Canon XT vs Sony A9
The Canon EOS Rebel XT (called Canon 350D in some regions) and the Sony Alpha A9 are two digital cameras that were revealed to the public, respectively, in February 2005 and April 2017. The XT is a DSLR, while the A9 is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (XT) and a full frame (A9) sensor. The Canon has a resolution of 8 megapixels, whereas the Sony provides 24 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 XT and the Sony Alpha A9? 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 XT and the Sony A9 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 dimensions are rounded to the nearest millimeter.
The XT can be obtained in two different colors (black, silver), while the A9 is only available in black.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A9 is somewhat larger (2 percent) than the Canon XT. Moreover, the A9 is markedly heavier (25 percent) than the XT. It is noteworthy in this context that the A9 is splash and dust-proof, while the XT 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. A larger imaging sensor will tend to go along with bigger and heavier lenses, although exceptions exist. You can compare the optics available for the two cameras in the Canon EF Lens Catalog (XT) and the Sony FE Lens Catalog (A9). Mirrorless cameras, such as the A9, have moreover the advantage that they can use many lenses from other systems via adapters, as they have a relatively short flange to focal plane distance.
Concerning battery life, the XT gets 400 shots out of its NB-2LH battery, while the A9 can take 650 images on a single charge of its NP-FZ100 power pack. The power pack in the A9 can be charged via the USB port, which can be very convenient when travelling.
The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. 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 XT||127 mm||94 mm||64 mm||540 g||400||n||Feb 2005||899|
|2.||Sony A9||127 mm||96 mm||63 mm||673 g||650||Y||Apr 2017||4,499|
|3.||Canon 77D||131 mm||100 mm||76 mm||540 g||600||n||Feb 2017||899|
|4.||Canon T6i||132 mm||101 mm||78 mm||555 g||440||n||Feb 2015||749|
|5.||Canon T6s||132 mm||101 mm||78 mm||565 g||440||n||Feb 2015||649|
|6.||Canon T4i||133 mm||100 mm||79 mm||575 g||440||n||Jun 2012||849|
|7.||Canon T1i||129 mm||98 mm||62 mm||520 g||400||n||Mar 2009||799|
|8.||Canon XSi||129 mm||98 mm||62 mm||524 g||500||n||Jan 2008||799|
|9.||Canon 30D||144 mm||106 mm||74 mm||785 g||750||n||Feb 2006||1,399|
|10.||Canon XTi||127 mm||84 mm||65 mm||556 g||370||n||Aug 2006||799|
|11.||Canon 20D||144 mm||106 mm||72 mm||770 g||700||n||Aug 2004||1,499|
|12.||Canon Rebel||142 mm||99 mm||72 mm||649 g||400||n||Aug 2003||899|
|13.||Sony A9 II||129 mm||96 mm||76 mm||678 g||690||Y||Oct 2019||4,499|
|14.||Sony A7 III||127 mm||96 mm||74 mm||650 g||610||Y||Feb 2018||1,999|
|15.||Sony A7R II||127 mm||96 mm||60 mm||625 g||290||Y||Jun 2015||3,199|
|16.||Sony A7S II||127 mm||96 mm||60 mm||627 g||370||Y||Sep 2015||2,999|
|17.||Sony A7 II||127 mm||96 mm||60 mm||599 g||350||Y||Nov 2014||1,999|
|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 XT was launched at a markedly lower price (by 80 percent) than the A9, 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 imaging sensor is a crucial determinant 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 tend to be more expensive and lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Canon XT features an APS-C sensor and the Sony A9 a full frame sensor. The sensor area in the A9 is 157 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.6 and 1.0. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
With 24MP, the A9 offers a higher resolution than the XT (8MP), but the A9 has smaller individual pixels (pixel pitch of 5.94μm versus 6.41μm for the XT). Yet, the A9 is a much more recent model (by 12 years and 2 months) than the XT, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units.
