Canon T3i vs Sony A68
The Canon EOS Rebel T3i (called Canon 600D in some regions) and the Sony Alpha SLT-A68 are two digital cameras that were announced, respectively, in February 2011 and November 2015. Both are DSLR (Digital Single Lens Reflex) cameras that are equipped with an APS-C sensor. The Canon has a resolution of 17.9 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.
|Canon T3i||Sony A68|
|Digital single lens reflex||Digital single lens reflex|
|Canon EF mount lenses||Sony A mount lenses|
|17.9 MP, APS-C Sensor||24 MP, APS-C Sensor|
|1080/30p Video||1080/60i Video|
|ISO 100-6400 (100-12800)||ISO 100-25600|
|Optical viewfinder||Electronic viewfinder (1440k dots)|
|3.0" LCD, 1040k dots||2.7" LCD, 460k dots|
|Swivel screen (not touch-sensitive)||Tilting screen (not touch-sensitive)|
|3.7 shutter flaps per second||8 shutter flaps per second|
|Lens stabilization only||In-body stabilization|
|440 shots per battery charge||540 shots per battery charge|
|133 x 100 x 80 mm, 570 g||143 x 104 x 81 mm, 610 g|
Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS Rebel T3i and the Sony Alpha SLT-A68? 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 side-by-side display below illustrates the physical size and weight of the Canon T3i and the Sony A68. 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 Sony A68 is notably larger (12 percent) than the Canon T3i. Moreover, the A68 is markedly heavier (7 percent) than the T3i. In this context, it is worth noting that neither the T3i nor the A68 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. 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, 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.
|Canon T3i»||5.2 in||3.9 in||3.1 in||20.1 oz||440||n||Feb 2011||599||Canon T3i|
|Sony A68«||5.6 in||4.1 in||3.2 in||21.5 oz||540||n||Nov 2015||699||Sony A68|
|Canon SL2« »||4.8 in||3.7 in||2.8 in||16.0 oz||650||n||Jun 2017||549||Canon SL2|
|Canon T6s« »||5.2 in||4.0 in||3.1 in||19.9 oz||440||n||Feb 2015||649||Canon T6s|
|Canon T5« »||5.1 in||3.9 in||3.1 in||16.9 oz||500||n||Feb 2014||449||Canon T5|
|Canon SL1« »||4.6 in||3.6 in||2.7 in||14.4 oz||380||n||Mar 2013||549||Canon SL1|
|Canon T5i« »||5.2 in||3.9 in||3.1 in||20.5 oz||440||n||Mar 2013||649||Canon T5i|
|Canon M« »||4.3 in||2.6 in||1.3 in||10.5 oz||230||n||Jul 2012||599||Canon M|
|Canon T4i« »||5.2 in||3.9 in||3.1 in||20.3 oz||440||n||Jun 2012||849||Canon T4i|
|Canon T3« »||5.1 in||3.9 in||3.1 in||17.5 oz||700||n||Feb 2011||449||Canon T3|
|Canon T2i« »||5.1 in||3.9 in||2.4 in||18.7 oz||440||n||Feb 2010||699||Canon T2i|
|Canon T1i« »||5.1 in||3.9 in||2.4 in||18.3 oz||400||n||Mar 2009||799||Canon T1i|
|Panasonic ZS100« »||4.4 in||2.6 in||1.7 in||11.0 oz||300||n||Jan 2016||699||Panasonic ZS100|
|Sony A77 II« »||5.6 in||4.1 in||3.2 in||22.8 oz||480||Y||May 2014||1,199||Sony A77 II|
|Sony A6000« »||4.7 in||2.6 in||1.8 in||12.1 oz||360||n||Feb 2014||599||Sony A6000|
|Sony A58« »||5.1 in||3.7 in||3.1 in||17.4 oz||690||n||Feb 2013||599||Sony A58|
|Sony A77« »||5.6 in||4.1 in||3.2 in||25.8 oz||470||Y||Aug 2011||1,399||Sony A77|
|Note: Measurements and pricing do not include easily detachable parts, such as interchangeable lenses or optional viewfinders.|
Any camera decision will naturally be influenced heavily by the price. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The T3i was launched at a somewhat lower price (by 14 percent) than the A68, which makes it more attractive for photographers on a tight budget. 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. 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 more expensive and 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 A68 is 11 percent bigger. As a result of these sensor size differences, the cameras have format factors, respectively, of 1.6 (T3i) and 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
In terms of underlying technology, both cameras are build around CMOS sensors.
