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Canon G7 X Mark III vs T4i

The Canon PowerShot G7 X Mark III and the Canon EOS Rebel T4i (labelled Canon 650D in some countries) are two digital cameras that were revealed to the public, respectively, in July 2019 and June 2012. The G7X Mark III is a fixed lens compact, while the T4i is a DSLR. The cameras are based on an one-inch (G7X Mark III) and an APS-C (T4i) sensor. The G7X Mark III has a resolution of 20 megapixels, whereas the T4i provides 17.9 MP.

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

Headline Specifications
Canon G7 X Mark III VS Canon T4i
Canon G7 X Mark III Canon T4i
Fixed lens compact camera Digital single lens reflex
24-100mm f/1.8-2.8 Canon EF mount lenses
20 MP, 1" Sensor 17.9 MP, APS-C Sensor
4K/30p Video 1080/30p Video
ISO 125-12800 (125-25600) ISO 100-12800 (100-25600)
No viewfinder, LCD framing Optical viewfinder
3.0" LCD, 1040k dots 3.0" LCD, 1040k dots
Tilting touchscreen Swivel touchscreen
30 shutter flaps per second 5 shutter flaps per second
235 shots per battery charge440 shots per battery charge
105 x 61 x 41 mm, 304 g 133 x 100 x 79 mm, 575 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Canon PowerShot G7 X Mark III and the Canon EOS Rebel T4i? 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 physical size and weight of the Canon G7 X Mark III and the Canon T4i are illustrated in the side-by-side display below. 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 size dimensions are rounded to the nearest millimeter.

The G7X Mark III can be obtained in two different colors (black, silver), while the T4i is only available in black.

Size Canon G7 X Mark III vs Canon T4i
Compare G7X Mark III versus T4i top
Comparison G7X Mark III or T4i rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Canon T4i is considerably larger (108 percent) than the Canon G7 X Mark III. In this context, it is worth noting that neither the G7X Mark III nor the T4i are weather-sealed.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the G7X Mark III has a lens built in, whereas the T4i 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 T4i and their specifications in the Canon EF Lens Catalog.

Concerning battery life, the G7X Mark III gets 235 shots out of its NB-13L battery, while the T4i can take 440 images on a single charge of its LP-E8 power pack. The power pack in the G7X Mark III can be charged via the USB port, so that it is not always necessary to take the battery charger along when travelling.

The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. In case you want to display and compare another camera duo, just click on the right or left arrow next to the camera that you would like to inspect. Alternatively, you can also use the CAM-parator to select your camera combination among a larger number of options.

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 G7 X Mark III» 4.1 in 2.4 in 1.6 in 10.7 oz 235 n Jul 2019 749 iCanon G7 X Mark III
 
Canon T4i« 5.2 in 3.9 in 3.1 in 20.3 oz 440 n Jun 2012 849iCanon T4i
 
Canon G5 X Mark II« » 4.4 in 2.4 in 1.8 in 12.0 oz 230 n Jul 2019 899 iCanon G5 X Mark II
 
Canon SX740« » 4.3 in 2.5 in 1.6 in 10.5 oz 265 n Jul 2018 399 iCanon SX740
 
Canon G7 X Mark II« » 4.2 in 2.4 in 1.7 in 11.3 oz 265 n Feb 2016 699iCanon G7 X Mark II
 
Canon G5 X« » 4.4 in 3.0 in 1.7 in 12.5 oz 210 n Oct 2015 799iCanon G5 X
 
Canon T6s« » 5.2 in 4.0 in 3.1 in 19.9 oz 440 n Feb 2015 649iCanon T6s
 
Canon G7 X« » 4.1 in 2.4 in 1.6 in 10.7 oz 210 n Sep 2014 699iCanon G7 X
 
Canon T5« » 5.1 in 3.9 in 3.1 in 16.9 oz 500 n Feb 2014 449iCanon T5
 
Canon T5i« » 5.2 in 3.9 in 3.1 in 20.5 oz 440 n Mar 2013 649iCanon T5i
 
Canon T3i« » 5.2 in 3.9 in 3.1 in 20.1 oz 440 n Feb 2011 599iCanon T3i
 
Canon T2i« » 5.1 in 3.9 in 2.4 in 18.7 oz 440 n Feb 2010 699iCanon T2i
 
Leica C-LUX« » 4.4 in 2.6 in 1.8 in 12.0 oz 370 n Jun 2018 1,049 iLeica C-LUX
 
Panasonic FZ1000 II« » 5.4 in 3.8 in 5.2 in 28.6 oz 350 n Feb 2019 899 iPanasonic FZ1000 II
 
