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Canon 1Ds Mark III vs Panasonic G3

The Canon EOS-1Ds Mark III and the Panasonic Lumix DMC-G3 are two digital cameras that were announced, respectively, in August 2007 and May 2011. The 1Ds Mark III is a DSLR, while the G3 is a mirrorless interchangeable lens camera. The cameras are based on a full frame (1Ds Mark III) and a Four Thirds (G3) sensor. The Canon has a resolution of 21 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.

Headline Specifications
Canon 1Ds Mark III
versus
Panasonic G3
Canon 1Ds Mark III   Panasonic G3
Digital single lens reflex Mirrorless system camera
Canon EF mount lenses Micro Four Thirds lenses
21 MP – Full Frame sensor 15.8 MP – Four Thirds sensor
no Video 1080/60i Video
ISO 100-1,600 (50 - 3,200) ISO 160-6,400
Optical viewfinder Electronic viewfinder (1440k dots)
3.0" LCD – 230k dots 3.0" LCD – 460k dots
Fixed screen (not touch-sensitive) Swivel touchscreen
5 shutter flaps per second 4 shutter flaps per second
Weathersealed bodynot weather sealed
1800 shots per battery charge270 shots per battery charge
150 x 160 x 80 mm, 1385 g 115 x 84 x 47 mm, 336 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS-1Ds 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.

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Body comparison

The side-by-side display below illustrates the physical size and weight of the Canon 1Ds Mark III and the Panasonic G3. 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 size dimensions are rounded to the nearest millimeter.

The G3 can be obtained in four different colors (black, brown, red, white), while the 1Ds Mark III is only available in black.

Size Canon 1Ds Mark III vs Panasonic G3
Compare 1Ds Mark III versus G3 top
Comparison 1Ds Mark III or G3 rear

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 (60 percent) than the Canon 1Ds Mark III. Moreover, the G3 is substantially lighter (76 percent) than the 1Ds Mark III. It is worth mentioning in this context that the 1Ds 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 (1Ds 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 1Ds Mark III gets 1800 shots out of its Canon LP-E4 battery, while the G3 can take 270 images on a single charge of its Panasonic DMW-BLD10 power pack. 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 table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. In case you want to display and compare another camera duo, you can use the CAM-parator app to select your camera combination among a large number of options.

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Body Specifications
  empty Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price
Street
Price
1.
 
Canon 1Ds Mark III 150 mm 160 mm 80 mm 1385 g 1800 Y Aug 2007 US$ 7 999ebay.com
2.
 
Panasonic G3 115 mm 84 mm 47 mm 336 g 270 n May 2011 US$ 599ebay.com
3.
 
Canon 1D Mark III 156 mm 157 mm 80 mm 1155 g 2200 Y Feb 2007 US$ 4 499ebay.com
4.
 
Canon 1Ds 156 mm 158 mm 80 mm 1265 g 600 Y Sep 2002 US$ 8 999ebay.com
5.
 
Canon 1Ds Mark II 156 mm 158 mm 80 mm 1215 g 1200 Y Sep 2004 US$ 7 999ebay.com
6.
 
Canon 1D C 158 mm 164 mm 83 mm 1545 g 1120 Y Apr 2012 US$ 14 999ebay.com
7.
 
Canon 1D X 158 mm 168 mm 83 mm 1551 g 1120 Y Oct 2011 US$ 6 799ebay.com
8.
 
Canon 1D X Mark II 158 mm 168 mm 83 mm 1530 g 1210 Y Feb 2016 US$ 5 999ebay.com
9.
 
Canon 1D X Mark III 158 mm 168 mm 83 mm 1440 g 2850 Y Jan 2020 US$ 6 499 amazon.com
10.
 
Canon 5D Mark II 152 mm 114 mm 75 mm 850 g 850 Y Sep 2008 US$ 3 499ebay.com
11.
 
Canon 5D Mark III 152 mm 116 mm 76 mm 950 g 950 Y Mar 2012 US$ 3 499ebay.com
12.
 
Nikon D3X 160 mm 157 mm 88 mm 1260 g 4400 Y Dec 2008 US$ 7 999ebay.com
13.
 
Panasonic G2 124 mm 84 mm 74 mm 428 g 360 n Mar 2010 US$ 599ebay.com
14.
 
Panasonic G5 120 mm 83 mm 71 mm 396 g 320 n Jul 2012 US$ 599ebay.com
15.
 
Panasonic G6 122 mm 85 mm 71 mm 390 g 340 n Apr 2013 US$ 599ebay.com
16.
 
Panasonic GH2 124 mm 90 mm 76 mm 442 g 330 n Sep 2010 US$ 899ebay.com
17.
 
