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Canon G7 X vs Pentax 645D

The Canon PowerShot G7 X and the Pentax 645D are two digital cameras that were revealed to the public, respectively, in September 2014 and March 2010. The G7X is a fixed lens compact, while the 645D is a DSLR. The cameras are based on an one-inch (G7X) and a medium format (645D) sensor. The Canon has a resolution of 20 megapixels, whereas the Pentax provides 39.5 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 versus Pentax 645D
Canon G7 X Pentax 645D
Fixed lens compact camera Digital single lens reflex
24-100mm f/1.8-2.8 Pentax 645 mount lenses
20 MP, 1" Sensor 39.5 MP, Medium Format Sensor
1080/60p Video no Video
ISO 125-12,800 ISO 100-1,600
No viewfinder, LCD framing Optical viewfinder
3.0 LCD, 1040k dots 3.0 LCD, 921k dots
Tilting touchscreen Fixed screen (not touch-sensitive)
6.5 shutter flaps per second 1.1 shutter flaps per second
not weather sealedWeathersealed body
210 shots per battery charge800 shots per battery charge
103 x 60 x 40 mm, 304 g 156 x 117 x 119 mm, 1480 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Canon PowerShot G7 X and the Pentax 645D? 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

An illustration of the physical size and weight of the Canon G7 X and the Pentax 645D is provided 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 size dimensions are rounded to the nearest millimeter.

Size Canon G7 X vs Pentax 645D
Compare G7X versus 645D top
Comparison G7X or 645D rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Pentax 645D is considerably larger (195 percent) than the Canon G7 X. It is noteworthy in this context that the 645D is splash and dust-proof, while the G7X does not feature any corresponding weather-sealing.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the G7X has a lens built in, whereas the 645D is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup.

Concerning battery life, the G7X gets 210 shots out of its NB-13L battery, while the 645D can take 800 images on a single charge of its D-LI90 power pack.

The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. 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
    Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Canon G7 X 103 mm 60 mm 40 mm 304 g 210 n Sep 2014 699i
2.
 
Pentax 645D 156 mm 117 mm 119 mm 1480 g 800 Y Mar 2010 9,995i
3.
 
Canon G7 X Mark III 105 mm 61 mm 41 mm 304 g 235 n Jul 2019 749 i
4.
 
Canon G7 X Mark II 106 mm 61 mm 42 mm 319 g 265 n Feb 2016 699i
5.
 
Canon G5 X 112 mm 76 mm 44 mm 353 g 210 n Oct 2015 799i
6.
 
Canon G9 X 98 mm 58 mm 31 mm 209 g 220 n Oct 2015 529i
7.
 
Canon M3 111 mm 68 mm 44 mm 366 g 250 n Feb 2015 679i
8.
 
Canon M10 108 mm 67 mm 35 mm 301 g 255 n Oct 2015 499i
9.
 
Canon T6i 132 mm 101 mm 78 mm 555 g 440 n Feb 2015 749i
10.
 
Canon 1D X 158 mm 168 mm 83 mm 1551 g 1120 Y Oct 2011 6,799i
11.
 
Canon 1D Mark IV 156 mm 157 mm 80 mm 1230 g 1500 Y Oct 2009 4,999i
12.
 
Leica S Typ 006 160 mm 120 mm 80 mm 1260 g .. Y Sep 2012 21,950i
13.
 
Nikon D3S 160 mm 157 mm 88 mm 1240 g 4200 Y Oct 2009 5,199i
14.
 
Pentax 645Z 156 mm 117 mm 123 mm 1550 g 650 Y Apr 2014 8,499 i
15.
 
Sony RX100 IV 102 mm 58 mm 41 mm 298 g 280 n Jun 2015 999i
16.
 
Sony RX100 III 102 mm 58 mm 41 mm 290 g 320 n May 2014 799i
17.
 
Sony RX100 II 102 mm 58 mm 38 mm 281 g 350 n Jun 2013 749i
Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.

Any camera decision will obviously take relative prices into account. 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 was launched at a lower price than the 645D, 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.

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Sensor comparison

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

Of the two cameras under consideration, the Canon G7 X features an one-inch sensor and the Pentax 645D a medium format sensor. The sensor area in the 645D is 1152 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.7 and 0.79. The sensor in the G7X has a native 3:2 aspect ratio, while the one in the 645D offers a 4:3 aspect.

