Canon XTi vs Leica S3
The Canon EOS Rebel XTi (called Canon 400D in some regions) and the Leica S3 are two digital cameras that were announced, respectively, in August 2006 and September 2018. Both are DSLR (Digital Single Lens Reflex) cameras that are based on an APS-C (XTi) and a medium format (S3) sensor. The Canon has a resolution of 10.1 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 XTi 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.
The physical size and weight of the Canon XTi and the Leica S3 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.
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 (80 percent) than the Canon XTi. Moreover, the S3 is substantially heavier (127 percent) than the XTi. It is noteworthy in this context that the S3 is splash and dust-proof, 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. 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. 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.
|1.||Canon XTi||127 mm||84 mm||65 mm||556 g||370||n||Aug 2006||799|
|2.||Leica S3||160 mm||120 mm||80 mm||1260 g||..||Y||Sep 2018||18,995|
|3.||Canon T6i||132 mm||101 mm||78 mm||555 g||440||n||Feb 2015||749|
|4.||Canon T6s||132 mm||101 mm||78 mm||565 g||440||n||Feb 2015||649|
|5.||Canon T4i||133 mm||100 mm||79 mm||575 g||440||n||Jun 2012||849|
|6.||Canon T3||130 mm||100 mm||78 mm||495 g||700||n||Feb 2011||449|
|7.||Canon T2i||129 mm||98 mm||62 mm||530 g||440||n||Feb 2010||699|
|8.||Canon T1i||129 mm||98 mm||62 mm||520 g||400||n||Mar 2009||799|
|9.||Canon XSi||129 mm||98 mm||62 mm||524 g||500||n||Jan 2008||799|
|10.||Canon 40D||146 mm||108 mm||74 mm||822 g||750||n||Aug 2007||1,299|
|11.||Canon XT||127 mm||94 mm||64 mm||540 g||400||n||Feb 2005||899|
|12.||Canon Rebel||142 mm||99 mm||72 mm||649 g||400||n||Aug 2003||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.|
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 XTi 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.
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.
Of the two cameras under consideration, the Canon XTi features an APS-C sensor and the Leica S3 a medium format sensor. The sensor area in the S3 is 310 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.
Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors.
With 64MP, the S3 offers a higher resolution than the XTi (10.1MP), but the S3 has smaller individual pixels (pixel pitch of 4.59μm versus 5.71μm for the XTi). Yet, the S3 is a much more recent model (by 12 years and 1 month) than the XTi, and its sensor will have benefitted from technological advances during this time that 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 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 Canon EOS Rebel XTi has a native sensitivity range from ISO 100 to ISO 1600. The corresponding ISO settings for the Leica S3 are ISO 100 to ISO 50000 (no boost).
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 table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar 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 cannot only take still pictures, but also record videos. The S3 indeed provides for movie recording, while the XTi does not. The highest resolution format that the S3 can use is 4K/24p.
Beyond body and sensor, cameras can and do differ across a range of features. The XTi 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 XTi (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 0.49x), 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 XTi, 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 XTi has one, while the S3 does not. While the built-in flash of the XTi is not very powerful, it can at times be useful as a fill-in light.
The XTi writes its imaging data to Compact Flash 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 XTi only has one slot.
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 XTi 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 offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the XTi does not provide wifi capability.
Studio photographers will appreciate that the Leica S3 (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 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 XTi has been discontinued (but can be found pre-owned on eBay). As a replacement in the same line of cameras, the XTi was succeeded by the Canon Xsi. 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 is the bottom line? Is there a clear favorite between the Canon XTi and the Leica S3? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.
Reasons to prefer the Canon EOS Rebel XTi:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- More compact: Is smaller (127x84mm vs 160x120mm) and thus needs less room in the bag.
- Less heavy: Is lighter (by 704g or 56 percent) and hence easier to carry around.
- Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
- 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 August 2006).
Arguments in favor of the Leica S3:
- More detail: Has more megapixels (64 vs 10.1MP), which boosts linear resolution by 152%.
- 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.
- Broader imaging potential: Can capture not only stills but also 4K/24p video.
- 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 0.49x).
- Easier setting verification: Features a control panel on top to check 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 (922k vs 230k dots).
- 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).
- Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
- 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 prestigious: Has the Leica luxury appeal, which ensures a high resale value.
- More modern: Reflects 12 years and 1 month of technical progress since the XTi launch.
