Canon 1D Mark III vs 550D
The Canon EOS-1D Mark III and the Canon EOS 550D (labelled Canon T2i in some countries) are two digital cameras that were revealed to the public, respectively, in February 2007 and February 2010. Both are DSLR (Digital Single Lens Reflex) cameras that are based on an APS-H (1D Mark III) and an APS-C (550D) sensor. The 1D Mark III has a resolution of 10.1 megapixels, whereas the 550D provides 17.9 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 550D? 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.
The physical size and weight of the Canon 1D Mark III and the Canon 550D are illustrated in the side-by-side display below. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All width, height and depth measures 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 550D is considerably smaller (48 percent) than the Canon 1D Mark III. Moreover, the 550D is substantially lighter (54 percent) than the 1D Mark III. It is worth mentioning in this context that the 1D Mark III is splash and dust resistant, while the 550D 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 1D Mark III) will tend to go along with bigger and heavier lenses, while more compact options are available for the smaller-sensor camera (550D). 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 550D can take 440 images on a single charge of its LP-E8 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 550D, Canon provides the BG-E8 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 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.
|1.||Canon 1D Mark III||156 mm||157 mm||80 mm||1155 g||2200||Y||Feb 2007||4,499||ebay.com|
|2.||Canon 550D||129 mm||98 mm||62 mm||530 g||440||n||Feb 2010||699||ebay.com|
|3.||Canon 5DS R||152 mm||116 mm||76 mm||930 g||700||Y||Feb 2015||3,699||amazon.com|
|4.||Canon 750D||132 mm||101 mm||78 mm||555 g||440||n||Feb 2015||749||ebay.com|
|5.||Canon 700D||133 mm||100 mm||79 mm||580 g||440||n||Mar 2013||649||ebay.com|
|6.||Canon 5D Mark III||152 mm||116 mm||76 mm||950 g||950||Y||Mar 2012||3,499||ebay.com|
|7.||Canon 650D||133 mm||100 mm||79 mm||575 g||440||n||Jun 2012||849||ebay.com|
|8.||Canon 600D||133 mm||100 mm||80 mm||570 g||440||n||Feb 2011||599||ebay.com|
|9.||Canon 1D Mark IV||156 mm||157 mm||80 mm||1230 g||1500||Y||Oct 2009||4,999||ebay.com|
|10.||Canon 500D||129 mm||98 mm||62 mm||520 g||400||n||Mar 2009||799||ebay.com|
|11.||Canon 5D Mark II||152 mm||114 mm||75 mm||850 g||850||Y||Sep 2008||3,499||ebay.com|
|12.||Canon 1Ds Mark III||150 mm||160 mm||80 mm||1385 g||1800||Y||Aug 2007||7,999||ebay.com|
|13.||Canon 1D Mark II N||156 mm||158 mm||80 mm||1565 g||1200||Y||Aug 2005||3,999||ebay.com|
|14.||Canon 1D Mark II||156 mm||158 mm||80 mm||1535 g||1200||Y||Jan 2004||4,499||ebay.com|
|15.||Canon 1Ds||156 mm||158 mm||80 mm||1265 g||600||Y||Sep 2002||8,999||ebay.com|
|16.||Nikon D3||160 mm||157 mm||88 mm||1300 g||4300||Y||Aug 2007||4,999||ebay.com|
|17.||Nikon D2Xs||158 mm||150 mm||86 mm||1252 g||3800||Y||Jun 2006||4,699||ebay.com|
|Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.|
The price is, of course, an important factor in any camera decision. The retail prices at the time of the camera’s release place the model in the market relative to other models in the producer’s line-up and the competition. The 550D was launched at a markedly lower price (by 84 percent) than the 1D Mark III, which puts it into a different market segment. Normally, street prices remain initially close to the MSRP, but after a couple of months, the first discounts appear. 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.
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 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. Furthermore, a large sensor camera will give the photographer more possibilities to use shallow depth-of-field in order to isolate a subject from the background. On the downside, larger sensors tend to be more expensive and lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Canon 1D Mark III features an APS-H sensor and the Canon 550D an APS-C sensor. The sensor area in the 550D is 37 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.3 and 1.6. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
Technology-wise, the 550D uses a more advanced image processing engine (DIGIC 4) than the 1D Mark III (DIGIC III), with benefits for noise reduction, color accuracy, and processing speed.
Despite having a smaller sensor, the 550D offers a higher resolution of 17.9 megapixels, compared with 10.1 MP of the 1D 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 4.31μm versus 7.21μm for the 1D Mark III). However, it should be noted that the 550D is much more recent (by 2 years and 11 months) than the 1D Mark III, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently.
