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Panasonic G90 vs Pentax 645Z

The Panasonic Lumix DC-G90 (called Panasonic G95 in some regions) and the Pentax 645Z are two digital cameras that were revealed to the public, respectively, in April 2019 and April 2014. The G90 is a mirrorless interchangeable lens camera, while the 645Z is a DSLR. The cameras are based on a Four Thirds (G90) and a medium format (645Z) sensor. The Panasonic has a resolution of 20.2 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
Panasonic G90 VS Pentax 645Z
Panasonic G90 Pentax 645Z
Mirrorless system camera Digital single lens reflex
Micro Four Thirds lenses Pentax 645 mount lenses
20.2 MP, Four Thirds Sensor 51.1 MP, Medium Format Sensor
4K/30p Video 1080/60i Video
ISO 200-25600 ISO 100-204800
Electronic viewfinder (2360k dots) Optical viewfinder
3.0" LCD, 1240k dots 3.2" LCD, 1037k dots
Swivel touchscreen Tilting screen (not touch-sensitive)
9 shutter flaps per second 3 shutter flaps per second
In-body stabilizationLens stabilization only
Weathersealed bodyWeathersealed body
290 shots per battery charge650 shots per battery charge
130 x 94 x 77 mm, 536 g 156 x 117 x 123 mm, 1550 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Panasonic Lumix DC-G90 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 physical size and weight of the Panasonic G90 and the Pentax 645Z are illustrated in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All width, height and depth dimensions are rounded to the nearest millimeter.

Size Panasonic G90 vs Pentax 645Z
Compare G90 versus 645Z top
Comparison G90 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 (49 percent) than the Panasonic G90. Moreover, the 645Z is substantially heavier (189 percent) than the G90. 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 G90 gets 290 shots out of its DMW-BLC12 battery, while the 645Z can take 650 images on a single charge of its D-LI90 power pack. The power pack in the G90 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, just use the right or left arrows in the table to switch to the respective camera. Alternatively, you can also navigate to the CAM-parator app and make your selection from the full list of cameras there.

Camera Body Specifications
  Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
(CIPA)
Weather
Sealing
(yes/no)
Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Camera
Model
 
Panasonic G90» 130 mm 94 mm 77 mm 536 g 290 Y Apr 2019 999 iPanasonic G90
 
Pentax 645Z« 156 mm 117 mm 123 mm 1550 g 650 Y Apr 2014 8,499 iPentax 645Z
 
Canon 5DS« » 152 mm 116 mm 76 mm 930 g 700 Y Feb 2015 3,699 iCanon 5DS
 
Canon 5DS R« » 152 mm 116 mm 76 mm 930 g 700 Y Feb 2015 3,699 iCanon 5DS R
 
Hasselblad X1D« » 150 mm 98 mm 71 mm 725 g .. Y Jun 2016 8,995iHasselblad X1D
 
Leica SL« » 147 mm 104 mm 39 mm 847 g 400 Y Oct 2015 7,450iLeica SL
 
Olympus E-M1 III« » 134 mm 91 mm 69 mm 580 g 420 Y Feb 2020 1,799 iOlympus E-M1 III
 
Olympus E-M5 III« » 125 mm 85 mm 50 mm 414 g 310 Y Oct 2019 1,199 iOlympus E-M5 III
 
Olympus E-M1 II« » 134 mm 91 mm 67 mm 574 g 440 Y Sep 2016 1,999iOlympus E-M1 II
 
Olympus E-M5 II« » 124 mm 85 mm 45 mm 469 g 310 Y Feb 2015 1,099iOlympus E-M5 II
 
Panasonic GX9« » 124 mm 72 mm 47 mm 407 g 260 n Feb 2018 849 iPanasonic GX9
 
Panasonic G9« » 137 mm 97 mm 92 mm 658 g 400 Y Nov 2017 1,699 iPanasonic G9
 
Panasonic GH5« » 139 mm 98 mm 87 mm 725 g 410 Y Jan 2017 1,999 iPanasonic GH5
 
Panasonic G80« » 128 mm 89 mm 74 mm 505 g 330 Y Sep 2016 899iPanasonic G80
 
Panasonic GX8« » 133 mm 78 mm 63 mm 487 g 330 Y Jul 2015 1,199iPanasonic GX8
 
Pentax 645D« » 156 mm 117 mm 119 mm 1480 g 800 Y Mar 2010 9,995iPentax 645D
 
Sony A7 III« » 127 mm 96 mm 74 mm 650 g 610 Y Feb 2018 1,999 iSony A7 III
Note: Measurements and pricing do not include easily detachable parts, such as interchangeable lenses or optional viewfinders.

