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Canon 1D Mark III vs G1X

The Canon EOS-1D Mark III and the Canon PowerShot G1 X are two digital cameras that were announced, respectively, in February 2007 and January 2012. The 1D Mark III is a DSLR, while the G1X is a fixed lens compact. The cameras are based on an APS-H (1D Mark III) and an 1.5-inch (G1X) sensor. The 1D Mark III has a resolution of 10.1 megapixels, whereas the G1X provides 14.2 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 VS Canon G1 X
Canon 1D Mark III Canon G1 X
Digital single lens reflex Fixed lens compact camera
Canon EF mount lenses 28-112mm f/2.8-5.8
10.1 MP, APS-H Sensor 14.2 MP, 1.5" Sensor
no Video 1080/24p Video
ISO 100-3200 (50-6400) ISO 100-12800
Optical viewfinder Optical viewfinder
3.0" LCD, 230k dots 3.0" LCD, 922k dots
Fixed screen (not touch-sensitive) Swivel touchscreen
10 shutter flaps per second 1.9 shutter flaps per second
Weathersealed bodyNot weather sealed
2200 shots per battery charge250 shots per battery charge
156 x 157 x 80 mm, 1155 g 117 x 81 x 65 mm, 534 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS-1D Mark III and the Canon PowerShot G1 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.

Body comparison

The side-by-side display below illustrates the physical size and weight of the Canon 1D Mark III and the Canon G1 X. The two cameras are presented according to their relative size. Three consecutive views from the front, the top, and the rear side are shown. All width, height and depth dimensions are rounded to the nearest millimeter.

Size Canon 1D Mark III vs Canon G1 X
Compare 1D Mark III versus G1X top
Comparison 1D Mark III or G1X rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Canon G1 X is considerably smaller (61 percent) than the Canon 1D Mark III. It is worth mentioning in this context that the 1D Mark III is splash and dust resistant, while the G1X does not feature any corresponding weather-sealing.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the G1X has a lens built in, whereas the 1D 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 1D Mark III and their specifications in the Canon EF Lens Catalog.

Concerning battery life, the 1D Mark III gets 2200 shots out of its LP-E4 battery, while the G1X can take 250 images on a single charge of its NB-10L 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 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, 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)
Camera
Model
 
Canon 1D Mark III» 6.1 in 6.2 in 3.1 in 40.7 oz 2200 Y Feb 2007 4,499iCanon 1D Mark III
 
Canon G1 X« 4.6 in 3.2 in 2.6 in 18.8 oz 250 n Jan 2012 799iCanon G1 X
 
Canon 5DS R« » 6.0 in 4.6 in 3.0 in 32.8 oz 700 Y Feb 2015 3,699 iCanon 5DS R
 
Canon G1 X Mark II« » 4.6 in 2.9 in 2.6 in 19.5 oz 240 n Feb 2014 799 iCanon G1 X Mark II
 
Canon G16« » 4.3 in 3.0 in 1.6 in 12.6 oz 360 n Aug 2013 549 iCanon G16
 
Canon 5D Mark III« » 6.0 in 4.6 in 3.0 in 33.5 oz 950 Y Mar 2012 3,499iCanon 5D Mark III
 
Canon T4i« » 5.2 in 3.9 in 3.1 in 20.3 oz 440 n Jun 2012 849iCanon T4i
 
Canon T3« » 5.1 in 3.9 in 3.1 in 17.5 oz 700 n Feb 2011 449iCanon T3
 
Canon 1D Mark IV« » 6.1 in 6.2 in 3.1 in 43.4 oz 1500 Y Oct 2009 4,999iCanon 1D Mark IV
 
Canon T1i« » 5.1 in 3.9 in 2.4 in 18.3 oz 400 n Mar 2009 799iCanon T1i
 
Canon 5D Mark II« » 6.0 in 4.5 in 3.0 in 30.0 oz 850 Y Sep 2008 3,499iCanon 5D Mark II
 
Canon 1Ds Mark III« » 5.9 in 6.3 in 3.1 in 48.9 oz 1800 Y Aug 2007 7,999iCanon 1Ds Mark III
 
