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Canon G9 X vs Pentax 645Z

The Canon PowerShot G9 X and the Pentax 645Z are two digital cameras that were officially introduced, respectively, in October 2015 and April 2014. The G9X is a fixed lens compact, while the 645Z is a DSLR. The cameras are based on an one-inch (G9X) and a medium format (645Z) sensor. The Canon has a resolution of 20 megapixels, whereas the Pentax provides 51.1 MP.

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

Headline Specifications
Canon G9 X
versus
Pentax 645Z
Canon G9 X   Pentax 645Z
Fixed lens compact camera Digital single lens reflex
28-84mm f/2.0-4.9 Pentax 645 mount lenses
20 MP – 1" sensor 51.1 MP – Medium Format sensor
1080/60p Video 1080/60i Video
ISO 125-12,800 ISO 100-204,800
No viewfinder, LCD framing Optical viewfinder
3.0" LCD – 1040k dots 3.2" LCD – 1037k dots
Fixed touchscreen Tilting screen (no touchscreen)
6 shutter flaps per second 3 shutter flaps per second
not weather sealedWeathersealed body
220 shots per battery charge650 shots per battery charge
98 x 58 x 31 mm, 209 g 156 x 117 x 123 mm, 1550 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Canon PowerShot G9 X and the Pentax 645Z? 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 G9 X and the Pentax 645Z 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 width, height and depth dimensions are rounded to the nearest millimeter.

The G9X can be obtained in two different colors (black, silver), while the 645Z is only available in black.

Size Canon G9 X vs Pentax 645Z
Compare G9X versus 645Z top
Comparison G9X or 645Z rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Pentax 645Z is considerably larger (221 percent) than the Canon G9 X. It is noteworthy in this context that the 645Z is splash and dust-proof, while the G9X does not feature any corresponding weather-sealing.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the G9X has a lens built in, whereas the 645Z 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 G9X gets 220 shots out of its Canon NB-13L battery, while the 645Z can take 650 images on a single charge of its Pentax D-LI90 power pack. The power pack in the G9X can be charged via the USB port, so that it is not always necessary to take the battery charger along when travelling.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. If you would like to visualize and compare a different camera combination, you can navigate to the CAM-parator app and make your selection from a broad list of cameras there.

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Body Specifications
  empty Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Canon G9 X 98 mm 58 mm 31 mm 209 g 220 n Oct 2015 529ebay.com
2.
 
Pentax 645Z 156 mm 117 mm 123 mm 1550 g 650 Y Apr 2014 8,499ebay.com
3.
 
Canon 5DS 152 mm 116 mm 76 mm 930 g 700 Y Feb 2015 3,699ebay.com
4.
 
Canon 5DS R 152 mm 116 mm 76 mm 930 g 700 Y Feb 2015 3,699ebay.com
5.
 
Canon G5 X 112 mm 76 mm 44 mm 353 g 210 n Oct 2015 799ebay.com
6.
 
Canon G7 X 103 mm 60 mm 40 mm 304 g 210 n Sep 2014 699ebay.com
7.
 
Canon G7 X Mark II 106 mm 61 mm 42 mm 319 g 265 n Feb 2016 699ebay.com
8.
 
Canon G9 X Mark II 98 mm 58 mm 31 mm 206 g 235 n Jan 2017 529ebay.com
9.
 
Canon M10 108 mm 67 mm 35 mm 301 g 255 n Oct 2015 499ebay.com
10.
 
Hasselblad X1D 150 mm 98 mm 71 mm 725 g .. Y Jun 2016 8,995ebay.com
11.
 
Leica SL 147 mm 104 mm 39 mm 847 g 400 Y Oct 2015 7,450ebay.com
12.
 
Nikon 1 J4 100 mm 60 mm 29 mm 232 g 300 n Apr 2014 549ebay.com
13.
 
Panasonic FZ1000 137 mm 99 mm 131 mm 831 g 360 n Jun 2014 899ebay.com
14.
 
