Canon 1D X Mark III vs 7D Mark II

The Canon EOS-1D X Mark III and the Canon EOS 7D Mark II are two digital cameras that were announced, respectively, in January 2020 and September 2014. Both are DSLR (Digital Single Lens Reflex) cameras that are based on a full frame (1DX Mark III) and an APS-C (7D Mark II) sensor. Both cameras offer a resolution of 20 megapixels.

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

Headline Specifications

Canon 1D X Mark III		Canon 7D II
Digital single lens reflex		Digital single lens reflex
Canon EF mount lenses		Canon EF mount lenses
20 MP – Full Frame sensor		20 MP – APS-C sensor
4K/60p Video		1080/60p Video
ISO 100-102,400 (50 - 819,200)		ISO 100-16,000 (100 - 51,200)
Optical viewfinder		Optical viewfinder
3.2" LCD – 2100k dots		3.0" LCD – 1040k dots
Fixed touchscreen		Fixed screen (not touch-sensitive)
20 shutter flaps per second		10 shutter flaps per second
Weathersealed body		Weathersealed body
2850 shots per battery charge		670 shots per battery charge
158 x 168 x 83 mm, 1440 g		149 x 112 x 78 mm, 910 g

Check 1DX Mark III price at
amazon.com
Check 7D Mark II offers at
ebay.com

Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS-1D X Mark III and the Canon EOS 7D Mark II? 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 X Mark III and the Canon 7D II 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.

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Canon 7D II is considerably smaller (37 percent) than the Canon 1D X Mark III. Moreover, the 7D Mark II is substantially lighter (37 percent) than the 1DX Mark III. 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. A larger imaging sensor (as in the 1DX Mark III) will tend to go along with bigger and heavier lenses, while more compact options are available for the smaller-sensor camera (7D Mark II). You can compare the optics available in the Canon EF Lens Catalog.

Concerning battery life, the 1DX Mark III gets 2850 shots out of its Canon LP-E19 battery, while the 7D Mark II can take 670 images on a single charge of its Canon LP-E6N power pack. As can be seen in the images above, the 1DX Mark III 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 7D Mark II, Canon provides the BG-E16 vertical grip as an optional accessory (see here on ebay).

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.		Canon 1D X Mark III	158 mm	168 mm	83 mm	1440 g	2850	Y	Jan 2020	6,499	amazon.com
2.		Canon 7D II	149 mm	112 mm	78 mm	910 g	670	Y	Sep 2014	1,799	ebay.com
3.		Canon R3	150 mm	143 mm	87 mm	1015 g	760	Y	Sep 2021	5,999	amazon.com
4.		Canon 1D X Mark II	158 mm	168 mm	83 mm	1530 g	1210	Y	Feb 2016	5,999	ebay.com
5.		Canon T6i	132 mm	101 mm	78 mm	555 g	440	n	Feb 2015	749	ebay.com
6.		Canon 70D	139 mm	104 mm	79 mm	755 g	920	Y	Jul 2013	1,199	ebay.com
7.		Canon SL1	117 mm	91 mm	69 mm	407 g	380	n	Mar 2013	549	ebay.com
8.		Canon T5i	133 mm	100 mm	79 mm	580 g	440	n	Mar 2013	649	ebay.com
9.		Canon 1D C	158 mm	164 mm	83 mm	1545 g	1120	Y	Apr 2012	14,999	ebay.com
10.		Canon 5D Mark III	152 mm	116 mm	76 mm	950 g	950	Y	Mar 2012	3,499	ebay.com
11.		Canon 6D	145 mm	111 mm	71 mm	770 g	1090	Y	Sep 2012	2,099	ebay.com
12.		Canon 1D X	158 mm	168 mm	83 mm	1551 g	1120	Y	Oct 2011	6,799	ebay.com
13.		Canon 7D	148 mm	111 mm	74 mm	860 g	800	Y	Sep 2009	1,699	ebay.com
14.		Canon 5D Mark II	152 mm	114 mm	75 mm	850 g	850	Y	Sep 2008	3,499	ebay.com
15.		Canon 1Ds Mark III	150 mm	160 mm	80 mm	1385 g	1800	Y	Aug 2007	7,999	ebay.com
16.		Canon 1Ds Mark II	156 mm	158 mm	80 mm	1215 g	1200	Y	Sep 2004	7,999	ebay.com
17.		Nikon D6	160 mm	163 mm	92 mm	1270 g	3580	Y	Feb 2020	6,499	amazon.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 7D Mark II was launched at a markedly lower price (by 72 percent) than the 1DX Mark III, 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 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 more expensive and lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Canon 1D X Mark III features a full frame sensor and the Canon 7D II an APS-C sensor. The sensor area in the 7D Mark II is 61 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.0 and 1.6. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Even though the 1DX Mark III has a larger sensor, both cameras offer the same resolution of 20 megapixels. This implies that the 1DX Mark III has a lower pixel density and larger individual pixels (with a pixel pitch of 6.57μm versus 4.10μm for the 7D Mark II), which gives it a potential advantage in terms of light gathering capacity. In addition, the 1DX Mark III is much more recent (by 5 years and 3 months) than the 7D Mark II, and its sensor will have benefitted from technological advances during this time.

