Canon 40D vs Leica M-E Typ 240

The Canon EOS 40D and the Leica M-E (Typ 240) are two enthusiast cameras that were revealed to the public, respectively, in August 2007 and June 2019. The 40D is a DSLR, while the M-E Typ 240 is a rangefinder-focusing mirrorless camera. The cameras are based on an APS-C (40D) and a full frame (M-E Typ 240) sensor. The Canon has a resolution of 10.1 megapixels, whereas the Leica provides 23.7 MP.

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

Headline Specifications

Canon 40D		Leica M-E Typ 240
Digital single lens reflex		Rangefinder camera
Canon EF mount lenses		Leica M mount lenses
10.1 MP – APS-C sensor		23.7 MP – Full Frame sensor
no Video		1080/25p Video
ISO 100-1,600 (100 - 3,200)		ISO 200-6,400
Optical viewfinder		Optical viewfinder
3.0" LCD – 230k dots		3.0" LCD – 920k dots
Fixed screen (not touch-sensitive)		Fixed screen (not touch-sensitive)
6.5 shutter flaps per second		3 shutter flaps per second
not weather sealed		Weathersealed body
750 shots per battery charge		500 shots per battery charge
146 x 108 x 74 mm, 822 g		139 x 80 x 42 mm, 680 g

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Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS 40D and the Leica M-E (Typ 240)? 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 side-by-side display below illustrates the physical size and weight of the Canon 40D and the Leica M-E Typ 240. The two cameras are presented according to their relative size. Three consecutive views from the front, the top, and the rear side are shown. All width, height and depth dimensions are rounded to the nearest millimeter.

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Leica M-E Typ 240 is notably smaller (29 percent) than the Canon 40D. Moreover, the M-E Typ 240 is markedly lighter (17 percent) than the 40D. It is noteworthy in this context that the M-E Typ 240 is splash and dust-proof, while the 40D does not feature any corresponding weather-sealing.

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 Canon EF Lens Catalog (40D) and the Leica M Lens Catalog (M-E Typ 240).

Concerning battery life, the 40D gets 750 shots out of its Canon BP-511A battery, while the M-E Typ 240 can take 500 images on a single charge of its Leica BP-SCL2 power pack.

The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. 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.

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 40D	146 mm	108 mm	74 mm	822 g	750	n	Aug 2007	1,299	ebay.com
2.		Leica M-E Typ 240	139 mm	80 mm	42 mm	680 g	500	Y	Jun 2019	3,999	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 XS	126 mm	98 mm	65 mm	502 g	500	n	Jun 2008	449	ebay.com
7.		Canon XSi	129 mm	98 mm	62 mm	524 g	500	n	Jan 2008	799	ebay.com
8.		Canon 30D	144 mm	106 mm	74 mm	785 g	750	n	Feb 2006	1,399	ebay.com
9.		Canon XTi	127 mm	84 mm	65 mm	556 g	370	n	Aug 2006	799	ebay.com
10.		Canon 20D	144 mm	106 mm	72 mm	770 g	700	n	Aug 2004	1,499	ebay.com
11.		Canon 10D	150 mm	107 mm	75 mm	850 g	500	n	Feb 2003	1,999	ebay.com
12.		Leica M10-R	139 mm	80 mm	39 mm	660 g	210	Y	Jul 2020	8,295	ebay.com
13.		Leica M10-P	139 mm	80 mm	39 mm	660 g	210	Y	Aug 2018	7,995	ebay.com
14.		Leica M10	139 mm	80 mm	39 mm	660 g	210	Y	Jan 2017	6,595	ebay.com
15.		Leica M Typ 262	139 mm	80 mm	42 mm	680 g	400	Y	Nov 2015	5,195	ebay.com
16.		Leica M Typ 240	139 mm	80 mm	42 mm	680 g	500	Y	Sep 2012	6,950	ebay.com
17.		Nikon D90	132 mm	103 mm	77 mm	703 g	850	n	Aug 2008	1,299	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 obviously take relative prices into account. The retail prices at the time of the camera’s release place the model in the market relative to other models in the producer’s line-up and the competition. The 40D was launched at a markedly lower price (by 68 percent) than the M-E Typ 240, 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.

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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Canon 40D features an APS-C sensor and the Leica M-E Typ 240 a full frame sensor. The sensor area in the M-E Typ 240 is 158 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.6 and 1.0. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

With 23.7MP, the M-E Typ 240 offers a higher resolution than the 40D (10.1MP), but the M-E Typ 240 nevertheless has larger individual pixels (pixel pitch of 6.01μm versus 5.73μm for the 40D) due to its larger sensor. Moreover, the M-E Typ 240 is a much more recent model (by 11 years and 10 months) than the 40D, 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 Leica M-E Typ 240 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the M-E Typ 240 for good quality output (200 dots per inch) amounts to 29.8 x 19.9 inches or 75.6 x 50.5 cm, for very good quality (250 dpi) 23.8 x 15.9 inches or 60.5 x 40.4 cm, and for excellent quality (300 dpi) 19.8 x 13.3 inches or 50.4 x 33.7 cm. The corresponding values for the Canon 40D are 19.4 x 13 inches or 49.4 x 32.9 cm for good quality, 15.6 x 10.4 inches or 39.5 x 26.3 cm for very good quality, and 13 x 8.6 inches or 32.9 x 21.9 cm for excellent quality prints.

