Canon 7D vs Sony A58
The Canon EOS 7D and the Sony Alpha SLT-A58 are two digital cameras that were officially introduced, respectively, in September 2009 and February 2013. 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 19.8 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
|Canon 7D||Sony A58|
|Digital single lens reflex||Digital single lens reflex|
|Canon EF mount lenses||Sony A mount lenses|
|17.9 MP, APS-C Sensor||19.8 MP, APS-C Sensor|
|1080/30p Video||1080/60i Video|
|ISO 100-6,400 (100 - 12,800)||ISO 100-16,000 (100 - 25,600)|
|Optical viewfinder||Electronic viewfinder (1440k dots)|
|3.0 LCD, 920k dots||2.7 LCD, 460k dots|
|Fixed screen (not touch-sensitive)||Tilting screen (not touch-sensitive)|
|8 shutter flaps per second||5 shutter flaps per second|
|Lens stabilization only||In-body stabilization|
|Weathersealed body||not weather sealed|
|800 shots per battery charge||690 shots per battery charge|
|148 x 111 x 74 mm, 860 g||129 x 95 x 78 mm, 492 g|
Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS 7D and the Sony Alpha SLT-A58? 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 7D and the Sony A58. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All size 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 A58 is notably smaller (25 percent) than the Canon 7D. Moreover, the A58 is substantially lighter (43 percent) than the 7D. It is worth mentioning in this context that the 7D is splash and dust resistant, while the A58 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 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, just use the right or left arrows in the table to switch to the respective camera. Alternatively, you can also navigate to the CAM-parator app and make your selection from the full list of cameras there.
|Canon 7D||5.8 in||4.4 in||2.9 in||30.3 oz||800||Y||Sep 2009||1,699|
|Sony A58||5.1 in||3.7 in||3.1 in||17.4 oz||690||n||Feb 2013||599|
|Canon 7D II||5.9 in||4.4 in||3.1 in||32.1 oz||670||Y||Sep 2014||1,799|
|Canon 70D||5.5 in||4.1 in||3.1 in||26.6 oz||920||Y||Jul 2013||1,199|
|Canon T5i||5.2 in||3.9 in||3.1 in||20.5 oz||440||n||Mar 2013||649|
|Canon 60D||5.7 in||4.2 in||3.1 in||26.6 oz||1100||Y||Aug 2010||1,399|
|Canon T2i||5.1 in||3.9 in||2.4 in||18.7 oz||440||n||Feb 2010||699|
|Canon T1i||5.1 in||3.9 in||2.4 in||18.3 oz||400||n||Mar 2009||799|
|Canon 5D Mark II||6.0 in||4.5 in||3.0 in||30.0 oz||850||Y||Sep 2008||3,499|
|Canon 50D||5.7 in||4.3 in||2.9 in||29.0 oz||800||Y||Aug 2008||1,299|
|Canon 30D||5.7 in||4.2 in||2.9 in||27.7 oz||750||n||Feb 2006||1,399|
|Canon 20D||5.7 in||4.2 in||2.8 in||27.2 oz||700||n||Aug 2004||1,499|
|Nikon D3200||4.9 in||3.8 in||3.0 in||17.8 oz||540||n||Apr 2012||599|
|Nikon D7000||5.2 in||4.1 in||3.0 in||27.5 oz||1050||Y||Sep 2010||1,499|
|Sony A68||5.6 in||4.1 in||3.2 in||21.5 oz||540||n||Nov 2015||699|
|Sony A5100||4.3 in||2.5 in||1.4 in||10.0 oz||400||n||Aug 2014||549|
|Sony A3000||5.0 in||3.6 in||3.3 in||14.5 oz||470||n||Aug 2013||329|
Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
(1) Number of images that can be taken on a full battery charge according to the CIPA-standard; (2) Official announcement.
Any camera decision will obviously take relative prices into account. 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 A58 was launched at a markedly lower price (by 65 percent) than the 7D, 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. 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 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 A58 is 11 percent bigger. As a result of these sensor size differences, the cameras have format factors, respectively, of 1.6 (7D) and 1.5. 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 19.8MP, the A58 offers a higher resolution than the 7D (17.9MP), but the A58 nevertheless has the same individual pixel size (pixel pitch of 4.31μm) as the 7D due to its larger sensor. Moreover, the A58 is a much more recent model (by 3 years and 5 months) than the 7D, 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 A58 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A58 for good quality output (200 dots per inch) amounts to 27.3 x 18.2 inches or 69.3 x 46.1 cm, for very good quality (250 dpi) 21.8 x 14.5 inches or 55.4 x 36.9 cm, and for excellent quality (300 dpi) 18.2 x 12.1 inches or 46.2 x 30.8 cm. The corresponding values for the Canon 7D 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 Canon EOS 7D 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-A58 are ISO 100 to ISO 16000, with the possibility to increase the ISO range to 100-25600.
