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Panasonic GM5 vs Pentax K-1 II

The Panasonic Lumix DMC-GM5 and the Pentax K-1 II are two digital cameras that were officially introduced, respectively, in September 2014 and February 2018. The GM5 is a mirrorless interchangeable lens camera, while the K-1 II is a DSLR. The cameras are based on a Four Thirds (GM5) and a full frame (K-1 II) sensor. The Panasonic has a resolution of 15.8 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 GM5
versus
Pentax K-1 II
Panasonic GM5   Pentax K-1 II
Mirrorless system camera Digital single lens reflex
Micro Four Thirds lenses Pentax K mount lenses
15.8 MP – Four Thirds sensor 36.2 MP – Full Frame sensor
1080/60p Video 1080/60i Video
ISO 200-25,600 ISO 100-819,200
Electronic viewfinder (1166k dots) Optical viewfinder
3.0" LCD – 921k dots 3.2" LCD – 1037k dots
Fixed touchscreen Fully flexible screen (no touchscreen)
5.8 shutter flaps per second 4.4 shutter flaps per second
Lens stabilization onlyIn-body stabilization
not weather sealedWeathersealed body
220 shots per battery charge670 shots per battery charge
99 x 60 x 36 mm, 211 g 137 x 110 x 86 mm, 1010 g
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Check GM5 offers at
ebay.com
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Check K-1 II price at
amazon.com

Going beyond this snapshot of core features and characteristics, what are the differences between the Panasonic Lumix DMC-GM5 and the Pentax K-1 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.

Body comparison

The side-by-side display below illustrates the physical size and weight of the Panasonic GM5 and the Pentax K-1 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 width, height and depth measures are rounded to the nearest millimeter.

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

Size Panasonic GM5 vs Pentax K-1 II
Compare GM5 versus K-1 II top
Comparison GM5 or K-1 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-1 II is considerably larger (154 percent) than the Panasonic GM5. Moreover, the K-1 II is substantially heavier (379 percent) than the GM5. It is noteworthy in this context that the K-1 II is splash and dust-proof, while the GM5 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 GM5 gets 220 shots out of its DMW-BLH7 battery, while the K-1 II can take 670 images on a single charge of its D-LI90 power pack.

The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. If you would like to visualize and compare a different camera combination, you can navigate to the CAM-parator app and make your selection from a broad list of cameras there.

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Body Specifications
    Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Panasonic GM5 99 mm 60 mm 36 mm 211 g 220 n Sep 2014 749ebay.com
2.
 
Pentax K-1 II 137 mm 110 mm 86 mm 1010 g 670 Y Feb 2018 1,999 amazon.com
3.
 
Panasonic S1R 149 mm 110 mm 97 mm 1016 g 380 Y Feb 2019 3,699 amazon.com
4.
 
Panasonic GX85 122 mm 71 mm 44 mm 426 g 290 n Apr 2016 799 amazon.com
5.
 
Panasonic G7 125 mm 86 mm 77 mm 410 g 350 n May 2015 649ebay.com
6.
 
Panasonic GH4 133 mm 93 mm 84 mm 560 g 500 Y Feb 2014 1,499ebay.com
7.
 
Panasonic LX100 115 mm 66 mm 55 mm 393 g 300 n Sep 2014 899ebay.com
8.
 
Panasonic G6 122 mm 85 mm 71 mm 390 g 340 n Apr 2013 599ebay.com
9.
 
Panasonic GM1 99 mm 55 mm 30 mm 204 g 230 n Oct 2013 749ebay.com
10.
 
Panasonic GX1 116 mm 68 mm 39 mm 318 g 320 n Nov 2011 699ebay.com
11.
 
Panasonic GH2 124 mm 90 mm 76 mm 442 g 330 n Sep 2010 899ebay.com
12.
 
Pentax K-1 137 mm 110 mm 86 mm 1010 g 760 Y Feb 2016 1,799ebay.com
13.
 
Ricoh GR II 117 mm 63 mm 35 mm 251 g 320 n Jun 2015 699 amazon.com
14.
 
Ricoh GR 117 mm 61 mm 35 mm 245 g 290 n Apr 2013 799ebay.com
15.
 
Sony A7R III 127 mm 96 mm 74 mm 650 g 650 Y Oct 2017 3,199ebay.com
16.
 
Sony A99 II 143 mm 104 mm 76 mm 849 g 490 Y Sep 2016 3,199ebay.com
17.
 
Sony A850 156 mm 117 mm 82 mm 895 g 880 Y Aug 2009 1,999ebay.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 obviously take relative prices into account. 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 GM5 was launched at a markedly lower price (by 63 percent) than the K-1 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 sensor inside a digital camera is one of the key determinants 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 Panasonic GM5 features a Four Thirds sensor and the Pentax K-1 II a full frame sensor. The sensor area in the K-1 II 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 GM5 has a native 4:3 aspect ratio, while the one in the K-1 II offers a 3:2 aspect.

