Panasonic G3 vs Pentax 645Z
The Panasonic Lumix DMC-G3 and the Pentax 645Z are two digital cameras that were revealed to the public, respectively, in May 2011 and April 2014. The G3 is a mirrorless interchangeable lens camera, while the 645Z is a DSLR. The cameras are based on a Four Thirds (G3) and a medium format (645Z) sensor. The Panasonic has a resolution of 15.8 megapixels, whereas the Pentax provides 51.1 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
Going beyond this snapshot of core features and characteristics, what are the differences between the Panasonic Lumix DMC-G3 and the Pentax 645Z? Which one should you buy? Read on to find out how these two cameras compare with respect to their body size, their imaging sensors, their shooting features, their input-output connections, and their reception by expert reviewers.
The side-by-side display below illustrates the physical size and weight of the Panasonic G3 and the Pentax 645Z. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All size dimensions are rounded to the nearest millimeter.
The G3 can be obtained in four different colors (black, brown, red, white), while the 645Z is only available in black.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Pentax 645Z is considerably larger (89 percent) than the Panasonic G3. Moreover, the 645Z is substantially heavier (361 percent) than the G3. It is noteworthy in this context that the 645Z is splash and dust-proof, while the G3 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.
The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. In case you want to display and compare another camera duo, you can use the CAM-parator app to select your camera combination among a large number of options.
|1.||Panasonic G3||115 mm||84 mm||47 mm||336 g||270||n||May 2011||599||ebay.com|
|2.||Pentax 645Z||156 mm||117 mm||123 mm||1550 g||650||Y||Apr 2014||8,499||amazon.com|
|3.||Canon 5DS||152 mm||116 mm||76 mm||930 g||700||Y||Feb 2015||3,699||amazon.com|
|4.||Canon 5DS R||152 mm||116 mm||76 mm||930 g||700||Y||Feb 2015||3,699||amazon.com|
|5.||Hasselblad X1D||150 mm||98 mm||71 mm||725 g||..||Y||Jun 2016||8,995||ebay.com|
|6.||Leica SL||147 mm||104 mm||39 mm||847 g||400||Y||Oct 2015||7,450||ebay.com|
|7.||Panasonic G6||122 mm||85 mm||71 mm||390 g||340||n||Apr 2013||599||ebay.com|
|8.||Panasonic GF6||111 mm||65 mm||38 mm||323 g||340||n||Apr 2013||499||ebay.com|
|9.||Panasonic G5||120 mm||83 mm||71 mm||396 g||320||n||Jul 2012||599||ebay.com|
|10.||Panasonic GF3||108 mm||67 mm||32 mm||264 g||300||n||Jun 2011||549||ebay.com|
|11.||Panasonic GX1||116 mm||68 mm||39 mm||318 g||320||n||Nov 2011||699||ebay.com|
|12.||Panasonic G10||124 mm||84 mm||74 mm||388 g||380||n||Mar 2010||499||ebay.com|
|13.||Panasonic G2||124 mm||84 mm||74 mm||428 g||360||n||Mar 2010||599||ebay.com|
|14.||Panasonic GF2||113 mm||68 mm||33 mm||310 g||300||n||Nov 2010||549||ebay.com|
|15.||Panasonic GH2||124 mm||90 mm||76 mm||442 g||330||n||Sep 2010||899||ebay.com|
|16.||Panasonic G1||124 mm||84 mm||45 mm||360 g||410||n||Sep 2008||599||ebay.com|
|17.||Pentax 645D||156 mm||117 mm||119 mm||1480 g||800||Y||Mar 2010||9,995||ebay.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 manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The G3 was launched at a markedly lower price (by 93 percent) than the 645Z, 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.
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 tend to have larger individual pixels that provide better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixel-units 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 G3 features a Four Thirds sensor and the Pentax 645Z a medium format sensor. The sensor area in the 645Z is 539 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.0 and 0.79. Both cameras feature a native aspect ratio (sensor width to sensor height) of 4:3.
