Canon 1D Mark III vs Panasonic G3
The Canon EOS-1D Mark III and the Panasonic Lumix DMC-G3 are two digital cameras that were announced, respectively, in February 2007 and May 2011. The 1D Mark III is a DSLR, while the G3 is a mirrorless interchangeable lens camera. The cameras are based on an APS-H (1D Mark III) and a Four Thirds (G3) sensor. The Canon has a resolution of 10.1 megapixels, whereas the Panasonic provides 15.8 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
|Canon 1D Mark III||Panasonic G3|
|Digital single lens reflex||Mirrorless system camera|
|Canon EF mount lenses||Micro Four Thirds lenses|
|10.1 MP, APS-H Sensor||15.8 MP, Four Thirds Sensor|
|no Video||1080/60i Video|
|ISO 100-3200 (50-6400)||ISO 160-6400|
|Optical viewfinder||Electronic viewfinder (1440k dots)|
|3.0" LCD, 230k dots||3.0" LCD, 460k dots|
|Fixed screen (not touch-sensitive)||Swivel touchscreen|
|10 shutter flaps per second||4 shutter flaps per second|
|Weathersealed body||Not weather sealed|
|2200 shots per battery charge||270 shots per battery charge|
|156 x 157 x 80 mm, 1155 g||115 x 84 x 47 mm, 336 g|
Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS-1D Mark III and the Panasonic Lumix DMC-G3? 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 side-by-side display below illustrates the physical size and weight of the Canon 1D Mark III and the Panasonic G3. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All size dimensions are rounded to the nearest millimeter.
The G3 can be obtained in four different colors (black, brown, red, white), while the 1D Mark III is only available in black.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Panasonic G3 is considerably smaller (61 percent) than the Canon 1D Mark III. Moreover, the G3 is substantially lighter (71 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 G3 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 will tend to go along with bigger and heavier lenses, although exceptions exist. You can compare the optics available for the two cameras in the Canon EF Lens Catalog (1D Mark III) and the Micro Four Thirds Lens Catalog (G3). Mirrorless cameras, such as the G3, have moreover the advantage that they can use many lenses from other systems via adapters, as they have a relatively short flange to focal plane distance.
Concerning battery life, the 1D Mark III gets 2200 shots out of its LP-E4 battery, while the G3 can take 270 images on a single charge of its DMW-BLD10 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.
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, just select a new right or left comparator from among the camera models in the table. Alternatively, you can also move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.
|Canon 1D Mark III»||6.1 in||6.2 in||3.1 in||40.7 oz||2200||Y||Feb 2007||4,499||-||Canon 1D Mark III|
|Panasonic G3«||4.5 in||3.3 in||1.9 in||11.9 oz||270||n||May 2011||599||-||Panasonic G3|
|Canon 5DS R« »||6.0 in||4.6 in||3.0 in||32.8 oz||700||Y||Feb 2015||3,699||Canon 5DS R|
|Canon 5D Mark III« »||6.0 in||4.6 in||3.0 in||33.5 oz||950||Y||Mar 2012||3,499||-||Canon 5D Mark III|
|Canon 1D Mark IV« »||6.1 in||6.2 in||3.1 in||43.4 oz||1500||Y||Oct 2009||4,999||-||Canon 1D Mark IV|
|Canon 5D Mark II« »||6.0 in||4.5 in||3.0 in||30.0 oz||850||Y||Sep 2008||3,499||-||Canon 5D Mark II|
|Canon 1Ds Mark III« »||5.9 in||6.3 in||3.1 in||48.9 oz||1800||Y||Aug 2007||7,999||-||Canon 1Ds Mark III|
|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 N|
|Canon 1D Mark II« »||6.1 in||6.2 in||3.1 in||54.1 oz||1200||Y||Jan 2004||4,499||-||Canon 1D Mark II|
|Canon 1Ds« »||6.1 in||6.2 in||3.1 in||44.6 oz||600||Y||Sep 2002||8,999||-||Canon 1Ds|
|Nikon D3« »||6.3 in||6.2 in||3.5 in||45.9 oz||4300||Y||Aug 2007||4,999||-||Nikon D3|
|Nikon D2Xs« »||6.2 in||5.9 in||3.4 in||44.2 oz||3800||Y||Jun 2006||4,699||-||Nikon D2Xs|
|Panasonic G6« »||4.8 in||3.3 in||2.8 in||13.8 oz||340||n||Apr 2013||599||-||Panasonic G6|
|Panasonic G5« »||4.7 in||3.3 in||2.8 in||14.0 oz||320||n||Jul 2012||599||-||Panasonic G5|
|Panasonic GX1« »||4.6 in||2.7 in||1.5 in||11.2 oz||320||n||Nov 2011||699||-||Panasonic GX1|
|Panasonic G2« »||4.9 in||3.3 in||2.9 in||15.1 oz||360||n||Mar 2010||599||-||Panasonic G2|
|Panasonic GH2« »||4.9 in||3.5 in||3.0 in||15.6 oz||330||n||Sep 2010||899||-||Panasonic GH2|
|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 manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The G3 was launched at a markedly lower price (by 87 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.
