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Canon G12 vs Panasonic GH1

The Canon PowerShot G12 and the Panasonic Lumix DMC-GH1 are two digital cameras that were officially introduced, respectively, in September 2010 and March 2009. The G12 is a fixed lens compact, while the GH1 is a mirrorless interchangeable lens camera. The cameras are based on a 1/1.7-inch (G12) and a Four Thirds (GH1) sensor. The Canon has a resolution of 10 megapixels, whereas the Panasonic provides 12 MP.

Below is an overview of the main specs of the two cameras as a starting point for the comparison.

Headline Specifications
Canon G12 versus Panasonic GH1
Canon G12 Panasonic GH1
Fixed lens compact camera Mirrorless system camera
28-140mm f/2.8-4.5 Micro Four Thirds lenses
10 MP, 1/1.7" Sensor 12 MP, Four Thirds Sensor
720/24p Video 1080/24p Video
ISO 80-3,200 (80 - 12,800) ISO 100-1,600 (100 - 3,200)
Optical viewfinder Electronic viewfinder (1440k dots)
2.8 LCD, 461k dots 3.0 LCD, 460k dots
Swivel screen (not touch-sensitive) Swivel screen (not touch-sensitive)
1.1 shutter flaps per second 3 shutter flaps per second
370 shots per battery charge300 shots per battery charge
112 x 76 x 48 mm, 401 g 124 x 90 x 45 mm, 385 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Canon PowerShot G12 and the Panasonic Lumix DMC-GH1? 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

An illustration of the physical size and weight of the Canon G12 and the Panasonic GH1 is provided in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All size dimensions are rounded to the nearest millimeter.

The GH1 can be obtained in two different colors (black, red), while the G12 is only available in black.

Size Canon G12 vs Panasonic GH1
Compare G12 versus GH1 top
Comparison G12 or GH1 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Panasonic GH1 is notably larger (31 percent) than the Canon G12. In this context, it is worth noting that neither the G12 nor the GH1 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 GH1 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 GH1 and their specifications in the Micro Four Thirds Lens Catalog.

Concerning battery life, the G12 gets 370 shots out of its NB-7L battery, while the GH1 can take 300 images on a single charge of its DMW-BLB13 power pack.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. If you would like to visualize and compare a different camera combination, you can navigate to the CAM-parator app and make your selection from a broad list of cameras there.

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Body Specifications
  Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
 
Canon G12 4.4 in 3.0 in 1.9 in 14.1 oz 370 n Sep 2010 499i
 
Panasonic GH1 4.9 in 3.5 in 1.8 in 13.6 oz 300 n Mar 2009 899i
 
Canon G16 4.3 in 3.0 in 1.6 in 12.6 oz 360 n Aug 2013 549 i
 
Canon G15 4.2 in 3.0 in 1.6 in 12.4 oz 350 n Sep 2012 499i
 
Canon SX50 4.8 in 3.4 in 4.2 in 21.0 oz 315 n Sep 2012 429i
 
Fujifilm X10 4.6 in 2.8 in 2.2 in 12.3 oz 270 n Sep 2011 599i
 
Nikon P7800 4.7 in 3.1 in 2.0 in 14.1 oz 350 n Sep 2013 549i
 
Olympus E-450 5.1 in 3.6 in 2.1 in 15.5 oz 500 n Mar 2009 499i
 
Panasonic LX100 4.5 in 2.6 in 2.2 in 13.9 oz 300 n Sep 2014 899 i
 
Panasonic FZ150 4.9 in 3.2 in 3.6 in 18.6 oz 410 n Aug 2011 499i
 
Panasonic G10 4.9 in 3.3 in 2.9 in 13.7 oz 380 n Mar 2010 499i
 
Panasonic G2 4.9 in 3.3 in 2.9 in 15.1 oz 360 n Mar 2010 599i
 
Panasonic GH2 4.9 in 3.5 in 3.0 in 15.6 oz 330 n Sep 2010 899i
 
Panasonic LX5 4.3 in 2.6 in 1.7 in 9.6 oz 400 n Jul 2010 499i
 
Panasonic G1 4.9 in 3.3 in 1.8 in 12.7 oz 410 n Sep 2008 599i
Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.

The price is, of course, an important factor in any camera decision. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The G12 was launched at a lower price than the GH1, despite having a lens built in. 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.