Canon 1D Mark II N« » 6.1 in 6.2 in 3.1 in 55.2 oz 1200 Y Aug 2005 3,999iCanon 1D Mark II N
 
Canon 1D Mark II« » 6.1 in 6.2 in 3.1 in 54.1 oz 1200 Y Jan 2004 4,499iCanon 1D Mark II
 
Canon 1Ds« » 6.1 in 6.2 in 3.1 in 44.6 oz 600 Y Sep 2002 8,999iCanon 1Ds
 
Nikon D3« » 6.3 in 6.2 in 3.5 in 45.9 oz 4300 Y Aug 2007 4,999iNikon D3
 
Nikon D2Xs« » 6.2 in 5.9 in 3.4 in 44.2 oz 3800 Y Jun 2006 4,699iNikon D2Xs
Note: Measurements and pricing do not include easily detachable parts, such as 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 G1X was launched at a lower price than the 1D 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.

 

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

Of the two cameras under consideration, the Canon 1D Mark III features an APS-H sensor and the Canon G1 X an 1.5-inch sensor. The sensor area in the G1X is 50 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.3 and 1.85. The sensor in the 1D Mark III has a native 3:2 aspect ratio, while the one in the G1X offers a 4:3 aspect.

Technology-wise, the G1X uses a more advanced image processing engine (DIGIC 5) than the 1D Mark III (DIGIC III), with benefits for noise reduction, color accuracy, and processing speed.

Canon 1D Mark III and Canon G1 X sensor measures

Despite having a smaller sensor, the G1X offers a higher resolution of 14.2 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 4.30μm versus 7.21μm for the 1D Mark III). However, it should be noted that the G1X is much more recent (by 4 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.

The resolution advantage of the Canon G1 X implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the G1X for good quality output (200 dots per inch) amounts to 21.8 x 16.3 inch or 55.3 x 41.5 cm, for very good quality (250 dpi) 17.4 x 13.1 inch or 44.2 x 33.2 cm, and for excellent quality (300 dpi) 14.5 x 10.9 inch or 36.8 x 27.6 cm. The corresponding values for the Canon 1D Mark III are 19.4 x 13 inch or 49.4 x 32.9 cm for good quality, 15.6 x 10.4 inch or 39.5 x 26.3 cm for very good quality, and 13 x 8.6 inch 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 Canon PowerShot G1 X are ISO 100 to ISO 12800 (no boost).

1D Mark III versus G1X 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 1D Mark III provides substantially higher image quality than the G1X, with an overall score that is 11 points higher. This advantage is based on 1 bits higher color depth, 0.9 EV in additional dynamic range, and 0.7 stops in additional low light sensitivity. The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.

Sensor Characteristics
  Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Camera
Model
 
Canon 1D Mark III APS-H 10.1 3888 2592none22.711.7107871Canon 1D Mark III
 
Canon G1 X 1.5-inch 14.2 4352 32641080/24p21.710.864460Canon G1 X
 
Canon 5DS R Full Frame 50.3 8688 57921080/30p24.612.4230886Canon 5DS R
 
Canon G1 X Mark II 1.5-inch 13.0 4160 31201080/30p21.510.858158Canon G1 X Mark II
 
Canon G16 1/1.7 12.0 4000 30001080/60p21.011.723054Canon G16
 
Canon 5D Mark III Full Frame 22.1 5760 38401080/30p24.011.7229381Canon 5D Mark III
 
