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Canon M6 Mark II vs Pentax 645D

The Canon EOS M6 Mark II and the Pentax 645D are two digital cameras that were announced, respectively, in August 2019 and March 2010. The M6 Mark II is a mirrorless interchangeable lens camera, while the 645D is a DSLR. The cameras are based on an APS-C (M6 Mark II) and a medium format (645D) sensor. The Canon has a resolution of 32.3 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 M6 Mark II
versus
Pentax 645D
Canon M6 Mark II   Pentax 645D
Mirrorless system camera Digital single lens reflex
Canon EF-M mount lenses Pentax 645 mount lenses
32.3 MP – APS-C sensor 39.5 MP – Medium Format sensor
4K/30p Video no Video
ISO 100-25,600 (100 - 51,200) ISO 100-1,600
Viewfinder optional Optical viewfinder
3.0" LCD – 1040k dots 3.0" LCD – 921k dots
Tilting touchscreen Fixed screen (not touch-sensitive)
14 shutter flaps per second 1.1 shutter flaps per second
not weather sealedWeathersealed body
305 shots per battery charge800 shots per battery charge
120 x 70 x 49 mm, 408 g 156 x 117 x 119 mm, 1480 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS M6 Mark II 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.

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Body comparison

An illustration of the physical size and weight of the Canon M6 Mark II and the Pentax 645D is provided in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All width, height and depth measures are rounded to the nearest millimeter.

Size Canon M6 Mark II vs Pentax 645D
Compare M6 Mark II versus 645D top
Comparison M6 Mark II 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 (117 percent) than the Canon M6 Mark II. Moreover, the 645D is substantially heavier (263 percent) than the M6 Mark II. It is noteworthy in this context that the 645D is splash and dust-proof, while the M6 Mark II does not feature any corresponding weather-sealing.

The above size and weight comparisons are to some extent incomplete since they do not consider the interchangeable lenses that both of these cameras require. Hence, you might want to study and compare the specifications of available lenses in order to get the full picture of the size and weight of the two camera systems.

Concerning battery life, the M6 Mark II gets 305 shots out of its Canon LP-E17 battery, while the 645D can take 800 images on a single charge of its Pentax D-LI90 power pack. The power pack in the M6 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 following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. 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
Street
Price
1.
 
Canon M6 Mark II 120 mm 70 mm 49 mm 408 g 305 n Aug 2019 US$ 849ebay.com
2.
 
Pentax 645D 156 mm 117 mm 119 mm 1480 g 800 Y Mar 2010 US$ 9 995ebay.com
3.
 
Canon 1D Mark IV 156 mm 157 mm 80 mm 1230 g 1500 Y Oct 2009 US$ 4 999ebay.com
4.
 
Canon 1D X 158 mm 168 mm 83 mm 1551 g 1120 Y Oct 2011 US$ 6 799ebay.com
5.
 
Canon G5 X Mark II 111 mm 61 mm 46 mm 340 g 230 n Jul 2019 US$ 899ebay.com
6.
 
Canon M3 111 mm 68 mm 44 mm 366 g 250 n Feb 2015 US$ 679ebay.com
7.
 
Canon M5 116 mm 89 mm 61 mm 427 g 295 n Sep 2016 US$ 979ebay.com
8.
 
Canon M6 112 mm 68 mm 45 mm 390 g 295 n Feb 2017 US$ 779ebay.com
9.
 
Canon M50 116 mm 88 mm 59 mm 390 g 235 n Feb 2018 US$ 779ebay.com
10.
 
Canon M50 Mark II 116 mm 88 mm 59 mm 387 g 305 n Oct 2020 US$ 599ebay.com
11.
 
Canon M200 108 mm 67 mm 35 mm 299 g 315 n Sep 2019 US$ 549ebay.com
12.
 
Canon SL3 122 mm 93 mm 70 mm 449 g 1070 n Apr 2019 US$ 599 amazon.com
13.
 
Canon T7 129 mm 101 mm 78 mm 475 g 500 n Feb 2018 US$ 449 amazon.com
14.
 
Canon T100 129 mm 102 mm 77 mm 436 g 500 n Feb 2018 US$ 399 amazon.com
15.
 
Leica S Typ 006 160 mm 120 mm 80 mm 1260 g .. Y Sep 2012 US$ 21 949ebay.com
16.
 
Nikon D3S 160 mm 157 mm 88 mm 1240 g 4200 Y Oct 2009 US$ 5 199ebay.com
17.
 
Pentax 645Z 156 mm 117 mm 123 mm 1550 g 650 Y Apr 2014 US$ 8 499ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.

