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Fujifilm X-T3 vs Pentax 645Z

The Fujifilm X-T3 and the Pentax 645Z are two digital cameras that were revealed to the public, respectively, in September 2018 and April 2014. The X-T3 is a mirrorless interchangeable lens camera, while the 645Z is a DSLR. The cameras are based on an APS-C (X-T3) and a medium format (645Z) sensor. The Fujifilm has a resolution of 26 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
Fujifilm X-T3 versus Pentax 645Z
Fujifilm X-T3 Pentax 645Z
Mirrorless system camera Digital single lens reflex
Fujifilm X mount lenses Pentax 645 mount lenses
26 MP, APS-C Sensor 51.1 MP, Medium Format Sensor
4K/60p Video 1080/60i Video
ISO 160-12,800 (80 - 51,200) ISO 100-204,800
Electronic viewfinder (3690k dots) Optical viewfinder
3.0 LCD, 1040k dots 3.2 LCD, 1037k dots
Tilting touchscreen Tilting screen (not touch-sensitive)
11 shutter flaps per second 3 shutter flaps per second
Weathersealed bodyWeathersealed body
390 shots per battery charge650 shots per battery charge
133 x 93 x 59 mm, 539 g 156 x 117 x 123 mm, 1550 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Fujifilm X-T3 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 Fujifilm X-T3 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 width, height and depth dimensions are rounded to the nearest millimeter.

The X-T3 can be obtained in two different colors (black, silver), while the 645Z is only available in black.

Size Fujifilm X-T3 vs Pentax 645Z
Compare X-T3 versus 645Z top
Comparison X-T3 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 (48 percent) than the Fujifilm X-T3. Moreover, the 645Z is substantially heavier (188 percent) than the X-T3. In this context, it is worth noting that both cameras are splash and dust-proof and can, hence, be used in inclement weather conditions or harsh environments.

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 X-T3 gets 390 shots out of its NP-W126S battery, while the 645Z can take 650 images on a single charge of its D-LI90 power pack. The power pack in the X-T3 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. In case you want to display and compare another camera duo, just click on the right or left arrow next to the camera that you would like to inspect. Alternatively, you can also use the CAM-parator to select your camera combination among a larger number of options.

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Body Specifications
  Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life 1
Weather
Sealing
Camera
Launch 2
Launch
Price (USD)
Street
Price
 
