Pentax 645Z vs Sony NEX-6
The Pentax 645Z and the Sony Alpha NEX-6 are two digital cameras that were revealed to the public, respectively, in April 2014 and September 2012. The 645Z is a DSLR, while the NEX-6 is a mirrorless interchangeable lens camera. The cameras are based on a medium format (645Z) and an APS-C (NEX-6) sensor. The Pentax has a resolution of 51.1 megapixels, whereas the Sony provides 16 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 Pentax 645Z and the Sony Alpha NEX-6? 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.
An illustration of the physical size and weight of the Pentax 645Z and the Sony NEX-6 is provided in the side-by-side display below. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All width, height and depth measures are rounded to the nearest millimeter.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony NEX-6 is considerably smaller (56 percent) than the Pentax 645Z. Moreover, the NEX-6 is substantially lighter (78 percent) than the 645Z. It is worth mentioning in this context that the 645Z is splash and dust resistant, while the NEX-6 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. 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.
|1.||Pentax 645Z||156 mm||117 mm||123 mm||1550 g||650||Y||Apr 2014||8,499||amazon.com|
|2.||Sony NEX-6||120 mm||67 mm||43 mm||345 g||360||n||Sep 2012||999||ebay.com|
|3.||Canon 1D X Mark II||158 mm||168 mm||83 mm||1530 g||1210||Y||Feb 2016||5,999||ebay.com|
|4.||Canon 5DS||152 mm||116 mm||76 mm||930 g||700||Y||Feb 2015||3,699||amazon.com|
|5.||Canon 5DS R||152 mm||116 mm||76 mm||930 g||700||Y||Feb 2015||3,699||amazon.com|
|6.||Hasselblad X1D||150 mm||98 mm||71 mm||725 g||..||Y||Jun 2016||8,995||ebay.com|
|7.||Leica SL||147 mm||104 mm||39 mm||847 g||400||Y||Oct 2015||7,450||ebay.com|
|8.||Nikon D850||146 mm||124 mm||79 mm||1005 g||1840||Y||Jul 2017||3,299||amazon.com|
|9.||Nikon D5||160 mm||159 mm||92 mm||1415 g||3780||Y||Jan 2016||6,499||ebay.com|
|10.||Nikon D7200||136 mm||107 mm||76 mm||765 g||1110||Y||Mar 2015||1,199||ebay.com|
|11.||Nikon D4S||160 mm||157 mm||91 mm||1350 g||3020||Y||Feb 2014||6,499||ebay.com|
|12.||Pentax 645D||156 mm||117 mm||119 mm||1480 g||800||Y||Mar 2010||9,995||ebay.com|
|13.||Sony A6000||120 mm||67 mm||45 mm||344 g||360||n||Feb 2014||599||ebay.com|
|14.||Sony NEX-3N||110 mm||62 mm||35 mm||269 g||480||n||Feb 2013||499||ebay.com|
|15.||Sony NEX-5N||111 mm||59 mm||38 mm||269 g||460||n||Aug 2011||699||ebay.com|
|16.||Sony NEX-3||117 mm||62 mm||33 mm||297 g||330||n||May 2010||599||ebay.com|
|17.||Sony NEX-5||111 mm||59 mm||38 mm||287 g||330||n||May 2010||699||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 listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The NEX-6 was launched at a markedly lower price (by 88 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 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 Pentax 645Z features a medium format sensor and the Sony NEX-6 an APS-C sensor. The sensor area in the NEX-6 is 75 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 0.79 and 1.5. The sensor in the 645Z has a native 4:3 aspect ratio, while the one in the NEX-6 offers a 3:2 aspect.
With 51.1MP, the 645Z offers a higher resolution than the NEX-6 (16MP), but the 645Z nevertheless has larger individual pixels (pixel pitch of 5.30μm versus 4.78μm for the NEX-6) due to its larger sensor. Moreover, the 645Z is a somewhat more recent model (by 1 year and 7 months) than the NEX-6, and its sensor might have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixels. 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 Sony NEX-6 are 24.6 x 16.3 inches or 62.4 x 41.5 cm for good quality, 19.6 x 13.1 inches or 49.9 x 33.2 cm for very good quality, and 16.4 x 10.9 inches or 41.6 x 27.6 cm for excellent quality prints.
