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Canon 1D Mark III vs Panasonic GX800

The Canon EOS-1D Mark III and the Panasonic Lumix DMC-GX800 (labelled Panasonic GX850 in some countries) are two digital cameras that were revealed to the public, respectively, in February 2007 and January 2017. The 1D Mark III is a DSLR, while the GX800 is a mirrorless interchangeable lens camera. The cameras are based on an APS-H (1D Mark III) and a Four Thirds (GX800) 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.

Headline Specifications
Canon 1D Mark III
versus
Panasonic GX800
Canon 1D Mark III   Panasonic GX800
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 4K/30p Video
ISO 100-3,200 (50 - 6,400) ISO 200-25,600
Optical viewfinder No viewfinder, LCD framing
3.0" LCD – 230k dots 3.0" LCD – 1040k dots
Fixed screen (not touch-sensitive) Tilting touchscreen
10 shutter flaps per second 10 shutter flaps per second
Weathersealed bodynot weather sealed
2200 shots per battery charge210 shots per battery charge
156 x 157 x 80 mm, 1155 g 107 x 65 x 33 mm, 269 g
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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-GX800? 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 physical size and weight of the Canon 1D Mark III and the Panasonic GX800 are illustrated in the side-by-side display below. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All width, height and depth measures are rounded to the nearest millimeter.

The GX800 can be obtained in three different colors (black, silver, red), while the 1D Mark III is only available in black.

Size Canon 1D Mark III vs Panasonic GX800
Compare 1D Mark III versus GX800 top
Comparison 1D Mark III or GX800 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Panasonic GX800 is considerably smaller (72 percent) than the Canon 1D Mark III. Moreover, the GX800 is substantially lighter (77 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 GX800 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 (GX800). Mirrorless cameras, such as the GX800, 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 Canon LP-E4 battery, while the GX800 can take 210 images on a single charge of its Panasonic DMW-BLH7 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 would like to visualize and compare a different camera combination, you can navigate to the CAM-parator app and make your selection from a broad list of cameras there.

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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 1D Mark III 156 mm 157 mm 80 mm 1155 g 2200 Y Feb 2007 US$ 4 499ebay.com
2.
 
Panasonic GX800 107 mm 65 mm 33 mm 269 g 210 n Jan 2017 US$ 549ebay.com
3.
 
Canon 1D Mark II 156 mm 158 mm 80 mm 1535 g 1200 Y Jan 2004 US$ 4 499ebay.com
4.
 
Canon 1D Mark II N 156 mm 158 mm 80 mm 1565 g 1200 Y Aug 2005 US$ 3 999ebay.com
5.
 
Canon 1D Mark IV 156 mm 157 mm 80 mm 1230 g 1500 Y Oct 2009 US$ 4 999ebay.com
6.
 
Canon 1Ds 156 mm 158 mm 80 mm 1265 g 600 Y Sep 2002 US$ 8 999ebay.com
7.
 
Canon 1Ds Mark III 150 mm 160 mm 80 mm 1385 g 1800 Y Aug 2007 US$ 7 999ebay.com
8.
 
Canon 5D Mark II 152 mm 114 mm 75 mm 850 g 850 Y Sep 2008 US$ 3 499ebay.com
9.
 
Canon 5D Mark III 152 mm 116 mm 76 mm 950 g 950 Y Mar 2012 US$ 3 499ebay.com
10.
 
Canon 5DS R 152 mm 116 mm 76 mm 930 g 700 Y Feb 2015 US$ 3 699ebay.com
11.
 
Nikon D2Xs 158 mm 150 mm 86 mm 1252 g 3800 Y Jun 2006 US$ 4 699ebay.com
12.
 
Nikon D3 160 mm 157 mm 88 mm 1300 g 4300 Y Aug 2007 US$ 4 999ebay.com
13.
 
Panasonic G5 120 mm 83 mm 71 mm 396 g 320 n Jul 2012 US$ 599ebay.com
14.
 