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Sensor comparison

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 associated with larger, more expensive camera bodies and lenses.

Of the two cameras under consideration, the Canon G12 features a 1/1.7-inch sensor and the Panasonic GH1 a Four Thirds sensor. The sensor area in the GH1 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.

Canon G12 and Panasonic GH1 sensor measures

With 12MP, the GH1 offers a higher resolution than the G12 (10MP), but the GH1 nevertheless has larger individual pixels (pixel pitch of 4.33μm versus 2.07μm for the G12) due to its larger sensor. However, the G12 is a somewhat more recent model (by 1 year and 6 months) than the GH1, and its sensor might have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units.

The resolution advantage of the Panasonic GH1 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the GH1 for good quality output (200 dots per inch) amounts to 20 x 15 inches or 50.8 x 38.1 cm, for very good quality (250 dpi) 16 x 12 inches or 40.6 x 30.5 cm, and for excellent quality (300 dpi) 13.3 x 10 inches or 33.9 x 25.4 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 Panasonic Lumix DMC-GH1 are ISO 100 to ISO 1600, with the possibility to increase the ISO range to 100-3200.

G12 versus GH1 MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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 GH1 offers substantially better image quality than the G12 (overall score 17 points higher). The advantage is based on 1.2 bits higher color depth, 0.4 EV in additional dynamic range, and 2.3 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.

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Sensor Characteristics
  Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
 
Canon G12 1/1.7 10.0 3648 2736720/24p20.411.216147
 
Panasonic GH1 Four Thirds 12.0 4000 30001080/24p21.611.677264
 
Canon G16 1/1.7 12.0 4000 30001080/60p21.011.723054
 
Canon G15 1/1.7 12.0 4000 30001080/24p19.911.516546
 
Canon SX50 1/2.3 12.0 4000 30001080/24p20.311.217947
 
Fujifilm X10 2/3 12.0 4000 30001080/30p20.511.324550
 
Nikon P7800 1/1.7 12.0 4000 30001080/30p21.211.720054
 
Olympus E-450 Four Thirds 10.0 3648 2736none21.510.551256
 
Panasonic LX100 Four Thirds 12.7 4112 30884K/30p22.312.555367
 
Panasonic FZ150 1/2.3 12.0 4000 30001080/60p19.410.913240
 
Panasonic G10 Four Thirds 12.0 4000 3000720/30p21.210.141152
 
Panasonic G2 Four Thirds 12.0 4000 3000720/30p21.210.349353
 
Panasonic GH2 Four Thirds 15.9 4608 34561080/60i21.211.365560
 
Panasonic LX5 1/1.7 10.0 3648 2736720/60p19.610.813241
 
Panasonic G1 Four Thirds 12.0 4000 3000none21.110.346353

Many modern cameras cannot only take still pictures, but also record videos. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the GH1 provides a better video resolution than the G12. It can shoot movie footage at 1080/24p, while the Canon is limited to 720/24p.

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Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. For example, the GH1 has an electronic viewfinder (1440k dots), while the G12 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 table below summarizes some of the other core capabilities of the Canon G12 and Panasonic GH1 in connection with corresponding information for a sample of similar cameras.

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Core Features
  Camera
Model
Viewfinder
(Type or
000 dots)
Control
Panel
(yes/no)
LCD
Size
(inch)
LCD
Resolution
(000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Mech
Shutter
Speed
Shutter
Flaps
(1/sec)
Built-in
Flash
(yes/no)
Built-in
Image
Stab
 