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 G90 was launched at a markedly lower price (by 88 percent) than the 645Z, which puts it into a different market segment. Normally, street prices remain initially close to the MSRP, but after a couple of months, the first discounts appear. 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 size of the imaging sensor is a crucial determinant of image quality. A large sensor will generally have larger individual pixels that offer better low-light sensitivity, provide wider dynamic range, and have 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 tend to be associated with larger, more expensive camera bodies and lenses.

Of the two cameras under consideration, the Panasonic G90 features a Four Thirds sensor and the Pentax 645Z a medium format sensor. The sensor area in the 645Z is 539 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.0 and 0.79. Both cameras feature a native aspect ratio (sensor width to sensor height) of 4:3.

Panasonic G90 and Pentax 645Z sensor measures

With 51.1MP, the 645Z offers a higher resolution than the G90 (20.2MP), but the 645Z nevertheless has larger individual pixels (pixel pitch of 5.30μm versus 3.34μm for the G90) due to its larger sensor. However, the G90 is a much more recent model (by 4 years and 11 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 inch or 104.9 x 78.6 cm, for very good quality (250 dpi) 33 x 24.8 inch or 83.9 x 62.9 cm, and for excellent quality (300 dpi) 27.5 x 20.6 inch or 69.9 x 52.4 cm. The corresponding values for the Panasonic G90 are 25.9 x 19.4 inch or 65.8 x 49.4 cm for good quality, 20.7 x 15.6 inch or 52.7 x 39.5 cm for very good quality, and 17.3 x 13 inch or 43.9 x 32.9 cm for excellent quality prints.

The Panasonic Lumix DC-G90 has a native sensitivity range from ISO 200 to ISO 25600, which can be extended to ISO 100-25600. The corresponding ISO settings for the Pentax 645Z are ISO 100 to ISO 204800 (no boost).

G90 versus 645Z MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. This service is based on lab testing and assigns an overall score to each camera sensor, as well as ratings for dynamic range ("DXO Landscape"), color depth ("DXO Portrait"), and low-light sensitivity ("DXO Sports"). The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.

Sensor Characteristics
  Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Camera
Model
 