Consistent information on actual sensor performance is available from DXO Mark for many cameras. This service assesses and scores the color depth ("DXO Portrait"), dynamic range ("DXO Landscape"), and low-light sensitivity ("DXO Sports") of camera sensors, and also publishes an overall camera score. Of the two cameras under consideration, the A58 has a markedly higher DXO score than the 7D (overall score 8 points higher), which will translate into better image quality. The advantage is based on 1.3 bits higher color depth, 0.8 EV in additional dynamic range, and 0.2 stops of reduced low light sensitivity. The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.
|Canon 7D II||APS-C||20.0||5472||3648||1080/60p||22.4||11.8||1082||70|
|Canon 5D Mark II||Full Frame||21.0||5616||3744||1080/30p||23.7||11.9||1815||79|
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 A58 provides a faster frame rate than the 7D. 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 A58 has an electronic viewfinder (1440k dots), while the 7D 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 viewfinders of both cameras offer the same field of view (100%), but the viewfinder of the 7D has a higher magnification than the one of the A58 (0.63x vs 0.57x), 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 7D and Sony A58 along with similar information for a selection of comparators.
|Canon 7D II||optical||Y||3.0||1040||fixed||n||1/8000s||10.0||Y||n|
|Canon 5D Mark II||optical||Y||3.0||920||fixed||n||1/8000s||3.9||n||n|
One feature that is present on the 7D, but is missing on the A58 is a top-level LCD. While being, of course, smaller than the rear screen, the control panel conveys some of the essential shooting information and can be convenient for quick and easy settings verification.
The 7D writes its imaging data to Compact Flash cards, while the A58 uses SDXC or Memory Stick PRO Duo 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 7D and Sony Alpha SLT-A58 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
|Canon 7D II||Y||stereo||mono||Y||Y||mini||3.0||-||-||-|
|Canon 5D Mark II||Y||mono||mono||Y||-||mini||2.0||-||-||-|
Studio photographers will appreciate that the Canon 7D (unlike the A58) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
Both the 7D and the A58 have been discontinued, but can regularly be found used on eBay. The 7D was replaced by the Canon 7D Mark II, while the A58 was followed by the Sony A68. 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 what conclusions can be drawn? Is there a clear favorite between the Canon 7D and the Sony A58? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.
Advantages of the Canon EOS 7D:
- Brighter framing: Features an optical viewfinder for clear, lag-free composition.
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.63x vs 0.57x).
- Easier setting verification: Features an LCD display on top to control shooting parameters.
- 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 (920k vs 460k dots).
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
- Faster burst: Shoots at higher frequency (8 vs 5 flaps/sec) to capture the decisive moment.
- Longer lasting: Can take more shots (800 versus 690) on a single battery charge.
- Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
- Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
- More heavily discounted: Has been available for much longer (launched in September 2009).
Arguments in favor of the Sony Alpha SLT-A58:
- More detail: Has more megapixels (19.8 vs 17.9MP), which boosts linear resolution by 5%.
- Better image quality: Scores markedly higher (8 points) in the DXO overall evaluation.
- Richer colors: Generates noticeably more natural colors (1.3 bits more color depth).
- More dynamic range: Captures a broader range of light and dark details (0.8 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 flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
- More compact: Is smaller (129x95mm vs 148x111mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 368g or 43 percent) and is thus easier to take along.
- Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
- More affordable: Was introduced into a lower priced category (65 percent cheaper at launch).
- More modern: Reflects 3 years and 5 months of technical progress since the 7D launch.