Canon G12optical n 2.8 461 swivel n 1/4000s 1.1 Y Y
 
Panasonic GH11440 n 3.0 460 swivel n 1/4000s 3.0 Y n
 
Canon G16optical n 3.0 922 fixed n 1/4000s 2.2 Y Y
 
Canon G15optical n 3.0 922 fixed n 1/4000s 2.1 Y Y
 
Canon SX50202 n 3.0 461 swivel n 1/2000s 2.2 Y Y
 
Fujifilm X10optical n 2.8 460 fixed n 1/4000s 10.0 Y Y
 
Nikon P7800921 n 3.0 921 swivel n 1/4000s 8.0 Y Y
 
Olympus E-450optical n 2.7 215 fixed n 1/4000s 3.5 Y n
 
Panasonic LX1002764 n 3.0 921 fixed n 1/4000s 11.0 n Y
 
Panasonic FZ150202 n 3.0 460 swivel n 1/2000s 12.0 Y Y
 
Panasonic G10202 n 3.0 460 fixed n 1/4000s 2.6 Y n
 
Panasonic G21440 n 3.0 460 swivel Y 1/4000s 2.6 Y n
 
Panasonic GH21534 n 3.0 460 swivel n 1/4000s 3.0 Y n
 
Panasonic LX5optional n 3.0 460 fixed n 1/4000s 2.5 Y Y
 
Panasonic G11440 n 3.0 460 swivel n 1/4000s 3.0 Y n
The GH1 has an articulated screen that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in taking selfies. In contrast, the G12 does not have a selfie-screen.

The G12 writes its imaging data to SDXC cards, while the GH1 uses SDHC cards.

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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 G12 and Panasonic Lumix DMC-GH1 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
  Camera
Model
Hotshoe
Port
Internal
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
 
Canon G12Ystereomono--mini2.0---
 
Panasonic GH1Ystereo-Y-mini2.0---
 
Canon G16Ystereomono--mini2.0Y--
 
Canon G15Ystereomono--mini2.0---
 
Canon SX50Ystereomono--mini2.0---
 
Fujifilm X10Ystereomono--mini2.0---
 
Nikon P7800YstereomonoY-mini2.0---
 
Olympus E-450Y-----2.0---
 
Panasonic LX100Ystereomono--micro2.0YY-
 
Panasonic FZ150Ystereo---mini2.0---
 
Panasonic G10Ymono---mini2.0---
 
Panasonic G2Ystereomono--mini2.0---
 
Panasonic GH2YstereomonoY-mini2.0---
 
Panasonic LX5Ymonomono--mini2.0---
 
Panasonic G1Y----mini2.0---

It is notable that the GH1 has a microphone port, which can help to improve the quality of audio recordings by attaching an external microphone. The G12 does not feature such a mic input.

Both the G12 and the GH1 have been discontinued, but can regularly be found used on eBay. The GH1 was replaced by the Panasonic GH2, while the G12 was followed by the Canon G15. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Canon and Panasonic websites.

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Review summary

So what conclusions can be drawn? Which of the two cameras – the Canon G12 or the Panasonic GH1 – has the upper hand? Is one clearly better than the other? The listing below highlights the relative strengths of the two models.

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Reasons to prefer the Canon PowerShot G12:

  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • Ready to shoot: Has a lens built-in, whereas the GH1 requires a separate lens.
  • More compact: Is smaller (112x76mm vs 124x90mm) and thus needs less room in the bag.
  • Longer lasting: Can take more shots (370 versus 300) on a single battery charge.
  • Sharper images: Has hand-shake reducing image stabilization built-in.
  • More affordable: Was introduced at a lower price, despite coming with a built-in lens.
  • More modern: Is somewhat more recent (announced 1 year and 6 months after the GH1).

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Advantages of the Panasonic Lumix DMC-GH1:

  • More detail: Has more megapixels (12 vs 10MP), which boosts linear resolution by 10%.
  • Better image quality: Scores substantially higher (17 points) in the DXO overall evaluation.
  • Richer colors: Generates noticeably more natural colors (1.2 bits more color depth).
  • Better low-light sensitivity: Can shoot in dim conditions (2.3 stops ISO advantage).
  • Better video: Provides higher definition movie capture (1080/24p vs 720/24p).
  • Better sound: Can connect to an external microphone for higher quality sound recording.
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • Larger screen: Has a bigger rear LCD (3.0" vs 2.8") for image review and settings control.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • Faster burst: Shoots at higher frequency (3 vs 1.1 flaps/sec) to capture the decisive moment.
  • More flexible: Takes interchangeable lenses and can thus be used with specialty optics.
  • More heavily discounted: Has been on the market for longer (launched in March 2009).

If the count of individual advantages (bullet points above) is taken as a guide, the GH1 is the clear winner of the contest (12 : 7 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.

G12 07:12 GH1

How about other alternatives? Do the specifications of the Canon G12 and the Panasonic GH1 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 specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it remains incomplete and does no justice, for example, to the way the G12 or the GH1 perform in practice. At times, user reviews, such as those published at amazon, address these issues in a useful manner, but such feedback is on many occasions incomplete, inconsistent, and unreliable.

Expert reviews

This is why expert reviews are important. 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.

