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Canon 1Ds Mark III vs G3X

The Canon EOS-1Ds Mark III and the Canon PowerShot G3 X are two digital cameras that were announced, respectively, in August 2007 and June 2015. The 1Ds Mark III is a DSLR, while the G3X is a fixed lens compact. The cameras are based on a full frame (1Ds Mark III) and an one-inch (G3X) sensor. The 1Ds Mark III has a resolution of 21 megapixels, whereas the G3X 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 1Ds Mark III
versus
Canon G3 X
Canon 1Ds Mark III   Canon G3 X
Digital single lens reflex Fixed lens compact camera
Canon EF mount lenses 24-600mm f/2.8-5.6
21 MP – Full Frame sensor 20 MP – 1" sensor
no Video 1080/60p Video
ISO 100-1,600 (50 - 3,200) ISO 125-12,800 (125 - 25,600)
Optical viewfinder Viewfinder optional
3.0" LCD – 230k dots 3.2" LCD – 1620k dots
Fixed screen (not touch-sensitive) Tilting touchscreen
5 shutter flaps per second 5.9 shutter flaps per second
Weathersealed bodyWeathersealed body
1800 shots per battery charge300 shots per battery charge
150 x 160 x 80 mm, 1385 g 123 x 77 x 105 mm, 733 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 Canon PowerShot G3 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

The physical size and weight of the Canon 1Ds Mark III and the Canon G3 X 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 dimensions are rounded to the nearest millimeter.

Size Canon 1Ds Mark III vs Canon G3 X
Compare 1Ds Mark III versus G3X top
Comparison 1Ds Mark III or G3X rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Canon G3 X is considerably smaller (61 percent) than the Canon 1Ds Mark III. 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 and possibly misleading, as the G3X has a lens built in, whereas the 1Ds Mark III is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup. You can compare the optics available for the 1Ds Mark III and their specifications in the Canon EF Lens Catalog.

Concerning battery life, the 1Ds Mark III gets 1800 shots out of its Canon LP-E4 battery, while the G3X can take 300 images on a single charge of its Canon NB-10L 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 following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. If you want to switch the focus of the display and review another camera pair, you can move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons 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 1Ds Mark III 150 mm 160 mm 80 mm 1385 g 1800 Y Aug 2007 US$ 7 999ebay.com
2.
 
Canon G3 X 123 mm 77 mm 105 mm 733 g 300 Y Jun 2015 US$ 999ebay.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 Mark II 156 mm 158 mm 80 mm 1215 g 1200 Y Sep 2004 US$ 7 999ebay.com
5.
 
Canon 1D C 158 mm 164 mm 83 mm 1545 g 1120 Y Apr 2012 US$ 14 999ebay.com
6.
 
Canon 1D X 158 mm 168 mm 83 mm 1551 g 1120 Y Oct 2011 US$ 6 799ebay.com
7.
 
Canon 1D X Mark II 158 mm 168 mm 83 mm 1530 g 1210 Y Feb 2016 US$ 5 999ebay.com
8.
 
Canon 1D X Mark III 158 mm 168 mm 83 mm 1440 g 2850 Y Jan 2020 US$ 6 499 amazon.com
9.
 
Canon 5D Mark II 152 mm 114 mm 75 mm 850 g 850 Y Sep 2008 US$ 3 499ebay.com
10.
 
Canon 5D Mark III 152 mm 116 mm 76 mm 950 g 950 Y Mar 2012 US$ 3 499ebay.com
11.
 
Canon 6D 145 mm 111 mm 71 mm 770 g 1090 Y Sep 2012 US$ 2 099ebay.com
12.
 
Canon 70D 139 mm 104 mm 79 mm 755 g 920 Y Jul 2013 US$ 1 199ebay.com
13.
 
Canon 80D 139 mm 105 mm 79 mm 730 g 960 Y Feb 2016 US$ 1 199ebay.com
14.
 
Nikon D3X 160 mm 157 mm 88 mm 1260 g 4400 Y Dec 2008 US$ 7 999ebay.com
15.
 
Panasonic FZ1000 137 mm 99 mm 131 mm 831 g 360 n Jun 2014 US$ 899ebay.com
16.
 
Sony RX10 II 129 mm 88 mm 102 mm 813 g 400 Y Jun 2015 US$ 1 299ebay.com
17.
 
