Canon G7 X vs Sony A77
The Canon PowerShot G7 X and the Sony Alpha SLT-A77 are two digital cameras that were officially introduced, respectively, in September 2014 and August 2011. The G7X is a fixed lens compact, while the A77 is a DSLR. The cameras are based on an one-inch (G7X) and an APS-C (A77) sensor. The Canon has a resolution of 20 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 PowerShot G7 X and the Sony Alpha SLT-A77? 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.
Body comparison
The side-by-side display below illustrates the physical size and weight of the Canon G7 X and the Sony A77. 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 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 A77 is considerably larger (141 percent) than the Canon G7 X. It is noteworthy in this context that the A77 is splash and dust-proof, while the G7X does not feature any corresponding weather-sealing.
The above size and weight comparisons are to some extent incomplete and possibly misleading, as the G7X has a lens built in, whereas the A77 is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup.
Concerning battery life, the G7X gets 210 shots out of its Canon NB-13L battery, while the A77 can take 470 images on a single charge of its Sony NP-FM500H power pack.
The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. 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.
# | Camera Model |
Camera Width |
Camera Height |
Camera Depth |
Camera Weight |
Battery Life |
Weather Sealing |
Camera Launch |
Launch Price (USD) |
Street Price |
|
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Canon G7 X | 103 mm | 60 mm | 40 mm | 304 g | 210 | n | Sep 2014 | 699 | ebay.com | |
2. | Sony A77 | 143 mm | 104 mm | 81 mm | 732 g | 470 | Y | Aug 2011 | 1,399 | ebay.com | |
3. | Canon G7 X Mark III | 105 mm | 61 mm | 41 mm | 304 g | 235 | n | Jul 2019 | 749 | amazon.com | |
4. | Canon G7 X Mark II | 106 mm | 61 mm | 42 mm | 319 g | 265 | n | Feb 2016 | 699 | ebay.com | |
5. | Canon G5 X | 112 mm | 76 mm | 44 mm | 353 g | 210 | n | Oct 2015 | 799 | ebay.com | |
6. | Canon G9 X | 98 mm | 58 mm | 31 mm | 209 g | 220 | n | Oct 2015 | 529 | ebay.com | |
7. | Canon M3 | 111 mm | 68 mm | 44 mm | 366 g | 250 | n | Feb 2015 | 679 | ebay.com | |
8. | Canon M10 | 108 mm | 67 mm | 35 mm | 301 g | 255 | n | Oct 2015 | 499 | ebay.com | |
9. | Canon T6i | 132 mm | 101 mm | 78 mm | 555 g | 440 | n | Feb 2015 | 749 | ebay.com | |
10. | Pentax K-3 | 131 mm | 100 mm | 77 mm | 800 g | 560 | Y | Oct 2013 | 1,299 | ebay.com | |
11. | Sony A6500 | 120 mm | 67 mm | 53 mm | 453 g | 350 | Y | Oct 2016 | 1,399 | ebay.com | |
12. | Sony RX100 IV | 102 mm | 58 mm | 41 mm | 298 g | 280 | n | Jun 2015 | 999 | ebay.com | |
13. | Sony A7 II | 127 mm | 96 mm | 60 mm | 599 g | 350 | Y | Nov 2014 | 1,999 | ebay.com | |
14. | Sony A77 II | 143 mm | 104 mm | 81 mm | 647 g | 480 | Y | May 2014 | 1,199 | ebay.com | |
15. | Sony RX100 III | 102 mm | 58 mm | 41 mm | 290 g | 320 | n | May 2014 | 799 | ebay.com | |
16. | Sony RX100 II | 102 mm | 58 mm | 38 mm | 281 g | 350 | n | Jun 2013 | 749 | ebay.com | |
17. | Sony A99 | 147 mm | 111 mm | 78 mm | 812 g | 500 | Y | Sep 2012 | 2,799 | ebay.com | |
Note: 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 G7X was launched at a lower price than the A77, despite having a lens built in. Normally, street prices remain initially close to the MSRP, but after a couple of months, the first discounts appear. 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.
