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Canon 1D X Mark III vs 850D

The Canon EOS-1D X Mark III and the Canon EOS 850D (labelled Canon T8i in some countries) are two digital cameras that were announced, respectively, in January 2020 and February 2020. Both are DSLR (Digital Single Lens Reflex) cameras that are based on a full frame (1DX Mark III) and an APS-C (850D) sensor. The 1DX Mark III has a resolution of 20 megapixels, whereas the 850D provides 24 MP.

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 VS Canon 850D
Canon 1D X Mark III Canon 850D
Digital single lens reflex Digital single lens reflex
Canon EF mount lenses Canon EF mount lenses
20 MP, Full Frame Sensor 24 MP, APS-C Sensor
4K/60p Video 4K/24p Video
ISO 100-102400 (50-819200) ISO 100-25600 (100-51200)
Optical viewfinder Optical viewfinder
3.2" LCD, 2100k dots 3.0" LCD, 1040k dots
Fixed touchscreen Swivel touchscreen
20 shutter flaps per second 7.5 shutter flaps per second
Weathersealed bodyNot weather sealed
2850 shots per battery charge800 shots per battery charge
158 x 168 x 83 mm, 1440 g 131 x 103 x 76 mm, 515 g

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 850D? 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 850D 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 size dimensions are rounded to the nearest millimeter.

Size Canon 1D X Mark III vs Canon 850D
Compare 1DX Mark III versus 850D top
Comparison 1DX Mark III or 850D rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Canon 850D is considerably smaller (49 percent) than the Canon 1D X Mark III. Moreover, the 850D is substantially lighter (64 percent) than the 1DX Mark III. It is worth mentioning in this context that the 1DX Mark III is splash and dust resistant, while the 850D 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 (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 (850D). 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 LP-E19 battery, while the 850D can take 800 images on a single charge of its LP-E17 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.

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, just use the right or left arrows in the table to switch to the respective camera. Alternatively, you can also navigate to the CAM-parator app and make your selection from the full list of cameras there.

Camera Body Specifications
  Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
(CIPA)
Weather
Sealing
(yes/no)
Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Camera
Model
 
Canon 1D X Mark III» 6.2 in 6.6 in 3.3 in 50.8 oz 2850 Y Jan 2020 6,499 iCanon 1D X Mark III
 
Canon 850D« 5.2 in 4.1 in 3.0 in 18.2 oz 800 n Feb 2020 749 iCanon 850D
 
Canon 250D« » 4.8 in 3.7 in 2.8 in 15.8 oz 1070 n Apr 2019 599 iCanon 250D
 
Canon 77D« » 5.2 in 3.9 in 3.0 in 19.0 oz 600 n Feb 2017 899 iCanon 77D
 
Canon 800D« » 5.2 in 3.9 in 3.0 in 18.8 oz 600 n Feb 2017 749iCanon 800D
 
Canon 1D X Mark II« » 6.2 in 6.6 in 3.3 in 54.0 oz 1210 Y Feb 2016 5,999iCanon 1D X Mark II
 
Canon 750D« » 5.2 in 4.0 in 3.1 in 19.6 oz 440 n Feb 2015 749iCanon 750D
 
Canon 760D« » 5.2 in 4.0 in 3.1 in 19.9 oz 440 n Feb 2015 649iCanon 760D
 
Canon 1D C« » 6.2 in 6.5 in 3.3 in 54.5 oz 1120 Y Apr 2012 14,999iCanon 1D C
 
Canon 5D Mark III« » 6.0 in 4.6 in 3.0 in 33.5 oz 950 Y Mar 2012 3,499iCanon 5D Mark III
 
Canon 6D« » 5.7 in 4.4 in 2.8 in 27.2 oz 1090 Y Sep 2012 2,099iCanon 6D
 
Canon 1D X« » 6.2 in 6.6 in 3.3 in 54.7 oz 1120 Y Oct 2011 6,799iCanon 1D X
 
Canon 5D Mark II« » 6.0 in 4.5 in 3.0 in 30.0 oz 850 Y Sep 2008 3,499iCanon 5D Mark II
 
Canon 1Ds Mark III« » 5.9 in 6.3 in 3.1 in 48.9 oz 1800 Y Aug 2007 7,999iCanon 1Ds Mark III
 
Canon 1Ds Mark II« » 6.1 in 6.2 in 3.1 in 42.9 oz 1200 Y Sep 2004 7,999iCanon 1Ds Mark II
 
Nikon D6« » 6.3 in 6.4 in 3.6 in 44.8 oz 3580 Y Feb 2020 6,499 iNikon D6
 
Nikon D5« » 6.3 in 6.3 in 3.6 in 49.9 oz 3780 Y Jan 2016 6,499iNikon D5
Note: Measurements and pricing do not include easily detachable parts, such as interchangeable lenses or optional viewfinders.