Canon G7 X and Pentax 645D sensor measures

With 39.5MP, the 645D offers a higher resolution than the G7X (20MP), but the 645D nevertheless has larger individual pixels (pixel pitch of 6.06μm versus 2.41μm for the G7X) due to its larger sensor. However, the G7X is a much more recent model (by 4 years and 6 months) than the 645D, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that the 645D has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Pentax 645D implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the 645D for good quality output (200 dots per inch) amounts to 36.3 x 27.2 inches or 92.3 x 69.1 cm, for very good quality (250 dpi) 29.1 x 21.8 inches or 73.8 x 55.3 cm, and for excellent quality (300 dpi) 24.2 x 18.1 inches or 61.5 x 46.1 cm. The corresponding values for the Canon G7 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 PowerShot G7 X has a native sensitivity range from ISO 125 to ISO 12800. The corresponding ISO settings for the Pentax 645D are ISO 100 to ISO 1600 (no boost).

G7X versus 645D MP

For many cameras, data on sensor performance has been reported by DXO Mark. This service is based on lab testing and assigns an overall score to each camera sensor, as well as ratings for dynamic range ("DXO Landscape"), color depth ("DXO Portrait"), and low-light sensitivity ("DXO Sports"). Of the two cameras under consideration, the 645D offers substantially better image quality than the G7X (overall score 11 points higher). The advantage is based on 1.6 bits higher color depth, 0.1 EV of lower dynamic range, and 1.2 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
    Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Canon G7 X 1-inch 20.0 5472 36481080/60p23.012.755671
2.
 
Pentax 645D Medium Format 39.5 7264 5440none24.612.6126282
3.
 
Canon G7 X Mark III 1-inch 20.0 5472 36484K/30p........
4.
 
Canon G7 X Mark II 1-inch 20.0 5472 36481080/60p........
5.
 
Canon G5 X 1-inch 20.0 5472 36481080/60p........
6.
 
Canon G9 X 1-inch 20.0 5472 36481080/60p21.512.349563
7.
 
Canon M3 APS-C 24.0 6000 40001080/30p22.811.8116972
8.
 
Canon M10 APS-C 17.9 5184 34561080/30p22.211.475365
9.
 
Canon T6i APS-C 24.0 6000 40001080/30p22.712.091971
10.
 
Canon 1D X Full Frame 17.9 5184 34561080/30p23.811.8278682
11.
 
Canon 1D Mark IV APS-H 16.0 4896 32641080/30p22.812.0132074
12.
 
Leica S Typ 006 Medium Format 37.5 7500 5000none23.912.282476
13.
 
Nikon D3S Full Frame 12.1 4256 2832720/24p23.512.0325382
14.
 
Pentax 645Z Medium Format 51.1 8256 61921080/60i26.014.74505101
15.
 
Sony RX100 IV 1-inch 20.0 5472 36484K/30p22.812.659170
16.
 
Sony RX100 III 1-inch 20.0 5472 36481080/60p22.412.349567
17.
 
Sony RX100 II 1-inch 20.0 5472 36481080/60p22.512.448367

Many modern cameras are not only capable of taking still images, but can also record movies. The G7X indeed provides movie recording capabilities, while the 645D does not. The highest resolution format that the G7X can use is 1080/60p.

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Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the 645D has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the G7X 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 and Pentax 645D in connection with corresponding information for a sample of similar cameras.

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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
1.
 
Canon G7 Xnone n 3.0 1040 tilting Y 1/2000s 6.5 Y Y
2.
 
Pentax 645Doptical Y 3.0 921 fixed n 1/4000s 1.1 n n
3.
 
Canon G7 X Mark IIInone n 3.0 1040 tilting Y 1/2000s 30 Y Y
4.
 
Canon G7 X Mark IInone n 3.0 1040 tilting Y 1/2000s 8.0 Y Y
5.
 
Canon G5 X2360 n 3.0 1040 swivel Y 1/2000s 5.9 Y Y
6.
 
Canon G9 Xnone n 3.0 1040 fixed Y 1/2000s 6.0 Y Y
7.
 
Canon M3optional n 3.0 1040 tilting Y 1/4000s 4.2 Y n
8.
 
Canon M10none n 3.0 1040 tilting Y 1/4000s 4.6 Y n
9.
 
Canon T6ioptical n 3.0 1040 swivel Y 1/4000s 5.0 Y n
10.
 
Canon 1D Xoptical Y 3.2 1040 fixed n 1/8000s 14.0 n n
11.
 
Canon 1D Mark IVoptical Y 3.0 920 fixed n 1/8000s 10.0 n n
12.
 
Leica S Typ 006optical Y 3.0 922 fixed n 1/4000s 1.5 n n
13.
 
Nikon D3Soptical Y 3.0 921 fixed n 1/8000s 11.0 n n
14.
 
Pentax 645Zoptical Y 3.2 1037 tilting n 1/4000s 3.0 n n
15.
 