The resolution advantage of the Sony A9 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A9 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 XT are 17.3 x 11.5 inches or 43.9 x 29.3 cm for good quality, 13.8 x 9.2 inches or 35.1 x 23.4 cm for very good quality, and 11.5 x 7.7 inches or 29.3 x 19.5 cm for excellent quality prints.
The A9 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.
The Canon EOS Rebel XT has a native sensitivity range from ISO 100 to ISO 1600. The corresponding ISO settings for the Sony Alpha A9 are ISO 100 to ISO 51200, with the possibility to increase the ISO range to 50-204800.
For many cameras, data on sensor performance has been reported by DXO Mark. This service determines an overall sensor rating, as well as sub-scores for low-light sensitivity ("DXO Sports"), dynamic range ("DXO Landscape"), and color depth ("DXO Portrait"). Of the two cameras under consideration, the A9 offers substantially better image quality than the XT (overall score 32 points higher). The advantage is based on 3.1 bits higher color depth, 2.5 EV in additional dynamic range, and 2.5 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.
| DXO |
|2.||Sony A9||Full Frame||24.0||6000||4000||4K/30p||24.9||13.3||3517||92|
|13.||Sony A9 II||Full Frame||24.0||6000||4000||4K/30p||25.0||14.0||3434||93|
|14.||Sony A7 III||Full Frame||24.0||6000||4000||4K/30p||25.0||14.7||3730||96|
|15.||Sony A7R II||Full Frame||42.2||7952||5304||4K/30p||26.0||13.9||3434||98|
|16.||Sony A7S II||Full Frame||12.0||4240||2832||4K/30p||23.6||13.3||2993||85|
|17.||Sony A7 II||Full Frame||24.0||6000||4000||1080/60p||24.9||13.6||2449||90|
Many modern cameras cannot only take still pictures, but also record videos. The A9 indeed provides for movie recording, while the XT does not. The highest resolution format that the A9 can use is 4K/30p.
Beyond body and sensor, cameras can and do differ across a range of features. For example, the A9 has an electronic viewfinder (3686k dots), while the XT has an optical one. Both systems have their advantages, with the electronic viewfinder making it possible to project supplementary shooting information into the framing view, whereas the optical viewfinder offers lag-free viewing and a very clear framing image. The viewfinder in the A9 offers a wider field of view (100%) than the one in the XT (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the A9 has a higher magnification (0.78x 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 XT, the Sony A9, and comparable cameras.
|13.||Sony A9 II||3686||n||3.0||1440||tilting||Y||1/8000s||10.0||n||Y|
|14.||Sony A7 III||2359||n||3.0||922||tilting||Y||1/8000s||10.0||n||Y|
|15.||Sony A7R II||2400||n||3.0||1229||tilting||n||1/8000s||5.0||n||Y|
|16.||Sony A7S II||2400||n||3.0||1229||tilting||n||1/8000s||5.0||n||Y|
|17.||Sony A7 II||2400||n||3.0||1230||tilting||n||1/8000s||5.0||n||Y|
One difference between the cameras concerns the presence of an on-board flash. The XT has one, while the A9 does not. While the built-in flash of the XT is not very powerful, it can at times be useful as a fill-in light.
The reported shutter speed information refers to the use of the mechanical shutter. Yet, some cameras only have an electronic shutter, while others have an electronic shutter in addition to a mechanical one. In fact, the A9 is one of those camera that have an additional electronic shutter, which makes completely silent shooting possible. However, this mode is less suitable for photographing moving objects (risk of rolling shutter) or shooting under artificial light sources (risk of flickering).
The XT writes its imaging data to Compact Flash cards, while the A9 uses SDXC or Memory Stick PRO Duo cards. The A9 features dual card slots, which can be very useful in case a memory card fails. In contrast, the XT 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 XT and Sony Alpha A9 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
| NFC |
|13.||Sony A9 II||Y||stereo||mono||Y||Y||micro||3.1||Y||Y||Y|
|14.||Sony A7 III||Y||stereo||mono||Y||Y||micro||3.1||Y||Y||Y|
|15.||Sony A7R II||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-|
|16.||Sony A7S II||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-|
|17.||Sony A7 II||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-|
It is notable that the A9 offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the XT does not provide wifi capability.