Panasonic GM5 and Pentax K-1 II sensor measures

With 36.2MP, the K-1 II offers a higher resolution than the GM5 (15.8MP), but the K-1 II nevertheless has larger individual pixels (pixel pitch of 4.88μm versus 3.77μm for the GM5) due to its larger sensor. Moreover, the K-1 II is a much more recent model (by 3 years and 5 months) than the GM5, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that the K-1 II has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Pentax K-1 II implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the K-1 II 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 GM5 are 23 x 17.2 inches or 58.3 x 43.8 cm for good quality, 18.4 x 13.8 inches or 46.7 x 35 cm for very good quality, and 15.3 x 11.5 inches or 38.9 x 29.2 cm for excellent quality prints.

Unlike the GM5, the K-1 II 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 DMC-GM5 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 II are ISO 100 to ISO 819200 (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.

GM5 versus K-1 II MP

For many cameras, data on sensor performance has been reported by DXO Mark. 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 adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.

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Sensor Characteristics
    Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Panasonic GM5 Four Thirds 15.8 4592 34481080/60p22.111.772166
2.
 
Pentax K-1 II Full Frame 36.2 7360 49121080/60i25.114.0269893
3.
 
Panasonic S1R Full Frame 46.7 8368 55844K/60p26.414.13525100
4.
 
Panasonic GX85 Four Thirds 15.8 4592 34484K/30p22.912.666271
5.
 
Panasonic G7 Four Thirds 15.8 4592 34484K/30p22.812.490471
6.
 
Panasonic GH4 Four Thirds 15.9 4608 34564K/30p23.212.879174
7.
 
Panasonic LX100 Four Thirds 12.7 4112 30884K/30p22.312.555367
8.
 
Panasonic G6 Four Thirds 15.9 4608 34561080/60p21.311.563961
9.
 
Panasonic GM1 Four Thirds 15.8 4592 34481080/60i22.311.766066
10.
 
Panasonic GX1 Four Thirds 15.8 4592 34481080/60p20.810.670355
11.
 
Panasonic GH2 Four Thirds 15.9 4608 34561080/60i21.211.365560
12.
 
Pentax K-1 Full Frame 36.2 7360 49121080/60i25.414.6328096
13.
 
Ricoh GR II APS-C 16.1 4928 32641080/30p23.613.7107880
14.
 
Ricoh GR APS-C 16.1 4928 32641080/30p23.613.597278
15.
 
Sony A7R III Full Frame 42.2 7952 53044K/30p26.014.73523100
16.
 
Sony A99 II Full Frame 42.2 7952 53044K/30p25.413.4231792
17.
 
Sony A850 Full Frame 24.4 6048 4032none23.812.2141579
Note: DXO values in italics represent estimates based on sensor size and age.

Many modern cameras cannot only take still pictures, but also record videos. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the GM5 provides a higher frame rate than the K-1 II. It can shoot video footage at 1080/60p, 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 GM5 has an electronic viewfinder (1166k dots), while the K-1 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 K-1 II has a higher magnification than the one of the GM5 (0.70x vs 0.46x), 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 GM5, the Pentax K-1 II, and comparable cameras.

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Core Features
    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 GM51166 n3.0 / 921 fixed Y 1/500s 5.8/s n n
2.
 
Pentax K-1 IIoptical Y3.2 / 1037 full-flex n 1/8000s 4.4/s n Y
3.
 
Panasonic S1R5760 Y3.2 / 2100 full-flex Y 1/8000s 9.0/s n Y
4.
 
Panasonic GX852765 n3.0 / 1040 tilting Y 1/4000s 8.0/s Y Y
5.
 
Panasonic G72360 n3.0 / 1040 swivel Y 1/4000s 7.0/s Y n
6.
 
Panasonic GH42359 n3.0 / 1036 swivel Y 1/8000s 12.0/s Y n
7.
 
Panasonic LX1002764 n3.0 / 921 fixed n 1/4000s 11.0/s n Y
8.
 
Panasonic G61440 n3.0 / 1036 swivel Y 1/4000s 7.0/s Y n
9.
 
Panasonic GM1none n3.0 / 1036 fixed Y 1/500s 5.0/s Y n
10.
 
Panasonic GX1optional n3.0 / 460 fixed Y 1/4000s 4.2/s Y n
11.
 
Panasonic GH21534 n3.0 / 460 swivel n 1/4000s 3.0/s Y n
12.
 
