Canon 1D Mark III vs 6D
The Canon EOS-1D Mark III and the Canon EOS 6D are two digital cameras that were announced, respectively, in February 2007 and September 2012. Both are DSLR (Digital Single Lens Reflex) cameras that are based on an APS-H (1D Mark III) and a full frame (6D) sensor. The 1D Mark III has a resolution of 10.1 megapixels, whereas the 6D provides 20 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS-1D Mark III and the Canon EOS 6D? 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.
An illustration of the physical size and weight of the Canon 1D Mark III and the Canon 6D 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.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Canon 6D is considerably smaller (34 percent) than the Canon 1D Mark III. Moreover, the 6D is markedly lighter (33 percent) than the 1D 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 6D) will tend to go along with bigger and heavier lenses, while more compact options are available for the smaller-sensor camera (1D Mark III). You can compare the optics available in the Canon EF Lens Catalog.
Concerning battery life, the 1D Mark III gets 2200 shots out of its LP-E4 battery, while the 6D can take 1090 images on a single charge of its LP-E6 power pack. As can be seen in the images above, the 1D 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 6D, Canon provides the BG-E13 vertical grip as an optional accessory (see here on eBay).
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.
|Canon 1D Mark III||6.1 in||6.2 in||3.1 in||40.7 oz||2200||Y||Feb 2007||4,499|
|Canon 6D||5.7 in||4.4 in||2.8 in||27.2 oz||1090||Y||Sep 2012||2,099|
|Canon 6D Mark II||5.7 in||4.4 in||3.0 in||27.0 oz||1200||Y||Jun 2017||1,999|
|Canon 1D X Mark II||6.2 in||6.6 in||3.3 in||54.0 oz||1210||Y||Feb 2016||5,999|
|Canon 5DS||6.0 in||4.6 in||3.0 in||32.8 oz||700||Y||Feb 2015||3,699|
|Canon 5DS R||6.0 in||4.6 in||3.0 in||32.8 oz||700||Y||Feb 2015||3,699|
|Canon 7D II||5.9 in||4.4 in||3.1 in||32.1 oz||670||Y||Sep 2014||1,799|
|Canon 70D||5.5 in||4.1 in||3.1 in||26.6 oz||920||Y||Jul 2013||1,199|
|Canon 5D Mark III||6.0 in||4.6 in||3.0 in||33.5 oz||950||Y||Mar 2012||3,499|
|Canon 1D Mark IV||6.1 in||6.2 in||3.1 in||43.4 oz||1500||Y||Oct 2009||4,999|
|Canon 5D Mark II||6.0 in||4.5 in||3.0 in||30.0 oz||850||Y||Sep 2008||3,499|
|Canon 1Ds Mark III||5.9 in||6.3 in||3.1 in||48.9 oz||1800||Y||Aug 2007||7,999|
|Canon 1D Mark II N||6.1 in||6.2 in||3.1 in||55.2 oz||1200||Y||Aug 2005||3,999|
|Canon 1D Mark II||6.1 in||6.2 in||3.1 in||54.1 oz||1200||Y||Jan 2004||4,499|
|Canon 1Ds||6.1 in||6.2 in||3.1 in||44.6 oz||600||Y||Sep 2002||8,999|
|Nikon D3||6.3 in||6.2 in||3.5 in||45.9 oz||4300||Y||Aug 2007||4,999|
|Nikon D2Xs||6.2 in||5.9 in||3.4 in||44.2 oz||3800||Y||Jun 2006||4,699|
|Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.|
Any camera decision will obviously take relative prices into account. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The 6D was launched at a markedly lower price (by 53 percent) than the 1D 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.
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 1D Mark III features an APS-H sensor and the Canon 6D a full frame sensor. The sensor area in the 6D is 65 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.3 and 1.0. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
Technology-wise, the 6D uses a more advanced image processing engine (DIGIC 5+) than the 1D Mark III (DIGIC III), with benefits for noise reduction, color accuracy, and processing speed.
With 20MP, the 6D offers a higher resolution than the 1D Mark III (10.1MP), but the 6D has smaller individual pixels (pixel pitch of 6.57μm versus 7.21μm for the 1D Mark III). Yet, the 6D is a much more recent model (by 5 years and 6 months) than the 1D Mark III, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units.
