Canon 1Ds Mark III vs G12
The Canon EOS-1Ds Mark III and the Canon PowerShot G12 are two digital cameras that were revealed to the public, respectively, in August 2007 and September 2010. The 1Ds Mark III is a DSLR, while the G12 is a fixed lens compact. The cameras are based on a full frame (1Ds Mark III) and a 1/1.7-inch (G12) sensor. The 1Ds Mark III has a resolution of 21 megapixels, whereas the G12 provides 10 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
|Canon 1Ds Mark III||Canon G12|
|Digital single lens reflex||Fixed lens compact camera|
|Canon EF mount lenses||28-140mm f/2.8-4.5|
|21 MP, Full Frame Sensor||10 MP, 1/1.7" Sensor|
|no Video||720/24p Video|
|ISO 100-1600 (50-3200)||ISO 80-3200 (80-12800)|
|Optical viewfinder||Optical viewfinder|
|3.0" LCD, 230k dots||2.8" LCD, 461k dots|
|Fixed screen (not touch-sensitive)||Swivel screen (not touch-sensitive)|
|5 shutter flaps per second||1.1 shutter flaps per second|
|Weathersealed body||Not weather sealed|
|1800 shots per battery charge||370 shots per battery charge|
|150 x 160 x 80 mm, 1385 g||112 x 76 x 48 mm, 401 g|
Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS-1Ds Mark III and the Canon PowerShot G12? 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 1Ds Mark III and the Canon G12. 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 G12 is considerably smaller (65 percent) than the Canon 1Ds Mark III. It is worth mentioning in this context that the 1Ds Mark III is splash and dust resistant, while the G12 does not feature any corresponding weather-sealing.
The above size and weight comparisons are to some extent incomplete and possibly misleading, as the G12 has a lens built in, whereas the 1Ds Mark III is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup. You can compare the optics available for the 1Ds Mark III and their specifications in the Canon EF Lens Catalog.
As can be seen in the images above, the 1Ds 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 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 1Ds Mark III»||150 mm||160 mm||80 mm||1385 g||1800||Y||Aug 2007||7,999||Canon 1Ds Mark III|
|Canon G12«||112 mm||76 mm||48 mm||401 g||370||n||Sep 2010||499||Canon G12|
|Canon 1D X Mark II« »||158 mm||168 mm||83 mm||1530 g||1210||Y||Feb 2016||5,999||Canon 1D X Mark II|
|Canon G16« »||109 mm||76 mm||40 mm||356 g||360||n||Aug 2013||549||Canon G16|
|Canon 1D C« »||158 mm||164 mm||83 mm||1545 g||1120||Y||Apr 2012||14,999||Canon 1D C|
|Canon 5D Mark III« »||152 mm||116 mm||76 mm||950 g||950||Y||Mar 2012||3,499||Canon 5D Mark III|
|Canon 6D« »||145 mm||111 mm||71 mm||770 g||1090||Y||Sep 2012||2,099||Canon 6D|
|Canon G15« »||107 mm||76 mm||40 mm||352 g||350||n||Sep 2012||499||Canon G15|
|Canon 1D X« »||158 mm||168 mm||83 mm||1551 g||1120||Y||Oct 2011||6,799||Canon 1D X|
|Canon 1D Mark IV« »||156 mm||157 mm||80 mm||1230 g||1500||Y||Oct 2009||4,999||Canon 1D Mark IV|
|Canon 5D Mark II« »||152 mm||114 mm||75 mm||850 g||850||Y||Sep 2008||3,499||Canon 5D Mark II|
|Canon 1D Mark III« »||156 mm||157 mm||80 mm||1155 g||2200||Y||Feb 2007||4,499||Canon 1D Mark III|
|Canon 1Ds Mark II« »||156 mm||158 mm||80 mm||1215 g||1200||Y||Sep 2004||7,999||Canon 1Ds Mark II|
|Fujifilm X10« »||117 mm||70 mm||57 mm||350 g||270||n||Sep 2011||599||Fujifilm X10|
|Nikon D3X« »||160 mm||157 mm||88 mm||1260 g||4400||Y||Dec 2008||7,999||Nikon D3X|
|Olympus E-450« »||130 mm||91 mm||53 mm||440 g||500||n||Mar 2009||499||Olympus E-450|
|Panasonic G2« »||124 mm||84 mm||74 mm||428 g||360||n||Mar 2010||599||Panasonic G2|
|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 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 G12 was launched at a lower price than the 1Ds Mark III, despite having a lens built in. 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. 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. Moreover, a large sensor camera will give the photographer more control over depth-of-field in the image and, thus, the ability to better 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 1Ds Mark III features a full frame sensor and the Canon G12 a 1/1.7-inch sensor. The sensor area in the G12 is 95 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.0 and 4.6. The sensor in the 1Ds Mark III has a native 3:2 aspect ratio, while the one in the G12 offers a 4:3 aspect.
