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Panasonic G2 vs Pentax K-3 III

The Panasonic Lumix DMC-G2 and the Pentax K-3 III are two digital cameras that were officially introduced, respectively, in March 2010 and March 2021. The G2 is a mirrorless interchangeable lens camera, while the K-3 III is a DSLR. The cameras are based on a Four Thirds (G2) and an APS-C (K-3 III) sensor. The Panasonic has a resolution of 12 megapixels, whereas the Pentax provides 25.6 MP.

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

Headline Specifications
Panasonic G2
versus
Pentax K-3 III
Panasonic G2   Pentax K-3 III
Mirrorless system camera Digital single lens reflex
Micro Four Thirds lenses Pentax K mount lenses
12 MP – Four Thirds sensor 25.6 MP – APS-C sensor
720/30p Video 4K/30p Video
ISO 100-6,400 ISO 100-160,000
Electronic viewfinder (1440k dots) Optical viewfinder
3.0" LCD – 460k dots 3.2" LCD – 1620k dots
Swivel touchscreen Fixed touchscreen
2.6 shutter flaps per second 12 shutter flaps per second
Lens stabilization onlyIn-body stabilization
not weather sealedWeathersealed body
360 shots per battery charge800 shots per battery charge
124 x 84 x 74 mm, 428 g 135 x 104 x 74 mm, 820 g
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Check G2 offers at
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Check K-3 III price at
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Going beyond this snapshot of core features and characteristics, what are the differences between the Panasonic Lumix DMC-G2 and the Pentax K-3 III? 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 physical size and weight of the Panasonic G2 and the Pentax K-3 III are illustrated in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive views from the front, the top, and the rear side are shown. All width, height and depth measures are rounded to the nearest millimeter.

The G2 can be obtained in three different colors (black, blue, red), while the K-3 III is available in two color-versions (black, silver).

Size Panasonic G2 vs Pentax K-3 III
Compare G2 versus K-3 III top
Comparison G2 or K-3 III 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 III is notably larger (35 percent) than the Panasonic G2. Moreover, the K-3 III is substantially heavier (92 percent) than the G2. It is noteworthy in this context that the K-3 III is splash and dust-proof, while the G2 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 G2 gets 360 shots out of its Panasonic DMW-BLB13 battery, while the K-3 III can take 800 images on a single charge of its Pentax D-LI90 power pack.

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, 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
# image Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Panasonic G2 124 mm 84 mm 74 mm 428 g 360 n Mar 2010 599ebay.com
2.
 
Pentax K-3 III 135 mm 104 mm 74 mm 820 g 800 Y Mar 2021 1,999 amazon.com
3.
 
Fujifilm X-H1 140 mm 97 mm 86 mm 673 g 310 Y Feb 2018 1,899ebay.com
4.
 
Olympus E-PL2 114 mm 72 mm 42 mm 362 g 280 n Jan 2011 599ebay.com
5.
 
Panasonic GF5 108 mm 67 mm 37 mm 267 g 360 n Apr 2012 499ebay.com
6.
 
Panasonic G3 115 mm 84 mm 47 mm 336 g 270 n May 2011 599ebay.com
7.
 
Panasonic GF3 108 mm 67 mm 32 mm 264 g 300 n Jun 2011 549ebay.com
8.
 
Panasonic G10 124 mm 84 mm 74 mm 388 g 380 n Mar 2010 499ebay.com
9.
 
Panasonic GF2 113 mm 68 mm 33 mm 310 g 300 n Nov 2010 549ebay.com
10.
 
Panasonic GH2 124 mm 90 mm 76 mm 442 g 330 n Sep 2010 899ebay.com
11.
 
Panasonic GF1 119 mm 71 mm 36 mm 385 g 380 n Sep 2009 749ebay.com
12.
 
Panasonic GH1 124 mm 90 mm 45 mm 385 g 300 n Mar 2009 899ebay.com
13.
 
Panasonic G1 124 mm 84 mm 45 mm 360 g 410 n Sep 2008 599ebay.com
14.
 
