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Panasonic G9 II vs Pentax K-3 II

The Panasonic Lumix DC-G9 II and the Pentax K-3 II are two enthusiast cameras that were officially introduced, respectively, in September 2023 and April 2015. The G9 II is a mirrorless interchangeable lens camera, while the K-3 II is a DSLR. The cameras are based on a Four Thirds (G9 II) and an APS-C (K-3 II) sensor. The Panasonic has a resolution of 25 megapixels, whereas the Pentax provides 24.1 MP.

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

Headline Specifications
Panasonic G9 II
versus
Pentax K-3 II
Panasonic G9 II   Pentax K-3 II
Mirrorless system camera Digital single lens reflex
Micro Four Thirds lenses Pentax K mount lenses
25 MP – Four Thirds sensor 24.1 MP – APS-C sensor
5.7K/60p Video 1080/60i Video
ISO 100-25,600 ISO 100-51,200
Electronic viewfinder (3680k dots) Optical viewfinder
3.0" LCD – 1840k dots 3.2" LCD – 1037k dots
Swivel touchscreen Fixed screen (not touch-sensitive)
10 shutter flaps per second 8.3 shutter flaps per second
In-body stabilizationIn-body stabilization
Weathersealed bodyWeathersealed body
390 shots per battery charge720 shots per battery charge
134 x 102 x 90 mm, 658 g 131 x 100 x 77 mm, 800 g
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Check G9 II price at
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Check K-3 II offers at
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Going beyond this snapshot of core features and characteristics, what are the differences between the Panasonic Lumix DC-G9 II and the Pentax K-3 II? 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 Panasonic G9 II and the Pentax K-3 II. 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.

The K-3 II can be obtained in two different colors (black, silver), while the G9 II is only available in black.

Size Panasonic G9 II vs Pentax K-3 II
Compare G9 II versus K-3 II top
Comparison G9 II or K-3 II rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Pentax K-3 II is somewhat smaller (4 percent) than the Panasonic G9 II. However, the K-3 II is markedly heavier (22 percent) than the G9 II. 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 G9 II gets 390 shots out of its Panasonic DMW-BLK22 battery, while the K-3 II can take 720 images on a single charge of its Pentax D-LI90 power pack. The power pack in the G9 II can be charged via the USB port, so that it is not always necessary to take the battery charger along when travelling.

The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. If you 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 G9 II 134 mm 102 mm 90 mm 658 g 390 Y Sep 2023 US$ 1 899 amazon.com
2.
 
Pentax K-3 II 131 mm 100 mm 77 mm 800 g 720 Y Apr 2015 US$ 1 099ebay.com
3.
 
Nikon Z6 II 134 mm 101 mm 70 mm 705 g 410 Y Oct 2020 US$ 1 999 amazon.com
4.
 
Nikon Zf 144 mm 103 mm 49 mm 710 g 380 Y Sep 2023 US$ 1 999 amazon.com
5.
 
OM System OM-1 135 mm 92 mm 73 mm 599 g 520 Y Feb 2022 US$ 2 199ebay.com
6.
 
Panasonic G9 137 mm 97 mm 92 mm 658 g 400 Y Nov 2017 US$ 1 699ebay.com
7.
 
Panasonic GH5 139 mm 98 mm 87 mm 725 g 410 Y Jan 2017 US$ 1 999ebay.com
8.
 
Panasonic GH5 II 139 mm 98 mm 87 mm 727 g 400 Y May 2021 US$ 1 699 amazon.com
9.
 
Panasonic GH6 138 mm 100 mm 100 mm 823 g 360 Y Feb 2022 US$ 2 199 amazon.com
10.
 
Panasonic GH7 138 mm 100 mm 100 mm 805 g 380 Y Jun 2024 US$ 2 199 amazon.com
11.
 
Panasonic S5 133 mm 98 mm 82 mm 714 g 440 Y Sep 2020 US$ 1 999 amazon.com
12.
 
Panasonic S5 II 134 mm 102 mm 90 mm 740 g 370 Y Jan 2023 US$ 1 999 amazon.com
13.
 
Pentax K-3 131 mm 100 mm 77 mm 800 g 560 Y Oct 2013 US$ 1 299ebay.com
14.
 