With 21MP, the 1Ds Mark III offers a higher resolution than the G12 (10MP), but the 1Ds Mark III nevertheless has larger individual pixels (pixel pitch of 6.41μm versus 2.07μm for the G12) due to its larger sensor. However, the G12 is a much more recent model (by 3 years) than the 1Ds Mark III, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixels.
The resolution advantage of the Canon 1Ds Mark III implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the 1Ds Mark III for good quality output (200 dots per inch) amounts to 28.1 x 18.7 inch or 71.3 x 47.5 cm, for very good quality (250 dpi) 22.5 x 15 inch or 57.1 x 38 cm, and for excellent quality (300 dpi) 18.7 x 12.5 inch or 47.5 x 31.7 cm. The corresponding values for the Canon G12 are 18.2 x 13.7 inch or 46.3 x 34.7 cm for good quality, 14.6 x 10.9 inch or 37.1 x 27.8 cm for very good quality, and 12.2 x 9.1 inch or 30.9 x 23.2 cm for excellent quality prints.
The Canon EOS-1Ds Mark III has a native sensitivity range from ISO 100 to ISO 1600, which can be extended to ISO 50-3200. The corresponding ISO settings for the Canon PowerShot G12 are ISO 80 to ISO 3200, with the possibility to increase the ISO range to 80-12800.
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 review, the 1Ds Mark III provides substantially higher image quality than the G12, with an overall score that is 33 points higher. This advantage is based on 3.6 bits higher color depth, 0.8 EV in additional dynamic range, and 3.4 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 1Ds Mark III||Full Frame||21.0||5616||3744||none||24.0||12.0||1663||80||Canon 1Ds Mark III|
|Canon G12||1/1.7||10.0||3648||2736||720/24p||20.4||11.2||161||47||Canon G12|
|Canon 1D X Mark II||Full Frame||20.0||5472||3648||4K/60p||24.1||13.5||3207||88||Canon 1D X Mark II|
|Canon G16||1/1.7||12.0||4000||3000||1080/60p||21.0||11.7||230||54||Canon G16|
|Canon 1D C||Full Frame||17.9||5184||3456||4K/24p||..||..||..||..||Canon 1D C|
|Canon 5D Mark III||Full Frame||22.1||5760||3840||1080/30p||24.0||11.7||2293||81||Canon 5D Mark III|
|Canon 6D||Full Frame||20.0||5472||3648||1080/30p||23.8||12.1||2340||82||Canon 6D|
|Canon G15||1/1.7||12.0||4000||3000||1080/24p||19.9||11.5||165||46||Canon G15|
|Canon 1D X||Full Frame||17.9||5184||3456||1080/30p||23.8||11.8||2786||82||Canon 1D X|
|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 1D Mark III||APS-H||10.1||3888||2592||none||22.7||11.7||1078||71||Canon 1D Mark III|
|Canon 1Ds Mark II||Full Frame||16.6||4992||3328||none||23.3||11.3||1480||74||Canon 1Ds Mark II|
|Fujifilm X10||2/3||12.0||4000||3000||1080/30p||20.5||11.3||245||50||Fujifilm X10|
|Nikon D3X||Full Frame||24.4||6048||4032||none||24.7||13.7||1992||88||Nikon D3X|
|Olympus E-450||Four Thirds||10.0||3648||2736||none||21.5||10.5||512||56||Olympus E-450|
|Panasonic G2||Four Thirds||12.0||4000||3000||720/30p||21.2||10.3||493||53||Panasonic G2|
Many modern cameras cannot only take still pictures, but also record videos. The G12 indeed provides for movie recording, while the 1Ds Mark III does not. The highest resolution format that the G12 can use is 720/24p.
Apart from body and sensor, cameras can and do differ across a range of features. The 1Ds Mark III and the G12 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 adjacent table lists some of the other core features of the Canon 1Ds Mark III and Canon G12 along with similar information for a selection of comparators.
