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Panasonic GH5s versus Canon 1D Mark III

The Panasonic Lumix DC-GH5s and the Canon EOS-1D Mark III are two digital cameras that were announced, respectively, in January 2018 and February 2007. The GH5s is a mirrorless interchangeable lens camera, while the 1D Mark III is a DSLR. The cameras are based on a Four Thirds (GH5s) and an APS-H (1D Mark III) sensor. The Panasonic has a resolution of 9.9 megapixel, whereas the Canon provides 10.1 MP. Read on to find out how these two cameras compare with respect to their size, their sensors, their features, and their reception by expert reviewers.

Body comparison: Panasonic GH5s vs Canon 1D Mark III

The side-by-side display below illustrates the physical size and weight of the Panasonic GH5s and the Canon 1D Mark III. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All size dimensions are rounded to the nearest millimeter. You can also toggle the display to switch to a percentage comparison if you prefer that the measures are being expressed in relative terms (in this case, the camera on the left side – the GH5s – represents the basis for the calculations across all the size and weight measures).

Compare Panasonic GH5s vs Canon 1D Mark III
Compare GH5s versus 1D Mark III top
Compare GH5s and 1D Mark III rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Canon 1D Mark III is considerably larger (79 percent) than the Panasonic GH5s. Moreover, the 1D Mark III is substantially heavier (75 percent) than the GH5s. In this context, it is worth noting that both cameras are splash and dust-proof and can, hence, be used in inclement weather conditions or harsh environments.

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 find an overview of optics for the two cameras in the Micro Four Thirds Lens Catalog (GH5s) and the Canon EF Lens Catalog (1D Mark III). Mirrorless cameras, such as the Panasonic GH5s, have moreover the advantage that they have a relatively short flange to focal plane distance and can thus use many lenses from other systems via adapters.

Concerning battery life, the GH5s gets 440 shots out of its DMW-BLF19 battery, while the 1D Mark III can take 2200 images on a single charge of its LP-E4 power pack.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. If you want to switch the focus of the display and review another camera pair, just select a new right or left comparator from among the camera models in the table. Alternatively, you can also move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.

Camera Body Specifications
  Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
(CIPA)
Weather
Sealing
(yes/no)
Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
Panasonic GH5s» 5.5 in 3.9 in 3.4 in 23.3 oz 440 Y Jan 2018 2,499 i i Panasonic GH5s
Canon 1D Mark III« 6.1 in 6.2 in 3.1 in 40.7 oz 2200 Y Feb 2007 4,499- i Canon 1D Mark III
Canon 1D Mark IV« » 6.1 in 6.2 in 3.1 in 43.4 oz 1500 Y Oct 2009 4,999- i Canon 1D Mark IV
Canon 1Ds Mark III« » 5.9 in 6.3 in 3.1 in 48.9 oz 1800 Y Aug 2007 7,999- i Canon 1Ds Mark III
Canon 1D Mark II« » 6.1 in 6.2 in 3.1 in 54.1 oz 1200 Y Jan 2004 4,499- i Canon 1D Mark II
Canon 1Ds« » 6.1 in 6.2 in 3.1 in 44.6 oz 600 Y Sep 2002 8,999- i Canon 1Ds
Nikon D3« » 6.3 in 6.2 in 3.5 in 45.9 oz 4300 Y Aug 2007 4,999- i Nikon D3
Olympus E-M1 II« » 5.3 in 3.6 in 2.6 in 20.2 oz 440 Y Sep 2016 1,999 i i Olympus E-M1 II
Panasonic G9« » 5.4 in 3.8 in 3.6 in 23.2 oz 400 Y Nov 2017 1,699 i i Panasonic G9
Panasonic GH5« » 5.5 in 3.9 in 3.4 in 25.6 oz 410 Y Jan 2017 1,999 i i Panasonic GH5
Panasonic G85« » 5.0 in 3.5 in 2.9 in 17.8 oz 330 Y Sep 2016 899 i i Panasonic G85
Panasonic GX8« » 5.2 in 3.1 in 2.5 in 17.2 oz 330 Y Jul 2015 1,199- i Panasonic GX8
Panasonic FZ300« » 5.2 in 3.6 in 4.6 in 24.4 oz 380 Y Jul 2015 599 i i Panasonic FZ300
Panasonic GH4« » 5.2 in 3.7 in 3.3 in 19.8 oz 500 Y Feb 2014 1,499- i Panasonic GH4
Panasonic GH3« » 5.2 in 3.7 in 3.2 in 19.4 oz 540 Y Sep 2012 1,299- i Panasonic GH3
Sony A9« » 5.0 in 3.8 in 2.5 in 23.7 oz 650 Y Apr 2017 4,499 i i Sony A9
Sony A7S II« » 5.0 in 3.8 in 2.4 in 22.1 oz 370 Y Sep 2015 2,999 i i Sony A7S II