Canon T4i APS-C 17.9 5184 34561080/30p21.711.272262Canon T4i
 
Canon T3 APS-C 12.2 4272 2848720/30p21.911.075562Canon T3
 
Canon 1D Mark IV APS-H 16.0 4896 32641080/30p22.812.0132074Canon 1D Mark IV
 
Canon T1i APS-C 15.1 4752 31681080/20p21.711.566363Canon T1i
 
Canon 5D Mark II Full Frame 21.0 5616 37441080/30p23.711.9181579Canon 5D Mark II
 
Canon 1Ds Mark III Full Frame 21.0 5616 3744none24.012.0166380Canon 1Ds Mark III
 
Canon 1D Mark II N APS-H 8.2 3504 2336none22.311.297566Canon 1D Mark II N
 
Canon 1D Mark II APS-H 8.2 3504 2336none22.311.1100366Canon 1D Mark II
 
Canon 1Ds Full Frame 11.0 4064 2704none21.811.095463Canon 1Ds
 
Nikon D3 Full Frame 12.1 4256 2832none23.512.2229081Nikon D3
 
Nikon D2Xs APS-C 12.2 4288 2848none22.210.948959Nikon D2Xs

Many modern cameras are not only capable of taking still images, but also of capturing video footage. The G1X indeed provides for movie recording, while the 1D Mark III does not. The highest resolution format that the G1X can use is 1080/24p.

 

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. The 1D Mark III and the G1X are similar in the sense that both have an optical viewfinder. The latter is useful for getting a clear image for framing even in brightly lit environments. The adjacent table lists some of the other core features of the Canon 1D Mark III and Canon G1 X along with similar information for a selection of comparators.

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)
Mech
Shutter
Speed
Shutter
Flaps
(1/sec)
Built-in
Flash
(yes/no)
Built-in
Image
Stab
Camera
Model
 
Canon 1D Mark IIIoptical Y 3.0 230 fixed n 1/8000s 10.0 n n Canon 1D Mark III
 
Canon G1 Xoptical n 3.0 922 Swivel n 1/4000s 1.9 Y Y Canon G1 X
 
Canon 5DS Roptical Y 3.2 1040 fixed n 1/8000s 5.0 n n Canon 5DS R
 
Canon G1 X Mark IIoptional n 3.0 1040 tilting Y 1/4000s 5.2 Y Y Canon G1 X Mark II
 
Canon G16optical n 3.0 922 fixed n 1/4000s 2.2 Y Y Canon G16
 
Canon 5D Mark IIIoptical Y 3.2 1040 fixed n 1/8000s 6.0 n n Canon 5D Mark III
 
Canon T4ioptical n 3.0 1040 swivel Y 1/4000s 5.0 Y n Canon T4i
 
Canon T3optical n 2.7 230 fixed n 1/4000s 3.0 Y n Canon T3
 
Canon 1D Mark IVoptical Y 3.0 920 fixed n 1/8000s 10.0 n n Canon 1D Mark IV
 
Canon T1ioptical n 3.0 920 fixed n 1/4000s 3.4 Y n Canon T1i
 
Canon 5D Mark IIoptical Y 3.0 920 fixed n 1/8000s 3.9 n n Canon 5D Mark II
 
Canon 1Ds Mark IIIoptical Y 3.0 230 fixed n 1/8000s 5.0 n n Canon 1Ds Mark III
 
Canon 1D Mark II Noptical Y 2.5 230 fixed n 1/8000s 8.5 n n Canon 1D Mark II N
 
Canon 1D Mark IIoptical Y 2.0 230 fixed n 1/8000s 8.3 n n Canon 1D Mark II
 
Canon 1Dsoptical Y 2.0 120 fixed n 1/8000s 3.0 n n Canon 1Ds
 
Nikon D3optical Y 3.0 922 fixed n 1/8000s 11.0 n n Nikon D3
 
Nikon D2Xsoptical Y 2.5 230 fixed n 1/8000s 5.0 n n Nikon D2Xs

One feature that is present on the 1D Mark III, but is missing on the G1X 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 G1X 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 1D Mark III writes its imaging data to Compact Flash or SDHC cards, while the G1X 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 G1X only has one slot.

 

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 Canon PowerShot G1 X and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

Input-Output Connections
  Camera
Model
Hotshoe
Port
Internal
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
Camera
Model
 