Studio photographers will appreciate that the Sony A9 (unlike the XT) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
Both the XT and the A9 have been discontinued, but can regularly be found used on eBay. The XT was replaced by the Canon Xti, while the A9 was followed by the Sony A9 II. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Canon and Sony websites.
So how do things add up? Is the Canon XT better than the Sony A9 or vice versa? The listing below highlights the relative strengths of the two models.
Reasons to prefer the Canon EOS Rebel XT:
- Brighter framing: Features an optical viewfinder for clear, lag-free composition.
- Less heavy: Is lighter (by 133g or 20 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 (80 percent cheaper at launch).
- More heavily discounted: Has been available for much longer (launched in February 2005).
Arguments in favor of the Sony Alpha A9:
- More detail: Has more megapixels (24 vs 8MP), which boosts linear resolution by 74%.
- Better image quality: Scores substantially higher (32 points) in the DXO overall evaluation.
- Richer colors: Generates noticeably more natural colors (3.1 bits more color depth).
- More dynamic range: Captures a broader range of light and dark details (2.5 EV of extra DR).
- Better low-light sensitivity: Can shoot in dim conditions (2.5 stops ISO advantage).
- Broader imaging potential: Can capture not only stills but also 4K/30p video.
- Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
- More framing info: Has an electronic viewfinder that displays shooting data.
- 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 (0.78x vs 0.49x).
- Larger screen: Has a bigger rear LCD (3.0" vs 1.8") for image review and settings control.
- More detailed LCD: Has a higher resolution rear screen (1440k vs 115k dots).
- More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
- Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
- Faster burst: Shoots at higher frequency (20 vs 3 flaps/sec) to capture the decisive moment.
- Less disturbing: Has an electronic shutter option for completely silent shooting.
- Longer lasting: Gets more shots (650 versus 400) out of a single battery charge.
- Easier travel charging: Can be conveniently charged via its USB port.
- Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
- Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
- More legacy lens friendly: Can use many non-native lenses via adapters.
- 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.
- 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 12 years and 2 months of technical progress since the XT launch.
If the count of relative strengths (bullet points above) is taken as a measure, the A9 is the clear winner of the contest (28 : 5 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 XT and the Sony A9 place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Mirrorless Interchangeable Lens Camera listings 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 incomplete and does no justice, for example, to the way the XT or the A9 perform in practice. 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 table below provides a synthesis of the camera assessments of some of the best known photo-gear 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 XT||..||80/100||+ +||o||..||Feb 2005||899|
|2.||Sony A9||5/5||+ +||89/100||5/5||5/5||Apr 2017||4,499|
|3.||Canon 77D||4.5/5||..||82/100||4.5/5||4/5||Feb 2017||899|
|4.||Canon T6i||5/5||..||75/100||4.5/5||4.5/5||Feb 2015||749|
|5.||Canon T6s||5/5||+||77/100||4.5/5||4.5/5||Feb 2015||649|
|6.||Canon T4i||4/5||+ +||77/100||4.5/5||4.5/5||Jun 2012||849|
|7.||Canon T1i||..||+ +||74/100||4.5/5||4.5/5||Mar 2009||799|