The Canon EOS-1D X Mark III has a native sensitivity range from ISO 100 to ISO 102400, which can be extended to ISO 50-819200. The corresponding ISO settings for the Canon EOS 7D Mark II are ISO 100 to ISO 16000, with the possibility to increase the ISO range to 100-51200.

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 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 review, the 1DX Mark III provides substantially higher image quality than the 7D Mark II, with an overall score that is 21 points higher. This advantage is based on 1.8 bits higher color depth, 2.7 EV in additional dynamic range, and 1.6 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.		Canon 1D X Mark III	Full Frame	20.0	5472	3648	4K/60p	24.2	14.5	3248	91
2.		Canon 7D II	APS-C	20.0	5472	3648	1080/60p	22.4	11.8	1082	70
3.		Canon R3	Full Frame	24.0	6000	4000	6K/60p	25.0	14.7	4086	96
4.		Canon 1D X Mark II	Full Frame	20.0	5472	3648	4K/60p	24.1	13.5	3207	88
5.		Canon T6i	APS-C	24.0	6000	4000	1080/30p	22.7	12.0	919	71
6.		Canon 70D	APS-C	20.0	5472	3648	1080/30p	22.5	11.6	926	68
7.		Canon SL1	APS-C	17.9	5184	3456	1080/30p	21.8	11.3	843	63
8.		Canon T5i	APS-C	17.9	5184	3456	1080/30p	21.7	11.2	681	61
9.		Canon 1D C	Full Frame	17.9	5184	3456	4K/24p	24.3	13.0	2155	85
10.		Canon 5D Mark III	Full Frame	22.1	5760	3840	1080/30p	24.0	11.7	2293	81
11.		Canon 6D	Full Frame	20.0	5472	3648	1080/30p	23.8	12.1	2340	82
12.		Canon 1D X	Full Frame	17.9	5184	3456	1080/30p	23.8	11.8	2786	82
13.		Canon 7D	APS-C	17.9	5184	3456	1080/30p	22.0	11.7	854	66
14.		Canon 5D Mark II	Full Frame	21.0	5616	3744	1080/30p	23.7	11.9	1815	79
15.		Canon 1Ds Mark III	Full Frame	21.0	5616	3744	none	24.0	12.0	1663	80
16.		Canon 1Ds Mark II	Full Frame	16.6	4992	3328	none	23.3	11.3	1480	74
17.		Nikon D6	Full Frame	20.7	5568	3712	4K/30p	25.3	14.3	2886	95
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 two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the 1DX Mark III provides a higher video resolution than the 7D Mark II. It can shoot video footage at 4K/60p, while the 7D Mark II is limited to 1080/60p.

Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. The 1DX Mark III and the 7D Mark II 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 viewfinders of both cameras offer the same field of view (100%), but the viewfinder of the 1DX Mark III has a higher magnification than the one of the 7D Mark II (0.76x vs 0.63x), 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 X Mark III, the Canon 7D II, 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 X Mark III	optical	Y	3.2 / 2100	fixed	Y	1/8000s	20.0/s	n	n
2.		Canon 7D II	optical	Y	3.0 / 1040	fixed	n	1/8000s	10.0/s	Y	n
3.		Canon R3	5760	Y	3.2 / 4150	swivel	Y	1/8000s	12.0/s	n	Y
4.		Canon 1D X Mark II	optical	Y	3.2 / 1620	fixed	Y	1/8000s	16.0/s	n	n
5.		Canon T6i	optical	n	3.0 / 1040	swivel	Y	1/4000s	5.0/s	Y	n
6.		Canon 70D	optical	Y	3.0 / 1040	swivel	Y	1/8000s	7.0/s	Y	n
7.		Canon SL1	optical	n	3.0 / 1040	fixed	Y	1/4000s	4.9/s	Y	n
8.		Canon T5i	optical	n	3.0 / 1040	swivel	Y	1/4000s	5.0/s	Y	n
9.		Canon 1D C	optical	Y	3.2 / 1040	fixed	n	1/8000s	14.0/s	n	n
10.		Canon 5D Mark III	optical	Y	3.2 / 1040	fixed	n	1/8000s	6.0/s	n	n
11.		Canon 6D	optical	Y	3.0 / 1040	fixed	n	1/4000s	4.5/s	n	n
12.		Canon 1D X	optical	Y	3.2 / 1040	fixed	n	1/8000s	14.0/s	n	n
13.		Canon 7D	optical	Y	3.0 / 920	fixed	n	1/8000s	8.0/s	Y	n
14.		Canon 5D Mark II	optical	Y	3.0 / 920	fixed	n	1/8000s	3.9/s	n	n
15.		Canon 1Ds Mark III	optical	Y	3.0 / 230	fixed	n	1/8000s	5.0/s	n	n
16.		Canon 1Ds Mark II	optical	Y	2.0 / 230	fixed	n	1/8000s	4.0/s	n	n
17.		Nikon D6	optical	Y	3.2 / 2359	fixed	Y	1/8000s	14.0/s	n	n
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The 1DX Mark III has a touchscreen, while the 7D Mark II has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

The Canon 1D X Mark III and the Canon 7D II both have 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.

The 1DX Mark III writes its imaging data to CFexpress (type B) cards, while the 7D Mark II uses Compact Flash or SDXC 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 X Mark III and Canon EOS 7D Mark II 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 X Mark III	Y	mono / mono	Y	Y	mini	3.1	Y	-	Y
2.		Canon 7D II	Y	stereo / mono	Y	Y	mini	3.0	-	-	-
3.		Canon R3	Y	stereo / mono	Y	Y	micro	3.2	Y	-	Y
4.		Canon 1D X Mark II	Y	mono / mono	Y	Y	mini	3.0	-	-	-
5.		Canon T6i	Y	stereo / mono	Y	-	mini	2.0	Y	Y	-
6.		Canon 70D	Y	stereo / mono	Y	-	mini	2.0	Y	-	-
7.		Canon SL1	Y	mono / mono	Y	-	mini	2.0	-	-	-
8.		Canon T5i	Y	stereo / mono	Y	-	mini	2.0	-	-	-
9.		Canon 1D C	Y	mono / mono	Y	Y	mini	2.0	-	-	-
10.		Canon 5D Mark III	Y	mono / mono	Y	Y	mini	2.0	-	-	-
11.		Canon 6D	Y	mono / mono	Y	-	mini	2.0	Y	-	-
12.		Canon 1D X	Y	mono / -	Y	-	mini	2.0	-	-	-
13.		Canon 7D	Y	mono / -	Y	-	mini	2.0	-	-	-
14.		Canon 5D Mark II	Y	mono / mono	Y	-	mini	2.0	-	-	-
15.		Canon 1Ds Mark III	Y	mono / -	-	-	-	2.0	-	-	-
16.		Canon 1Ds Mark II	Y	- / -	-	-	-	2.0	-	-	-
17.		Nikon D6	Y	stereo / mono	Y	Y	mini	3.1	Y	-	Y

It is notable that the 1DX Mark III offers wifi support, while the 7D Mark II does not. Wifi can be a very convenient means to transfer image data to an off-camera location.

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

Travel and landscape photographers will find it useful that both cameras feature internal geolocalization sensors and can record GPS coordinates in their EXIF data.

The 1DX Mark III is a recent model that features in the current product line-up of Canon. In contrast, the 7D Mark II has been discontinued (but can be found pre-owned on ebay). There has not been a direct replacement model for the 7D Mark II from Canon. Further information on the features and operation of the 1DX Mark III and 7D Mark II can be found, respectively, in the Canon 1D X Mark III Manual (free pdf) or the online Canon 7D II Manual.

Review summary

So what is the bottom line? Is there a clear favorite between the Canon 1D X Mark III and the Canon 7D II? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.

