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Canon 800D vs Pentax 645Z

The Canon EOS 800D (called Canon T7i in some regions) and the Pentax 645Z are two digital cameras that were officially introduced, respectively, in February 2017 and April 2014. Both are DSLR (Digital Single Lens Reflex) cameras that are based on an APS-C (800D) and a medium format (645Z) sensor. The Canon has a resolution of 24 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 800D
versus
Pentax 645Z
Canon 800D   Pentax 645Z
Digital single lens reflex Digital single lens reflex
Canon EF mount lenses Pentax 645 mount lenses
24 MP – APS-C sensor 51.1 MP – Medium Format sensor
1080/60p Video 1080/60i Video
ISO 100-25,600 (100 - 51,200) ISO 100-204,800
Optical viewfinder Optical viewfinder
3.0" LCD – 1040k dots 3.2" LCD – 1037k dots
Swivel touchscreen Tilting screen (no touchscreen)
6 shutter flaps per second 3 shutter flaps per second
not weather sealedWeathersealed body
600 shots per battery charge650 shots per battery charge
131 x 100 x 76 mm, 532 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 EOS 800D 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 side-by-side display below illustrates the physical size and weight of the Canon 800D and the Pentax 645Z. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All size dimensions are rounded to the nearest millimeter.

Size Canon 800D vs Pentax 645Z
Compare 800D versus 645Z top
Comparison 800D 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 notably larger (39 percent) than the Canon 800D. Moreover, the 645Z is substantially heavier (191 percent) than the 800D. It is noteworthy in this context that the 645Z is splash and dust-proof, while the 800D 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 800D gets 600 shots out of its LP-E17 battery, while the 645Z can take 650 images on a single charge of its D-LI90 power pack.

The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. If you want to switch the focus of the display and review another camera pair, you can move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.

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Body Specifications
# image Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Canon 800D 131 mm 100 mm 76 mm 532 g 600 n Feb 2017 749ebay.com
2.
 
Pentax 645Z 156 mm 117 mm 123 mm 1550 g 650 Y Apr 2014 8,499 amazon.com
3.
 
Canon 850D 131 mm 103 mm 76 mm 515 g 800 n Feb 2020 749 amazon.com
4.
 
Canon 2000D 129 mm 101 mm 78 mm 475 g 500 n Feb 2018 449 amazon.com
5.
 
Canon 77D 131 mm 100 mm 76 mm 540 g 600 n Feb 2017 899ebay.com
6.
 
Canon 200D 122 mm 93 mm 70 mm 453 g 650 n Jun 2017 549ebay.com
7.
 
Canon M6 112 mm 68 mm 45 mm 390 g 295 n Feb 2017 779ebay.com
8.
 
Canon 1300D 129 mm 101 mm 78 mm 485 g 500 n Mar 2016 449ebay.com
9.
 
Canon G7 X Mark II 106 mm 61 mm 42 mm 319 g 265 n Feb 2016 699ebay.com
10.
 
Canon 5DS 152 mm 116 mm 76 mm 930 g 700 Y Feb 2015 3,699ebay.com
11.
 
Canon 5DS R 152 mm 116 mm 76 mm 930 g 700 Y Feb 2015 3,699ebay.com
12.
 
Canon 750D 132 mm 101 mm 78 mm 555 g 440 n Feb 2015 749ebay.com
13.
 
Canon 760D 132 mm 101 mm 78 mm 565 g 440 n Feb 2015 649ebay.com
14.
 
Hasselblad X1D 150 mm 98 mm 71 mm 725 g .. Y Jun 2016 8,995ebay.com
15.
 
Leica SL 147 mm 104 mm 39 mm 847 g 400 Y Oct 2015 7,450ebay.com
16.
 
Nikon D5600 124 mm 97 mm 70 mm 465 g 970 n Nov 2016 699 amazon.com
17.
 
Pentax 645D 156 mm 117 mm 119 mm 1480 g 800 Y Mar 2010 9,995ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
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The price is, of course, an important factor in any camera decision. 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 800D was launched at a markedly lower price (by 91 percent) than the 645Z, 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. 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Canon 800D features an APS-C sensor and the Pentax 645Z a medium format sensor. The sensor area in the 645Z is 333 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 800D has a native 3:2 aspect ratio, while the one in the 645Z offers a 4:3 aspect.