Panasonic GX1 116 mm 68 mm 39 mm 318 g 320 n Nov 2011 US$ 699ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.

Any camera decision will naturally be influenced heavily by the price. 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 93 percent) than the 1Ds 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.

Sensor comparison

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. Further, a large sensor camera will give the photographer additional creative options when using shallow depth-of-field to isolate a subject from its background. On the downside, larger sensors are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Canon 1Ds Mark III features a full frame sensor and the Panasonic G3 a Four Thirds sensor. The sensor area in the G3 is 74 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.0 and 2.0. The sensor in the 1Ds Mark III has a native 3:2 aspect ratio, while the one in the G3 offers a 4:3 aspect.

Canon 1Ds Mark III and Panasonic G3 sensor measures

With 21MP, the 1Ds Mark III offers a higher resolution than the G3 (15.8MP), but the 1Ds Mark III nevertheless has larger individual pixels (pixel pitch of 6.41μm versus 3.77μm for the G3) due to its larger sensor. However, the G3 is a much more recent model (by 3 years and 8 months) 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 inches or 71.3 x 47.5 cm, for very good quality (250 dpi) 22.5 x 15 inches or 57.1 x 38 cm, and for excellent quality (300 dpi) 18.7 x 12.5 inches or 47.5 x 31.7 cm. The corresponding values for the Panasonic G3 are 23 x 17.2 inches or 58.3 x 43.8 cm for good quality, 18.4 x 13.8 inches or 46.7 x 35 cm for very good quality, and 15.3 x 11.5 inches or 38.9 x 29.2 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 Panasonic Lumix DMC-G3 are ISO 160 to ISO 6400 (no boost).

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.

1Ds Mark III versus G3 MP

For many cameras, data on sensor performance has been reported by DXO Mark. 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 1Ds Mark III provides substantially higher image quality than the G3, with an overall score that is 24 points higher. This advantage is based on 3 bits higher color depth, 1.4 EV in additional dynamic range, and 1.3 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.

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Sensor Characteristics
  empty Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Canon 1Ds Mark III Full Frame 21.0 5616 3744none24.012.0166380
2.
 
Panasonic G3 Four Thirds 15.8 4592 34481080/60i21.010.666756
3.
 
Canon 1D Mark III APS-H 10.1 3888 2592none22.711.7107871
4.
 
Canon 1Ds Full Frame 11.0 4064 2704none21.811.095463
5.
 
Canon 1Ds Mark II Full Frame 16.6 4992 3328none23.311.3148074
6.
 
Canon 1D C Full Frame 17.9 5184 34564K/24p24.313.0215585
7.
 
Canon 1D X Full Frame 17.9 5184 34561080/30p23.811.8278682
8.
 
Canon 1D X Mark II Full Frame 20.0 5472 36484K/60p24.113.5320788
9.
 
Canon 1D X Mark III Full Frame 20.0 5472 36484K/60p24.214.5324891
10.
 
Canon 5D Mark II Full Frame 21.0 5616 37441080/30p23.711.9181579
11.
 
Canon 5D Mark III Full Frame 22.1 5760 38401080/30p24.011.7229381
12.
 
Nikon D3X Full Frame 24.4 6048 4032none24.713.7199288
13.
 
Panasonic G2 Four Thirds 12.0 4000 3000720/30p21.210.349353
14.
 
Panasonic G5 Four Thirds 15.9 4608 34561080/60p21.411.661861
15.
 
Panasonic G6 Four Thirds 15.9 4608 34561080/60p21.311.563961
16.
 
Panasonic GH2 Four Thirds 15.9 4608 34561080/60i21.211.365560
17.
 
Panasonic GX1 Four Thirds 15.8 4592 34481080/60p20.810.670355
Note: DXO values in italics represent estimates based on sensor size and age.

Many modern cameras are not only capable of taking still images, but can also record movies. The G3 indeed provides for movie recording, while the 1Ds Mark III does not. The highest resolution format that the G3 can use is 1080/60i.

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Feature comparison

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 1Ds 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 1Ds Mark III has a higher magnification than the one of the G3 (0.76x vs 0.70x), 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 1Ds Mark III and Panasonic G3 in connection with corresponding information for a sample of similar cameras.

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Core Features
  empty Camera
Model
Viewfinder
(Type or
000 dots)
Control
Panel
(yes/no)
LCD
Specifications
(inch/000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Max
Shutter
Speed *
Max
Shutter
Flaps *
Built-in
Flash
(yes/no)
Built-in
Image
Stab
1.
 
Canon 1Ds Mark IIIoptical Y3.0 / 230 fixed n 1/8000s 5.0/s n n
2.
 
Panasonic G31440 n3.0 / 460 swivel Y 1/4000s 4.0/s Y n
3.
 