|Canon 1Ds Mark III||optical||Y||3.0||230||fixed||n||1/8000s||5.0||n||n||Canon 1Ds Mark III|
|Canon G12||optical||n||2.8||461||swivel||n||1/4000s||1.1||Y||Y||Canon G12|
|Canon 1D X Mark II||optical||Y||3.2||1620||fixed||Y||1/8000s||16.0||n||n||Canon 1D X Mark II|
|Canon G16||optical||n||3.0||922||fixed||n||1/4000s||2.2||Y||Y||Canon G16|
|Canon 1D C||optical||Y||3.2||1040||fixed||n||1/8000s||14.0||n||n||Canon 1D C|
|Canon 5D Mark III||optical||Y||3.2||1040||fixed||n||1/8000s||6.0||n||n||Canon 5D Mark III|
|Canon 6D||optical||Y||3.0||1040||fixed||n||1/4000s||4.5||n||n||Canon 6D|
|Canon G15||optical||n||3.0||922||fixed||n||1/4000s||2.1||Y||Y||Canon G15|
|Canon 1D X||optical||Y||3.2||1040||fixed||n||1/8000s||14.0||n||n||Canon 1D X|
|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 1D Mark III||optical||Y||3.0||230||fixed||n||1/8000s||10.0||n||n||Canon 1D Mark III|
|Canon 1Ds Mark II||optical||Y||2.0||230||fixed||n||1/8000s||4.0||n||n||Canon 1Ds Mark II|
|Fujifilm X10||optical||n||2.8||460||fixed||n||1/4000s||10.0||Y||Y||Fujifilm X10|
|Nikon D3X||optical||Y||3.0||922||fixed||n||1/8000s||5.0||n||n||Nikon D3X|
|Olympus E-450||optical||n||2.7||215||fixed||n||1/4000s||3.5||Y||n||Olympus E-450|
|Panasonic G2||1440||n||3.0||460||swivel||Y||1/4000s||2.6||Y||n||Panasonic G2|
One feature that is present on the 1Ds Mark III, but is missing on the G12 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 1Ds Mark III writes its imaging data to Compact Flash or SDHC cards, while the G12 uses SDXC 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-1Ds Mark III and Canon PowerShot G12 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
|Canon 1Ds Mark III||Y||none||none||-||-||none||2.0||-||-||-||Canon 1Ds Mark III|
|Canon G12||Y||stereo||mono||-||-||mini||2.0||-||-||-||Canon G12|
|Canon 1D X Mark II||Y||mono||mono||Y||Y||mini||3.0||-||-||-||Canon 1D X Mark II|
|Canon G16||Y||stereo||mono||-||-||mini||2.0||Y||-||-||Canon G16|
|Canon 1D C||Y||mono||mono||Y||Y||mini||2.0||-||-||-||Canon 1D C|
|Canon 5D Mark III||Y||mono||mono||Y||Y||mini||2.0||-||-||-||Canon 5D Mark III|
|Canon 6D||Y||mono||mono||Y||-||mini||2.0||Y||-||-||Canon 6D|
|Canon G15||Y||stereo||mono||-||-||mini||2.0||-||-||-||Canon G15|
|Canon 1D X||Y||mono||none||Y||-||mini||2.0||-||-||-||Canon 1D X|
|Canon 1D Mark IV||Y||stereo||none||Y||-||mini||2.0||-||-||-||Canon 1D Mark IV|
|Canon 5D Mark II||Y||mono||mono||Y||-||mini||2.0||-||-||-||Canon 5D Mark II|
|Canon 1D Mark III||Y||none||none||-||-||none||2.0||-||-||-||Canon 1D Mark III|
|Canon 1Ds Mark II||Y||none||none||-||-||none||2.0||-||-||-||Canon 1Ds Mark II|
|Fujifilm X10||Y||stereo||mono||-||-||mini||2.0||-||-||-||Fujifilm X10|
|Nikon D3X||Y||none||none||-||-||mini||2.0||-||-||-||Nikon D3X|
|Olympus E-450||Y||none||none||-||-||none||2.0||-||-||-||Olympus E-450|
|Panasonic G2||Y||stereo||mono||-||-||mini||2.0||-||-||-||Panasonic G2|
Studio photographers will appreciate that the Canon 1Ds Mark III (unlike the G12) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
Both the 1Ds Mark III and the G12 have been discontinued, but can regularly be found used on eBay. The 1Ds Mark III was replaced by the Canon 1DX, while the G12 was followed by the Canon G15. 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 is the bottom line? Which of the two cameras – the Canon 1Ds Mark III or the Canon G12 – 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.
Arguments in favor of the Canon EOS-1Ds Mark III:
- More detail: Offers more megapixels (21 vs 10MP) with a 48% higher linear resolution.
- Better image quality: Scores substantially higher (33 points) in the DXO overall assessment.
- Richer colors: Generates images with noticeably better colors (3.6 bits more color depth).
- More dynamic range: Captures a larger spectrum of light and dark details (0.8 EV of extra DR).
- Better low-light sensitivity: Requires less light for good images (3.4 stops ISO advantage).
- Easier setting verification: Features an LCD display on top to control shooting parameters.
- Larger screen: Has a bigger rear LCD (3.0" vs 2.8") for image review and settings control.
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
- Faster burst: Shoots at higher frequency (5 vs 1.1 flaps/sec) to capture the decisive moment.
- More flexible: Can take a variety of interchangeable lenses, including specialty optics.
- More portrait friendly: Features an integrated vertical grip for easier portrait shooting.
- Longer lasting: Can take more shots (1800 versus 370) 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.
- More heavily discounted: Has been available for much longer (launched in August 2007).