Canon 1D Mark IIIYnonenone--none2.0---Canon 1D Mark III
 
Canon G1 XYstereomono--mini2.0---Canon G1 X
 
Canon 5DS RYmonomonoY-mini3.0---Canon 5DS R
 
Canon G1 X Mark IIYstereomono--mini2.0YY-Canon G1 X Mark II
 
Canon G16Ystereomono--mini2.0Y--Canon G16
 
Canon 5D Mark IIIYmonomonoYYmini2.0---Canon 5D Mark III
 
Canon T4iYstereomonoY-mini2.0---Canon T4i
 
Canon T3Ystereomono--mini2.0---Canon T3
 
Canon 1D Mark IVYstereononeY-mini2.0---Canon 1D Mark IV
 
Canon T1iYmonomono--mini2.0---Canon T1i
 
Canon 5D Mark IIYmonomonoY-mini2.0---Canon 5D Mark II
 
Canon 1Ds Mark IIIYnonenone--none2.0---Canon 1Ds Mark III
 
Canon 1D Mark II NYnonenone--none1.1---Canon 1D Mark II N
 
Canon 1D Mark IIYnonenone--none1.1---Canon 1D Mark II
 
Canon 1DsYnonenone--noneFW---Canon 1Ds
 
Nikon D3Ynonenone--mini2.0---Nikon D3
 
Nikon D2XsYnonenone--none2.0---Nikon D2Xs

Studio photographers will appreciate that the Canon 1D Mark III (unlike the G1X) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the 1D Mark III and the G1X 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 G1X was followed by the Canon G1X Mark II. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Canon website.

Review summary

So what is the bottom line? Which of the two cameras – the Canon 1D Mark III or the Canon G1 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-1D Mark III:

  • Better image quality: Scores substantially higher (11 points) in the DXO overall assessment.
  • More dynamic range: Captures a larger spectrum of light and dark details (0.9 EV of extra DR).
  • Better low-light sensitivity: Requires less light for good images (0.7 stops ISO advantage).
  • Easier setting verification: Features an LCD display on top to control shooting parameters.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • Faster burst: Shoots at higher frequency (10 vs 1.9 flaps/sec) to capture the decisive moment.
  • 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 (2200 versus 250) 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 February 2007).


Advantages of the Canon PowerShot G1 X:

  • More detail: Has more megapixels (14.2 vs 10.1MP), which boosts linear resolution by 16%.
  • Better jpgs: Has a more modern image processing engine (DIGIC 5 vs DIGIC III).
  • Broader imaging potential: Can capture not only stills but also 1080/24p video.
  • More detailed LCD: Has a higher resolution rear screen (922k vs 230k dots).
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • Ready to shoot: Comes with an integrated lens, while the 1D Mark III requires a separate lens.
  • More compact: Is smaller (117x81mm vs 156x157mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight even though it has a lens built in (unlike the 1D 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.
  • More affordable: Was introduced at a lower price, despite coming with a built-in lens.
  • More modern: Reflects 4 years and 10 months of technical progress since the 1D Mark III launch.

If the number of relative strengths (bullet points above) is taken as a guide, the 1D Mark III comes out slightly ahead of the G1X (13 : 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 13:12 G1X

How about other alternatives? Do the specifications of the Canon 1D Mark III and the Canon G1 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 specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it says little about, for example, the shooting experience and imaging performance of the 1D Mark III and the G1X in practical situations. User reviews that are available, for instance, at amazon can sometimes shed light on these issues, but such feedback is all too often partial, inconsistent, and inaccurate.

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 (cameralabs, dpreview, ephotozine, imaging-resource, and photographyblog). 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.

Review Scores
  Camera
Model
cam
era
  labs  
dp
re
  view  
e
photo
  zine  
ima
ging
resource
photo
graphy
  blog  
Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Camera
Model
 