Panasonic G90 Four Thirds 20.2 5184 38884K/30p........Panasonic G90
 
Pentax 645Z Medium Format 51.1 8256 61921080/60i26.014.74505101Pentax 645Z
 
Canon 5DS Full Frame 50.3 8688 57921080/30p24.712.4238187Canon 5DS
 
Canon 5DS R Full Frame 50.3 8688 57921080/30p24.612.4230886Canon 5DS R
 
Hasselblad X1D Medium Format 51.3 8272 62001080/25p26.214.84489102Hasselblad X1D
 
Leica SL Full Frame 24.0 6000 40004K/30p25.013.4182188Leica SL
 
Olympus E-M1 III Four Thirds 20.2 5184 38884K/30p........Olympus E-M1 III
 
Olympus E-M5 III Four Thirds 20.2 5184 38884k/24p........Olympus E-M5 III
 
Olympus E-M1 II Four Thirds 20.2 5184 38884K/30p23.712.8131280Olympus E-M1 II
 
Olympus E-M5 II Four Thirds 15.9 4608 34561080/60p23.012.584273Olympus E-M5 II
 
Panasonic GX9 Four Thirds 20.2 5184 38884K/30p........Panasonic GX9
 
Panasonic G9 Four Thirds 20.2 5184 38884K/60p........Panasonic G9
 
Panasonic GH5 Four Thirds 20.2 5184 38884K/60p23.913.080777Panasonic GH5
 
Panasonic G80 Four Thirds 15.8 4592 34484K/30p22.812.565671Panasonic G80
 
Panasonic GX8 Four Thirds 20.2 5184 38884K/30p23.512.680675Panasonic GX8
 
Pentax 645D Medium Format 39.5 7264 5440none24.612.6126282Pentax 645D
 
Sony A7 III Full Frame 24.0 6000 40004K/30p25.014.7373096Sony A7 III

Many modern cameras are not only capable of taking still images, but also of capturing video footage. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the G90 provides a higher video resolution than the 645Z. It can shoot video footage at 4K/30p, while the Pentax is limited to 1080/60i.

 

Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. For example, the G90 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 viewfinder in the G90 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 0.74x), 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 Panasonic G90, the Pentax 645Z, and comparable cameras.

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
Camera
Model
 
Panasonic G902360 n 3.0 1240 swivel Y 1/4000s 9.0 Y Y Panasonic G90
 
Pentax 645Zoptical Y 3.2 1037 tilting n 1/4000s 3.0 n n Pentax 645Z
 
Canon 5DSoptical Y 3.2 1040 fixed n 1/8000s 5.0 n n Canon 5DS
 
Canon 5DS Roptical Y 3.2 1040 fixed n 1/8000s 5.0 n n Canon 5DS R
 
Hasselblad X1D2360 n 3.0 920 fixed Y 1/2000s 2.3 n n Hasselblad X1D
 
Leica SL4400 Y 3.0 1040 fixed Y 1/8000s 11.0 n n Leica SL
 
Olympus E-M1 III2360 n 3.0 1037 swivel Y 1/8000s 18.0 n Y Olympus E-M1 III
 
Olympus E-M5 III2360 n 3.0 1040 swivel Y 1/8000s 10.0 n Y Olympus E-M5 III
 
Olympus E-M1 II2360 n 3.0 1037 swivel Y 1/8000s 18.0 n Y Olympus E-M1 II
 
Olympus E-M5 II2360 n 3.0 1037 swivel Y 1/8000s 10.0 n Y Olympus E-M5 II
 
Panasonic GX92760 n 3.0 1240 tilting Y 1/4000s 9.0 Y Y Panasonic GX9
 
Panasonic G93680 Y 3.0 1040 swivel Y 1/8000s 20.0 n Y Panasonic G9
 
Panasonic GH53680 n 3.2 1620 swivel Y 1/8000s 12.0 n Y Panasonic GH5
 
Panasonic G802360 n 3.0 1040 swivel Y 1/4000s 9.0 Y Y Panasonic G80
 
Panasonic GX82360 n 3.0 1040 swivel Y 1/8000s 10.0 n Y Panasonic GX8
 
Pentax 645Doptical Y 3.0 921 fixed n 1/4000s 1.1 n n Pentax 645D
 
Sony A7 III2359 n 3.0 922 tilting Y 1/8000s 10.0 n Y Sony A7 III

One difference between the cameras concerns the presence of an on-board flash. The G90 has one, while the 645Z does not. While the built-in flash of the G90 is not very powerful, it can at times be useful as a fill-in light.

The G90 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 G90 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 Panasonic G90 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 G90 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 G90 only has one slot. The G90 supports UHS-II cards (Ultra High Speed data transfer of up to 312 MB/s), while the 645Z can use UHS-I cards (up to 104 MB/s).

