Canon 250D vs Leica M9

The Canon EOS 250D (called Canon SL3 in some regions) and the Leica M9 are two digital cameras that were revealed to the public, respectively, in April 2019 and September 2009. The 250D is a DSLR, while the M9 is a rangefinder-focusing mirrorless camera. The cameras are based on an APS-C (250D) and a full frame (M9) sensor. The Canon has a resolution of 24 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 250D		Leica M9
Digital single lens reflex		Rangefinder camera
Canon EF mount lenses		Leica M mount lenses
24 MP – APS-C sensor		18.1 MP – Full Frame sensor
4K/25p Video		no Video
ISO 100-25,600 (100 - 51,200)		ISO 80-2,500
Optical viewfinder		Optical viewfinder
3.0" LCD – 1040k dots		2.5" LCD – 230k dots
Swivel touchscreen		Fixed screen (not touch-sensitive)
5 shutter flaps per second		2 shutter flaps per second
1070 shots per battery charge		550 shots per battery charge
122 x 93 x 70 mm, 449 g		139 x 80 x 37 mm, 585 g

Check 250D price at
amazon.com
Check M9 offers at
ebay.com

Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS 250D 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.

Body comparison

An illustration of the physical size and weight of the Canon 250D and the Leica M9 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 250D can be obtained in two different colors (black, white), while the M9 is also available in two color-versions, but different ones (black, silver).

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Leica M9 is somewhat smaller (2 percent) than the Canon 250D. However, the M9 is markedly heavier (30 percent) than the 250D. In this context, it is worth noting that neither the 250D nor the M9 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 Canon EF Lens Catalog (250D) and the Leica M Lens Catalog (M9).

Concerning battery life, the 250D gets 1070 shots out of its Canon LP-E17 battery, while the M9 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 250D	122 mm	93 mm	70 mm	449 g	1070	n	Apr 2019	599	amazon.com
2.		Leica M9	139 mm	80 mm	37 mm	585 g	550	n	Sep 2009	7,999	ebay.com
3.		Canon 850D	131 mm	103 mm	76 mm	515 g	800	n	Feb 2020	749	ebay.com
4.		Canon M50 Mark II	116 mm	88 mm	59 mm	387 g	305	n	Oct 2020	599	ebay.com
5.		Canon 2000D	129 mm	101 mm	78 mm	475 g	500	n	Feb 2018	449	amazon.com
6.		Canon 4000D	129 mm	102 mm	77 mm	436 g	500	n	Feb 2018	399	amazon.com
7.		Canon M50	116 mm	88 mm	59 mm	390 g	235	n	Feb 2018	779	ebay.com
8.		Canon 77D	131 mm	100 mm	76 mm	540 g	600	n	Feb 2017	899	ebay.com
9.		Canon 200D	122 mm	93 mm	70 mm	453 g	650	n	Jun 2017	549	ebay.com
10.		Canon 800D	131 mm	100 mm	76 mm	532 g	600	n	Feb 2017	749	ebay.com
11.		Canon 760D	132 mm	101 mm	78 mm	565 g	440	n	Feb 2015	649	ebay.com
12.		Canon T2i	129 mm	98 mm	62 mm	530 g	440	n	Feb 2010	699	ebay.com
13.		Fujifilm X-T100	121 mm	83 mm	47 mm	448 g	430	n	May 2018	599	ebay.com
14.		Leica M10	139 mm	80 mm	39 mm	660 g	210	Y	Jan 2017	6,595	ebay.com
15.		Leica X Vario	133 mm	73 mm	95 mm	680 g	450	n	Jun 2013	2,850	ebay.com
16.		Leica M Typ 240	139 mm	80 mm	42 mm	680 g	500	Y	Sep 2012	6,950	ebay.com
17.		Leica M8	139 mm	80 mm	37 mm	591 g	550	n	Sep 2006	5,499	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 listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The 250D was launched at a markedly lower price (by 93 percent) than the M9, which puts it into a different market segment. 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. Furthermore, a large sensor camera will give the photographer more possibilities to use shallow depth-of-field in order to isolate a subject from the background. On the downside, larger sensors tend to be more expensive and lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Canon 250D features an APS-C sensor and the Leica M9 a full frame sensor. The sensor area in the M9 is 160 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.