Canon 1D Mark III......o.. Feb 2007 4,499iCanon 1D Mark III
 
Canon G1 X+76/1004/54/54.5/5 Jan 2012 799iCanon G1 X
 
Canon 5DS R+83/1005/55/54.5/5 Feb 2015 3,699 iCanon 5DS R
 
Canon G1 X Mark II+77/1004/54/54.5/5 Feb 2014 799 iCanon G1 X Mark II
 
Canon G16+..4.5/54.5/54.5/5 Aug 2013 549 iCanon G16
 
Canon 5D Mark III+ +82/1004.5/55/54.5/5 Mar 2012 3,499iCanon 5D Mark III
 
Canon T4i+ +77/1004.5/54.5/54.5/5 Jun 2012 849iCanon T4i
 
Canon T380/10069/1004/54/54.5/5 Feb 2011 449iCanon T3
 
Canon 1D Mark IV..89/100..5/5.. Oct 2009 4,999iCanon 1D Mark IV
 
Canon T1i+ +74/1004.5/55/54.5/5 Mar 2009 799iCanon T1i
 
Canon 5D Mark II91/10079/1004/55/5.. Sep 2008 3,499iCanon 5D Mark II
 
Canon 1Ds Mark III..+ +4.5/5.... Aug 2007 7,999iCanon 1Ds Mark III
 
Canon 1D Mark II N.......... Aug 2005 3,999iCanon 1D Mark II N
 
Canon 1D Mark II..+ +..o.. Jan 2004 4,499iCanon 1D Mark II
 
Canon 1Ds..+ +...... Sep 2002 8,999iCanon 1Ds
 
Nikon D3..+ +5/5o4.5/5 Aug 2007 4,999iNikon D3
 
Nikon D2Xs......o.. Jun 2006 4,699iNikon D2Xs
Notes: (+ +) 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. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, 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.

Canon 1D Mark III:
Check Ebay offers
Canon G1 X:
Check Ebay offers

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 1D Mark III vs Canon G1 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 1D Mark III Canon G1 X
    Camera Type Digital single lens reflex Fixed lens compact camera
    Camera Lens Canon EF mount lenses 28-112mm f/2.8-5.8
    Launch Date February 2007 January 2012
    Launch Price USD 4499 USD 799
    Sensor Specs Canon 1D Mark III Canon G1 X
    Sensor Technology CMOS CMOS
    Sensor Format APS-H Sensor 1.5" Sensor
    Sensor Size 28.1 x 18.7 mm 18.7 x 14.0 mm
    Sensor Area 525.47 mm2 261.8 mm2
    Sensor Diagonal 33.8 mm 23.4 mm
    Crop Factor 1.3x 1.85x
    Sensor Resolution 10.1 Megapixels 14.2 Megapixels
    Image Resolution 3888 x 2592 pixels 4352 x 3264 pixels
    Pixel Pitch 7.21 μm 4.30 μm
    Pixel Density 1.92 MP/cm2 5.43 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability no Video 1080/24p Video
    ISO Setting 100-3200 ISO 100-12800 ISO
    ISO Boost 50-6400 ISO no Enhancement
    Image Processor DIGIC III DIGIC 5
    DXO Sensor Quality (score) 71 60
    DXO Color Depth (bits) 22.7 21.7
    DXO Dynamic Range (EV) 11.7 10.8
    DXO Low Light (ISO) 1078 644
    Screen Specs Canon 1D Mark III Canon G1 X
    Viewfinder Type Optical viewfinder Optical viewfinder
    Viewfinder Field of View 100% 74%
    Viewfinder Magnification 0.58x ..x
    Top-Level Screen Control Panel no Top Display
    LCD Framing Live View Live View
    Rear LCD Size 3.0 inch 3.0 inch
    LCD Resolution 230k dots 922k dots
    LCD Attachment Fixed screen
    Shooting Specs Canon 1D Mark III Canon G1 X
    Focus System Phase-detect AF Contrast-detect AF
    Continuous Shooting 10 shutter flaps/s 1.9 shutter flaps/s
    Fill Flash no On-Board Flash Build-in Flash
    Storage Medium CF or SDHC cards SDXC cards
    Second Storage Option Dual card slots Single card slot
    UHS card support no no
    Connectivity Specs Canon 1D Mark III Canon G1 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
    Wifi Support no Wifi no Wifi
    Body Specs Canon 1D Mark III Canon G1 X
    Environmental SealingWeathersealed bodyNot weather sealed
    Battery Type LP-E4 NB-10L
    Battery Life (CIPA)2200 shots per charge250 shots per charge
    Body Dimensions 156 x 157 x 80 mm
    (6.1 x 6.2 x 3.1 in)
    117 x 81 x 65 mm
    (4.6 x 3.2 x 2.6 in)
    Camera Weight 1155 g (40.7 oz) 534 g (18.8 oz)

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