Pentax 645D 156 mm 117 mm 119 mm 1480 g 800 Y Mar 2010 9,995ebay.com
15.
 
Sony RX100 102 mm 58 mm 36 mm 240 g 330 n Jun 2012 649ebay.com
16.
 
Sony RX100 III 102 mm 58 mm 41 mm 290 g 320 n May 2014 799ebay.com
17.
 
Sony RX100 IV 102 mm 58 mm 41 mm 298 g 280 n Jun 2015 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 obviously take relative prices into account. The manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The G9X was launched at a lower price than the 645Z, 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. 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 G9 X features an one-inch sensor and the Pentax 645Z a medium format sensor. The sensor area in the 645Z is 1139 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 G9X has a native 3:2 aspect ratio, while the one in the 645Z offers a 4:3 aspect.

Canon G9 X and Pentax 645Z sensor measures

With 51.1MP, the 645Z offers a higher resolution than the G9X (20MP), but the 645Z nevertheless has larger individual pixels (pixel pitch of 5.30μm versus 2.41μm for the G9X) due to its larger sensor. However, the G9X is a somewhat more recent model (by 1 year and 5 months) than the 645Z, and its sensor might 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 645Z has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Pentax 645Z implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the 645Z for good quality output (200 dots per inch) amounts to 41.3 x 31 inches or 104.9 x 78.6 cm, for very good quality (250 dpi) 33 x 24.8 inches or 83.9 x 62.9 cm, and for excellent quality (300 dpi) 27.5 x 20.6 inches or 69.9 x 52.4 cm. The corresponding values for the Canon G9 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 G9 X has a native sensitivity range from ISO 125 to ISO 12800. The corresponding ISO settings for the Pentax 645Z are ISO 100 to ISO 204800 (no boost).

In terms of underlying technology, the G9X is build around a BSI-CMOS sensor, while the 645Z uses a 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.

G9X versus 645Z MP

Consistent information on actual sensor performance is available from DXO Mark for many cameras. This service assesses and scores the color depth ("DXO Portrait"), dynamic range ("DXO Landscape"), and low-light sensitivity ("DXO Sports") of camera sensors, and also publishes an overall camera score. Of the two cameras under consideration, the 645Z offers substantially better image quality than the G9X (overall score 38 points higher). The advantage is based on 4.5 bits higher color depth, 2.4 EV in additional dynamic range, and 3.2 stops in additional low light sensitivity. The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-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 G9 X 1-inch 20.0 5472 36481080/60p21.512.349563
2.
 
Pentax 645Z Medium Format 51.1 8256 61921080/60i26.014.74505101
3.
 
Canon 5DS Full Frame 50.3 8688 57921080/30p24.712.4238187
4.
 
Canon 5DS R Full Frame 50.3 8688 57921080/30p24.612.4230886
5.
 
Canon G5 X 1-inch 20.0 5472 36481080/60p21.412.347162
6.
 
Canon G7 X 1-inch 20.0 5472 36481080/60p23.012.755671
7.
 
Canon G7 X Mark II 1-inch 20.0 5472 36481080/60p21.811.926062
8.
 
Canon G9 X Mark II 1-inch 20.0 5472 36481080/60p21.912.552265
9.
 
Canon M10 APS-C 17.9 5184 34561080/30p22.211.475365
10.
 
Hasselblad X1D Medium Format 51.3 8272 62001080/25p26.214.84489102
11.
 
Leica SL Full Frame 24.0 6000 40004K/30p25.013.4182188
12.
 
Nikon 1 J4 1-inch 18.2 5232 34881080/60p20.810.742653
13.
 
Panasonic FZ1000 1-inch 20.0 5472 36484K/30p22.111.751764
14.
 
Pentax 645D Medium Format 39.5 7264 5440none24.612.6126282
15.
 
Sony RX100 1-inch 20.0 5472 36481080/60p22.612.439066
16.
 