Canon 800D and Pentax 645Z sensor measures

With 51.1MP, the 645Z offers a higher resolution than the 800D (24MP), but the 645Z nevertheless has larger individual pixels (pixel pitch of 5.30μm versus 3.72μm for the 800D) due to its larger sensor. However, the 800D is a much more recent model (by 2 years and 10 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 800D are 30 x 20 inches or 76.2 x 50.8 cm for good quality, 24 x 16 inches or 61 x 40.6 cm for very good quality, and 20 x 13.3 inches or 50.8 x 33.9 cm for excellent quality prints.

The 800D has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Canon EOS 800D 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 645Z are ISO 100 to ISO 204800 (no boost).

Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.

800D 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 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
# image Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Canon 800D APS-C 24.0 6000 40001080/60p23.713.1158680
2.
 
Pentax 645Z Medium Format 51.1 8256 61921080/60i26.014.74505101
3.
 
Canon 850D APS-C 24.0 6000 40004K/24p24.013.5187383
4.
 
Canon 2000D APS-C 24.0 6000 40001080/30p22.611.9100971
5.
 
Canon 77D APS-C 24.0 6000 40001080/60p23.613.397178
6.
 
Canon 200D APS-C 24.0 6000 40001080/60p23.613.4104179
7.
 
Canon M6 APS-C 24.0 6000 40001080/60p23.412.6131778
8.
 
Canon 1300D APS-C 17.9 5184 34561080/30p22.011.778166
9.
 
Canon G7 X Mark II 1-inch 20.0 5472 36481080/60p21.811.926062
10.
 
Canon 5DS Full Frame 50.3 8688 57921080/30p24.712.4238187
11.
 
Canon 5DS R Full Frame 50.3 8688 57921080/30p24.612.4230886
12.
 
Canon 750D APS-C 24.0 6000 40001080/30p22.712.091971
13.
 
Canon 760D APS-C 24.0 6000 40001080/30p22.612.091570
14.
 
Hasselblad X1D Medium Format 51.3 8272 62001080/25p26.214.84489102
15.
 
Leica SL Full Frame 24.0 6000 40004K/30p25.013.4182188
16.
 
Nikon D5600 APS-C 24.0 6000 40001080/60p24.114.0130684
17.
 
Pentax 645D Medium Format 39.5 7264 5440none24.612.6126282
Note: DXO values in italics represent estimates based on sensor size and age.
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Many modern cameras are not only capable of taking still images, but also of capturing video footage. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the 800D 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

Apart from body and sensor, cameras can and do differ across a range of features. The 800D and the 645Z are similar in the sense that both have an optical viewfinder. The latter is useful for getting a clear image for framing even in brightly lit environments. The viewfinder in the 645Z offers a wider field of view (98%) than the one in the 800D (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the 645Z has a higher magnification (0.78x vs 0.51x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The adjacent table lists some of the other core features of the Canon 800D and Pentax 645Z along with similar information for a selection of comparators.

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Core Features
# image 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 800Doptical n3.0 / 1040 swivel Y 1/4000s 6.0/s Y n
2.
 
Pentax 645Zoptical Y3.2 / 1037 tilting n 1/4000s 3.0/s n n
3.
 
Canon 850Doptical n3.0 / 1040 swivel Y 1/4000s 7.5/s Y n
4.
 
Canon 2000Doptical n3.0 / 920 fixed n 1/4000s 3.0/s Y n
5.
 
Canon 77Doptical Y3.0 / 1040 swivel Y 1/4000s 6.0/s Y n
6.
 
Canon 200Doptical n3.0 / 1040 swivel Y 1/4000s 5.0/s Y n
7.
 
Canon M6optional n3.0 / 1040 tilting Y 1/4000s 9.0/s Y n
8.
 
Canon 1300Doptical n3.0 / 920 fixed n 1/4000s 3.0/s Y n
9.
 
Canon G7 X Mark IInone n3.0 / 1040 tilting Y 1/2000s 8.0/s Y Y
10.
 
Canon 5DSoptical Y3.2 / 1040 fixed n 1/8000s 5.0/s n n
11.
 
Canon 5DS Roptical Y3.2 / 1040 fixed n 1/8000s 5.0/s n n
12.
 
Canon 750Doptical n3.0 / 1040 swivel Y 1/4000s 5.0/s Y n
13.
 
