Canon 1D Mark IV vs Leica S2

The Canon EOS-1D Mark IV and the Leica S2 are two professional cameras that were revealed to the public, respectively, in October 2009 and September 2008. Both are DSLR (Digital Single Lens Reflex) cameras that are based on an APS-H (1D Mark IV) and a medium format (S2) sensor. The Canon has a resolution of 16 megapixels, whereas the Leica provides 37.5 MP.

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

Headline Specifications

Canon 1D Mark IV		Leica S2
Digital single lens reflex		Digital single lens reflex
Canon EF mount lenses		Leica S mount lenses
16 MP – APS-H sensor		37.5 MP – Medium Format sensor
1080/30p Video		no Video
ISO 100-12,800 (50 - 102,400)		ISO 80-1,250
Optical viewfinder		Optical viewfinder
3.0" LCD – 920k dots		3.0" LCD – 460k dots
Fixed screen (not touch-sensitive)		Fixed screen (not touch-sensitive)
10 shutter flaps per second		1.5 shutter flaps per second
Weathersealed body		Weathersealed body
156 x 157 x 80 mm, 1230 g		160 x 120 x 80 mm, 1410 g

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Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS-1D Mark IV and the Leica S2? 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 1D Mark IV and the Leica S2 are illustrated in the side-by-side display below. 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 S2 is notably smaller (22 percent) than the Canon 1D Mark IV. However, the S2 is markedly heavier (15 percent) than the 1D Mark IV. In this context, it is worth noting that both cameras are splash and dust-proof and can, hence, be used in inclement weather conditions or harsh environments.

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. Hence, you might want to study and compare the specifications of available lenses in order to get the full picture of the size and weight of the two camera systems.

Concerning battery life, the 1D Mark IV gets 1500 shots out of its Canon LP-E4 battery, while the S2 can take .. images on a single charge of its Leica BP-PRO1 power pack. As can be seen in the images above, the 1D Mark IV has a battery grip built in. This facilitates image-taking in portrait orientation and gives it additional battery power. In order to provide similar functionality for the S2, Leica provides the Multi-Function Handgrip S vertical grip as an optional accessory (see here on ebay).

The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. 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	Street Price
1.		Canon 1D Mark IV	156 mm	157 mm	80 mm	1230 g	1500	Y	Oct 2009	US$ 4 999	ebay.com
2.		Leica S2	160 mm	120 mm	80 mm	1410 g	..	Y	Sep 2008	US$ 22 999	ebay.com
3.		Canon 1D Mark II	156 mm	158 mm	80 mm	1535 g	1200	Y	Jan 2004	US$ 4 499	ebay.com
4.		Canon 1D Mark III	156 mm	157 mm	80 mm	1155 g	2200	Y	Feb 2007	US$ 4 499	ebay.com
5.		Canon 1Ds Mark II	156 mm	158 mm	80 mm	1215 g	1200	Y	Sep 2004	US$ 7 999	ebay.com
6.		Canon 1D X	158 mm	168 mm	83 mm	1551 g	1120	Y	Oct 2011	US$ 6 799	ebay.com
7.		Canon 1D X Mark II	158 mm	168 mm	83 mm	1530 g	1210	Y	Feb 2016	US$ 5 999	ebay.com
8.		Canon 5D Mark II	152 mm	114 mm	75 mm	850 g	850	Y	Sep 2008	US$ 3 499	ebay.com
9.		Canon 7D	148 mm	111 mm	74 mm	860 g	800	Y	Sep 2009	US$ 1 699	ebay.com
10.		Canon 60D	145 mm	106 mm	79 mm	755 g	1100	Y	Aug 2010	US$ 1 399	ebay.com
11.		Leica S1	339 mm	214 mm	119 mm	2500 g	..	n	Aug 1996	US$ 21 499	ebay.com
12.		Leica S3	160 mm	120 mm	80 mm	1260 g	..	Y	Sep 2018	US$ 18 999	ebay.com
13.		Leica S Typ 006	160 mm	120 mm	80 mm	1260 g	..	Y	Sep 2012	US$ 21 949	ebay.com
14.		Leica S-E Typ 006	160 mm	120 mm	80 mm	1260 g	..	Y	Sep 2014	US$ 16 599	ebay.com
15.		Leica S Typ 007	160 mm	120 mm	80 mm	1260 g	..	Y	Sep 2014	US$ 24 499	ebay.com
16.		Nikon D3S	160 mm	157 mm	88 mm	1240 g	4200	Y	Oct 2009	US$ 5 199	ebay.com
17.		Nikon D4	160 mm	157 mm	91 mm	1340 g	2600	Y	Jan 2012	US$ 5 999	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 1D Mark IV was launched at a markedly lower price (by 78 percent) than the S2, 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.