With 51.1MP, the 645Z offers a higher resolution than the G3 (15.8MP), but the 645Z nevertheless has larger individual pixels (pixel pitch of 5.30μm versus 3.77μm for the G3) due to its larger sensor. Moreover, the 645Z is a much more recent model (by 2 years and 11 months) than the G3, 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 645Z has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
The resolution advantage of the Pentax 645Z implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the 645Z for good quality output (200 dots per inch) amounts to 41.3 x 31 inches or 104.9 x 78.6 cm, for very good quality (250 dpi) 33 x 24.8 inches or 83.9 x 62.9 cm, and for excellent quality (300 dpi) 27.5 x 20.6 inches or 69.9 x 52.4 cm. The corresponding values for the Panasonic G3 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.
The Panasonic Lumix DMC-G3 has a native sensitivity range from ISO 160 to ISO 6400. The corresponding ISO settings for the Pentax 645Z 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.
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"). Of the two cameras under consideration, the 645Z offers substantially better image quality than the G3 (overall score 45 points higher). The advantage is based on 5 bits higher color depth, 4.1 EV in additional dynamic range, and 2.8 stops in additional low light sensitivity. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
|1.||Panasonic G3||Four Thirds||15.8||4592||3448||1080/60i||21.0||10.6||667||56|
|2.||Pentax 645Z||Medium Format||51.1||8256||6192||1080/60i||26.0||14.7||4505||101|
|3.||Canon 5DS||Full Frame||50.3||8688||5792||1080/30p||24.7||12.4||2381||87|
|4.||Canon 5DS R||Full Frame||50.3||8688||5792||1080/30p||24.6||12.4||2308||86|
|5.||Hasselblad X1D||Medium Format||51.3||8272||6200||1080/25p||26.2||14.8||4489||102|
|6.||Leica SL||Full Frame||24.0||6000||4000||4K/30p||25.0||13.4||1821||88|
|7.||Panasonic G6||Four Thirds||15.9||4608||3456||1080/60p||21.3||11.5||639||61|
|8.||Panasonic GF6||Four Thirds||15.8||4592||3448||1080/60i||20.7||10.6||622||54|
|9.||Panasonic G5||Four Thirds||15.9||4608||3456||1080/60p||22.3||11.9||643||66|
|10.||Panasonic GF3||Four Thirds||12.0||4000||3000||1080/60i||20.6||10.0||458||49|
|11.||Panasonic GX1||Four Thirds||15.8||4592||3448||1080/60p||20.8||10.6||703||55|
|12.||Panasonic G10||Four Thirds||12.0||4000||3000||720/30p||21.2||10.1||411||52|
|13.||Panasonic G2||Four Thirds||12.0||4000||3000||720/30p||21.2||10.3||493||53|
|14.||Panasonic GF2||Four Thirds||12.0||4000||3000||1080/60i||21.2||10.3||506||54|
|15.||Panasonic GH2||Four Thirds||15.9||4608||3456||1080/60i||21.2||11.3||655||60|
|16.||Panasonic G1||Four Thirds||12.0||4000||3000||none||21.1||10.3||463||53|
|17.||Pentax 645D||Medium Format||39.5||7264||5440||none||24.6||12.6||1262||82|
|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, and both provide the same movie specifications (1080/60i).
Apart from body and sensor, cameras can and do differ across a variety of features. For example, the G3 has an electronic viewfinder (1440k dots), while the 645Z has an optical one. Both systems have their advantages, with the electronic viewfinder making it possible to project supplementary shooting information into the framing view, whereas the optical viewfinder offers lag-free viewing and a very clear framing image. The viewfinder in the G3 offers a wider field of view (100%) than the one in the 645Z (98%), so that a larger proportion of the captured image is visible in the finder. On the other hand, the viewfinder of the 645Z has a higher magnification (0.78x vs 0.70x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The adjacent table lists some of the other core features of the Panasonic G3 and Pentax 645Z along with similar information for a selection of comparators.