Advantages of the Canon PowerShot G12:
- Broader imaging potential: Can capture not only stills but also 720/24p video.
- More detailed LCD: Has a higher resolution rear screen (461k vs 230k dots).
- More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
- Ready to shoot: Comes with an integrated lens, while the 1Ds Mark III requires a separate lens.
- More compact: Is smaller (112x76mm vs 150x160mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight even though it has a lens built in (unlike the 1Ds Mark III).
- Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
- Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
- More affordable: Was introduced at a lower price, despite coming with a built-in lens.
- More modern: Reflects 3 years of technical progress since the 1Ds Mark III launch.
If the number of relative strengths (bullet points above) is taken as a guide, the 1Ds Mark III is the clear winner of the match-up (15 : 10 points). However, the pertinence of the various camera strengths will differ across photographers, so that you might want to weigh individual camera traits according to their importance for your own imaging needs before making a camera decision. 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 1Ds Mark III and the Canon G12 place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Travel-Zoom Camera listings whether the two cameras rank among the cream of the crop.
In any case, while the comparison of technical specifications can provide a useful overview of the capabilities of different cameras, it says little about, for example, the shooting experience and imaging performance of the 1Ds Mark III and the G12 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 where reviews by experts come in. 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.
The above review scores should be interpreted with care, though. The assessments were made in relation to similar cameras of the same technological generation. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. 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 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.
- Canon 1Ds Mark III vs Leica M10-P
- Canon 1Ds Mark III vs Leica M8
- Canon 1Ds Mark III vs Nikon D800
- Canon 1Ds Mark III vs Nikon Z7
- Canon 1Ds Mark III vs Panasonic GF7
- Canon 1Ds Mark III vs Panasonic GX80
- Canon 1Ds Mark III vs Sony A850
- Canon 1Ds Mark III vs Sony HX400V
- Canon G1 X Mark II vs Canon G12
- Canon G12 vs Nikon D90
- Canon G12 vs Panasonic S1
- Canon G12 vs Panasonic TZ100
Specifications: Canon 1Ds Mark III vs Canon G12
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 1Ds Mark III||Canon G12|
|Camera Type||Digital single lens reflex||Fixed lens compact camera|
|Camera Lens||Canon EF mount lenses||28-140mm f/2.8-4.5|
|Launch Date||August 2007||September 2010|
|Launch Price||USD 7999||USD 499|
|Sensor Specs||Canon 1Ds Mark III||Canon G12|
|Sensor Format||Full Frame Sensor||1/1.7" Sensor|
|Sensor Size||36.0 x 24.0 mm||7.6 x 5.7 mm|
|Sensor Area||864 mm2||43.32 mm2|
|Sensor Diagonal||43.3 mm||9.5 mm|
|Sensor Resolution||21 Megapixels||10 Megapixels|
|Image Resolution||5616 x 3744 pixels||3648 x 2736 pixels|
|Pixel Pitch||6.41 μm||2.07 μm|
|Pixel Density||2.43 MP/cm2||23.04 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||no Video||720/24p Video|
|ISO Setting||100-1600 ISO||80-3200 ISO|
|ISO Boost||50-3200 ISO||80-12800 ISO|
|Image Processor||DIGIC III (Dual)||DIGIC 4|
|DXO Sensor Quality (score)||80||47|
|DXO Color Depth (bits)||24.0||20.4|
|DXO Dynamic Range (EV)||12.0||11.2|
|DXO Low Light (ISO)||1663||161|
|Screen Specs||Canon 1Ds Mark III||Canon G12|
|Viewfinder Type||Optical viewfinder||Optical viewfinder|
|Viewfinder Field of View||100%|
|Top-Level Screen||Control Panel||no Top Display|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0 inch||2.8 inch|
|LCD Resolution||230k dots||461k dots|
|LCD Attachment||Fixed screen||Swivel screen|
|Shooting Specs||Canon 1Ds Mark III||Canon G12|
|Autofocus System||Phase-detect AF||Contrast-detect AF|
|Continuous Shooting||5 shutter flaps/s||1.1 shutter flaps/s|
|Fill Flash||no On-Board Flash||Build-in Flash|
|Storage Medium||CF or SDHC cards||SDXC cards|
|Second Storage Option||Single card slot||Single card slot|
|UHS card support||no||no|
|Connectivity Specs||Canon 1Ds Mark III||Canon G12|
|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 1Ds Mark III||Canon G12|
|Environmental Sealing||Weathersealed body||Not weather sealed|
|Battery Life (CIPA)||1800 shots per charge||370 shots per charge|
150 x 160 x 80 mm
(5.9 x 6.3 x 3.1 in)
112 x 76 x 48 mm
(4.4 x 3.0 x 1.9 in)
|Camera Weight||1385 g (48.9 oz)||401 g (14.1 oz)|
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