Canon 1D Mark III vs Panasonic G1
The Canon EOS-1D Mark III and the Panasonic Lumix DMC-G1 are two digital cameras that were revealed to the public, respectively, in February 2007 and September 2008. The 1D Mark III is a DSLR, while the G1 is a mirrorless interchangeable lens camera. The cameras are based on an APS-H (1D Mark III) and a Four Thirds (G1) sensor. The Canon has a resolution of 10.1 megapixels, whereas the Panasonic provides 12 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 Panasonic Lumix DMC-G1? 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 Panasonic G1 is provided 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 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 Panasonic G1 is considerably smaller (57 percent) than the Canon 1D Mark III. Moreover, the G1 is substantially lighter (69 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 G1 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 (G1). Mirrorless cameras, such as the G1, 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 G1 can take 410 images on a single charge of its DMW-BLB13 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 table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. 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.
|Canon 1D Mark III||6.1 in||6.2 in||3.1 in||40.7 oz||2200||Y||Feb 2007||4,499|
|Panasonic G1||4.9 in||3.3 in||1.8 in||12.7 oz||410||n||Sep 2008||599|
|Canon 5DS R||6.0 in||4.6 in||3.0 in||32.8 oz||700||Y||Feb 2015||3,699|
|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|
|Olympus E-410||5.1 in||3.6 in||2.1 in||15.3 oz||500||n||Mar 2007||699|
|Panasonic G10||4.9 in||3.3 in||2.9 in||13.7 oz||380||n||Mar 2010||499|
|Panasonic G2||4.9 in||3.3 in||2.9 in||15.1 oz||360||n||Mar 2010||599|
|Panasonic GH1||4.9 in||3.5 in||1.8 in||13.6 oz||300||n||Mar 2009||899|
|Panasonic L10||5.3 in||3.8 in||3.1 in||19.6 oz||450||n||Aug 2007||599|
Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
(1) Number of images that can be taken on a full battery charge according to the CIPA-standard; (2) Official announcement.
Any camera decision will naturally be influenced heavily by the price. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The G1 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 imaging sensor is at the core of digital cameras and its size is one of the main determining factors 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. 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 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 G1 a Four Thirds sensor. The sensor area in the G1 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 G1 offers a 4:3 aspect.
Despite having a smaller sensor, the G1 offers a higher resolution of 12 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 4.33μm versus 7.21μm for the 1D Mark III). However, it should be noted that the G1 is a somewhat more recent model (by 1 year and 6 months) than the 1D Mark III, and its sensor might have benefitted from technological advances during this time that partly offset its pixel-size disadvantage.
The resolution advantage of the Panasonic G1 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the G1 for good quality output (200 dots per inch) amounts to 20 x 15 inches or 50.8 x 38.1 cm, for very good quality (250 dpi) 16 x 12 inches or 40.6 x 30.5 cm, and for excellent quality (300 dpi) 13.3 x 10 inches or 33.9 x 25.4 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 Panasonic Lumix DMC-G1 are ISO 100 to ISO 1600, with the possibility to increase the ISO range to 100-3200.
For many cameras, data on sensor performance has been reported by DXO Mark. 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 provides substantially higher image quality than the G1, with an overall score that is 18 points higher. This advantage is based on 1.6 bits higher color depth, 1.4 EV in additional dynamic range, and 1.2 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.
|Canon 1D Mark III||APS-H||10.1||3888||2592||none||22.7||11.7||1078||71|
|Panasonic G1||Four Thirds||12.0||4000||3000||none||21.1||10.3||463||53|
|Canon 5DS R||Full Frame||50.3||8688||5792||1080/30p||24.6||12.4||2308||86|
|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|
|Olympus E-410||Four Thirds||10.0||3648||2736||none||21.1||10.0||494||51|
|Panasonic G10||Four Thirds||12.0||4000||3000||720/30p||21.2||10.1||411||52|
|Panasonic G2||Four Thirds||12.0||4000||3000||720/30p||21.2||10.3||493||53|
|Panasonic GH1||Four Thirds||12.0||4000||3000||1080/24p||21.6||11.6||772||64|
|Panasonic L10||Four Thirds||10.0||3648||2736||none||21.3||10.8||429||55|
Apart from body and sensor, cameras can and do differ across a range of features. For example, the G1 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 G1 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 table below summarizes some of the other core capabilities of the Canon 1D Mark III and Panasonic G1 in connection with corresponding information for a sample of similar cameras.
|Canon 1D Mark III||optical||Y||3.0||230||fixed||n||1/8000s||10.0||n||n|
|Canon 5DS R||optical||Y||3.2||1040||fixed||n||1/8000s||5.0||n||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|
One feature that is present on the 1D Mark III, but is missing on the G1 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 G1 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 G1 uses SDHC cards. The 1D Mark III features dual card slots, which can be very useful in case a memory card fails. In contrast, the G1 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-G1 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
|Canon 1D Mark III||Y||-||-||-||-||-||2.0||-||-||-|
|Canon 5DS R||Y||mono||mono||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||-||-||-||-||-||2.0||-||-||-|
|Canon 1D Mark II N||Y||-||-||-||-||-||1.1||-||-||-|
|Canon 1D Mark II||Y||-||-||-||-||-||1.1||-||-||-|
Studio photographers will appreciate that the Canon 1D Mark III (unlike the G1) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
Both the 1D Mark III and the G1 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 G1 was followed by the Panasonic G2. 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 what is the bottom line? Which of the two cameras – the Canon 1D Mark III or the Panasonic G1 – has the upper hand? Is one clearly better than the other? Below is a summary of the relative strengths of each of the two contestants.