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 850D was launched at a markedly lower price (by 88 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.

 

Sensor comparison

The size of the sensor inside a digital camera is one of the key determinants 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 are more costly to manufacture and tend to 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 850D an APS-C sensor. The sensor area in the 850D is 62 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.

In terms of chip-set technology, the 1DX Mark III uses a more advanced image processing engine (DIGIC X) than the 850D (DIGIC 8), with benefits for noise reduction, color accuracy, and processing speed.

Canon 1D X Mark III and Canon 850D sensor measures

Despite having a smaller sensor, the 850D offers a higher resolution of 24 megapixels, compared with 20 MP of the 1DX Mark III. 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 6.57μm for the 1DX Mark III). It is noteworthy in this context that the two cameras were released in close succession, so that their sensors are from the same technological generation.

The resolution advantage of the Canon 850D implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the 850D for good quality output (200 dots per inch) amounts to 30 x 20 inch or 76.2 x 50.8 cm, for very good quality (250 dpi) 24 x 16 inch or 61 x 40.6 cm, and for excellent quality (300 dpi) 20 x 13.3 inch or 50.8 x 33.9 cm. The corresponding values for the Canon 1D X Mark III are 27.4 x 18.2 inch or 69.5 x 46.3 cm for good quality, 21.9 x 14.6 inch or 55.6 x 37.1 cm for very good quality, and 18.2 x 12.2 inch or 46.3 x 30.9 cm for excellent quality prints.

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 850D are ISO 100 to ISO 25600, with the possibility to increase the ISO range to 100-51200.

1DX Mark III versus 850D MP

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 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
Camera
Model
 
Canon 1D X Mark III Full Frame 20.0 5472 36484K/60p23.413.4244583Canon 1D X Mark III
 
Canon 850D APS-C 24.0 6000 40004K/24p........Canon 850D
 
Canon 250D APS-C 24.0 6000 40004K/25p........Canon 250D
 
Canon 77D APS-C 24.0 6000 40001080/60p23.613.397178Canon 77D
 
Canon 800D APS-C 24.0 6000 40001080/60p........Canon 800D
 
Canon 1D X Mark II Full Frame 20.0 5472 36484K/60p24.113.5320788Canon 1D X Mark II
 
Canon 750D APS-C 24.0 6000 40001080/30p22.712.091971Canon 750D
 
Canon 760D APS-C 24.0 6000 40001080/30p22.612.091570Canon 760D
 
Canon 1D C Full Frame 17.9 5184 34564K/24p........Canon 1D C
 
Canon 5D Mark III Full Frame 22.1 5760 38401080/30p24.011.7229381Canon 5D Mark III
 
Canon 6D Full Frame 20.0 5472 36481080/30p23.812.1234082Canon 6D
 
Canon 1D X Full Frame 17.9 5184 34561080/30p23.811.8278682Canon 1D X
 
Canon 5D Mark II Full Frame 21.0 5616 37441080/30p23.711.9181579Canon 5D Mark II
 
Canon 1Ds Mark III Full Frame 21.0 5616 3744none24.012.0166380Canon 1Ds Mark III
 
Canon 1Ds Mark II Full Frame 16.6 4992 3328none23.311.3148074Canon 1Ds Mark II
 
Nikon D6 Full Frame 20.7 5568 37124K/30p........Nikon D6
 
Nikon D5 Full Frame 20.7 5588 37124K/30p25.112.3234388Nikon D5

Many modern cameras cannot only take still pictures, but also record videos. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the 1DX Mark III provides a higher frame rate than the 850D. It can shoot video footage at 4K/60p, while the 850D is limited to 4K/24p.