The size of the imaging sensor is a crucial determinant 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. 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 associated with larger, more expensive camera bodies and lenses.
Of the two cameras under consideration, the Canon 1D Mark III features an APS-H sensor and the Panasonic G3 a Four Thirds sensor. The sensor area in the G3 is 57 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.3 and 2.0. The sensor in the 1D Mark III has a native 3:2 aspect ratio, while the one in the G3 offers a 4:3 aspect.
Despite having a smaller sensor, the G3 offers a higher resolution of 15.8 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 3.77μm versus 7.21μm for the 1D Mark III). However, it should be noted that the G3 is much more recent (by 4 years and 2 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 Panasonic G3 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the G3 for good quality output (200 dots per inch) amounts to 23 x 17.2 inch or 58.3 x 43.8 cm, for very good quality (250 dpi) 18.4 x 13.8 inch or 46.7 x 35 cm, and for excellent quality (300 dpi) 15.3 x 11.5 inch or 38.9 x 29.2 cm. The corresponding values for the Canon 1D Mark III are 19.4 x 13 inch or 49.4 x 32.9 cm for good quality, 15.6 x 10.4 inch or 39.5 x 26.3 cm for very good quality, and 13 x 8.6 inch 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 Panasonic Lumix DMC-G3 are ISO 160 to ISO 6400 (no boost).
Consistent information on actual sensor performance is available from DXO Mark for many cameras. This service determines an overall sensor rating, as well as sub-scores for low-light sensitivity ("DXO Sports"), dynamic range ("DXO Landscape"), and color depth ("DXO Portrait"). Of the two cameras under review, the 1D Mark III provides substantially higher image quality than the G3, with an overall score that is 15 points higher. This advantage is based on 1.7 bits higher color depth, 1.1 EV in additional dynamic range, and 0.7 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.
|Canon 1D Mark III»||APS-H||10.1||3888||2592||-||22.7||11.7||1078||71||Canon 1D Mark III|
|Panasonic G3«||Four Thirds||15.8||4592||3448||1080/60i||21.0||10.6||667||56||Panasonic G3|
|Canon 5DS R« »||Full Frame||50.3||8688||5792||1080/30p||24.6||12.4||2308||86||Canon 5DS R|
|Canon 5D Mark III« »||Full Frame||22.1||5760||3840||1080/30p||24.0||11.7||2293||81||Canon 5D Mark III|
|Canon 1D Mark IV« »||APS-H||16.0||4896||3264||1080/30p||22.8||12.0||1320||74||Canon 1D Mark IV|
|Canon 5D Mark II« »||Full Frame||21.0||5616||3744||1080/30p||23.7||11.9||1815||79||Canon 5D Mark II|
|Canon 1Ds Mark III« »||Full Frame||21.0||5616||3744||-||24.0||12.0||1663||80||Canon 1Ds Mark III|
|Canon 1D Mark II N« »||APS-H||8.2||3504||2336||-||22.3||11.2||975||66||Canon 1D Mark II N|
|Canon 1D Mark II« »||APS-H||8.2||3504||2336||-||22.3||11.1||1003||66||Canon 1D Mark II|
|Canon 1Ds« »||Full Frame||11.0||4064||2704||-||21.8||11.0||954||63||Canon 1Ds|
|Nikon D3« »||Full Frame||12.1||4256||2832||-||23.5||12.2||2290||81||Nikon D3|
|Nikon D2Xs« »||APS-C||12.2||4288||2848||-||22.2||10.9||489||59||Nikon D2Xs|
|Panasonic G6« »||Four Thirds||15.9||4608||3456||1080/60p||21.3||11.5||639||61||Panasonic G6|
|Panasonic G5« »||Four Thirds||15.9||4608||3456||1080/60p||-||-||-||-||Panasonic G5|
|Panasonic GX1« »||Four Thirds||15.8||4592||3448||1080/60p||20.8||10.6||703||55||Panasonic GX1|
|Panasonic G2« »||Four Thirds||12.0||4000||3000||720/30p||21.2||10.3||493||53||Panasonic G2|
|Panasonic GH2« »||Four Thirds||15.9||4608||3456||1080/60i||21.2||11.3||655||60||Panasonic GH2|
Many modern cameras cannot only take still pictures, but also record videos. The G3 indeed provides for movie recording, while the 1D Mark III does not. The highest resolution format that the G3 can use is 1080/60i.