If the number of relative strengths (bullet points above) is taken as a guide, the A58 comes out slightly ahead of the 7D (12 : 11 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 7D and the Sony A58 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 partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the 7D or the A58. 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 7D||+ +||84/100||4.5/5||5/5||4.5/5||Sep 2009||1,699|
|Sony A58||..||..||4.5/5||4.5/5||4.5/5||Feb 2013||599|
|Canon 7D II||+||84/100||4/5||5/5||4.5/5||Sep 2014||1,799|
|Canon 70D||+ +||83/100||4.5/5||4.5/5||5/5||Jul 2013||1,199|
|Canon T5i||..||76/100||4.5/5||4.5/5||4.5/5||Mar 2013||649|
|Canon 60D||+||79/100||4/5||5/5||4.5/5||Aug 2010||1,399|
|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|
|Canon 5D Mark II||91/100||79/100||4/5||5/5||..||Sep 2008||3,499|
|Canon 50D||+ +||+ +||4.5/5||5/5||4.5/5||Aug 2008||1,299|
|Canon 30D||+ +||+ +||o||o||..||Feb 2006||1,399|
|Canon 20D||..||+ +||..||o||..||Aug 2004||1,499|
|Nikon D3200||+ +||73/100||4.5/5||4.5/5||4.5/5||Apr 2012||599|
|Nikon D7000||..||80/100||4.5/5||5/5||4.5/5||Sep 2010||1,499|
|Sony A68||..||..||4/5||..||4/5||Nov 2015||699|
|Sony A5100||+||..||4.5/5||4.5/5||5/5||Aug 2014||549|
|Sony A3000||+||..||4/5||4.5/5||4/5||Aug 2013||329|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
The above review scores should be interpreted with care, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. Also, please note that some of the review sites have changed their methodology and reporting over time.
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.
- Canon 7D II vs Canon M
- Canon 7D II vs Fujifilm X-T20
- Canon 7D II vs Panasonic LX100
- Canon 7D II vs Sony RX10 II
- Canon 7D vs Canon G7 X Mark III
- Canon 7D vs Canon XT
- Canon 7D vs Sony A7R III
- Canon 7D vs Sony RX100 III
- Canon T2i vs Sony A58
- Nikon 1 V1 vs Sony A58
- Olympus E-PL7 vs Sony A58
- Panasonic G90 vs Sony A58
Specifications: Canon 7D vs Sony A58
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 7D||Sony A58|
|Camera Type||Digital single lens reflex||Digital single lens reflex|
|Camera Lens||Canon EF mount lenses||Sony A mount lenses|
|Launch Date||September 2009||February 2013|
|Launch Price||USD 1,699||USD 599|
|Sensor Specs||Canon 7D||Sony A58|
|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||19.8 Megapixels|
|Image Resolution||5184 x 3456 pixels||5456 x 3632 pixels|
|Pixel Pitch||4.31 μm||4.31 μm|
|Pixel Density||5.39 MP/cm2||5.41 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||1080/30p Video||1080/60i Video|
|ISO Setting||100 - 6,400 ISO||100 - 16,000 ISO|
|ISO Boost||100 - 12,800 ISO||100 - 25,600 ISO|
|Image Processor||DIGIC 4 (Dual)||BIONZ|
|DXO Sensor Quality (score)||66||74|
|DXO Color Depth (bits)||22.0||23.3|
|DXO Dynamic Range (EV)||11.7||12.5|
|DXO Low Light (ISO)||854||753|
|Screen Specs||Canon 7D||Sony A58|
|Viewfinder Type||Optical viewfinder||Electronic viewfinder|
|Viewfinder Field of View||100%||100%|
|Viewfinder Resolution||1440k dots|
|Top-Level Screen||Control Panel||no Top Display|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||2.7inch|
|LCD Resolution||920k dots||460k dots|
|LCD Attachment||Fixed screen||Tilting screen|
|Shooting Specs||Canon 7D||Sony A58|
|Focus System||Phase-detect AF||Phase-detect AF|
|Manual Focusing Aid||no Peaking Feature||Focus Peaking|
|Max Shutter Speed (mechanical)||1/8000s||1/4000s|
|Continuous Shooting||8 shutter flaps/s||5 shutter flaps/s|
|Shutter Life Expectancy||150 000 actuations||100 000 actuations|
|Image Stabilization||Lens stabilization only||In-body stabilization|
|Fill Flash||Build-in Flash||Build-in Flash|
|Storage Medium||CF cards||MS or SDXC cards|
|Second Storage Option||Single card slot||Single card slot|
|Connectivity Specs||Canon 7D||Sony A58|
|Studio Flash||PC Sync socket||no PC Sync|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||mini HDMI||mini HDMI|
|Microphone Port||External MIC port||External MIC port|
|Wifi Support||no Wifi||no Wifi|
|Body Specs||Canon 7D||Sony A58|
|Environmental Sealing||Weathersealed body||not weather sealed|
|Battery Life (CIPA)||800 shots per charge||690 shots per charge|
148 x 111 x 74 mm
(5.8 x 4.4 x 2.9 in)
129 x 95 x 78 mm
(5.1 x 3.7 x 3.1 in)
|Camera Weight||860 g (30.3 oz)||492 g (17.4 oz)|
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