Sony RX100 IV 102 mm 58 mm 41 mm 298 g 280 n Jun 2015 US$ 999ebay.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 G3X was launched at a lower price than the 1Ds Mark III, despite having a lens built in. Usually, retail prices stay at first close to the launch price, but after several months, discounts become available. Later in the product cycle and, in particular, when the replacement model is about to appear, further discounting and stock clearance sales often push the camera price considerably down.

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 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 Canon G3 X an one-inch sensor. The sensor area in the G3X 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.

Canon 1Ds Mark III and Canon G3 X sensor measures

With 21MP, the 1Ds Mark III offers a slightly higher resolution than the G3X (20MP), but the 1Ds Mark III nevertheless has larger individual pixels (pixel pitch of 6.41μm versus 2.41μm for the G3X) due to its larger sensor. However, the G3X is a much more recent model (by 7 years and 9 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 Canon EOS-1Ds Mark III has a native sensitivity range from ISO 100 to ISO 1600, which can be extended to ISO 50-3200. The corresponding ISO settings for the Canon PowerShot G3 X are ISO 125 to ISO 12800, with the possibility to increase the ISO range to 125-25600.

In terms of underlying technology, the 1Ds Mark III is build around a CMOS sensor, while the G3X 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.

1Ds Mark III versus G3X 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 G3X, with an overall score that is 17 points higher. This advantage is based on 2.6 bits higher color depth, 0.3 EV of lower dynamic range, and 1.7 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
  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.
 
Canon G3 X 1-inch 20.0 5472 36481080/60p21.412.352163
3.
 
Canon 1D Mark III APS-H 10.1 3888 2592none22.711.7107871
4.
 
Canon 1Ds Mark II Full Frame 16.6 4992 3328none23.311.3148074
5.
 
Canon 1D C Full Frame 17.9 5184 34564K/24p24.313.0215585
6.
 
Canon 1D X Full Frame 17.9 5184 34561080/30p23.811.8278682
7.
 
Canon 1D X Mark II Full Frame 20.0 5472 36484K/60p24.113.5320788
8.
 
Canon 1D X Mark III Full Frame 20.0 5472 36484K/60p24.214.5324891
9.
 
Canon 5D Mark II Full Frame 21.0 5616 37441080/30p23.711.9181579
10.
 
Canon 5D Mark III Full Frame 22.1 5760 38401080/30p24.011.7229381
11.
 
Canon 6D Full Frame 20.0 5472 36481080/30p23.812.1234082
12.
 
Canon 70D APS-C 20.0 5472 36481080/30p22.511.692668
13.
 
Canon 80D APS-C 24.0 6000 40001080/60p23.613.2113579
14.
 
Nikon D3X Full Frame 24.4 6048 4032none24.713.7199288
15.
 
Panasonic FZ1000 1-inch 20.0 5472 36484K/30p22.111.751764
16.
 
Sony RX10 II 1-inch 20.0 5472 36484K/30p23.012.653170
17.
 
Sony RX100 IV 1-inch 20.0 5472 36484K/30p22.812.659170
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 also of capturing video footage. The G3X indeed provides for movie recording, while the 1Ds Mark III does not. The highest resolution format that the G3X can use is 1080/60p.

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Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. For example, the 1Ds Mark III has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the G3X relies on live view and the rear LCD for framing. That said, the G3X can be equipped with an optional viewfinder – the EVF-DC1. The adjacent table lists some of the other core features of the Canon 1Ds Mark III and Canon G3 X along with similar information for a selection of comparators.

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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.
 
Canon G3 Xoptional n3.2 / 1620 tilting Y 1/2000s 5.9/s Y Y
3.
 
Canon 1D Mark IIIoptical Y3.0 / 230 fixed n 1/8000s 10.0/s n n
4.
 
Canon 1Ds Mark IIoptical Y2.0 / 230 fixed n 1/8000s 4.0/s n n
5.
 
Canon 1D Coptical Y3.2 / 1040 fixed n 1/8000s 14.0/s n n
6.
 
Canon 1D Xoptical Y3.2 / 1040 fixed n 1/8000s 14.0/s n n
7.
 
Canon 1D X Mark IIoptical Y3.2 / 1620 fixed Y 1/8000s 16.0/s n n
8.
 
Canon 1D X Mark IIIoptical Y3.2 / 2100 fixed Y 1/8000s 20.0/s n n
9.
 
Canon 5D Mark IIoptical Y3.0 / 920 fixed n 1/8000s 3.9/s n n
10.
 