Fujifilm X-T3 5.2 in 3.7 in 2.3 in 19.0 oz 390 Y Sep 2018 1,499 i
 
Pentax 645Z 6.1 in 4.6 in 4.8 in 54.7 oz 650 Y Apr 2014 8,499 i
 
Canon G1 X Mark III 4.5 in 3.1 in 2.0 in 14.1 oz 200 Y Oct 2017 1,299 i
 
Canon 5DS 6.0 in 4.6 in 3.0 in 32.8 oz 700 Y Feb 2015 3,699 i
 
Canon 5DS R 6.0 in 4.6 in 3.0 in 32.8 oz 700 Y Feb 2015 3,699 i
 
Fujifilm X100V 5.0 in 3.0 in 2.1 in 16.9 oz 420 Y Feb 2020 1,399 i
 
Fujifilm X-T4 5.3 in 3.7 in 2.5 in 21.4 oz 500 Y Feb 2020 1,699 i
 
Fujifilm X-Pro3 5.6 in 3.3 in 1.8 in 17.5 oz 440 Y Oct 2019 1,799 i
 
Fujifilm X-T100 4.8 in 3.3 in 1.9 in 15.8 oz 430 n May 2018 599i
 
Fujifilm X100F 5.0 in 3.0 in 2.0 in 16.5 oz 390 n Jan 2017 1,299i
 
Fujifilm X-T20 4.6 in 3.3 in 1.6 in 13.5 oz 350 n Jan 2017 899 i
 
Fujifilm X-Pro2 5.6 in 3.3 in 1.8 in 17.5 oz 350 Y Jan 2016 1,699 i
 
Fujifilm X-T2 5.2 in 3.6 in 1.9 in 17.9 oz 340 Y Jul 2016 1,599i
 
Fujifilm X-T1 5.1 in 3.5 in 1.9 in 15.5 oz 350 Y Jan 2014 1,299i
 
Hasselblad X1D 5.9 in 3.9 in 2.8 in 25.6 oz .. Y Jun 2016 8,995i
 
Leica SL 5.8 in 4.1 in 1.5 in 29.9 oz 400 Y Oct 2015 7,450i
 
Pentax 645D 6.1 in 4.6 in 4.7 in 52.2 oz 800 Y Mar 2010 9,995i
Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
(1) Number of images that can be taken on a full battery charge according to the CIPA-standard; (2) Official announcement.

Any camera decision will naturally be influenced heavily by the price. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The X-T3 was launched at a markedly lower price (by 82 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. All other things equal, a large sensor will have larger individual pixel-units that offer better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixels in a sensor of the same technological generation. Furthermore, a large sensor camera will give the photographer more possibilities to use shallow depth-of-field in order to isolate a subject from the background. On the downside, larger sensors are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Fujifilm X-T3 features an APS-C sensor and the Pentax 645Z a medium format sensor. The sensor area in the 645Z is 292 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.5 and 0.79. The sensor in the X-T3 has a native 3:2 aspect ratio, while the one in the 645Z offers a 4:3 aspect.

Fujifilm X-T3 and Pentax 645Z sensor measures

With 51.1MP, the 645Z offers a higher resolution than the X-T3 (26MP), but the 645Z nevertheless has larger individual pixels (pixel pitch of 5.30μm versus 3.76μm for the X-T3) due to its larger sensor. However, the X-T3 is a much more recent model (by 4 years and 4 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 neither of the two cameras has an anti-alias filter installed, so they are able to capture all the detail the 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 Fujifilm X-T3 are 31.2 x 20.8 inches or 79.2 x 52.8 cm for good quality, 25 x 16.6 inches or 63.4 x 42.3 cm for very good quality, and 20.8 x 13.9 inches or 52.8 x 35.2 cm for excellent quality prints.

The X-T3 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Fujifilm X-T3 has a native sensitivity range from ISO 160 to ISO 12800, which can be extended to ISO 80-51200. The corresponding ISO settings for the Pentax 645Z are ISO 100 to ISO 204800 (no boost).

X-T3 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 table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.

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Sensor Characteristics
  Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
 
Fujifilm X-T3 APS-C 26.0 6240 41604K/60p........
 
Pentax 645Z Medium Format 51.1 8256 61921080/60i26.014.74505101
 
Canon G1 X Mark III APS-C 24.0 6000 40001080/60p........
 
Canon 5DS Full Frame 50.3 8688 57921080/30p24.712.4238187
 
Canon 5DS R Full Frame 50.3 8688 57921080/30p24.612.4230886
 
Fujifilm X100V APS-C 26.0 6240 41604K/30p........
 
Fujifilm X-T4 APS-C 26.0 6240 41604K/60p........
 
Fujifilm X-Pro3 APS-C 26.0 6240 41604K/30p........
 
Fujifilm X-T100 APS-C 24.0 6000 40004K/15p........
 
Fujifilm X100F APS-C 24.0 6000 40001080/60p........
 
Fujifilm X-T20 APS-C 24.0 6000 40004K/30p........
 
Fujifilm X-Pro2 APS-C 24.0 6000 40001080/60p........
 
Fujifilm X-T2 APS-C 24.0 6000 40004K/30p........
 
Fujifilm X-T1 APS-C 16.0 4896 32641080/60p........
 