The price is, of course, an important factor in any camera decision. The manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The GH5s was launched at a markedly lower price (by 44 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.

 

Sensor comparison: Panasonic GH5s vs Canon 1D Mark III

The size of the imaging sensor is a crucial determinant of image quality. A large sensor will generally have larger individual pixels that offer better low-light sensitivity, provide wider dynamic range, and have richer color-depth than smaller pixels in a sensor of the same technological generation. Furthermore, a large sensor camera will give the photographer more possibilities to use shallow depth-of-field in order to isolate a subject from the background. On the downside, larger sensors tend to be associated with larger, more expensive camera bodies and lenses.

Of the two cameras under consideration, the Panasonic GH5s features a Four Thirds sensor and the Canon 1D Mark III an APS-H sensor. The sensor area in the 1D Mark III is 133 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.0 and 1.3. The sensor in the GH5s has a native 4:3 aspect ratio, while the one in the 1D Mark III offers a 3:2 aspect.

Panasonic GH5s and Canon 1D Mark III sensor measures

With 10.1MP, the 1D Mark III offers a higher resolution than the GH5s (9.9MP), but the 1D Mark III nevertheless has larger individual pixels (pixel pitch of 7.21μm versus 4.77μm for the GH5s) due to its larger sensor. However, the GH5s is a much more recent model (by 10 years and 10 months) than the 1D Mark III, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that the GH5s has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

GH5s versus 1D Mark III MP

Consistent information on actual sensor performance is available from DXO Mark for many cameras. This service determines an overall sensor rating, as well as sub-scores for low-light sensitivity ("DXO Sports"), dynamic range ("DXO Landscape"), and color depth ("DXO Portrait"). The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.

Sensor Characteristics
  Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Camera
Model
Panasonic GH5s» Four Thirds 9.9 3680 27004K/60p----Panasonic GH5s
Canon 1D Mark III« APS-H 10.1 3888 2592-22.711.7107871Canon 1D Mark III
Canon 1D Mark IV« » APS-H 16.0 4896 32641080/30p22.812.0132074Canon 1D Mark IV
Canon 1Ds Mark III« » Full Frame 21.0 5616 3744-24.012.0166380Canon 1Ds Mark III
Canon 1D Mark II« » APS-H 8.2 3504 2336-22.311.1100366Canon 1D Mark II
Canon 1Ds« » Full Frame 11.0 4064 2704-21.811.095463Canon 1Ds
Nikon D3« » Full Frame 12.1 4256 2832-23.512.2229081Nikon D3
Olympus E-M1 II« » Four Thirds 20.2 5184 38884K/30p23.712.8131280Olympus E-M1 II
Panasonic G9« » Four Thirds 20.2 5184 38884K/60p----Panasonic G9
Panasonic GH5« » Four Thirds 20.2 5184 38884K/60p23.913.080777Panasonic GH5
Panasonic G85« » Four Thirds 15.8 4592 34484K/30p22.812.565671Panasonic G85
Panasonic GX8« » Four Thirds 20.2 5184 38884K/30p23.512.680675Panasonic GX8
Panasonic FZ300« » 1/2.3 12.0 4000 30004K/30p19.311.09738Panasonic FZ300
Panasonic GH4« » Four Thirds 15.9 4608 34564K/30p23.212.879174Panasonic GH4
Panasonic GH3« » Four Thirds 15.9 4608 34561080/60p22.712.481271Panasonic GH3
Sony A9« » Full Frame 24.0 6000 40004K/30p24.913.3351792Sony A9
Sony A7S II« » Full Frame 12.0 4240 28324K/30p23.613.3299385Sony A7S II

Many modern cameras cannot only take still pictures, but also record videos. The GH5s indeed provides movie recording capabilities, while the 1D Mark III does not. The highest resolution format that the GH5s can use is 4K/60p.