|1.||Panasonic G3||1440||n||3.0 / 460||swivel||Y||1/4000s||4.0/s||Y||n|
|2.||Pentax 645Z||optical||Y||3.2 / 1037||tilting||n||1/4000s||3.0/s||n||n|
|3.||Canon 5DS||optical||Y||3.2 / 1040||fixed||n||1/8000s||5.0/s||n||n|
|4.||Canon 5DS R||optical||Y||3.2 / 1040||fixed||n||1/8000s||5.0/s||n||n|
|5.||Hasselblad X1D||2360||n||3.0 / 920||fixed||Y||1/2000s||2.3/s||n||n|
|6.||Leica SL||4400||Y||3.0 / 1040||fixed||Y||1/8000s||11.0/s||n||n|
|7.||Panasonic G6||1440||n||3.0 / 1036||swivel||Y||1/4000s||7.0/s||Y||n|
|8.||Panasonic GF6||none||n||3.0 / 1040||tilting||Y||1/4000s||4.2/s||Y||n|
|9.||Panasonic G5||1440||n||3.0 / 920||swivel||Y||1/4000s||6.0/s||Y||n|
|10.||Panasonic GF3||none||n||3.0 / 460||fixed||Y||1/4000s||3.2/s||Y||n|
|11.||Panasonic GX1||optional||n||3.0 / 460||fixed||Y||1/4000s||4.2/s||Y||n|
|12.||Panasonic G10||202||n||3.0 / 460||fixed||n||1/4000s||2.6/s||Y||n|
|13.||Panasonic G2||1440||n||3.0 / 460||swivel||Y||1/4000s||2.6/s||Y||n|
|14.||Panasonic GF2||optional||n||3.0 / 460||fixed||Y||1/4000s||2.6/s||Y||n|
|15.||Panasonic GH2||1534||n||3.0 / 460||swivel||n||1/4000s||3.0/s||Y||n|
|16.||Panasonic G1||1440||n||3.0 / 460||swivel||n||1/4000s||3.0/s||Y||n|
|17.||Pentax 645D||optical||Y||3.0 / 921||fixed||n||1/4000s||1.1/s||n||n|
|Notes: *) 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 G3 has one, while the 645Z does not. While the built-in flash of the G3 is not very powerful, it can at times be useful as a fill-in light.The G3 has an articulated LCD that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in snapping selfies. In contrast, the 645Z does not have a selfie-screen.
The Pentax 645Z 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 G3 and the 645Z write their files to SDXC cards. The 645Z features dual card slots, which can be very useful in case a memory card fails. In contrast, the G3 only has one slot. The 645Z supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the G3 cannot take advantage of Ultra High Speed SD cards.
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-G3 and Pentax 645Z and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Mic / Speaker
|1.||Panasonic G3||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|2.||Pentax 645Z||Y||stereo / mono||Y||-||mini||3.0||-||-||-|
|3.||Canon 5DS||Y||mono / mono||Y||-||mini||3.0||-||-||-|
|4.||Canon 5DS R||Y||mono / mono||Y||-||mini||3.0||-||-||-|
|5.||Hasselblad X1D||Y||stereo / mono||Y||Y||mini||3.0||Y||-||-|
|6.||Leica SL||Y||stereo / mono||Y||Y||full||3.0||Y||-||-|
|7.||Panasonic G6||Y||stereo / mono||Y||-||mini||2.0||Y||Y||-|
|8.||Panasonic GF6||-||stereo / mono||-||-||mini||2.0||Y||Y||-|
|9.||Panasonic G5||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|10.||Panasonic GF3||-||stereo / mono||-||-||mini||2.0||-||-||-|
|11.||Panasonic GX1||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|12.||Panasonic G10||Y||mono / -||-||-||mini||2.0||-||-||-|
|13.||Panasonic G2||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|14.||Panasonic GF2||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|15.||Panasonic GH2||Y||stereo / mono||Y||-||mini||2.0||-||-||-|
|16.||Panasonic G1||Y||- / -||-||-||mini||2.0||-||-||-|
|17.||Pentax 645D||Y||stereo / -||-||-||-||2.0||-||-||-|
It is notable that the 645Z has a microphone port, which can help to improve the quality of audio recordings by attaching an external microphone. The G3 does not feature such a mic input.
Studio photographers will appreciate that the Pentax 645Z (unlike the G3) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
The 645Z is a recent model that features in the current product line-up of Pentax. In contrast, the G3 has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the G3 was succeeded by the Panasonic G5. Further information on the features and operation of the G3 and 645Z can be found, respectively, in the Panasonic G3 Manual (free pdf) or the online Pentax 645Z Manual.
So what is the bottom line? Is the Panasonic G3 better than the Pentax 645Z or vice versa? The listing below highlights the relative strengths of the two models.