The price is, of course, an important factor in any camera decision. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The M6 Mark II was launched at a markedly lower price (by 92 percent) than the 645D, which puts it into a different market segment. 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 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. 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Canon M6 Mark II features an APS-C sensor and the Pentax 645D a medium format sensor. The sensor area in the 645D is 330 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.6 and 0.79. The sensor in the M6 Mark II has a native 3:2 aspect ratio, while the one in the 645D offers a 4:3 aspect.

Canon M6 Mark II and Pentax 645D sensor measures

With 39.5MP, the 645D offers a higher resolution than the M6 Mark II (32.3MP), but the 645D nevertheless has larger individual pixels (pixel pitch of 6.06μm versus 3.23μm for the M6 Mark II) due to its larger sensor. However, the M6 Mark II is a much more recent model (by 9 years and 5 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 M6 Mark II are 34.8 x 23.2 inches or 88.4 x 58.9 cm for good quality, 27.8 x 18.6 inches or 70.7 x 47.1 cm for very good quality, and 23.2 x 15.5 inches or 58.9 x 39.3 cm for excellent quality prints.

The M6 Mark II has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Canon EOS M6 Mark II has a native sensitivity range from ISO 100 to ISO 25600, which can be extended to ISO 100-51200. The corresponding ISO settings for the Pentax 645D are ISO 100 to ISO 1600 (no boost).

In terms of underlying technology, the M6 Mark II is build around a CMOS sensor, while the 645D uses a CCD 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.

M6 Mark II versus 645D MP

For many cameras, data on sensor performance has been reported by DXO Mark. This service determines an overall sensor rating, as well as sub-scores for low-light sensitivity ("DXO Sports"), dynamic range ("DXO Landscape"), and color depth ("DXO Portrait"). 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
  empty Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Canon M6 Mark II APS-C 32.3 6960 46404K/30p24.013.5184883
2.
 
Pentax 645D Medium Format 39.5 7264 5440none24.612.6126282
3.
 
Canon 1D Mark IV APS-H 16.0 4896 32641080/30p22.812.0132074
4.
 
Canon 1D X Full Frame 17.9 5184 34561080/30p23.811.8278682
5.
 
Canon G5 X Mark II 1-inch 20.0 5472 36484K/30p22.212.458365
6.
 
Canon M3 APS-C 24.0 6000 40001080/30p22.811.8116972
7.
 
Canon M5 APS-C 24.0 6000 40001080/60p23.412.4126277
8.
 
Canon M6 APS-C 24.0 6000 40001080/60p23.412.6131778
9.
 
Canon M50 APS-C 24.0 6000 40004K/24p23.813.3168481
10.
 
Canon M50 Mark II APS-C 24.0 6000 40004K/24p24.013.6193983
11.
 
Canon M200 APS-C 24.0 6000 40004k/25p24.013.5183682
12.
 
Canon SL3 APS-C 24.0 6000 40004K/25p23.913.4179182
13.
 
Canon T7 APS-C 24.0 6000 40001080/30p23.813.3168481
14.
 
Canon T100 APS-C 17.9 5184 34561080/30p21.911.469563
15.
 
Leica S Typ 006 Medium Format 37.5 7500 5000none23.912.282476
16.
 
Nikon D3S Full Frame 12.1 4256 2832720/24p23.512.0325382
17.
 
Pentax 645Z Medium Format 51.1 8256 61921080/60i26.014.74505101
Note: DXO values in italics represent estimates based on sensor size and age.

Many modern cameras cannot only take still pictures, but also record videos. The M6 Mark II indeed provides movie recording capabilities, while the 645D does not. The highest resolution format that the M6 Mark II can use is 4K/30p.

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Feature comparison

Beyond 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 M6 Mark II relies on live view and the rear LCD for framing. That said, the M6 Mark II can be equipped with an optional viewfinder – the EVF-DC2. The table below summarizes some of the other core capabilities of the Canon M6 Mark II and Pentax 645D in connection with corresponding information for a sample of similar cameras.

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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 M6 Mark IIoptional n3.0 / 1040 tilting Y 1/4000s 14.0/s Y n
2.
 
Pentax 645Doptical Y3.0 / 921 fixed n 1/4000s 1.1/s n n
3.
 
Canon 1D Mark IVoptical Y3.0 / 920 fixed n 1/8000s 10.0/s n n
4.
 
Canon 1D Xoptical Y3.2 / 1040 fixed n 1/8000s 14.0/s n n
5.
 
Canon G5 X Mark II2360 n3.0 / 1040 tilting Y 1/2000s 30/s Y Y
6.
 
Canon M3optional n3.0 / 1040 tilting Y 1/4000s 4.2/s Y n
7.
 
Canon M52360 n3.2 / 1620 tilting Y 1/4000s 9.0/s Y n
8.
 
