Canon G12 vs SX420
The Canon PowerShot G12 and the Canon PowerShot SX420 IS are two digital cameras that were officially introduced, respectively, in September 2010 and January 2016. Both the G12 and the SX420 are fixed lens compact cameras that are based on a 1/1.7-inch (G12) and a 1/2.3-inch (SX420) sensor. The G12 has a resolution of 10 megapixels, whereas the SX420 provides 19.9 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 G12 and the Canon PowerShot SX420 IS? 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 G12 and the Canon SX420. 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.
The SX420 can be obtained in two different colors (black, red), while the G12 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 Canon SX420 is notably smaller (16 percent) than the Canon G12. Moreover, the SX420 is markedly lighter (19 percent) than the G12. In this context, it is worth noting that neither the G12 nor the SX420 are weather-sealed.
The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. 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 G12||112 mm||76 mm||48 mm||401 g||370||n||Sep 2010||499|
|2.||Canon SX420||104 mm||69 mm||85 mm||325 g||195||n||Jan 2016||299|
|3.||Canon SX430||104 mm||69 mm||85 mm||323 g||195||n||Jan 2017||299|
|4.||Canon SX730||110 mm||64 mm||40 mm||300 g||250||n||Apr 2017||399|
|5.||Canon SX410||104 mm||69 mm||85 mm||325 g||185||n||Feb 2015||279|
|6.||Canon SX610||105 mm||61 mm||27 mm||191 g||270||n||Jan 2015||249|
|7.||Canon SX710||113 mm||66 mm||35 mm||269 g||230||n||Jan 2015||349|
|8.||Canon G16||109 mm||76 mm||40 mm||356 g||360||n||Aug 2013||549|
|9.||Canon G15||107 mm||76 mm||40 mm||352 g||350||n||Sep 2012||499|
|10.||Canon SX50||123 mm||87 mm||106 mm||595 g||315||n||Sep 2012||429|
|11.||Fujifilm X10||117 mm||70 mm||57 mm||350 g||270||n||Sep 2011||599|
|12.||Nikon P7800||119 mm||78 mm||50 mm||399 g||350||n||Sep 2013||549|
|13.||Olympus E-450||130 mm||91 mm||53 mm||440 g||500||n||Mar 2009||499|
|14.||Panasonic FZ150||124 mm||82 mm||92 mm||528 g||410||n||Aug 2011||499|
|15.||Panasonic G10||124 mm||84 mm||74 mm||388 g||380||n||Mar 2010||499|
|16.||Panasonic G2||124 mm||84 mm||74 mm||428 g||360||n||Mar 2010||599|
|17.||Panasonic LX5||110 mm||65 mm||43 mm||271 g||400||n||Jul 2010||499|
|Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.|
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 SX420 was launched at a markedly lower price (by 40 percent) than the G12, 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. 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 G12 features a 1/1.7-inch sensor and the Canon SX420 a 1/2.3-inch sensor. The sensor area in the SX420 is 35 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 4.6 and 5.6. Both cameras feature a native aspect ratio (sensor width to sensor height) of 4:3.
Technology-wise, the SX420 uses a more advanced image processing engine (DIGIC 4+) than the G12 (DIGIC 4), with benefits for noise reduction, color accuracy, and processing speed.
Despite having a smaller sensor, the SX420 offers a higher resolution of 19.9 megapixels, compared with 10 MP of the G12. This megapixels advantage comes at the cost of a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 1.19μm versus 2.07μm for the G12). However, it should be noted that the SX420 is much more recent (by 5 years and 3 months) than the G12, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently. Coming back to sensor resolution, it should be mentioned that the SX420 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
The resolution advantage of the Canon SX420 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the SX420 for good quality output (200 dots per inch) amounts to 25.8 x 19.3 inches or 65.4 x 49.1 cm, for very good quality (250 dpi) 20.6 x 15.5 inches or 52.3 x 39.3 cm, and for excellent quality (300 dpi) 17.2 x 12.9 inches or 43.6 x 32.7 cm. The corresponding values for the Canon G12 are 18.2 x 13.7 inches or 46.3 x 34.7 cm for good quality, 14.6 x 10.9 inches or 37.1 x 27.8 cm for very good quality, and 12.2 x 9.1 inches or 30.9 x 23.2 cm for excellent quality prints.