Sensor comparison
The size of the imaging sensor is a crucial determinant of image quality. All other things equal, a large sensor will have larger individual pixel-units that offer better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixels 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.
Of the two cameras under consideration, the Canon G7 X features an one-inch sensor and the Sony A77 an APS-C sensor. The sensor area in the A77 is 216 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.7 and 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
With 24MP, the A77 offers a higher resolution than the G7X (20MP), but the A77 nevertheless has larger individual pixels (pixel pitch of 3.91μm versus 2.41μm for the G7X) due to its larger sensor. However, the G7X is a much more recent model (by 3 years) than the A77, 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 A77 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A77 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 G7 X are 27.4 x 18.2 inches or 69.5 x 46.3 cm for good quality, 21.9 x 14.6 inches or 55.6 x 37.1 cm for very good quality, and 18.2 x 12.2 inches or 46.3 x 30.9 cm for excellent quality prints.
The Canon PowerShot G7 X has a native sensitivity range from ISO 125 to ISO 12800. The corresponding ISO settings for the Sony Alpha SLT-A77 are ISO 100 to ISO 16000, with the possibility to increase the ISO range to 50-25600.
In terms of underlying technology, the G7X is build around a BSI-CMOS sensor, while the A77 uses a CMOS imager. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.
Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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 A77 has a markedly higher DXO score than the G7X (overall score 7 points higher), which will translate into better image quality. The advantage is based on 1 bits higher color depth, 0.5 EV in additional dynamic range, and 0.5 stops in additional low light sensitivity. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
# | Camera Model |
Sensor Class |
Resolution (MP) |
Horiz. Pixels |
Vert. Pixels |
Video Format |
DXO Portrait |
DXO Landscape |
DXO Sports |
DXO Overall |
|
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Canon G7 X | 1-inch | 20.0 | 5472 | 3648 | 1080/60p | 23.0 | 12.7 | 556 | 71 | |
2. | Sony A77 | APS-C | 24.0 | 6000 | 4000 | 1080/60p | 24.0 | 13.2 | 801 | 78 | |
3. | Canon G7 X Mark III | 1-inch | 20.0 | 5472 | 3648 | 4K/30p | 22.2 | 12.4 | 583 | 65 | |
4. | Canon G7 X Mark II | 1-inch | 20.0 | 5472 | 3648 | 1080/60p | 21.8 | 11.9 | 260 | 62 | |
5. | Canon G5 X | 1-inch | 20.0 | 5472 | 3648 | 1080/60p | 21.4 | 12.3 | 471 | 62 | |
6. | Canon G9 X | 1-inch | 20.0 | 5472 | 3648 | 1080/60p | 21.5 | 12.3 | 495 | 63 | |
7. | Canon M3 | APS-C | 24.0 | 6000 | 4000 | 1080/30p | 22.8 | 11.8 | 1169 | 72 | |
8. | Canon M10 | APS-C | 17.9 | 5184 | 3456 | 1080/30p | 22.2 | 11.4 | 753 | 65 | |
9. | Canon T6i | APS-C | 24.0 | 6000 | 4000 | 1080/30p | 22.7 | 12.0 | 919 | 71 | |
10. | Pentax K-3 | APS-C | 24.1 | 6016 | 4000 | 1080/60i | 23.7 | 13.4 | 1216 | 80 | |
11. | Sony A6500 | APS-C | 24.0 | 6000 | 4000 | 4K/30p | 24.5 | 13.7 | 1405 | 85 | |
12. | Sony RX100 IV | 1-inch | 20.0 | 5472 | 3648 | 4K/30p | 22.8 | 12.6 | 591 | 70 | |
13. | Sony A7 II | Full Frame | 24.0 | 6000 | 4000 | 1080/60p | 24.9 | 13.6 | 2449 | 90 | |
14. | Sony A77 II | APS-C | 24.0 | 6000 | 4000 | 1080/60p | 24.4 | 13.4 | 1013 | 82 | |
15. | Sony RX100 III | 1-inch | 20.0 | 5472 | 3648 | 1080/60p | 22.4 | 12.3 | 495 | 67 | |
16. | Sony RX100 II | 1-inch | 20.0 | 5472 | 3648 | 1080/60p | 22.5 | 12.4 | 483 | 67 | |
17. | Sony A99 | Full Frame | 24.0 | 6000 | 4000 | 1080/60p | 25.0 | 14.0 | 1555 | 89 | |
Note: DXO values in italics represent estimates based on sensor size and age. |
Many modern cameras are not only capable of taking still images, but also of capturing video footage. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, and both provide the same movie specifications (1080/60p).