Apart from body and sensor, cameras can and do differ across a variety of features. For example, the G3 has an electronic viewfinder (1440k dots), while the 1D Mark III has an optical one. Both systems have their advantages, with the electronic viewfinder making it possible to project supplementary shooting information into the framing view, whereas the optical viewfinder offers lag-free viewing and a very clear framing image. The viewfinders of both cameras offer the same field of view (100%), but the viewfinder of the G3 has a higher magnification than the one of the 1D Mark III (0.70x 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 Panasonic G3 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 1D Mark III|
|Panasonic G3«||1440||n||3.0||460||swivel||Y||1/4000s||4.0||Y||n||Panasonic G3|
|Canon 5DS R« »||optical||Y||3.2||1040||fixed||n||1/8000s||5.0||n||n||Canon 5DS R|
|Canon 5D Mark III« »||optical||Y||3.2||1040||fixed||n||1/8000s||6.0||n||n||Canon 5D Mark III|
|Canon 1D Mark IV« »||optical||Y||3.0||920||fixed||n||1/8000s||10.0||n||n||Canon 1D Mark IV|
|Canon 5D Mark II« »||optical||Y||3.0||920||fixed||n||1/8000s||3.9||n||n||Canon 5D Mark II|
|Canon 1Ds Mark III« »||optical||Y||3.0||230||fixed||n||1/8000s||5.0||n||n||Canon 1Ds Mark III|
|Canon 1D Mark II N« »||optical||Y||2.5||230||fixed||n||1/8000s||8.5||n||n||Canon 1D Mark II N|
|Canon 1D Mark II« »||optical||Y||2.0||230||fixed||n||1/8000s||8.3||n||n||Canon 1D Mark II|
|Canon 1Ds« »||optical||Y||2.0||120||fixed||n||1/8000s||3.0||n||n||Canon 1Ds|
|Nikon D3« »||optical||Y||3.0||922||fixed||n||1/8000s||11.0||n||n||Nikon D3|
|Nikon D2Xs« »||optical||Y||2.5||230||fixed||n||1/8000s||5.0||n||n||Nikon D2Xs|
|Panasonic G6« »||1440||n||3.0||1036||swivel||Y||1/4000s||7.0||Y||n||Panasonic G6|
|Panasonic G5« »||1440||n||3.0||920||swivel||Y||1/4000s||6.0||Y||n||Panasonic G5|
|Panasonic GX1« »||-||n||3.0||460||fixed||Y||1/4000s||4.2||Y||n||Panasonic GX1|
|Panasonic G2« »||1440||n||3.0||460||swivel||Y||1/4000s||2.6||Y||n||Panasonic G2|
|Panasonic GH2« »||1534||n||3.0||460||swivel||n||1/4000s||3.0||Y||n||Panasonic GH2|
One feature that is present on the 1D Mark III, but is missing on the G3 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 G3 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 1D Mark III does not have a selfie-screen.
The 1D Mark III writes its imaging data to Compact Flash or SDHC cards, while the G3 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 G3 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 Panasonic Lumix DMC-G3 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
|Canon 1D Mark III»||Y||-||-||-||-||-||2.0||-||-||-||Canon 1D Mark III|
|Panasonic G3«||Y||stereo||mono||-||-||mini||2.0||-||-||-||Panasonic G3|
|Canon 5DS R« »||Y||mono||mono||Y||-||mini||3.0||-||-||-||Canon 5DS R|
|Canon 5D Mark III« »||Y||mono||mono||Y||Y||mini||2.0||-||-||-||Canon 5D Mark III|
|Canon 1D Mark IV« »||Y||stereo||-||Y||-||mini||2.0||-||-||-||Canon 1D Mark IV|
|Canon 5D Mark II« »||Y||mono||mono||Y||-||mini||2.0||-||-||-||Canon 5D Mark II|
|Canon 1Ds Mark III« »||Y||-||-||-||-||-||2.0||-||-||-||Canon 1Ds Mark III|
|Canon 1D Mark II N« »||Y||-||-||-||-||-||1.1||-||-||-||Canon 1D Mark II N|
|Canon 1D Mark II« »||Y||-||-||-||-||-||1.1||-||-||-||Canon 1D Mark II|
|Canon 1Ds« »||Y||-||-||-||-||-||FW||-||-||-||Canon 1Ds|
|Nikon D3« »||Y||-||-||-||-||mini||2.0||-||-||-||Nikon D3|
|Nikon D2Xs« »||Y||-||-||-||-||-||2.0||-||-||-||Nikon D2Xs|
|Panasonic G6« »||Y||stereo||mono||Y||-||mini||2.0||Y||Y||-||Panasonic G6|
|Panasonic G5« »||Y||stereo||mono||-||-||mini||2.0||-||-||-||Panasonic G5|
|Panasonic GX1« »||Y||stereo||mono||-||-||mini||2.0||-||-||-||Panasonic GX1|
|Panasonic G2« »||Y||stereo||mono||-||-||mini||2.0||-||-||-||Panasonic G2|
|Panasonic GH2« »||Y||stereo||mono||Y||-||mini||2.0||-||-||-||Panasonic GH2|
Studio photographers will appreciate that the Canon 1D Mark III (unlike the G3) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
Both the 1D Mark III and the G3 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 G3 was followed by the Panasonic G5. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Canon and Panasonic websites.