Pentax KP 132 mm 101 mm 76 mm 703 g 390 Y Jan 2017 1,099ebay.com
15.
 
Pentax K-70 126 mm 93 mm 74 mm 688 g 410 Y Jun 2016 649ebay.com
16.
 
Pentax K-3 II 131 mm 100 mm 77 mm 800 g 720 Y Apr 2015 1,099ebay.com
17.
 
Pentax K-3 131 mm 100 mm 77 mm 800 g 560 Y Oct 2013 1,299ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
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Any camera decision will obviously take relative prices into account. 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 G2 was launched at a markedly lower price (by 70 percent) than the K-3 III, which puts it into a different market segment. Usually, retail prices stay at first close to the launch price, but after several months, discounts become available. Later in the product cycle and, in particular, when the replacement model is about to appear, further discounting and stock clearance sales often push the camera price considerably down. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.

Sensor comparison

The imaging sensor is at the core of digital cameras and its size is one of the main determining factors of image quality. 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. Moreover, a large sensor camera will give the photographer more control over depth-of-field in the image and, thus, the ability to better 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 G2 features a Four Thirds sensor and the Pentax K-3 III an APS-C sensor. The sensor area in the K-3 III is 60 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 G2 has a native 4:3 aspect ratio, while the one in the K-3 III offers a 3:2 aspect.

Panasonic G2 and Pentax K-3 III sensor measures

With 25.6MP, the K-3 III offers a higher resolution than the G2 (12MP), but the K-3 III has smaller individual pixels (pixel pitch of 3.76μm versus 4.33μm for the G2). Yet, the K-3 III is a much more recent model (by 11 years) than the G2, 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 the K-3 III has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Pentax K-3 III implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the K-3 III for good quality output (200 dots per inch) amounts to 31 x 20.6 inches or 78.6 x 52.4 cm, for very good quality (250 dpi) 24.8 x 16.5 inches or 62.9 x 41.9 cm, and for excellent quality (300 dpi) 20.6 x 13.8 inches or 52.4 x 35 cm. The corresponding values for the Panasonic G2 are 20 x 15 inches or 50.8 x 38.1 cm for good quality, 16 x 12 inches or 40.6 x 30.5 cm for very good quality, and 13.3 x 10 inches or 33.9 x 25.4 cm for excellent quality prints.

Unlike the G2, the K-3 III has the capacity to capture high quality composite images (YESMP) 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-G2 has a native sensitivity range from ISO 100 to ISO 6400. The corresponding ISO settings for the Pentax K-3 III are ISO 100 to ISO 160000 (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.

G2 versus K-3 III 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 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
# image Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Panasonic G2 Four Thirds 12.0 4000 3000720/30p21.210.349353
2.
 
Pentax K-3 III APS-C 25.6 6192 41284K/30p24.213.7208385
3.
 
Fujifilm X-H1 APS-C 24.0 6000 40004K/30p24.013.3180682
4.
 
Olympus E-PL2 Four Thirds 12.2 4032 3024720/30p21.410.257355
5.
 
Panasonic GF5 Four Thirds 12.0 4000 30001080/60i20.510.057350
6.
 
Panasonic G3 Four Thirds 15.8 4592 34481080/60i21.010.666756
7.
 
Panasonic GF3 Four Thirds 12.0 4000 30001080/60i20.610.145950
8.
 
Panasonic G10 Four Thirds 12.0 4000 3000720/30p21.210.141152
9.
 
Panasonic GF2 Four Thirds 12.0 4000 30001080/60i21.210.350654
10.
 
Panasonic GH2 Four Thirds 15.9 4608 34561080/60i21.211.365560
11.
 
Panasonic GF1 Four Thirds 12.0 4000 3000720/30p21.210.351354
12.
 
Panasonic GH1 Four Thirds 12.0 4000 30001080/24p21.611.677264
13.
 
Panasonic G1 Four Thirds 12.0 4000 3000none21.110.346353
14.
 