With 24MP, the A68 offers a higher resolution than the T3i (17.9MP), but the A68 has smaller individual pixels (pixel pitch of 3.91μm versus 4.31μm for the T3i). Yet, the A68 is a much more recent model (by 4 years and 8 months) than the T3i, 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 A68 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A68 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 T3i are 25.9 x 17.3 inch or 65.8 x 43.9 cm for good quality, 20.7 x 13.8 inch or 52.7 x 35.1 cm for very good quality, and 17.3 x 11.5 inch or 43.9 x 29.3 cm for excellent quality prints.
The Canon EOS Rebel T3i 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 Sony Alpha SLT-A68 are ISO 100 to ISO 25600 (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"). Of the two cameras under consideration, the A68 offers substantially better image quality than the T3i (overall score 14 points higher). The advantage is based on 2 bits higher color depth, 2 EV in additional dynamic range, and 0.2 stops of reduced 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.
|Canon T3i||APS-C||17.9||5184||3456||1080/30p||22.1||11.5||793||65||Canon T3i|
|Sony A68||APS-C||24.0||6000||4000||1080/60i||24.1||13.5||701||79||Sony A68|
|Canon SL2||APS-C||24.0||6000||4000||1080/60p||23.6||13.4||1041||79||Canon SL2|
|Canon T6s||APS-C||24.0||6000||4000||1080/30p||22.6||12.0||915||70||Canon T6s|
|Canon T5||APS-C||17.9||5184||3456||1080/30p||21.9||11.3||724||63||Canon T5|
|Canon SL1||APS-C||17.9||5184||3456||1080/30p||21.8||11.3||843||63||Canon SL1|
|Canon T5i||APS-C||17.9||5184||3456||1080/30p||21.7||11.2||681||61||Canon T5i|
|Canon M||APS-C||17.9||5184||3456||1080/30p||22.1||11.2||827||65||Canon M|
|Canon T4i||APS-C||17.9||5184||3456||1080/30p||21.7||11.2||722||62||Canon T4i|
|Canon T3||APS-C||12.2||4272||2848||720/30p||21.9||11.0||755||62||Canon T3|
|Canon T2i||APS-C||17.9||5184||3456||1080/30p||22.1||11.5||784||66||Canon T2i|
|Canon T1i||APS-C||15.1||4752||3168||1080/20p||21.7||11.5||663||63||Canon T1i|
|Panasonic ZS100||1-inch||20.0||5472||3648||4K/30p||22.8||12.5||559||70||Panasonic ZS100|
|Sony A77 II||APS-C||24.0||6000||4000||1080/60p||..||..||..||..||Sony A77 II|
|Sony A6000||APS-C||24.0||6000||4000||1080/60p||24.1||13.1||1347||82||Sony A6000|
|Sony A58||APS-C||19.8||5456||3632||1080/60i||23.3||12.5||753||74||Sony A58|
|Sony A77||APS-C||24.0||6000||4000||1080/60p||24.0||13.2||801||78||Sony A77|
Many modern cameras are not only capable of taking still images, but also of capturing video footage. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the A68 provides a faster frame rate than the T3i. It can shoot movie footage at 1080/60i, while the Canon is limited to 1080/30p.
Apart from body and sensor, cameras can and do differ across a variety of features. For example, the A68 has an electronic viewfinder (1440k dots), while the T3i 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 A68 offers a wider field of view (100%) than the one in the T3i (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the A68 has a higher magnification (0.57x vs 0.53x), 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 T3i and Sony A68 along with similar information for a selection of comparators.