Feature comparison
Apart from body and sensor, cameras can and do differ across a variety of features. For example, the A77 has an electronic viewfinder (2359k dots), which can be very helpful when shooting in bright sunlight. In contrast, the G7X relies on live view and the rear LCD for framing. The table below summarizes some of the other core capabilities of the Canon G7 X and Sony A77 in connection with corresponding information for a sample of similar cameras.
# | Camera Model |
Viewfinder (Type or 000 dots) |
Control Panel (yes/no) |
LCD Specifications (inch/000 dots) |
LCD Attach- ment |
Touch Screen (yes/no) |
Max Shutter Speed * |
Max Shutter Flaps * |
Built-in Flash (yes/no) |
Built-in Image Stab |
|
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Canon G7 X | none | n | 3.0 / 1040 | tilting | Y | 1/2000s | 6.5/s | Y | Y | |
2. | Sony A77 | 2359 | Y | 3.0 / 921 | full-flex | n | 1/8000s | 12.0/s | Y | Y | |
3. | Canon G7 X Mark III | none | n | 3.0 / 1040 | tilting | Y | 1/2000s | 30/s | Y | Y | |
4. | Canon G7 X Mark II | none | n | 3.0 / 1040 | tilting | Y | 1/2000s | 8.0/s | Y | Y | |
5. | Canon G5 X | 2360 | n | 3.0 / 1040 | swivel | Y | 1/2000s | 5.9/s | Y | Y | |
6. | Canon G9 X | none | n | 3.0 / 1040 | fixed | Y | 1/2000s | 6.0/s | Y | Y | |
7. | Canon M3 | optional | n | 3.0 / 1040 | tilting | Y | 1/4000s | 4.2/s | Y | n | |
8. | Canon M10 | none | n | 3.0 / 1040 | tilting | Y | 1/4000s | 4.6/s | Y | n | |
9. | Canon T6i | optical | n | 3.0 / 1040 | swivel | Y | 1/4000s | 5.0/s | Y | n | |
10. | Pentax K-3 | optical | Y | 3.2 / 1037 | fixed | n | 1/8000s | 8.3/s | Y | Y | |
11. | Sony A6500 | 2359 | n | 3.0 / 922 | tilting | Y | 1/4000s | 11.0/s | Y | Y | |
12. | Sony RX100 IV | 2359 | n | 3.0 / 1228 | tilting | n | 1/2000s | 16.0/s | Y | Y | |
13. | Sony A7 II | 2400 | n | 3.0 / 1230 | tilting | n | 1/8000s | 5.0/s | n | Y | |
14. | Sony A77 II | 2359 | Y | 3.0 / 1229 | full-flex | n | 1/8000s | 12.0/s | Y | Y | |
15. | Sony RX100 III | 1440 | n | 3.0 / 1229 | tilting | n | 1/2000s | 10.0/s | Y | Y | |
16. | Sony RX100 II | optional | n | 3.0 / 1229 | tilting | n | 1/2000s | 10.0/s | Y | Y | |
17. | Sony A99 | 2359 | Y | 3.0 / 1229 | full-flex | n | 1/8000s | 6.0/s | n | Y | |
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one. |
One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The G7X has a touchscreen, while the A77 has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.
Both cameras have an articulated rear screen that can be turned to be front-facing. This feature will be particularly appreciated by vloggers and photographers who are interested in taking selfies.The Canon G7 X has an intervalometer built-in. This enables the photographer to capture time lapse sequences, such as flower blooming, a sunset or moon rise, without purchasing an external camera trigger and related software.