Sony RX100 III 1-inch 20.0 5472 36481080/60p22.412.349567
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 can also record movies. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the G9X provides a higher frame rate than the 645Z. It can shoot video footage at 1080/60p, while the Pentax is limited to 1080/60i.

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Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. For example, the 645Z has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the G9X relies on live view and the rear LCD for framing. The adjacent table lists some of the other core features of the Canon G9 X and Pentax 645Z 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 G9 Xnone n3.0 / 1040 fixed Y 1/2000s 6.0/s Y Y
2.
 
Pentax 645Zoptical Y3.2 / 1037 tilting n 1/4000s 3.0/s n n
3.
 
Canon 5DSoptical Y3.2 / 1040 fixed n 1/8000s 5.0/s n n
4.
 
Canon 5DS Roptical Y3.2 / 1040 fixed n 1/8000s 5.0/s n n
5.
 
Canon G5 X2360 n3.0 / 1040 swivel Y 1/2000s 5.9/s Y Y
6.
 
Canon G7 Xnone n3.0 / 1040 tilting Y 1/2000s 6.5/s Y Y
7.
 
Canon G7 X Mark IInone n3.0 / 1040 tilting Y 1/2000s 8.0/s Y Y
8.
 
Canon G9 X Mark IInone n3.0 / 1040 fixed Y 1/2000s 8.2/s Y Y
9.
 
Canon M10none n3.0 / 1040 tilting Y 1/4000s 4.6/s Y n
10.
 
Hasselblad X1D2360 n3.0 / 920 fixed Y 1/2000s 2.3/s n n
11.
 
Leica SL4400 Y3.0 / 1040 fixed Y 1/8000s 11.0/s n n
12.
 
Nikon 1 J4none n3.0 / 1037 Fixed Y 1/4000s 60.0/s Y n
13.
 
Panasonic FZ10002359 n3.0 / 921 swivel n 1/4000s 12.0/s Y Y
14.
 
Pentax 645Doptical Y3.0 / 921 fixed n 1/4000s 1.1/s n n
15.
 
Sony RX100none n3.0 / 1229 fixed n 1/2000s 10.0/s Y Y
16.
 
Sony RX100 III1440 n3.0 / 1229 tilting n 1/2000s 10.0/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 difference between the cameras concerns the presence of an on-board flash. The G9X has one, while the 645Z does not. While the built-in flash of the G9X is not very powerful, it can at times be useful as a fill-in light.

The Canon G9 X and the Pentax 645Z 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 G9X and the 645Z write their files to SDXC cards. The 645Z features dual card slots, which can be very useful in case a memory card fails. In contrast, the G9X only has one slot. Both cameras can use UHS-I cards, which provide for Ultra High Speed data transfer of up to 104 MB/s.

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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 G9 X and Pentax 645Z 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 G9 X-stereo / mono--micro2.0YY-
2.
 
Pentax 645ZYstereo / monoY-mini3.0---
3.
 
Canon 5DSYmono / monoY-mini3.0---
4.
 
Canon 5DS RYmono / monoY-mini3.0---
5.
 
Canon G5 XYstereo / mono--mini2.0YY-
6.
 
Canon G7 X-stereo / mono--micro2.0YY-
7.
 
Canon G7 X Mark II-stereo / mono--micro2.0YY-
8.
 
Canon G9 X Mark II-stereo / mono--micro2.0YYY
9.
 
Canon M10-stereo / mono--mini2.0YY-
10.
 
Hasselblad X1DYstereo / monoYYmini3.0Y--
11.
 
Leica SLYstereo / monoYYfull3.0Y--
12.
 
Nikon 1 J4-stereo / mono--mini2.0Y--
13.
 
Panasonic FZ1000Ystereo / monoY-micro2.0YY-
14.
 
Pentax 645DYstereo / ----2.0---
15.
 
Sony RX100-stereo / mono--micro2.0---
16.
 
Sony RX100 III-stereo / mono--micro2.0YY-
17.
 