Canon 760Doptical Y3.0 / 1040 swivel Y 1/4000s 5.0/s Y n
14.
 
Hasselblad X1D2360 n3.0 / 920 fixed Y 1/2000s 2.3/s n n
15.
 
Leica SL4400 Y3.0 / 1040 fixed Y 1/8000s 11.0/s n n
16.
 
Nikon D5600optical n3.2 / 1037 swivel Y 1/4000s 5.0/s Y n
17.
 
Pentax 645Doptical Y3.0 / 921 fixed n 1/4000s 1.1/s n n
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.
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One difference between the cameras concerns the presence of an on-board flash. The 800D has one, while the 645Z does not. While the built-in flash of the 800D is not very powerful, it can at times be useful as a fill-in light.

The 800D 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 Pentax 645Z has an intervalometer built-in. This enables the photographer to capture time lapse sequences, such as flower blooming, a sunset or moon rise, without purchasing an external camera trigger and related software.

Concerning the storage of imaging data, both the 800D 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 800D 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 EOS 800D 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
# image Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Canon 800DYstereo / monoY-mini2.0YYY
2.
 
Pentax 645ZYstereo / monoY-mini3.0---
3.
 
Canon 850DYstereo / monoY-mini2.0Y-Y
4.
 
Canon 2000DYmono / mono--mini2.0YY-
5.
 
Canon 77DYstereo / monoY-mini2.0YYY
6.
 
Canon 200DYstereo / monoY-mini2.0YYY
7.
 
Canon M6Ystereo / monoY-mini2.0YYY
8.
 
Canon 1300DYmono / mono--mini2.0YY-
9.
 
Canon G7 X Mark II-stereo / mono--micro2.0YY-
10.
 
Canon 5DSYmono / monoY-mini3.0---
11.
 
Canon 5DS RYmono / monoY-mini3.0---
12.
 
Canon 750DYstereo / monoY-mini2.0YY-
13.
 
Canon 760DYstereo / monoY-mini2.0YY-
14.
 
Hasselblad X1DYstereo / monoYYmini3.0Y--
15.
 
Leica SLYstereo / monoYYfull3.0Y--
16.
 
Nikon D5600Ystereo / monoY-mini2.0YYY
17.
 
Pentax 645DYstereo / ----2.0---
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It is notable that the 800D 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 800D) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

The 645Z is a recent model that features in the current product line-up of Pentax. In contrast, the 800D has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the 800D was succeeded by the Canon 850D. Further information on the features and operation of the 800D and 645Z can be found, respectively, in the Canon 800D Manual (free pdf) or the online Pentax 645Z Manual.

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Review summary

So what conclusions can be drawn? Is there a clear favorite between the Canon 800D and the Pentax 645Z? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.

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Advantages of the Canon EOS 800D:

  • 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).
  • Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
  • More flexible LCD: Has a swivel screen for odd-angle shots in portrait or 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 vs 3 flaps/sec) to capture the decisive moment.
  • More compact: Is smaller (131x100mm vs 156x117mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 1018g or 66 percent) and hence easier to carry around.
  • 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.
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • More affordable: Was introduced into a lower priced category (91 percent cheaper at launch).
  • More modern: Reflects 2 years and 10 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 24MP), which boosts linear resolution by 43%.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Better image quality: Features bigger pixels on a larger sensor for higher quality imaging.
  • Richer colors: The pixel size advantage translates into images with better, more accurate colors.
  • More dynamic range: Larger pixels capture a wider spectrum of light and dark details.
  • Better low-light sensitivity: Larger pixels means good image quality even under poor lighting.
  • More complete view: Has a viewfinder with a larger field of view (98% vs 95%).
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.78x vs 0.51x).
  • 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.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
  • 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 around for much longer (launched in April 2014).

If the count of individual advantages (bullet points above) is taken as a guide, the 645Z comes out slightly ahead of the 800D (16 : 15 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 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.

800D 15:16 645Z

How about other alternatives? Do the specifications of the Canon 800D and the Pentax 645Z place the cameras among the top in their class? Find out in the latest Best DSLR Camera listing whether the two cameras rank among the cream of the crop.

In any case, while the specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it remains incomplete and does no justice, for example, to the way the 800D or the 645Z perform in practice. 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 following table reports the overall ratings of the cameras as published by some of the major 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
# image  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Canon 800D4.5/5..3.5/580/1004.5/54/5 Feb 2017 749ebay.com
2.
 