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. 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. 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 1D Mark IV features an APS-H sensor and the Leica S2 a medium format sensor. The sensor area in the S2 is 160 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.3 and 0.8. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

With 37.5MP, the S2 offers a higher resolution than the 1D Mark IV (16MP), but the S2 nevertheless has larger individual pixels (pixel pitch of 6.00μm versus 5.70μm for the 1D Mark IV) due to its larger sensor. However, the 1D Mark IV is a somewhat more recent model (by 1 year) than the S2, 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 S2 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Leica S2 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the S2 for good quality output (200 dots per inch) amounts to 37.5 x 25 inches or 95.3 x 63.5 cm, for very good quality (250 dpi) 30 x 20 inches or 76.2 x 50.8 cm, and for excellent quality (300 dpi) 25 x 16.7 inches or 63.5 x 42.3 cm. The corresponding values for the Canon 1D Mark IV are 24.5 x 16.3 inches or 62.2 x 41.5 cm for good quality, 19.6 x 13.1 inches or 49.7 x 33.2 cm for very good quality, and 16.3 x 10.9 inches or 41.5 x 27.6 cm for excellent quality prints.

The Canon EOS-1D Mark IV has a native sensitivity range from ISO 100 to ISO 12800, which can be extended to ISO 50-102400. The corresponding ISO settings for the Leica S2 are ISO 80 to ISO 1250 (no boost).

In terms of underlying technology, the 1D Mark IV is build around a CMOS sensor, while the S2 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.

For many cameras, data on sensor performance has been reported by DXO Mark. This service determines an overall sensor rating, as well as sub-scores for low-light sensitivity ("DXO Sports"), dynamic range ("DXO Landscape"), and color depth ("DXO Portrait"). 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 1D Mark IV	APS-H	16.0	4896	3264	1080/30p	22.8	12.0	1320	74
2.		Leica S2	Medium Format	37.5	7500	5000	none	23.9	12.5	2224	82
3.		Canon 1D Mark II	APS-H	8.2	3504	2336	none	22.3	11.1	1003	66
4.		Canon 1D Mark III	APS-H	10.1	3888	2592	none	22.7	11.7	1078	71
5.		Canon 1Ds Mark II	Full Frame	16.6	4992	3328	none	23.3	11.3	1480	74
6.		Canon 1D X	Full Frame	17.9	5184	3456	1080/30p	23.8	11.8	2786	82
7.		Canon 1D X Mark II	Full Frame	20.0	5472	3648	4K/60p	24.1	13.5	3207	88
8.		Canon 5D Mark II	Full Frame	21.0	5616	3744	1080/30p	23.7	11.9	1815	79
9.		Canon 7D	APS-C	17.9	5184	3456	1080/30p	22.0	11.7	854	66
10.		Canon 60D	APS-C	17.9	5184	3456	1080/30p	22.2	11.5	813	66
11.		Leica S1	Medium Format	26.4	5140	5140	none	..	..	..	..
12.		Leica S3	Medium Format	64.0	9800	6533	4K/24p	25.6	14.4	3143	98
13.		Leica S Typ 006	Medium Format	37.5	7500	5000	none	23.9	12.2	824	76
14.		Leica S-E Typ 006	Medium Format	37.5	7500	5000	none	25.1	13.7	2763	93
15.		Leica S Typ 007	Medium Format	37.5	7500	5000	4K/24p	25.1	13.7	2763	93
16.		Nikon D3S	Full Frame	12.1	4256	2832	720/24p	23.5	12.0	3253	82
17.		Nikon D4	Full Frame	16.2	4928	3280	1080/30p	24.7	13.1	2965	89
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 1D Mark IV indeed provides movie recording capabilities, while the S2 does not. The highest resolution format that the 1D Mark IV can use is 1080/30p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. The 1D Mark IV and the S2 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 1D Mark IV offers a wider field of view (100%) than the one in the S2 (96%), so that a larger proportion of the captured image is visible in the finder. On the other hand, the viewfinder of the S2 has a higher magnification (0.86x vs 0.58x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The following table reports on some other key feature differences and similarities of the Canon 1D Mark IV, the Leica S2, and comparable 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 1D Mark IV	optical	Y	3.0 / 920	fixed	n	1/8000s	10.0/s	n	n
2.		Leica S2	optical	Y	3.0 / 460	fixed	n	1/4000s	1.5/s	n	n
3.		Canon 1D Mark II	optical	Y	2.0 / 230	fixed	n	1/8000s	8.3/s	n	n
4.		Canon 1D Mark III	optical	Y	3.0 / 230	fixed	n	1/8000s	10.0/s	n	n
5.		Canon 1Ds Mark II	optical	Y	2.0 / 230	fixed	n	1/8000s	4.0/s	n	n
6.		Canon 1D X	optical	Y	3.2 / 1040	fixed	n	1/8000s	14.0/s	n	n
7.		Canon 1D X Mark II	optical	Y	3.2 / 1620	fixed	Y	1/8000s	16.0/s	n	n
8.		Canon 5D Mark II	optical	Y	3.0 / 920	fixed	n	1/8000s	3.9/s	n	n
9.		Canon 7D	optical	Y	3.0 / 920	fixed	n	1/8000s	8.0/s	Y	n
10.		Canon 60D	optical	Y	3.0 / 1040	swivel	n	1/8000s	5.3/s	Y	n
11.		Leica S1	optical	n	none / none	none	n	..	0.01/s	n	n
12.		Leica S3	optical	Y	3.0 / 922	fixed	n	1/4000s	3.0/s	n	n
13.		Leica S Typ 006	optical	Y	3.0 / 922	fixed	n	1/4000s	1.5/s	n	n
14.		Leica S-E Typ 006	optical	Y	3.0 / 922	fixed	n	1/4000s	1.5/s	n	n
15.		Leica S Typ 007	optical	Y	3.0 / 922	fixed	n	1/4000s	3.5/s	n	n
16.		Nikon D3S	optical	Y	3.0 / 921	fixed	n	1/8000s	11.0/s	n	n
17.		Nikon D4	optical	Y	3.2 / 921	fixed	n	1/8000s	11.0/s	n	n
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