The Canon PowerShot G12 has a native sensitivity range from ISO 80 to ISO 3200, which can be extended to ISO 80-12800. The corresponding ISO settings for the Canon PowerShot SX420 IS are ISO 100 to ISO 1600 (no boost).
For many cameras, data on sensor performance has been reported by DXO Mark. 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. The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.
| DXO |
|13.||Olympus E-450||Four Thirds||10.0||3648||2736||none||21.5||10.5||512||56|
|15.||Panasonic G10||Four Thirds||12.0||4000||3000||720/30p||21.2||10.1||411||52|
|16.||Panasonic G2||Four Thirds||12.0||4000||3000||720/30p||21.2||10.3||493||53|
Many modern cameras are not only capable of taking still images, but can also record movies. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the SX420 provides a faster frame rate than the G12. It can shoot movie footage at 720/25p, while the G12 is limited to 720/24p.
Apart from body and sensor, cameras can and do differ across a variety of features. For example, the G12 has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the SX420 relies on live view and the rear LCD for framing. The adjacent table lists some of the other core features of the Canon G12 and Canon SX420 along with similar information for a selection of comparators.
Both the G12 and the SX420 have zoom lenses built in. The G12 has a 28-140mm f/2.8-4.5 optic and the SX420 offers a 24-1008mm f/3.5-6.6 (focal lengths in full frame equivalent terms). Hence, the SX420 provides a wider angle of view at the short end, as well as more tele-photo reach at the long end than the G12. The G12 offers the faster maximum aperture.
Concerning the storage of imaging data, both the G12 and the SX420 write their files to SDXC 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 PowerShot G12 and Canon PowerShot SX420 IS and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
| NFC |
It is notable that the G12 has a hotshoe, while the SX420 does not. This socket makes it possible to easily attach optional accessories, such as an external flash gun.
Both the G12 and the SX420 have been discontinued, but can regularly be found used on eBay. The G12 was replaced by the Canon G15, while the SX420 was followed by the Canon SX430. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Canon website.
So what conclusions can be drawn? Is there a clear favorite between the Canon G12 and the Canon SX420? Which camera is better? The listing below highlights the relative strengths of the two models.
Advantages of the Canon PowerShot G12:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- Easier framing: Has an optical viewfinder for image composition and settings control.
- More detailed LCD: Has a higher resolution rear screen (461k vs 230k dots).
- More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
- Faster burst: Shoots at higher frequency (1.1 vs 0.5 flaps/sec) to capture the decisive moment.
- Better light gathering: Has a lens with a wider maximum aperture (f/2.8 vs f/3.5).
- Longer lasting: Can take more shots (370 versus 195) on a single battery charge.
- Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
- More heavily discounted: Has been available for much longer (launched in September 2010).
Arguments in favor of the Canon PowerShot SX420 IS:
- More detail: Has more megapixels (19.9 vs 10MP), which boosts linear resolution by 41%.
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- Better jpgs: Has a more modern image processing engine (DIGIC 4+ vs DIGIC 4).
- Better video: Provides higher movie framerates (720/25p versus 720/24p).
- Larger screen: Has a bigger rear LCD (3.0" vs 2.8") for image review and settings control.
- Wider view: Has a wider-angle lens that facilitates landscape or interior shots.
- More tele-reach: Has a longer tele-lens for perspective compression and subject magnification.
- More compact: Is smaller (104x69mm vs 112x76mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 76g or 19 percent) and is thus easier to take along.
- 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 into a lower priced category (40 percent cheaper at launch).
- More modern: Reflects 5 years and 3 months of technical progress since the G12 launch.
