Leica M8 vs Canon 40D

The Leica M8 and the Canon EOS 40D are two enthusiast cameras that were revealed to the public, respectively, in September 2006 and August 2007. The M8 is a rangefinder-focusing mirrorless camera, while the 40D is a DSLR. The cameras are based on an APS-H (M8) and an APS-C (40D) sensor. The Leica has a resolution of 10.4 megapixels, whereas the Canon provides 10.1 MP.

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

Headline Specifications

Leica M8		Canon 40D
Rangefinder camera		Digital single lens reflex
Leica M mount lenses		Canon EF mount lenses
10.4 MP – APS-H sensor		10.1 MP – APS-C sensor
no Video		no Video
ISO 160-2,500		ISO 100-1,600 (100 - 3,200)
Optical viewfinder		Optical viewfinder
2.5" LCD – 230k dots		3.0" LCD – 230k dots
Fixed screen (not touch-sensitive)		Fixed screen (not touch-sensitive)
2 shutter flaps per second		6.5 shutter flaps per second
550 shots per battery charge		750 shots per battery charge
139 x 80 x 37 mm, 591 g		146 x 108 x 74 mm, 822 g

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Going beyond this snapshot of core features and characteristics, what are the differences between the Leica M8 and the Canon EOS 40D? 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 Leica M8 and the Canon 40D are illustrated 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 width, height and depth dimensions are rounded to the nearest millimeter.

The M8 can be obtained in two different colors (black, silver), while the 40D 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 40D is notably larger (42 percent) than the Leica M8. Moreover, the 40D is substantially heavier (39 percent) than the M8. In this context, it is worth noting that neither the M8 nor the 40D are weather-sealed.

The above size and weight comparisons are to some extent incomplete since they do not consider the interchangeable lenses that both of these cameras require. A larger imaging sensor will tend to go along with bigger and heavier lenses, although exceptions exist. You can compare the optics available for the two cameras in the Leica M Lens Catalog (M8) and the Canon EF Lens Catalog (40D).

Concerning battery life, the M8 gets 550 shots out of its Leica BLI-312 battery, while the 40D can take 750 images on a single charge of its Canon BP-511A power pack.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. 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.

Body Specifications

#		Camera Model	Camera Width	Camera Height	Camera Depth	Camera Weight	Battery Life	Weather Sealing	Camera Launch	Launch Price (USD)	Street Price
1.		Leica M8	139 mm	80 mm	37 mm	591 g	550	n	Sep 2006	5,499	ebay.com
2.		Canon 40D	146 mm	108 mm	74 mm	822 g	750	n	Aug 2007	1,299	ebay.com
3.		Canon T3	130 mm	100 mm	78 mm	495 g	700	n	Feb 2011	449	ebay.com
4.		Canon 60D	145 mm	106 mm	79 mm	755 g	1100	Y	Aug 2010	1,399	ebay.com
5.		Canon 50D	146 mm	108 mm	74 mm	822 g	800	Y	Aug 2008	1,299	ebay.com
6.		Canon 30D	144 mm	106 mm	74 mm	785 g	750	n	Feb 2006	1,399	ebay.com
7.		Canon XTi	127 mm	84 mm	65 mm	556 g	370	n	Aug 2006	799	ebay.com
8.		Canon 20D	144 mm	106 mm	72 mm	770 g	700	n	Aug 2004	1,499	ebay.com
9.		Canon 10D	150 mm	107 mm	75 mm	850 g	500	n	Feb 2003	1,999	ebay.com
10.		Leica M10	139 mm	80 mm	39 mm	660 g	210	Y	Jan 2017	6,595	ebay.com
11.		Leica M Typ 262	139 mm	80 mm	42 mm	680 g	400	Y	Nov 2015	5,195	ebay.com
12.		Leica M9	139 mm	80 mm	37 mm	585 g	550	n	Sep 2009	7,999	ebay.com
13.		Nikon D3000	126 mm	97 mm	64 mm	536 g	500	n	Jul 2009	599	ebay.com
14.		Nikon D5000	127 mm	104 mm	80 mm	590 g	510	n	Apr 2009	749	ebay.com
15.		Nikon D40X	124 mm	94 mm	64 mm	522 g	520	n	Mar 2007	729	ebay.com
16.		Nikon D80	132 mm	103 mm	77 mm	668 g	600	n	Aug 2006	999	ebay.com
17.		Panasonic L10	135 mm	96 mm	78 mm	556 g	450	n	Aug 2007	599	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

Any camera decision will naturally be influenced heavily by the price. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The 40D was launched at a markedly lower price (by 76 percent) than the M8, which puts it into a different market segment. 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. 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 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. 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 Leica M8 features an APS-H sensor and the Canon 40D an APS-C sensor. The sensor area in the 40D is 32 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.3 and 1.6. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

With 10.4MP, the M8 offers a slightly higher resolution than the 40D (10.1MP), but the M8 nevertheless has larger individual pixels (pixel pitch of 6.84μm versus 5.73μm for the 40D) due to its larger sensor. However, the 40D is a somewhat more recent model (by 11 months) than the M8, and its sensor might have benefitted from technological advances during this time that enhance the light gathering capacity of its pixels. 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 Leica M8 has a native sensitivity range from ISO 160 to ISO 2500. The corresponding ISO settings for the Canon EOS 40D are ISO 100 to ISO 1600, with the possibility to increase the ISO range to 100-3200.

