Canon G15 vs Leica M8

The Canon PowerShot G15 and the Leica M8 are two digital cameras that were announced, respectively, in September 2012 and September 2006. The G15 is a fixed lens compact, while the M8 is a rangefinder-focusing mirrorless. The cameras are based on a 1/1.7-inch (G15) and an APS-H (M8) sensor. The Canon has a resolution of 12 megapixels, whereas the Leica provides 10.4 MP.

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

Headline Specifications

Canon G15		Leica M8
Fixed lens compact camera		Rangefinder camera
28-140mm f/1.8-2.8		Leica M mount lenses
12 MP – 1/1.7" sensor		10.4 MP – APS-H sensor
1080/24p Video		no Video
ISO 80-12,800		ISO 160-2,500
Optical viewfinder		Optical viewfinder
3.0" LCD – 922k dots		2.5" LCD – 230k dots
Fixed screen (not touch-sensitive)		Fixed screen (not touch-sensitive)
2.1 shutter flaps per second		2 shutter flaps per second
350 shots per battery charge		550 shots per battery charge
107 x 76 x 40 mm, 352 g		139 x 80 x 37 mm, 591 g

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Going beyond this snapshot of core features and characteristics, what are the differences between the Canon PowerShot G15 and the Leica M8? 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 physical size and weight of the Canon G15 and the Leica M8 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 size dimensions are rounded to the nearest millimeter.

The M8 can be obtained in two different colors (black, silver), while the G15 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 Leica M8 is notably larger (37 percent) than the Canon G15. In this context, it is worth noting that neither the G15 nor the M8 are weather-sealed.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the G15 has a lens built in, whereas the M8 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 M8 and their specifications in the Leica M Lens Catalog.

Concerning battery life, the G15 gets 350 shots out of its Canon NB-10L battery, while the M8 can take 550 images on a single charge of its Leica BLI-312 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.

Body Specifications

		Camera Model	Camera Width	Camera Height	Camera Depth	Camera Weight	Battery Life	Weather Sealing	Camera Launch	Launch Price (USD)	Street Price
1.		Canon G15	107 mm	76 mm	40 mm	352 g	350	n	Sep 2012	499	ebay.com
2.		Leica M8	139 mm	80 mm	37 mm	591 g	550	n	Sep 2006	5,499	ebay.com
3.		Canon 400D	127 mm	84 mm	65 mm	556 g	370	n	Aug 2006	799	ebay.com
4.		Canon G12	112 mm	76 mm	48 mm	401 g	370	n	Sep 2010	499	ebay.com
5.		Canon G16	109 mm	76 mm	40 mm	356 g	360	n	Aug 2013	549	ebay.com
6.		Canon S120	100 mm	59 mm	29 mm	217 g	230	n	Aug 2013	449	ebay.com
7.		Canon SX50	123 mm	87 mm	106 mm	595 g	315	n	Sep 2012	429	ebay.com
8.		Canon SX60	128 mm	93 mm	114 mm	650 g	340	n	Sep 2014	549	ebay.com
9.		Fujifilm X10	117 mm	70 mm	57 mm	350 g	270	n	Sep 2011	599	ebay.com
10.		Fujifilm X20	117 mm	70 mm	57 mm	353 g	270	n	Jan 2013	599	ebay.com
11.		Leica M9	139 mm	80 mm	37 mm	585 g	550	n	Sep 2009	7,999	ebay.com
12.		Leica M10	139 mm	80 mm	39 mm	660 g	210	Y	Jan 2017	6,595	ebay.com
13.		Nikon D80	132 mm	103 mm	77 mm	668 g	600	n	Aug 2006	999	ebay.com
14.		Nikon P7800	119 mm	78 mm	50 mm	399 g	350	n	Sep 2013	549	ebay.com
15.		Panasonic FZ150	124 mm	82 mm	92 mm	528 g	410	n	Aug 2011	499	ebay.com
16.		Panasonic L10	135 mm	96 mm	78 mm	556 g	450	n	Aug 2007	599	ebay.com
17.		Panasonic LX7	111 mm	68 mm	46 mm	298 g	330	n	Jul 2012	499	ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
Convert to Imperial

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 G15 was launched at a lower price than the M8, 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.