Canon M6optional n3.0 / 1040 tilting Y 1/4000s 9.0/s Y n
9.
 
Canon M502360 n3.0 / 1040 swivel Y 1/4000s 10.0/s Y n
10.
 
Canon M50 Mark II2360 n3.0 / 1040 swivel Y 1/4000s 10.0/s Y n
11.
 
Canon M200none n3.0 / 1040 tilting Y 1/4000s 6.1/s Y n
12.
 
Canon SL3optical n3.0 / 1040 swivel Y 1/4000s 5.0/s Y n
13.
 
Canon T7optical n3.0 / 920 fixed n 1/4000s 3.0/s Y n
14.
 
Canon T100optical n2.7 / 230 fixed n 1/4000s 3.0/s Y n
15.
 
Leica S Typ 006optical Y3.0 / 922 fixed n 1/4000s 1.5/s n n
16.
 
Nikon D3Soptical Y3.0 / 921 fixed n 1/8000s 11.0/s n n
17.
 
Pentax 645Zoptical Y3.2 / 1037 tilting n 1/4000s 3.0/s n n
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 M6 Mark II has one, while the 645D does not. While the built-in flash of the M6 Mark II is not very powerful, it can at times be useful as a fill-in light.

The M6 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 645D 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 M6 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 M6 Mark II 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 M6 Mark II 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 M6 Mark II only has one slot. The M6 Mark II supports UHS-II cards (Ultra High Speed data transfer of up to 312 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 EOS M6 Mark II 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
  empty Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Canon M6 Mark IIYstereo / monoY-micro2.0Y-Y
2.
 
Pentax 645DYstereo / ----2.0---
3.
 
Canon 1D Mark IVYstereo / -Y-mini2.0---
4.
 
Canon 1D XYmono / -Y-mini2.0---
5.
 
Canon G5 X Mark II-stereo / mono--micro3.1Y-Y
6.
 
Canon M3Ystereo / monoY-mini2.0YY-
7.
 
Canon M5Ystereo / monoY-mini2.0YYY
8.
 
Canon M6Ystereo / monoY-mini2.0YYY
9.
 
Canon M50Ystereo / monoY-micro2.0Y-Y
10.
 
Canon M50 Mark IIYstereo / monoY-micro2.0Y-Y
11.
 
Canon M200-stereo / mono--micro2.0Y-Y
12.
 
Canon SL3Ystereo / monoY-mini2.0Y-Y
13.
 
Canon T7Ymono / mono--mini2.0YY-
14.
 
Canon T100Ymono / mono--mini2.0YY-
15.
 
Leica S Typ 006Y- / ---mini2.0---
16.
 
Nikon D3SYstereo / ---mini2.0---
17.
 
Pentax 645ZYstereo / monoY-mini3.0---

It is notable that the M6 Mark II 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 M6 Mark II) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the M6 Mark II and the 645D have been discontinued, but can regularly be found used on ebay. The 645D was replaced by the Pentax 645Z, while the M6 Mark II does not have a direct successor. Further information on the features and operation of the M6 Mark II and 645D can be found, respectively, in the Canon M6 Mark II Manual (free pdf) or the online Pentax 645D Manual.

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Review summary

So what conclusions can be drawn? Is the Canon M6 Mark II better than the Pentax 645D or vice versa? Below is a summary of the relative strengths of each of the two contestants.

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Advantages of the Canon EOS M6 Mark II:

  • 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 4K/30p movies.
  • Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
  • 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 (14 vs 1.1 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • More compact: Is smaller (120x70mm vs 156x117mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 1072g or 72 percent) and hence easier to carry around.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • More legacy lens friendly: Can take a broad range of non-native lenses via adapters.
  • 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.
  • Faster buffer clearing: Supports Ultra High Speed (UHS-II) SDXC cards.
  • More affordable: Was introduced into a lower priced category (92 percent cheaper at launch).
  • More modern: Reflects 9 years and 5 months of technical progress since the 645D launch.

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Reasons to prefer the Pentax 645D:

  • More detail: Has more megapixels (39.5 vs 32.3MP), which boosts linear resolution by 8%.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • 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.
  • Longer lasting: Gets more shots (800 versus 305) out of a single battery charge.
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
  • 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 M6 Mark II is the clear winner of the match-up (19 : 9 points). However, the pertinence of the various camera strengths will differ across photographers, so that you might want to weigh individual camera traits according to their importance for your own imaging needs before making a camera decision. 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.

M6 Mark II 19:09 645D

How about other alternatives? Do the specifications of the Canon M6 Mark II and the Pentax 645D place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens 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 remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the M6 Mark II or the 645D. 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 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
Street
Price
1.
 