 

Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. The 1DX Mark III and the 850D 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 1DX Mark III offers a wider field of view (100%) than the one in the 850D (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the 1DX Mark III has a higher magnification (0.76x vs 0.51x), 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 1D X Mark III and Canon 850D along with similar information for a selection of comparators.

Core Features
  Camera
Model
Viewfinder
(Type or
'000 dots)
Control
Panel
(yes/no)
LCD
Size
(inch)
LCD
Resolution
('000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Mech
Shutter
Speed
Shutter
Flaps
(1/sec)
Built-in
Flash
(yes/no)
Built-in
Image
Stab
Camera
Model
 
Canon 1D X Mark IIIoptical Y 3.2 2100 fixed Y 1/8000s 20.0 n n Canon 1D X Mark III
 
Canon 850Doptical n 3.0 1040 swivel Y 1/4000s 7.5 Y n Canon 850D
 
Canon 250Doptical n 3.0 1040 swivel Y 1/4000s 5.0 Y n Canon 250D
 
Canon 77Doptical Y 3.0 1040 swivel Y 1/4000s 6.0 Y n Canon 77D
 
Canon 800Doptical n 3.0 1040 swivel Y 1/4000s 6.0 Y n Canon 800D
 
Canon 1D X Mark IIoptical Y 3.2 1620 fixed Y 1/8000s 16.0 n n Canon 1D X Mark II
 
Canon 750Doptical n 3.0 1040 swivel Y 1/4000s 5.0 Y n Canon 750D
 
Canon 760Doptical Y 3.0 1040 swivel Y 1/4000s 5.0 Y n Canon 760D
 
Canon 1D Coptical Y 3.2 1040 fixed n 1/8000s 14.0 n n Canon 1D C
 
Canon 5D Mark IIIoptical Y 3.2 1040 fixed n 1/8000s 6.0 n n Canon 5D Mark III
 
Canon 6Doptical Y 3.0 1040 fixed n 1/4000s 4.5 n n Canon 6D
 
Canon 1D Xoptical Y 3.2 1040 fixed n 1/8000s 14.0 n n Canon 1D X
 
Canon 5D Mark IIoptical Y 3.0 920 fixed n 1/8000s 3.9 n n Canon 5D Mark II
 
Canon 1Ds Mark IIIoptical Y 3.0 230 fixed n 1/8000s 5.0 n n Canon 1Ds Mark III
 
Canon 1Ds Mark IIoptical Y 2.0 230 fixed n 1/8000s 4.0 n n Canon 1Ds Mark II
 
Nikon D6optical Y 3.2 2359 fixed Y 1/8000s 14.0 n n Nikon D6
 
Nikon D5optical Y 3.2 2359 fixed Y 1/8000s 14.0 n n Nikon D5

One feature that is present on the 1DX Mark III, but is missing on the 850D 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 850D has an articulated screen that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in taking selfies. In contrast, the 1DX Mark III does not have a selfie-screen.

The Canon 1D X Mark III and the Canon 850D 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 cards, while the 850D uses SDXC cards. The 1DX Mark III features dual card slots, which can be very useful in case a memory card fails. In contrast, the 850D only has one slot.

 

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 850D 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
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
Camera
Model
 
Canon 1D X Mark IIIYmonomonoYYmini3.1Y-YCanon 1D X Mark III
 
Canon 850DYstereomonoY-mini2.0Y-YCanon 850D
 
Canon 250DYstereomonoY-mini2.0Y-YCanon 250D
 
Canon 77DYstereomonoY-mini2.0YYYCanon 77D
 
Canon 800DYstereomonoY-mini2.0YYYCanon 800D
 
Canon 1D X Mark IIYmonomonoYYmini3.0---Canon 1D X Mark II
 
Canon 750DYstereomonoY-mini2.0YY-Canon 750D
 
Canon 760DYstereomonoY-mini2.0YY-Canon 760D
 
Canon 1D CYmonomonoYYmini2.0---Canon 1D C
 
Canon 5D Mark IIIYmonomonoYYmini2.0---Canon 5D Mark III
 
Canon 6DYmonomonoY-mini2.0Y--Canon 6D
 
Canon 1D XYmonononeY-mini2.0---Canon 1D X
 
Canon 5D Mark IIYmonomonoY-mini2.0---Canon 5D Mark II
 
Canon 1Ds Mark IIIYnonenone--none2.0---Canon 1Ds Mark III
 
Canon 1Ds Mark IIYnonenone--none2.0---Canon 1Ds Mark II
 
Nikon D6YstereomonoYYmini3.1Y-YNikon D6
 
Nikon D5YstereomonoYYmini3.0---Nikon D5

It is notable that the 1DX Mark III has a headphone jack, which is not present on the 850D This port makes it possible to attach external headphones and monitor the quality of sound during the recording process.

