Canon G12 vs Olympus E-PM2
The Canon PowerShot G12 and the Olympus PEN E-PM2 are two digital cameras that were revealed to the public, respectively, in September 2010 and September 2012. The G12 is a fixed lens compact, while the E-PM2 is a mirrorless interchangeable lens camera. The cameras are based on a 1/1.7-inch (G12) and a Four Thirds (E-PM2) sensor. The Canon has a resolution of 10 megapixels, whereas the Olympus provides 15.9 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 Olympus PEN E-PM2? 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 physical size and weight of the Canon G12 and the Olympus E-PM2 are illustrated in the side-by-side display below. 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 measures are rounded to the nearest millimeter.
The E-PM2 can be obtained in four different colors (black, silver, red, white), 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 Olympus E-PM2 is notably smaller (17 percent) than the Canon G12. In this context, it is worth noting that neither the G12 nor the E-PM2 are weather-sealed.
The above size and weight comparisons are to some extent incomplete and possibly misleading, as the G12 has a lens built in, whereas the E-PM2 is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup. You can compare the optics available for the E-PM2 and their specifications in the Micro Four Thirds Lens Catalog.
The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. 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 G12||112 mm||76 mm||48 mm||401 g||370||n||Sep 2010||499||ebay.com|
|2.||Olympus E-PM2||110 mm||64 mm||34 mm||269 g||360||n||Sep 2012||499||ebay.com|
|3.||Canon G16||109 mm||76 mm||40 mm||356 g||360||n||Aug 2013||549||ebay.com|
|4.||Canon G15||107 mm||76 mm||40 mm||352 g||350||n||Sep 2012||499||ebay.com|
|5.||Canon SX50||123 mm||87 mm||106 mm||595 g||315||n||Sep 2012||429||ebay.com|
|6.||Fujifilm X10||117 mm||70 mm||57 mm||350 g||270||n||Sep 2011||599||ebay.com|
|7.||Nikon P7800||119 mm||78 mm||50 mm||399 g||350||n||Sep 2013||549||ebay.com|
|8.||Olympus E-PL7||115 mm||67 mm||38 mm||357 g||350||n||Aug 2014||599||ebay.com|
|9.||Olympus E-P5||122 mm||69 mm||37 mm||420 g||330||n||May 2013||999||ebay.com|
|10.||Olympus E-PL6||111 mm||64 mm||38 mm||325 g||360||n||May 2013||599||ebay.com|
|11.||Olympus E-PL5||111 mm||64 mm||38 mm||325 g||360||n||Sep 2012||599||ebay.com|
|12.||Olympus E-PM1||110 mm||64 mm||34 mm||265 g||330||n||Jun 2011||499||ebay.com|
|13.||Olympus E-450||130 mm||91 mm||53 mm||440 g||500||n||Mar 2009||499||ebay.com|
|14.||Panasonic FZ150||124 mm||82 mm||92 mm||528 g||410||n||Aug 2011||499||ebay.com|
|15.||Panasonic G10||124 mm||84 mm||74 mm||388 g||380||n||Mar 2010||499||ebay.com|
|16.||Panasonic G2||124 mm||84 mm||74 mm||428 g||360||n||Mar 2010||599||ebay.com|
|17.||Panasonic LX5||110 mm||65 mm||43 mm||271 g||400||n||Jul 2010||499||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 obviously take relative prices into account. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. 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.
The size of the sensor inside a digital camera is one of the key determinants 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 G12 features a 1/1.7-inch sensor and the Olympus E-PM2 a Four Thirds sensor. The sensor area in the E-PM2 is 423 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 4.6 and 2.0. Both cameras feature a native aspect ratio (sensor width to sensor height) of 4:3.
With 15.9MP, the E-PM2 offers a higher resolution than the G12 (10MP), but the E-PM2 nevertheless has larger individual pixels (pixel pitch of 3.76μm versus 2.07μm for the G12) due to its larger sensor. Moreover, the E-PM2 is a much more recent model (by 2 years) than the G12, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixel-units.
The resolution advantage of the Olympus E-PM2 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the E-PM2 for good quality output (200 dots per inch) amounts to 23 x 17.3 inches or 58.5 x 43.9 cm, for very good quality (250 dpi) 18.4 x 13.8 inches or 46.8 x 35.1 cm, and for excellent quality (300 dpi) 15.4 x 11.5 inches or 39 x 29.3 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 Olympus PEN E-PM2 are ISO 100 to ISO 25600 (no boost).
