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Panasonic GX9 vs Pentax K-1

The Panasonic Lumix DC-GX9 and the Pentax K-1 are two enthusiast cameras that were announced, respectively, in February 2018 and February 2016. The GX9 is a mirrorless interchangeable lens camera, while the K-1 is a DSLR. The cameras are based on a Four Thirds (GX9) and a full frame (K-1) sensor. The Panasonic has a resolution of 20.2 megapixels, whereas the Pentax provides 36.2 MP.

Below is an overview of the main specs of the two cameras as a starting point for the comparison.

Headline Specifications
Panasonic GX9
versus
Pentax K-1
Panasonic GX9   Pentax K-1
Mirrorless system camera Digital single lens reflex
Micro Four Thirds lenses Pentax K mount lenses
20.2 MP – Four Thirds sensor 36.2 MP – Full Frame sensor
4K/30p Video 1080/60i Video
ISO 200-25,600 ISO 100-204,800
Electronic viewfinder (2760k dots) Optical viewfinder
3.0" LCD – 1240k dots 3.2" LCD – 1037k dots
Tilting touchscreen Fully flexible screen (no touchscreen)
9 shutter flaps per second 4.4 shutter flaps per second
In-body stabilizationIn-body stabilization
not weather sealedWeathersealed body
260 shots per battery charge760 shots per battery charge
124 x 72 x 47 mm, 407 g 137 x 110 x 86 mm, 1010 g
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Check GX9 offers at
ebay.com
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Check K-1 offers at
ebay.com

Going beyond this snapshot of core features and characteristics, what are the differences between the Panasonic Lumix DC-GX9 and the Pentax K-1? 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 Panasonic GX9 and the Pentax K-1 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 size dimensions are rounded to the nearest millimeter.

Both cameras are available in two different colors (black, silver).

Size Panasonic GX9 vs Pentax K-1
Compare GX9 versus K-1 top
Comparison GX9 or K-1 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Pentax K-1 is considerably larger (69 percent) than the Panasonic GX9. Moreover, the K-1 is substantially heavier (148 percent) than the GX9. It is noteworthy in this context that the K-1 is splash and dust-proof, while the GX9 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 GX9 gets 260 shots out of its Panasonic DMW-BLG10 battery, while the K-1 can take 760 images on a single charge of its Pentax D-LI90 power pack. The power pack in the GX9 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 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
  empty Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price
Street
Price
1.
 
Panasonic GX9 124 mm 72 mm 47 mm 407 g 260 n Feb 2018 US$ 849ebay.com
2.
 
Pentax K-1 137 mm 110 mm 86 mm 1010 g 760 Y Feb 2016 US$ 1 799ebay.com
3.
 
Canon 5D Mark IV 151 mm 116 mm 76 mm 890 g 900 Y Aug 2016 US$ 3 499 amazon.com
4.
 
Nikon D500 147 mm 115 mm 81 mm 860 g 1240 Y Jan 2016 US$ 1 999ebay.com
5.
 
Olympus E-M10 II 120 mm 83 mm 47 mm 390 g 320 n Aug 2015 US$ 649ebay.com
6.
 
Olympus E-M10 III 122 mm 84 mm 50 mm 410 g 330 n Aug 2017 US$ 649ebay.com
7.
 
Olympus E-M10 IV 122 mm 84 mm 49 mm 383 g 360 n Aug 2020 US$ 699 amazon.com
8.
 
Olympus E-P7 118 mm 69 mm 38 mm 337 g 360 n Jun 2021 US$ 799 amazon.com
9.
 
Panasonic G95 130 mm 94 mm 77 mm 536 g 290 Y Apr 2019 US$ 999ebay.com
10.
 
Panasonic GX7 123 mm 71 mm 55 mm 402 g 350 n Aug 2013 US$ 999ebay.com
11.
 
Panasonic GX8 133 mm 78 mm 63 mm 487 g 330 Y Jul 2015 US$ 1 199ebay.com
12.
 
Panasonic GX85 122 mm 71 mm 44 mm 426 g 290 n Apr 2016 US$ 799 amazon.com
13.
 
Panasonic LX100 II 115 mm 66 mm 65 mm 392 g 300 n Aug 2018 US$ 999ebay.com
14.
 