Panasonic ZS200« » 4.4 in 2.6 in 1.8 in 12.0 oz 370 n Feb 2018 799 iPanasonic ZS200
 
Sony ZV-1« » 4.1 in 2.4 in 1.7 in 10.4 oz 260 n May 2020 799 iSony ZV-1
 
Sony RX100 VI« » 4.0 in 2.3 in 1.7 in 10.6 oz 240 n Jun 2018 1,199iSony RX100 VI
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 retail prices at the time of the camera’s release place the model in the market relative to other models in the producer’s line-up and the competition. The G7X Mark III was launched at a lower price than the T4i, 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. 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. 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. 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 tend to be associated with larger, more expensive camera bodies and lenses.

Of the two cameras under consideration, the Canon G7 X Mark III features an one-inch sensor and the Canon T4i an APS-C sensor. The sensor area in the T4i is 186 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.7 and 1.6. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

In terms of chip-set technology, the G7X Mark III uses a more advanced image processing engine (DIGIC 8) than the T4i (DIGIC 5), with benefits for noise reduction, color accuracy, and processing speed.

Canon G7 X Mark III and Canon T4i sensor measures

Despite having a smaller sensor, the Canon G7 X Mark III offers a higher resolution of 20 megapixels, compared with 17.9 MP of the Canon T4i. 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 2.41μm versus 4.31μm for the T4i). However, it should be noted that the G7X Mark III is much more recent (by 7 years and 1 month) than the T4i, 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 G7 X Mark III implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the G7X Mark III for good quality output (200 dots per inch) amounts to 27.4 x 18.2 inch or 69.5 x 46.3 cm, for very good quality (250 dpi) 21.9 x 14.6 inch or 55.6 x 37.1 cm, and for excellent quality (300 dpi) 18.2 x 12.2 inch or 46.3 x 30.9 cm. The corresponding values for the Canon T4i are 25.9 x 17.3 inch or 65.8 x 43.9 cm for good quality, 20.7 x 13.8 inch or 52.7 x 35.1 cm for very good quality, and 17.3 x 11.5 inch or 43.9 x 29.3 cm for excellent quality prints.

The T4i has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Canon PowerShot G7 X Mark III has a native sensitivity range from ISO 125 to ISO 12800, which can be extended to ISO 125-25600. The corresponding ISO settings for the Canon EOS Rebel T4i are ISO 100 to ISO 12800, with the possibility to increase the ISO range to 100-25600.

G7X Mark III versus T4i 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. 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 G7 X Mark III 1-inch 20.0 5472 36484K/30p........Canon G7 X Mark III
 
Canon T4i APS-C 17.9 5184 34561080/30p21.711.272262Canon T4i
 
Canon G5 X Mark II 1-inch 20.0 5472 36484K/30p........Canon G5 X Mark II
 
Canon SX740 1/2.3 20.2 5184 38884K/30p........Canon SX740
 
Canon G7 X Mark II 1-inch 20.0 5472 36481080/60p........Canon G7 X Mark II
 
Canon G5 X 1-inch 20.0 5472 36481080/60p........Canon G5 X
 
Canon T6s APS-C 24.0 6000 40001080/30p22.612.091570Canon T6s
 
Canon G7 X 1-inch 20.0 5472 36481080/60p23.012.755671Canon G7 X
 
Canon T5 APS-C 17.9 5184 34561080/30p21.911.372463Canon T5
 
Canon T5i APS-C 17.9 5184 34561080/30p21.711.268161Canon T5i
 
Canon T3i APS-C 17.9 5184 34561080/30p22.111.579365Canon T3i
 
Canon T2i APS-C 17.9 5184 34561080/30p22.111.578466Canon T2i
 
Leica C-LUX 1-inch 20.0 5472 36484K/30p........Leica C-LUX
 
Panasonic FZ1000 II 1-inch 20.0 5472 36484K/30p........Panasonic FZ1000 II
 
Panasonic ZS200 1-inch 20.0 5472 36484K/30p........Panasonic ZS200
 
Sony ZV-1 1-inch 20.0 5472 36484K/30p........Sony ZV-1
 
Sony RX100 VI 1-inch 20.0 5472 36484K/30p........Sony RX100 VI

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 G7X Mark III provides a higher video resolution than the T4i. It can shoot video footage at 4K/30p, while the T4i is limited to 1080/30p.