In terms of underlying technology, the G12 is build around a CCD sensor, while the E-PM2 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.
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. Of the two cameras under consideration, the E-PM2 offers substantially better image quality than the G12 (overall score 25 points higher). The advantage is based on 2.3 bits higher color depth, 1 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.
|2.||Olympus E-PM2||Four Thirds||15.9||4608||3456||1080/30p||22.7||12.2||932||72|
|8.||Olympus E-PL7||Four Thirds||15.9||4608||3456||1080/30p||22.7||12.4||873||72|
|9.||Olympus E-P5||Four Thirds||15.9||4608||3456||1080/30p||22.8||12.4||895||72|
|10.||Olympus E-PL6||Four Thirds||15.9||4608||3456||1080/30p||22.5||12.0||717||68|
|11.||Olympus E-PL5||Four Thirds||15.9||4608||3456||1080/30p||22.8||12.3||889||72|
|12.||Olympus E-PM1||Four Thirds||12.2||4032||3024||1080/60i||21.0||10.3||499||52|
|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|
|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 can also record movies. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the E-PM2 provides a better video resolution than the G12. It can shoot movie footage at 1080/30p, while the Canon 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 E-PM2 relies on live view and the rear LCD for framing. That said, the E-PM2 can be equipped with an optional viewfinder – the VF-4. The following table reports on some other key feature differences and similarities of the Canon G12, the Olympus E-PM2, and comparable cameras.
|1.||Canon G12||optical||n||2.8 / 461||swivel||n||1/4000s||1.1/s||Y||Y|
|2.||Olympus E-PM2||optional||n||3.0 / 460||fixed||Y||1/4000s||8.0/s||n||Y|
|3.||Canon G16||optical||n||3.0 / 922||fixed||n||1/4000s||2.2/s||Y||Y|
|4.||Canon G15||optical||n||3.0 / 922||fixed||n||1/4000s||2.1/s||Y||Y|
|5.||Canon SX50||202||n||3.0 / 461||swivel||n||1/2000s||2.2/s||Y||Y|
|6.||Fujifilm X10||optical||n||2.8 / 460||fixed||n||1/4000s||10.0/s||Y||Y|
|7.||Nikon P7800||921||n||3.0 / 921||swivel||n||1/4000s||8.0/s||Y||Y|
|8.||Olympus E-PL7||optional||n||3.0 / 1037||tilting||Y||1/4000s||8.0/s||n||Y|
|9.||Olympus E-P5||optional||n||3.0 / 1037||tilting||Y||1/8000s||9.0/s||Y||Y|
|10.||Olympus E-PL6||optional||n||3.0 / 460||tilting||Y||1/4000s||8.0/s||n||Y|
|11.||Olympus E-PL5||optional||n||3.0 / 460||tilting||Y||1/4000s||8.0/s||n||Y|
|12.||Olympus E-PM1||optional||n||3.0 / 460||fixed||n||1/4000s||5.5/s||n||Y|
|13.||Olympus E-450||optical||n||2.7 / 215||fixed||n||1/4000s||3.5/s||Y||n|
|14.||Panasonic FZ150||202||n||3.0 / 460||swivel||n||1/2000s||12.0/s||Y||Y|
|15.||Panasonic G10||202||n||3.0 / 460||fixed||n||1/4000s||2.6/s||Y||n|
|16.||Panasonic G2||1440||n||3.0 / 460||swivel||Y||1/4000s||2.6/s||Y||n|
|17.||Panasonic LX5||optional||n||3.0 / 460||fixed||n||1/4000s||2.5/s||Y||Y|
|Notes: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.|
One difference between the cameras concerns the presence of an on-board flash. The G12 has one, while the E-PM2 does not. While the built-in flash of the G12 is not very powerful, it can at times be useful as a fill-in light.