Advantages of the Panasonic Lumix DMC-G3:
- 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 complete view: Has a viewfinder with a larger field of view (100% vs 98%).
- 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 (4 vs 3 flaps/sec) to capture the decisive moment.
- More compact: Is smaller (115x84mm vs 156x117mm) and thus needs less room in the bag.
- Less heavy: Is lighter (by 1214g or 78 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 (93 percent cheaper at launch).
- More heavily discounted: Has been available for much longer (launched in May 2011).
Arguments in favor of the Pentax 645Z:
- More detail: Has more megapixels (51.1 vs 15.8MP), which boosts linear resolution by 80%.
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- Better image quality: Scores substantially higher (45 points) in the DXO overall evaluation.
- Richer colors: Generates noticeably more natural colors (5 bits more color depth).
- More dynamic range: Captures a broader range of light and dark details (4.1 EV of extra DR).
- Better low-light sensitivity: Can shoot in dim conditions (2.8 stops ISO advantage).
- Better sound: Can connect to an external microphone for higher quality sound recording.
- Brighter framing: Features an optical viewfinder for clear, lag-free composition.
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.78x vs 0.70x).
- 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 460k dots).
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- Longer lasting: Gets more shots (650 versus 270) out of a single battery charge.
- Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
- Faster data transfer: Supports a more advanced USB protocol (3.0 vs 2.0).
- Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
- Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
- Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
- More modern: Reflects 2 years and 11 months of technical progress since the G3 launch.
If the number of relative strengths (bullet points above) is taken as a guide, the 645Z is the clear winner of the contest (20 : 13 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 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.
How about other alternatives? Do the specifications of the Panasonic G3 and the Pentax 645Z place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera and Best DSLR Camera listings whether the two cameras rank among the cream of the crop.
In any case, while the 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 G3 and the 645Z in practical situations. At times, user reviews, such as those published at amazon, address these issues in a useful manner, but such feedback is on many occasions incomplete, inconsistent, and unreliable.
This is why expert reviews are important. The table below provides a synthesis of the camera assessments of some of the best known photo-gear 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.
|1.||Panasonic G3||3/5||+ +||..||75/100||4.5/5||5/5||May 2011||599||ebay.com|
|2.||Pentax 645Z||5/5||..||..||..||4.5/5||5/5||Apr 2014||8,499||amazon.com|
|3.||Canon 5DS||..||+||..||83/100||4.5/5||4.5/5||Feb 2015||3,699||amazon.com|
|4.||Canon 5DS R||5/5||+||..||83/100||5/5||4.5/5||Feb 2015||3,699||amazon.com|
|5.||Hasselblad X1D||..||o||..||81/100||..||4/5||Jun 2016||8,995||ebay.com|
|6.||Leica SL||4/5||..||4/5||84/100||4.5/5||4/5||Oct 2015||7,450||ebay.com|
|7.||Panasonic G6||4/5||+ +||..||..||5/5||4.5/5||Apr 2013||599||ebay.com|
|8.||Panasonic GF6||..||+ +||..||..||4.5/5||4.5/5||Apr 2013||499||ebay.com|
|9.||Panasonic G5||3/5||+ +||..||..||4.5/5||4.5/5||Jul 2012||599||ebay.com|
|10.||Panasonic GF3||3/5||82/100||..||71/100||4.5/5||4/5||Jun 2011||549||ebay.com|
|11.||Panasonic GX1||3/5||+||..||77/100||4.5/5||4.5/5||Nov 2011||699||ebay.com|
|12.||Panasonic G10||3/5||..||..||70/100||4/5||4/5||Mar 2010||499||ebay.com|
|13.||Panasonic G2||..||..||..||72/100||4/5||4.5/5||Mar 2010||599||ebay.com|
|14.||Panasonic GF2||3/5||82/100||..||70/100||4.5/5||4.5/5||Nov 2010||549||ebay.com|
|15.||Panasonic GH2||5/5||+ +||..||79/100||4.5/5||5/5||Sep 2010||899||ebay.com|
|16.||Panasonic G1||..||+ +||..||70/100||4/5||4.5/5||Sep 2008||599||ebay.com|
|17.||Pentax 645D||5/5||..||..||..||..||..||Mar 2010||9,995||ebay.com|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
Care should be taken when interpreting the review scores above, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. Also, please note that some of the review sites have changed their methodology and reporting over time.