The G7X writes its imaging data to SDXC cards, while the A77 uses SDXC or Memory Stick PRO Duo cards. Both cameras can use UHS-I cards, which provide for Ultra High Speed data transfer of up to 104 MB/s.
Connectivity comparison
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 PowerShot G7 X and Sony Alpha SLT-A77 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
# | Camera Model |
Hotshoe Port |
Internal Mic / Speaker |
Microphone Port |
Headphone Port |
HDMI Port |
USB Port |
WiFi Support |
NFC Support |
Bluetooth Support |
|
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Canon G7 X | - | stereo / mono | - | - | micro | 2.0 | Y | Y | - | |
2. | Sony A77 | Y | stereo / mono | Y | - | mini | 2.0 | - | - | - | |
3. | Canon G7 X Mark III | - | stereo / mono | Y | - | micro | 3.1 | Y | - | Y | |
4. | Canon G7 X Mark II | - | stereo / mono | - | - | micro | 2.0 | Y | Y | - | |
5. | Canon G5 X | Y | stereo / mono | - | - | mini | 2.0 | Y | Y | - | |
6. | Canon G9 X | - | stereo / mono | - | - | micro | 2.0 | Y | Y | - | |
7. | Canon M3 | Y | stereo / mono | Y | - | mini | 2.0 | Y | Y | - | |
8. | Canon M10 | - | stereo / mono | - | - | mini | 2.0 | Y | Y | - | |
9. | Canon T6i | Y | stereo / mono | Y | - | mini | 2.0 | Y | Y | - | |
10. | Pentax K-3 | Y | mono / mono | Y | Y | mini | 3.0 | - | - | - | |
11. | Sony A6500 | Y | stereo / mono | Y | - | micro | 2.0 | Y | Y | - | |
12. | Sony RX100 IV | - | stereo / mono | - | - | micro | 2.0 | Y | Y | - | |
13. | Sony A7 II | Y | stereo / mono | Y | Y | micro | 2.0 | Y | Y | - | |
14. | Sony A77 II | Y | stereo / mono | Y | - | mini | 2.0 | Y | Y | - | |
15. | Sony RX100 III | - | stereo / mono | - | - | micro | 2.0 | Y | Y | - | |
16. | Sony RX100 II | Y | stereo / mono | - | - | micro | 2.0 | Y | Y | - | |
17. | Sony A99 | Y | stereo / mono | Y | Y | mini | 2.0 | - | - | - |
It is notable that the G7X offers wifi support, while the A77 does not. Wifi can be a very convenient means to transfer image data to an off-camera location.
Studio photographers will appreciate that the Sony A77 (unlike the G7X) 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 A77 has an internal geolocalization sensor and can record GPS coordinates in its EXIF data.
Both the G7X and the A77 have been discontinued, but can regularly be found used on ebay. The A77 was replaced by the Sony A77 II, while the G7X was followed by the Canon G7 X Mark II. Further information on the features and operation of the G7X and A77 can be found, respectively, in the Canon G7 X Manual (free pdf) or the online Sony A77 Manual.
Review summary
So how do things add up? Is the Canon G7 X better than the Sony A77 or vice versa? Below is a summary of the relative strengths of each of the two contestants.
Advantages of the Canon PowerShot G7 X:
- More detailed LCD: Has a higher resolution rear screen (1040k vs 921k dots).
- Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- Ready to shoot: Comes with a built-in lens, while the A77 requires a separate lens.
- More compact: Is smaller (103x60mm vs 143x104mm) and thus needs less room in the bag.
- Less heavy: Is lighter even though it comes with a built-in lens (unlike the A77).
- 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.
- More affordable: Was introduced at a lower price, despite coming with a built-in lens.
- More modern: Reflects 3 years of technical progress since the A77 launch.
Reasons to prefer the Sony Alpha SLT-A77:
- More detail: Has more megapixels (24 vs 20MP), which boosts linear resolution by 10%.
- Better image quality: Scores markedly higher (7 points) in the DXO overall evaluation.
- Better low-light sensitivity: Can shoot in dim conditions (0.5 stops ISO advantage).
- Better sound: Can connect to an external microphone for higher quality sound recording.
- Easier framing: Has an electronic viewfinder for image composition and settings control.