Sensor comparison

The imaging sensor is at the core of digital cameras and its size is one of the main determining factors 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 associated with larger, more expensive camera bodies and lenses.

Of the two cameras under consideration, the Canon G15 features a 1/1.7-inch sensor and the Leica M8 an APS-H sensor. The sensor area in the M8 is 1030 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 4.6 and 1.3. The sensor in the G15 has a native 4:3 aspect ratio, while the one in the M8 offers a 3:2 aspect.

Despite having a smaller sensor, the Canon G15 offers a higher resolution of 12 megapixels, compared with 10.4 MP of the Leica M8. 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 1.89μm versus 6.84μm for the M8). However, it should be noted that the G15 is much more recent (by 6 years) than the M8, 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 M8 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Canon G15 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the G15 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 Leica M8 are 19.7 x 13.2 inches or 50 x 33.4 cm for good quality, 15.7 x 10.5 inches or 40 x 26.7 cm for very good quality, and 13.1 x 8.8 inches or 33.3 x 22.3 cm for excellent quality prints.

The Canon PowerShot G15 has a native sensitivity range from ISO 80 to ISO 12800. The corresponding ISO settings for the Leica M8 are ISO 160 to ISO 2500 (no boost).

In terms of underlying technology, the G15 is build around a CMOS sensor, while the M8 uses a CCD 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 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 M8 offers substantially better image quality than the G15 (overall score 13 points higher). The advantage is based on 1.2 bits higher color depth, 0.2 EV of lower dynamic range, and 2 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.

Sensor Characteristics

		Camera Model	Sensor Class	Resolution (MP)	Horiz. Pixels	Vert. Pixels	Video Format	DXO Portrait	DXO Landscape	DXO Sports	DXO Overall
1.		Canon G15	1/1.7	12.0	4000	3000	1080/24p	19.9	11.5	165	46
2.		Leica M8	APS-H	10.4	3936	2630	none	21.1	11.3	663	59
3.		Canon 400D	APS-C	10.1	3888	2592	none	22.1	11.0	664	62
4.		Canon G12	1/1.7	10.0	3648	2736	720/24p	20.4	11.2	161	47
5.		Canon G16	1/1.7	12.0	4000	3000	1080/60p	21.0	11.7	230	54
6.		Canon S120	1/1.7	12.0	4000	3000	1080/60p	21.3	11.9	246	56
7.		Canon SX50	1/2.3	12.0	4000	3000	1080/24p	20.3	11.2	179	47
8.		Canon SX60	1/2.3	14.2	4608	3072	1080/60p	19.2	10.8	127	39
9.		Fujifilm X10	2/3	12.0	4000	3000	1080/30p	20.5	11.3	245	50
10.		Fujifilm X20	2/3	12.0	4000	3000	1080/60p	20.1	10.9	-462	46
11.		Leica M9	Full Frame	18.1	5212	3472	none	22.5	11.7	884	69
12.		Leica M10	Full Frame	23.8	5952	3992	none	24.4	13.2	2133	86
13.		Nikon D80	APS-C	10.0	3872	2592	none	22.1	11.2	524	61
14.		Nikon P7800	1/1.7	12.0	4000	3000	1080/30p	21.2	11.7	200	54
15.		Panasonic FZ150	1/2.3	12.0	4000	3000	1080/60p	19.4	10.9	132	40
16.		Panasonic L10	Four Thirds	10.0	3648	2736	none	21.3	10.8	429	55
17.		Panasonic LX7	1/1.7	10.0	3648	2736	1080/60p	20.7	11.7	147	50
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 G15 indeed provides movie recording capabilities, while the M8 does not. The highest resolution format that the G15 can use is 1080/24p.

Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. The G15 and the M8 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 table below summarizes some of the other core capabilities of the Canon G15 and Leica M8 in connection with corresponding information for a sample of similar cameras.