Pentax K-1optical Y3.2 / 1037 full-flex n 1/8000s 4.4/s n Y
13.
 
Ricoh GR IIoptional n3.0 / 1230 fixed n 1/4000s 4.0/s Y n
14.
 
Ricoh GRoptional n3.0 / 1230 fixed n 1/4000s 4.0/s Y n
15.
 
Sony A7R III3686 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
16.
 
Sony A99 II2400 Y3.0 / 1229 full-flex n 1/8000s 12.0/s n Y
17.
 
Sony A850optical Y3.0 / 922 fixed n 1/8000s 3.0/s n Y
Notes: *) 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 GM5 has a touchscreen, while the K-1 II 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 GM5 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 GM5 and the Pentax K-1 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 GM5 and the K-1 II write their files to SDXC cards. The K-1 II features dual card slots, which can be very useful in case a memory card fails. In contrast, the GM5 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.

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 DMC-GM5 and Pentax K-1 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
    Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Panasonic GM5Ystereo / mono--micro2.0Y--
2.
 
Pentax K-1 IIYstereo / monoYYmicro2.0Y--
3.
 
Panasonic S1RYstereo / monoYYfull3.1Y-Y
4.
 
Panasonic GX85Ystereo / mono--micro2.0Y--
5.
 
Panasonic G7Ystereo / monoY-micro2.0Y--
6.
 
Panasonic GH4Ystereo / monoYYmicro2.0YY-
7.
 
Panasonic LX100Ystereo / mono--micro2.0YY-
8.
 
Panasonic G6Ystereo / monoY-mini2.0YY-
9.
 
Panasonic GM1-stereo / mono--micro2.0Y--
10.
 
Panasonic GX1Ystereo / mono--mini2.0---
11.
 
Panasonic GH2Ystereo / monoY-mini2.0---
12.
 
Pentax K-1Ystereo / monoYYmicro2.0Y--
13.
 
Ricoh GR IIYstereo / mono--micro2.0YY-
14.
 
Ricoh GRYmono / mono--micro2.0---
15.
 
Sony A7R IIIYstereo / monoYYmicro3.1YYY
16.
 
Sony A99 IIYstereo / monoYYmicro2.0YYY
17.
 
Sony A850Y- / ---mini2.0---

It is notable that the K-1 II has a headphone jack, which makes it possible to attach external headphones and monitor the quality of sound during the recording process. The GM5 lacks such a headphone port.

Studio photographers will appreciate that the Pentax K-1 II (unlike the GM5) 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 II has an internal geolocalization sensor and can record GPS coordinates in its EXIF data.

The K-1 II is a recent model that features in the current product line-up of Pentax. In contrast, the GM5 has been discontinued (but can be found pre-owned on ebay). There has not been a direct replacement model for the GM5 from Panasonic. 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 what conclusions can be drawn? Is there a clear favorite between the Panasonic GM5 and the Pentax K-1 II? Which camera is better? The listing below highlights the relative strengths of the two models.

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Arguments in favor of the Panasonic Lumix DMC-GM5:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Better video: Provides higher movie framerates (1080/60p versus 1080/60i).
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
  • Faster burst: Shoots at higher frequency (5.8 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 (99x60mm vs 137x110mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 799g or 79 percent) and hence easier to carry around.
  • More legacy lens friendly: Can take a broad range of non-native lenses via adapters.
  • More affordable: Was introduced into a lower priced category (63 percent cheaper at launch).
  • More heavily discounted: Has been available for much longer (launched in September 2014).

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Reasons to prefer the Pentax K-1 II:

  • More detail: Has more megapixels (36.2 vs 15.8MP), which boosts linear resolution by 54%.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • High quality composites: Can combine several shots after pixel-shifting its sensor.
  • Better image quality: Is equipped with a larger and more technologically advanced sensor.
  • Richer colors: The sensor size advantage translates into images with better, more accurate colors.
  • More dynamic range: Larger sensor captures a wider spectrum of light and dark details.
  • Better low-light sensitivity: Larger sensor produces good images even in poorly lit environments.
  • 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.
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.70x vs 0.46x).
  • 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 detailed LCD: Has a higher resolution rear screen (1037k vs 921k dots).
  • 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 1/500s) to freeze action.
  • Longer lasting: Gets more shots (670 versus 220) out of a single battery charge.
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
  • Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
  • 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 modern: Reflects 3 years and 5 months of technical progress since the GM5 launch.

If the count of relative strengths (bullet points above) is taken as a measure, the K-1 II is the clear winner of the contest (23 : 11 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 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.

