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Canon G5 X Mark II vs Pentax 645Z

The Canon PowerShot G5 X Mark II and the Pentax 645Z are two digital cameras that were officially introduced, respectively, in July 2019 and April 2014. The G5X Mark II is a fixed lens compact, while the 645Z is a DSLR. The cameras are based on an one-inch (G5X Mark II) 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 G5 X Mark II
versus
Pentax 645Z
Canon G5 X Mark II Pentax 645Z
Fixed lens compact camera Digital single lens reflex
24-120mm f/1.8-2.8 Pentax 645 mount lenses
20 MP, 1" Sensor 51.1 MP, Medium Format Sensor
4K/30p Video 1080/60i Video
ISO 125-12,800 (125 - 25,600) ISO 100-204,800
Electronic viewfinder (2360k dots) Optical viewfinder
3.0 LCD, 1040k dots 3.2 LCD, 1037k dots
Tilting touchscreen Tilting screen (not touch-sensitive)
30 shutter flaps per second 3 shutter flaps per second
not weather sealedWeathersealed body
230 shots per battery charge650 shots per battery charge
111 x 61 x 46 mm, 340 g 156 x 117 x 123 mm, 1550 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Canon PowerShot G5 X Mark II 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.

Body comparison

The side-by-side display below illustrates the physical size and weight of the Canon G5 X Mark II and the Pentax 645Z. 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 G5 X Mark II vs Pentax 645Z
Compare G5X Mark II versus 645Z top
Comparison G5X Mark II 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 (170 percent) than the Canon G5 X Mark II. It is noteworthy in this context that the 645Z is splash and dust-proof, while the G5X Mark II does not feature any corresponding weather-sealing.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the G5X Mark II 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 G5X Mark II gets 230 shots out of its NB-13L battery, while the 645Z can take 650 images on a single charge of its D-LI90 power pack. The power pack in the G5X Mark II can be charged via the USB port, so that it is not always necessary to take the battery charger along when travelling.

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 G5 X Mark II 111 mm 61 mm 46 mm 340 g 230 n Jul 2019 899 i
2.
 
Pentax 645Z 156 mm 117 mm 123 mm 1550 g 650 Y Apr 2014 8,499 i
3.
 
Canon G7 X Mark III 105 mm 61 mm 41 mm 304 g 235 n Jul 2019 749 i
4.
 
Canon M50 116 mm 88 mm 59 mm 390 g 235 n Feb 2018 779 i
5.
 
Canon SX740 110 mm 64 mm 40 mm 299 g 265 n Jul 2018 399 i
6.
 
Canon G7 X Mark II 106 mm 61 mm 42 mm 319 g 265 n Feb 2016 699 i
7.
 
Canon 5DS 152 mm 116 mm 76 mm 930 g 700 Y Feb 2015 3,699 i
8.
 
Canon 5DS R 152 mm 116 mm 76 mm 930 g 700 Y Feb 2015 3,699 i
9.
 
Canon G5 X 112 mm 76 mm 44 mm 353 g 210 n Oct 2015 799 i
10.
 
Hasselblad X1D 150 mm 98 mm 71 mm 725 g .. Y Jun 2016 8,995 i
11.
 
Leica C-LUX 113 mm 67 mm 46 mm 340 g 370 n Jun 2018 1,049 i
12.
 
Leica SL 147 mm 104 mm 39 mm 847 g 400 Y Oct 2015 7,450 i
13.
 
Panasonic LX100 II 115 mm 66 mm 65 mm 392 g 300 n Aug 2018 999 i
14.
 
Panasonic ZS200 111 mm 65 mm 45 mm 340 g 370 n Feb 2018 799 i
15.
 
Pentax 645D 156 mm 117 mm 119 mm 1480 g 800 Y Mar 2010 9,995 i
16.
 
Sony ZV-1 105 mm 60 mm 44 mm 294 g 260 n May 2020 799 i
17.
 
Sony RX100 VI 102 mm 58 mm 43 mm 301 g 240 n Jun 2018 1,199 i
Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.