Panasonic G6 122 mm 85 mm 71 mm 390 g 340 n Apr 2013 US$ 599ebay.com
15.
 
Panasonic GF5 108 mm 67 mm 37 mm 267 g 360 n Apr 2012 US$ 499ebay.com
16.
 
Panasonic GF6 111 mm 65 mm 38 mm 323 g 340 n Apr 2013 US$ 499ebay.com
17.
 
Panasonic GF7 107 mm 65 mm 33 mm 266 g 230 n Jan 2015 US$ 499ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.

The price is, of course, an important factor in any camera decision. The retail prices at the time of the camera’s release place the model in the market relative to other models in the producer’s line-up and the competition. The GX800 was launched at a markedly lower price (by 88 percent) than the 1D Mark III, which puts it into a different market segment. Normally, street prices remain initially close to the MSRP, but after a couple of months, the first discounts appear. Later in the product cycle and, in particular, when the replacement model is about to appear, further discounting and stock clearance sales often push the camera price considerably down.

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. Furthermore, a large sensor camera will give the photographer more possibilities to use shallow depth-of-field in order to isolate a subject from the background. On the downside, larger sensors tend to be more expensive and lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Canon 1D Mark III features an APS-H sensor and the Panasonic GX800 a Four Thirds sensor. The sensor area in the GX800 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 GX800 offers a 4:3 aspect.

Canon 1D Mark III and Panasonic GX800 sensor measures

Despite having a smaller sensor, the GX800 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 GX800 is much more recent (by 9 years and 10 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. Coming back to sensor resolution, it should be mentioned that the GX800 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Panasonic GX800 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the GX800 for good quality output (200 dots per inch) amounts to 23 x 17.2 inches or 58.3 x 43.8 cm, for very good quality (250 dpi) 18.4 x 13.8 inches or 46.7 x 35 cm, and for excellent quality (300 dpi) 15.3 x 11.5 inches or 38.9 x 29.2 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-GX800 are ISO 200 to ISO 25600, with the possibility to increase the ISO range to 100-25600.

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.

1D Mark III versus GX800 MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. This service assesses and scores the color depth ("DXO Portrait"), dynamic range ("DXO Landscape"), and low-light sensitivity ("DXO Sports") of camera sensors, and also publishes an overall camera score. The Overall DXO ratings for the two cameras under consideration are close, suggesting that they provide similar imaging performance. The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.

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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 1D Mark III APS-H 10.1 3888 2592none22.711.7107871
2.
 
Panasonic GX800 Four Thirds 15.8 4592 34484K/30p23.213.358673
3.
 
Canon 1D Mark II APS-H 8.2 3504 2336none22.311.1100366
4.
 
Canon 1D Mark II N APS-H 8.2 3504 2336none22.311.297566
5.
 
Canon 1D Mark IV APS-H 16.0 4896 32641080/30p22.812.0132074
6.
 
Canon 1Ds Full Frame 11.0 4064 2704none21.811.095463
7.
 
Canon 1Ds Mark III Full Frame 21.0 5616 3744none24.012.0166380
8.
 
Canon 5D Mark II Full Frame 21.0 5616 37441080/30p23.711.9181579
9.
 
Canon 5D Mark III Full Frame 22.1 5760 38401080/30p24.011.7229381
10.
 
Canon 5DS R Full Frame 50.3 8688 57921080/30p24.612.4230886
11.
 
Nikon D2Xs APS-C 12.2 4288 2848none22.210.948959
12.
 
Nikon D3 Full Frame 12.1 4256 2832none23.512.2229081
13.
 
Panasonic G5 Four Thirds 15.9 4608 34561080/60p21.411.661861
14.
 
Panasonic G6 Four Thirds 15.9 4608 34561080/60p21.311.563961
15.
 
Panasonic GF5 Four Thirds 12.0 4000 30001080/60i20.510.057350
16.
 