 

Feature comparison: Panasonic GH5s vs Canon 1D Mark III

Apart from body and sensor, cameras can and do differ across a variety of features. For example, the GH5s has an electronic viewfinder (3680k 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 adjacent table lists some of the other core features of the Panasonic GH5s and Canon 1D Mark III along with similar information for a selection of comparators. If needed, the dpreview camera hub, for example, contains further detail on the cameras' specs.

Core Features
  Camera
Model
Viewfinder
(Type or
'000 dots)
Control
Panel
(yes/no)
LCD
Size
(inch)
LCD
Resolution
('000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Shutter
speed
(1/sec)
Shutter
flaps
(1/sec))
Build-in
Flash
(yes/no)
Build-in
Image
Stab
Camera
Model
Panasonic GH5s»3680 n 3.2 1620 swivel Y 8000 12.0 n n Panasonic GH5s
Canon 1D Mark III«optical Y 3.0 230 fixed n 8000 10.0 n n Canon 1D Mark III
Canon 1D Mark IV« »optical Y 3.0 920 fixed n 8000 10.0 n n Canon 1D Mark IV
Canon 1Ds Mark III« »optical Y 3.0 230 fixed n 8000 5.0 n n Canon 1Ds Mark III
Canon 1D Mark II« »optical Y 2.0 230 fixed n 8000 8.3 n n Canon 1D Mark II
Canon 1Ds« »optical Y 2.0 120 fixed n 8000 3.0 n n Canon 1Ds
Nikon D3« »optical Y 3.0 922 fixed n 8000 11.0 n n Nikon D3
Olympus E-M1 II« »2360 n 3.0 1037 swivel Y 8000 18.0 n Y Olympus E-M1 II
Panasonic G9« »3680 Y 3.0 1040 swivel Y 8000 20.0 n Y Panasonic G9
Panasonic GH5« »3680 n 3.2 1620 swivel Y 8000 12.0 n Y Panasonic GH5
Panasonic G85« »2360 n 3.0 1040 swivel Y 4000 9.0 Y Y Panasonic G85
Panasonic GX8« »2360 n 3.0 1040 swivel Y 8000 10.0 n Y Panasonic GX8
Panasonic FZ300« »1440 n 3.0 1040 swivel Y 4000 12.0 Y Y Panasonic FZ300
Panasonic GH4« »2359 n 3.0 1036 swivel Y 8000 12.0 Y n Panasonic GH4
Panasonic GH3« »1746 n 3.0 614 swivel Y 4000 6.0 Y n Panasonic GH3
Sony A9« »3686 n 3.0 1440 tilting Y 8000 20.0 n Y Sony A9
Sony A7S II« »2400 n 3.0 1229 tilting n 8000 5.0 n Y Sony A7S II

The reported shutter speed and shutter burst refer to the use of the mechanical shutter. In addition, the GH5s features an electronic shutter, which makes silent shooting and higher burst speeds possible. However, this mode is less suitable for photographing moving objects (rolling shutter) or shooting under artificial light sources (flickering).

The GH5s is a current model that online retailers, such as amazon, will have in stock. In contrast, the 1D Mark III has been discontinued (but it can be found pre-owned on eBay). As a replacement in the same line of cameras, the 1D Mark III was succeeded by the Canon 1D Mark IV.

Review summary: Panasonic GH5s vs Canon 1D Mark III

So how do things add up? Which of the two cameras – the Panasonic GH5s or the Canon 1D Mark III – has the upper hand? A synthesis of the relative strong points of each of the models is listed below.