So how do things add up? Which of the two cameras – the Canon 1D Mark III or the Panasonic G3 – has the upper hand? Is one clearly better than the other? A synthesis of the relative strong points of each of the models is listed below.
Arguments in favor of the Canon EOS-1D Mark III:
- Better image quality: Scores substantially higher (15 points) in the DXO overall assessment.
- Richer colors: Generates images with noticeably better colors (1.7 bits more color depth).
- More dynamic range: Captures a larger spectrum of light and dark details (1.1 EV of extra DR).
- Better low-light sensitivity: Requires less light for good images (0.7 stops ISO advantage).
- Brighter framing: Features an optical viewfinder for clear, lag-free composition.
- 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 4 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 270) 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 Panasonic Lumix DMC-G3:
- More detail: Has more megapixels (15.8 vs 10.1MP), which boosts linear resolution by 23%.
- Broader imaging potential: Can capture not only stills but also 1080/60i video.
- More framing info: Has an electronic viewfinder that displays shooting data.
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.70x vs 0.58x).
- More detailed LCD: Has a higher resolution rear screen (460k vs 230k dots).
- More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
- Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
- More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
- More compact: Is smaller (115x84mm vs 156x157mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 819g or 71 percent) and is thus easier to take along.
- More legacy lens friendly: Can use many non-native lenses via adapters.
- Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
- More affordable: Was introduced into a lower priced category (87 percent cheaper at launch).
- More modern: Reflects 4 years and 2 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 match-up finishes in a tie (14 points each). However, the relative importance of the various individual camera aspects will vary according to personal preferences and needs, so that you might like to apply corresponding weights to the particular features before making a decision on a new camera. A professional wedding photographer will view the differences between cameras in a way that diverges from the perspective of a travel photog, and a person interested in cityscapes has distinct needs from a macro shooter. Hence, the decision which camera is best and worth buying is often a very personal one.
How about other alternatives? Do the specifications of the Canon 1D Mark III and the Panasonic G3 place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Mirrorless Interchangeable Lens Camera listings whether the two cameras rank among the cream of the crop.
In any case, while the specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it says little about, for example, the shooting experience and imaging performance of the 1D Mark III and the G3 in practical situations. 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 expert reviews 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 1D Mark III|
|Panasonic G3«||+ +||75/100||4.5/5||4.5/5||5/5||May 2011||599||-||Panasonic G3|
|Canon 5DS R« »||+||83/100||5/5||5/5||4.5/5||Feb 2015||3,699||Canon 5DS R|
|Canon 5D Mark III« »||+ +||82/100||4.5/5||5/5||4.5/5||Mar 2012||3,499||-||Canon 5D Mark III|
|Canon 1D Mark IV« »||-||89/100||-||5/5||-||Oct 2009||4,999||-||Canon 1D Mark IV|
|Canon 5D Mark II« »||91/100||79/100||4/5||5/5||-||Sep 2008||3,499||-||Canon 5D Mark II|
|Canon 1Ds Mark III« »||-||+ +||4.5/5||-||-||Aug 2007||7,999||-||Canon 1Ds Mark III|
|Canon 1D Mark II N« »||-||-||-||-||-||Aug 2005||3,999||-||Canon 1D Mark II N|
|Canon 1D Mark II« »||-||+ +||-||o||-||Jan 2004||4,499||-||Canon 1D Mark II|
|Canon 1Ds« »||-||+ +||-||-||-||Sep 2002||8,999||-||Canon 1Ds|
|Nikon D3« »||-||+ +||5/5||o||4.5/5||Aug 2007||4,999||-||Nikon D3|
|Nikon D2Xs« »||-||-||-||o||-||Jun 2006||4,699||-||Nikon D2Xs|
|Panasonic G6« »||+ +||-||5/5||-||4.5/5||Apr 2013||599||-||Panasonic G6|
|Panasonic G5« »||+ +||-||4.5/5||4.5/5||4.5/5||Jul 2012||599||-||Panasonic G5|
|Panasonic GX1« »||+||77/100||4.5/5||4.5/5||4.5/5||Nov 2011||699||-||Panasonic GX1|
|Panasonic G2« »||-||72/100||4/5||4/5||4.5/5||Mar 2010||599||-||Panasonic G2|
|Panasonic GH2« »||+ +||79/100||4.5/5||4.5/5||5/5||Sep 2010||899||-||Panasonic GH2|
|Notes: (+ +) 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. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and comparisons of ratings among very different cameras or across long time periods have little meaning. 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 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.
