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Canon 5D Mark III vs G5X

The Canon EOS 5D Mark III and the Canon PowerShot G5 X are two digital cameras that were announced, respectively, in March 2012 and October 2015. The 5D Mark III is a DSLR, while the G5X is a fixed lens compact. The cameras are based on a full frame (5D Mark III) and an one-inch (G5X) sensor. The 5D Mark III has a resolution of 22.1 megapixels, whereas the G5X provides 20 MP.

Below is an overview of the main specs of the two cameras as a starting point for the comparison.

Headline Specifications
Canon 5D Mark III
versus
Canon G5 X
Canon 5D Mark III   Canon G5 X
Digital single lens reflex Fixed lens compact camera
Canon EF mount lenses 24-100mm f/1.8-2.8
22.1 MP – Full Frame sensor 20 MP – 1" sensor
1080/30p Video 1080/60p Video
ISO 100-25,600 (50 - 102,400) ISO 125-12,800 (125 - 25,600)
Optical viewfinder Electronic viewfinder (2360k dots)
3.2" LCD – 1040k dots 3.0" LCD – 1040k dots
Fixed screen (not touch-sensitive) Swivel touchscreen
6 shutter flaps per second 5.9 shutter flaps per second
Weathersealed bodynot weather sealed
950 shots per battery charge210 shots per battery charge
152 x 116 x 76 mm, 950 g 112 x 76 x 44 mm, 353 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS 5D Mark III and the Canon PowerShot G5 X? 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

An illustration of the physical size and weight of the Canon 5D Mark III and the Canon G5 X is provided in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All width, height and depth measures are rounded to the nearest millimeter.

Size Canon 5D Mark III vs Canon G5 X
Compare 5D Mark III versus G5X top
Comparison 5D Mark III or G5X rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Canon G5 X is considerably smaller (52 percent) than the Canon 5D Mark III. It is worth mentioning in this context that the 5D Mark III is splash and dust resistant, while the G5X does not feature any corresponding weather-sealing.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the G5X has a lens built in, whereas the 5D 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 5D Mark III and their specifications in the Canon EF Lens Catalog.

Concerning battery life, the 5D Mark III gets 950 shots out of its Canon LP-E6 battery, while the G5X can take 210 images on a single charge of its Canon NB-13L power pack. The power pack in the G5X can be charged via the USB port, which can be very convenient when travelling.

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
# image Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Canon 5D Mark III 152 mm 116 mm 76 mm 950 g 950 Y Mar 2012 3,499ebay.com
2.
 
Canon G5 X 112 mm 76 mm 44 mm 353 g 210 n Oct 2015 799ebay.com
3.
 
Canon 5D Mark IV 151 mm 116 mm 76 mm 890 g 900 Y Aug 2016 3,499 amazon.com
4.
 
Canon G7 X Mark II 106 mm 61 mm 42 mm 319 g 265 n Feb 2016 699ebay.com
5.
 
Canon 5DS 152 mm 116 mm 76 mm 930 g 700 Y Feb 2015 3,699ebay.com
6.
 
Canon 5DS R 152 mm 116 mm 76 mm 930 g 700 Y Feb 2015 3,699ebay.com
7.
 
Canon G9 X 98 mm 58 mm 31 mm 209 g 220 n Oct 2015 529ebay.com
8.
 
Canon G7 X 103 mm 60 mm 40 mm 304 g 210 n Sep 2014 699ebay.com
9.
 
Canon 6D 145 mm 111 mm 71 mm 770 g 1090 Y Sep 2012 2,099ebay.com
10.
 
Canon 5D Mark II 152 mm 114 mm 75 mm 850 g 850 Y Sep 2008 3,499ebay.com
11.
 
Canon 5D 152 mm 113 mm 75 mm 895 g 400 Y Aug 2005 3,299ebay.com
12.
 
Nikon D610 141 mm 113 mm 82 mm 850 g 900 Y Oct 2013 1,999ebay.com
13.
 
Nikon D600 141 mm 113 mm 82 mm 850 g 900 Y Sep 2012 2,099ebay.com
14.
 
Nikon D800 146 mm 123 mm 82 mm 1000 g 900 Y Feb 2012 2,999ebay.com
15.
 
Nikon D800E 146 mm 123 mm 82 mm 1000 g 900 Y Feb 2012 3,299ebay.com
16.
 