 

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 Panasonic Lumix DC-G90 and Pentax 645Z and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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
Camera
Model
 
Panasonic G90YstereomonoYYmicro2.0Y-YPanasonic G90
 
Pentax 645ZYstereomonoY-mini3.0---Pentax 645Z
 
Canon 5DSYmonomonoY-mini3.0---Canon 5DS
 
Canon 5DS RYmonomonoY-mini3.0---Canon 5DS R
 
Hasselblad X1DYstereomonoYYmini3.0Y--Hasselblad X1D
 
Leica SLYstereomonoYYfull3.0Y--Leica SL
 
Olympus E-M1 IIIYstereomonoYYmicro3.1Y-YOlympus E-M1 III
 
Olympus E-M5 IIIYstereomonoY-micro2.0Y-YOlympus E-M5 III
 
Olympus E-M1 IIYstereomonoYYmicro3.0Y--Olympus E-M1 II
 
Olympus E-M5 IIYstereomonoY-micro2.0Y--Olympus E-M5 II
 
Panasonic GX9Ystereomono--micro2.0Y-YPanasonic GX9
 
Panasonic G9YstereomonoYYfull3.0Y-YPanasonic G9
 
Panasonic GH5YstereomonoYYfull3.1Y-YPanasonic GH5
 
Panasonic G80YstereomonoY-micro2.0Y--Panasonic G80
 
Panasonic GX8YstereomonoY-micro2.0YY-Panasonic GX8
 
Pentax 645DYstereonone--none2.0---Pentax 645D
 
Sony A7 IIIYstereomonoYYmicro3.1YYYSony A7 III

It is notable that the G90 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.

Studio photographers will appreciate that the Pentax 645Z (unlike the G90) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the G90 and the 645Z are recent models that are part of the current product line-up. The 645Z replaced the earlier Pentax 645D, while the G90 followed on from the Panasonic G80. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Panasonic and Pentax websites.

Review summary

So how do things add up? Which of the two cameras – the Panasonic G90 or the Pentax 645Z – has the upper hand? Is one clearly better than the other? A synthesis of the relative strong points of each of the models is listed below.

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Arguments in favor of the Panasonic Lumix DC-G90:

  • Better video: Provides higher definition movie capture (4K/30p vs 1080/60i).
  • 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%).
  • More detailed LCD: Has a higher resolution rear screen (1240k vs 1037k dots).
  • 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 (9 vs 3 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • More compact: Is smaller (130x94mm vs 156x117mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 1014g or 65 percent) and hence easier to carry around.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • Sharper images: Has hand-shake reducing image stabilization built-in.
  • 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 a more advanced SD data transfer standard (UHS-II vs UHS-I).
  • More affordable: Was introduced into a lower priced category (88 percent cheaper at launch).
  • More modern: Reflects 4 years and 11 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 20.2MP), which boosts linear resolution by 59%.
  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.78x vs 0.74x).
  • 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 290) out of a single battery charge.
  • 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 G90 is the clear winner of the match-up (20 : 10 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.

G90 20:10 645Z

How about other alternatives? Do the specifications of the Panasonic G90 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 specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the G90 or the 645Z. At times, user reviews, such as those published at amazon, address these issues in a useful manner, but such feedback is on many occasions incomplete, inconsistent, and unreliable.

Expert reviews

This is where reviews by experts come in. The adjacent summary-table relays the overall verdicts of several of the most popular camera 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.

Review Scores
  Camera
Model
cam
era
  labs  
dp
re
  view  
e
photo
  zine  
ima
ging
resource
photo
graphy
  blog  
Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Camera
Model
 