Canon 5D Mark IIIoptical Y3.2 / 1040 fixed n 1/8000s 6.0/s n n
11.
 
Canon 6Doptical Y3.0 / 1040 fixed n 1/4000s 4.5/s n n
12.
 
Canon 70Doptical Y3.0 / 1040 swivel Y 1/8000s 7.0/s Y n
13.
 
Canon 80Doptical Y3.0 / 1040 swivel Y 1/8000s 7.0/s Y n
14.
 
Nikon D3Xoptical Y3.0 / 922 fixed n 1/8000s 5.0/s n n
15.
 
Panasonic FZ10002359 n3.0 / 921 swivel n 1/4000s 12.0/s Y Y
16.
 
Sony RX10 II2359 Y3.0 / 1229 tilting n 1/3200s 14.0/s Y Y
17.
 
Sony RX100 IV2359 n3.0 / 1228 tilting n 1/2000s 16.0/s Y Y
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 G3X 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 G3X 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 G3X 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 G3X only has one slot. The G3X supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the 1Ds 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-1Ds Mark III and Canon PowerShot G3 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
  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.
 
Canon G3 XYstereo / monoYYmini2.0YY-
3.
 
Canon 1D Mark IIIY- / ----2.0---
4.
 
Canon 1Ds Mark IIY- / ----2.0---
5.
 
Canon 1D CYmono / monoYYmini2.0---
6.
 
Canon 1D XYmono / -Y-mini2.0---
7.
 
Canon 1D X Mark IIYmono / monoYYmini3.0---
8.
 
Canon 1D X Mark IIIYmono / monoYYmini3.1Y-Y
9.
 
Canon 5D Mark IIYmono / monoY-mini2.0---
10.
 
Canon 5D Mark IIIYmono / monoYYmini2.0---
11.
 
Canon 6DYmono / monoY-mini2.0Y--
12.
 
Canon 70DYstereo / monoY-mini2.0Y--
13.
 
Canon 80DYstereo / monoYYmini2.0YY-
14.
 
Nikon D3XY- / ---mini2.0---
15.
 
Panasonic FZ1000Ystereo / monoY-micro2.0YY-
16.
 
Sony RX10 IIYstereo / monoYYmicro2.0YY-
17.
 
Sony RX100 IV-stereo / mono--micro2.0YY-

It is notable that the G3X offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the 1Ds Mark III does not provide wifi capability.

Studio photographers will appreciate that the Canon 1Ds Mark III (unlike the G3X) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the 1Ds Mark III and the G3X have been discontinued, but can regularly be found used on ebay. The 1Ds Mark III was replaced by the Canon 1DX, while the G3X does not have a direct successor. Further information on the features and operation of the 1Ds Mark III and G3X can be found, respectively, in the Canon 1Ds Mark III Manual (free pdf) or the online Canon G3 X Manual.

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Review summary

So what is the bottom line? Which of the two cameras – the Canon 1Ds Mark III or the Canon G3 X – has the upper hand? Is one clearly better than the other? The listing below highlights the relative strengths of the two models.


Arguments in favor of the Canon EOS-1Ds Mark III:

  • Better image quality: Scores substantially higher (17 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 (1.7 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 1/2000s) to freeze action.
  • More flexible: Can take a variety of interchangeable lenses, including specialty optics.
  • More portrait friendly: Features an integrated vertical grip for easier portrait shooting.
  • Longer lasting: Can take more shots (1800 versus 300) on a single battery charge.
  • 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).


Advantages of the Canon PowerShot G3 X:

  • Broader imaging potential: Can capture not only stills but also 1080/60p video.
  • 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 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.
  • Faster burst: Shoots at higher frequency (5.9 vs 5 flaps/sec) to capture the decisive moment.
  • Ready to shoot: Comes with an integrated lens, while the 1Ds Mark III requires a separate lens.
  • More compact: Is smaller (123x77mm vs 150x160mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight even though it has a lens built in (unlike the 1Ds Mark III).
  • Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
  • Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
  • 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 7 years and 9 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 G3X is the clear winner of the contest (17 : 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.

1Ds Mark III 12:17 G3X

How about other alternatives? Do the specifications of the Canon 1Ds Mark III and the Canon G3 X place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Superzoom Camera listings whether the two cameras rank among the cream of the crop.

In any case, while the specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it remains incomplete and does no justice, for example, to the way the 1Ds Mark III or the G3X perform in practice. 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 where reviews by experts come in. The following table reports the overall ratings of the cameras as published by some of the major camera review sites (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.
 