Panasonic ZS100 111 mm 65 mm 44 mm 312 g 300 n Jan 2016 699ebay.com
17.
 
Sony RX100 III 102 mm 58 mm 41 mm 290 g 320 n May 2014 799ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
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Any camera decision will obviously take relative prices into account. 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 G5X was launched at a lower price than the 5D Mark III, despite having a lens built in. 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 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 more expensive and lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Canon 5D Mark III features a full frame sensor and the Canon G5 X an one-inch sensor. The sensor area in the G5X is 87 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.0 and 2.7. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Technology-wise, the G5X uses a more advanced image processing engine (DIGIC 6) than the 5D Mark III (DIGIC 5+), with benefits for noise reduction, color accuracy, and processing speed.

Canon 5D Mark III and Canon G5 X sensor measures

With 22.1MP, the 5D Mark III offers a higher resolution than the G5X (20MP), but the 5D Mark III nevertheless has larger individual pixels (pixel pitch of 6.25μm versus 2.41μm for the G5X) due to its larger sensor. However, the G5X is a much more recent model (by 3 years and 7 months) than the 5D 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 5D Mark III implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the 5D Mark III for good quality output (200 dots per inch) amounts to 28.8 x 19.2 inches or 73.2 x 48.8 cm, for very good quality (250 dpi) 23 x 15.4 inches or 58.5 x 39 cm, and for excellent quality (300 dpi) 19.2 x 12.8 inches or 48.8 x 32.5 cm. The corresponding values for the Canon G5 X are 27.4 x 18.2 inches or 69.5 x 46.3 cm for good quality, 21.9 x 14.6 inches or 55.6 x 37.1 cm for very good quality, and 18.2 x 12.2 inches or 46.3 x 30.9 cm for excellent quality prints.

The Canon EOS 5D Mark III has a native sensitivity range from ISO 100 to ISO 25600, which can be extended to ISO 50-102400. The corresponding ISO settings for the Canon PowerShot G5 X are ISO 125 to ISO 12800, with the possibility to increase the ISO range to 125-25600.

In terms of underlying technology, the 5D Mark III is build around a CMOS sensor, while the G5X uses a BSI-CMOS imager. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.

5D Mark III versus G5X MP

Consistent information on actual sensor performance is available from DXO Mark for many cameras. This service assesses and scores the color depth ("DXO Portrait"), dynamic range ("DXO Landscape"), and low-light sensitivity ("DXO Sports") of camera sensors, and also publishes an overall camera score. Of the two cameras under review, the 5D Mark III provides substantially higher image quality than the G5X, with an overall score that is 19 points higher. This advantage is based on 2.6 bits higher color depth, 0.6 EV of lower dynamic range, and 2.3 stops in additional low light sensitivity. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.

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Sensor Characteristics
# image Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Canon 5D Mark III Full Frame 22.1 5760 38401080/30p24.011.7229381
2.
 
Canon G5 X 1-inch 20.0 5472 36481080/60p21.412.347162
3.
 
Canon 5D Mark IV Full Frame 30.1 6720 44804K/30p24.813.6299591
4.
 
Canon G7 X Mark II 1-inch 20.0 5472 36481080/60p21.811.926062
5.
 
Canon 5DS Full Frame 50.3 8688 57921080/30p24.712.4238187
6.
 
Canon 5DS R Full Frame 50.3 8688 57921080/30p24.612.4230886
7.
 
Canon G9 X 1-inch 20.0 5472 36481080/60p21.512.349563
8.
 
Canon G7 X 1-inch 20.0 5472 36481080/60p23.012.755671
9.
 
Canon 6D Full Frame 20.0 5472 36481080/30p23.812.1234082
10.
 
Canon 5D Mark II Full Frame 21.0 5616 37441080/30p23.711.9181579
11.
 
Canon 5D Full Frame 12.7 4368 2912none22.911.1136871
12.
 
Nikon D610 Full Frame 24.2 6016 40161080/30p25.114.4292594
13.
 
Nikon D600 Full Frame 24.2 6016 40161080/30p25.114.2298094
14.
 
Nikon D800 Full Frame 36.2 7360 49121080/30p25.314.4285395
15.
 
Nikon D800E Full Frame 36.2 7360 49121080/30p25.614.3297996
16.
 