Concerning the storage of imaging data, both the G12 and the E-PM2 write their files to SDXC cards. The E-PM2 supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the G12 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 PowerShot G12 and Olympus PEN E-PM2 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Mic / Speaker
|1.||Canon G12||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|2.||Olympus E-PM2||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|3.||Canon G16||Y||stereo / mono||-||-||mini||2.0||Y||-||-|
|4.||Canon G15||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|5.||Canon SX50||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|6.||Fujifilm X10||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|7.||Nikon P7800||Y||stereo / mono||Y||-||mini||2.0||-||-||-|
|8.||Olympus E-PL7||Y||stereo / mono||-||-||micro||2.0||Y||-||-|
|9.||Olympus E-P5||Y||stereo / mono||-||-||micro||2.0||Y||-||-|
|10.||Olympus E-PL6||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|11.||Olympus E-PL5||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|12.||Olympus E-PM1||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|13.||Olympus E-450||Y||- / -||-||-||-||2.0||-||-||-|
|14.||Panasonic FZ150||Y||stereo / -||-||-||mini||2.0||-||-||-|
|15.||Panasonic G10||Y||mono / -||-||-||mini||2.0||-||-||-|
|16.||Panasonic G2||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|17.||Panasonic LX5||Y||mono / mono||-||-||mini||2.0||-||-||-|
Both the G12 and the E-PM2 have been discontinued, but can regularly be found used on ebay. The G12 was replaced by the Canon G15, while the E-PM2 does not have a direct successor. Further information on the features and operation of the G12 and E-PM2 can be found, respectively, in the Canon G12 Manual (free pdf) or the online Olympus E-PM2 Manual.
So what conclusions can be drawn? Is there a clear favorite between the Canon G12 and the Olympus E-PM2? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.
Arguments in favor of the Canon PowerShot G12:
- Easier framing: Has an optical viewfinder for image composition and settings control.
- More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
- Ready to shoot: Has a lens built-in, whereas the E-PM2 requires a separate lens.
- Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
- More heavily discounted: Has been available for much longer (launched in September 2010).
Reasons to prefer the Olympus PEN E-PM2:
- More detail: Has more megapixels (15.9 vs 10MP), which boosts linear resolution by 26%.
- Better image quality: Scores substantially higher (25 points) in the DXO overall evaluation.
- Richer colors: Generates noticeably more natural colors (2.3 bits more color depth).
- More dynamic range: Captures a broader range of light and dark details (1 EV of extra DR).
- Better low-light sensitivity: Can shoot in dim conditions (2.5 stops ISO advantage).
- Better video: Provides higher definition movie capture (1080/30p vs 720/24p).
- Larger screen: Has a bigger rear LCD (3.0" vs 2.8") for image review and settings control.
- Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
- Faster burst: Shoots at higher frequency (8 vs 1.1 flaps/sec) to capture the decisive moment.
- More flexible: Takes interchangeable lenses and can thus be used with specialty optics.
- More compact: Is smaller (110x64mm vs 112x76mm) and will fit more readily into a bag.
- Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
- More modern: Reflects 2 years of technical progress since the G12 launch.
If the number of relative strengths (bullet points above) is taken as a guide, the E-PM2 is the clear winner of the contest (13 : 5 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 sports photographer will view the differences between cameras in a way that diverges from the perspective of a street photog, and a person interested in family portraits has distinct needs from a landscape 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 Olympus E-PM2 place the cameras among the top in their class? Find out in the latest Best Travel-Zoom Camera and Best Mirrorless Interchangeable Lens 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 G12 or the E-PM2. 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 where reviews by experts come in. The following table reports the overall ratings of the cameras as published by some of the major 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.
|1.||Canon G12||4/5||+||..||73/100||4.5/5||4.5/5||Sep 2010||499||ebay.com|
|2.||Olympus E-PM2||3/5||..||..||77/100||5/5||4.5/5||Sep 2012||499||ebay.com|
|3.||Canon G16||4/5||+||..||..||4.5/5||4.5/5||Aug 2013||549||ebay.com|
|4.||Canon G15||4/5||+||..||76/100||4.5/5||4.5/5||Sep 2012||499||ebay.com|
|5.||Canon SX50||3/5||+ +||..||72/100||4.5/5||4.5/5||Sep 2012||429||ebay.com|
|6.||Fujifilm X10||..||..||..||76/100||4/5||4.5/5||Sep 2011||599||ebay.com|
|7.||Nikon P7800||3/5||..||..||..||4/5||4.5/5||Sep 2013||549||ebay.com|
|8.||Olympus E-PL7||4/5||+||..||..||5/5||4/5||Aug 2014||599||ebay.com|
|9.||Olympus E-P5||5/5||+ +||..||78/100||4.5/5||5/5||May 2013||999||ebay.com|
|10.||Olympus E-PL6||..||..||..||..||..||..||May 2013||599||ebay.com|
|11.||Olympus E-PL5||3/5||+ +||..||..||4.5/5||4.5/5||Sep 2012||599||ebay.com|
|12.||Olympus E-PM1||..||86/100||..||71/100||4.5/5||4.5/5||Jun 2011||499||ebay.com|
|13.||Olympus E-450||..||..||..||..||4/5||4/5||Mar 2009||499||ebay.com|
|14.||Panasonic FZ150||3/5||+ +||..||76/100||4/5||4.5/5||Aug 2011||499||ebay.com|
|15.||Panasonic G10||3/5||..||..||70/100||4/5||4/5||Mar 2010||499||ebay.com|
|16.||Panasonic G2||..||..||..||72/100||4/5||4.5/5||Mar 2010||599||ebay.com|
|17.||Panasonic LX5||4/5||+||..||73/100||4.5/5||4.5/5||Jul 2010||499||ebay.com|
|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. Hence, a score should always be seen in the context of the camera's market launch date and its price, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. 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? If you would like to see a different side-by-side camera review, 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.