Any camera decision will naturally be influenced heavily by the price. The 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 G5X Mark II 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.

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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. Moreover, a large sensor camera will give the photographer more control over depth-of-field in the image and, thus, the ability to better isolate a subject from the background. On the downside, larger sensors are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Canon G5 X Mark II 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 G5X Mark II has a native 3:2 aspect ratio, while the one in the 645Z offers a 4:3 aspect.

Canon G5 X Mark II and Pentax 645Z sensor measures

With 51.1MP, the 645Z offers a higher resolution than the G5X Mark II (20MP), but the 645Z nevertheless has larger individual pixels (pixel pitch of 5.30μm versus 2.41μm for the G5X Mark II) due to its larger sensor. However, the G5X Mark II is a much more recent model (by 5 years and 2 months) than the 645Z, 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 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 G5 X Mark II 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 G5 X Mark II 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 Pentax 645Z are ISO 100 to ISO 204800 (no boost).

G5X Mark II 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. The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.

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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 G5 X Mark II 1-inch 20.0 5472 36484K/30p...... ..
2.
 
Pentax 645Z Medium Format 51.1 8256 61921080/60i26.014.74505 101
3.
 
Canon G7 X Mark III 1-inch 20.0 5472 36484K/30p...... ..
4.
 
Canon M50 APS-C 24.0 6000 40004K/24p...... ..
5.
 
Canon SX740 1/2.3 20.2 5184 38884K/30p...... ..
6.
 
Canon G7 X Mark II 1-inch 20.0 5472 36481080/60p...... ..
7.
 
Canon 5DS Full Frame 50.3 8688 57921080/30p24.712.42381 87
8.
 
Canon 5DS R Full Frame 50.3 8688 57921080/30p24.612.42308 86
9.
 
Canon G5 X 1-inch 20.0 5472 36481080/60p...... ..
10.
 
Hasselblad X1D Medium Format 51.3 8272 62001080/25p26.214.84489 102
11.
 
Leica C-LUX 1-inch 20.0 5472 36484K/30p...... ..
12.
 
Leica SL Full Frame 24.0 6000 40004K/30p25.013.41821 88
13.
 
Panasonic LX100 II Four Thirds 16.8 4736 35524K/30p...... ..
14.
 
Panasonic ZS200 1-inch 20.0 5472 36484K/30p...... ..
15.
 
Pentax 645D Medium Format 39.5 7264 5440none24.612.61262 82
16.
 
Sony ZV-1 1-inch 20.0 5472 36484K/30p...... ..
17.
 
Sony RX100 VI 1-inch 20.0 5472 36484K/30p...... ..

Many modern cameras are not only capable of taking still images, but can also record movies. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the G5X Mark II provides a higher video resolution than the 645Z. It can shoot video footage at 4K/30p, while the Pentax is limited to 1080/60i.

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Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. For example, the G5X Mark II has an electronic viewfinder (2360k dots), while the 645Z has an optical one. Both systems have their advantages, with the electronic viewfinder making it possible to project supplementary shooting information into the framing view, whereas the optical viewfinder offers lag-free viewing and a very clear framing image. The adjacent table lists some of the other core features of the Canon G5 X Mark II and Pentax 645Z along with similar information for a selection of comparators.

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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 G5 X Mark II2360 n 3.0 1040 tilting Y 1/2000s 30 Y Y
2.
 
Pentax 645Zoptical Y 3.2 1037 tilting n 1/4000s 3.0 n n
3.
 
Canon G7 X Mark IIInone n 3.0 1040 tilting Y 1/2000s 30 Y Y
4.
 
Canon M502360 n 3.0 1040 swivel Y 1/4000s 10.0 Y n
5.
 
Canon SX740none n 3.0 922 tilting n 1/3200s 10.0 Y Y
6.
 
Canon G7 X Mark IInone n 3.0 1040 tilting Y 1/2000s 8.0 Y Y
7.
 
Canon 5DSoptical Y 3.2 1040 fixed n 1/8000s 5.0 n n
8.
 