Panasonic GF6 Four Thirds 15.8 4592 34481080/60i20.710.662254
17.
 
Panasonic GF7 Four Thirds 15.8 4592 34481080/60p22.712.387470
Note: DXO values in italics represent estimates based on sensor size and age.

Many modern cameras cannot only take still pictures, but also record videos. The GX800 indeed provides for movie recording, while the 1D Mark III does not. The highest resolution format that the GX800 can use is 4K/30p.

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Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. For example, the 1D Mark III has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the GX800 relies on live view and the rear LCD for framing. The table below summarizes some of the other core capabilities of the Canon 1D Mark III and Panasonic GX800 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 1D Mark IIIoptical Y3.0 / 230 fixed n 1/8000s 10.0/s n n
2.
 
Panasonic GX800none n3.0 / 1040 tilting Y 1/500s 10.0/s Y n
3.
 
Canon 1D Mark IIoptical Y2.0 / 230 fixed n 1/8000s 8.3/s n n
4.
 
Canon 1D Mark II Noptical Y2.5 / 230 fixed n 1/8000s 8.5/s n n
5.
 
Canon 1D Mark IVoptical Y3.0 / 920 fixed n 1/8000s 10.0/s n n
6.
 
Canon 1Dsoptical Y2.0 / 120 fixed n 1/8000s 3.0/s n n
7.
 
Canon 1Ds Mark IIIoptical Y3.0 / 230 fixed n 1/8000s 5.0/s n n
8.
 
Canon 5D Mark IIoptical Y3.0 / 920 fixed n 1/8000s 3.9/s n n
9.
 
Canon 5D Mark IIIoptical Y3.2 / 1040 fixed n 1/8000s 6.0/s n n
10.
 
Canon 5DS Roptical Y3.2 / 1040 fixed n 1/8000s 5.0/s n n
11.
 
Nikon D2Xsoptical Y2.5 / 230 fixed n 1/8000s 5.0/s n n
12.
 
Nikon D3optical Y3.0 / 922 fixed n 1/8000s 11.0/s n n
13.
 
Panasonic G51440 n3.0 / 920 swivel Y 1/4000s 6.0/s Y n
14.
 
Panasonic G61440 n3.0 / 1036 swivel Y 1/4000s 7.0/s Y n
15.
 
Panasonic GF5none n3.0 / 920 fixed Y 1/4000s 4.0/s Y n
16.
 
Panasonic GF6none n3.0 / 1040 tilting Y 1/4000s 4.2/s Y n
17.
 
Panasonic GF7none n3.0 / 1040 tilting Y 1/500s 5.8/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 1D Mark III, but is missing on the GX800 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 GX800 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 reported shutter speed information refers to the use of the mechanical shutter. Yet, some cameras only have an electronic shutter, while others have an electronic shutter in addition to a mechanical one. In fact, the GX800 is one of those camera that have an additional electronic shutter, which makes completely silent shooting possible. However, this mode is less suitable for photographing moving objects (risk of rolling shutter) or shooting under artificial light sources (risk of flickering).

The Panasonic GX800 has an intervalometer built-in. This enables the photographer to capture time lapse sequences, such as flower blooming, a sunset or moon rise, without purchasing an external camera trigger and related software.

The 1D Mark III writes its imaging data to Compact Flash or SDHC cards, while the GX800 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 GX800 only has one slot. The GX800 supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the 1D Mark III cannot take advantage of Ultra High Speed SD cards.

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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-1D Mark III and Panasonic Lumix DMC-GX800 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 1D Mark IIIY- / ----2.0---
2.
 
Panasonic GX800-stereo / mono--micro2.0Y--
3.
 
Canon 1D Mark IIY- / ----1.1---
4.
 
Canon 1D Mark II NY- / ----1.1---
5.
 
Canon 1D Mark IVYstereo / -Y-mini2.0---
6.
 
Canon 1DsY- / ----FW---
7.
 