Hasselblad X1D Medium Format 51.3 8272 62001080/25p26.214.84489102
 
Leica SL Full Frame 24.0 6000 40004K/30p25.013.4182188
 
Pentax 645D Medium Format 39.5 7264 5440none24.612.6126282

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 X-T3 provides a higher video resolution than the 645Z. It can shoot video footage at 4K/60p, while the Pentax is limited to 1080/60i.

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the X-T3 has an electronic viewfinder (3690k 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 viewfinder in the X-T3 offers a wider field of view (100%) than the one in the 645Z (98%), so that a larger proportion of the captured image is visible in the finder. On the other hand, the viewfinder of the 645Z has a higher magnification (0.78x vs 0.75x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The following table reports on some other key feature differences and similarities of the Fujifilm X-T3, the Pentax 645Z, and comparable cameras.

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Core Features
  Camera
Model
Viewfinder
(Type or
000 dots)
Control
Panel
(yes/no)
LCD
Size
(inch)
LCD
Resolution
(000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Mech
Shutter
Speed
Shutter
Flaps
(1/sec)
Built-in
Flash
(yes/no)
Built-in
Image
Stab
 
Fujifilm X-T33690 n 3.0 1040 tilting Y 1/8000s 11.0 n n
 
Pentax 645Zoptical Y 3.2 1037 tilting n 1/4000s 3.0 n n
 
Canon G1 X Mark III2360 n 3.0 1040 swivel Y 1/2000s 9.0 Y Y
 
Canon 5DSoptical Y 3.2 1040 fixed n 1/8000s 5.0 n n
 
Canon 5DS Roptical Y 3.2 1040 fixed n 1/8000s 5.0 n n
 
Fujifilm X100V3690 n 3.0 1620 tilting Y 1/4000s 11.0 Y n
 
Fujifilm X-T43690 n 3.0 1620 swivel Y 1/8000s 15.0 n Y
 
Fujifilm X-Pro33690 n 3.0 1620 tilting Y 1/8000s 8.0 n n
 
Fujifilm X-T1002360 n 3.0 1040 full-flex Y 1/4000s 6.0 Y n
 
Fujifilm X100F2360 n 3.0 1040 fixed n 1/4000s 8.0 Y n
 
Fujifilm X-T202360 n 3.0 1040 tilting Y 1/4000s 8.0 Y n
 
Fujifilm X-Pro22360 n 3.0 1620 fixed n 1/8000s 8.0 n n
 
Fujifilm X-T22360 n 3.0 1040 tilting n 1/8000s 14.0 n n
 
Fujifilm X-T12360 n 3.0 1040 tilting n 1/4000s 8.0 n n
 
Hasselblad X1D2360 n 3.0 920 fixed Y 1/2000s 2.3 n n
 
Leica SL4400 Y 3.0 1040 fixed Y 1/8000s 11.0 n n
 
Pentax 645Doptical Y 3.0 921 fixed n 1/4000s 1.1 n n

One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The X-T3 has a touchscreen, while the 645Z has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

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 X-T3 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 Fujifilm X-T3 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 X-T3 and the 645Z write their files to SDXC cards. Both cameras feature dual card slots, which can be very useful in case a memory card fails. The X-T3 supports UHS-II cards (on both slots), while the 645Z can use UHS-I cards.

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 Fujifilm X-T3 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
 