|Canon T3i||optical||n||3.0||1040||swivel||n||1/4000s||3.7||Y||n||Canon T3i|
|Sony A68||1440||Y||2.7||460||tilting||n||1/4000s||8.0||Y||Y||Sony A68|
|Canon SL2||optical||n||3.0||1040||swivel||Y||1/4000s||5.0||Y||n||Canon SL2|
|Canon T6s||optical||Y||3.0||1040||swivel||Y||1/4000s||5.0||Y||n||Canon T6s|
|Canon T5||optical||n||3.0||460||fixed||n||1/4000s||3.0||Y||n||Canon T5|
|Canon SL1||optical||n||3.0||1040||fixed||Y||1/4000s||4.9||Y||n||Canon SL1|
|Canon T5i||optical||n||3.0||1040||swivel||Y||1/4000s||5.0||Y||n||Canon T5i|
|Canon M||none||n||3.0||1040||fixed||Y||1/4000s||4.3||n||n||Canon M|
|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|
|Panasonic ZS100||1166||n||3.0||1040||fixed||Y||1/2000s||10.0||Y||Y||Panasonic ZS100|
|Sony A77 II||2359||Y||3.0||1229||full-flex||n||1/8000s||12.0||Y||Y||Sony A77 II|
|Sony A6000||1440||n||3.0||922||tilting||n||1/4000s||11.0||Y||n||Sony A6000|
|Sony A58||1440||n||2.7||460||tilting||n||1/4000s||5.0||Y||Y||Sony A58|
|Sony A77||2359||Y||3.0||921||full-flex||n||1/8000s||12.0||Y||Y||Sony A77|
One feature that differentiates the A68 and the T3i is in-body image stabilization (IBIS). The A68 reduces the risk of handshake-induced blur with all attached lenses, while the T3i has to rely on optical image stabilization in OIS-equipped lenses to achieve the same effect.The T3i 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 A68 does not have a selfie-screen.
The T3i writes its imaging data to SDXC cards, while the A68 uses SDXC or Memory Stick PRO Duo cards. The A68 supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the T3i 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 T3i and Sony Alpha SLT-A68 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
|Canon T3i||Y||mono||mono||Y||-||mini||2.0||-||-||-||Canon T3i|
|Sony A68||Y||stereo||mono||Y||-||micro||2.0||-||-||-||Sony A68|
|Canon SL2||Y||stereo||mono||Y||-||mini||2.0||Y||Y||Y||Canon SL2|
|Canon T6s||Y||stereo||mono||Y||-||mini||2.0||Y||Y||-||Canon T6s|
|Canon T5||Y||mono||mono||-||-||mini||2.0||-||-||-||Canon T5|
|Canon SL1||Y||mono||mono||Y||-||mini||2.0||-||-||-||Canon SL1|
|Canon T5i||Y||stereo||mono||Y||-||mini||2.0||-||-||-||Canon T5i|
|Canon M||Y||stereo||mono||Y||-||mini||2.0||-||-||-||Canon M|
|Canon T4i||Y||stereo||mono||Y||-||mini||2.0||-||-||-||Canon T4i|
|Canon T3||Y||stereo||mono||-||-||mini||2.0||-||-||-||Canon T3|
|Canon T2i||Y||stereo||none||Y||-||mini||2.0||-||-||-||Canon T2i|
|Canon T1i||Y||mono||mono||-||-||mini||2.0||-||-||-||Canon T1i|
|Panasonic ZS100||-||stereo||mono||-||-||micro||2.0||Y||-||-||Panasonic ZS100|
|Sony A77 II||Y||stereo||mono||Y||-||mini||2.0||Y||Y||-||Sony A77 II|
|Sony A6000||Y||stereo||mono||-||-||micro||2.0||Y||Y||-||Sony A6000|
|Sony A58||Y||stereo||mono||Y||-||mini||2.0||-||-||-||Sony A58|
|Sony A77||Y||stereo||mono||Y||-||mini||2.0||-||-||-||Sony A77|
Both the T3i and the A68 have been discontinued, but can regularly be found used on eBay. The T3i was replaced by the Canon T4i, while the A68 does not have a direct successor. 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 there a clear favorite between the Canon T3i and the Sony A68? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.
Advantages of the Canon EOS Rebel T3i:
- Brighter framing: Features an optical viewfinder for clear, lag-free composition.
- 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 460k dots).
- More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
- More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
- More compact: Is smaller (133x100mm vs 143x104mm) and thus needs less room in the bag.
- More affordable: Was introduced into a lower priced segment (14 percent cheaper at launch).
- More heavily discounted: Has been available for much longer (launched in February 2011).
Arguments in favor of the Sony Alpha SLT-A68:
- More detail: Has more megapixels (24 vs 17.9MP), which boosts linear resolution by 16%.