Canon 5DS Roptical Y 3.2 1040 fixed n 1/8000s 5.0 n n
9.
 
Canon G5 X2360 n 3.0 1040 swivel Y 1/2000s 5.9 Y Y
10.
 
Hasselblad X1D2360 n 3.0 920 fixed Y 1/2000s 2.3 n n
11.
 
Leica C-LUX2330 n 3.0 1240 fixed Y 1/2000s 10.0 Y Y
12.
 
Leica SL4400 Y 3.0 1040 fixed Y 1/8000s 11.0 n n
13.
 
Panasonic LX100 II2764 n 3.0 1240 fixed Y 1/4000s 11.0 n Y
14.
 
Panasonic ZS2002330 n 3.0 1240 fixed Y 1/2000s 10.0 Y Y
15.
 
Pentax 645Doptical Y 3.0 921 fixed n 1/4000s 1.1 n n
16.
 
Sony ZV-1none n 3.0 922 swivel Y 1/2000s 24.0 n Y
17.
 
Sony RX100 VI2359 n 3.0 1229 tilting Y 1/2000s 24.0 Y Y

One difference between the cameras concerns the presence of an on-board flash. The G5X Mark II has one, while the 645Z does not. While the built-in flash of the G5X Mark II is not very powerful, it can at times be useful as a fill-in light.

The G5X Mark II 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 645Z does not have a selfie-screen.

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 G5X Mark II 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 G5 X Mark II 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 G5X Mark II 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 G5X Mark II 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 G5 X Mark II 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
    Camera
Model
Hotshoe
Port
Internal
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Canon G5 X Mark II-stereomono--micro3.1Y-Y
2.
 
Pentax 645ZYstereomonoY-mini3.0---
3.
 
Canon G7 X Mark III-stereomonoY-micro3.1Y-Y
4.
 
Canon M50YstereomonoY-micro2.0Y-Y
5.
 
Canon SX740-stereomono--micro2.0Y-Y
6.
 
Canon G7 X Mark II-stereomono--micro2.0YY-
7.
 
Canon 5DSYmonomonoY-mini3.0---
8.
 
Canon 5DS RYmonomonoY-mini3.0---
9.
 
Canon G5 XYstereomono--mini2.0YY-
10.
 
Hasselblad X1DYstereomonoYYmini3.0Y--
11.
 
Leica C-LUX-stereomono--micro2.0Y--
12.
 
Leica SLYstereomonoYYfull3.0Y--
13.
 
Panasonic LX100 IIYstereomono--micro2.0Y-Y
14.
 
Panasonic ZS200-stereomono--micro2.0Y-Y
15.
 
Pentax 645DYstereo----2.0---
16.
 
Sony ZV-1YstereomonoY-micro2.0YYY
17.
 
Sony RX100 VI-stereomono--micro2.0YYY

It is notable that the G5X Mark II 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 G5X Mark II) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the G5X Mark II and the 645Z are recent models that are part of the current product line-up. The 645Z replaced the earlier Pentax 645D, while the G5X Mark II followed on from the Canon G5 X. 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 conclusions can be drawn? Is there a clear favorite between the Canon G5 X Mark II and the Pentax 645Z? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.

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Advantages of the Canon PowerShot G5 X Mark II:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Better video: Provides higher definition movie capture (4K/30p vs 1080/60i).
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • 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 (30 vs 3 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • Ready to shoot: Comes with a built-in lens, while the 645Z requires a separate lens.
  • More compact: Is smaller (111x61mm 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 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 5 years and 2 months of technical progress since the 645Z launch.

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Arguments in favor 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 sound: Can connect to an external microphone for higher quality sound recording.
  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • 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.
  • 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 230) 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 April 2014).

If the number of relative strengths (bullet points above) is taken as a guide, the G5X Mark II emerges as the winner of the contest (17 : 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 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.

G5X Mark II 17:14 645Z

How about other alternatives? Do the specifications of the Canon G5 X Mark II 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 G5X Mark II or the 645Z. 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 adjacent summary-table relays the overall verdicts of several of the most popular 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 G5 X Mark II4/5+82/100..4/5 Jul 2019 899 i
2.
 