Panasonic ZS200 111 mm 65 mm 45 mm 340 g 370 n Feb 2018 US$ 799 amazon.com
15.
 
Pentax K-1 II 137 mm 110 mm 86 mm 1010 g 670 Y Feb 2018 US$ 1 999 amazon.com
16.
 
Sony A7R IIIA 127 mm 96 mm 74 mm 650 g 650 Y Apr 2021 US$ 3 199 amazon.com
17.
 
Sony A99 II 143 mm 104 mm 76 mm 849 g 490 Y Sep 2016 US$ 3 199ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.

Any camera decision will naturally be influenced heavily by the price. The manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The GX9 was launched at a markedly lower price (by 53 percent) than the K-1, 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 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. 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 Panasonic GX9 features a Four Thirds sensor and the Pentax K-1 a full frame sensor. The sensor area in the K-1 is 283 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.0 and 1.0. The sensor in the GX9 has a native 4:3 aspect ratio, while the one in the K-1 offers a 3:2 aspect.

Panasonic GX9 and Pentax K-1 sensor measures

With 36.2MP, the K-1 offers a higher resolution than the GX9 (20.2MP), but the K-1 nevertheless has larger individual pixels (pixel pitch of 4.88μm versus 3.34μm for the GX9) due to its larger sensor. However, the GX9 is a somewhat more recent model (by 1 year and 11 months) than the K-1, and its sensor might 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 K-1 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the K-1 for good quality output (200 dots per inch) amounts to 36.8 x 24.6 inches or 93.5 x 62.4 cm, for very good quality (250 dpi) 29.4 x 19.6 inches or 74.8 x 49.9 cm, and for excellent quality (300 dpi) 24.5 x 16.4 inches or 62.3 x 41.6 cm. The corresponding values for the Panasonic GX9 are 25.9 x 19.4 inches or 65.8 x 49.4 cm for good quality, 20.7 x 15.6 inches or 52.7 x 39.5 cm for very good quality, and 17.3 x 13 inches or 43.9 x 32.9 cm for excellent quality prints.

Unlike the GX9, the K-1 has the capacity to capture high quality composite images by combining multiple shots after shifting its sensor by miniscule distances. This multi-shot, pixel-shift mode is most suitable for photography of stationary objects (landscapes, studio scenes).

The Panasonic Lumix DC-GX9 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 K-1 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.

GX9 versus K-1 MP

Consistent information on actual sensor performance is available from DXO Mark for many cameras. 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 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.
 
Panasonic GX9 Four Thirds 20.2 5184 38884K/30p23.112.8116374
2.
 
Pentax K-1 Full Frame 36.2 7360 49121080/60i25.414.6328096
3.
 
Canon 5D Mark IV Full Frame 30.1 6720 44804K/30p24.813.6299591
4.
 
Nikon D500 APS-C 20.7 5568 37124K/30p24.014.0132483
5.
 
Olympus E-M10 II Four Thirds 15.9 4608 34561080/60p23.112.584273
6.
 
Olympus E-M10 III Four Thirds 15.9 4608 34564K/30p23.112.8112074
7.
 
Olympus E-M10 IV Four Thirds 20.2 5184 38884K/30p23.313.2140276
8.
 
Olympus E-P7 Four Thirds 20.2 5184 38884K/30p23.413.3149477
9.
 
Panasonic G95 Four Thirds 20.2 5184 38884K/30p23.213.0127375
10.
 
Panasonic GX7 Four Thirds 15.8 4592 34481080/60p22.612.271870
11.
 
Panasonic GX8 Four Thirds 20.2 5184 38884K/30p23.512.680675
12.
 
Panasonic GX85 Four Thirds 15.8 4592 34484K/30p22.912.666271
13.
 
Panasonic LX100 II Four Thirds 16.8 4736 35524K/30p22.812.797972
14.
 
Panasonic ZS200 1-inch 20.0 5472 36484K/30p22.012.244964
15.
 
Pentax K-1 II Full Frame 36.2 7360 49121080/60i25.114.0269893
16.
 
Sony A7R IIIA Full Frame 42.2 7952 53044K/30p26.014.73523100
17.
 
Sony A99 II Full Frame 42.2 7952 53044K/30p25.413.4231792
Note: DXO values in italics represent estimates based on sensor size and age.