 

Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. For example, the T4i has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the G7X Mark III relies on live view and the rear LCD for framing. The table below summarizes some of the other core capabilities of the Canon G7 X Mark III and Canon T4i in connection with corresponding information for a sample of similar cameras.

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 G7 X Mark IIInone n 3.0 1040 tilting Y 1/2000s 30 Y Y Canon G7 X Mark III
 
Canon T4ioptical n 3.0 1040 swivel Y 1/4000s 5.0 Y n Canon T4i
 
Canon G5 X Mark II2360 n 3.0 1040 tilting Y 1/2000s 30 Y Y Canon G5 X Mark II
 
Canon SX740none n 3.0 922 tilting n 1/3200s 10.0 Y Y Canon SX740
 
Canon G7 X Mark IInone n 3.0 1040 tilting Y 1/2000s 8.0 Y Y Canon G7 X Mark II
 
Canon G5 X2360 n 3.0 1040 swivel Y 1/2000s 5.9 Y Y Canon G5 X
 
Canon T6soptical Y 3.0 1040 swivel Y 1/4000s 5.0 Y n Canon T6s
 
Canon G7 Xnone n 3.0 1040 tilting Y 1/2000s 6.5 Y Y Canon G7 X
 
Canon T5optical n 3.0 460 fixed n 1/4000s 3.0 Y n Canon T5
 
Canon T5ioptical n 3.0 1040 swivel Y 1/4000s 5.0 Y n Canon T5i
 
Canon T3ioptical n 3.0 1040 swivel n 1/4000s 3.7 Y n Canon T3i
 
Canon T2ioptical n 3.0 1040 fixed n 1/4000s 3.7 Y n Canon T2i
 
Leica C-LUX2330 n 3.0 1240 fixed Y 1/2000s 10.0 Y Y Leica C-LUX
 
Panasonic FZ1000 II2360 n 3.0 1240 swivel Y 1/4000s 12.0 Y Y Panasonic FZ1000 II
 
Panasonic ZS2002330 n 3.0 1240 fixed Y 1/2000s 10.0 Y Y Panasonic ZS200
 
Sony ZV-1none n 3.0 922 swivel Y 1/2000s 24.0 n Y Sony ZV-1
 
Sony RX100 VI2359 n 3.0 1229 tilting Y 1/2000s 24.0 Y Y Sony RX100 VI
Both cameras have an articulated rear screen that can be turned to be front-facing. This feature will be particularly appreciated by vloggers and photographers who are interested in taking selfies.

The reported shutter speed information refers to the use of the mechanical shutter. Yet, some cameras only have an electronic shutter, while others have an electronic shutter in addition to a mechanical one. In fact, the G7X Mark III is one of those camera that have an additional electronic shutter, which makes completely silent shooting possible. However, this mode is less suitable for photographing moving objects (risk of rolling shutter) or shooting under artificial light sources (risk of flickering).

The Canon G7 X Mark III 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.

Concerning the storage of imaging data, both the G7X Mark III and the T4i write their files to SDXC cards. Both cameras can use UHS-I cards, which provide for Ultra High Speed data transfer of up to 104 MB/s.

 

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 PowerShot G7 X Mark III and Canon EOS Rebel T4i 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 G7 X Mark III-stereomonoY-micro3.1Y-YCanon G7 X Mark III
 
Canon T4iYstereomonoY-mini2.0---Canon T4i
 
Canon G5 X Mark II-stereomono--micro3.1Y-YCanon G5 X Mark II
 
Canon SX740-stereomono--micro2.0YYYCanon SX740
 
Canon G7 X Mark II-stereomono--micro2.0YY-Canon G7 X Mark II
 
Canon G5 XYstereomono--mini2.0YY-Canon G5 X
 
Canon T6sYstereomonoY-mini2.0YY-Canon T6s
 
Canon G7 X-stereomono--micro2.0YY-Canon G7 X
 
Canon T5Ymonomono--mini2.0---Canon T5
 
Canon T5iYstereomonoY-mini2.0---Canon T5i
 
Canon T3iYmonomonoY-mini2.0---Canon T3i
 
Canon T2iYstereononeY-mini2.0---Canon T2i
 
Leica C-LUX-stereomono--micro2.0Y--Leica C-LUX
 
Panasonic FZ1000 IIYstereomonoY-micro2.0Y-YPanasonic FZ1000 II
 
Panasonic ZS200-stereomono--micro2.0Y-YPanasonic ZS200
 
Sony ZV-1YstereomonoY-micro2.0YYYSony ZV-1
 
Sony RX100 VI-stereomono--micro2.0YYYSony RX100 VI

It is notable that the G7X Mark III offers wifi support, while the T4i does not. Wifi can be a very convenient means to transfer image data to an off-camera location.