Studio photographers will appreciate that the Canon 1D X Mark III (unlike the 850D) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Travel and landscape photographers will find it useful that the 1DX Mark III has an internal geolocalization sensor and can record GPS coordinates in its EXIF data.

Both the 1DX Mark III and the 850D are recent models that are part of the current product line-up. The 1DX Mark III replaced the earlier Canon 1DX Mark II, while the 850D followed on from the Canon 800D. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Canon website.

Review summary

So what is the bottom line? Is the Canon 1D X Mark III better than the Canon 850D or vice versa? A synthesis of the relative strong points of each of the models is listed below.


Advantages of the Canon EOS-1D X Mark III:

  • 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.
  • Better jpgs: Has a more modern image processing engine (DIGIC X vs DIGIC 8).
  • Better video: Provides higher movie framerates (4K/60p versus 4K/24p).
  • Better sound control: Has a headphone port that enables audio monitoring while recording.
  • 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 (0.76x vs 0.51x).
  • Easier setting verification: Features an LCD display on top to control shooting parameters.
  • 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).
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • Faster burst: Shoots at higher frequency (20 vs 7.5 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 800) on a single battery charge.
  • Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
  • Easier geotagging: Features an internal GPS sensor to log localization data.
  • Faster data transfer: Supports a more advanced USB protocol (3.1 vs 2.0).
  • Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.


Arguments in favor of the Canon EOS 850D:

  • More detail: Has more megapixels (24 vs 20MP), which boosts linear resolution by 10%.
  • More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • More compact: Is smaller (131x103mm vs 158x168mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 925g or 64 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 (88 percent cheaper at launch).

If the count of individual advantages (bullet points above) is taken as a guide, the 1DX Mark III is the clear winner of the match-up (21 : 7 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 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.

1DX Mark III 21:07 850D

How about other alternatives? Do the specifications of the Canon 1D X Mark III and the Canon 850D 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 says little about, for example, the shooting experience and imaging performance of the 1DX Mark III and the 850D in practical situations. 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 adjacent summary-table relays the overall verdicts of several of the most popular camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, and photographyblog). 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.

Review Scores
  Camera
Model
cam
era
  labs  
dp
re
  view  
e
photo
  zine  
ima
ging
resource
photo
graphy
  blog  
Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Camera
Model
 
Canon 1D X Mark III+ +........ Jan 2020 6,499 iCanon 1D X Mark III
 
Canon 850D.......... Feb 2020 749 iCanon 850D
 
Canon 250Do79/1004/5..4/5 Apr 2019 599 iCanon 250D
 
Canon 77D..82/1004.5/54.5/54/5 Feb 2017 899 iCanon 77D
 
Canon 800D..80/1004.5/54/54/5 Feb 2017 749iCanon 800D
 
Canon 1D X Mark II..89/1004.5/55/54.5/5 Feb 2016 5,999iCanon 1D X Mark II
 
Canon 750D..75/1004.5/54.5/54.5/5 Feb 2015 749iCanon 750D
 
Canon 760D+77/1004.5/54.5/54.5/5 Feb 2015 649iCanon 760D
 
Canon 1D C.......... Apr 2012 14,999iCanon 1D C
 
Canon 5D Mark III+ +82/1004.5/55/54.5/5 Mar 2012 3,499iCanon 5D Mark III
 
Canon 6D+ +83/1004.5/54.5/54.5/5 Sep 2012 2,099iCanon 6D
 
Canon 1D X....4.5/54.5/54.5/5 Oct 2011 6,799iCanon 1D X
 
Canon 5D Mark II91/10079/1004/55/5.. Sep 2008 3,499iCanon 5D Mark II
 
Canon 1Ds Mark III..+ +4.5/5.... Aug 2007 7,999iCanon 1Ds Mark III
 
Canon 1Ds Mark II..+ +...... Sep 2004 7,999iCanon 1Ds Mark II
 
Nikon D6........4.5/5 Feb 2020 6,499 iNikon D6
 
Nikon D5..89/1004.5/55/55/5 Jan 2016 6,499iNikon D5
Notes: (+ +) 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 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.