If the number of relative strengths (bullet points above) is taken as a guide, the SX420 is the clear winner of the contest (13 : 9 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 G12 and the Canon SX420 place the cameras among the top in their class? Find out in the latest Best Travel-Zoom Camera and Best Superzoom 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 partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the G12 or the SX420. 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 (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 G12||4/5||+||73/100||4.5/5||4.5/5||Sep 2010||499|
|2.||Canon SX420||..||..||..||..||3/5||Jan 2016||299|
|3.||Canon SX430||..||..||..||3.5/5||3.5/5||Jan 2017||299|
|4.||Canon SX730||..||+||..||4/5||4/5||Apr 2017||399|
|5.||Canon SX410||..||o||..||..||..||Feb 2015||279|
|6.||Canon SX610||..||..||..||4/5||4/5||Jan 2015||249|
|7.||Canon SX710||..||+||..||4/5||3.5/5||Jan 2015||349|
|8.||Canon G16||4/5||+||..||4.5/5||4.5/5||Aug 2013||549|
|9.||Canon G15||4/5||+||76/100||4.5/5||4.5/5||Sep 2012||499|
|10.||Canon SX50||3/5||+ +||72/100||4.5/5||4.5/5||Sep 2012||429|
|11.||Fujifilm X10||..||..||76/100||4/5||4.5/5||Sep 2011||599|
|12.||Nikon P7800||3/5||..||..||4/5||4.5/5||Sep 2013||549|
|13.||Olympus E-450||..||..||..||4/5||4/5||Mar 2009||499|
|14.||Panasonic FZ150||3/5||+ +||76/100||4/5||4.5/5||Aug 2011||499|
|15.||Panasonic G10||3/5||..||70/100||4/5||4/5||Mar 2010||499|
|16.||Panasonic G2||..||..||72/100||4/5||4.5/5||Mar 2010||599|
|17.||Panasonic LX5||4/5||+||73/100||4.5/5||4.5/5||Jul 2010||499|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
Care should be taken when interpreting the review scores above, 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, 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 G12 vs Canon SX420
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 G12||Canon SX420|
|Camera Type||Fixed lens compact camera||Fixed lens compact camera|
|Camera Lens||28-140mm f/2.8-4.5||24-1008mm f/3.5-6.6|
|Launch Date||September 2010||January 2016|
|Launch Price||USD 499||USD 299|
|Sensor Specs||Canon G12||Canon SX420|
|Sensor Format||1/1.7" Sensor||1/2.3" Sensor|
|Sensor Size||7.6 x 5.7 mm||6.17 x 4.55 mm|
|Sensor Area||43.32 mm2||28.0735 mm2|
|Sensor Diagonal||9.5 mm||7.7 mm|
|Sensor Resolution||10 Megapixels||19.9 Megapixels|
|Image Resolution||3648 x 2736 pixels||5152 x 3864 pixels|
|Pixel Pitch||2.07 μm||1.19 μm|
|Pixel Density||23.04 MP/cm2||70.91 MP/cm2|
|Moiré control||Anti-Alias filter||no AA filter|
|Movie Capability||720/24p Video||720/25p Video|
|ISO Setting||80 - 3,200 ISO||100 - 1,600 ISO|
|ISO Boost||80 - 12,800 ISO||no Enhancement|
|Image Processor||DIGIC 4||DIGIC 4+|
|DXO Sensor Quality (score)||47||..|
|DXO Color Depth (bits)||20.4||..|
|DXO Dynamic Range (EV)||11.2||..|
|DXO Low Light (ISO)||161||..|
|Screen Specs||Canon G12||Canon SX420|
|Viewfinder Type||Optical viewfinder||no viewfinder|
|LCD Framing||Live View||Live View|
|Rear LCD Size||2.8inch||3.0inch|
|LCD Resolution||461k dots||230k dots|
|LCD Attachment||Swivel screen||Fixed screen|
|Shooting Specs||Canon G12||Canon SX420|
|Focus System||Contrast-detect AF||Contrast-detect AF|
|Continuous Shooting||1.1 shutter flaps/s||0.5 shutter flaps/s|
|Fill Flash||Build-in Flash||Build-in Flash|
|Storage Medium||SDXC cards||SDXC cards|
|Second Storage Option||Single card slot||Single card slot|
|UHS card support||no||no|
|Connectivity Specs||Canon G12||Canon SX420|
|External Flash||Hotshoe||no Hotshoe|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||mini HDMI||no HDMI|
|Wifi Support||no Wifi||Wifi built-in|
|Near-Field Communication||no NFC||NFC built-in|
|Body Specs||Canon G12||Canon SX420|
|Battery Life (CIPA)||370 shots per charge||195 shots per charge|
112 x 76 x 48 mm
(4.4 x 3.0 x 1.9 in)
104 x 69 x 85 mm
(4.1 x 2.7 x 3.3 in)
|Camera Weight||401 g (14.1 oz)||325 g (11.5 oz)|
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