Canon 1Ds Mark IIIYmono / ----2.0---
8.
 
Canon 5D Mark IIYmono / monoY-mini2.0---
9.
 
Canon 5D Mark IIIYmono / monoYYmini2.0---
10.
 
Canon 5DS RYmono / monoY-mini3.0---
11.
 
Nikon D2XsY- / ----2.0---
12.
 
Nikon D3Y- / ---mini2.0---
13.
 
Panasonic G5Ystereo / mono--mini2.0---
14.
 
Panasonic G6Ystereo / monoY-mini2.0YY-
15.
 
Panasonic GF5-stereo / mono--mini2.0---
16.
 
Panasonic GF6-stereo / mono--mini2.0YY-
17.
 
Panasonic GF7-stereo / mono--micro2.0YY-

It is notable that the 1D Mark III has a hotshoe, while the GX800 does not. This socket makes it possible to easily attach optional accessories, such as an external flash gun.

Studio photographers will appreciate that the Canon 1D Mark III (unlike the GX800) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the 1D Mark III and the GX800 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 GX800 does not have a direct successor. Further information on the features and operation of the 1D Mark III and GX800 can be found, respectively, in the Canon 1D Mark III Manual (free pdf) or the online Panasonic GX800 Manual.

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Review summary

So what conclusions can be drawn? Is the Canon 1D Mark III better than the Panasonic GX800 or vice versa? The listing below highlights the relative strengths of the two models.

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

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Better low-light sensitivity: Requires less light for good images (0.9 stops ISO advantage).
  • Easier framing: Has an optical viewfinder for image composition and settings control.
  • Easier setting verification: Features an LCD display on top to control shooting parameters.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/500s) to freeze action.
  • More portrait friendly: Features an integrated vertical grip for easier portrait shooting.
  • Longer lasting: Can take more shots (2200 versus 210) on a single battery charge.
  • Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
  • Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
  • 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).

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Advantages of the Panasonic Lumix DMC-GX800:

  • More detail: Has more megapixels (15.8 vs 10.1MP), which boosts linear resolution by 23%.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • More dynamic range: Captures a broader range of light and dark details (1.6 EV of extra DR).
  • Broader imaging potential: Can capture not only stills but also 4K/30p video.
  • More detailed LCD: Has a higher resolution rear screen (1040k vs 230k dots).
  • More flexible LCD: Has a tilting screen for odd-angle shots in 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.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • More compact: Is smaller (107x65mm vs 156x157mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 886g or 77 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.
  • Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
  • Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
  • More affordable: Was introduced into a lower priced category (88 percent cheaper at launch).
  • More modern: Reflects 9 years and 10 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 GX800 is the clear winner of the contest (18 : 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.

1D Mark III 12:18 GX800

How about other alternatives? Do the specifications of the Canon 1D Mark III and the Panasonic GX800 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 remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the 1D Mark III or the GX800. At times, user reviews, such as those published at amazon, address these issues in a useful manner, but such feedback is on many occasions incomplete, inconsistent, and unreliable.

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 1D Mark III............ Feb 2007 US$ 4 499ebay.com
2.
 
Panasonic GX800..+..76/1004.5/54.5/5 Jan 2017 US$ 549ebay.com
3.
 
Canon 1D Mark II......+ +.... Jan 2004 US$ 4 499ebay.com
4.
 
Canon 1D Mark II N............ Aug 2005 US$ 3 999ebay.com
5.
 
Canon 1D Mark IV5/5....89/100.... Oct 2009 US$ 4 999ebay.com
6.
 
Canon 1Ds......+ +.... Sep 2002 US$ 8 999ebay.com
7.
 
Canon 1Ds Mark III......+ +4.5/5.. Aug 2007 US$ 7 999ebay.com
8.
 
Canon 5D Mark II4/591/100..79/1004/5.. Sep 2008 US$ 3 499ebay.com
9.
 