- Better image quality: Scores substantially higher (14 points) in the DXO overall evaluation.
- Richer colors: Generates noticeably more natural colors (2 bits more color depth).
- More dynamic range: Captures a broader range of light and dark details (2 EV of extra DR).
- Better video: Provides higher movie framerates (1080/60i versus 1080/30p).
- 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 (0.57x vs 0.53x).
- Easier setting verification: Features a control panel on top to check shooting parameters.
- Faster burst: Shoots at higher frequency (8 vs 3.7 flaps/sec) to capture the decisive moment.
- Longer lasting: Gets more shots (540 versus 440) out of a single battery charge.
- Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
- Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
- More modern: Reflects 4 years and 8 months of technical progress since the T3i launch.
If the number of relative strengths (bullet points above) is taken as a guide, the A68 is the clear winner of the contest (14 : 8 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 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 T3i and the Sony A68 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 T3i and the A68 in practical situations. 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 (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.
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. Thus, a score needs to be put into the context of the launch date and the launch price 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
Did this review help to inform your camera decision process? In case you are interested in seeing how other cameras pair up, just make a corresponding selection in the search boxes below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.
Specifications: Canon T3i vs Sony A68
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 T3i||Sony A68|
|Camera Type||Digital single lens reflex||Digital single lens reflex|
|Camera Lens||Canon EF mount lenses||Sony A mount lenses|
|Launch Date||February 2011||November 2015|
|Launch Price||USD 599||USD 699|
|Sensor Specs||Canon T3i||Sony A68|
|Sensor Format||APS-C Sensor||APS-C Sensor|
|Sensor Size||22.3 x 14.9 mm||23.5 x 15.6 mm|
|Sensor Area||332.27 mm2||366.6 mm2|
|Sensor Diagonal||26.8 mm||28.2 mm|
|Sensor Resolution||17.9 Megapixels||24 Megapixels|
|Image Resolution||5184 x 3456 pixels||6000 x 4000 pixels|
|Pixel Pitch||4.31 μm||3.91 μm|
|Pixel Density||5.39 MP/cm2||6.55 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||1080/30p Video||1080/60i Video|
|ISO Setting||100-6400 ISO||100-25600 ISO|
|ISO Boost||100-12800 ISO||no Enhancement|
|Image Processor||DIGIC 4||BIONZ X|
|DXO Sensor Quality (score)||65||79|
|DXO Color Depth (bits)||22.1||24.1|
|DXO Dynamic Range (EV)||11.5||13.5|
|DXO Low Light (ISO)||793||701|
|Screen Specs||Canon T3i||Sony A68|
|Viewfinder Type||Optical viewfinder||Electronic viewfinder|
|Viewfinder Field of View||95%||100%|
|Viewfinder Resolution||1440k dots|
|Top-Level Screen||no Top Display||Control Panel|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0 inch||2.7 inch|
|LCD Resolution||1040k dots||460k dots|
|LCD Attachment||Swivel screen||Tilting screen|
|Shooting Specs||Canon T3i||Sony A68|
|Focus System||Phase-detect AF||Phase-detect AF|
|Manual Focusing Aid||No Peaking Feature||Focus Peaking|
|Max Shutter Speed (mechanical)||1/4000/s||1/4000/s|
|Continuous Shooting||3.7 shutter flaps/s||8 shutter flaps/s|
|Shutter Life Expectancy||100 000 actuations||100 000 actuations|
|Image Stabilization||Lens stabilization only||In-body stabilization|
|Fill Flash||Build-in Flash||Build-in Flash|
|Storage Medium||SDXC cards||MS or SDXC cards|
|Second Storage Option||Single card slot||Single card slot|
|UHS card support||no||UHS-I|
|Connectivity Specs||Canon T3i||Sony A68|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||mini HDMI||micro HDMI|
|Microphone Port||External MIC port||External MIC port|
|Wifi Support||no Wifi||no Wifi|
|Body Specs||Canon T3i||Sony A68|
|Battery Life (CIPA)||440 shots per charge||540 shots per charge|
133 x 100 x 80 mm
(5.2 x 3.9 x 3.1 in)
143 x 104 x 81 mm
(5.6 x 4.1 x 3.2 in)
|Camera Weight||570 g (20.1 oz)||610 g (21.5 oz)|
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