Panasonic ZS100 1-inch 20.0 5472 36484K/30p22.812.555970
17.
 
Sony RX100 III 1-inch 20.0 5472 36481080/60p22.412.349567
Note: DXO values in italics represent estimates based on sensor size and age.
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Many modern cameras are not only capable of taking still images, but can also record movies. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the G5X provides a faster frame rate than the 5D Mark III. It can shoot movie footage at 1080/60p, while the 5D Mark III is limited to 1080/30p.

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Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. For example, the G5X has an electronic viewfinder (2360k dots), while the 5D 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 table below summarizes some of the other core capabilities of the Canon 5D Mark III and Canon G5 X in connection with corresponding information for a sample of similar cameras.

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Core Features
# image 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 5D Mark IIIoptical Y3.2 / 1040 fixed n 1/8000s 6.0/s n n
2.
 
Canon G5 X2360 n3.0 / 1040 swivel Y 1/2000s 5.9/s Y Y
3.
 
Canon 5D Mark IVoptical Y3.2 / 1620 fixed Y 1/8000s 7.0/s n n
4.
 
Canon G7 X Mark IInone n3.0 / 1040 tilting Y 1/2000s 8.0/s Y Y
5.
 
Canon 5DSoptical Y3.2 / 1040 fixed n 1/8000s 5.0/s n n
6.
 
Canon 5DS Roptical Y3.2 / 1040 fixed n 1/8000s 5.0/s n n
7.
 
Canon G9 Xnone n3.0 / 1040 fixed Y 1/2000s 6.0/s Y Y
8.
 
Canon G7 Xnone n3.0 / 1040 tilting Y 1/2000s 6.5/s Y Y
9.
 
Canon 6Doptical Y3.0 / 1040 fixed n 1/4000s 4.5/s n n
10.
 
Canon 5D Mark IIoptical Y3.0 / 920 fixed n 1/8000s 3.9/s n n
11.
 
Canon 5Doptical Y2.5 / 230 fixed n 1/8000s 3.0/s n n
12.
 
Nikon D610optical Y3.2 / 921 fixed n 1/4000s 6.0/s Y n
13.
 
Nikon D600optical Y3.0 / 921 fixed n 1/4000s 5.5/s Y n
14.
 
Nikon D800optical Y3.2 / 921 fixed n 1/8000s 4.0/s Y n
15.
 
Nikon D800Eoptical Y3.2 / 921 fixed n 1/8000s 4.0/s Y n
16.
 
Panasonic ZS1001166 n3.0 / 1040 fixed Y 1/2000s 10.0/s Y Y
17.
 
Sony RX100 III1440 n3.0 / 1229 tilting n 1/2000s 10.0/s Y Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.
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One feature that is present on the 5D Mark III, but is missing on the G5X 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 G5X 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 5D Mark III does not have a selfie-screen.

The Canon G5 X 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 5D Mark III writes its imaging data to Compact Flash or SDXC cards, while the G5X uses SDXC cards. The 5D Mark III features dual card slots, which can be very useful in case a memory card fails. In contrast, the G5X only has one slot. The G5X supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the 5D 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 5D Mark III and Canon PowerShot G5 X and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
# image Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Canon 5D Mark IIIYmono / monoYYmini2.0---
2.
 
Canon G5 XYstereo / mono--mini2.0YY-
3.
 
Canon 5D Mark IVYmono / monoYYmini3.0YY-
4.
 
Canon G7 X Mark II-stereo / mono--micro2.0YY-
5.
 
Canon 5DSYmono / monoY-mini3.0---
6.
 
Canon 5DS RYmono / monoY-mini3.0---
7.
 
Canon G9 X-stereo / mono--micro2.0YY-
8.
 
Canon G7 X-stereo / mono--micro2.0YY-
9.
 
Canon 6DYmono / monoY-mini2.0Y--
10.
 
Canon 5D Mark IIYmono / monoY-mini2.0---
11.
 
Canon 5DY- / ----2.0---
12.
 
Nikon D610Ymono / monoYYmini2.0---
13.
 
Nikon D600Ymono / monoYYmini2.0---
14.
 
Nikon D800Ymono / monoYYmini3.0---
15.
 
Nikon D800EYmono / monoYYmini3.0---
16.
 