The Canon EOS 40D has a native sensitivity range from ISO 100 to ISO 1600, which can be extended to ISO 100-3200. The corresponding ISO settings for the Leica M-E (Typ 240) are ISO 200 to ISO 6400, with the possibility to increase the ISO range to 100-6400.

Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) 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.

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. The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.

Sensor Characteristics

#		Camera Model	Sensor Class	Resolution (MP)	Horiz. Pixels	Vert. Pixels	Video Format	DXO Portrait	DXO Landscape	DXO Sports	DXO Overall
1.		Canon 40D	APS-C	10.1	3888	2592	none	22.1	11.3	703	64
2.		Leica M-E Typ 240	Full Frame	23.7	5952	3976	1080/25p	25.2	14.2	2821	94
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 XS	APS-C	10.1	3888	2592	none	22.0	10.9	719	62
7.		Canon XSi	APS-C	12.2	4272	2848	none	21.9	10.8	692	61
8.		Canon 30D	APS-C	8.2	3504	2336	none	21.5	10.8	736	59
9.		Canon XTi	APS-C	10.1	3888	2592	none	22.1	11.0	664	62
10.		Canon 20D	APS-C	8.2	3504	2336	none	21.9	11.0	721	62
11.		Canon 10D	APS-C	6.3	3072	2048	none	21.1	10.9	571	57
12.		Leica M10-R	Full Frame	40.9	7864	5200	none	25.3	14.3	2924	95
13.		Leica M10-P	Full Frame	23.8	5952	3992	none	25.1	14.1	2739	93
14.		Leica M10	Full Frame	23.8	5952	3992	none	24.4	13.2	2133	86
15.		Leica M Typ 262	Full Frame	23.7	5952	3976	none	24.8	13.7	2478	90
16.		Leica M Typ 240	Full Frame	23.7	5952	3976	1080/25p	24.0	13.3	1860	84
17.		Nikon D90	APS-C	12.2	4288	2848	720/24p	22.7	12.5	977	73
Note: DXO values in italics represent estimates based on sensor size and age.

Many modern cameras cannot only take still pictures, but also record videos. The M-E Typ 240 indeed provides for movie recording, while the 40D does not. The highest resolution format that the M-E Typ 240 can use is 1080/25p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. The 40D and the M-E Typ 240 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 viewfinder in the M-E Typ 240 offers a wider field of view (100%) than the one in the 40D (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the M-E Typ 240 has a higher magnification (0.68x vs 0.59x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The adjacent table lists some of the other core features of the Canon 40D and Leica M-E Typ 240 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.		Canon 40D	optical	Y	3.0 / 230	fixed	n	1/8000s	6.5/s	Y	n
2.		Leica M-E Typ 240	optical	n	3.0 / 920	fixed	n	1/4000s	3.0/s	n	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 XS	optical	n	2.5 / 230	fixed	n	1/4000s	3.0/s	Y	n
7.		Canon XSi	optical	n	3.0 / 230	fixed	n	1/4000s	3.5/s	Y	n
8.		Canon 30D	optical	Y	2.5 / 230	fixed	n	1/8000s	5.0/s	Y	n
9.		Canon XTi	optical	n	2.5 / 230	fixed	n	1/4000s	3.0/s	Y	n
10.		Canon 20D	optical	Y	1.8 / 118	fixed	n	1/8000s	5.0/s	Y	n
11.		Canon 10D	optical	Y	1.8 / 118	fixed	n	1/4000s	3.0/s	Y	n
12.		Leica M10-R	optical	n	3.0 / 1037	fixed	Y	1/4000s	4.5/s	n	n
13.		Leica M10-P	optical	n	3.0 / 1037	fixed	Y	1/4000s	5.0/s	n	n
14.		Leica M10	optical	n	3.0 / 1037	fixed	n	1/4000s	5.0/s	n	n
15.		Leica M Typ 262	optical	n	3.0 / 921	fixed	n	1/4000s	3.0/s	n	n
16.		Leica M Typ 240	optical	n	3.0 / 920	fixed	n	1/4000s	3.0/s	n	n
17.		Nikon D90	optical	Y	3.0 / 920	fixed	n	1/4000s	4.5/s	Y	n
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 40D has one, while the M-E Typ 240 does not. While the built-in flash of the 40D is not very powerful, it can at times be useful as a fill-in light.