The G7X Mark III is a recent model that features in the current product line-up of Canon. In contrast, the T4i has been discontinued (but it can be found pre-owned on eBay). As a replacement in the same line of cameras, the T4i was succeeded by the Canon T5i. 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 conclusions can be drawn? Is the Canon G7 X Mark III better than the Canon T4i or vice versa? A synthesis of the relative strong points of each of the models is listed below.


Reasons to prefer the Canon PowerShot G7 X Mark III:

  • More detail: Offers more megapixels (20 vs 17.9MP) with a 6% higher linear resolution.
  • Better jpgs: Has a more modern image processing engine (DIGIC 8 vs DIGIC 5).
  • Better video: Provides higher definition movie capture (4K/30p vs 1080/30p).
  • Faster burst: Shoots at higher frequency (30 vs 5 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • Ready to shoot: Comes with a built-in lens, while the T4i requires a separate lens.
  • More compact: Is smaller (105x61mm vs 133x100mm) and thus needs less room in the bag.
  • Less heavy: Is lighter even though it comes with a built-in lens (unlike the T4i).
  • Easier travel charging: Can be conveniently charged via its USB port.
  • Sharper images: Has hand-shake reducing image stabilization built-in.
  • Faster data transfer: Supports a more advanced USB protocol (3.1 vs 2.0).
  • Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • More affordable: Was introduced at a lower price, despite coming with a built-in lens.
  • More modern: Reflects 7 years and 1 month of technical progress since the T4i launch.


Advantages of the Canon EOS Rebel T4i:

  • Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
  • Easier framing: Has an optical viewfinder for image composition and settings control.
  • More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
  • Faster shutter: Has higher mechanical shutter speed (1/4000s vs 1/2000s) to freeze action.
  • More flexible: Makes it possible to change lenses and thus to use specialty optics.
  • Longer lasting: Gets more shots (440 versus 235) out of a single battery charge.
  • Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
  • More heavily discounted: Has been around for much longer (launched in June 2012).

If the number of relative strengths (bullet points above) is taken as a guide, the G7X Mark III is the clear winner of the match-up (15 : 8 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. A professional sports photographer will view the differences between cameras in a way that diverges from the perspective of a street photog, and a person interested in family portraits has distinct needs from a landscape shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

G7X Mark III 15:08 T4i

How about other alternatives? Do the specifications of the Canon G7 X Mark III and the Canon T4i place the cameras among the top in their class? Find out in the latest Best Travel-Zoom Camera and Best DSLR 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 G7X Mark III and the T4i in practical situations. At times, user reviews, such as those published at amazon, address these issues in a useful manner, but such feedback is on many occasions incomplete, inconsistent, and unreliable.

Expert reviews

This is why hands-on reviews by experts are important. The adjacent summary-table relays the overall verdicts of several of the most popular 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 G7 X Mark III+ +81/1004/5.... Jul 2019 749 iCanon G7 X Mark III
 