If the count of relative strengths (bullet points above) is taken as a measure, the S3 is the clear winner of the contest (20 : 6 points). However, the relative importance of the various individual camera aspects will vary according to personal preferences and needs, so that you might like to apply corresponding weights to the particular features before making a decision 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 XTi 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 comparison of technical specifications can provide a useful overview of the capabilities of different cameras, it remains incomplete and does no justice, for example, to the way the XTi or the S3 perform in practice. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.
This is why hands-on reviews by experts are important. The following table reports the overall ratings of the cameras as published by some of the major 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 XTi||..||+ +||+ +||o||4/5||Aug 2006||799|
|2.||Leica S3||..||..||..||..||..||Sep 2018||18,995|
|3.||Canon T6i||5/5||..||75/100||4.5/5||4.5/5||Feb 2015||749|
|4.||Canon T6s||5/5||+||77/100||4.5/5||4.5/5||Feb 2015||649|
|5.||Canon T4i||4/5||+ +||77/100||4.5/5||4.5/5||Jun 2012||849|
|6.||Canon T3||..||80/100||69/100||4/5||4.5/5||Feb 2011||449|
|7.||Canon T2i||..||+ +||77/100||4/5||4.5/5||Feb 2010||699|
|8.||Canon T1i||..||+ +||74/100||4.5/5||4.5/5||Mar 2009||799|
|9.||Canon XSi||..||+ +||+ +||4/5||4.5/5||Jan 2008||799|
|10.||Canon 40D||..||+ +||+ +||4.5/5||4.5/5||Aug 2007||1,299|
|11.||Canon XT||..||80/100||+ +||o||..||Feb 2005||899|
|12.||Canon Rebel||..||..||+ +||..||..||Aug 2003||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.|
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 XTi 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 XTi||Leica S3|
|Camera Type||Digital single lens reflex||Digital single lens reflex|
|Camera Lens||Canon EF mount lenses||Leica S mount lenses|
|Launch Date||August 2006||September 2018|
|Launch Price||USD 799||USD 18,995|
|Sensor Specs||Canon XTi||Leica S3|
|Sensor Format||APS-C Sensor||Medium Format Sensor|
|Sensor Size||22.2 x 14.8 mm||45.0 x 30.0 mm|
|Sensor Area||328.56 mm2||1350 mm2|
|Sensor Diagonal||26.7 mm||54.1 mm|
|Sensor Resolution||10.1 Megapixels||64 Megapixels|
|Image Resolution||3888 x 2592 pixels||9800 x 6533 pixels|
|Pixel Pitch||5.71 μm||4.59 μm|
|Pixel Density||3.07 MP/cm2||4.74 MP/cm2|
|Moiré control||Anti-Alias filter||no AA filter|
|Movie Capability||no Video||4K/24p Video|
|ISO Setting||100 - 1,600 ISO||100 - 50,000 ISO|
|Image Processor||DIGIC II||Maestro II|
|DXO Sensor Quality (score)||62||..|
|DXO Color Depth (bits)||22.1||..|
|DXO Dynamic Range (EV)||11.0||..|
|DXO Low Light (ISO)||664||..|
|Screen Specs||Canon XTi||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|
|Rear LCD Size||2.5inch||3.0inch|
|LCD Resolution||230k dots||922k dots|
|LCD Attachment||Fixed screen||Fixed screen|
|Shooting Specs||Canon XTi||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||3 shutter flaps/s||3 shutter flaps/s|
|Fill Flash||Build-in Flash||no On-Board Flash|
|Storage Medium||CF cards||CF or SDXC cards|
|Second Storage Option||Single card slot||Dual card slots|
|Connectivity Specs||Canon XTi||Leica S3|
|Studio Flash||no PC Sync||PC Sync socket|
|USB Connector||USB 2.0||USB 3.0|
|HDMI Port||no HDMI||mini HDMI|
|Microphone Port||no MIC socket||External MIC port|
|Headphone Socket||no Headphone port||Headphone port|
|Wifi Support||no Wifi||Wifi built-in|
|Geotagging||no internal GPS||GPS built-in|
|Body Specs||Canon XTi||Leica S3|
|Environmental Sealing||not weather sealed||Weathersealed body|
127 x 84 x 65 mm
(5.0 x 3.3 x 2.6 in)
160 x 120 x 80 mm
(6.3 x 4.7 x 3.1 in)
|Camera Weight||556 g (19.6 oz)||1260 g (44.4 oz)|
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