Canon G3 X3.5/5+....4.5/54/5 Jun 2015 US$ 999ebay.com
3.
 
Canon 1D Mark III............ Feb 2007 US$ 4 499ebay.com
4.
 
Canon 1Ds Mark II......+ +.... Sep 2004 US$ 7 999ebay.com
5.
 
Canon 1D C............ Apr 2012 US$ 14 999ebay.com
6.
 
Canon 1D X5/5......4.5/54.5/5 Oct 2011 US$ 6 799ebay.com
7.
 
Canon 1D X Mark II....4.5/589/1004.5/54.5/5 Feb 2016 US$ 5 999ebay.com
8.
 
Canon 1D X Mark III..+ +5/5..4.5/54/5 Jan 2020 US$ 6 499 amazon.com
9.
 
Canon 5D Mark II4/591/100..79/1004/5.. Sep 2008 US$ 3 499ebay.com
10.
 
Canon 5D Mark III..+ +..82/1004.5/54.5/5 Mar 2012 US$ 3 499ebay.com
11.
 
Canon 6D5/5+ +..83/1004.5/54.5/5 Sep 2012 US$ 2 099ebay.com
12.
 
Canon 70D5/5+ +..83/1004.5/55/5 Jul 2013 US$ 1 199ebay.com
13.
 
Canon 80D4/5+ +4.5/584/1004.5/54.5/5 Feb 2016 US$ 1 199ebay.com
14.
 
Nikon D3X......86/1004/55/5 Dec 2008 US$ 7 999ebay.com
15.
 
Panasonic FZ10004/5+ +..82/1004.5/54.5/5 Jun 2014 US$ 899ebay.com
16.
 
Sony RX10 II5/5+ +..82/1004.5/54/5 Jun 2015 US$ 1 299ebay.com
17.
 
Sony RX100 IV4.5/5+ +..85/1004/54.5/5 Jun 2015 US$ 999ebay.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 comparisons of ratings among very different cameras or across long time periods have little meaning. 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 make your choice using the following search menu. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.

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    Specifications: Canon 1Ds Mark III vs Canon G3 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 1Ds Mark III Canon G3 X
    Camera Type Digital single lens reflex Fixed lens compact camera
    Camera Lens Canon EF mount lenses 24-600mm f/2.8-5.6
    Launch Date August 2007 June 2015
    Launch Price USD 7,999 USD 999
    Sensor Specs Canon 1Ds Mark III Canon G3 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 21 Megapixels 20 Megapixels
    Image Resolution 5616 x 3744 pixels 5472 x 3648 pixels
    Pixel Pitch 6.41 μm 2.41 μm
    Pixel Density 2.43 MP/cm2 17.18 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability no Video 1080/60p Video
    ISO Setting 100 - 1,600 ISO 125 - 12,800 ISO
    ISO Boost 50 - 3,200 ISO 125 - 25,600 ISO
    Image Processor DIGIC III (Dual) DIGIC 6
    DXO Sensor Quality (score) 80 63
    DXO Color Depth (bits) 24.0 21.4
    DXO Dynamic Range (EV) 12.0 12.3
    DXO Low Light (ISO) 1663 521
    Screen Specs Canon 1Ds Mark III Canon G3 X
    Viewfinder Type Optical viewfinder Viewfinder optional
    Viewfinder Field of View 100%
    Viewfinder Magnification 0.76x
    Top-Level Screen Control Panel no Top Display
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.2inch
    LCD Resolution 230k dots 1620k dots
    LCD Attachment Fixed screen Tilting screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Canon 1Ds Mark III Canon G3 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 5 shutter flaps/s 5.9 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 UHS-I
    Connectivity Specs Canon 1Ds Mark III Canon G3 X
    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
    Microphone Port no MIC socket External MIC port
    Headphone Socket no Headphone port Headphone port
    Wifi Support no Wifi Wifi built-in
    Near-Field Communication no NFC NFC built-in
    Body Specs Canon 1Ds Mark III Canon G3 X
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type Canon LP-E4 Canon NB-10L
    Battery Life (CIPA)1800 shots per charge300 shots per charge
    Body Dimensions 150 x 160 x 80 mm
    (5.9 x 6.3 x 3.1 in)
    123 x 77 x 105 mm
    (4.8 x 3.0 x 4.1 in)
    Camera Weight 1385 g (48.9 oz) 733 g (25.9 oz)
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    Check G3X offers at
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