Reasons to prefer the Canon EOS-1D X Mark III:

• Better image quality: Scores substantially higher (21 points) in the DXO overall assessment.
• Richer colors: Generates images with noticeably better colors (1.8 bits more color depth).
• More dynamic range: Captures a larger spectrum of light and dark details (2.7 EV of extra DR).
• Better low-light sensitivity: Requires less light for good images (1.6 stops ISO advantage).
• Better video: Provides higher definition movie capture (4K/60p vs 1080/60p).
• Larger viewfinder image: Features a viewfinder with a higher magnification (0.76x vs 0.63x).
• Larger screen: Has a bigger rear LCD (3.2" vs 3.0") for image review and settings control.
• More detailed LCD: Has a higher resolution rear screen (2100k vs 1040k dots).
• Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
• Faster burst: Shoots at higher frequency (20 vs 10 flaps/sec) to capture the decisive moment.
• More portrait friendly: Features an integrated vertical grip for easier portrait shooting.
• Longer lasting: Can take more shots (2850 versus 670) on a single battery charge.
• 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.
• More modern: Reflects 5 years and 3 months of technical progress since the 7D Mark II launch.

Arguments in favor of the Canon EOS 7D Mark II:

• More compact: Is smaller (149x112mm vs 158x168mm) and will fit more readily into a bag.
• Less heavy: Has a lower weight (by 530g or 37 percent) and is thus easier to take along.
• Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
• More affordable: Was introduced into a lower priced category (72 percent cheaper at launch).
• More heavily discounted: Has been around for much longer (launched in September 2014).

If the count of relative strengths (bullet points above) is taken as a measure, the 1DX Mark III is the clear winner of the match-up (15 : 5 points). 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 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.

How about other alternatives? Do the specifications of the Canon 1D X Mark III and the Canon 7D II 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 technical specifications can provide a useful overview of the capabilities of different cameras, it remains incomplete and does no justice, for example, to the way the 1DX Mark III or the 7D Mark II perform in practice. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.

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 1D X Mark III	..	+ +	5/5	..	4.5/5	4/5	Jan 2020	6,499	amazon.com
2.		Canon 7D II	4.5/5	+	3.5/5	84/100	4/5	4.5/5	Sep 2014	1,799	ebay.com
3.		Canon R3	5/5	o	4.5/5	..	5/5	4.5/5	Sep 2021	5,999	amazon.com
4.		Canon 1D X Mark II	..	..	4.5/5	89/100	4.5/5	4.5/5	Feb 2016	5,999	ebay.com
5.		Canon T6i	5/5	..	..	75/100	4.5/5	4.5/5	Feb 2015	749	ebay.com
6.		Canon 70D	5/5	+ +	..	83/100	4.5/5	5/5	Jul 2013	1,199	ebay.com
7.		Canon SL1	4/5	+	..	78/100	4/5	4/5	Mar 2013	549	ebay.com
8.		Canon T5i	..	..	..	76/100	4.5/5	4.5/5	Mar 2013	649	ebay.com
9.		Canon 1D C	..	..	..	..	..	..	Apr 2012	14,999	ebay.com
10.		Canon 5D Mark III	..	+ +	..	82/100	4.5/5	4.5/5	Mar 2012	3,499	ebay.com
11.		Canon 6D	5/5	+ +	..	83/100	4.5/5	4.5/5	Sep 2012	2,099	ebay.com
12.		Canon 1D X	5/5	..	..	..	4.5/5	4.5/5	Oct 2011	6,799	ebay.com
13.		Canon 7D	5/5	+ +	..	84/100	4.5/5	4.5/5	Sep 2009	1,699	ebay.com
14.		Canon 5D Mark II	4/5	91/100	..	79/100	4/5	..	Sep 2008	3,499	ebay.com
15.		Canon 1Ds Mark III	..	..	..	+ +	4.5/5	..	Aug 2007	7,999	ebay.com
16.		Canon 1Ds Mark II	..	..	..	+ +	..	..	Sep 2004	7,999	ebay.com
17.		Nikon D6	..	..	4/5	..	4.5/5	4.5/5	Feb 2020	6,499	amazon.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The review scores listed above should be treated with care, though. The assessments were made in relation to similar cameras of the same technological generation. Hence, a score should always be seen in the context of the camera's market launch date and its price, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date 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? In case you are interested in seeing how other cameras pair up, just make your choice using the following search menu. 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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