The resolution advantage of the Canon 550D implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the 550D for good quality output (200 dots per inch) amounts to 25.9 x 17.3 inches or 65.8 x 43.9 cm, for very good quality (250 dpi) 20.7 x 13.8 inches or 52.7 x 35.1 cm, and for excellent quality (300 dpi) 17.3 x 11.5 inches or 43.9 x 29.3 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 550D are ISO 100 to ISO 6400, with the possibility to increase the ISO range to 100-12800.
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 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. Of the two cameras under review, the 1D Mark III has a notably higher overall DXO score than the 550D (overall score 5 points higher), which gives it an advantage in terms of imaging quality. This advantage is based on 0.6 bits higher color depth, 0.2 EV in additional dynamic range, and 0.5 stops in additional low light sensitivity. The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.
|1.||Canon 1D Mark III||APS-H||10.1||3888||2592||none||22.7||11.7||1078||71|
|3.||Canon 5DS R||Full Frame||50.3||8688||5792||1080/30p||24.6||12.4||2308||86|
|6.||Canon 5D Mark III||Full Frame||22.1||5760||3840||1080/30p||24.0||11.7||2293||81|
|9.||Canon 1D Mark IV||APS-H||16.0||4896||3264||1080/30p||22.8||12.0||1320||74|
|11.||Canon 5D Mark II||Full Frame||21.0||5616||3744||1080/30p||23.7||11.9||1815||79|
|12.||Canon 1Ds Mark III||Full Frame||21.0||5616||3744||none||24.0||12.0||1663||80|
|13.||Canon 1D Mark II N||APS-H||8.2||3504||2336||none||22.3||11.2||975||66|
|14.||Canon 1D Mark II||APS-H||8.2||3504||2336||none||22.3||11.1||1003||66|
|15.||Canon 1Ds||Full Frame||11.0||4064||2704||none||21.8||11.0||954||63|
|16.||Nikon D3||Full Frame||12.1||4256||2832||none||23.5||12.2||2290||81|
Many modern cameras cannot only take still pictures, but also record videos. The 550D indeed provides for movie recording, while the 1D Mark III does not. The highest resolution format that the 550D can use is 1080/30p.
Beyond body and sensor, cameras can and do differ across a range of features. The 1D Mark III and the 550D 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 550D (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the 1D Mark III has a higher magnification (0.58x vs 0.54x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The table below summarizes some of the other core capabilities of the Canon 1D Mark III and Canon 550D in connection with corresponding information for a sample of similar cameras.
|1.||Canon 1D Mark III||optical||Y||3.0 / 230||fixed||n||1/8000s||10.0/s||n||n|
|2.||Canon 550D||optical||n||3.0 / 1040||fixed||n||1/4000s||3.7/s||Y||n|
|3.||Canon 5DS R||optical||Y||3.2 / 1040||fixed||n||1/8000s||5.0/s||n||n|
|4.||Canon 750D||optical||n||3.0 / 1040||swivel||Y||1/4000s||5.0/s||Y||n|
|5.||Canon 700D||optical||n||3.0 / 1040||swivel||Y||1/4000s||5.0/s||Y||n|
|6.||Canon 5D Mark III||optical||Y||3.2 / 1040||fixed||n||1/8000s||6.0/s||n||n|
|7.||Canon 650D||optical||n||3.0 / 1040||swivel||Y||1/4000s||5.0/s||Y||n|
|8.||Canon 600D||optical||n||3.0 / 1040||swivel||n||1/4000s||3.7/s||Y||n|
|9.||Canon 1D Mark IV||optical||Y||3.0 / 920||fixed||n||1/8000s||10.0/s||n||n|
|10.||Canon 500D||optical||n||3.0 / 920||fixed||n||1/4000s||3.4/s||Y||n|
|11.||Canon 5D Mark II||optical||Y||3.0 / 920||fixed||n||1/8000s||3.9/s||n||n|
|12.||Canon 1Ds Mark III||optical||Y||3.0 / 230||fixed||n||1/8000s||5.0/s||n||n|
|13.||Canon 1D Mark II N||optical||Y||2.5 / 230||fixed||n||1/8000s||8.5/s||n||n|
|14.||Canon 1D Mark II||optical||Y||2.0 / 230||fixed||n||1/8000s||8.3/s||n||n|
|15.||Canon 1Ds||optical||Y||2.0 / 120||fixed||n||1/8000s||3.0/s||n||n|
|16.||Nikon D3||optical||Y||3.0 / 922||fixed||n||1/8000s||11.0/s||n||n|
|17.||Nikon D2Xs||optical||Y||2.5 / 230||fixed||n||1/8000s||5.0/s||n||n|
|Notes: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.|
One feature that is present on the 1D Mark III, but is missing on the 550D 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 1D Mark III writes its imaging data to Compact Flash or SDHC cards, while the 550D 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 550D only has one slot.