|8.||Canon XSi||..||+ +||+ +||4/5||4.5/5||Jan 2008||799|
|9.||Canon 30D||..||+ +||+ +||o||..||Feb 2006||1,399|
|10.||Canon XTi||..||+ +||+ +||o||4/5||Aug 2006||799|
|11.||Canon 20D||..||..||+ +||..||..||Aug 2004||1,499|
|12.||Canon Rebel||..||..||+ +||..||..||Aug 2003||899|
|13.||Sony A9 II||..||..||90/100||5/5||5/5||Oct 2019||4,499|
|14.||Sony A7 III||..||+ +||89/100||5/5||5/5||Feb 2018||1,999|
|15.||Sony A7R II||5/5||+ +||90/100||5/5||5/5||Jun 2015||3,199|
|16.||Sony A7S II||5/5||+||..||4.5/5||5/5||Sep 2015||2,999|
|17.||Sony A7 II||5/5||+||82/100||4.5/5||5/5||Nov 2014||1,999|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
Care should be taken when interpreting the review scores above, 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 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
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Specifications: Canon XT vs Sony A9
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 XT||Sony A9|
|Camera Type||Digital single lens reflex||Mirrorless system camera|
|Camera Lens||Canon EF mount lenses||Sony E mount lenses|
|Launch Date||February 2005||April 2017|
|Launch Price||USD 899||USD 4,499|
|Sensor Specs||Canon XT||Sony A9|
|Sensor Format||APS-C Sensor||Full Frame Sensor|
|Sensor Size||22.2 x 14.8 mm||35.6 x 23.8 mm|
|Sensor Area||328.56 mm2||847.28 mm2|
|Sensor Diagonal||26.7 mm||42.8 mm|
|Sensor Resolution||8 Megapixels||24 Megapixels|
|Image Resolution||3456 x 2304 pixels||6000 x 4000 pixels|
|Pixel Pitch||6.41 μm||5.94 μm|
|Pixel Density||2.42 MP/cm2||2.83 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||no Video||4K/30p Video|
|ISO Setting||100 - 1,600 ISO||100 - 51,200 ISO|
|ISO Boost||no Enhancement||50 - 204,800 ISO|
|Image Processor||DIGIC II||BIONZ X|
|DXO Sensor Quality (score)||60||92|
|DXO Color Depth (bits)||21.8||24.9|
|DXO Dynamic Range (EV)||10.8||13.3|
|DXO Low Light (ISO)||637||3517|
|Screen Specs||Canon XT||Sony A9|
|Viewfinder Type||Optical viewfinder||Electronic viewfinder|
|Viewfinder Field of View||95%||100%|
|Viewfinder Resolution||3686k dots|
|LCD Framing||Live View|
|Rear LCD Size||1.8inch||3.0inch|
|LCD Resolution||115k dots||1440k dots|
|LCD Attachment||Fixed screen||Tilting screen|
|Touch Input||no Touchscreen||Touchscreen|
|Shooting Specs||Canon XT||Sony A9|
|Focus System||Phase-detect AF||On-Sensor Phase-detect|
|Manual Focusing Aid||no Peaking Feature||Focus Peaking|
|Max Shutter Speed (mechanical)||1/4000s||1/8000s|
|Continuous Shooting||3 shutter flaps/s||20 shutter flaps/s|
|Shutter Life Expectancy||50 000 actuations||500 000 actuations|
|Electronic Shutter||no E-Shutter||up to 1/32000s|
|Image Stabilization||Lens stabilization only||In-body stabilization|
|Fill Flash||Build-in Flash||no On-Board Flash|
|Storage Medium||CF cards||MS or SDXC cards|
|Second Storage Option||Single card slot||Dual card slots|
|Connectivity Specs||Canon XT||Sony A9|
|Studio Flash||no PC Sync||PC Sync socket|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||no HDMI||micro HDMI|
|Microphone Port||no MIC socket||External MIC port|
|Headphone Socket||no Headphone port||Headphone port|
|Wifi Support||no Wifi||Wifi built-in|
|Near-Field Communication||no NFC||NFC built-in|
|Bluetooth Support||no Bluetooth||Bluetooth built-in|
|Body Specs||Canon XT||Sony A9|
|Environmental Sealing||not weather sealed||Weathersealed body|
|Battery Life (CIPA)||400 shots per charge||650 shots per charge|
|In-Camera Charging||no USB charging||USB charging|
127 x 94 x 64 mm
(5.0 x 3.7 x 2.5 in)
127 x 96 x 63 mm
(5.0 x 3.8 x 2.5 in)
|Camera Weight||540 g (19.0 oz)||673 g (23.7 oz)|
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