- Canon 1D Mark III vs Nikon W300
- Canon 1D Mark III vs Olympus E-M5
- Canon 1D Mark III vs Panasonic FZ2000
- Canon 1D Mark III vs Sony RX0 II
- Canon 1D Mark III vs Sony RX100 II
- Canon 1D Mark III vs Sony WX800
- Canon G9 X Mark II vs Panasonic G3
- Leica V-LUX 5 vs Panasonic G3
- Nikon D200 vs Panasonic G3
- Olympus E-M1 vs Panasonic G3
- Panasonic G3 vs Panasonic TZ95
- Panasonic G3 vs Sony A7
Specifications: Canon 1D Mark III vs Panasonic G3
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||Panasonic G3|
|Camera Type||Digital single lens reflex||Mirrorless system camera|
|Camera Lens||Canon EF mount lenses||Micro Four Thirds lenses|
|Launch Date||February 2007||May 2011|
|Launch Price||USD 4499||USD 599|
|Sensor Specs||Canon 1D Mark III||Panasonic G3|
|Sensor Format||APS-H Sensor||Four Thirds Sensor|
|Sensor Size||28.1 x 18.7 mm||17.3 x 13.0 mm|
|Sensor Area||525.47 mm2||224.9 mm2|
|Sensor Diagonal||33.8 mm||21.6 mm|
|Sensor Resolution||10.1 Megapixels||15.8 Megapixels|
|Image Resolution||3888 x 2592 pixels||4592 x 3448 pixels|
|Pixel Pitch||7.21 μm||3.77 μm|
|Pixel Density||1.92 MP/cm2||7.04 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||no Video||1080/60i Video|
|ISO Setting||100-3200 ISO||160-6400 ISO|
|ISO Boost||50-6400 ISO||no Enhancement|
|Image Processor||DIGIC III||Venus FHD|
|DXO Sensor Quality (score)||71||56|
|DXO Color Depth (bits)||22.7||21.0|
|DXO Dynamic Range (EV)||11.7||10.6|
|DXO Low Light (ISO)||1078||667|
|Screen Specs||Canon 1D Mark III||Panasonic G3|
|Viewfinder Type||Optical viewfinder||Electronic viewfinder|
|Viewfinder Field of View||100%||100%|
|Viewfinder Resolution||1440k dots|
|Top-Level Screen||Control Panel||no Top Display|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0 inch||3.0 inch|
|LCD Resolution||230k dots||460k dots|
|LCD Attachment||Fixed screen||Swivel screen|
|Touch Input||no Touchscreen||Touchscreen|
|Shooting Specs||Canon 1D Mark III||Panasonic G3|
|Autofocus System||Phase-detect AF||Contrast-detect AF|
|Continuous Shooting||10 shutter flaps/s||4 shutter flaps/s|
|Fill Flash||no On-Board Flash||Build-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||Panasonic G3|
|Studio Flash||PC Sync socket||no PC Sync|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||no HDMI||mini HDMI|
|Wifi Support||no Wifi||no Wifi|
|Body Specs||Canon 1D Mark III||Panasonic G3|
|Environmental Sealing||Weathersealed body||Not weather sealed|
|Battery Life (CIPA)||2200 shots per charge||270 shots per charge|
156 x 157 x 80 mm
(6.1 x 6.2 x 3.1 in)
115 x 84 x 47 mm
(4.5 x 3.3 x 1.9 in)
|Camera Weight||1155 g (40.7 oz)||336 g (11.9 oz)|
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