Panasonic ZS100-stereo / mono--micro2.0Y--
17.
 
Sony RX100 III-stereo / mono--micro2.0YY-
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It is notable that the 5D Mark III has a microphone port, which is missing on the G5X. Such an external microphone input can help to substantially improve the quality of audio recordings when a good external microphone is used.

Studio photographers will appreciate that the Canon 5D Mark III (unlike the G5X) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the 5D Mark III and the G5X have been discontinued, but can regularly be found used on ebay. The 5D Mark III was replaced by the Canon 5D Mark IV, while the G5X was followed by the Canon G5 X Mark II. Further information on the features and operation of the 5D Mark III and G5X can be found, respectively, in the Canon 5D Mark III Manual (free pdf) or the online Canon G5 X Manual.

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Review summary

So how do things add up? Is there a clear favorite between the Canon 5D Mark III and the Canon G5 X? Which camera is better? The listing below highlights the relative strengths of the two models.


Reasons to prefer the Canon EOS 5D Mark III:

  • More detail: Offers more megapixels (22.1 vs 20MP) with a 5% higher linear resolution.
  • Better image quality: Scores substantially higher (19 points) in the DXO overall assessment.
  • Richer colors: Generates images with noticeably better colors (2.6 bits more color depth).
  • Better low-light sensitivity: Requires less light for good images (2.3 stops ISO advantage).
  • Better sound: Can connect to an external microphone for higher quality sound recording.
  • Better sound control: Has a headphone port that enables audio monitoring while recording.
  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • Easier setting verification: Features an LCD display on top to control shooting parameters.
  • Larger screen: Has a bigger rear LCD (3.2" vs 3.0") for image review and settings control.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/2000s) to freeze action.
  • More flexible: Can take a variety of interchangeable lenses, including specialty optics.
  • Longer lasting: Can take more shots (950 versus 210) 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 March 2012).


Advantages of the Canon PowerShot G5 X:

  • More dynamic range: Captures a broader range of light and dark details (0.6 EV of extra DR).
  • Better jpgs: Has a more modern image processing engine (DIGIC 6 vs DIGIC 5+).
  • Better video: Provides higher movie framerates (1080/60p versus 1080/30p).
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • 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.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • Ready to shoot: Comes with an integrated lens, while the 5D Mark III requires a separate lens.
  • More compact: Is smaller (112x76mm vs 152x116mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight even though it has a lens built in (unlike the 5D Mark III).
  • Easier travel charging: Can be conveniently charged via its USB port.
  • 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.
  • Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
  • Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
  • Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
  • More affordable: Was introduced at a lower price, despite coming with a built-in lens.
  • More modern: Reflects 3 years and 7 months of technical progress since the 5D Mark III launch.

If the number of relative strengths (bullet points above) is taken as a guide, the G5X emerges as the winner of the match-up (19 : 16 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 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.

5D Mark III 16:19 G5X

How about other alternatives? Do the specifications of the Canon 5D Mark III and the Canon G5 X 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 the spec-sheets of cameras can offer a general idea of their imaging potential, it remains incomplete and does no justice, for example, to the way the 5D Mark III or the G5X perform in practice. 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 where reviews by experts come in. 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
# image  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Canon 5D Mark III..+ +..82/1004.5/54.5/5 Mar 2012 3,499ebay.com
2.
 
Canon G5 X5/5+ +..78/1004.5/54.5/5 Oct 2015 799ebay.com
3.
 
Canon 5D Mark IV4.5/5+ +4/587/1004.5/54.5/5 Aug 2016 3,499 amazon.com
4.
 
Canon G7 X Mark II4.5/5+ +..81/1004.5/54.5/5 Feb 2016 699ebay.com
5.
 
Canon 5DS..+..83/1004.5/54.5/5 Feb 2015 3,699ebay.com
6.
 
Canon 5DS R5/5+..83/1005/54.5/5 Feb 2015 3,699ebay.com
7.
 
Canon G9 X3.5/5+ +....4.5/54.5/5 Oct 2015 529ebay.com
8.
 
Canon G7 X4/5+ +..77/1004.5/54.5/5 Sep 2014 699ebay.com
9.
 
Canon 6D5/5+ +..83/1004.5/54.5/5 Sep 2012 2,099ebay.com
10.
 