Fujifilm X-T3YstereomonoYYmicro3.1Y-Y
 
Pentax 645ZYstereomonoY-mini3.0---
 
Canon G1 X Mark IIIYstereomono--micro2.0YYY
 
Canon 5DSYmonomonoY-mini3.0---
 
Canon 5DS RYmonomonoY-mini3.0---
 
Fujifilm X100VYstereomonoY-micro3.1Y-Y
 
Fujifilm X-T4YstereomonoY-micro3.1Y-Y
 
Fujifilm X-Pro3YstereomonoY--3.1Y-Y
 
Fujifilm X-T100YstereomonoY-micro2.0Y-Y
 
Fujifilm X100FYstereomonoY-micro2.0Y--
 
Fujifilm X-T20YstereomonoY-micro2.0Y--
 
Fujifilm X-Pro2YstereomonoY-micro2.0Y--
 
Fujifilm X-T2YstereomonoY-micro3.0Y--
 
Fujifilm X-T1YstereomonoY-mini2.0Y--
 
Hasselblad X1DYstereomonoYYmini3.0Y--
 
Leica SLYstereomonoYYfull3.0Y--
 
Pentax 645DYstereo----2.0---

It is notable that the X-T3 has a headphone jack, which is not present on the 645Z This port makes it possible to attach external headphones and monitor the quality of sound during the recording process.

Both cameras feature a PC Sync terminal to control professional strobe lights, which will be appreciated by studio photographers.

Both the X-T3 and the 645Z are recent models that are part of the current product line-up. The 645Z replaced the earlier Pentax 645D, while the X-T3 followed on from the Fujifilm X-T2. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Fujifilm and Pentax websites.

Review summary

So what is the bottom line? Is there a clear favorite between the Fujifilm X-T3 and the Pentax 645Z? Which camera is better? The listing below highlights the relative strengths of the two models.

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Arguments in favor of the Fujifilm X-T3:

  • Better video: Provides higher definition movie capture (4K/60p vs 1080/60i).
  • Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
  • Better sound control: Has a headphone port that enables audio monitoring while recording.
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • More complete view: Has a viewfinder with a larger field of view (100% vs 98%).
  • Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • Faster burst: Shoots at higher frequency (11 vs 3 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • More compact: Is smaller (133x93mm vs 156x117mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 1011g or 65 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 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 a more advanced SD data transfer standard (UHS-II vs UHS-I).
  • More affordable: Was introduced into a lower priced category (82 percent cheaper at launch).
  • More modern: Reflects 4 years and 4 months of technical progress since the 645Z launch.

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Reasons to prefer the Pentax 645Z:

  • More detail: Has more megapixels (51.1 vs 26MP), which boosts linear resolution by 38%.
  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.78x vs 0.75x).
  • 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.
  • Longer lasting: Gets more shots (650 versus 390) out of a single battery charge.
  • 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 X-T3 is the clear winner of the match-up (17 : 7 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.

X-T3 17:07 645Z

How about other alternatives? Do the specifications of the Fujifilm X-T3 and the Pentax 645Z 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 technical specifications can provide a useful overview of the capabilities of different cameras, it remains incomplete and does no justice, for example, to the way the X-T3 or the 645Z perform in practice. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.

Expert reviews

This is where reviews by experts come in. The table below provides a synthesis of the camera assessments of some of the best known photo-gear review sites (cameralabs, dpreview, ephotozine, imaging-resource, and photographyblog). 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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Review Scores
  Camera
Model
camera
  labs  
dp
review  
ephoto
  zine  
imaging
resource
photography
  blog  
Camera
Launch
Launch
Price (USD)
Street
Price
 