Pentax K-3 III 135 mm 104 mm 74 mm 820 g 800 Y Mar 2021 US$ 1 999 amazon.com
15.
 
Pentax K-5 131 mm 97 mm 73 mm 760 g 740 Y Sep 2010 US$ 1 099ebay.com
16.
 
Pentax K-70 126 mm 93 mm 74 mm 688 g 410 Y Jun 2016 US$ 649ebay.com
17.
 
Pentax KP 132 mm 101 mm 76 mm 703 g 390 Y Jan 2017 US$ 1 099ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.

The price is, of course, an important factor in any camera decision. The 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 K-3 II was launched at a markedly lower price (by 42 percent) than the G9 II, 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. 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 tend to be more expensive and lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Panasonic G9 II features a Four Thirds sensor and the Pentax K-3 II an APS-C sensor. The sensor area in the K-3 II is 63 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.0 and 1.5. The sensor in the G9 II has a native 4:3 aspect ratio, while the one in the K-3 II offers a 3:2 aspect.

Panasonic G9 II and Pentax K-3 II sensor measures

Despite having a smaller sensor, the Panasonic G9 II offers a higher resolution of 25 megapixels, compared with 24.1 MP of the Pentax K-3 II. This megapixels advantage comes at the cost of a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 3.00μm versus 3.90μm for the K-3 II). However, it should be noted that the G9 II is much more recent (by 8 years and 4 months) than the K-3 II, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently. 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 G9 II has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

Both cameras have the capacity to capture high quality composite images by combining multiple shots after shifting the 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-G9 II has a native sensitivity range from ISO 100 to ISO 25600, which can be extended to ISO 50-25600. The corresponding ISO settings for the Pentax K-3 II are ISO 100 to ISO 51200 (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.

G9 II versus K-3 II MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. This service determines an overall sensor rating, as well as sub-scores for low-light sensitivity ("DXO Sports"), dynamic range ("DXO Landscape"), and color depth ("DXO Portrait"). The 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
  empty Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Panasonic G9 II Four Thirds 25.0 5776 43365.7K/60p23.413.5171078
2.
 
Pentax K-3 II APS-C 24.1 6016 40001080/60i23.613.6110680
3.
 
Nikon Z6 II Full Frame 24.3 6048 40244K/60p25.014.4330394
4.
 
Nikon Zf Full Frame 24.3 6048 40244K/60p25.414.7324396
5.
 
OM System OM-1 Four Thirds 20.2 5184 38884K/60p23.413.4155377
6.
 
Panasonic G9 Four Thirds 20.2 5184 38884K/60p23.112.8113874
7.
 
Panasonic GH5 Four Thirds 20.2 5184 38884K/60p23.913.080777
8.
 
Panasonic GH5 II Four Thirds 20.2 5184 38884K/60p23.713.1113679
9.
 
Panasonic GH6 Four Thirds 25.0 5776 43365.7K/60p23.413.4155577
10.
 
Panasonic GH7 Four Thirds 25.0 5776 43365.7K/60p23.413.6178478
11.
 
Panasonic S5 Full Frame 24.0 6000 40004K/60p25.114.5269794
12.
 
Panasonic S5 II Full Frame 24.0 6000 40006K/30p25.414.6315896
13.
 
Pentax K-3 APS-C 24.1 6016 40001080/60i23.713.4121680
14.
 
Pentax K-3 III APS-C 25.6 6192 41284K/30p24.213.7208385
15.
 
Pentax K-5 APS-C 16.1 4928 32641080/25p23.714.1116282
16.
 
Pentax K-70 APS-C 24.0 6000 40001080/60i23.813.1163980
17.
 
Pentax KP APS-C 24.1 6016 40001080/60i23.913.2169981
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 also of capturing video footage. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the G9 II provides a higher video resolution than the K-3 II. It can shoot video footage at 5.7K/60p, while the Pentax is limited to 1080/60i.

Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. For example, the G9 II has an electronic viewfinder (3680k dots), while the K-3 II 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%), but the viewfinder of the G9 II has a higher magnification than the one of the K-3 II (0.8x vs 0.63x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The table below summarizes some of the other core capabilities of the Panasonic G9 II and Pentax K-3 II 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 G9 II3680 n3.0 / 1840 swivel Y 1/8000s 10.0/s n Y
2.
 