Many modern cameras are not only capable of taking still images, but can also record movies. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the GX9 provides a higher video resolution than the K-1. It can shoot video footage at 4K/30p, while the Pentax is limited to 1080/60i.

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Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. For example, the GX9 has an electronic viewfinder (2760k dots), while the K-1 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 viewfinders of both cameras offer the same field of view (100%), as well as the same magnification (0.70x). The table below summarizes some of the other core capabilities of the Panasonic GX9 and Pentax K-1 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.
 
Panasonic GX92760 n3.0 / 1240 tilting Y 1/4000s 9.0/s Y Y
2.
 
Pentax K-1optical Y3.2 / 1037 full-flex n 1/8000s 4.4/s n Y
3.
 
Canon 5D Mark IVoptical Y3.2 / 1620 fixed Y 1/8000s 7.0/s n n
4.
 
Nikon D500optical Y3.2 / 2359 tilting Y 1/8000s 10.0/s n n
5.
 
Olympus E-M10 II2360 n3.0 / 1040 tilting Y 1/4000s 8.0/s Y Y
6.
 
Olympus E-M10 III2360 n3.0 / 1040 tilting Y 1/4000s 8.6/s Y Y
7.
 
Olympus E-M10 IV2360 n3.0 / 1040 tilting Y 1/4000s 15.0/s Y Y
8.
 
Olympus E-P7none n3.0 / 1040 tilting Y 1/4000s 8.7/s Y Y
9.
 
Panasonic G952360 n3.0 / 1240 swivel Y 1/4000s 9.0/s Y Y
10.
 
Panasonic GX72760 n3.0 / 1040 tilting Y 1/8000s 5.0/s Y Y
11.
 
Panasonic GX82360 n3.0 / 1040 swivel Y 1/8000s 10.0/s n Y
12.
 
Panasonic GX852765 n3.0 / 1040 tilting Y 1/4000s 8.0/s Y Y
13.
 
Panasonic LX100 II2764 n3.0 / 1240 fixed Y 1/4000s 11.0/s n Y
14.
 
Panasonic ZS2002330 n3.0 / 1240 fixed Y 1/2000s 10.0/s Y Y
15.
 
Pentax K-1 IIoptical Y3.2 / 1037 full-flex n 1/8000s 4.4/s n Y
16.
 
Sony A7R IIIA3686 n3.0 / 2340 tilting Y 1/8000s 10.0/s n Y
17.
 
Sony A99 II2400 Y3.0 / 1229 full-flex n 1/8000s 12.0/s n Y
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 GX9 has one, while the K-1 does not. While the built-in flash of the GX9 is not very powerful, it can at times be useful as a fill-in light.

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 GX9 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 GX9 and the Pentax K-1 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 GX9 and the K-1 write their files to SDXC cards. The K-1 features dual card slots, which can be very useful in case a memory card fails. In contrast, the GX9 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 Panasonic Lumix DC-GX9 and Pentax K-1 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.
 
Panasonic GX9Ystereo / mono--micro2.0Y-Y
2.
 
Pentax K-1Ystereo / monoYYmicro2.0Y--
3.
 
Canon 5D Mark IVYmono / monoYYmini3.0YY-
4.
 
Nikon D500Ystereo / monoYYmini3.0YYY
5.
 
Olympus E-M10 IIYstereo / mono--micro2.0Y--
6.
 
Olympus E-M10 IIIYstereo / mono--micro2.0Y--
7.
 
Olympus E-M10 IVYstereo / mono--micro2.0Y-Y
8.
 
Olympus E-P7Ystereo / mono--micro2.0Y-Y
9.
 
Panasonic G95Ystereo / monoYYmicro2.0Y-Y
10.
 
Panasonic GX7Ystereo / mono--mini2.0YY-
11.
 
Panasonic GX8Ystereo / monoY-micro2.0YY-
12.
 
Panasonic GX85Ystereo / mono--micro2.0Y--
13.
 
Panasonic LX100 IIYstereo / mono--micro2.0Y-Y
14.
 
Panasonic ZS200-stereo / mono--micro2.0Y-Y
15.
 
Pentax K-1 IIYstereo / monoYYmicro2.0Y--
16.
 
Sony A7R IIIAYstereo / monoYYmicro3.2YYY
17.
 