Sony RX100 IV2359 n 3.0 1228 tilting n 1/2000s 16.0 Y Y
16.
 
Sony RX100 III1440 n 3.0 1229 tilting n 1/2000s 10.0 Y Y
17.
 
Sony RX100 IIoptional n 3.0 1229 tilting n 1/2000s 10.0 Y Y

One difference between the cameras concerns the presence of an on-board flash. The G7X has one, while the 645D does not. While the built-in flash of the G7X is not very powerful, it can at times be useful as a fill-in light.

The G7X has an articulated LCD that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in snapping selfies. In contrast, the 645D does not have a selfie-screen.

The Canon G7 X and the Pentax 645D both have 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 and the 645D write their files to SDXC cards. The 645D features dual card slots, which can be very useful in case a memory card fails. In contrast, the G7X only has one slot. The G7X supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the 645D 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 PowerShot G7 X and Pentax 645D and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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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
1.
 
Canon G7 X-stereomono--micro2.0YY-
2.
 
Pentax 645DYstereo----2.0---
3.
 
Canon G7 X Mark III-stereomonoY-micro3.1Y-Y
4.
 
Canon G7 X Mark II-stereomono--micro2.0YY-
5.
 
Canon G5 XYstereomono--mini2.0YY-
6.
 
Canon G9 X-stereomono--micro2.0YY-
7.
 
Canon M3YstereomonoY-mini2.0YY-
8.
 
Canon M10-stereomono--mini2.0YY-
9.
 
Canon T6iYstereomonoY-mini2.0YY-
10.
 
Canon 1D XYmono-Y-mini2.0---
11.
 
Canon 1D Mark IVYstereo-Y-mini2.0---
12.
 
Leica S Typ 006Y----mini2.0---
13.
 
Nikon D3SYstereo---mini2.0---
14.
 
Pentax 645ZYstereomonoY-mini3.0---
15.
 
Sony RX100 IV-stereomono--micro2.0YY-
16.
 
Sony RX100 III-stereomono--micro2.0YY-
17.
 
Sony RX100 IIYstereomono--micro2.0YY-

It is notable that the G7X offers wifi support, while the 645D does not. Wifi can be a very convenient means to transfer image data to an off-camera location.

Studio photographers will appreciate that the Pentax 645D (unlike the G7X) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the G7X and the 645D have been discontinued, but can regularly be found used on eBay. The 645D was replaced by the Pentax 645Z, while the G7X was followed by the Canon G7 X 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 and Pentax websites.

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Review summary

So what is the bottom line? Is there a clear favorite between the Canon G7 X and the Pentax 645D? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.

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Reasons to prefer the Canon PowerShot G7 X:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Broader imaging potential: Can record not only still images but also 1080/60p movies.
  • More detailed LCD: Has a higher resolution rear screen (1040k vs 921k dots).
  • More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
  • Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • Faster burst: Shoots at higher frequency (6.5 vs 1.1 flaps/sec) to capture the decisive moment.
  • Ready to shoot: Comes with a built-in lens, while the 645D requires a separate lens.
  • More compact: Is smaller (103x60mm vs 156x117mm) and thus needs less room in the bag.
  • Less heavy: Is lighter even though it comes with a built-in lens (unlike the 645D).
  • Sharper images: Has hand-shake reducing image stabilization built-in.
  • Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
  • 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 4 years and 6 months of technical progress since the 645D launch.

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Advantages of the Pentax 645D:

  • More detail: Has more megapixels (39.5 vs 20MP), which boosts linear resolution by 38%.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Better image quality: Scores substantially higher (11 points) in the DXO overall evaluation.
  • Richer colors: Generates noticeably more natural colors (1.6 bits more color depth).
  • Better low-light sensitivity: Can shoot in dim conditions (1.2 stops ISO advantage).
  • Easier framing: Has an optical viewfinder for image composition and settings control.
  • Easier setting verification: Features a control panel on top to check shooting parameters.
  • 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 (800 versus 210) out of a single battery charge.
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
  • Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
  • 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 around for much longer (launched in March 2010).

If the count of relative strengths (bullet points above) is taken as a measure, the G7X emerges as the winner of the contest (17 : 15 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.

G7X 17:15 645D

How about other alternatives? Do the specifications of the Canon G7 X and the Pentax 645D 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 comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it says little about, for example, the shooting experience and imaging performance of the G7X and the 645D 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 why hands-on reviews by experts are important. The following table reports the overall ratings of the cameras as published by some of the major camera review sites (amateurphotographer [AP], cameralabs [CL], 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
     Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Canon G7 X4/5+ +77/1004.5/54.5/5 Sep 2014 699i
2.
 