- Easier setting verification: Features a control panel on top to check shooting parameters.
- More flexible LCD: Has a full-flex screen for odd-angle shots in portrait or landscape orientation.
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/2000s) to freeze action.
- Faster burst: Shoots at higher frequency (12 vs 6.5 flaps/sec) to capture the decisive moment.
- More flexible: Makes it possible to change lenses and thus to use specialty optics.
- Longer lasting: Gets more shots (470 versus 210) out of a single battery charge.
- Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
- Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
- Easier geotagging: Features an internal GPS sensor to log localization data.
- Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
- More heavily discounted: Has been around for much longer (launched in August 2011).
If the count of relative strengths (bullet points above) is taken as a measure, the A77 is the clear winner of the contest (16 : 10 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 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 G7 X and the Sony A77 place the cameras among the top in their class? Find out in the latest Best Travel-Zoom Camera and Best DSLR Camera listings 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 remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the G7X or the A77. 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.
Expert reviews
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], digitalcameraworld [DCW], 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.
# | Camera Model |
AP score |
CL score |
DCW score |
DPR score |
EPZ score |
PB score |
Camera Launch |
Launch Price (USD) |
Street Price |
|
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Canon G7 X | 4/5 | + + | .. | 77/100 | 4.5/5 | 4.5/5 | Sep 2014 | 699 | ebay.com | |
2. | Sony A77 | 5/5 | 91/100 | .. | 81/100 | .. | 5/5 | Aug 2011 | 1,399 | ebay.com | |
3. | Canon G7 X Mark III | .. | + + | 4/5 | 81/100 | 4/5 | .. | Jul 2019 | 749 | amazon.com | |
4. | Canon G7 X Mark II | 4.5/5 | + + | .. | 81/100 | 4.5/5 | 4.5/5 | Feb 2016 | 699 | ebay.com | |
5. | Canon G5 X | 5/5 | + + | .. | 78/100 | 4.5/5 | 4.5/5 | Oct 2015 | 799 | ebay.com | |
6. | Canon G9 X | 3.5/5 | + + | .. | .. | 4.5/5 | 4.5/5 | Oct 2015 | 529 | ebay.com | |
7. | Canon M3 | 4/5 | o | .. | 75/100 | 4.5/5 | 4/5 | Feb 2015 | 679 | ebay.com | |
8. | Canon M10 | .. | .. | .. | .. | .. | 4/5 | Oct 2015 | 499 | ebay.com | |
9. | Canon T6i | 5/5 | .. | .. | 75/100 | 4.5/5 | 4.5/5 | Feb 2015 | 749 | ebay.com | |
10. | Pentax K-3 | 4/5 | .. | .. | 83/100 | 5/5 | 5/5 | Oct 2013 | 1,299 | ebay.com | |
11. | Sony A6500 | 5/5 | + + | 3.5/5 | 85/100 | 4.5/5 | 4.5/5 | Oct 2016 | 1,399 | ebay.com | |
12. | Sony RX100 IV | 4.5/5 | + + | .. | 85/100 | 4/5 | 4.5/5 | Jun 2015 | 999 | ebay.com | |
13. | Sony A7 II | 5/5 | + | 4/5 | 82/100 | 4.5/5 | 5/5 | Nov 2014 | 1,999 | ebay.com | |
14. | Sony A77 II | 4/5 | .. | .. | 80/100 | 4.5/5 | 5/5 | May 2014 | 1,199 | ebay.com | |
15. | Sony RX100 III | 5/5 | + + | .. | 82/100 | 4.5/5 | 5/5 | May 2014 | 799 | ebay.com | |
16. | Sony RX100 II | 5/5 | + + | .. | 79/100 | 4.5/5 | 4.5/5 | Jun 2013 | 749 | ebay.com | |
17. | Sony A99 | 5/5 | .. | .. | 84/100 | 4.5/5 | 4.5/5 | Sep 2012 | 2,799 | ebay.com | |
Note: (+ +) 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. Hence, a score should always be seen in the context of the camera's market launch date and its price, and comparisons of ratings among very different cameras or across long time periods 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 would like to check on the differences and similarities of other camera models, just make your choice using the following search menu. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.