Core Features

		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 G15	optical	n	3.0 / 922	fixed	n	1/4000s	2.1/s	Y	Y
2.		Leica M8	optical	n	2.5 / 230	fixed	n	1/8000s	2.0/s	n	n
3.		Canon 400D	optical	n	2.5 / 230	fixed	n	1/4000s	3.0/s	Y	n
4.		Canon G12	optical	n	2.8 / 461	swivel	n	1/4000s	1.1/s	Y	Y
5.		Canon G16	optical	n	3.0 / 922	fixed	n	1/4000s	2.2/s	Y	Y
6.		Canon S120	none	n	3.0 / 922	fixed	Y	1/2000s	12.1/s	Y	Y
7.		Canon SX50	202	n	3.0 / 461	swivel	n	1/2000s	2.2/s	Y	Y
8.		Canon SX60	922	n	3.0 / 922	swivel	n	1/2000s	6.4/s	Y	Y
9.		Fujifilm X10	optical	n	2.8 / 460	fixed	n	1/4000s	10.0/s	Y	Y
10.		Fujifilm X20	optical	n	2.8 / 460	fixed	n	1/4000s	12.0/s	Y	Y
11.		Leica M9	optical	n	2.5 / 230	fixed	n	1/4000s	2.0/s	n	n
12.		Leica M10	optical	n	3.0 / 1037	fixed	n	1/4000s	5.0/s	n	n
13.		Nikon D80	optical	n	2.5 / 230	fixed	n	1/4000s	3.0/s	Y	n
14.		Nikon P7800	921	n	3.0 / 921	swivel	n	1/4000s	8.0/s	Y	Y
15.		Panasonic FZ150	202	n	3.0 / 460	swivel	n	1/2000s	12.0/s	Y	Y
16.		Panasonic L10	optical	n	2.5 / 207	swivel	n	1/4000s	3.0/s	Y	n
17.		Panasonic LX7	optional	n	3.0 / 920	fixed	n	1/4000s	11.0/s	Y	Y
Note: *) 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 G15 has one, while the M8 does not. While the built-in flash of the G15 is not very powerful, it can at times be useful as a fill-in light.

Concerning the storage of imaging data, both the G15 and the M8 write their files to SDXC cards.

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 G15 and Leica M8 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

Input-Output Connections

		Camera Model	Hotshoe Port	Internal Mic / Speaker	Microphone Port	Headphone Port	HDMI Port	USB Port	WiFi Support	NFC Support	Bluetooth Support
1.		Canon G15	Y	stereo / mono	-	-	mini	2.0	-	-	-
2.		Leica M8	Y	- / -	-	-	-	2.0	-	-	-
3.		Canon 400D	Y	- / -	-	-	-	2.0	-	-	-
4.		Canon G12	Y	stereo / mono	-	-	mini	2.0	-	-	-
5.		Canon G16	Y	stereo / mono	-	-	mini	2.0	Y	-	-
6.		Canon S120	-	stereo / mono	-	-	mini	2.0	Y	-	-
7.		Canon SX50	Y	stereo / mono	-	-	mini	2.0	-	-	-
8.		Canon SX60	Y	stereo / mono	Y	-	mini	2.0	Y	Y	-
9.		Fujifilm X10	Y	stereo / mono	-	-	mini	2.0	-	-	-
10.		Fujifilm X20	Y	stereo / mono	-	-	micro	2.0	-	-	-
11.		Leica M9	Y	- / -	-	-	-	2.0	-	-	-
12.		Leica M10	Y	- / -	-	-	-	-	Y	-	-
13.		Nikon D80	Y	- / -	-	-	-	2.0	-	-	-
14.		Nikon P7800	Y	stereo / mono	Y	-	mini	2.0	-	-	-
15.		Panasonic FZ150	Y	stereo / -	-	-	mini	2.0	-	-	-
16.		Panasonic L10	Y	- / -	-	-	-	2.0	-	-	-
17.		Panasonic LX7	Y	stereo / mono	-	-	mini	2.0	-	-	-

Both the G15 and the M8 have been discontinued, but can regularly be found used on ebay. The M8 was replaced by the Leica M9, while the G15 was followed by the Canon G16. Further information on the features and operation of the G15 and M8 can be found, respectively, in the Canon G15 Manual (free pdf) or the online Leica M8 Manual.