Pentax 645D5/5........ Mar 2010 9,995i
3.
 
Canon G7 X Mark III..+ +81/1004/5.. Jul 2019 749 i
4.
 
Canon G7 X Mark II4.5/5+ +81/1004.5/54.5/5 Feb 2016 699i
5.
 
Canon G5 X5/5+ +78/1004.5/54.5/5 Oct 2015 799i
6.
 
Canon G9 X3.5/5+ +..4.5/54.5/5 Oct 2015 529i
7.
 
Canon M34/5o75/1004.5/54/5 Feb 2015 679i
8.
 
Canon M10........4/5 Oct 2015 499i
9.
 
Canon T6i5/5..75/1004.5/54.5/5 Feb 2015 749i
10.
 
Canon 1D X5/5....4.5/54.5/5 Oct 2011 6,799i
11.
 
Canon 1D Mark IV5/5..89/100.... Oct 2009 4,999i
12.
 
Leica S Typ 006.......... Sep 2012 21,950i
13.
 
Nikon D3S5/5..89/1004.5/55/5 Oct 2009 5,199i
14.
 
Pentax 645Z5/5....4.5/55/5 Apr 2014 8,499 i
15.
 
Sony RX100 IV4.5/5+ +85/1004/54.5/5 Jun 2015 999i
16.
 
Sony RX100 III5/5+ +82/1004.5/55/5 May 2014 799i
17.
 
Sony RX100 II5/5+ +79/1004.5/54.5/5 Jun 2013 749i
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

Care should be taken when interpreting the review scores above, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. 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:
Check Ebay offers
Pentax 645D:
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 your choice using the following search menu. 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 G7 X vs Pentax 645D

    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 Pentax 645D
    Camera Type Fixed lens compact camera Digital single lens reflex
    Camera Lens 24-100mm f/1.8-2.8 Pentax 645 mount lenses
    Launch Date September 2014 March 2010
    Launch Price USD 699 USD 9,995
    Sensor Specs Canon G7 X Pentax 645D
    Sensor Technology BSI-CMOS CCD
    Sensor Format 1" Sensor Medium Format Sensor
    Sensor Size 13.2 x 8.8 mm 44.0 x 33.0 mm
    Sensor Area 116.16 mm2 1452 mm2
    Sensor Diagonal 15.9 mm 55 mm
    Crop Factor 2.7x 0.79x
    Sensor Resolution 20 Megapixels 39.5 Megapixels
    Image Resolution 5472 x 3648 pixels 7264 x 5440 pixels
    Pixel Pitch 2.41 μm 6.06 μm
    Pixel Density 17.18 MP/cm2 2.72 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability 1080/60p Video no Video
    ISO Setting 125 - 12,800 ISO 100 - 1,600 ISO
    Image Processor DIGIC 6 PRIME II
    DXO Sensor Quality (score) 71 82
    DXO Color Depth (bits) 23.0 24.6
    DXO Dynamic Range (EV) 12.7 12.6
    DXO Low Light (ISO) 556 1262
    Screen Specs Canon G7 X Pentax 645D
    Viewfinder Type no viewfinder Optical viewfinder
    Viewfinder Field of View 98%
    Viewfinder Magnification 0.78x
    Top-Level Screen no Top Display Control Panel
    LCD Framing Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 1040k dots 921k dots
    LCD Attachment Tilting screen Fixed screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Canon G7 X Pentax 645D
    Focus System Contrast-detect AF Phase-detect AF
    Manual Focusing AidFocus Peakingno Peaking Feature
    Continuous Shooting 6.5 shutter flaps/s 1.1 shutter flaps/s
    Time-Lapse PhotographyIntervalometer built-inIntervalometer built-in
    Fill Flash Build-in Flash no On-Board Flash
    Storage Medium SDXC cards SDXC cards
    Second Storage Option Single card slot Dual card slots
    UHS card support UHS-I no
    Connectivity Specs Canon G7 X Pentax 645D
    External Flash no Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 2.0
    HDMI Port micro HDMI no HDMI
    Wifi Support Wifi built-in no Wifi
    Near-Field Communication NFC built-in no NFC
    Body Specs Canon G7 X Pentax 645D
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type NB-13L D-LI90
    Battery Life (CIPA)210 shots per charge800 shots per charge
    Body Dimensions 103 x 60 x 40 mm
    (4.1 x 2.4 x 1.6 in)
    156 x 117 x 119 mm
    (6.1 x 4.6 x 4.7 in)
    Camera Weight 304 g (10.7 oz) 1480 g (52.2 oz)

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