Pentax K-3 IIoptical Y3.2 / 1037 fixed n 1/8000s 8.3/s n Y
3.
 
Nikon Z6 II3690 Y3.2 / 2100 tilting Y 1/8000s 14.0/s n Y
4.
 
Nikon Zf3690 n3.2 / 2100 swivel Y 1/8000s 14.0/s n Y
5.
 
OM System OM-15760 n3.0 / 1640 swivel Y 1/8000s 10.0/s n Y
6.
 
Panasonic G93680 Y3.0 / 1040 swivel Y 1/8000s 20.0/s n Y
7.
 
Panasonic GH53680 n3.2 / 1620 swivel Y 1/8000s 12.0/s n Y
8.
 
Panasonic GH5 II3680 n3.0 / 1840 swivel Y 1/8000s 12.0/s n Y
9.
 
Panasonic GH63680 n3.0 / 1840 full-flex Y 1/8000s 14.0/s n Y
10.
 
Panasonic GH73680 n3.0 / 1840 full-flex Y 1/8000s 14.0/s n Y
11.
 
Panasonic S52360 n3.0 / 1840 swivel Y 1/8000s 7.0/s n Y
12.
 
Panasonic S5 II3680 n3.0 / 1840 swivel Y 1/8000s 9.0/s n Y
13.
 
Pentax K-3optical Y3.2 / 1037 fixed n 1/8000s 8.3/s Y Y
14.
 
Pentax K-3 IIIoptical Y3.2 / 1620 fixed Y 1/8000s 12.0/s n Y
15.
 
Pentax K-5optical Y3.0 / 921 fixed n 1/8000s 7.0/s Y Y
16.
 
Pentax K-70optical n3.0 / 921 swivel n 1/6000s 6.0/s Y Y
17.
 
Pentax KPoptical n3.0 / 921 tilting n 1/6000s 7.0/s Y Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The G9 II has a touchscreen, while the K-3 II has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

The G9 II has an articulated LCD that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in snapping selfies. In contrast, the K-3 II 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 G9 II is one of those camera that have an additional electronic shutter, which makes completely silent shooting possible. However, this mode is less suitable for photographing moving objects (risk of rolling shutter) or shooting under artificial light sources (risk of flickering).

The Panasonic G9 II and the Pentax K-3 II 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 G9 II and the K-3 II write their files to SDXC cards. Both cameras feature dual card slots, which can be very useful in case a memory card fails. The G9 II supports UHS-II cards (on both slots), while the K-3 II 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 Panasonic Lumix DC-G9 II and Pentax K-3 II 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 G9 IIYstereo / monoYYfull3.2Y-Y
2.
 
Pentax K-3 IIYmono / monoYYmini3.0---
3.
 
Nikon Z6 IIYstereo / monoYYmicro3.2Y-Y
4.
 
Nikon ZfYstereo / monoYYmicro3.2Y-Y
5.
 
OM System OM-1Ystereo / monoYYmicro3.0Y-Y
6.
 
Panasonic G9Ystereo / monoYYfull3.0Y-Y
7.
 
Panasonic GH5Ystereo / monoYYfull3.1Y-Y
8.
 
Panasonic GH5 IIYstereo / monoYYfull3.2Y-Y
9.
 
Panasonic GH6Ystereo / monoYYfull3.2Y-Y
10.
 
Panasonic GH7Ystereo / monoYYfull3.2Y-Y
11.
 
Panasonic S5Ystereo / monoYYmicro3.2Y-Y
12.
 
Panasonic S5 IIYstereo / monoYYfull3.2Y-Y
13.
 
Pentax K-3Ymono / monoYYmini3.0---
14.
 
Pentax K-3 IIIYstereo / monoYYmicro3.2Y-Y
15.
 
Pentax K-5Ystereo / monoY-mini2.0---
16.
 
Pentax K-70Ystereo / monoY-mini2.0Y--
17.
 
Pentax KPYstereo / monoY--2.0Y--

It is notable that the G9 II offers wifi support, while the K-3 II 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 K-3 II (unlike the G9 II) 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-3 II has an internal geolocalization sensor and can record GPS coordinates in its EXIF data.