Pentax KP APS-C 24.1 6016 40001080/60i23.913.2169981
15.
 
Pentax K-70 APS-C 24.0 6000 40001080/60i23.813.1163980
16.
 
Pentax K-3 II APS-C 24.1 6016 40001080/60i23.613.6110680
17.
 
Pentax K-3 APS-C 24.1 6016 40001080/60i23.713.4121680
Note: DXO values in italics represent estimates based on sensor size and age.
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Many modern cameras are not only capable of taking still images, but can also record movies. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the K-3 III provides a better video resolution than the G2. It can shoot movie footage at 4K/30p, while the Panasonic is limited to 720/30p.

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Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. For example, the G2 has an electronic viewfinder (1440k dots), while the K-3 III 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 G2 and Pentax K-3 III in connection with corresponding information for a sample of similar cameras.

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Core Features
# image 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 G21440 n3.0 / 460 swivel Y 1/4000s 2.6/s Y n
2.
 
Pentax K-3 IIIoptical Y3.2 / 1620 fixed Y 1/8000s 12.0/s n Y
3.
 
Fujifilm X-H13690 Y3.0 / 1040 full-flex Y 1/8000s 14.0/s n Y
4.
 
Olympus E-PL2optional n3.0 / 460 fixed n 1/4000s 3.0/s Y Y
5.
 
Panasonic GF5none n3.0 / 920 fixed Y 1/4000s 4.0/s Y n
6.
 
Panasonic G31440 n3.0 / 460 swivel Y 1/4000s 4.0/s Y n
7.
 
Panasonic GF3none n3.0 / 460 fixed Y 1/4000s 3.2/s Y n
8.
 
Panasonic G10202 n3.0 / 460 fixed n 1/4000s 2.6/s Y n
9.
 
Panasonic GF2optional n3.0 / 460 fixed Y 1/4000s 2.6/s Y n
10.
 
Panasonic GH21534 n3.0 / 460 swivel n 1/4000s 3.0/s Y n
11.
 
Panasonic GF1optional n3.0 / 460 fixed n 1/4000s 3.0/s Y n
12.
 
Panasonic GH11440 n3.0 / 460 swivel n 1/4000s 3.0/s Y n
13.
 
Panasonic G11440 n3.0 / 460 swivel n 1/4000s 3.0/s Y n
14.
 
Pentax KPoptical n3.0 / 921 tilting n 1/6000s 7.0/s Y Y
15.
 
Pentax K-70optical n3.0 / 921 swivel n 1/6000s 6.0/s Y Y
16.
 
Pentax K-3 IIoptical Y3.2 / 1037 fixed n 1/8000s 8.3/s n Y
17.
 
Pentax K-3optical Y3.2 / 1037 fixed n 1/8000s 8.3/s Y Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.
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One difference between the cameras concerns the presence of an on-board flash. The G2 has one, while the K-3 III does not. While the built-in flash of the G2 is not very powerful, it can at times be useful as a fill-in light.

The G2 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 III does not have a selfie-screen.

The Pentax K-3 III has 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 G2 and the K-3 III write their files to SDXC cards. The K-3 III features dual card slots, which can be very useful in case a memory card fails. In contrast, the G2 only has one slot. The K-3 III supports UHS-II cards on its first slot and UHS-I on its second one, while the G2 cannot take advantage of Ultra High Speed SD cards.

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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 DMC-G2 and Pentax K-3 III and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
# image Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Panasonic G2Ystereo / mono--mini2.0---
2.
 
Pentax K-3 IIIYstereo / monoYYmicro3.2Y-Y
3.
 
Fujifilm X-H1Ystereo / monoY-micro3.0Y--
4.
 
Olympus E-PL2Ystereo / ---mini2.0---
5.
 
Panasonic GF5-stereo / mono--mini2.0---
6.
 
Panasonic G3Ystereo / mono--mini2.0---
7.
 
Panasonic GF3-stereo / mono--mini2.0---
8.
 
Panasonic G10Ymono / ---mini2.0---
9.
 