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 use the search menu below. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.
- Canon R6 vs Panasonic G3
- Fujifilm X-H1 vs Panasonic G3
- Fujifilm X-T1 vs Panasonic G3
- Nikon D60 vs Pentax 645Z
- Nikon D600 vs Pentax 645Z
- Nikon D70s vs Pentax 645Z
- Nikon P1000 vs Panasonic G3
- Panasonic G3 vs Samsung NX500
- Panasonic G3 vs Sony A9
- Panasonic ZS80 vs Pentax 645Z
- Pentax 645Z vs Sony A5100
- Pentax 645Z vs Sony A6100
Specifications: Panasonic G3 vs Pentax 645Z
Below is a side-by-side comparison of the specs of the two cameras to facilitate a quick review of their differences and common features.
|Camera Model||Panasonic G3||Pentax 645Z|
|Camera Type||Mirrorless system camera||Digital single lens reflex|
|Camera Lens||Micro Four Thirds lenses||Pentax 645 mount lenses|
|Launch Date||May 2011||April 2014|
|Launch Price||USD 599||USD 8,499|
|Sensor Specs||Panasonic G3||Pentax 645Z|
|Sensor Format||Four Thirds Sensor||Medium Format Sensor|
|Sensor Size||17.3 x 13.0 mm||43.8 x 32.8 mm|
|Sensor Area||224.9 mm2||1436.64 mm2|
|Sensor Diagonal||21.6 mm||54.7 mm|
|Sensor Resolution||15.8 Megapixels||51.1 Megapixels|
|Image Resolution||4592 x 3448 pixels||8256 x 6192 pixels|
|Pixel Pitch||3.77 μm||5.30 μm|
|Pixel Density||7.04 MP/cm2||3.56 MP/cm2|
|Moiré control||Anti-Alias filter||no AA filter|
|Movie Capability||1080/60i Video||1080/60i Video|
|ISO Setting||160 - 6,400 ISO||100 - 204,800 ISO|
|Image Processor||Venus FHD||PRIME III|
|DXO Sensor Quality (score)||56||101|
|DXO Color Depth (bits)||21.0||26.0|
|DXO Dynamic Range (EV)||10.6||14.7|
|DXO Low Light (ISO)||667||4505|
|Screen Specs||Panasonic G3||Pentax 645Z|
|Viewfinder Type||Electronic viewfinder||Optical viewfinder|
|Viewfinder Field of View||100%||98%|
|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||1037k dots|
|LCD Attachment||Swivel screen||Tilting screen|
|Touch Input||Touchscreen||no Touchscreen|
|Shooting Specs||Panasonic G3||Pentax 645Z|
|Focus System||Contrast-detect AF||Phase-detect AF|
|Manual Focusing Aid||no Peaking Feature||Focus Peaking|
|Max Shutter Speed (mechanical)||1/4000s||1/4000s|
|Continuous Shooting||4 shutter flaps/s||3 shutter flaps/s|
|Time-Lapse Photography||no Intervalometer||Intervalometer built-in|
|Fill Flash||Built-in Flash||no On-Board Flash|
|Storage Medium||SDXC cards||SDXC cards|
|Second Storage Option||Single card slot||Dual card slots|
|UHS card support||no||UHS-I|
|Connectivity Specs||Panasonic G3||Pentax 645Z|
|Studio Flash||no PC Sync||PC Sync socket|
|USB Connector||USB 2.0||USB 3.0|
|HDMI Port||mini HDMI||mini HDMI|
|Microphone Port||no MIC socket||External MIC port|
|Wifi Support||no Wifi||no Wifi|
|Body Specs||Panasonic G3||Pentax 645Z|
|Environmental Sealing||not weather sealed||Weathersealed body|
|Battery Life (CIPA)||270 shots per charge||650 shots per charge|
115 x 84 x 47 mm
(4.5 x 3.3 x 1.9 in)
156 x 117 x 123 mm
(6.1 x 4.6 x 4.8 in)
|Camera Weight||336 g (11.9 oz)||1550 g (54.7 oz)|
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