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Canon G12 vs Leica M9

The Canon PowerShot G12 and the Leica M9 are two digital cameras that were officially introduced, respectively, in September 2010 and September 2009. The G12 is a fixed lens compact, while the M9 is a rangefinder-focusing mirrorless. The cameras are based on a 1/1.7-inch (G12) and a full frame (M9) sensor. The Canon has a resolution of 10 megapixels, whereas the Leica provides 18.1 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
Leica M9
Canon G12   Leica M9
Fixed lens compact camera Rangefinder camera
28-140mm f/2.8-4.5 Leica M mount lenses
10 MP – 1/1.7" sensor 18.1 MP – Full Frame sensor
720/24p Video no Video
ISO 80-3,200 (80 - 12,800) ISO 80-2,500
Optical viewfinder Optical viewfinder
2.8" LCD – 461k dots 2.5" LCD – 230k dots
Swivel screen (not touch-sensitive) Fixed screen (not touch-sensitive)
1.1 shutter flaps per second 2 shutter flaps per second
370 shots per battery charge550 shots per battery charge
112 x 76 x 48 mm, 401 g 139 x 80 x 37 mm, 585 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Canon PowerShot G12 and the Leica M9? 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.

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Body comparison

The side-by-side display below illustrates the physical size and weight of the Canon G12 and the Leica M9. 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 M9 can be obtained in two different colors (black, silver), while the G12 is only available in black.

Size Canon G12 vs Leica M9
Compare G12 versus M9 top
Comparison G12 or M9 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Leica M9 is notably larger (31 percent) than the Canon G12. In this context, it is worth noting that neither the G12 nor the M9 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 M9 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 M9 and their specifications in the Leica M Lens Catalog.

Concerning battery life, the G12 gets 370 shots out of its Canon NB-7L battery, while the M9 can take 550 images on a single charge of its Leica BLI-312 power pack.

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.

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Body Specifications
# image Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Canon G12 112 mm 76 mm 48 mm 401 g 370 n Sep 2010 499ebay.com
2.
 
Leica M9 139 mm 80 mm 37 mm 585 g 550 n Sep 2009 7,999ebay.com
3.
 
Canon G16 109 mm 76 mm 40 mm 356 g 360 n Aug 2013 549ebay.com
4.
 
Canon G15 107 mm 76 mm 40 mm 352 g 350 n Sep 2012 499ebay.com
5.
 
Canon SX50 123 mm 87 mm 106 mm 595 g 315 n Sep 2012 429ebay.com
6.
 
Canon T2i 129 mm 98 mm 62 mm 530 g 440 n Feb 2010 699ebay.com
7.
 
Fujifilm X10 117 mm 70 mm 57 mm 350 g 270 n Sep 2011 599ebay.com
8.
 
Leica M10 139 mm 80 mm 39 mm 660 g 210 Y Jan 2017 6,595ebay.com
9.
 
Leica X Vario 133 mm 73 mm 95 mm 680 g 450 n Jun 2013 2,850ebay.com
10.
 
Leica M Typ 240 139 mm 80 mm 42 mm 680 g 500 Y Sep 2012 6,950ebay.com
11.
 
Leica M8 139 mm 80 mm 37 mm 591 g 550 n Sep 2006 5,499ebay.com
12.
 
Nikon P7800 119 mm 78 mm 50 mm 399 g 350 n Sep 2013 549ebay.com
13.
 
Olympus E-450 130 mm 91 mm 53 mm 440 g 500 n Mar 2009 499ebay.com
14.
 
Panasonic FZ150 124 mm 82 mm 92 mm 528 g 410 n Aug 2011 499ebay.com
15.
 
Panasonic G10 124 mm 84 mm 74 mm 388 g 380 n Mar 2010 499ebay.com
16.
 
Panasonic G2 124 mm 84 mm 74 mm 428 g 360 n Mar 2010 599ebay.com
17.
 
Panasonic LX5 110 mm 65 mm 43 mm 271 g 400 n Jul 2010 499ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
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The price is, of course, an important factor in any camera decision. The manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The G12 was launched at a lower price than the M9, 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.

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. 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 Leica M9 a full frame sensor. The sensor area in the M9 is 1909 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 4.6 and 1.0. The sensor in the G12 has a native 4:3 aspect ratio, while the one in the M9 offers a 3:2 aspect.