Concerning the storage of imaging data, both the 1D Mark IV and the S2 write their files to Compact Flash or SDHC cards. Both cameras feature dual card slots, which can be very useful in case a memory card fails.

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-1D Mark IV and Leica S2 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 1D Mark IV	Y	stereo / -	Y	-	mini	2.0	-	-	-
2.		Leica S2	Y	- / -	-	-	mini	2.0	-	-	-
3.		Canon 1D Mark II	Y	- / -	-	-	-	1.1	-	-	-
4.		Canon 1D Mark III	Y	- / -	-	-	-	2.0	-	-	-
5.		Canon 1Ds Mark II	Y	- / -	-	-	-	2.0	-	-	-
6.		Canon 1D X	Y	mono / -	Y	-	mini	2.0	-	-	-
7.		Canon 1D X Mark II	Y	mono / mono	Y	Y	mini	3.0	-	-	-
8.		Canon 5D Mark II	Y	mono / mono	Y	-	mini	2.0	-	-	-
9.		Canon 7D	Y	mono / -	Y	-	mini	2.0	-	-	-
10.		Canon 60D	Y	mono / mono	Y	-	mini	2.0	-	-	-
11.		Leica S1	-	- / -	-	-	-	-	-	-	-
12.		Leica S3	Y	stereo / mono	Y	Y	mini	3.0	Y	-	-
13.		Leica S Typ 006	Y	- / -	-	-	mini	2.0	-	-	-
14.		Leica S-E Typ 006	Y	- / -	-	-	mini	2.0	-	-	-
15.		Leica S Typ 007	Y	stereo / mono	Y	Y	mini	3.0	Y	-	-
16.		Nikon D3S	Y	stereo / -	-	-	mini	2.0	-	-	-
17.		Nikon D4	Y	mono / mono	Y	Y	micro	2.0	-	-	-

Both cameras feature a PC Sync terminal to control professional strobe lights, which will be appreciated by studio photographers.

Both the 1D Mark IV and the S2 have been discontinued, but can regularly be found used on ebay. The S2 was replaced by the Leica S Typ 006, while the 1D Mark IV does not have a direct successor. Further information on the features and operation of the 1D Mark IV and S2 can be found, respectively, in the Canon 1D Mark IV Manual (free pdf) or the online Leica S2 Manual.