Fujifilm X-T3+ +88/1005/55/55/5 Sep 2018 1,499 i
 
Pentax 645Z....4.5/55/55/5 Apr 2014 8,499 i
 
Canon G1 X Mark III+79/1004.5/5..4.5/5 Oct 2017 1,299 i
 
Canon 5DS+83/1004.5/55/54.5/5 Feb 2015 3,699 i
 
Canon 5DS R+83/1005/55/54.5/5 Feb 2015 3,699 i
 
Fujifilm X100V+ +86/1005/5..4.5/5 Feb 2020 1,399 i
 
Fujifilm X-T4+ +..5/5..5/5 Feb 2020 1,699 i
 
Fujifilm X-Pro3+85/1004/5.... Oct 2019 1,799 i
 
Fujifilm X-T100+79/1004/5..4.5/5 May 2018 599i
 
Fujifilm X100F+83/1004.5/5..4.5/5 Jan 2017 1,299i
 
Fujifilm X-T20+ +82/1005/5..4.5/5 Jan 2017 899 i
 
Fujifilm X-Pro2+83/1004.5/54.5/54.5/5 Jan 2016 1,699 i
 
Fujifilm X-T2+ +86/1004.5/55/55/5 Jul 2016 1,599i
 
Fujifilm X-T1+ +84/1005/54/55/5 Jan 2014 1,299i
 
Hasselblad X1Do81/100....4/5 Jun 2016 8,995i
 
Leica SL..84/1004.5/54/54/5 Oct 2015 7,450i
 
Pentax 645D......4.5/5.. Mar 2010 9,995i
Notes: (+ +) 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 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.

Fujifilm X-T3:
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 a corresponding selection in the search boxes below. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.

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    Specifications: Fujifilm X-T3 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 Fujifilm X-T3 Pentax 645Z
    Camera Type Mirrorless system camera Digital single lens reflex
    Camera Lens Fujifilm X mount lenses Pentax 645 mount lenses
    Launch Date September 2018 April 2014
    Launch Price USD 1,499 USD 8,499
    Sensor Specs Fujifilm X-T3 Pentax 645Z
    Sensor Technology BSI-CMOS CMOS
    Sensor Format APS-C Sensor Medium Format Sensor
    Sensor Size 23.5 x 15.6 mm 43.8 x 32.8 mm
    Sensor Area 366.6 mm2 1436.64 mm2
    Sensor Diagonal 28.2 mm 54.7 mm
    Crop Factor 1.5x 0.79x
    Sensor Resolution 26 Megapixels 51.1 Megapixels
    Image Resolution 6240 x 4160 pixels 8256 x 6192 pixels
    Pixel Pitch 3.76 μm 5.30 μm
    Pixel Density 7.08 MP/cm2 3.56 MP/cm2
    Moiré control no AA filter no AA filter
    Movie Capability 4K/60p Video 1080/60i Video
    ISO Setting 160 - 12,800 ISO 100 - 204,800 ISO
    ISO Boost 80 - 51,200 ISO no Enhancement
    Image Processor X-Processor 4 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 Fujifilm X-T3 Pentax 645Z
    Viewfinder Type Electronic viewfinder Optical viewfinder
    Viewfinder Field of View 100% 98%
    Viewfinder Magnification 0.75x 0.78x
    Viewfinder Resolution 3690k 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 Fujifilm X-T3 Pentax 645Z
    Focus System On-Sensor Phase-detect Phase-detect AF
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/8000s 1/4000s
    Continuous Shooting 11 shutter flaps/s 3 shutter flaps/s
    Electronic Shutterup to 1/32000sno E-Shutter
    Time-Lapse PhotographyIntervalometer built-inIntervalometer built-in
    Fill Flash no On-Board Flash no On-Board Flash
    Storage Medium SDXC cards SDXC cards
    Second Storage Option Dual card slots Dual card slots
    UHS card support Dual UHS-II UHS-I
    Connectivity Specs Fujifilm X-T3 Pentax 645Z
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket PC Sync socket
    USB Connector USB 3.1 USB 3.0
    HDMI Port micro HDMI mini HDMI
    Microphone Port External MIC port External MIC port
    Headphone Socket Headphone port no Headphone port
    Wifi Support Wifi built-in no Wifi
    Bluetooth Support Bluetooth built-in no Bluetooth
    Body Specs Fujifilm X-T3 Pentax 645Z
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type NP-W126S D-LI90
    Battery Life (CIPA)390 shots per charge650 shots per charge
    In-Camera Charging USB charging no USB charging
    Body Dimensions 133 x 93 x 59 mm
    (5.2 x 3.7 x 2.3 in)
    156 x 117 x 123 mm
    (6.1 x 4.6 x 4.8 in)
    Camera Weight 539 g (19.0 oz) 1550 g (54.7 oz)

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