Canon 5D Mark III..+ +..82/1004.5/54.5/5 Mar 2012 US$ 3 499ebay.com
10.
 
Canon 5DS R5/5+..83/1005/54.5/5 Feb 2015 US$ 3 699ebay.com
11.
 
Nikon D2Xs............ Jun 2006 US$ 4 699ebay.com
12.
 
Nikon D3......+ +5/54.5/5 Aug 2007 US$ 4 999ebay.com
13.
 
Panasonic G53/5+ +....4.5/54.5/5 Jul 2012 US$ 599ebay.com
14.
 
Panasonic G64/5+ +....5/54.5/5 Apr 2013 US$ 599ebay.com
15.
 
Panasonic GF53/5......4.5/54.5/5 Apr 2012 US$ 499ebay.com
16.
 
Panasonic GF6..+ +....4.5/54.5/5 Apr 2013 US$ 499ebay.com
17.
 
Panasonic GF74/5+....4.5/54.5/5 Jan 2015 US$ 499ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

Care should be taken when interpreting the review scores above, though. The ratings are only valid when referring to cameras in the same category and of the same age. Hence, a score should always be seen in the context of the camera's market launch date and its price, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

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Check 1D Mark III offers at
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Check GX800 offers at
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Other camera comparisons

Did this review help to inform your camera decision process? If you would like to see a different side-by-side camera review, just make a corresponding selection in the search boxes below. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.

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    Specifications: Canon 1D Mark III vs Panasonic GX800

    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 1D Mark III Panasonic GX800
    Camera Type Digital single lens reflex Mirrorless system camera
    Camera Lens Canon EF mount lenses Micro Four Thirds lenses
    Launch Date February 2007 January 2017
    Launch Price USD 4,499 USD 549
    Sensor Specs Canon 1D Mark III Panasonic GX800
    Sensor Technology CMOS CMOS
    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
    Crop Factor 1.3x 2.0x
    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 no AA filter
    Movie Capability no Video 4K/30p Video
    ISO Setting 100 - 3,200 ISO 200 - 25,600 ISO
    ISO Boost 50 - 6,400 ISO 100 - 25,600 ISO
    Image Processor DIGIC III Venus
    DXO Sensor Quality (score) 71 73
    DXO Color Depth (bits) 22.7 23.2
    DXO Dynamic Range (EV) 11.7 13.3
    DXO Low Light (ISO) 1078 586
    Screen Specs Canon 1D Mark III Panasonic GX800
    Viewfinder Type Optical viewfinder no viewfinder
    Viewfinder Field of View 100%
    Viewfinder Magnification 0.58x
    Top-Level Screen Control Panel no Top Display
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 230k dots 1040k dots
    LCD Attachment Fixed screen Tilting screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Canon 1D Mark III Panasonic GX800
    Focus System Phase-detect AF Contrast-detect AF
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/8000s 1/500s
    Continuous Shooting 10 shutter flaps/s 10 shutter flaps/s
    Electronic Shutterno E-Shutterup to 1/16000s
    Time-Lapse Photographyno IntervalometerIntervalometer built-in
    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 UHS-I
    Connectivity Specs Canon 1D Mark III Panasonic GX800
    External Flash Hotshoe no Hotshoe
    Studio Flash PC Sync socket no PC Sync
    USB Connector USB 2.0 USB 2.0
    HDMI Port no HDMI micro HDMI
    Wifi Support no Wifi Wifi built-in
    Body Specs Canon 1D Mark III Panasonic GX800
    Environmental SealingWeathersealed bodynot weather sealed
    Battery Type Canon LP-E4 Panasonic DMW-BLH7
    Battery Life (CIPA)2200 shots per charge210 shots per charge
    Body Dimensions 156 x 157 x 80 mm
    (6.1 x 6.2 x 3.1 in)
    107 x 65 x 33 mm
    (4.2 x 2.6 x 1.3 in)
    Camera Weight 1155 g (40.7 oz) 269 g (9.5 oz)
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