The resolution advantage of the Canon 6D implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the 6D for good quality output (200 dots per inch) amounts to 27.4 x 18.2 inches or 69.5 x 46.3 cm, for very good quality (250 dpi) 21.9 x 14.6 inches or 55.6 x 37.1 cm, and for excellent quality (300 dpi) 18.2 x 12.2 inches or 46.3 x 30.9 cm. The corresponding values for the Canon 1D Mark III 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-1D Mark III has a native sensitivity range from ISO 100 to ISO 3200, which can be extended to ISO 50-6400. The corresponding ISO settings for the Canon EOS 6D are ISO 100 to ISO 25600, with the possibility to increase the ISO range to 50-102400.
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"). Of the two cameras under consideration, the 6D offers substantially better image quality than the 1D Mark III (overall score 11 points higher). The advantage is based on 1.1 bits higher color depth, 0.4 EV in additional dynamic range, and 1.1 stops in additional low light sensitivity. The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.
| DXO |
|Canon 1D Mark III||APS-H||10.1||3888||2592||none||22.7||11.7||1078||71|
|Canon 6D||Full Frame||20.0||5472||3648||1080/30p||23.8||12.1||2340||82|
|Canon 6D Mark II||Full Frame||26.0||6240||4160||1080/60p||24.4||11.9||2862||85|
|Canon 1D X Mark II||Full Frame||20.0||5472||3648||4K/60p||24.1||13.5||3207||88|
|Canon 5DS||Full Frame||50.3||8688||5792||1080/30p||24.7||12.4||2381||87|
|Canon 5DS R||Full Frame||50.3||8688||5792||1080/30p||24.6||12.4||2308||86|
|Canon 7D II||APS-C||20.0||5472||3648||1080/60p||22.4||11.8||1082||70|
|Canon 5D Mark III||Full Frame||22.1||5760||3840||1080/30p||24.0||11.7||2293||81|
|Canon 1D Mark IV||APS-H||16.0||4896||3264||1080/30p||22.8||12.0||1320||74|
|Canon 5D Mark II||Full Frame||21.0||5616||3744||1080/30p||23.7||11.9||1815||79|
|Canon 1Ds Mark III||Full Frame||21.0||5616||3744||none||24.0||12.0||1663||80|
|Canon 1D Mark II N||APS-H||8.2||3504||2336||none||22.3||11.2||975||66|
|Canon 1D Mark II||APS-H||8.2||3504||2336||none||22.3||11.1||1003||66|
|Canon 1Ds||Full Frame||11.0||4064||2704||none||21.8||11.0||954||63|
|Nikon D3||Full Frame||12.1||4256||2832||none||23.5||12.2||2290||81|
Many modern cameras are not only capable of taking still images, but can also record movies. The 6D indeed provides for movie recording, while the 1D Mark III does not. The highest resolution format that the 6D can use is 1080/30p.
Apart from body and sensor, cameras can and do differ across a range of features. The 1D Mark III and the 6D 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 III offers a wider field of view (100%) than the one in the 6D (97%), so that a larger proportion of the captured image is visible in the finder. On the other hand, the viewfinder of the 6D has a higher magnification (0.71x vs 0.58x), 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 Mark III and Canon 6D along with similar information for a selection of comparators.
|Canon 1D Mark III||optical||Y||3.0||230||fixed||n||1/8000s||10.0||n||n|
|Canon 6D Mark II||optical||Y||3.0||1040||swivel||Y||1/4000s||6.5||n||n|
|Canon 1D X Mark II||optical||Y||3.2||1620||fixed||Y||1/8000s||16.0||n||n|
|Canon 5DS R||optical||Y||3.2||1040||fixed||n||1/8000s||5.0||n||n|
|Canon 7D II||optical||Y||3.0||1040||fixed||n||1/8000s||10.0||Y||n|
|Canon 5D Mark III||optical||Y||3.2||1040||fixed||n||1/8000s||6.0||n||n|
|Canon 1D Mark IV||optical||Y||3.0||920||fixed||n||1/8000s||10.0||n||n|
|Canon 5D Mark II||optical||Y||3.0||920||fixed||n||1/8000s||3.9||n||n|
|Canon 1Ds Mark III||optical||Y||3.0||230||fixed||n||1/8000s||5.0||n||n|
|Canon 1D Mark II N||optical||Y||2.5||230||fixed||n||1/8000s||8.5||n||n|
|Canon 1D Mark II||optical||Y||2.0||230||fixed||n||1/8000s||8.3||n||n|
The 1D Mark III writes its imaging data to Compact Flash or SDHC cards, while the 6D uses SDXC cards. The 1D Mark III features dual card slots, which can be very useful in case a memory card fails. In contrast, the 6D only has one slot. The 6D supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the 1D Mark III cannot take advantage of Ultra High Speed SD cards.