Despite having a smaller sensor, the Canon 250D offers a higher resolution of 24 megapixels, compared with 18.1 MP of the Leica M9. 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 3.72μm versus 6.91μm for the M9). However, it should be noted that the 250D is much more recent (by 9 years and 7 months) than the M9, 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 M9 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Canon 250D implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the 250D for good quality output (200 dots per inch) amounts to 30 x 20 inches or 76.2 x 50.8 cm, for very good quality (250 dpi) 24 x 16 inches or 61 x 40.6 cm, and for excellent quality (300 dpi) 20 x 13.3 inches or 50.8 x 33.9 cm. The corresponding values for the Leica M9 are 26.1 x 17.4 inches or 66.2 x 44.1 cm for good quality, 20.8 x 13.9 inches or 53 x 35.3 cm for very good quality, and 17.4 x 11.6 inches or 44.1 x 29.4 cm for excellent quality prints.

The 250D has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Canon EOS 250D has a native sensitivity range from ISO 100 to ISO 25600, which can be extended to ISO 100-51200. The corresponding ISO settings for the Leica M9 are ISO 80 to ISO 2500 (no boost).

In terms of underlying technology, the 250D is build around a CMOS sensor, while the M9 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.

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"). 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 250D	APS-C	24.0	6000	4000	4K/25p	23.9	13.4	1791	82
2.		Leica M9	Full Frame	18.1	5212	3472	none	22.5	11.7	884	69
3.		Canon 850D	APS-C	24.0	6000	4000	4K/24p	24.0	13.5	1873	83
4.		Canon M50 Mark II	APS-C	24.0	6000	4000	4K/24p	24.0	13.6	1939	83
5.		Canon 2000D	APS-C	24.0	6000	4000	1080/30p	22.6	11.9	1009	71
6.		Canon 4000D	APS-C	17.9	5184	3456	1080/30p	21.9	11.4	695	63
7.		Canon M50	APS-C	24.0	6000	4000	4K/24p	23.8	13.3	1684	81
8.		Canon 77D	APS-C	24.0	6000	4000	1080/60p	23.6	13.3	971	78
9.		Canon 200D	APS-C	24.0	6000	4000	1080/60p	23.6	13.4	1041	79
10.		Canon 800D	APS-C	24.0	6000	4000	1080/60p	23.7	13.1	1586	80
11.		Canon 760D	APS-C	24.0	6000	4000	1080/30p	22.6	12.0	915	70
12.		Canon T2i	APS-C	17.9	5184	3456	1080/30p	22.1	11.5	784	66
13.		Fujifilm X-T100	APS-C	24.0	6000	4000	4K/15p	24.0	13.4	1829	83
14.		Leica M10	Full Frame	23.8	5952	3992	none	24.4	13.2	2133	86
15.		Leica X Vario	APS-C	16.1	4928	3272	1080/30p	23.4	12.7	1320	78
16.		Leica M Typ 240	Full Frame	23.7	5952	3976	1080/25p	24.0	13.3	1860	84
17.		Leica M8	APS-H	10.4	3936	2630	none	21.1	11.3	663	59
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 250D indeed provides movie recording capabilities, while the M9 does not. The highest resolution format that the 250D can use is 4K/25p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. The 250D 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 viewfinder in the M9 offers a wider field of view (100%) than the one in the 250D (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the M9 has a higher magnification (0.68x vs 0.54x), 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 250D and Leica M9 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 250D	optical	n	3.0 / 1040	swivel	Y	1/4000s	5.0/s	Y	n
2.		Leica M9	optical	n	2.5 / 230	fixed	n	1/4000s	2.0/s	n	n
3.		Canon 850D	optical	n	3.0 / 1040	swivel	Y	1/4000s	7.5/s	Y	n
4.		Canon M50 Mark II	2360	n	3.0 / 1040	swivel	Y	1/4000s	10.0/s	Y	n
5.		Canon 2000D	optical	n	3.0 / 920	fixed	n	1/4000s	3.0/s	Y	n
6.		Canon 4000D	optical	n	2.7 / 230	fixed	n	1/4000s	3.0/s	Y	n
7.		Canon M50	2360	n	3.0 / 1040	swivel	Y	1/4000s	10.0/s	Y	n
8.		Canon 77D	optical	Y	3.0 / 1040	swivel	Y	1/4000s	6.0/s	Y	n
9.		Canon 200D	optical	n	3.0 / 1040	swivel	Y	1/4000s	5.0/s	Y	n
10.		Canon 800D	optical	n	3.0 / 1040	swivel	Y	1/4000s	6.0/s	Y	n
11.		Canon 760D	optical	Y	3.0 / 1040	swivel	Y	1/4000s	5.0/s	Y	n
12.		Canon T2i	optical	n	3.0 / 1040	fixed	n	1/4000s	3.7/s	Y	n
13.		Fujifilm X-T100	2360	n	3.0 / 1040	swivel	Y	1/4000s	6.0/s	Y	n
14.		Leica M10	optical	n	3.0 / 1037	fixed	n	1/4000s	5.0/s	n	n
15.		Leica X Vario	optional	n	3.0 / 920	fixed	n	1/2000s	5.0/s	Y	n
16.		Leica M Typ 240	optical	n	3.0 / 920	fixed	n	1/4000s	3.0/s	n	n
17.		Leica M8	optical	n	2.5 / 230	fixed	n	1/8000s	2.0/s	n	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 250D has one, while the M9 does not. While the built-in flash of the 250D is not very powerful, it can at times be useful as a fill-in light.