Canon G12 and Leica M9 sensor measures

With 18.1MP, the M9 offers a higher resolution than the G12 (10MP), but the M9 nevertheless has larger individual pixels (pixel pitch of 6.91μm versus 2.07μm for the G12) due to its larger sensor. However, the G12 is a somewhat more recent model (by 1 year) than the M9, and its sensor might have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that the M9 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Leica M9 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the M9 for good quality output (200 dots per inch) amounts to 26.1 x 17.4 inches or 66.2 x 44.1 cm, for very good quality (250 dpi) 20.8 x 13.9 inches or 53 x 35.3 cm, and for excellent quality (300 dpi) 17.4 x 11.6 inches or 44.1 x 29.4 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 Leica M9 are ISO 80 to ISO 2500 (no boost).

Technology-wise, both cameras are equipped with CCD (Charged Coupled Device) sensors. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.

G12 versus M9 MP

For many cameras, data on sensor performance has been reported by DXO Mark. This service is based on lab testing and assigns an overall score to each camera sensor, as well as ratings for dynamic range ("DXO Landscape"), color depth ("DXO Portrait"), and low-light sensitivity ("DXO Sports"). Of the two cameras under consideration, the M9 offers substantially better image quality than the G12 (overall score 22 points higher). The advantage is based on 2.1 bits higher color depth, 0.5 EV in additional dynamic range, and 2.5 stops in additional 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.

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Sensor Characteristics
# image Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Canon G12 1/1.7 10.0 3648 2736720/24p20.411.216147
2.
 
Leica M9 Full Frame 18.1 5212 3472none22.511.788469
3.
 
Canon G16 1/1.7 12.0 4000 30001080/60p21.011.723054
4.
 
Canon G15 1/1.7 12.0 4000 30001080/24p19.911.516546
5.
 
Canon SX50 1/2.3 12.0 4000 30001080/24p20.311.217947
6.
 
Canon T2i APS-C 17.9 5184 34561080/30p22.111.578466
7.
 
Fujifilm X10 2/3 12.0 4000 30001080/30p20.511.324550
8.
 
Leica M10 Full Frame 23.8 5952 3992none24.413.2213386
9.
 
Leica X Vario APS-C 16.1 4928 32721080/30p23.412.7132078
10.
 
Leica M Typ 240 Full Frame 23.7 5952 39761080/25p24.013.3186084
11.
 
Leica M8 APS-H 10.4 3936 2630none21.111.366359
12.
 
Nikon P7800 1/1.7 12.0 4000 30001080/30p21.211.720054
13.
 
Olympus E-450 Four Thirds 10.0 3648 2736none21.510.551256
14.
 
Panasonic FZ150 1/2.3 12.0 4000 30001080/60p19.410.913240
15.
 
Panasonic G10 Four Thirds 12.0 4000 3000720/30p21.210.141152
16.
 
Panasonic G2 Four Thirds 12.0 4000 3000720/30p21.210.349353
17.
 
Panasonic LX5 1/1.7 10.0 3648 2736720/60p19.610.813241
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Many modern cameras cannot only take still pictures, but also record videos. The G12 indeed provides movie recording capabilities, while the M9 does not. The highest resolution format that the G12 can use is 720/24p.

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Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. The G12 and the M9 are similar in the sense that both have an optical viewfinder. The latter is useful for getting a clear image for framing even in brightly lit environments. The following table reports on some other key feature differences and similarities of the Canon G12, the Leica M9, and comparable cameras.

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Core Features
# image 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 G12optical n2.8 / 461 swivel n 1/4000s 1.1/s Y Y
2.
 
Leica M9optical n2.5 / 230 fixed n 1/4000s 2.0/s n n
3.
 
Canon G16optical n3.0 / 922 fixed n 1/4000s 2.2/s Y Y
4.
 
Canon G15optical n3.0 / 922 fixed n 1/4000s 2.1/s Y Y
5.
 
Canon SX50202 n3.0 / 461 swivel n 1/2000s 2.2/s Y Y
6.
 
Canon T2ioptical n3.0 / 1040 fixed n 1/4000s 3.7/s Y n
7.
 
Fujifilm X10optical n2.8 / 460 fixed n 1/4000s 10.0/s Y Y
8.
 
Leica M10optical n3.0 / 1037 fixed n 1/4000s 5.0/s n n
9.
 
Leica X Variooptional n3.0 / 920 fixed n 1/2000s 5.0/s Y n
10.
 