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Review Scores
  Camera
Model
camera
  labs  
dp
review  
ephoto
  zine  
imaging
resource
photography
  blog  
Camera
Launch
Launch
Price (USD)
Street
Price
 
Canon G12+73/1004.5/54.5/54.5/5 Sep 2010 499i
 
Panasonic GH1+ +72/1004.5/55/54.5/5 Mar 2009 899i
 
Canon G16+..4.5/54.5/54.5/5 Aug 2013 549 i
 
Canon G15+76/1004.5/54.5/54.5/5 Sep 2012 499i
 
Canon SX50+ +72/1004.5/5..4.5/5 Sep 2012 429i
 
Fujifilm X10..76/1004/53.5/54.5/5 Sep 2011 599i
 
Nikon P7800....4/53.5/54.5/5 Sep 2013 549i
 
Olympus E-450....4/5..4/5 Mar 2009 499i
 
Panasonic LX100+ +85/1005/54/55/5 Sep 2014 899 i
 
Panasonic FZ150+ +76/1004/55/54.5/5 Aug 2011 499i
 
Panasonic G10..70/1004/5..4/5 Mar 2010 499i
 
Panasonic G2..72/1004/54/54.5/5 Mar 2010 599i
 
Panasonic GH2+ +79/1004.5/54.5/55/5 Sep 2010 899i
 
Panasonic LX5+73/1004.5/55/54.5/5 Jul 2010 499i
 
Panasonic G1+ +70/1004/54.5/54.5/5 Sep 2008 599i
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The review scores listed above should be treated 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. A score, therefore, has to be seen in close connection to the price and market introduction time 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. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

Canon G12:
Check Ebay offers
Panasonic GH1:
Check Ebay offers

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. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.

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    Specifications: Canon G12 vs Panasonic GH1

    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 Specifications
    Camera Model Canon G12 Panasonic GH1
    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 March 2009
    Launch Price USD 499 USD 899
    Sensor Specs Canon G12 Panasonic GH1
    Sensor Technology CCD CMOS
    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
    Crop Factor 4.6x 2.0x
    Sensor Resolution 10 Megapixels 12 Megapixels
    Image Resolution 3648 x 2736 pixels 4000 x 3000 pixels
    Pixel Pitch 2.07 μm 4.33 μm
    Pixel Density 23.04 MP/cm2 5.34 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability 720/24p Video 1080/24p Video
    ISO Setting 80 - 3,200 ISO 100 - 1,600 ISO
    ISO Boost 80 - 12,800 ISO 100 - 3,200 ISO
    Image Processor DIGIC 4 Venus HD
    DXO Sensor Quality (score) 47 64
    DXO Color Depth (bits) 20.4 21.6
    DXO Dynamic Range (EV) 11.2 11.6
    DXO Low Light (ISO) 161 772
    Screen Specs Canon G12 Panasonic GH1
    Viewfinder Type Optical viewfinder Electronic viewfinder
    Viewfinder Field of View 100%
    Viewfinder Magnification 0.70x
    Viewfinder Resolution 1440k dots
    LCD Framing Live View Live View
    Rear LCD Size 2.8inch 3.0inch
    LCD Resolution 461k dots 460k dots
    LCD Attachment Swivel screen Swivel screen
    Shooting Specs Canon G12 Panasonic GH1
    Focus System Contrast-detect AF Contrast-detect AF
    Continuous Shooting 1.1 shutter flaps/s 3 shutter flaps/s
    Fill Flash Build-in Flash Build-in Flash
    Storage Medium SDXC cards SDHC cards
    Second Storage Option Single card slot Single card slot
    UHS card support no no
    Connectivity Specs Canon G12 Panasonic GH1
    External Flash Hotshoe Hotshoe
    USB Connector USB 2.0 USB 2.0
    HDMI Port mini HDMI mini HDMI
    Microphone Port no MIC socket External MIC port
    Wifi Support no Wifi no Wifi
    Body Specs Canon G12 Panasonic GH1
    Battery Type NB-7L DMW-BLB13
    Battery Life (CIPA)370 shots per charge300 shots per charge
    Body Dimensions 112 x 76 x 48 mm
    (4.4 x 3.0 x 1.9 in)
    124 x 90 x 45 mm
    (4.9 x 3.5 x 1.8 in)
    Camera Weight 401 g (14.1 oz) 385 g (13.6 oz)

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