Reasons to prefer the Canon EOS-1D Mark III:
- Better image quality: Scores substantially higher (18 points) in the DXO overall assessment.
- Richer colors: Generates images with noticeably better colors (1.6 bits more color depth).
- More dynamic range: Captures a larger spectrum of light and dark details (1.4 EV of extra DR).
- Better low-light sensitivity: Requires less light for good images (1.2 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 3 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 410) 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 on the market for longer (launched in February 2007).
Advantages of the Panasonic Lumix DMC-G1:
- More detail: Has more megapixels (12 vs 10.1MP), which boosts linear resolution by 7%.
- 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.
- More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
- More compact: Is smaller (124x84mm vs 156x157mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 795g or 69 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: Was introduced somewhat (1 year and 6 months) more recently.
If the count of relative strengths (bullet points above) is taken as a measure, the 1D Mark III emerges as the winner of the contest (14 : 12 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 Panasonic G1 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 comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it says little about, for example, the shooting experience and imaging performance of the 1D Mark III and the G1 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.
This is why expert reviews are important. The following table reports the overall ratings of the cameras as published by some of the major 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.
|Canon 1D Mark III||..||..||..||o||..||Feb 2007||4,499|
|Panasonic G1||+ +||70/100||4/5||4.5/5||4.5/5||Sep 2008||599|
|Canon 5DS R||+||83/100||5/5||5/5||4.5/5||Feb 2015||3,699|
|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|
|Olympus E-410||86/100||+ +||4/5||o||4.5/5||Mar 2007||699|
|Panasonic G10||..||70/100||4/5||..||4/5||Mar 2010||499|
|Panasonic G2||..||72/100||4/5||4/5||4.5/5||Mar 2010||599|
|Panasonic GH1||+ +||72/100||4.5/5||5/5||4.5/5||Mar 2009||899|
|Panasonic L10||85/100||+||3.5/5||o||4/5||Aug 2007||599|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
Care should be taken when interpreting the review scores above, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. Also, please note that some of the review sites have changed their methodology and reporting over time.
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 Canon 77D
- Canon 1D Mark III vs Canon G1 X Mark II
- Canon 1D Mark III vs Fujifilm X-T1
- Canon 1D Mark III vs Nikon Z50
- Canon 1D Mark III vs Sony RX10
- Canon 1D Mark III vs Sony ZV-1
- Canon 5DS vs Panasonic G1
- Canon 7D II vs Panasonic G1
- Canon SX740 vs Panasonic G1
- Nikon D2H vs Panasonic G1
- Nikon Df vs Panasonic G1
- Panasonic G1 vs YI M1
Specifications: Canon 1D Mark III vs Panasonic G1
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 G1|
|Camera Type||Digital single lens reflex||Mirrorless system camera|
|Camera Lens||Canon EF mount lenses||Micro Four Thirds lenses|
|Launch Date||February 2007||September 2008|
|Launch Price||USD 4,499||USD 599|
|Sensor Specs||Canon 1D Mark III||Panasonic G1|
|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||12 Megapixels|
|Image Resolution||3888 x 2592 pixels||4000 x 3000 pixels|
|Pixel Pitch||7.21 μm||4.33 μm|
|Pixel Density||1.92 MP/cm2||5.34 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||no Video||no Video|
|ISO Setting||100 - 3,200 ISO||100 - 1,600 ISO|
|ISO Boost||50 - 6,400 ISO||100 - 3,200 ISO|
|Image Processor||DIGIC III||Venus HD|
|DXO Sensor Quality (score)||71||53|
|DXO Color Depth (bits)||22.7||21.1|
|DXO Dynamic Range (EV)||11.7||10.3|
|DXO Low Light (ISO)||1078||463|
|Screen Specs||Canon 1D Mark III||Panasonic G1|
|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||3.0inch||3.0inch|
|LCD Resolution||230k dots||460k dots|
|LCD Attachment||Fixed screen||Swivel screen|
|Shooting Specs||Canon 1D Mark III||Panasonic G1|
|Focus System||Phase-detect AF||Contrast-detect AF|
|Continuous Shooting||10 shutter flaps/s||3 shutter flaps/s|
|Fill Flash||no On-Board Flash||Build-in Flash|
|Storage Medium||CF or SDHC cards||SDHC cards|
|Second Storage Option||Dual card slots||Single card slot|
|UHS card support||no||no|
|Connectivity Specs||Canon 1D Mark III||Panasonic G1|
|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 G1|
|Environmental Sealing||Weathersealed body||not weather sealed|
|Battery Life (CIPA)||2200 shots per charge||410 shots per charge|
156 x 157 x 80 mm
(6.1 x 6.2 x 3.1 in)
124 x 84 x 45 mm
(4.9 x 3.3 x 1.8 in)
|Camera Weight||1155 g (40.7 oz)||360 g (12.7 oz)|
Did you notice an error on this page? If so, please get in touch, so that we can correct the information.