Canon T6i vs Leica S3
The Canon EOS Rebel T6i (called Canon 750D in some regions) and the Leica S3 are two digital cameras that were officially introduced, respectively, in February 2015 and September 2018. Both are DSLR (Digital Single Lens Reflex) cameras that are based on an APS-C (T6i) and a medium format (S3) sensor. The Canon has a resolution of 24 megapixels, whereas the Leica provides 64 MP.
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 T6i and the Leica S3? 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 T6i and the Leica S3 is provided 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 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 Leica S3 is considerably larger (44 percent) than the Canon T6i. Moreover, the S3 is substantially heavier (127 percent) than the T6i. It is noteworthy in this context that the S3 is splash and dust-proof, while the T6i 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. Hence, you might want to study and compare the specifications of available lenses in order to get the full picture of the size and weight of the two camera systems.
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.
|1.||Canon T6i||132 mm||101 mm||78 mm||555 g||440||n||Feb 2015||749|
|2.||Leica S3||160 mm||120 mm||80 mm||1260 g||..||Y||Sep 2018||18,995|
|3.||Canon 77D||131 mm||100 mm||76 mm||540 g||600||n||Feb 2017||899|
|4.||Canon T7i||131 mm||100 mm||76 mm||532 g||600||n||Feb 2017||749|
|5.||Canon T6s||132 mm||101 mm||78 mm||565 g||440||n||Feb 2015||649|
|6.||Canon T5||130 mm||100 mm||78 mm||480 g||500||n||Feb 2014||449|
|7.||Canon T5i||133 mm||100 mm||79 mm||580 g||440||n||Mar 2013||649|
|8.||Canon T4i||133 mm||100 mm||79 mm||575 g||440||n||Jun 2012||849|
|9.||Canon T1i||129 mm||98 mm||62 mm||520 g||400||n||Mar 2009||799|
|10.||Canon XSi||129 mm||98 mm||62 mm||524 g||500||n||Jan 2008||799|
|11.||Canon XTi||127 mm||84 mm||65 mm||556 g||370||n||Aug 2006||799|
|12.||Canon XT||127 mm||94 mm||64 mm||540 g||400||n||Feb 2005||899|
|13.||Leica M10||139 mm||80 mm||39 mm||660 g||210||Y||Jan 2017||6,595|
|14.||Leica S-E Typ 006||160 mm||120 mm||80 mm||1260 g||..||Y||Sep 2014||16,900|
|15.||Leica S Typ 007||160 mm||120 mm||80 mm||1260 g||..||Y||Sep 2014||24,490|
|16.||Leica S Typ 006||160 mm||120 mm||80 mm||1260 g||..||Y||Sep 2012||21,950|
|17.||Leica S2||160 mm||120 mm||80 mm||1410 g||..||Y||Sep 2008||22,995|
|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 T6i was launched at a markedly lower price (by 96 percent) than the S3, 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 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 associated with larger, more expensive camera bodies and lenses.
Of the two cameras under consideration, the Canon T6i features an APS-C sensor and the Leica S3 a medium format sensor. The sensor area in the S3 is 307 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.6 and 0.8. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
With 64MP, the S3 offers a higher resolution than the T6i (24MP), but the S3 nevertheless has larger individual pixels (pixel pitch of 4.59μm versus 3.72μm for the T6i) due to its larger sensor. Moreover, the S3 is a much more recent model (by 3 years and 7 months) than the T6i, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that the S3 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
The resolution advantage of the Leica S3 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the S3 for good quality output (200 dots per inch) amounts to 49 x 32.7 inches or 124.5 x 83 cm, for very good quality (250 dpi) 39.2 x 26.1 inches or 99.6 x 66.4 cm, and for excellent quality (300 dpi) 32.7 x 21.8 inches or 83 x 55.3 cm. The corresponding values for the Canon T6i are 30 x 20 inches or 76.2 x 50.8 cm for good quality, 24 x 16 inches or 61 x 40.6 cm for very good quality, and 20 x 13.3 inches or 50.8 x 33.9 cm for excellent quality prints.
The T6i has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.
The Canon EOS Rebel T6i has a native sensitivity range from ISO 100 to ISO 12800, which can be extended to ISO 100-25600. The corresponding ISO settings for the Leica S3 are ISO 100 to ISO 50000 (no boost).
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 adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.
| DXO |
|2.||Leica S3||Medium Format||64.0||9800||6533||4K/24p||..||..||..||..|
|13.||Leica M10||Full Frame||23.8||5952||3992||none||24.4||13.2||2133||86|
|14.||Leica S-E Typ 006||Medium Format||37.5||7500||5000||none||..||..||..||..|
|15.||Leica S Typ 007||Medium Format||37.5||7500||5000||4K/24p||..||..||..||..|
|16.||Leica S Typ 006||Medium Format||37.5||7500||5000||none||23.9||12.2||824||76|
|17.||Leica S2||Medium Format||37.5||7500||5000||none||..||..||..||..|
Many modern cameras are not only capable of taking still images, but can also record movies. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the S3 provides a better video resolution than the T6i. It can shoot movie footage at 4K/24p, while the Canon is limited to 1080/30p.