Canon 1D Mark IIIoptical Y3.0 / 230 fixed n 1/8000s 10.0/s n n
4.
 
Canon 1Dsoptical Y2.0 / 120 fixed n 1/8000s 3.0/s n n
5.
 
Canon 1Ds Mark IIoptical Y2.0 / 230 fixed n 1/8000s 4.0/s n n
6.
 
Canon 1D Coptical Y3.2 / 1040 fixed n 1/8000s 14.0/s n n
7.
 
Canon 1D Xoptical Y3.2 / 1040 fixed n 1/8000s 14.0/s n n
8.
 
Canon 1D X Mark IIoptical Y3.2 / 1620 fixed Y 1/8000s 16.0/s n n
9.
 
Canon 1D X Mark IIIoptical Y3.2 / 2100 fixed Y 1/8000s 20.0/s n n
10.
 
Canon 5D Mark IIoptical Y3.0 / 920 fixed n 1/8000s 3.9/s n n
11.
 
Canon 5D Mark IIIoptical Y3.2 / 1040 fixed n 1/8000s 6.0/s n n
12.
 
Nikon D3Xoptical Y3.0 / 922 fixed n 1/8000s 5.0/s n n
13.
 
Panasonic G21440 n3.0 / 460 swivel Y 1/4000s 2.6/s Y n
14.
 
Panasonic G51440 n3.0 / 920 swivel Y 1/4000s 6.0/s Y n
15.
 
Panasonic G61440 n3.0 / 1036 swivel Y 1/4000s 7.0/s Y n
16.
 
Panasonic GH21534 n3.0 / 460 swivel n 1/4000s 3.0/s Y n
17.
 
Panasonic GX1optional n3.0 / 460 fixed Y 1/4000s 4.2/s Y n
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One feature that is present on the 1Ds 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 1Ds Mark III does not have a selfie-screen.

The 1Ds Mark III writes its imaging data to Compact Flash or SDHC cards, while the G3 uses SDXC cards. The 1Ds 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.

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Connectivity comparison

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 Panasonic Lumix DMC-G3 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
  empty Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Canon 1Ds Mark IIIYmono / ----2.0---
2.
 
Panasonic G3Ystereo / mono--mini2.0---
3.
 
Canon 1D Mark IIIY- / ----2.0---
4.
 
Canon 1DsY- / ----FW---
5.
 
Canon 1Ds Mark IIY- / ----2.0---
6.
 
Canon 1D CYmono / monoYYmini2.0---
7.
 
Canon 1D XYmono / -Y-mini2.0---
8.
 
Canon 1D X Mark IIYmono / monoYYmini3.0---
9.
 
Canon 1D X Mark IIIYmono / monoYYmini3.1Y-Y
10.
 
Canon 5D Mark IIYmono / monoY-mini2.0---
11.
 
Canon 5D Mark IIIYmono / monoYYmini2.0---
12.
 
Nikon D3XY- / ---mini2.0---
13.
 
Panasonic G2Ystereo / mono--mini2.0---
14.
 
Panasonic G5Ystereo / mono--mini2.0---
15.
 
Panasonic G6Ystereo / monoY-mini2.0YY-
16.
 
Panasonic GH2Ystereo / monoY-mini2.0---
17.
 
Panasonic GX1Ystereo / mono--mini2.0---

Studio photographers will appreciate that the Canon 1Ds Mark III (unlike the G3) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the 1Ds Mark III and the G3 have been discontinued, but can regularly be found used on ebay. The 1Ds Mark III was replaced by the Canon 1DX, while the G3 was followed by the Panasonic G5. Further information on the features and operation of the 1Ds Mark III and G3 can be found, respectively, in the Canon 1Ds Mark III Manual (free pdf) or the online Panasonic G3 Manual.

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Review summary

So what is the bottom line? Is there a clear favorite between the Canon 1Ds Mark III and the Panasonic G3? Which camera is better? The listing below highlights the relative strengths of the two models.

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Reasons to prefer the Canon EOS-1Ds Mark III:

  • More detail: Offers more megapixels (21 vs 15.8MP) with a 18% higher linear resolution.
  • Better image quality: Scores substantially higher (24 points) in the DXO overall assessment.
  • Richer colors: Generates images with noticeably better colors (3 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 (1.3 stops ISO advantage).
  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.76x vs 0.70x).
  • 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 (5 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 (1800 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 August 2007).

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Advantages of the Panasonic Lumix DMC-G3:

  • Broader imaging potential: Can capture not only stills but also 1080/60i video.
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • 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 150x160mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 1049g or 76 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 (93 percent cheaper at launch).
  • More modern: Reflects 3 years and 8 months 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 (16 : 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 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.