Leica M Typ 240optical n3.0 / 920 fixed n 1/4000s 3.0/s n n
11.
 
Leica M8optical n2.5 / 230 fixed n 1/8000s 2.0/s n n
12.
 
Nikon P7800921 n3.0 / 921 swivel n 1/4000s 8.0/s Y Y
13.
 
Olympus E-450optical n2.7 / 215 fixed n 1/4000s 3.5/s Y n
14.
 
Panasonic FZ150202 n3.0 / 460 swivel n 1/2000s 12.0/s Y Y
15.
 
Panasonic G10202 n3.0 / 460 fixed n 1/4000s 2.6/s Y n
16.
 
Panasonic G21440 n3.0 / 460 swivel Y 1/4000s 2.6/s Y n
17.
 
Panasonic LX5optional n3.0 / 460 fixed n 1/4000s 2.5/s Y Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.
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One difference between the cameras concerns the presence of an on-board flash. The G12 has one, while the M9 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 M9 write their files to SDXC 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 Leica M9 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
# image Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Canon G12Ystereo / mono--mini2.0---
2.
 
Leica M9Y- / ----2.0---
3.
 
Canon G16Ystereo / mono--mini2.0Y--
4.
 
Canon G15Ystereo / mono--mini2.0---
5.
 
Canon SX50Ystereo / mono--mini2.0---
6.
 
Canon T2iYstereo / -Y-mini2.0---
7.
 
Fujifilm X10Ystereo / mono--mini2.0---
8.
 
Leica M10Y- / -----Y--
9.
 
Leica X VarioYstereo / mono--mini2.0---
10.
 
Leica M Typ 240Ystereo / mono---2.0---
11.
 
Leica M8Y- / ----2.0---
12.
 
Nikon P7800Ystereo / monoY-mini2.0---
13.
 
Olympus E-450Y- / ----2.0---
14.
 
Panasonic FZ150Ystereo / ---mini2.0---
15.
 
Panasonic G10Ymono / ---mini2.0---
16.
 
Panasonic G2Ystereo / mono--mini2.0---
17.
 
Panasonic LX5Ymono / mono--mini2.0---
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Both the G12 and the M9 have been discontinued, but can regularly be found used on ebay. The M9 was replaced by the Leica M Typ 240, while the G12 was followed by the Canon G15. Further information on the features and operation of the G12 and M9 can be found, respectively, in the Canon G12 Manual (free pdf) or the online Leica M9 Manual.

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Review summary

So what conclusions can be drawn? Is the Canon G12 better than the Leica M9 or vice versa? The listing below highlights the relative strengths of the two models.

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Arguments in favor of the Canon PowerShot G12:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Broader imaging potential: Can record not only still images but also 720/24p movies.
  • Larger screen: Has a bigger rear LCD (2.8" vs 2.5") for image review 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.
  • Ready to shoot: Has a lens built-in, whereas the M9 requires a separate lens.
  • More compact: Is smaller (112x76mm vs 139x80mm) and thus needs less room in the bag.
  • Less heavy: Is lighter even though it comes with a built-in lens (unlike the M9).
  • Sharper images: Has hand-shake reducing image stabilization built-in.
  • Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
  • More affordable: Was introduced at a lower price, despite coming with a built-in lens.
  • More modern: Is somewhat more recent (announced 1 year after the M9).

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Reasons to prefer the Leica M9:

  • More detail: Has more megapixels (18.1 vs 10MP), which boosts linear resolution by 37%.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Better image quality: Scores substantially higher (22 points) in the DXO overall evaluation.
  • Richer colors: Generates noticeably more natural colors (2.1 bits more color depth).
  • Better low-light sensitivity: Can shoot in dim conditions (2.5 stops ISO advantage).
  • Faster burst: Shoots at higher frequency (2 vs 1.1 flaps/sec) to capture the decisive moment.
  • More flexible: Takes interchangeable lenses and can thus be used with different optics.
  • Longer lasting: Gets more shots (550 versus 370) out of a single battery charge.
  • More prestigious: Has the Leica luxury appeal, which ensures a high resale value.
  • More heavily discounted: Has been on the market for longer (launched in September 2009).

If the number of relative strengths (bullet points above) is taken as a guide, the G12 emerges as the winner of the contest (12 : 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 wedding photographer will view the differences between cameras in a way that diverges from the perspective of a travel photog, and a person interested in cityscapes has distinct needs from a macro shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

G12 12:10 M9

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 M9 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 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.