Canon M6 Mark II..+4.5/585/1004/54/5 Aug 2019 US$ 849ebay.com
2.
 
Pentax 645D5/5.......... Mar 2010 US$ 9 995ebay.com
3.
 
Canon 1D Mark IV5/5....89/100.... Oct 2009 US$ 4 999ebay.com
4.
 
Canon 1D X5/5......4.5/54.5/5 Oct 2011 US$ 6 799ebay.com
5.
 
Canon G5 X Mark II4/5+4/582/100..4/5 Jul 2019 US$ 899ebay.com
6.
 
Canon M34/5o..75/1004.5/54/5 Feb 2015 US$ 679ebay.com
7.
 
Canon M54/5+4/582/1004/54/5 Sep 2016 US$ 979ebay.com
8.
 
Canon M6......80/1004/54/5 Feb 2017 US$ 779ebay.com
9.
 
Canon M50..+4/579/100..3.5/5 Feb 2018 US$ 779ebay.com
10.
 
Canon M50 Mark II4/5..4/5..4.5/53.5/5 Oct 2020 US$ 599ebay.com
11.
 
Canon M200..+3/579/1004/54/5 Sep 2019 US$ 549ebay.com
12.
 
Canon SL34/5o4.5/579/1004/54/5 Apr 2019 US$ 599 amazon.com
13.
 
Canon T7..o3.5/5..3.5/53.5/5 Feb 2018 US$ 449 amazon.com
14.
 
Canon T100..o3/5..3.5/53.5/5 Feb 2018 US$ 399 amazon.com
15.
 
Leica S Typ 006............ Sep 2012 US$ 21 949ebay.com
16.
 
Nikon D3S5/5....89/1004.5/55/5 Oct 2009 US$ 5 199ebay.com
17.
 
Pentax 645Z5/5..3.5/5..4.5/55/5 Apr 2014 US$ 8 499ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

Care should be taken when interpreting the review scores above, though. The assessments were made in relation to similar cameras of the same technological generation. 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 make your choice using the following search menu. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Canon M6 Mark II 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 M6 Mark II Pentax 645D
    Camera Type Mirrorless system camera Digital single lens reflex
    Camera Lens Canon EF-M mount lenses Pentax 645 mount lenses
    Launch Date August 2019 March 2010
    Launch Price USD 849 USD 9,995
    Sensor Specs Canon M6 Mark II Pentax 645D
    Sensor Technology CMOS CCD
    Sensor Format APS-C Sensor Medium Format Sensor
    Sensor Size 22.5 x 15.0 mm 44.0 x 33.0 mm
    Sensor Area 337.5 mm2 1452 mm2
    Sensor Diagonal 27 mm 55 mm
    Crop Factor 1.6x 0.79x
    Sensor Resolution 32.3 Megapixels 39.5 Megapixels
    Image Resolution 6960 x 4640 pixels 7264 x 5440 pixels
    Pixel Pitch 3.23 μm 6.06 μm
    Pixel Density 9.57 MP/cm2 2.72 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability 4K/30p Video no Video
    ISO Setting 100 - 25,600 ISO 100 - 1,600 ISO
    ISO Boost 100 - 51,200 ISO no Enhancement
    Image Processor DIGIC 8 PRIME II
    DXO Sensor Quality (score) .. 82
    DXO Color Depth (bits) .. 24.6
    DXO Dynamic Range (EV) .. 12.6
    DXO Low Light (ISO) .. 1262
    Screen Specs Canon M6 Mark II Pentax 645D
    Viewfinder Type Viewfinder optional 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 M6 Mark II Pentax 645D
    Focus System On-Sensor Phase-detect Phase-detect AF
    Manual Focusing AidFocus Peakingno Peaking Feature
    Continuous Shooting 14 shutter flaps/s 1.1 shutter flaps/s
    Shutter Life Expectancy100 000 actuations50 000 actuations
    Electronic Shutterup to 1/16000sno E-Shutter
    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-II no
    Connectivity Specs Canon M6 Mark II Pentax 645D
    External Flash Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 2.0
    HDMI Port micro HDMI no HDMI
    Microphone Port External MIC port no MIC socket
    Wifi Support Wifi built-in no Wifi
    Bluetooth Support Bluetooth built-in no Bluetooth
    Body Specs Canon M6 Mark II Pentax 645D
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type Canon LP-E17 Pentax D-LI90
    Battery Life (CIPA)305 shots per charge800 shots per charge
    In-Camera Charging USB charging no USB charging
    Body Dimensions 120 x 70 x 49 mm
    (4.7 x 2.8 x 1.9 in)
    156 x 117 x 119 mm
    (6.1 x 4.6 x 4.7 in)
    Camera Weight 408 g (14.4 oz) 1480 g (52.2 oz)
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