Apart from body and sensor, cameras can and do differ across a range of features. The T6i and the S3 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 S3 offers a wider field of view (98%) than the one in the T6i (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the S3 has a higher magnification (0.87x vs 0.51x), 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 T6i, the Leica S3, and comparable cameras.
|14.||Leica S-E Typ 006||optical||Y||3.0||922||fixed||n||1/4000s||1.5||n||n|
|15.||Leica S Typ 007||optical||Y||3.0||922||fixed||n||1/4000s||3.5||n||n|
|16.||Leica S Typ 006||optical||Y||3.0||922||fixed||n||1/4000s||1.5||n||n|
One difference between the cameras concerns the presence of an on-board flash. The T6i has one, while the S3 does not. While the built-in flash of the T6i is not very powerful, it can at times be useful as a fill-in light.The T6i 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 S3 does not have a selfie-screen.
The T6i writes its imaging data to SDXC cards, while the S3 uses Compact Flash or SDXC cards. The S3 features dual card slots, which can be very useful in case a memory card fails. In contrast, the T6i only has one slot. The S3 supports UHS-II cards (Ultra High Speed data transfer of up to 312 MB/s), while the T6i can use UHS-I cards (up to 104 MB/s).
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 T6i and Leica S3 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
| NFC |
|14.||Leica S-E Typ 006||Y||-||-||-||-||mini||2.0||-||-||-|
|15.||Leica S Typ 007||Y||stereo||mono||Y||Y||mini||3.0||Y||-||-|
|16.||Leica S Typ 006||Y||-||-||-||-||mini||2.0||-||-||-|
It is notable that the S3 has a headphone jack, which makes it possible to attach external headphones and monitor the quality of sound during the recording process. The T6i lacks such a headphone port.
Studio photographers will appreciate that the Leica S3 (unlike the T6i) 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 S3 has an internal geolocalization sensor and can record GPS coordinates in its EXIF data.
The S3 is a recent model that features in the current product line-up of Leica. In contrast, the T6i has been discontinued (but can be found pre-owned on eBay). As a replacement in the same line of cameras, the T6i was succeeded by the Canon T7i. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Canon and Leica websites.
So what conclusions can be drawn? Is there a clear favorite between the Canon T6i and the Leica S3? Which camera is better? The listing below highlights the relative strengths of the two models.
Arguments in favor of the Canon EOS Rebel T6i:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
- More detailed LCD: Has a higher resolution rear screen (1040k vs 922k dots).
- More flexible LCD: Has a 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 (5 vs 3 flaps/sec) to capture the decisive moment.
- More compact: Is smaller (132x101mm vs 160x120mm) and thus needs less room in the bag.
- Less heavy: Is lighter (by 705g or 56 percent) and hence easier to carry around.
- Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
- Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
- More affordable: Was introduced into a lower priced category (96 percent cheaper at launch).
- More heavily discounted: Has been available for much longer (launched in February 2015).
Reasons to prefer the Leica S3:
- More detail: Has more megapixels (64 vs 24MP), which boosts linear resolution by 63%.
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- Better image quality: Is equipped with a larger and more technologically advanced sensor.
- Richer colors: The sensor size advantage translates into images with better, more accurate colors.
- More dynamic range: Larger sensor captures a wider spectrum of light and dark details.
- Better low-light sensitivity: Larger sensor produces good images even in poorly lit environments.
- Better video: Provides higher definition movie capture (4K/24p vs 1080/30p).
- Better sound control: Has a headphone port that enables audio monitoring while recording.
- More complete view: Has a viewfinder with a larger field of view (98% vs 95%).
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.87x vs 0.51x).
- Easier setting verification: Features a control panel on top to check shooting parameters.
- Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
- 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.
- Faster buffer clearing: Supports a more advanced SD data transfer standard (UHS-II vs UHS-I).
- More prestigious: Has the Leica luxury appeal, which ensures a high resale value.
- More modern: Reflects 3 years and 7 months of technical progress since the T6i launch.
If the count of relative strengths (bullet points above) is taken as a measure, the S3 is the clear winner of the contest (19 : 13 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.
How about other alternatives? Do the specifications of the Canon T6i and the Leica S3 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 says little about, for example, the shooting experience and imaging performance of the T6i and the S3 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.