The Canon 250D has an intervalometer built-in. This enables the photographer to capture time lapse sequences, such as flower blooming, a sunset or moon rise, without purchasing an external camera trigger and related software.

Concerning the storage of imaging data, both the 250D and the M9 write their files to SDXC cards. The 250D supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the M9 cannot take advantage of Ultra High Speed SD 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 250D and Leica M9 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 250D	Y	stereo / mono	Y	-	mini	2.0	Y	-	Y
2.		Leica M9	Y	- / -	-	-	-	2.0	-	-	-
3.		Canon 850D	Y	stereo / mono	Y	-	mini	2.0	Y	-	Y
4.		Canon M50 Mark II	Y	stereo / mono	Y	-	micro	2.0	Y	-	Y
5.		Canon 2000D	Y	mono / mono	-	-	mini	2.0	Y	Y	-
6.		Canon 4000D	Y	mono / mono	-	-	mini	2.0	Y	Y	-
7.		Canon M50	Y	stereo / mono	Y	-	micro	2.0	Y	-	Y
8.		Canon 77D	Y	stereo / mono	Y	-	mini	2.0	Y	Y	Y
9.		Canon 200D	Y	stereo / mono	Y	-	mini	2.0	Y	Y	Y
10.		Canon 800D	Y	stereo / mono	Y	-	mini	2.0	Y	Y	Y
11.		Canon 760D	Y	stereo / mono	Y	-	mini	2.0	Y	Y	-
12.		Canon T2i	Y	stereo / -	Y	-	mini	2.0	-	-	-
13.		Fujifilm X-T100	Y	stereo / mono	Y	-	micro	2.0	Y	-	Y
14.		Leica M10	Y	- / -	-	-	-	-	Y	-	-
15.		Leica X Vario	Y	stereo / mono	-	-	mini	2.0	-	-	-
16.		Leica M Typ 240	Y	stereo / mono	-	-	-	2.0	-	-	-
17.		Leica M8	Y	- / -	-	-	-	2.0	-	-	-

It is notable that the 250D offers wifi support, while the M9 does not. Wifi can be a very convenient means to transfer image data to an off-camera location.