Canon 1D X Mark III:
Check Amazon price
Canon 850D:
Check Amazon price

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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    Specifications: Canon 1D X Mark III vs Canon 850D

    Below is a side-by-side comparison of the specs of the two cameras to facilitate a quick review of their differences and common features.

    Camera Specifications
    Camera Model Canon 1D X Mark III Canon 850D
    Camera Type Digital single lens reflex Digital single lens reflex
    Camera Lens Canon EF mount lenses Canon EF mount lenses
    Launch Date January 2020 February 2020
    Launch Price USD 6499 USD 749
    Sensor Specs Canon 1D X Mark III Canon 850D
    Sensor Technology CMOS CMOS
    Sensor Format Full Frame Sensor APS-C Sensor
    Sensor Size 36.0 x 24.0 mm 22.3 x 14.9 mm
    Sensor Area 864 mm2 332.27 mm2
    Sensor Diagonal 43.3 mm 26.8 mm
    Crop Factor 1.0x 1.6x
    Sensor Resolution 20 Megapixels 24 Megapixels
    Image Resolution 5472 x 3648 pixels 6000 x 4000 pixels
    Pixel Pitch 6.57 μm 3.72 μm
    Pixel Density 2.31 MP/cm2 7.22 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability 4K/60p Video 4K/24p Video
    ISO Setting 100-102400 ISO 100-25600 ISO
    ISO Boost 50-819200 ISO 100-51200 ISO
    Image Processor DIGIC X DIGIC 8
    DXO Sensor Quality (score) 83 ..
    DXO Color Depth (bits) 23.4 ..
    DXO Dynamic Range (EV) 13.4 ..
    DXO Low Light (ISO) 2445 ..
    Screen Specs Canon 1D X Mark III Canon 850D
    Viewfinder Type Optical viewfinder Optical viewfinder
    Viewfinder Field of View 100% 95%
    Viewfinder Magnification 0.76x 0.51x
    Top-Level Screen Control Panel no Top Display
    LCD Framing Live View Live View
    Rear LCD Size 3.2 inch 3.0 inch
    LCD Resolution 2100k dots 1040k dots
    LCD Attachment Fixed screen Swivel screen
    Touch Input Touchscreen Touchscreen
    Shooting Specs Canon 1D X Mark III Canon 850D
    Focus System Phase-detect AF Phase-detect AF
    Manual Focusing AidNo Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/8000/s 1/4000/s
    Continuous Shooting 20 shutter flaps/s 7.5 shutter flaps/s
    Shutter Life Expectancy500 000 actuations100 000 actuations
    Time-Lapse PhotographyIntervalometer built-inIntervalometer built-in
    Fill Flash no On-Board Flash Build-in Flash
    Storage Medium CFexpress cards SDXC cards
    Second Storage Option Dual card slots Single card slot
    Connectivity Specs Canon 1D X Mark III Canon 850D
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket no PC Sync
    USB Connector USB 3.1 USB 2.0
    HDMI Port mini HDMI mini HDMI
    Microphone Port External MIC port External MIC port
    Headphone Socket Headphone port no Headphone port
    Wifi Support Wifi built-in Wifi built-in
    Bluetooth Support Bluetooth built-in Bluetooth built-in
    Geotagging GPS built-in no internal GPS
    Body Specs Canon 1D X Mark III Canon 850D
    Environmental SealingWeathersealed bodyNot weather sealed
    Battery Type LP-E19 LP-E17
    Battery Life (CIPA)2850 shots per charge800 shots per charge
    Body Dimensions 158 x 168 x 83 mm
    (6.2 x 6.6 x 3.3 in)
    131 x 103 x 76 mm
    (5.2 x 4.1 x 3.0 in)
    Camera Weight 1440 g (50.8 oz) 515 g (18.2 oz)

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