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 550D and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Mic / Speaker
|1.||Canon 1D Mark III||Y||- / -||-||-||-||2.0||-||-||-|
|2.||Canon 550D||Y||stereo / -||Y||-||mini||2.0||-||-||-|
|3.||Canon 5DS R||Y||mono / mono||Y||-||mini||3.0||-||-||-|
|4.||Canon 750D||Y||stereo / mono||Y||-||mini||2.0||Y||Y||-|
|5.||Canon 700D||Y||stereo / mono||Y||-||mini||2.0||-||-||-|
|6.||Canon 5D Mark III||Y||mono / mono||Y||Y||mini||2.0||-||-||-|
|7.||Canon 650D||Y||stereo / mono||Y||-||mini||2.0||-||-||-|
|8.||Canon 600D||Y||mono / mono||Y||-||mini||2.0||-||-||-|
|9.||Canon 1D Mark IV||Y||stereo / -||Y||-||mini||2.0||-||-||-|
|10.||Canon 500D||Y||mono / mono||-||-||mini||2.0||-||-||-|
|11.||Canon 5D Mark II||Y||mono / mono||Y||-||mini||2.0||-||-||-|
|12.||Canon 1Ds Mark III||Y||mono / -||-||-||-||2.0||-||-||-|
|13.||Canon 1D Mark II N||Y||- / -||-||-||-||1.1||-||-||-|
|14.||Canon 1D Mark II||Y||- / -||-||-||-||1.1||-||-||-|
|15.||Canon 1Ds||Y||- / -||-||-||-||FW||-||-||-|
|16.||Nikon D3||Y||- / -||-||-||mini||2.0||-||-||-|
|17.||Nikon D2Xs||Y||- / -||-||-||-||2.0||-||-||-|
Studio photographers will appreciate that the Canon 1D Mark III (unlike the 550D) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
Both the 1D Mark III and the 550D 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 550D was followed by the Canon 600D. 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 the Canon 1D Mark III better than the Canon 550D or vice versa? The listing below highlights the relative strengths of the two models.
Reasons to prefer the Canon EOS-1D Mark III:
- Better image quality: Scores markedly higher (5 points) in the DXO overall assessment.
- Better low-light sensitivity: Requires less light for good images (0.5 stops ISO advantage).
- 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 (0.58x vs 0.54x).
- Easier setting verification: Features an LCD display on top to control shooting parameters.
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
- Faster burst: Shoots at higher frequency (10 vs 3.7 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 440) on a single battery charge.
- Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
- 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).
Advantages of the Canon EOS 550D:
- More detail: Has more megapixels (17.9 vs 10.1MP), which boosts linear resolution by 33%.
- Better jpgs: Has a more modern image processing engine (DIGIC 4 vs DIGIC III).
- Broader imaging potential: Can capture not only stills but also 1080/30p video.
- More detailed LCD: Has a higher resolution rear screen (1040k vs 230k dots).
- More compact: Is smaller (129x98mm vs 156x157mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 625g or 54 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 (84 percent cheaper at launch).
- More modern: Reflects 2 years and 11 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 1D Mark III is the clear winner of the match-up (13 : 9 points). However, the relevance of individual strengths will vary across photographers, so that you might want to apply your own weighing scheme to the summary points when reflecting and deciding 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 550D 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 550D. At times, user reviews, such as those published at amazon, address these issues in a useful manner, but such feedback is on many occasions incomplete, inconsistent, and unreliable.
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 (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.