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- Canon G5 X Mark II vs Canon G7 X
- Canon G5 X Mark II vs Sony A77
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Specifications: Canon G7 X vs Sony A77
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 G7 X | Sony A77 |
---|---|---|
Camera Type | Fixed lens compact camera | Digital single lens reflex |
Camera Lens | 24-100mm f/1.8-2.8 | Sony A mount lenses |
Launch Date | September 2014 | August 2011 |
Launch Price | USD 699 | USD 1,399 |
Sensor Specs | Canon G7 X | Sony A77 |
Sensor Technology | BSI-CMOS | CMOS |
Sensor Format | 1" Sensor | APS-C Sensor |
Sensor Size | 13.2 x 8.8 mm | 23.5 x 15.6 mm |
Sensor Area | 116.16 mm2 | 366.6 mm2 |
Sensor Diagonal | 15.9 mm | 28.2 mm |
Crop Factor | 2.7x | 1.5x |
Sensor Resolution | 20 Megapixels | 24 Megapixels |
Image Resolution | 5472 x 3648 pixels | 6000 x 4000 pixels |
Pixel Pitch | 2.41 μm | 3.91 μm |
Pixel Density | 17.18 MP/cm2 | 6.55 MP/cm2 |
Moiré control | Anti-Alias filter | Anti-Alias filter |
Movie Capability | 1080/60p Video | 1080/60p Video |
ISO Setting | 125 - 12,800 ISO | 100 - 16,000 ISO |
ISO Boost | no Enhancement | 50 - 25,600 ISO |
Image Processor | DIGIC 6 | BIONZ X |
DXO Sensor Quality (score) | 71 | 78 |
DXO Color Depth (bits) | 23.0 | 24.0 |
DXO Dynamic Range (EV) | 12.7 | 13.2 |
DXO Low Light (ISO) | 556 | 801 |
Screen Specs | Canon G7 X | Sony A77 |
Viewfinder Type | no viewfinder | Electronic viewfinder |
Viewfinder Field of View | 100% | |
Viewfinder Magnification | 0.73x | |
Viewfinder Resolution | 2359k dots | |
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 | 921k dots |
LCD Attachment | Tilting screen | Fully flexible screen |
Touch Input | Touchscreen | no Touchscreen |
Shooting Specs | Canon G7 X | Sony A77 |
Focus System | Contrast-detect AF | Phase-detect AF |
Manual Focusing Aid | Focus Peaking | Focus Peaking |
Max Shutter Speed (mechanical) | 1/2000s | 1/8000s |
Continuous Shooting | 6.5 shutter flaps/s | 12 shutter flaps/s |
Time-Lapse Photography | Intervalometer built-in | no Intervalometer |
Image Stabilization | Lens-based stabilization | In-body stabilization |
Fill Flash | Built-in Flash | Built-in Flash |
Storage Medium | SDXC cards | MS or SDXC cards |
Single or Dual Card Slots | Single card slot | Single card slot |
UHS card support | UHS-I | UHS-I |
Connectivity Specs | Canon G7 X | Sony A77 |
External Flash | no Hotshoe | Hotshoe |
Studio Flash | no PC Sync | PC Sync socket |
USB Connector | USB 2.0 | USB 2.0 |
HDMI Port | micro HDMI | mini HDMI |
Microphone Port | no MIC socket | External MIC port |
Wifi Support | Wifi built-in | no Wifi |
Near-Field Communication | NFC built-in | no NFC |
Geotagging | no internal GPS | GPS built-in |
Body Specs | Canon G7 X | Sony A77 |
Environmental Sealing | not weather sealed | Weathersealed body |
Battery Type | Canon NB-13L | Sony NP-FM500H |
Battery Life (CIPA) | 210 shots per charge | 470 shots per charge |
Body Dimensions |
103 x 60 x 40 mm (4.1 x 2.4 x 1.6 in) |
143 x 104 x 81 mm (5.6 x 4.1 x 3.2 in) |
Camera Weight | 304 g (10.7 oz) | 732 g (25.8 oz) |
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