Canon 5D Mark II4/591/100..79/1004/5.. Sep 2008 3,499ebay.com
11.
 
Canon 5D..88/100..+ +o.. Aug 2005 3,299ebay.com
12.
 
Nikon D6104/5+ +..87/1004.5/54.5/5 Oct 2013 1,999ebay.com
13.
 
Nikon D6004/5+ +..87/1005/54.5/5 Sep 2012 2,099ebay.com
14.
 
Nikon D8005/5+ +..82/1005/55/5 Feb 2012 2,999ebay.com
15.
 
Nikon D800E......84/1005/55/5 Feb 2012 3,299ebay.com
16.
 
Panasonic ZS1004.5/5+ +..82/1004.5/54.5/5 Jan 2016 699ebay.com
17.
 
Sony RX100 III5/5+ +..82/1004.5/55/5 May 2014 799ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.
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The above review scores should be interpreted with care, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

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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. 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 5D Mark III vs Canon G5 X

    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 5D Mark III Canon G5 X
    Camera Type Digital single lens reflex Fixed lens compact camera
    Camera Lens Canon EF mount lenses 24-100mm f/1.8-2.8
    Launch Date March 2012 October 2015
    Launch Price USD 3,499 USD 799
    Sensor Specs Canon 5D Mark III Canon G5 X
    Sensor Technology CMOS BSI-CMOS
    Sensor Format Full Frame Sensor 1" Sensor
    Sensor Size 36.0 x 24.0 mm 13.2 x 8.8 mm
    Sensor Area 864 mm2 116.16 mm2
    Sensor Diagonal 43.3 mm 15.9 mm
    Crop Factor 1.0x 2.7x
    Sensor Resolution 22.1 Megapixels 20 Megapixels
    Image Resolution 5760 x 3840 pixels 5472 x 3648 pixels
    Pixel Pitch 6.25 μm 2.41 μm
    Pixel Density 2.56 MP/cm2 17.18 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability 1080/30p Video 1080/60p Video
    ISO Setting 100 - 25,600 ISO 125 - 12,800 ISO
    ISO Boost 50 - 102,400 ISO 125 - 25,600 ISO
    Image Processor DIGIC 5+ DIGIC 6
    DXO Sensor Quality (score) 81 62
    DXO Color Depth (bits) 24.0 21.4
    DXO Dynamic Range (EV) 11.7 12.3
    DXO Low Light (ISO) 2293 471
    Screen Specs Canon 5D Mark III Canon G5 X
    Viewfinder Type Optical viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.71x
    Viewfinder Resolution 2360k dots
    Top-Level Screen Control Panel no Top Display
    LCD Framing Live View Live View
    Rear LCD Size 3.2inch 3.0inch
    LCD Resolution 1040k dots 1040k dots
    LCD Attachment Fixed screen Swivel screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Canon 5D Mark III Canon G5 X
    Focus System Phase-detect AF Contrast-detect AF
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/8000s 1/2000s
    Continuous Shooting 6 shutter flaps/s 5.9 shutter flaps/s
    Time-Lapse Photographyno IntervalometerIntervalometer built-in
    Fill Flash no On-Board Flash Built-in Flash
    Storage Medium CF or SDXC cards SDXC cards
    Single or Dual Card Slots Dual card slots Single card slot
    UHS card support no UHS-I
    Connectivity Specs Canon 5D Mark III Canon G5 X
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket no PC Sync
    USB Connector USB 2.0 USB 2.0
    HDMI Port mini HDMI mini HDMI
    Microphone Port External MIC port no MIC socket
    Headphone Socket Headphone port no Headphone port
    Wifi Support no Wifi Wifi built-in
    Near-Field Communication no NFC NFC built-in
    Body Specs Canon 5D Mark III Canon G5 X
    Environmental SealingWeathersealed bodynot weather sealed
    Battery Type Canon LP-E6 Canon NB-13L
    Battery Life (CIPA)950 shots per charge210 shots per charge
    In-Camera Charging no USB charging USB charging
    Body Dimensions 152 x 116 x 76 mm
    (6.0 x 4.6 x 3.0 in)
    112 x 76 x 44 mm
    (4.4 x 3.0 x 1.7 in)
    Camera Weight 950 g (33.5 oz) 353 g (12.5 oz)
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