Canon T4i+ +77/1004.5/54.5/54.5/5 Jun 2012 849iCanon T4i
 
Canon G5 X Mark II+82/100....4/5 Jul 2019 899 iCanon G5 X Mark II
 
Canon SX740+..4/5..4/5 Jul 2018 399 iCanon SX740
 
Canon G7 X Mark II+ +81/1004.5/54/54.5/5 Feb 2016 699iCanon G7 X Mark II
 
Canon G5 X+ +78/1004.5/54/54.5/5 Oct 2015 799iCanon G5 X
 
Canon T6s+77/1004.5/54.5/54.5/5 Feb 2015 649iCanon T6s
 
Canon G7 X+ +77/1004.5/53.5/54.5/5 Sep 2014 699iCanon G7 X
 
Canon T5+..4/54/54.5/5 Feb 2014 449iCanon T5
 
Canon T5i..76/1004.5/54.5/54.5/5 Mar 2013 649iCanon T5i
 
Canon T3io77/1004.5/55/54.5/5 Feb 2011 599iCanon T3i
 
Canon T2i+ +77/1004/55/54.5/5 Feb 2010 699iCanon T2i
 
Leica C-LUX....4.5/5..4/5 Jun 2018 1,049 iLeica C-LUX
 
Panasonic FZ1000 II..83/1004.5/5..4.5/5 Feb 2019 899 iPanasonic FZ1000 II
 
Panasonic ZS200+ +81/1004.5/5..4.5/5 Feb 2018 799 iPanasonic ZS200
 
Sony ZV-1.......... May 2020 799 iSony ZV-1
 
Sony RX100 VI+ +83/1004/5..4.5/5 Jun 2018 1,199iSony RX100 VI
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The review scores listed above should be treated with care, 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 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.

Canon G7 X Mark III:
Check Amazon price
Canon T4i:
Check Ebay offers

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 a corresponding selection in the search boxes below. 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 G7 X Mark III vs Canon T4i

    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 G7 X Mark III Canon T4i
    Camera Type Fixed lens compact camera Digital single lens reflex
    Camera Lens 24-100mm f/1.8-2.8 Canon EF mount lenses
    Launch Date July 2019 June 2012
    Launch Price USD 749 USD 849
    Sensor Specs Canon G7 X Mark III Canon T4i
    Sensor Technology BSI-CMOS CMOS
    Sensor Format 1" Sensor APS-C Sensor
    Sensor Size 13.2 x 8.8 mm 22.3 x 14.9 mm
    Sensor Area 116.16 mm2 332.27 mm2
    Sensor Diagonal 15.9 mm 26.8 mm
    Crop Factor 2.7x 1.6x
    Sensor Resolution 20 Megapixels 17.9 Megapixels
    Image Resolution 5472 x 3648 pixels 5184 x 3456 pixels
    Pixel Pitch 2.41 μm 4.31 μm
    Pixel Density 17.18 MP/cm2 5.39 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability 4K/30p Video 1080/30p Video
    ISO Setting 125-12800 ISO 100-12800 ISO
    ISO Boost 125-25600 ISO 100-25600 ISO
    Image Processor DIGIC 8 DIGIC 5
    DXO Sensor Quality (score) .. 62
    DXO Color Depth (bits) .. 21.7
    DXO Dynamic Range (EV) .. 11.2
    DXO Low Light (ISO) .. 722
    Screen Specs Canon G7 X Mark III Canon T4i
    Viewfinder Type No viewfinder Optical viewfinder
    Viewfinder Field of View 95%
    Viewfinder Magnification 0.53x
    LCD Framing Live View Live View
    Rear LCD Size 3.0 inch 3.0 inch
    LCD Resolution 1040k dots 1040k dots
    LCD Attachment Tilting screen Swivel screen
    Touch Input Touchscreen Touchscreen
    Shooting Specs Canon G7 X Mark III Canon T4i
    Focus System Contrast-detect AF Phase-detect AF
    Manual Focusing AidFocus PeakingNo Peaking Feature
    Continuous Shooting 30 shutter flaps/s 5 shutter flaps/s
    Electronic Shutterup to 1/25600sno E-Shutter
    Time-Lapse PhotographyIntervalometer built-inno Intervalometer
    Fill Flash Build-in Flash Build-in Flash
    Storage Medium SDXC cards SDXC cards
    Second Storage Option Single card slot Single card slot
    UHS card support UHS-I UHS-I
    Connectivity Specs Canon G7 X Mark III Canon T4i
    External Flash no Hotshoe Hotshoe
    USB Connector USB 3.1 USB 2.0
    HDMI Port micro HDMI mini HDMI
    Microphone Port External MIC port External MIC port
    Wifi Support Wifi built-in no Wifi
    Bluetooth Support Bluetooth built-in no Bluetooth
    Body Specs Canon G7 X Mark III Canon T4i
    Battery Type NB-13L LP-E8
    Battery Life (CIPA)235 shots per charge440 shots per charge
    In-Camera Charging USB charging no USB charging
    Body Dimensions 105 x 61 x 41 mm
    (4.1 x 2.4 x 1.6 in)
    133 x 100 x 79 mm
    (5.2 x 3.9 x 3.1 in)
    Camera Weight 304 g (10.7 oz) 575 g (20.3 oz)

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