- Canon 650D vs Canon G12
- Canon 7D vs Olympus E-PM2
- Canon G12 vs Kodak AZ901
- Canon G12 vs Nikon 1 J4
- Canon G12 vs Nikon D7100
- Canon G12 vs Sony A77 II
- Canon G12 vs Sony RX100 III
- Canon G15 vs Olympus E-PM2
- Fujifilm GFX 50S vs Olympus E-PM2
- Nikon B600 vs Olympus E-PM2
- Olympus E-PM2 vs Sony A7R
- Olympus E-PM2 vs Sony RX10
Specifications: Canon G12 vs Olympus E-PM2
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||Olympus E-PM2|
|Camera Type||Fixed lens compact camera||Mirrorless system camera|
|Camera Lens||28-140mm f/2.8-4.5||Micro Four Thirds lenses|
|Launch Date||September 2010||September 2012|
|Launch Price||USD 499||USD 499|
|Sensor Specs||Canon G12||Olympus E-PM2|
|Sensor Format||1/1.7" Sensor||Four Thirds Sensor|
|Sensor Size||7.6 x 5.7 mm||17.3 x 13.0 mm|
|Sensor Area||43.32 mm2||224.9 mm2|
|Sensor Diagonal||9.5 mm||21.6 mm|
|Sensor Resolution||10 Megapixels||15.9 Megapixels|
|Image Resolution||3648 x 2736 pixels||4608 x 3456 pixels|
|Pixel Pitch||2.07 μm||3.76 μm|
|Pixel Density||23.04 MP/cm2||7.08 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||720/24p Video||1080/30p Video|
|ISO Setting||80 - 3,200 ISO||100 - 25,600 ISO|
|ISO Boost||80 - 12,800 ISO||no Enhancement|
|Image Processor||DIGIC 4||TruePic VI|
|DXO Sensor Quality (score)||47||72|
|DXO Color Depth (bits)||20.4||22.7|
|DXO Dynamic Range (EV)||11.2||12.2|
|DXO Low Light (ISO)||161||932|
|Screen Specs||Canon G12||Olympus E-PM2|
|Viewfinder Type||Optical viewfinder||Viewfinder optional|
|LCD Framing||Live View||Live View|
|Rear LCD Size||2.8inch||3.0inch|
|LCD Resolution||461k dots||460k dots|
|LCD Attachment||Swivel screen||Fixed screen|
|Touch Input||no Touchscreen||Touchscreen|
|Shooting Specs||Canon G12||Olympus E-PM2|
|Focus System||Contrast-detect AF||Contrast-detect AF|
|Continuous Shooting||1.1 shutter flaps/s||8 shutter flaps/s|
|Image Stabilization||Lens-based stabilization||In-body stabilization|
|Fill Flash||Built-in Flash||no On-Board Flash|
|Storage Medium||SDXC cards||SDXC cards|
|Single or Dual Card Slots||Single card slot||Single card slot|
|UHS card support||no||UHS-I|
|Connectivity Specs||Canon G12||Olympus E-PM2|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||mini HDMI||mini HDMI|
|Wifi Support||no Wifi||no Wifi|
|Body Specs||Canon G12||Olympus E-PM2|
|Battery Life (CIPA)||370 shots per charge||360 shots per charge|
112 x 76 x 48 mm
(4.4 x 3.0 x 1.9 in)
110 x 64 x 34 mm
(4.3 x 2.5 x 1.3 in)
|Camera Weight||401 g (14.1 oz)||269 g (9.5 oz)|
Did you notice an error on this page? If so, please get in touch, so that we can correct the information.