In terms of underlying technology, the M8 is build around a CCD sensor, while the 40D 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.

Consistent information on actual sensor performance is available from DXO Mark for many cameras. 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 40D has a markedly higher DXO score than the M8 (overall score 5 points higher), which will translate into better image quality. The advantage is based on 1 bits higher color depth, and 0.1 stops in additional low light sensitivity. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.

Sensor Characteristics

#		Camera Model	Sensor Class	Resolution (MP)	Horiz. Pixels	Vert. Pixels	Video Format	DXO Portrait	DXO Landscape	DXO Sports	DXO Overall
1.		Leica M8	APS-H	10.4	3936	2630	none	21.1	11.3	663	59
2.		Canon 40D	APS-C	10.1	3888	2592	none	22.1	11.3	703	64
3.		Canon T3	APS-C	12.2	4272	2848	720/30p	21.9	11.0	755	62
4.		Canon 60D	APS-C	17.9	5184	3456	1080/30p	22.2	11.5	813	66
5.		Canon 50D	APS-C	15.1	4752	3168	none	21.8	11.4	696	63
6.		Canon 30D	APS-C	8.2	3504	2336	none	21.5	10.8	736	59
7.		Canon XTi	APS-C	10.1	3888	2592	none	22.1	11.0	664	62
8.		Canon 20D	APS-C	8.2	3504	2336	none	21.9	11.0	721	62
9.		Canon 10D	APS-C	6.3	3072	2048	none	21.1	10.9	571	57
10.		Leica M10	Full Frame	23.8	5952	3992	none	24.4	13.2	2133	86
11.		Leica M Typ 262	Full Frame	23.7	5952	3976	none	24.8	13.7	2478	90
12.		Leica M9	Full Frame	18.1	5212	3472	none	22.5	11.7	884	69
13.		Nikon D3000	APS-C	10.0	3872	2592	none	22.3	11.1	563	62
14.		Nikon D5000	APS-C	12.2	4288	2848	720/24p	22.7	12.5	868	72
15.		Nikon D40X	APS-C	10.0	3872	2592	none	22.4	11.4	516	63
16.		Nikon D80	APS-C	10.0	3872	2592	none	22.1	11.2	524	61
17.		Panasonic L10	Four Thirds	10.0	3648	2736	none	21.3	10.8	429	55
Note: DXO values in italics represent estimates based on sensor size and age.

Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. The M8 and the 40D 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 adjacent table lists some of the other core features of the Leica M8 and Canon 40D along with similar information for a selection of comparators.

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.		Leica M8	optical	n	2.5 / 230	fixed	n	1/8000s	2.0/s	n	n
2.		Canon 40D	optical	Y	3.0 / 230	fixed	n	1/8000s	6.5/s	Y	n
3.		Canon T3	optical	n	2.7 / 230	fixed	n	1/4000s	3.0/s	Y	n
4.		Canon 60D	optical	Y	3.0 / 1040	swivel	n	1/8000s	5.3/s	Y	n
5.		Canon 50D	optical	Y	3.0 / 920	fixed	n	1/8000s	6.3/s	Y	n
6.		Canon 30D	optical	Y	2.5 / 230	fixed	n	1/8000s	5.0/s	Y	n
7.		Canon XTi	optical	n	2.5 / 230	fixed	n	1/4000s	3.0/s	Y	n
8.		Canon 20D	optical	Y	1.8 / 118	fixed	n	1/8000s	5.0/s	Y	n
9.		Canon 10D	optical	Y	1.8 / 118	fixed	n	1/4000s	3.0/s	Y	n
10.		Leica M10	optical	n	3.0 / 1037	fixed	n	1/4000s	5.0/s	n	n
11.		Leica M Typ 262	optical	n	3.0 / 921	fixed	n	1/4000s	3.0/s	n	n
12.		Leica M9	optical	n	2.5 / 230	fixed	n	1/4000s	2.0/s	n	n
13.		Nikon D3000	optical	n	3.0 / 230	fixed	n	1/4000s	3.0/s	Y	n
14.		Nikon D5000	optical	n	2.7 / 230	full-flex	n	1/4000s	4.0/s	Y	n
15.		Nikon D40X	optical	n	2.5 / 230	fixed	n	1/4000s	3.0/s	Y	n
16.		Nikon D80	optical	n	2.5 / 230	fixed	n	1/4000s	3.0/s	Y	n
17.		Panasonic L10	optical	n	2.5 / 207	swivel	n	1/4000s	3.0/s	Y	n
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One feature that is present on the 40D, but is missing on the M8 is a top-level LCD. While being, of course, smaller than the rear screen, the control panel conveys some of the essential shooting information and can be convenient for quick and easy settings verification.