Pentax 645Z5/5....4.5/55/5 Apr 2014 8,499 i
3.
 
Canon G7 X Mark III..+ +81/1004/5.. Jul 2019 749 i
4.
 
Canon M50..+79/100..3.5/5 Feb 2018 779 i
5.
 
Canon SX740..+..4/54/5 Jul 2018 399 i
6.
 
Canon G7 X Mark II4.5/5+ +81/1004.5/54.5/5 Feb 2016 699 i
7.
 
Canon 5DS..+83/1004.5/54.5/5 Feb 2015 3,699 i
8.
 
Canon 5DS R5/5+83/1005/54.5/5 Feb 2015 3,699 i
9.
 
Canon G5 X5/5+ +78/1004.5/54.5/5 Oct 2015 799 i
10.
 
Hasselblad X1D..o81/100..4/5 Jun 2016 8,995 i
11.
 
Leica C-LUX......4.5/54/5 Jun 2018 1,049 i
12.
 
Leica SL4/5..84/1004.5/54/5 Oct 2015 7,450 i
13.
 
Panasonic LX100 II4.5/5+82/1004.5/54.5/5 Aug 2018 999 i
14.
 
Panasonic ZS200..+ +81/1004.5/54.5/5 Feb 2018 799 i
15.
 
Pentax 645D5/5........ Mar 2010 9,995 i
16.
 
Sony ZV-14/5..85/1004/54.5/5 May 2020 799 i
17.
 
Sony RX100 VI4.5/5+ +83/1004/54.5/5 Jun 2018 1,199 i
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The above review scores should be interpreted 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, please note that some of the review sites have changed their methodology and reporting over time.

Canon G5 X Mark II:
Check Amazon price
Pentax 645Z:
Check Amazon price

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 G5 X Mark II 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 G5 X Mark II Pentax 645Z
    Camera Type Fixed lens compact camera Digital single lens reflex
    Camera Lens 24-120mm f/1.8-2.8 Pentax 645 mount lenses
    Launch Date July 2019 April 2014
    Launch Price USD 899 USD 8,499
    Sensor Specs Canon G5 X Mark II 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 4K/30p Video 1080/60i Video
    ISO Setting 125 - 12,800 ISO 100 - 204,800 ISO
    ISO Boost 125 - 25,600 ISO no Enhancement
    Image Processor DIGIC 8 PRIME III
    DXO Sensor Quality (score) .. 101
    DXO Color Depth (bits) .. 26.0
    DXO Dynamic Range (EV) .. 14.7
    DXO Low Light (ISO) .. 4505
    Screen Specs Canon G5 X Mark II Pentax 645Z
    Viewfinder Type Electronic viewfinder Optical viewfinder
    Viewfinder Field of View 100% 98%
    Viewfinder Magnification 0.78x
    Viewfinder Resolution 2360k dots
    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 Tilting screen Tilting screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Canon G5 X Mark II 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 30 shutter flaps/s 3 shutter flaps/s
    Electronic Shutterup to 1/25600sno E-Shutter
    Time-Lapse PhotographyIntervalometer built-inIntervalometer built-in
    Fill Flash Built-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 UHS-I
    Connectivity Specs Canon G5 X Mark II Pentax 645Z
    External Flash no Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 3.1 USB 3.0
    HDMI Port micro HDMI mini HDMI
    Microphone Port no MIC socket External MIC port
    Wifi Support Wifi built-in no Wifi
    Bluetooth Support Bluetooth built-in no Bluetooth
    Body Specs Canon G5 X Mark II Pentax 645Z
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type NB-13L D-LI90
    Battery Life (CIPA)230 shots per charge650 shots per charge
    In-Camera Charging USB charging no USB charging
    Body Dimensions 111 x 61 x 46 mm
    (4.4 x 2.4 x 1.8 in)
    156 x 117 x 123 mm
    (6.1 x 4.6 x 4.8 in)
    Camera Weight 340 g (12.0 oz) 1550 g (54.7 oz)

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