GM5 11:23 K-1 II

How about other alternatives? Do the specifications of the Panasonic GM5 and the Pentax K-1 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 specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it says little about, for example, the shooting experience and imaging performance of the GM5 and the K-1 II 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 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
     Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Panasonic GM53.5/5+..77/1005/54.5/5 Sep 2014 749ebay.com
2.
 
Pentax K-1 II....4.5/579/1004.5/54.5/5 Feb 2018 1,999 amazon.com
3.
 
Panasonic S1R4.5/5..4.6/589/1004.5/54.5/5 Feb 2019 3,699 amazon.com
4.
 
Panasonic GX854.5/5+ +..82/1005/55/5 Apr 2016 799 amazon.com
5.
 
Panasonic G74/5+ +..80/1005/54.5/5 May 2015 649ebay.com
6.
 
Panasonic GH45/5+ +..85/1005/55/5 Feb 2014 1,499ebay.com
7.
 
Panasonic LX1005/5+ +..85/1005/55/5 Sep 2014 899ebay.com
8.
 
Panasonic G64/5+ +....5/54.5/5 Apr 2013 599ebay.com
9.
 
Panasonic GM13/5+..78/1005/54.5/5 Oct 2013 749ebay.com
10.
 
Panasonic GX13/5+..77/1004.5/54.5/5 Nov 2011 699ebay.com
11.
 
Panasonic GH25/5+ +..79/1004.5/55/5 Sep 2010 899ebay.com
12.
 
Pentax K-15/5....84/1005/55/5 Feb 2016 1,799ebay.com
13.
 
Ricoh GR II........4.5/54.5/5 Jun 2015 699 amazon.com
14.
 
Ricoh GR5/5....79/1004.5/54.5/5 Apr 2013 799ebay.com
15.
 
Sony A7R III..+ +4/590/1004.5/55/5 Oct 2017 3,199ebay.com
16.
 
Sony A99 II....4.5/585/1004.5/54.5/5 Sep 2016 3,199ebay.com
17.
 
Sony A8503/5....75/100..4.5/5 Aug 2009 1,999ebay.com
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 comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

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Check GM5 offers at
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Check K-1 II price at
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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 use the search menu 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 GM5 vs Pentax K-1 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 GM5 Pentax K-1 II
    Camera Type Mirrorless system camera Digital single lens reflex
    Camera Lens Micro Four Thirds lenses Pentax K mount lenses
    Launch Date September 2014 February 2018
    Launch Price USD 749 USD 1,999
    Sensor Specs Panasonic GM5 Pentax K-1 II
    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 15.8 Megapixels 36.2 Megapixels
    Image Resolution 4592 x 3448 pixels 7360 x 4912 pixels
    Pixel Pitch 3.77 μm 4.88 μm
    Pixel Density 7.04 MP/cm2 4.20 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability 1080/60p Video 1080/60i Video
    ISO Setting 200 - 25,600 ISO 100 - 819,200 ISO
    ISO Boost 100 - 25,600 ISO no Enhancement
    Image Processor Venus PRIME IV
    DXO Sensor Quality (score) 66 ..
    DXO Color Depth (bits) 22.1 ..
    DXO Dynamic Range (EV) 11.7 ..
    DXO Low Light (ISO) 721 ..
    Screen Specs Panasonic GM5 Pentax K-1 II
    Viewfinder Type Electronic viewfinder Optical viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.46x 0.70x
    Viewfinder Resolution 1166k dots
    Top-Level Screen no Top Display Control Panel
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.2inch
    LCD Resolution 921k dots 1037k dots
    LCD Attachment Fixed screen Fully flexible screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Panasonic GM5 Pentax K-1 II
    Focus System Contrast-detect AF Phase-detect AF
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/500s 1/8000s
    Continuous Shooting 5.8 shutter flaps/s 4.4 shutter flaps/s
    Electronic Shutterup to 1/16000sno E-Shutter
    Time-Lapse PhotographyIntervalometer built-inIntervalometer built-in
    Image StabilizationLens stabilization onlyIn-body stabilization
    Fill Flash no On-Board Flash no On-Board Flash
    Storage Medium SDXC cards SDXC cards
    Second Storage Option Single card slot Dual card slots
    UHS card support UHS-I UHS-I
    Connectivity Specs Panasonic GM5 Pentax K-1 II
    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
    Geotagging no internal GPS GPS built-in
    Body Specs Panasonic GM5 Pentax K-1 II
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type DMW-BLH7 D-LI90
    Battery Life (CIPA)220 shots per charge670 shots per charge
    Body Dimensions 99 x 60 x 36 mm
    (3.9 x 2.4 x 1.4 in)
    137 x 110 x 86 mm
    (5.4 x 4.3 x 3.4 in)
    Camera Weight 211 g (7.4 oz) 1010 g (35.6 oz)
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