This is why hands-on reviews by experts are important. The adjacent summary-table relays the overall verdicts of several of the most popular camera review sites (amateurphotographer [AP], cameralabs [CL], 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.
|1.||Canon T6i||5/5||..||75/100||4.5/5||4.5/5||Feb 2015||749|
|2.||Leica S3||..||..||..||..||..||Sep 2018||18,995|
|3.||Canon 77D||4.5/5||..||82/100||4.5/5||4/5||Feb 2017||899|
|4.||Canon T7i||4.5/5||..||80/100||4.5/5||4/5||Feb 2017||749|
|5.||Canon T6s||5/5||+||77/100||4.5/5||4.5/5||Feb 2015||649|
|6.||Canon T5||3/5||+||..||4/5||4.5/5||Feb 2014||449|
|7.||Canon T5i||..||..||76/100||4.5/5||4.5/5||Mar 2013||649|
|8.||Canon T4i||4/5||+ +||77/100||4.5/5||4.5/5||Jun 2012||849|
|9.||Canon T1i||..||+ +||74/100||4.5/5||4.5/5||Mar 2009||799|
|10.||Canon XSi||..||+ +||+ +||4/5||4.5/5||Jan 2008||799|
|11.||Canon XTi||..||+ +||+ +||o||4/5||Aug 2006||799|
|12.||Canon XT||..||80/100||+ +||o||..||Feb 2005||899|
|13.||Leica M10||4.5/5||..||..||4/5||4.5/5||Jan 2017||6,595|
|14.||Leica S-E Typ 006||..||..||..||..||..||Sep 2014||16,900|
|15.||Leica S Typ 007||4/5||..||..||..||..||Sep 2014||24,490|
|16.||Leica S Typ 006||..||..||..||..||..||Sep 2012||21,950|
|17.||Leica S2||..||..||..||..||..||Sep 2008||22,995|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
Care should be taken when interpreting the review scores above, though. The assessments were made in relation to similar cameras of the same technological generation. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. 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 would like to check on the differences and similarities of other camera models, just use the search menu below. 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 T6i vs Leica S3
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 T6i||Leica S3|
|Camera Type||Digital single lens reflex||Digital single lens reflex|
|Camera Lens||Canon EF mount lenses||Leica S mount lenses|
|Launch Date||February 2015||September 2018|
|Launch Price||USD 749||USD 18,995|
|Sensor Specs||Canon T6i||Leica S3|
|Sensor Format||APS-C Sensor||Medium Format Sensor|
|Sensor Size||22.3 x 14.9 mm||45.0 x 30.0 mm|
|Sensor Area||332.27 mm2||1350 mm2|
|Sensor Diagonal||26.8 mm||54.1 mm|
|Sensor Resolution||24 Megapixels||64 Megapixels|
|Image Resolution||6000 x 4000 pixels||9800 x 6533 pixels|
|Pixel Pitch||3.72 μm||4.59 μm|
|Pixel Density||7.22 MP/cm2||4.74 MP/cm2|
|Moiré control||Anti-Alias filter||no AA filter|
|Movie Capability||1080/30p Video||4K/24p Video|
|ISO Setting||100 - 12,800 ISO||100 - 50,000 ISO|
|ISO Boost||100 - 25,600 ISO||no Enhancement|
|Image Processor||DIGIC 6||Maestro II|
|DXO Sensor Quality (score)||71||..|
|DXO Color Depth (bits)||22.7||..|
|DXO Dynamic Range (EV)||12.0||..|
|DXO Low Light (ISO)||919||..|
|Screen Specs||Canon T6i||Leica S3|
|Viewfinder Type||Optical viewfinder||Optical viewfinder|
|Viewfinder Field of View||95%||98%|
|Top-Level Screen||no Top Display||Control Panel|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||3.0inch|
|LCD Resolution||1040k dots||922k dots|
|LCD Attachment||Swivel screen||Fixed screen|
|Touch Input||Touchscreen||no Touchscreen|
|Shooting Specs||Canon T6i||Leica S3|
|Focus System||Phase-detect AF||Phase-detect AF|
|Manual Focusing Aid||no Peaking Feature||Focus Peaking|
|Max Shutter Speed (mechanical)||1/4000s||1/4000s|
|Continuous Shooting||5 shutter flaps/s||3 shutter flaps/s|
|Fill Flash||Built-in Flash||no On-Board Flash|
|Storage Medium||SDXC cards||CF or SDXC cards|
|Second Storage Option||Single card slot||Dual card slots|
|UHS card support||UHS-I||UHS-II|
|Connectivity Specs||Canon T6i||Leica S3|
|Studio Flash||no PC Sync||PC Sync socket|
|USB Connector||USB 2.0||USB 3.0|
|HDMI Port||mini HDMI||mini HDMI|
|Microphone Port||External MIC port||External MIC port|
|Headphone Socket||no Headphone port||Headphone port|
|Wifi Support||Wifi built-in||Wifi built-in|
|Near-Field Communication||NFC built-in||no NFC|
|Geotagging||no internal GPS||GPS built-in|
|Body Specs||Canon T6i||Leica S3|
|Environmental Sealing||not weather sealed||Weathersealed body|
132 x 101 x 78 mm
(5.2 x 4.0 x 3.1 in)
160 x 120 x 80 mm
(6.3 x 4.7 x 3.1 in)
|Camera Weight||555 g (19.6 oz)||1260 g (44.4 oz)|
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