The M8 writes its imaging data to SDXC cards, while the 40D uses Compact Flash 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 Leica M8 and Canon EOS 40D 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.		Leica M8	Y	- / -	-	-	-	2.0	-	-	-
2.		Canon 40D	Y	- / -	-	-	-	2.0	-	-	-
3.		Canon T3	Y	stereo / mono	-	-	mini	2.0	-	-	-
4.		Canon 60D	Y	mono / mono	Y	-	mini	2.0	-	-	-
5.		Canon 50D	Y	- / -	-	-	mini	2.0	-	-	-
6.		Canon 30D	Y	- / -	-	-	-	2.0	-	-	-
7.		Canon XTi	Y	- / -	-	-	-	2.0	-	-	-
8.		Canon 20D	Y	- / -	-	-	-	1.1	-	-	-
9.		Canon 10D	Y	- / -	-	-	-	1.1	-	-	-
10.		Leica M10	Y	- / -	-	-	-	-	Y	-	-
11.		Leica M Typ 262	Y	- / -	-	-	-	2.0	-	-	-
12.		Leica M9	Y	- / -	-	-	-	2.0	-	-	-
13.		Nikon D3000	Y	- / -	-	-	-	2.0	-	-	-
14.		Nikon D5000	Y	mono / mono	-	-	mini	2.0	-	-	-
15.		Nikon D40X	Y	- / -	-	-	-	2.0	-	-	-
16.		Nikon D80	Y	- / -	-	-	-	2.0	-	-	-
17.		Panasonic L10	Y	- / -	-	-	-	2.0	-	-	-

Studio photographers will appreciate that the Canon 40D (unlike the M8) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the M8 and the 40D have been discontinued, but can regularly be found used on ebay. The M8 was replaced by the Leica M9, while the 40D was followed by the Canon 50D. Further information on the features and operation of the M8 and 40D can be found, respectively, in the Leica M8 Manual (free pdf) or the online Canon 40D Manual.

Review summary

So how do things add up? Is there a clear favorite between the Leica M8 and the Canon 40D? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.

Arguments in favor of the Leica M8:

• Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
• More compact: Is smaller (139x80mm vs 146x108mm) and thus needs less room in the bag.
• Less heavy: Is lighter (by 231g or 28 percent) and hence easier to carry around.
• More prestigious: Has the Leica luxury appeal, which ensures a high resale price.
• More heavily discounted: Has been on the market for longer (launched in September 2006).

Advantages of the Canon EOS 40D:

• Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
• Better image quality: Scores markedly higher (5 points) in the DXO overall evaluation.
• Easier setting verification: Features a control panel on top to check shooting parameters.
• Larger screen: Has a bigger rear LCD (3.0" vs 2.5") for image review and settings control.
• Faster burst: Shoots at higher frequency (6.5 vs 2 flaps/sec) to capture the decisive moment.
• Longer lasting: Gets more shots (750 versus 550) out of a single battery charge.
• Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
• Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
• More affordable: Was introduced into a lower priced category (76 percent cheaper at launch).
• More modern: Was introduced somewhat (11 months) more recently.

If the count of individual advantages (bullet points above) is taken as a guide, the 40D is the clear winner of the contest (10 : 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 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.

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 M8 or the 40D perform in practice. 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.		Leica M8	..	..	..	+ +	..	..	Sep 2006	5,499	ebay.com
2.		Canon 40D	..	+ +	..	+ +	4.5/5	4.5/5	Aug 2007	1,299	ebay.com
3.		Canon T3	..	80/100	..	69/100	4/5	4.5/5	Feb 2011	449	ebay.com
4.		Canon 60D	5/5	+	..	79/100	4/5	4.5/5	Aug 2010	1,399	ebay.com
5.		Canon 50D	..	+ +	..	+ +	4.5/5	4.5/5	Aug 2008	1,299	ebay.com
6.		Canon 30D	..	+ +	..	+ +	o	..	Feb 2006	1,399	ebay.com
7.		Canon XTi	..	+ +	..	+ +	o	4/5	Aug 2006	799	ebay.com
8.		Canon 20D	..	..	..	+ +	..	..	Aug 2004	1,499	ebay.com
9.		Canon 10D	..	..	..	+ +	..	..	Feb 2003	1,999	ebay.com
10.		Leica M10	4.5/5	..	..	..	4/5	4.5/5	Jan 2017	6,595	ebay.com
11.		Leica M Typ 262	..	..	..	..	..	..	Nov 2015	5,195	ebay.com
12.		Leica M9	..	..	..	..	4.5/5	..	Sep 2009	7,999	ebay.com
13.		Nikon D3000	..	+	..	72/100	4/5	4.5/5	Jul 2009	599	ebay.com
14.		Nikon D5000	..	+ +	..	75/100	4/5	4.5/5	Apr 2009	749	ebay.com
15.		Nikon D40X	..	79/100	..	+ +	4/5	4/5	Mar 2007	729	ebay.com
16.		Nikon D80	..	+	..	+ +	o	4.5/5	Aug 2006	999	ebay.com
17.		Panasonic L10	..	85/100	..	+	3.5/5	4/5	Aug 2007	599	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. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and comparisons of ratings among very different cameras or across long time periods have little meaning. 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. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.

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