Panasonic GF2Ystereo / mono--mini2.0---
10.
 
Panasonic GH2Ystereo / monoY-mini2.0---
11.
 
Panasonic GF1Ymono / mono--mini2.0---
12.
 
Panasonic GH1Ystereo / -Y-mini2.0---
13.
 
Panasonic G1Y- / ---mini2.0---
14.
 
Pentax KPYstereo / monoY--2.0Y--
15.
 
Pentax K-70Ystereo / monoY-mini2.0Y--
16.
 
Pentax K-3 IIYmono / monoYYmini3.0---
17.
 
Pentax K-3Ymono / monoYYmini3.0---
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It is notable that the K-3 III offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the G2 does not provide wifi capability.

Studio photographers will appreciate that the Pentax K-3 III (unlike the G2) 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 III has an internal geolocalization sensor and can record GPS coordinates in its EXIF data.

The K-3 III is a recent model that features in the current product line-up of Pentax. In contrast, the G2 has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the G2 was succeeded by the Panasonic G3. Further information on the features and operation of the G2 and K-3 III can be found, respectively, in the Panasonic G2 Manual (free pdf) or the online Pentax K-3 III Manual.

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Review summary

So how do things add up? Is there a clear favorite between the Panasonic G2 and the Pentax K-3 III? Which camera is better? The listing below highlights the relative strengths of the two models.

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Advantages of the Panasonic Lumix DMC-G2:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • More compact: Is smaller (124x84mm vs 135x104mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 392g or 48 percent) and hence easier to carry around.
  • 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.
  • More affordable: Was introduced into a lower priced category (70 percent cheaper at launch).
  • More heavily discounted: Has been available for much longer (launched in March 2010).

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Reasons to prefer the Pentax K-3 III:

  • More detail: Has more megapixels (25.6 vs 12MP), which boosts linear resolution by 49%.
  • 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 video: Provides higher definition movie capture (4K/30p vs 720/30p).
  • 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 detailed LCD: Has a higher resolution rear screen (1620k vs 460k dots).
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • Faster burst: Shoots at higher frequency (12 vs 2.6 flaps/sec) to capture the decisive moment.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • Longer lasting: Gets more shots (800 versus 360) 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.
  • Faster data transfer: Supports a more advanced USB protocol (3.2 vs 2.0).
  • 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.
  • 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.
  • Faster buffer clearing: Supports Ultra High Speed (UHS-II and UHS-I) SDXC cards.
  • More modern: Reflects 11 years of technical progress since the G2 launch.

If the count of individual advantages (bullet points above) is taken as a guide, the K-3 III is the clear winner of the contest (28 : 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 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.

G2 10:28 K-3 III

How about other alternatives? Do the specifications of the Panasonic G2 and the Pentax K-3 III 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 incomplete and does no justice, for example, to the way the G2 or the K-3 III perform in practice. 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
# image  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Panasonic G2......72/1004/54.5/5 Mar 2010 599ebay.com
2.
 
Pentax K-3 III4/5..3/5..4.5/5.. Mar 2021 1,999 amazon.com
3.
 
Fujifilm X-H1..+5/586/1004.5/54.5/5 Feb 2018 1,899ebay.com
4.
 
Olympus E-PL23/583/100..71/1004.5/54.5/5 Jan 2011 599ebay.com
5.
 
Panasonic GF53/5......4.5/54.5/5 Apr 2012 499ebay.com
6.
 
Panasonic G33/5+ +..75/1004.5/55/5 May 2011 599ebay.com
7.
 
Panasonic GF33/582/100..71/1004.5/54/5 Jun 2011 549ebay.com
8.
 
Panasonic G103/5....70/1004/54/5 Mar 2010 499ebay.com
9.
 
Panasonic GF23/582/100..70/1004.5/54.5/5 Nov 2010 549ebay.com
10.
 
Panasonic GH25/5+ +..79/1004.5/55/5 Sep 2010 899ebay.com
11.
 