Sony RX100 IV-stereo / mono--micro2.0YY-

It is notable that the G9X offers wifi support, while the 645Z 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 645Z (unlike the G9X) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the G9X and the 645Z have been discontinued, but can regularly be found used on ebay. The G9X was replaced by the Canon G9 X Mark II, while the 645Z does not have a direct successor. Further information on the features and operation of the G9X and 645Z can be found, respectively, in the Canon G9 X Manual (free pdf) or the online Pentax 645Z Manual.

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Review summary

So how do things add up? Which of the two cameras – the Canon G9 X or the Pentax 645Z – has the upper hand? Is one clearly better than the other? The listing below highlights the relative strengths of the two models.

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Arguments in favor of the Canon PowerShot G9 X:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Better video: Provides higher movie framerates (1080/60p versus 1080/60i).
  • Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
  • Faster burst: Shoots at higher frequency (6 vs 3 flaps/sec) to capture the decisive moment.
  • Ready to shoot: Comes with a built-in lens, while the 645Z requires a separate lens.
  • More compact: Is smaller (98x58mm 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 645Z).
  • Easier travel charging: Can be conveniently charged via its USB port.
  • 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.
  • More affordable: Was introduced at a lower price, despite coming with a built-in lens.
  • More modern: Is somewhat more recent (announced 1 year and 5 months after the 645Z).

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Advantages of the Pentax 645Z:

  • More detail: Has more megapixels (51.1 vs 20MP), which boosts linear resolution by 57%.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Better image quality: Scores substantially higher (38 points) in the DXO overall evaluation.
  • Richer colors: Generates noticeably more natural colors (4.5 bits more color depth).
  • More dynamic range: Captures a broader range of light and dark details (2.4 EV of extra DR).
  • Better low-light sensitivity: Can shoot in dim conditions (3.2 stops ISO advantage).
  • Better sound: Can connect to an external microphone for higher quality sound recording.
  • 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.
  • Larger screen: Has a bigger rear LCD (3.2" vs 3.0") for image review and settings control.
  • More flexible LCD: Has a tilting screen for odd-angle shots in 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 (650 versus 220) 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.
  • Faster data transfer: Supports a more advanced USB protocol (3.0 vs 2.0).
  • 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 on the market for longer (launched in April 2014).

If the number of relative strengths (bullet points above) is taken as a guide, the 645Z is the clear winner of the contest (20 : 14 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 wedding photographer will view the differences between cameras in a way that diverges from the perspective of a travel photog, and a person interested in cityscapes has distinct needs from a macro shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

G9X 14:20 645Z

How about other alternatives? Do the specifications of the Canon G9 X and the Pentax 645Z 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 technical specifications can provide a useful overview of the capabilities of different cameras, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the G9X or the 645Z. 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 expert reviews are important. The adjacent summary-table relays the overall verdicts of several of the most popular 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 (USD)
Street
Price
1.
 
Canon G9 X3.5/5+ +....4.5/54.5/5 Oct 2015 529ebay.com
2.
 
Pentax 645Z5/5..3.5/5..4.5/55/5 Apr 2014 8,499ebay.com
3.
 
Canon 5DS..+..83/1004.5/54.5/5 Feb 2015 3,699ebay.com
4.
 
Canon 5DS R5/5+..83/1005/54.5/5 Feb 2015 3,699ebay.com
5.
 
Canon G5 X5/5+ +..78/1004.5/54.5/5 Oct 2015 799ebay.com
6.
 
Canon G7 X4/5+ +..77/1004.5/54.5/5 Sep 2014 699ebay.com
7.
 
Canon G7 X Mark II4.5/5+ +..81/1004.5/54.5/5 Feb 2016 699ebay.com
8.
 
Canon G9 X Mark II4/5..4/575/1004.5/54.5/5 Jan 2017 529ebay.com
9.
 
Canon M10..........4/5 Oct 2015 499ebay.com
10.
 
Hasselblad X1D..o..81/100..4/5 Jun 2016 8,995ebay.com
11.
 