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Arguments in favor of the Panasonic Lumix DC-GH5s:

  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Broader imaging potential: Can record not only still images but also 4K/60p movies.
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • Larger screen: Has a bigger rear LCD (3.2" vs 3.0") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (1620k vs 230k dots).
  • More flexible LCD: Has swivel screen for odd-angle shots in portrait or landscape orientation.
  • Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
  • Faster burst: Shoots at higher frequency (12 vs 10 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • More compact: Is smaller (139x98mm vs 156x156.6mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 495g or 43 percent) and hence easier to carry around.
  • More legacy lens friendly: Can take a broad range of non-native lenses via adapters.
  • More affordable: Was introduced into a lower priced category (44 percent cheaper at launch).
  • More modern: Reflects 10 years and 10 months of technical progress since the 1D Mark III launch.

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Advantages of the Canon EOS-1D Mark III:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • Easier setting verification: Has a control panel on top to check shooting parameters.
  • Longer lasting: Gets more shots (2200 versus 440) out of a single battery charge.
  • More heavily discounted: Has been around for much longer (launched in February 2007).

If the count of individual advantages (bullet points above) is taken as a guide, the GH5s is the clear winner of the match-up (14 : 5 points). However, the relative importance of the various individual camera aspects will vary according to personal preferences and needs, so that you might like to apply corresponding weights to the particular features before making a decision on a new camera.

GH5s 14:05 1D Mark III

In any case, while the specs-based evaluation of cameras is instructive in revealing their potential as photographic tools, it says nothing about, for example, the handling, responsiveness, and overall imaging quality of the GH5s and the 1D Mark III in practical situations. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased. This is why expert reviews are important. The table below summarizes the assessments of some of the best known camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, photographyblog). The detailed reviews can be accessed by clicking on the site logo in the table header.

Review Scores
  Camera
Model
cameralabs dpreview ephotozine imaging-resource photographyblog Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
Panasonic GH5s»-84/1004.5/5-4.5/5 Jan 2018 2,499 i i Panasonic GH5s
Canon 1D Mark III«---rev- Feb 2007 4,499- i Canon 1D Mark III
Canon 1D Mark IV« »-89/100-5/5- Oct 2009 4,999- i Canon 1D Mark IV
Canon 1Ds Mark III« »-HiRec4.5/5-- Aug 2007 7,999- i Canon 1Ds Mark III
Canon 1D Mark II« »-HiRec-rev- Jan 2004 4,499- i Canon 1D Mark II
Canon 1Ds« »-HiRec--- Sep 2002 8,999- i Canon 1Ds
Nikon D3« »-HiRec5/5rev4.5/5 Aug 2007 4,999- i Nikon D3
Olympus E-M1 II« »HiRec85/1004.5/55/54.5/5 Sep 2016 1,999 i i Olympus E-M1 II
Panasonic G9« »HiRec85/1005/5-5/5 Nov 2017 1,699 i i Panasonic G9
Panasonic GH5« »HiRec85/1004.5/55/55/5 Jan 2017 1,999 i i Panasonic GH5
Panasonic G85« »HiRec84/1005/54.5/54.5/5 Sep 2016 899 i i Panasonic G85
Panasonic GX8« »Rec82/1004.5/55/54.5/5 Jul 2015 1,199- i Panasonic GX8
Panasonic FZ300« »HiRec-4.5/54.5/54.5/5 Jul 2015 599 i i Panasonic FZ300
Panasonic GH4« »HiRec85/1005/55/55/5 Feb 2014 1,499- i Panasonic GH4
Panasonic GH3« »HiRec79/1004.5/55/54.5/5 Sep 2012 1,299- i Panasonic GH3
Sony A9« »HiRec89/1005/55/55/5 Apr 2017 4,499 i i Sony A9
Sony A7S II« »Rec-4.5/55/55/5 Sep 2015 2,999 i i Sony A7S II

The review scores listed above should be treated with care, though. The ratings are only valid when refering to cameras in the same category and of the same age. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and comparisons of ratings among very different cameras or across long time periods have little meaning. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

 

Other camera comparisons

Did this review help to inform your camera decision process? In case you are interested in seeing how other cameras pair up, just make your choice using the following search menu. An an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool. If you cannot find the camera you are interested in, please contact me, and I will try to locate and add the respective data to the application.

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