The 40D writes its imaging data to Compact Flash cards, while the M-E Typ 240 uses 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 EOS 40D and Leica M-E (Typ 240) 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 40D	Y	- / -	-	-	-	2.0	-	-	-
2.		Leica M-E Typ 240	Y	mono / -	-	-	-	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 XS	Y	- / -	-	-	-	2.0	-	-	-
7.		Canon XSi	Y	- / -	-	-	mini	2.0	-	-	-
8.		Canon 30D	Y	- / -	-	-	-	2.0	-	-	-
9.		Canon XTi	Y	- / -	-	-	-	2.0	-	-	-
10.		Canon 20D	Y	- / -	-	-	-	1.1	-	-	-
11.		Canon 10D	Y	- / -	-	-	-	1.1	-	-	-
12.		Leica M10-R	Y	- / -	-	-	-	-	Y	-	-
13.		Leica M10-P	Y	- / -	-	-	-	-	Y	-	-
14.		Leica M10	Y	- / -	-	-	-	-	Y	-	-
15.		Leica M Typ 262	Y	- / -	-	-	-	2.0	-	-	-
16.		Leica M Typ 240	Y	stereo / mono	-	-	-	2.0	-	-	-
17.		Nikon D90	Y	mono / mono	-	-	mini	2.0	-	-	-

Studio photographers will appreciate that the Canon 40D (unlike the M-E Typ 240) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the 40D and the M-E Typ 240 have been discontinued, but can regularly be found used on ebay. The 40D was replaced by the Canon 50D, while the M-E Typ 240 does not have a direct successor. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Canon and Leica websites.

Review summary

So what conclusions can be drawn? Is the Canon 40D better than the Leica M-E Typ 240 or vice versa? Below is a summary of the relative strengths of each of the two contestants.

Arguments in favor of the Canon EOS 40D:

• Easier setting verification: Features an LCD display on top to control shooting parameters.
• Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
• Faster burst: Shoots at higher frequency (6.5 vs 3 flaps/sec) to capture the decisive moment.
• Longer lasting: Can take more shots (750 versus 500) on a single battery charge.
• Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
• Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
• More affordable: Was introduced into a lower priced category (68 percent cheaper at launch).
• More heavily discounted: Has been available for much longer (launched in August 2007).

Advantages of the Leica M-E (Typ 240):

• More detail: Has more megapixels (23.7 vs 10.1MP), which boosts linear resolution by 53%.
• Better image quality: Is equipped with a larger and more technologically advanced sensor.
• Richer colors: The sensor size advantage translates into images with better, more accurate colors.
• More dynamic range: Larger sensor captures a wider spectrum of light and dark details.
• Better low-light sensitivity: Larger sensor produces good images even in poorly lit environments.
• Broader imaging potential: Can capture not only stills but also 1080/25p video.
• More complete view: Has a viewfinder with a larger field of view (100% vs 95%).
• Larger viewfinder image: Features a viewfinder with a higher magnification (0.68x vs 0.59x).
• More detailed LCD: Has a higher resolution rear screen (920k vs 230k dots).
• More compact: Is smaller (139x80mm vs 146x108mm) and will fit more readily into a bag.
• Less heavy: Has a lower weight (by 142g or 17 percent) and is thus easier to take along.
• Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
• More prestigious: Has the Leica luxury appeal, which ensures a high resale value.
• More modern: Reflects 11 years and 10 months of technical progress since the 40D launch.

If the count of individual advantages (bullet points above) is taken as a guide, the M-E Typ 240 is the clear winner of the contest (14 : 8 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.

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 40D or the M-E Typ 240. 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 table below provides a synthesis of the camera assessments of some of the best known photo-gear 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 40D	..	+ +	..	+ +	4.5/5	4.5/5	Aug 2007	1,299	ebay.com
2.		Leica M-E Typ 240	..	..	..	..	..	..	Jun 2019	3,999	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 XS	..	82/100	..	+ +	3.5/5	4.5/5	Jun 2008	449	ebay.com
7.		Canon XSi	..	+ +	..	+ +	4/5	4.5/5	Jan 2008	799	ebay.com
8.		Canon 30D	..	+ +	..	+ +	o	..	Feb 2006	1,399	ebay.com
9.		Canon XTi	..	+ +	..	+ +	o	4/5	Aug 2006	799	ebay.com
10.		Canon 20D	..	..	..	+ +	..	..	Aug 2004	1,499	ebay.com
11.		Canon 10D	..	..	..	+ +	..	..	Feb 2003	1,999	ebay.com
12.		Leica M10-R	4.5/5	..	4/5	..	..	4/5	Jul 2020	8,295	ebay.com
13.		Leica M10-P	..	..	3/5	..	..	4/5	Aug 2018	7,995	ebay.com
14.		Leica M10	4.5/5	..	..	..	4/5	4.5/5	Jan 2017	6,595	ebay.com
15.		Leica M Typ 262	..	..	..	..	..	..	Nov 2015	5,195	ebay.com
16.		Leica M Typ 240	4/5	..	..	..	4/5	..	Sep 2012	6,950	ebay.com
17.		Nikon D90	..	+ +	..	+ +	4/5	4.5/5	Aug 2008	1,299	ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The above review scores should be interpreted with care, though. The assessments were made in relation to similar cameras of the same technological generation. Thus, a score needs to be put into the context of the launch date and the launch price 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 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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