|1.||Canon 1D Mark III||..||..||..||..||..||..||Feb 2007||4,499||ebay.com|
|2.||Canon 550D||..||+ +||..||77/100||4/5||4.5/5||Feb 2010||699||ebay.com|
|3.||Canon 5DS R||5/5||+||..||83/100||5/5||4.5/5||Feb 2015||3,699||amazon.com|
|4.||Canon 750D||5/5||..||..||75/100||4.5/5||4.5/5||Feb 2015||749||ebay.com|
|5.||Canon 700D||..||..||..||76/100||4.5/5||4.5/5||Mar 2013||649||ebay.com|
|6.||Canon 5D Mark III||..||+ +||..||82/100||4.5/5||4.5/5||Mar 2012||3,499||ebay.com|
|7.||Canon 650D||4/5||+ +||..||77/100||4.5/5||4.5/5||Jun 2012||849||ebay.com|
|8.||Canon 600D||3/5||o||..||77/100||4.5/5||4.5/5||Feb 2011||599||ebay.com|
|9.||Canon 1D Mark IV||5/5||..||..||89/100||..||..||Oct 2009||4,999||ebay.com|
|10.||Canon 500D||..||+ +||..||74/100||4.5/5||4.5/5||Mar 2009||799||ebay.com|
|11.||Canon 5D Mark II||4/5||91/100||..||79/100||4/5||..||Sep 2008||3,499||ebay.com|
|12.||Canon 1Ds Mark III||..||..||..||+ +||4.5/5||..||Aug 2007||7,999||ebay.com|
|13.||Canon 1D Mark II N||..||..||..||..||..||..||Aug 2005||3,999||ebay.com|
|14.||Canon 1D Mark II||..||..||..||+ +||..||..||Jan 2004||4,499||ebay.com|
|15.||Canon 1Ds||..||..||..||+ +||..||..||Sep 2002||8,999||ebay.com|
|16.||Nikon D3||..||..||..||+ +||5/5||4.5/5||Aug 2007||4,999||ebay.com|
|17.||Nikon D2Xs||..||..||..||..||..||..||Jun 2006||4,699||ebay.com|
|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? If you would like to see a different side-by-side camera review, just make a corresponding selection in the search boxes 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.
- Canon 1D Mark III vs Canon 350D
- Canon 1D Mark III vs Canon SL3
- Canon 1D Mark III vs Canon T7
- Canon 1D Mark III vs Panasonic G85
- Canon 1D Mark III vs Panasonic GH2
- Canon 1D Mark III vs Sony HX80
- Canon 350D vs Canon 550D
- Canon 550D vs Canon M3
- Canon 550D vs Canon XSi
- Canon 550D vs Fujifilm X100S
- Canon 550D vs Panasonic GH3
- Canon 550D vs Sony HX80
Specifications: Canon 1D Mark III vs Canon 550D
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 550D|
|Camera Type||Digital single lens reflex||Digital single lens reflex|
|Camera Lens||Canon EF mount lenses||Canon EF mount lenses|
|Launch Date||February 2007||February 2010|
|Launch Price||USD 4,499||USD 699|
|Sensor Specs||Canon 1D Mark III||Canon 550D|
|Sensor Format||APS-H Sensor||APS-C Sensor|
|Sensor Size||28.1 x 18.7 mm||22.3 x 14.9 mm|
|Sensor Area||525.47 mm2||332.27 mm2|
|Sensor Diagonal||33.8 mm||26.8 mm|
|Sensor Resolution||10.1 Megapixels||17.9 Megapixels|
|Image Resolution||3888 x 2592 pixels||5184 x 3456 pixels|
|Pixel Pitch||7.21 μm||4.31 μm|
|Pixel Density||1.92 MP/cm2||5.39 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||no Video||1080/30p Video|
|ISO Setting||100 - 3,200 ISO||100 - 6,400 ISO|
|ISO Boost||50 - 6,400 ISO||100 - 12,800 ISO|
|Image Processor||DIGIC III||DIGIC 4|
|DXO Sensor Quality (score)||71||66|
|DXO Color Depth (bits)||22.7||22.1|
|DXO Dynamic Range (EV)||11.7||11.5|
|DXO Low Light (ISO)||1078||784|
|Screen Specs||Canon 1D Mark III||Canon 550D|
|Viewfinder Type||Optical viewfinder||Optical viewfinder|
|Viewfinder Field of View||100%||95%|
|Top-Level Screen||Control Panel||no Top Display|
|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 550D|
|Focus System||Phase-detect AF||Phase-detect AF|
|Continuous Shooting||10 shutter flaps/s||3.7 shutter flaps/s|
|Shutter Life Expectancy||300 000 actuations||100 000 actuations|
|Fill Flash||no On-Board Flash||Built-in Flash|
|Storage Medium||CF or SDHC cards||SDXC cards|
|Second Storage Option||Dual card slots||Single card slot|
|UHS card support||no||no|
|Connectivity Specs||Canon 1D Mark III||Canon 550D|
|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||no Wifi|
|Body Specs||Canon 1D Mark III||Canon 550D|
|Environmental Sealing||Weathersealed body||not weather sealed|
|Battery Life (CIPA)||2200 shots per charge||440 shots per charge|
156 x 157 x 80 mm
(6.1 x 6.2 x 3.1 in)
129 x 98 x 62 mm
(5.1 x 3.9 x 2.4 in)
|Camera Weight||1155 g (40.7 oz)||530 g (18.7 oz)|
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