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 III and Canon EOS 6D and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
| NFC |
|Canon 1D Mark III||Y||-||-||-||-||-||2.0||-||-||-|
|Canon 6D Mark II||Y||stereo||mono||Y||-||mini||2.0||Y||Y||Y|
|Canon 1D X Mark II||Y||mono||mono||Y||Y||mini||3.0||-||-||-|
|Canon 5DS R||Y||mono||mono||Y||-||mini||3.0||-||-||-|
|Canon 7D II||Y||stereo||mono||Y||Y||mini||3.0||-||-||-|
|Canon 5D Mark III||Y||mono||mono||Y||Y||mini||2.0||-||-||-|
|Canon 1D Mark IV||Y||stereo||-||Y||-||mini||2.0||-||-||-|
|Canon 5D Mark II||Y||mono||mono||Y||-||mini||2.0||-||-||-|
|Canon 1Ds Mark III||Y||mono||-||-||-||-||2.0||-||-||-|
|Canon 1D Mark II N||Y||-||-||-||-||-||1.1||-||-||-|
|Canon 1D Mark II||Y||-||-||-||-||-||1.1||-||-||-|
It is notable that the 6D offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the 1D Mark III does not provide wifi capability.
Studio photographers will appreciate that the Canon 1D Mark III (unlike the 6D) 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 6D has an internal geolocalization sensor and can record GPS coordinates in its EXIF data.
Both the 1D Mark III and the 6D have been discontinued, but can regularly be found used on eBay. The 1D Mark III was replaced by the Canon 1D Mark IV, while the 6D was followed by the Canon 6D Mark II. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Canon website.
So what conclusions can be drawn? Is there a clear favorite between the Canon 1D Mark III and the Canon 6D? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.
Advantages of the Canon EOS-1D Mark III:
- More complete view: Has a viewfinder with a larger field of view (100% vs 97%).
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
- Faster burst: Shoots at higher frequency (10 vs 4.5 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 (2200 versus 1090) on a single battery charge.
- 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.
- More heavily discounted: Has been available for much longer (launched in February 2007).
Arguments in favor of the Canon EOS 6D:
- More detail: Has more megapixels (20 vs 10.1MP), which boosts linear resolution by 41%.
- Better image quality: Scores substantially higher (11 points) in the DXO overall evaluation.
- Richer colors: Generates noticeably more natural colors (1.1 bits more color depth).
- Better low-light sensitivity: Can shoot in dim conditions (1.1 stops ISO advantage).
- Better jpgs: Has a more modern image processing engine (DIGIC 5+ vs DIGIC III).
- Broader imaging potential: Can capture not only stills but also 1080/30p video.
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.71x vs 0.58x).
- More detailed LCD: Has a higher resolution rear screen (1040k vs 230k dots).
- More compact: Is smaller (145x111mm vs 156x157mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 385g or 33 percent) and is thus easier to take along.
- Easier geotagging: Features an internal GPS sensor to log localization data.
- Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
- Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
- More affordable: Was introduced into a lower priced category (53 percent cheaper at launch).
- More modern: Reflects 5 years and 6 months of technical progress since the 1D Mark III launch.
If the count of individual advantages (bullet points above) is taken as a guide, the 6D is the clear winner of the contest (15 : 8 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 Mark III and the Canon 6D 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 partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the 1D Mark III or the 6D. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.
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 (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.