Pentax 645Z5/5..3.5/5..4.5/55/5 Apr 2014 8,499 amazon.com
3.
 
Canon 850D4/5+3/580/1004/53.5/5 Feb 2020 749 amazon.com
4.
 
Canon 2000D3/5o3.5/5..3.5/53.5/5 Feb 2018 449 amazon.com
5.
 
Canon 77D4.5/5..4/582/1004.5/54/5 Feb 2017 899ebay.com
6.
 
Canon 200D4/5+ +4/578/1004.5/54.5/5 Jun 2017 549ebay.com
7.
 
Canon M6......80/1004/54/5 Feb 2017 779ebay.com
8.
 
Canon 1300D4/5o4/573/1004/54/5 Mar 2016 449ebay.com
9.
 
Canon G7 X Mark II4.5/5+ +..81/1004.5/54.5/5 Feb 2016 699ebay.com
10.
 
Canon 5DS..+..83/1004.5/54.5/5 Feb 2015 3,699ebay.com
11.
 
Canon 5DS R5/5+..83/1005/54.5/5 Feb 2015 3,699ebay.com
12.
 
Canon 750D5/5....75/1004.5/54.5/5 Feb 2015 749ebay.com
13.
 
Canon 760D5/5+..77/1004.5/54.5/5 Feb 2015 649ebay.com
14.
 
Hasselblad X1D..o..81/100..4/5 Jun 2016 8,995ebay.com
15.
 
Leica SL4/5..4/584/1004.5/54/5 Oct 2015 7,450ebay.com
16.
 
Nikon D56004/5..4/579/1004.5/54/5 Nov 2016 699 amazon.com
17.
 
Pentax 645D5/5.......... Mar 2010 9,995ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.
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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. Hence, a score should always be seen in the context of the camera's market launch date and its price, 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.

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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 800D 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 800D Pentax 645Z
    Camera Type Digital single lens reflex Digital single lens reflex
    Camera Lens Canon EF mount lenses Pentax 645 mount lenses
    Launch Date February 2017 April 2014
    Launch Price USD 749 USD 8,499
    Sensor Specs Canon 800D Pentax 645Z
    Sensor Technology CMOS CMOS
    Sensor Format APS-C Sensor Medium Format Sensor
    Sensor Size 22.3 x 14.9 mm 43.8 x 32.8 mm
    Sensor Area 332.27 mm2 1436.64 mm2
    Sensor Diagonal 26.8 mm 54.7 mm
    Crop Factor 1.6x 0.79x
    Sensor Resolution 24 Megapixels 51.1 Megapixels
    Image Resolution 6000 x 4000 pixels 8256 x 6192 pixels
    Pixel Pitch 3.72 μm 5.30 μm
    Pixel Density 7.22 MP/cm2 3.56 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability 1080/60p Video 1080/60i Video
    ISO Setting 100 - 25,600 ISO 100 - 204,800 ISO
    ISO Boost 100 - 51,200 ISO no Enhancement
    Image Processor DIGIC 7 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 800D Pentax 645Z
    Viewfinder Type Optical viewfinder Optical viewfinder
    Viewfinder Field of View 95% 98%
    Viewfinder Magnification 0.51x 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 Swivel screen Tilting screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Canon 800D Pentax 645Z
    Focus System Phase-detect AF Phase-detect AF
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/4000s 1/4000s
    Continuous Shooting 6 shutter flaps/s 3 shutter flaps/s
    Shutter Life Expectancy100 000 actuations100 000 actuations
    Time-Lapse Photographyno IntervalometerIntervalometer 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 800D Pentax 645Z
    External Flash Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 3.0
    HDMI Port mini HDMI mini HDMI
    Microphone Port External MIC port External MIC port
    Wifi Support Wifi built-in no Wifi
    Near-Field Communication NFC built-in no NFC
    Bluetooth Support Bluetooth built-in no Bluetooth
    Body Specs Canon 800D Pentax 645Z
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type LP-E17 D-LI90
    Battery Life (CIPA)600 shots per charge650 shots per charge
    Body Dimensions 131 x 100 x 76 mm
    (5.2 x 3.9 x 3.0 in)
    156 x 117 x 123 mm
    (6.1 x 4.6 x 4.8 in)
    Camera Weight 532 g (18.8 oz) 1550 g (54.7 oz)
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