Sony A99 IIYstereo / monoYYmicro2.0YYY

It is notable that the K-1 has a headphone jack, which makes it possible to attach external headphones and monitor the quality of sound during the recording process. The GX9 lacks such a headphone port.

Studio photographers will appreciate that the Pentax K-1 (unlike the GX9) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Travel and landscape photographers will find it useful that the K-1 has an internal geolocalization sensor and can record GPS coordinates in its EXIF data.

Both the GX9 and the K-1 have been discontinued, but can regularly be found used on ebay. The K-1 was replaced by the Pentax K-1 II, while the GX9 does not have a direct successor. Further information on the features and operation of the GX9 and K-1 can be found, respectively, in the Panasonic GX9 Manual (free pdf) or the online Pentax K-1 Manual.

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Review summary

So what conclusions can be drawn? Which of the two cameras – the Panasonic GX9 or the Pentax K-1 – has the upper hand? Is one clearly better than the other? The listing below highlights the relative strengths of the two models.

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Reasons to prefer the Panasonic Lumix DC-GX9:

  • Better video: Provides higher definition movie capture (4K/30p vs 1080/60i).
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • More detailed LCD: Has a higher resolution rear screen (1240k vs 1037k dots).
  • Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
  • Faster burst: Shoots at higher frequency (9 vs 4.4 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • More compact: Is smaller (124x72mm vs 137x110mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 603g or 60 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 wireless transfer: Supports Bluetooth for image sharing without cables.
  • More affordable: Was introduced into a lower priced category (53 percent cheaper at launch).
  • More modern: Is somewhat more recent (announced 1 year and 11 months after the K-1).

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Arguments in favor of the Pentax K-1:

  • More detail: Has more megapixels (36.2 vs 20.2MP), which boosts linear resolution by 37%.
  • High quality composites: Can combine several shots after pixel-shifting its sensor.
  • 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.
  • Better sound: Can connect to an external microphone for higher quality sound recording.
  • Better sound control: Has a headphone port that enables audio monitoring while recording.
  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • Easier setting verification: Features a control panel on top to check shooting parameters.
  • Larger screen: Has a bigger rear LCD (3.2" vs 3.0") for image review and settings control.
  • More flexible LCD: Has a full-flex screen for odd-angle shots in portrait or landscape orientation.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • Longer lasting: Gets more shots (760 versus 260) out of a single battery charge.
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
  • Easier geotagging: Features an internal GPS sensor to log localization data.
  • 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 on the market for longer (launched in February 2016).

If the count of individual advantages (bullet points above) is taken as a guide, the K-1 is the clear winner of the contest (19 : 14 points). However, the relative importance of the various individual camera aspects will vary according to personal preferences and needs, so that you might like to apply corresponding weights to the particular features before making a decision 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.

GX9 14:19 K-1

How about other alternatives? Do the specifications of the Panasonic GX9 and the Pentax K-1 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 says little about, for example, the shooting experience and imaging performance of the GX9 and the K-1 in practical situations. 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
  empty  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price
Street
Price
1.
 
Panasonic GX94/5+4/584/1004.5/54.5/5 Feb 2018 US$ 849ebay.com
2.
 
Pentax K-15/5....84/1005/55/5 Feb 2016 US$ 1 799ebay.com
3.
 
Canon 5D Mark IV4.5/5+ +4/587/1004.5/54.5/5 Aug 2016 US$ 3 499 amazon.com
4.
 
Nikon D5005/5+ +4.7/591/1004.5/55/5 Jan 2016 US$ 1 999ebay.com
5.
 
Olympus E-M10 II4.5/5+ +..80/1005/55/5 Aug 2015 US$ 649ebay.com
6.
 
Olympus E-M10 III..+5/580/1004.5/54.5/5 Aug 2017 US$ 649ebay.com
7.
 
Olympus E-M10 IV4.5/5..5/581/1004.5/54.5/5 Aug 2020 US$ 699 amazon.com
8.
 
Olympus E-P74/5..4.5/5....4.5/5 Jun 2021 US$ 799 amazon.com
9.
 
Panasonic G954.5/5+4.5/583/1004.5/54.5/5 Apr 2019 US$ 999ebay.com
10.
 
Panasonic GX74/5+..79/1005/55/5 Aug 2013 US$ 999ebay.com
11.
 