The 250D is a recent model that features in the current product line-up of Canon. In contrast, the M9 has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the M9 was succeeded by the Leica M Typ 240. Further information on the features and operation of the 250D and M9 can be found, respectively, in the Canon 250D Manual (free pdf) or the online Leica M9 Manual.

Review summary

So how do things add up? Which of the two cameras – the Canon 250D or the Leica M9 – has the upper hand? Is one clearly better than the other? Below is a summary of the relative strengths of each of the two contestants.

Arguments in favor of the Canon EOS 250D:

• More detail: Offers more megapixels (24 vs 18.1MP) with a 15% 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 4K/25p movies.
• Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
• 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 (1040k vs 230k dots).
• More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
• Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
• More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
• Faster burst: Shoots at higher frequency (5 vs 2 flaps/sec) to capture the decisive moment.
• Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
• Less heavy: Is lighter (by 136g or 23 percent) and hence easier to carry around.
• Longer lasting: Can take more shots (1070 versus 550) on a single battery charge.
• Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
• Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
• Easier wireless transfer: Supports Bluetooth for image sharing without cables.
• Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
• More affordable: Was introduced into a lower priced category (93 percent cheaper at launch).
• More modern: Reflects 9 years and 7 months of technical progress since the M9 launch.

Advantages of the Leica M9:

• Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
• 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 0.54x).
• 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 2009).

If the number of relative strengths (bullet points above) is taken as a guide, the 250D is the clear winner of the match-up (19 : 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 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 technical specifications can provide a useful overview of the capabilities of different cameras, it says little about, for example, the shooting experience and imaging performance of the 250D and the M9 in practical situations. 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 where reviews by experts come in. 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 250D	4/5	o	4.5/5	79/100	4/5	4/5	Apr 2019	599	amazon.com
2.		Leica M9	..	..	..	..	4.5/5	..	Sep 2009	7,999	ebay.com
3.		Canon 850D	4/5	+	3/5	80/100	4/5	3.5/5	Feb 2020	749	ebay.com
4.		Canon M50 Mark II	4/5	..	4/5	..	4.5/5	3.5/5	Oct 2020	599	ebay.com
5.		Canon 2000D	3/5	o	3.5/5	..	3.5/5	3.5/5	Feb 2018	449	amazon.com
6.		Canon 4000D	2.5/5	o	3/5	..	3.5/5	3.5/5	Feb 2018	399	amazon.com
7.		Canon M50	..	+	4/5	79/100	..	3.5/5	Feb 2018	779	ebay.com
8.		Canon 77D	4.5/5	..	4/5	82/100	4.5/5	4/5	Feb 2017	899	ebay.com
9.		Canon 200D	4/5	+ +	4/5	78/100	4.5/5	4.5/5	Jun 2017	549	ebay.com
10.		Canon 800D	4.5/5	..	3.5/5	80/100	4.5/5	4/5	Feb 2017	749	ebay.com
11.		Canon 760D	5/5	+	..	77/100	4.5/5	4.5/5	Feb 2015	649	ebay.com
12.		Canon T2i	..	+ +	..	77/100	4/5	4.5/5	Feb 2010	699	ebay.com
13.		Fujifilm X-T100	4/5	+	4.5/5	79/100	4/5	4.5/5	May 2018	599	ebay.com
14.		Leica M10	4.5/5	..	..	..	4/5	4.5/5	Jan 2017	6,595	ebay.com
15.		Leica X Vario	3/5	..	..	..	4/5	4/5	Jun 2013	2,850	ebay.com
16.		Leica M Typ 240	4/5	..	..	..	4/5	..	Sep 2012	6,950	ebay.com
17.		Leica M8	..	..	..	+ +	..	..	Sep 2006	5,499	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. 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. Also, please note that some of the review sites have changed their methodology and reporting over time.

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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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