score)||63||..|
|DXO Color Depth (bits)||21.9||..|
|DXO Dynamic Range (EV)||11.4||..|
|DXO Low Light (ISO)||695||..|
|Screen Specs||Canon T100||Canon T7i|
|Viewfinder Type||Optical viewfinder||Optical viewfinder|
|Viewfinder Field of View||95%||95%|
|LCD Framing||Live View||Live View|
|Rear LCD Size||2.7inch||3.0inch|
|LCD Resolution||230k dots||1040k dots|
|LCD Attachment||Fixed screen||Swivel screen|
|Touch Input||no Touchscreen||Touchscreen|
|Shooting Specs||Canon T100||Canon T7i|
|Focus System||Phase-detect AF||Phase-detect AF|
|Continuous Shooting||3 shutter flaps/s||6 shutter flaps/s|
|Shutter Life Expectancy||100 000 actuations||100 000 actuations|
|Fill Flash||Build-in Flash||Build-in Flash|
|Storage Medium||SDXC cards||SDXC cards|
|Second Storage Option||Single card slot||Single card slot|
|UHS card support||no||UHS-I|
|Connectivity Specs||Canon T100||Canon T7i|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||mini HDMI||mini HDMI|
|Microphone Port||no MIC socket||External MIC port|
|Wifi Support||Wifi built-in||Wifi built-in|
|Near-Field Communication||NFC built-in||NFC built-in|
|Bluetooth Support||no Bluetooth||Bluetooth built-in|
|Body Specs||Canon T100||Canon T7i|
|Battery Life (CIPA)||500 shots per charge||600 shots per charge|
129 x 102 x 77 mm
(5.1 x 4.0 x 3.0 in)
131 x 100 x 76 mm
(5.2 x 3.9 x 3.0 in)
|Camera Weight||436 g (15.4 oz)||532 g (18.8 oz)|
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