Panasonic G90+83/1004.5/54.5/54.5/5 Apr 2019 999 iPanasonic G90
 
Pentax 645Z....4.5/55/55/5 Apr 2014 8,499 iPentax 645Z
 
Canon 5DS+83/1004.5/55/54.5/5 Feb 2015 3,699 iCanon 5DS
 
Canon 5DS R+83/1005/55/54.5/5 Feb 2015 3,699 iCanon 5DS R
 
Hasselblad X1Do81/100....4/5 Jun 2016 8,995iHasselblad X1D
 
Leica SL..84/1004.5/54/54/5 Oct 2015 7,450iLeica SL
 
Olympus E-M1 III....4.5/5..4/5 Feb 2020 1,799 iOlympus E-M1 III
 
Olympus E-M5 III+82/1004.5/5..4.5/5 Oct 2019 1,199 iOlympus E-M5 III
 
Olympus E-M1 II+ +85/1004.5/55/54.5/5 Sep 2016 1,999iOlympus E-M1 II
 
Olympus E-M5 II+ +81/1005/54.5/55/5 Feb 2015 1,099iOlympus E-M5 II
 
Panasonic GX9+84/1004.5/54.5/54.5/5 Feb 2018 849 iPanasonic GX9
 
Panasonic G9+ +85/1005/55/55/5 Nov 2017 1,699 iPanasonic G9
 
Panasonic GH5+ +85/1004.5/55/55/5 Jan 2017 1,999 iPanasonic GH5
 
Panasonic G80+ +84/1005/54.5/54.5/5 Sep 2016 899iPanasonic G80
 
Panasonic GX8+82/1004.5/55/54.5/5 Jul 2015 1,199iPanasonic GX8
 
Pentax 645D......4.5/5.. Mar 2010 9,995iPentax 645D
 
Sony A7 III+ +89/1005/55/55/5 Feb 2018 1,999 iSony A7 III
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

Care should be taken when interpreting the review scores above, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. 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.

Panasonic G90:
Check Amazon price
Pentax 645Z:
Check Amazon price

Other camera comparisons

Did this review help to inform your camera decision process? If you would like to see a different side-by-side camera review, 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: Panasonic G90 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 Panasonic G90 Pentax 645Z
    Camera Type Mirrorless system camera Digital single lens reflex
    Camera Lens Micro Four Thirds lenses Pentax 645 mount lenses
    Launch Date April 2019 April 2014
    Launch Price USD 999 USD 8499
    Sensor Specs Panasonic G90 Pentax 645Z
    Sensor Technology CMOS CMOS
    Sensor Format Four Thirds Sensor Medium Format Sensor
    Sensor Size 17.3 x 13.0 mm 43.8 x 32.8 mm
    Sensor Area 224.9 mm2 1436.64 mm2
    Sensor Diagonal 21.6 mm 54.7 mm
    Crop Factor 2.0x 0.79x
    Sensor Resolution 20.2 Megapixels 51.1 Megapixels
    Image Resolution 5184 x 3888 pixels 8256 x 6192 pixels
    Pixel Pitch 3.34 μm 5.30 μm
    Pixel Density 8.96 MP/cm2 3.56 MP/cm2
    Moiré control no AA filter no AA filter
    Movie Capability 4K/30p Video 1080/60i Video
    ISO Setting 200-25600 ISO 100-204800 ISO
    ISO Boost 100-25600 ISO no Enhancement
    Image Processor Venus 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 Panasonic G90 Pentax 645Z
    Viewfinder Type Electronic viewfinder Optical viewfinder
    Viewfinder Field of View 100% 98%
    Viewfinder Magnification 0.74x 0.78x
    Viewfinder Resolution 2360k dots
    Top-Level Screen no Top Display Control Panel
    LCD Framing Live View Live View
    Rear LCD Size 3.0 inch 3.2 inch
    LCD Resolution 1240k dots 1037k dots
    LCD Attachment Swivel screen Tilting screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Panasonic G90 Pentax 645Z
    Focus System Contrast-detect AF Phase-detect AF
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/4000/s 1/4000/s
    Continuous Shooting 9 shutter flaps/s 3 shutter flaps/s
    Electronic Shutterup to 1/16000sno E-Shutter
    Time-Lapse PhotographyIntervalometer built-inIntervalometer built-in
    Image StabilizationIn-body stabilizationLens stabilization only
    Fill Flash Build-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-II UHS-I
    Connectivity Specs Panasonic G90 Pentax 645Z
    External Flash Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 3.0
    HDMI Port micro HDMI mini HDMI
    Microphone Port 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 Panasonic G90 Pentax 645Z
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type DMW-BLC12 D-LI90
    Battery Life (CIPA)290 shots per charge650 shots per charge
    In-Camera Charging USB charging no USB charging
    Body Dimensions 130 x 94 x 77 mm
    (5.1 x 3.7 x 3.0 in)
    156 x 117 x 123 mm
    (6.1 x 4.6 x 4.8 in)
    Camera Weight 536 g (18.9 oz) 1550 g (54.7 oz)

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