Review summary

So what conclusions can be drawn? Is the Canon G15 better than the Leica M8 or vice versa? The listing below highlights the relative strengths of the two models.

Reasons to prefer the Canon PowerShot G15:

• More detail: Offers more megapixels (12 vs 10.4MP) with a 6% higher linear resolution.
• 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 1080/24p movies.
• Larger screen: Has a bigger rear LCD (3.0" vs 2.5") for image review and settings control.
• More detailed LCD: Has a higher resolution rear screen (922k vs 230k dots).
• Ready to shoot: Has a lens built-in, whereas the M8 requires a separate lens.
• More compact: Is smaller (107x76mm 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 M8).
• 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: Reflects 6 years of technical progress since the M8 launch.

Advantages of the Leica M8:

• Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
• Better image quality: Scores substantially higher (13 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 stops ISO advantage).
• Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
• More flexible: Takes interchangeable lenses and can thus be used with different optics.
• Longer lasting: Gets more shots (550 versus 350) out of a single battery charge.
• More prestigious: Has the Leica luxury appeal, which ensures a high resale value.
• More heavily discounted: Has been around for much longer (launched in September 2006).

If the count of individual advantages (bullet points above) is taken as a guide, the G15 emerges as the winner of the contest (12 : 9 points). However, the relevance of individual strengths will vary across photographers, so that you might want to apply your own weighing scheme to the summary points when reflecting and deciding 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.

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 G15 or the M8. 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 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.

Expert Camera Reviews

		Camera   Model	AP   score	CL   score	DCW   score	DPR   score	EPZ   score	PB   score	Camera Launch	Launch Price (USD)	Street Price
1.		Canon G15	4/5	+	..	76/100	4.5/5	4.5/5	Sep 2012	499	ebay.com
2.		Leica M8	..	..	..	+ +	..	..	Sep 2006	5,499	ebay.com
3.		Canon 400D	..	+ +	..	+ +	o	4/5	Aug 2006	799	ebay.com
4.		Canon G12	4/5	+	..	73/100	4.5/5	4.5/5	Sep 2010	499	ebay.com
5.		Canon G16	4/5	+	..	..	4.5/5	4.5/5	Aug 2013	549	ebay.com
6.		Canon S120	..	+ +	..	..	4.5/5	4.5/5	Aug 2013	449	ebay.com
7.		Canon SX50	3/5	+ +	..	72/100	4.5/5	4.5/5	Sep 2012	429	ebay.com
8.		Canon SX60	3/5	+ +	..	75/100	4/5	4.5/5	Sep 2014	549	ebay.com
9.		Fujifilm X10	..	..	..	76/100	4/5	4.5/5	Sep 2011	599	ebay.com
10.		Fujifilm X20	4/5	+ +	..	77/100	4.5/5	5/5	Jan 2013	599	ebay.com
11.		Leica M9	..	..	..	..	4.5/5	..	Sep 2009	7,999	ebay.com
12.		Leica M10	4.5/5	..	..	..	4/5	4.5/5	Jan 2017	6,595	ebay.com
13.		Nikon D80	..	+	..	+ +	o	4.5/5	Aug 2006	999	ebay.com
14.		Nikon P7800	3/5	..	..	..	4/5	4.5/5	Sep 2013	549	ebay.com
15.		Panasonic FZ150	3/5	+ +	..	76/100	4/5	4.5/5	Aug 2011	499	ebay.com
16.		Panasonic L10	..	85/100	..	+	3.5/5	4/5	Aug 2007	599	ebay.com
17.		Panasonic LX7	3/5	+ +	..	75/100	4/5	4.5/5	Jul 2012	499	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 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 make a corresponding selection in the search boxes 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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