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Expert Camera Reviews
# image  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Canon G124/5+..73/1004.5/54.5/5 Sep 2010 499ebay.com
2.
 
Leica M9........4.5/5.. Sep 2009 7,999ebay.com
3.
 
Canon G164/5+....4.5/54.5/5 Aug 2013 549ebay.com
4.
 
Canon G154/5+..76/1004.5/54.5/5 Sep 2012 499ebay.com
5.
 
Canon SX503/5+ +..72/1004.5/54.5/5 Sep 2012 429ebay.com
6.
 
Canon T2i..+ +..77/1004/54.5/5 Feb 2010 699ebay.com
7.
 
Fujifilm X10......76/1004/54.5/5 Sep 2011 599ebay.com
8.
 
Leica M104.5/5......4/54.5/5 Jan 2017 6,595ebay.com
9.
 
Leica X Vario3/5......4/54/5 Jun 2013 2,850ebay.com
10.
 
Leica M Typ 2404/5......4/5.. Sep 2012 6,950ebay.com
11.
 
Leica M8......+ +.... Sep 2006 5,499ebay.com
12.
 
Nikon P78003/5......4/54.5/5 Sep 2013 549ebay.com
13.
 
Olympus E-450........4/54/5 Mar 2009 499ebay.com
14.
 
Panasonic FZ1503/5+ +..76/1004/54.5/5 Aug 2011 499ebay.com
15.
 
Panasonic G103/5....70/1004/54/5 Mar 2010 499ebay.com
16.
 
Panasonic G2......72/1004/54.5/5 Mar 2010 599ebay.com
17.
 
Panasonic LX54/5+..73/1004.5/54.5/5 Jul 2010 499ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.
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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. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

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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 use the search menu below. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.

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    Specifications: Canon G12 vs Leica M9

    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 Leica M9
    Camera Type Fixed lens compact camera Rangefinder camera
    Camera Lens 28-140mm f/2.8-4.5 Leica M mount lenses
    Launch Date September 2010 September 2009
    Launch Price USD 499 USD 7,999
    Sensor Specs Canon G12 Leica M9
    Sensor Technology CCD CCD
    Sensor Format 1/1.7" Sensor Full Frame Sensor
    Sensor Size 7.6 x 5.7 mm 36.0 x 24.0 mm
    Sensor Area 43.32 mm2 864 mm2
    Sensor Diagonal 9.5 mm 43.3 mm
    Crop Factor 4.6x 1.0x
    Sensor Resolution 10 Megapixels 18.1 Megapixels
    Image Resolution 3648 x 2736 pixels 5212 x 3472 pixels
    Pixel Pitch 2.07 μm 6.91 μm
    Pixel Density 23.04 MP/cm2 2.09 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability 720/24p Video no Video
    ISO Setting 80 - 3,200 ISO 80 - 2,500 ISO
    ISO Boost 80 - 12,800 ISO no Enhancement
    DXO Sensor Quality (score) 47 69
    DXO Color Depth (bits) 20.4 22.5
    DXO Dynamic Range (EV) 11.2 11.7
    DXO Low Light (ISO) 161 884
    Screen Specs Canon G12 Leica M9
    Viewfinder Type Optical viewfinder Optical viewfinder
    Viewfinder Field of View 100%
    Viewfinder Magnification 0.68x
    LCD Framing Live View
    Rear LCD Size 2.8inch 2.5inch
    LCD Resolution 461k dots 230k dots
    LCD Attachment Swivel screen Fixed screen
    Shooting Specs Canon G12 Leica M9
    Focus System Contrast-detect AF Manual Focus
    Continuous Shooting 1.1 shutter flaps/s 2 shutter flaps/s
    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 no
    Connectivity Specs Canon G12 Leica M9
    External Flash Hotshoe Hotshoe
    USB Connector USB 2.0 USB 2.0
    HDMI Port mini HDMI no HDMI
    Wifi Support no Wifi no Wifi
    Body Specs Canon G12 Leica M9
    Battery Type Canon NB-7L Leica BLI-312
    Battery Life (CIPA)370 shots per charge550 shots per charge
    Body Dimensions 112 x 76 x 48 mm
    (4.4 x 3.0 x 1.9 in)
    139 x 80 x 37 mm
    (5.5 x 3.1 x 1.5 in)
    Camera Weight 401 g (14.1 oz) 585 g (20.6 oz)
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