Leica SL4/5..4/584/1004.5/54/5 Oct 2015 7,450ebay.com
12.
 
Nikon 1 J43/5......4.5/54/5 Apr 2014 549ebay.com
13.
 
Panasonic FZ10004/5+ +..82/1004.5/54.5/5 Jun 2014 899ebay.com
14.
 
Pentax 645D5/5.......... Mar 2010 9,995ebay.com
15.
 
Sony RX1005/5+ +..78/1004/55/5 Jun 2012 649ebay.com
16.
 
Sony RX100 III5/5+ +..82/1004.5/55/5 May 2014 799ebay.com
17.
 
Sony RX100 IV4.5/5+ +..85/1004/54.5/5 Jun 2015 999ebay.com
Note: (+ +) 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 comparisons of ratings among very different cameras or across long time periods have little meaning. Also, please note that some of the review sites have changed their methodology and reporting over time.

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Other camera comparisons

Did this review help to inform your camera decision process? In case you would like to check on the differences and similarities of other camera models, just use the search menu below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Canon G9 X vs Pentax 645Z

    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 G9 X Pentax 645Z
    Camera Type Fixed lens compact camera Digital single lens reflex
    Camera Lens 28-84mm f/2.0-4.9 Pentax 645 mount lenses
    Launch Date October 2015 April 2014
    Launch Price USD 529 USD 8,499
    Sensor Specs Canon G9 X Pentax 645Z
    Sensor Technology BSI-CMOS CMOS
    Sensor Format 1" Sensor Medium Format Sensor
    Sensor Size 13.2 x 8.8 mm 43.8 x 32.8 mm
    Sensor Area 116.16 mm2 1436.64 mm2
    Sensor Diagonal 15.9 mm 54.7 mm
    Crop Factor 2.7x 0.79x
    Sensor Resolution 20 Megapixels 51.1 Megapixels
    Image Resolution 5472 x 3648 pixels 8256 x 6192 pixels
    Pixel Pitch 2.41 μm 5.30 μm
    Pixel Density 17.18 MP/cm2 3.56 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability 1080/60p Video 1080/60i Video
    ISO Setting 125 - 12,800 ISO 100 - 204,800 ISO
    Image Processor DIGIC 6 PRIME III
    DXO Sensor Quality (score) 63 101
    DXO Color Depth (bits) 21.5 26.0
    DXO Dynamic Range (EV) 12.3 14.7
    DXO Low Light (ISO) 495 4505
    Screen Specs Canon G9 X Pentax 645Z
    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 Live View
    Rear LCD Size 3.0inch 3.2inch
    LCD Resolution 1040k dots 1037k dots
    LCD Attachment Fixed screen Tilting screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Canon G9 X Pentax 645Z
    Focus System Contrast-detect AF Phase-detect AF
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/2000s 1/4000s
    Continuous Shooting 6 shutter flaps/s 3 shutter flaps/s
    Time-Lapse PhotographyIntervalometer built-inIntervalometer built-in
    Fill Flash Built-in Flash no On-Board Flash
    Storage Medium SDXC cards SDXC cards
    Single or Dual Card Slots Single card slot Dual card slots
    UHS card support UHS-I UHS-I
    Connectivity Specs Canon G9 X Pentax 645Z
    External Flash no Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 3.0
    HDMI Port micro HDMI mini HDMI
    Microphone Port no MIC socket External MIC port
    Wifi Support Wifi built-in no Wifi
    Near-Field Communication NFC built-in no NFC
    Body Specs Canon G9 X Pentax 645Z
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type Canon NB-13L Pentax D-LI90
    Battery Life (CIPA)220 shots per charge650 shots per charge
    In-Camera Charging USB charging no USB charging
    Body Dimensions 98 x 58 x 31 mm
    (3.9 x 2.3 x 1.2 in)
    156 x 117 x 123 mm
    (6.1 x 4.6 x 4.8 in)
    Camera Weight 209 g (7.4 oz) 1550 g (54.7 oz)
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