The G9 II is a recent model that features in the current product line-up of Panasonic. In contrast, the K-3 II has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the K-3 II was succeeded by the Pentax K-3 III. Further information on the features and operation of the G9 II and K-3 II can be found, respectively, in the Panasonic G9 II Manual (free pdf) or the online Pentax K-3 II Manual.

Review summary

So how do things add up? Is the Panasonic G9 II better than the Pentax K-3 II or vice versa? Below is a summary of the relative strengths of each of the two contestants.

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Advantages of the Panasonic Lumix DC-G9 II:

  • Better video: Provides higher definition movie capture (5.7K/60p vs 1080/60i).
  • Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.8x vs 0.63x).
  • More detailed LCD: Has a higher resolution rear screen (1840k 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 (10 vs 8.3 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • Less heavy: Is lighter (by 142g or 18 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 modern: Reflects 8 years and 4 months of technical progress since the K-3 II launch.

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Reasons to prefer the Pentax K-3 II:

  • 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.
  • Longer lasting: Gets more shots (720 versus 390) out of a single battery charge.
  • 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.
  • More affordable: Was introduced into a lower priced category (42 percent cheaper at launch).
  • More heavily discounted: Has been around for much longer (launched in April 2015).

If the count of relative strengths (bullet points above) is taken as a measure, the G9 II is the clear winner of the match-up (18 : 8 points). However, the pertinence of the various camera strengths will differ across photographers, so that you might want to weigh individual camera traits according to their importance for your own imaging needs before making a camera decision. A professional wildlife photographer will view the differences between cameras in a way that diverges from the perspective of a family photog, and a person interested in architecture has distinct needs from a sports shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

G9 II 18:08 K-3 II

How about other alternatives? Do the specifications of the Panasonic G9 II and the Pentax K-3 II place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera and Best DSLR Camera listings whether the two cameras rank among the cream of the crop.

In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the G9 II or the K-3 II. User reviews that are available, for instance, at amazon can sometimes shed light on these issues, but such feedback is all too often partial, inconsistent, and inaccurate.

Expert reviews

This is why hands-on reviews by experts are important. The adjacent summary-table relays the overall verdicts of several of the most popular camera review sites (amateurphotographer [AP], cameralabs [CL], digitalcameraworld [DCW], dpreview [DPR], ephotozine [EPZ], photographyblog [PB]). As can be seen, the professional reviewers agree in many cases on the quality of different cameras, but sometimes their assessments diverge, reinforcing the earlier point that a camera decision is often a very personal choice.

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Expert Camera Reviews
  empty  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price
Street
Price
1.
 
Panasonic G9 II5/5..4.5/587/100..4.5/5 Sep 2023 US$ 1 899 amazon.com
2.
 
Pentax K-3 II4.5/5......5/55/5 Apr 2015 US$ 1 099ebay.com
3.
 
Nikon Z6 II4.5/5..4/589/1004.5/54.5/5 Oct 2020 US$ 1 999 amazon.com
4.
 
Nikon Zf4.5/5..4.5/590/1004.5/55/5 Sep 2023 US$ 1 999 amazon.com
5.
 
OM System OM-15/5....87/1005/54.5/5 Feb 2022 US$ 2 199ebay.com
6.
 
Panasonic G9..+ +5/585/1005/55/5 Nov 2017 US$ 1 699ebay.com
7.
 
Panasonic GH54.5/5+ +..85/1004.5/55/5 Jan 2017 US$ 1 999ebay.com
8.
 
Panasonic GH5 II4.5/5..4.5/585/1004.5/55/5 May 2021 US$ 1 699 amazon.com
9.
 
Panasonic GH65/5+ +5/587/1005/55/5 Feb 2022 US$ 2 199 amazon.com
10.
 
Panasonic GH7............ Jun 2024 US$ 2 199 amazon.com
11.
 
Panasonic S54.5/5+ +4.5/588/1004.5/54.5/5 Sep 2020 US$ 1 999 amazon.com
12.
 
Panasonic S5 II4.5/5+ +5/590/1004.5/55/5 Jan 2023 US$ 1 999 amazon.com
13.
 
Pentax K-34/5....83/1005/55/5 Oct 2013 US$ 1 299ebay.com
14.
 