Review summary

So what conclusions can be drawn? Which of the two cameras – the Canon 1D Mark IV or the Leica S2 – 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-1D Mark IV:

• 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 1080/30p movies.
• More complete view: Has a viewfinder with a larger field of view (100% vs 96%).
• More detailed LCD: Has a higher resolution rear screen (920k vs 460k dots).
• Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
• Faster burst: Shoots at higher frequency (10 vs 1.5 flaps/sec) to capture the decisive moment.
• Less heavy: Is lighter (by 180g or 13 percent) and hence easier to carry around.
• More portrait friendly: Features an integrated vertical grip for easier portrait shooting.
• More affordable: Was introduced into a lower priced category (78 percent cheaper at launch).
• More modern: Is somewhat more recent (announced 1 year after the S2).

Reasons to prefer the Leica S2:

• More detail: Has more megapixels (37.5 vs 16MP), which boosts linear resolution by 53%.
• Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
• Better image quality: Features bigger pixels on a larger sensor for higher quality imaging.
• Richer colors: The pixel size advantage translates into images with better, more accurate colors.
• More dynamic range: Larger pixels capture a wider spectrum of light and dark details.
• Better low-light sensitivity: Larger pixels means good image quality even under poor lighting.
• Larger viewfinder image: Features a viewfinder with a higher magnification (0.86x vs 0.58x).
• More compact: Is smaller (160x120mm vs 156x157mm) and will fit more readily into a bag.
• 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 2008).

If the count of relative strengths (bullet points above) is taken as a measure, the match-up finishes in a tie (10 points each). However, the relative importance of the various individual camera aspects will vary according to personal preferences and needs, so that you might like to apply corresponding weights to the particular features before making a decision on a new camera. 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.

How about other alternatives? Do the specifications of the Canon 1D Mark IV and the Leica S2 place the cameras among the top in their class? Find out in the latest Best DSLR Camera listing whether the two cameras rank among the cream of the crop.

In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it remains incomplete and does no justice, for example, to the way the 1D Mark IV or the S2 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 where reviews by experts come in. 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	Street Price
1.		Canon 1D Mark IV	5/5	..	..	89/100	..	..	Oct 2009	US$ 4 999	ebay.com
2.		Leica S2	..	..	..	..	..	..	Sep 2008	US$ 22 999	ebay.com
3.		Canon 1D Mark II	..	..	..	+ +	..	..	Jan 2004	US$ 4 499	ebay.com
4.		Canon 1D Mark III	..	..	..	..	..	..	Feb 2007	US$ 4 499	ebay.com
5.		Canon 1Ds Mark II	..	..	..	+ +	..	..	Sep 2004	US$ 7 999	ebay.com
6.		Canon 1D X	5/5	..	..	..	4.5/5	4.5/5	Oct 2011	US$ 6 799	ebay.com
7.		Canon 1D X Mark II	..	..	4.5/5	89/100	4.5/5	4.5/5	Feb 2016	US$ 5 999	ebay.com
8.		Canon 5D Mark II	4/5	91/100	..	79/100	4/5	..	Sep 2008	US$ 3 499	ebay.com
9.		Canon 7D	5/5	+ +	..	84/100	4.5/5	4.5/5	Sep 2009	US$ 1 699	ebay.com
10.		Canon 60D	5/5	+	..	79/100	4/5	4.5/5	Aug 2010	US$ 1 399	ebay.com
11.		Leica S1	..	..	..	..	..	..	Aug 1996	US$ 21 499	ebay.com
12.		Leica S3	..	..	..	..	..	..	Sep 2018	US$ 18 999	ebay.com
13.		Leica S Typ 006	..	..	..	..	..	..	Sep 2012	US$ 21 949	ebay.com
14.		Leica S-E Typ 006	..	..	..	..	..	..	Sep 2014	US$ 16 599	ebay.com
15.		Leica S Typ 007	4/5	..	..	..	..	..	Sep 2014	US$ 24 499	ebay.com
16.		Nikon D3S	5/5	..	..	89/100	4.5/5	5/5	Oct 2009	US$ 5 199	ebay.com
17.		Nikon D4	..	..	..	..	4.5/5	4.5/5	Jan 2012	US$ 5 999	ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The above review scores should be interpreted with care, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. 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. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

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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 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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