1Ds Mark III 16:12 G3

How about other alternatives? Do the specifications of the Canon 1Ds 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 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 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.

Expert reviews

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.

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Expert Camera Reviews
  empty  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price
Street
Price
1.
 
Canon 1Ds Mark III......+ +4.5/5.. Aug 2007 US$ 7 999ebay.com
2.
 
Panasonic G33/5+ +..75/1004.5/55/5 May 2011 US$ 599ebay.com
3.
 
Canon 1D Mark III............ Feb 2007 US$ 4 499ebay.com
4.
 
Canon 1Ds......+ +.... Sep 2002 US$ 8 999ebay.com
5.
 
Canon 1Ds Mark II......+ +.... Sep 2004 US$ 7 999ebay.com
6.
 
Canon 1D C............ Apr 2012 US$ 14 999ebay.com
7.
 
Canon 1D X5/5......4.5/54.5/5 Oct 2011 US$ 6 799ebay.com
8.
 
Canon 1D X Mark II....4.5/589/1004.5/54.5/5 Feb 2016 US$ 5 999ebay.com
9.
 
Canon 1D X Mark III..+ +5/5..4.5/54/5 Jan 2020 US$ 6 499 amazon.com
10.
 
Canon 5D Mark II4/591/100..79/1004/5.. Sep 2008 US$ 3 499ebay.com
11.
 
Canon 5D Mark III..+ +..82/1004.5/54.5/5 Mar 2012 US$ 3 499ebay.com
12.
 
Nikon D3X......86/1004/55/5 Dec 2008 US$ 7 999ebay.com
13.
 
Panasonic G2......72/1004/54.5/5 Mar 2010 US$ 599ebay.com
14.
 
Panasonic G53/5+ +....4.5/54.5/5 Jul 2012 US$ 599ebay.com
15.
 
Panasonic G64/5+ +....5/54.5/5 Apr 2013 US$ 599ebay.com
16.
 
Panasonic GH25/5+ +..79/1004.5/55/5 Sep 2010 US$ 899ebay.com
17.
 
Panasonic GX13/5+..77/1004.5/54.5/5 Nov 2011 US$ 699ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The above review scores should be interpreted 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 comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

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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 use the search menu below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Canon 1Ds 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 Specifications
    Camera Model Canon 1Ds 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 August 2007 May 2011
    Launch Price USD 7,999 USD 599
    Sensor Specs Canon 1Ds Mark III Panasonic G3
    Sensor Technology CMOS CMOS
    Sensor Format Full Frame Sensor Four Thirds Sensor
    Sensor Size 36.0 x 24.0 mm 17.3 x 13.0 mm
    Sensor Area 864 mm2 224.9 mm2
    Sensor Diagonal 43.3 mm 21.6 mm
    Crop Factor 1.0x 2.0x
    Sensor Resolution 21 Megapixels 15.8 Megapixels
    Image Resolution 5616 x 3744 pixels 4592 x 3448 pixels
    Pixel Pitch 6.41 μm 3.77 μm
    Pixel Density 2.43 MP/cm2 7.04 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability no Video 1080/60i Video
    ISO Setting 100 - 1,600 ISO 160 - 6,400 ISO
    ISO Boost 50 - 3,200 ISO no Enhancement
    Image Processor DIGIC III (Dual) Venus FHD
    DXO Sensor Quality (score) 80 56
    DXO Color Depth (bits) 24.0 21.0
    DXO Dynamic Range (EV) 12.0 10.6
    DXO Low Light (ISO) 1663 667
    Screen Specs Canon 1Ds Mark III Panasonic G3
    Viewfinder Type Optical viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.76x 0.70x
    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
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Canon 1Ds Mark III Panasonic G3
    Focus System Phase-detect AF Contrast-detect AF
    Continuous Shooting 5 shutter flaps/s 4 shutter flaps/s
    Fill Flash no On-Board Flash Built-in Flash
    Storage Medium CF or SDHC cards SDXC cards
    Single or Dual Card Slots Dual card slots Single card slot
    UHS card support no no
    Connectivity Specs Canon 1Ds Mark III Panasonic G3
    External Flash Hotshoe Hotshoe
    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 Panasonic G3
    Environmental SealingWeathersealed bodynot weather sealed
    Battery Type Canon LP-E4 Panasonic DMW-BLD10
    Battery Life (CIPA)1800 shots per charge270 shots per charge
    Body Dimensions 150 x 160 x 80 mm
    (5.9 x 6.3 x 3.1 in)
    115 x 84 x 47 mm
    (4.5 x 3.3 x 1.9 in)
    Camera Weight 1385 g (48.9 oz) 336 g (11.9 oz)
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    Check G3 offers at
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