Panasonic GX85/5+..82/1004.5/54.5/5 Jul 2015 US$ 1 199ebay.com
12.
 
Panasonic GX854.5/5+ +..82/1005/55/5 Apr 2016 US$ 799 amazon.com
13.
 
Panasonic LX100 II4.5/5+4.2/582/1004.5/54.5/5 Aug 2018 US$ 999ebay.com
14.
 
Panasonic ZS200..+ +4.5/581/1004.5/54.5/5 Feb 2018 US$ 799 amazon.com
15.
 
Pentax K-1 II....4.5/579/1004.5/54.5/5 Feb 2018 US$ 1 999 amazon.com
16.
 
Sony A7R IIIA..+ +4/590/1004.5/55/5 Apr 2021 US$ 3 199 amazon.com
17.
 
Sony A99 II....4.5/585/1004.5/54.5/5 Sep 2016 US$ 3 199ebay.com
Note: (+ +) 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. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date 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? If you would like to see a different side-by-side camera review, just make a corresponding selection in the search boxes below. 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 GX9 vs Pentax K-1

    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 GX9 Pentax K-1
    Camera Type Mirrorless system camera Digital single lens reflex
    Camera Lens Micro Four Thirds lenses Pentax K mount lenses
    Launch Date February 2018 February 2016
    Launch Price USD 849 USD 1,799
    Sensor Specs Panasonic GX9 Pentax K-1
    Sensor Technology CMOS CMOS
    Sensor Format Four Thirds Sensor Full Frame Sensor
    Sensor Size 17.3 x 13.0 mm 35.9 x 24.0 mm
    Sensor Area 224.9 mm2 861.6 mm2
    Sensor Diagonal 21.6 mm 43.2 mm
    Crop Factor 2.0x 1.0x
    Sensor Resolution 20.2 Megapixels 36.2 Megapixels
    Image Resolution 5184 x 3888 pixels 7360 x 4912 pixels
    Pixel Pitch 3.34 μm 4.88 μm
    Pixel Density 8.96 MP/cm2 4.20 MP/cm2
    Moiré control no AA filter no AA filter
    Movie Capability 4K/30p Video 1080/60i Video
    ISO Setting 200 - 25,600 ISO 100 - 204,800 ISO
    ISO Boost 100 - 25,600 ISO no Enhancement
    Image Processor Venus PRIME IV
    DXO Sensor Quality (score) .. 96
    DXO Color Depth (bits) .. 25.4
    DXO Dynamic Range (EV) .. 14.6
    DXO Low Light (ISO) .. 3280
    Screen Specs Panasonic GX9 Pentax K-1
    Viewfinder Type Electronic viewfinder Optical viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.70x 0.70x
    Viewfinder Resolution 2760k dots
    Top-Level Screen no Top Display Control Panel
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.2inch
    LCD Resolution 1240k dots 1037k dots
    LCD Attachment Tilting screen Fully flexible screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Panasonic GX9 Pentax K-1
    Focus System Contrast-detect AF Phase-detect AF
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/4000s 1/8000s
    Continuous Shooting 9 shutter flaps/s 4.4 shutter flaps/s
    Electronic Shutterup to 1/16000sno E-Shutter
    Time-Lapse PhotographyIntervalometer built-inIntervalometer built-in
    Image StabilizationIn-body stabilizationIn-body stabilization
    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 Panasonic GX9 Pentax K-1
    External Flash Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 2.0
    HDMI Port micro HDMI micro HDMI
    Microphone Port no MIC socket External MIC port
    Headphone Socket no Headphone port Headphone port
    Wifi Support Wifi built-in Wifi built-in
    Bluetooth Support Bluetooth built-in no Bluetooth
    Geotagging no internal GPS GPS built-in
    Body Specs Panasonic GX9 Pentax K-1
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type Panasonic DMW-BLG10 Pentax D-LI90
    Battery Life (CIPA)260 shots per charge760 shots per charge
    In-Camera Charging USB charging no USB charging
    Body Dimensions 124 x 72 x 47 mm
    (4.9 x 2.8 x 1.9 in)
    137 x 110 x 86 mm
    (5.4 x 4.3 x 3.4 in)
    Camera Weight 407 g (14.4 oz) 1010 g (35.6 oz)
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