Pentax K-3 III4/5..3/5..4.5/5.. Mar 2021 US$ 1 999 amazon.com
15.
 
Pentax K-54/5....83/1005/54.5/5 Sep 2010 US$ 1 099ebay.com
16.
 
Pentax K-704.5/5..4/579/1004.5/54.5/5 Jun 2016 US$ 649ebay.com
17.
 
Pentax KP4/5..3/582/1005/54.5/5 Jan 2017 US$ 1 099ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

Care should be taken when interpreting the review scores above, 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 comparisons of ratings among very different cameras or across long time periods have little meaning. 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: Panasonic G9 II vs Pentax K-3 II

    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 G9 II Pentax K-3 II
    Camera Type Mirrorless system camera Digital single lens reflex
    Camera Lens Micro Four Thirds lenses Pentax K mount lenses
    Launch Date September 2023 April 2015
    Launch Price USD 1,899 USD 1,099
    Sensor Specs Panasonic G9 II Pentax K-3 II
    Sensor Technology CMOS CMOS
    Sensor Format Four Thirds Sensor APS-C Sensor
    Sensor Size 17.3 x 13.0 mm 23.5 x 15.6 mm
    Sensor Area 224.9 mm2 366.6 mm2
    Sensor Diagonal 21.6 mm 28.2 mm
    Crop Factor 2.0x 1.5x
    Sensor Resolution 25 Megapixels 24.1 Megapixels
    Image Resolution 5776 x 4336 pixels 6016 x 4000 pixels
    Pixel Pitch 3.00 μm 3.90 μm
    Pixel Density 11.14 MP/cm2 6.56 MP/cm2
    Moiré control no AA filter no AA filter
    Movie Capability 5.7K/60p Video 1080/60i Video
    ISO Setting 100 - 25,600 ISO 100 - 51,200 ISO
    ISO Boost 50 - 25,600 ISO no Enhancement
    Image Processor Venus PRIME III
    DXO Sensor Quality (score) .. 80
    DXO Color Depth (bits) .. 23.6
    DXO Dynamic Range (EV) .. 13.6
    DXO Low Light (ISO) .. 1106
    Screen Specs Panasonic G9 II Pentax K-3 II
    Viewfinder Type Electronic viewfinder Optical viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.8x 0.63x
    Viewfinder Resolution 3680k dots
    Top-Level Screen no Top Display Control Panel
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.2inch
    LCD Resolution 1840k dots 1037k dots
    LCD Attachment Swivel screen Fixed screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Panasonic G9 II Pentax K-3 II
    Focus System On-Sensor Phase-detect Phase-detect AF
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/8000s 1/8000s
    Continuous Shooting 10 shutter flaps/s 8.3 shutter flaps/s
    Shutter Life Expectancy200 000 actuations200 000 actuations
    Electronic Shutterup to 1/32000sno E-Shutter
    Time-Lapse PhotographyIntervalometer built-inIntervalometer built-in
    Image StabilizationIn-body stabilizationIn-body stabilization
    Fill Flash no On-Board Flash no On-Board Flash
    Storage Medium SDXC cards SDXC cards
    Single or Dual Card Slots Dual card slots Dual card slots
    UHS card support Dual UHS-II UHS-I
    Connectivity Specs Panasonic G9 II Pentax K-3 II
    External Flash Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 3.2 USB 3.0
    HDMI Port full HDMI mini HDMI
    Microphone Port External MIC port External MIC port
    Headphone Socket Headphone port Headphone port
    Wifi Support Wifi built-in no Wifi
    Bluetooth Support Bluetooth built-in no Bluetooth
    Geotagging no internal GPS GPS built-in
    Body Specs Panasonic G9 II Pentax K-3 II
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type Panasonic DMW-BLK22 Pentax D-LI90
    Battery Life (CIPA)390 shots per charge720 shots per charge
    In-Camera Charging USB charging no USB charging
    Body Dimensions 134 x 102 x 90 mm
    (5.3 x 4.0 x 3.5 in)
    131 x 100 x 77 mm
    (5.2 x 3.9 x 3.0 in)
    Camera Weight 658 g (23.2 oz) 800 g (28.2 oz)
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