|Canon 1D Mark III||..||..||..||o||..||Feb 2007||4,499|
|Canon 6D||+ +||83/100||4.5/5||4.5/5||4.5/5||Sep 2012||2,099|
|Canon 6D Mark II||+||80/100||4.5/5||4/5||4/5||Jun 2017||1,999|
|Canon 1D X Mark II||..||89/100||4.5/5||5/5||4.5/5||Feb 2016||5,999|
|Canon 5DS||+||83/100||4.5/5||5/5||4.5/5||Feb 2015||3,699|
|Canon 5DS R||+||83/100||5/5||5/5||4.5/5||Feb 2015||3,699|
|Canon 7D II||+||84/100||4/5||5/5||4.5/5||Sep 2014||1,799|
|Canon 70D||+ +||83/100||4.5/5||4.5/5||5/5||Jul 2013||1,199|
|Canon 5D Mark III||+ +||82/100||4.5/5||5/5||4.5/5||Mar 2012||3,499|
|Canon 1D Mark IV||..||89/100||..||5/5||..||Oct 2009||4,999|
|Canon 5D Mark II||91/100||79/100||4/5||5/5||..||Sep 2008||3,499|
|Canon 1Ds Mark III||..||+ +||4.5/5||..||..||Aug 2007||7,999|
|Canon 1D Mark II N||..||..||..||..||..||Aug 2005||3,999|
|Canon 1D Mark II||..||+ +||..||o||..||Jan 2004||4,499|
|Canon 1Ds||..||+ +||..||..||..||Sep 2002||8,999|
|Nikon D3||..||+ +||5/5||o||4.5/5||Aug 2007||4,999|
|Nikon D2Xs||..||..||..||o||..||Jun 2006||4,699|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
Care should be taken when interpreting the review scores above, though. The ratings are only valid when referring to cameras in the same category and of the same age. 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. It should also be noted that some of the review sites have over time altered the way they render their verdicts.
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.
Specifications: Canon 1D Mark III vs Canon 6D
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 Model||Canon 1D Mark III||Canon 6D|
|Camera Type||Digital single lens reflex||Digital single lens reflex|
|Camera Lens||Canon EF mount lenses||Canon EF mount lenses|
|Launch Date||February 2007||September 2012|
|Launch Price||USD 4,499||USD 2,099|
|Sensor Specs||Canon 1D Mark III||Canon 6D|
|Sensor Format||APS-H Sensor||Full Frame Sensor|
|Sensor Size||28.1 x 18.7 mm||36.0 x 24.0 mm|
|Sensor Area||525.47 mm2||864 mm2|
|Sensor Diagonal||33.8 mm||43.3 mm|
|Sensor Resolution||10.1 Megapixels||20 Megapixels|
|Image Resolution||3888 x 2592 pixels||5472 x 3648 pixels|
|Pixel Pitch||7.21 μm||6.57 μm|
|Pixel Density||1.92 MP/cm2||2.31 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||no Video||1080/30p Video|
|ISO Setting||100 - 3,200 ISO||100 - 25,600 ISO|
|ISO Boost||50 - 6,400 ISO||50 - 102,400 ISO|
|Image Processor||DIGIC III||DIGIC 5+|
|DXO Sensor Quality (score)||71||82|
|DXO Color Depth (bits)||22.7||23.8|
|DXO Dynamic Range (EV)||11.7||12.1|
|DXO Low Light (ISO)||1078||2340|
|Screen Specs||Canon 1D Mark III||Canon 6D|
|Viewfinder Type||Optical viewfinder||Optical viewfinder|
|Viewfinder Field of View||100%||97%|
|Top-Level Screen||Control Panel||Control Panel|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||3.0inch|
|LCD Resolution||230k dots||1040k dots|
|LCD Attachment||Fixed screen||Fixed screen|
|Shooting Specs||Canon 1D Mark III||Canon 6D|
|Focus System||Phase-detect AF||Phase-detect AF|
|Continuous Shooting||10 shutter flaps/s||4.5 shutter flaps/s|
|Shutter Life Expectancy||300 000 actuations||100 000 actuations|
|Fill Flash||no On-Board Flash||no On-Board Flash|
|Storage Medium||CF or SDHC cards||SDXC cards|
|Second Storage Option||Dual card slots||Single card slot|
|UHS card support||no||UHS-I|
|Connectivity Specs||Canon 1D Mark III||Canon 6D|
|Studio Flash||PC Sync socket||no PC Sync|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||no HDMI||mini HDMI|
|Microphone Port||no MIC socket||External MIC port|
|Wifi Support||no Wifi||Wifi built-in|
|Geotagging||no internal GPS||GPS built-in|
|Body Specs||Canon 1D Mark III||Canon 6D|
|Environmental Sealing||Weathersealed body||Weathersealed body|
|Battery Life (CIPA)||2200 shots per charge||1090 shots per charge|
156 x 157 x 80 mm
(6.1 x 6.2 x 3.1 in)
145 x 111 x 71 mm
(5.7 x 4.4 x 2.8 in)
|Camera Weight||1155 g (40.7 oz)||770 g (27.2 oz)|
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