Panasonic GF1..85/100..69/1004.5/54.5/5 Sep 2009 749ebay.com
12.
 
Panasonic GH1..+ +..72/1004.5/54.5/5 Mar 2009 899ebay.com
13.
 
Panasonic G1..+ +..70/1004/54.5/5 Sep 2008 599ebay.com
14.
 
Pentax KP4/5..3/582/1005/54.5/5 Jan 2017 1,099ebay.com
15.
 
Pentax K-704.5/5..4/579/1004.5/54.5/5 Jun 2016 649ebay.com
16.
 
Pentax K-3 II4.5/5......5/55/5 Apr 2015 1,099ebay.com
17.
 
Pentax K-34/5....83/1005/55/5 Oct 2013 1,299ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.
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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. 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. 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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Other camera comparisons

Did this review help to inform your camera decision process? In case you are interested in seeing how other cameras pair up, just make a corresponding selection in the search boxes below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Panasonic G2 vs Pentax K-3 III

    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 G2 Pentax K-3 III
    Camera Type Mirrorless system camera Digital single lens reflex
    Camera Lens Micro Four Thirds lenses Pentax K mount lenses
    Launch Date March 2010 March 2021
    Launch Price USD 599 USD 1,999
    Sensor Specs Panasonic G2 Pentax K-3 III
    Sensor Technology CMOS CMOS
    Sensor Format Four Thirds Sensor APS-C Sensor
    Sensor Size 17.3 x 13.0 mm 23.3 x 15.5 mm
    Sensor Area 224.9 mm2 361.15 mm2
    Sensor Diagonal 21.6 mm 28 mm
    Crop Factor 2.0x 1.5x
    Sensor Resolution 12 Megapixels 25.6 Megapixels
    Image Resolution 4000 x 3000 pixels 6192 x 4128 pixels
    Pixel Pitch 4.33 μm 3.76 μm
    Pixel Density 5.34 MP/cm2 7.08 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability 720/30p Video 4K/30p Video
    ISO Setting 100 - 6,400 ISO 100 - 160,000 ISO
    Image Processor Venus HD II PRIME V
    DXO Sensor Quality (score) 53 ..
    DXO Color Depth (bits) 21.2 ..
    DXO Dynamic Range (EV) 10.3 ..
    DXO Low Light (ISO) 493 ..
    Screen Specs Panasonic G2 Pentax K-3 III
    Viewfinder Type Electronic viewfinder Optical viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.70x 0.70x
    Viewfinder Resolution 1440k dots
    Top-Level Screen no Top Display Control Panel
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.2inch
    LCD Resolution 460k dots 1620k dots
    LCD Attachment Swivel screen Fixed screen
    Touch Input Touchscreen Touchscreen
    Shooting Specs Panasonic G2 Pentax K-3 III
    Focus System Contrast-detect AF Phase-detect AF
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/4000s 1/8000s
    Continuous Shooting 2.6 shutter flaps/s 12 shutter flaps/s
    Time-Lapse Photographyno IntervalometerIntervalometer built-in
    Image StabilizationLens stabilization onlyIn-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 no Single UHS-II
    Connectivity Specs Panasonic G2 Pentax K-3 III
    External Flash Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 3.2
    HDMI Port mini HDMI micro HDMI
    Microphone Port no MIC socket External MIC port
    Headphone Socket no Headphone port Headphone port
    Wifi Support no Wifi Wifi built-in
    Bluetooth Support no Bluetooth Bluetooth built-in
    Geotagging no internal GPS GPS built-in
    Body Specs Panasonic G2 Pentax K-3 III
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type Panasonic DMW-BLB13 Pentax D-LI90
    Battery Life (CIPA)360 shots per charge800 shots per charge
    Body Dimensions 124 x 84 x 74 mm
    (4.9 x 3.3 x 2.9 in)
    135 x 104 x 74 mm
    (5.3 x 4.1 x 2.9 in)
    Camera Weight 428 g (15.1 oz) 820 g (28.9 oz)
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