The Pentax 645Z has a native sensitivity range from ISO 100 to ISO 204800. The corresponding ISO settings for the Sony Alpha NEX-6 are ISO 100 to ISO 25600 (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 review, the 645Z provides substantially higher image quality than the NEX-6, with an overall score that is 23 points higher. This advantage is based on 2.3 bits higher color depth, 1.6 EV in additional dynamic range, and 2.1 stops in additional low light sensitivity. The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.
|1.||Pentax 645Z||Medium Format||51.1||8256||6192||1080/60i||26.0||14.7||4505||101|
|3.||Canon 1D X Mark II||Full Frame||20.0||5472||3648||4K/60p||24.1||13.5||3207||88|
|4.||Canon 5DS||Full Frame||50.3||8688||5792||1080/30p||24.7||12.4||2381||87|
|5.||Canon 5DS R||Full Frame||50.3||8688||5792||1080/30p||24.6||12.4||2308||86|
|6.||Hasselblad X1D||Medium Format||51.3||8272||6200||1080/25p||26.2||14.8||4489||102|
|7.||Leica SL||Full Frame||24.0||6000||4000||4K/30p||25.0||13.4||1821||88|
|8.||Nikon D850||Full Frame||45.4||8256||5504||4K/30p||26.4||14.8||2660||100|
|9.||Nikon D5||Full Frame||20.7||5588||3712||4K/30p||25.1||12.3||2343||88|
|11.||Nikon D4S||Full Frame||16.2||4928||3280||1080/60p||24.4||13.3||3074||89|
|12.||Pentax 645D||Medium Format||39.5||7264||5440||none||24.6||12.6||1262||82|
Many modern cameras cannot only take still pictures, but also record videos. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, and both provide the same movie specifications (1080/60i).
Beyond body and sensor, cameras can and do differ across a range of features. For example, the NEX-6 has an electronic viewfinder (2359k 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 NEX-6 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 0.73x), 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 Pentax 645Z and Sony NEX-6 in connection with corresponding information for a sample of similar cameras.
|1.||Pentax 645Z||optical||Y||3.2 / 1037||tilting||n||1/4000s||3.0/s||n||n|
|2.||Sony NEX-6||2359||n||3.0 / 921||tilting||n||1/4000s||10.0/s||Y||n|
|3.||Canon 1D X Mark II||optical||Y||3.2 / 1620||fixed||Y||1/8000s||16.0/s||n||n|
|4.||Canon 5DS||optical||Y||3.2 / 1040||fixed||n||1/8000s||5.0/s||n||n|
|5.||Canon 5DS R||optical||Y||3.2 / 1040||fixed||n||1/8000s||5.0/s||n||n|
|6.||Hasselblad X1D||2360||n||3.0 / 920||fixed||Y||1/2000s||2.3/s||n||n|
|7.||Leica SL||4400||Y||3.0 / 1040||fixed||Y||1/8000s||11.0/s||n||n|
|8.||Nikon D850||optical||Y||3.2 / 2359||tilting||Y||1/8000s||9.0/s||n||n|
|9.||Nikon D5||optical||Y||3.2 / 2359||fixed||Y||1/8000s||14.0/s||n||n|
|10.||Nikon D7200||optical||Y||3.2 / 1229||fixed||n||1/8000s||6.0/s||Y||n|
|11.||Nikon D4S||optical||Y||3.2 / 921||fixed||n||1/8000s||11.0/s||n||n|
|12.||Pentax 645D||optical||Y||3.0 / 921||fixed||n||1/4000s||1.1/s||n||n|
|13.||Sony A6000||1440||n||3.0 / 922||tilting||n||1/4000s||11.0/s||Y||n|
|14.||Sony NEX-3N||optional||n||3.0 / 460||tilting||n||1/4000s||4.0/s||Y||n|
|15.||Sony NEX-5N||optional||n||3.0 / 920||tilting||Y||1/4000s||10.0/s||n||n|
|16.||Sony NEX-3||optional||n||3.0 / 920||tilting||n||1/4000s||7.0/s||n||n|
|17.||Sony NEX-5||optional||n||3.0 / 920||tilting||n||1/4000s||7.0/s||n||n|
|Notes: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.|
One feature that is present on the 645Z, but is missing on the NEX-6 is a top-level LCD. While being, of course, smaller than the rear screen, the control panel conveys some of the essential shooting information and can be convenient for quick and easy settings verification.
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.
The 645Z writes its imaging data to SDXC cards, while the NEX-6 uses SDXC or Memory Stick PRO Duo cards. The 645Z features dual card slots, which can be very useful in case a memory card fails. In contrast, the NEX-6 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.
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 Pentax 645Z and Sony Alpha NEX-6 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Mic / Speaker
|1.||Pentax 645Z||Y||stereo / mono||Y||-||mini||3.0||-||-||-|
|2.||Sony NEX-6||Y||stereo / mono||-||-||mini||2.0||Y||-||-|
|3.||Canon 1D X Mark II||Y||mono / mono||Y||Y||mini||3.0||-||-||-|
|4.||Canon 5DS||Y||mono / mono||Y||-||mini||3.0||-||-||-|
|5.||Canon 5DS R||Y||mono / mono||Y||-||mini||3.0||-||-||-|
|6.||Hasselblad X1D||Y||stereo / mono||Y||Y||mini||3.0||Y||-||-|
|7.||Leica SL||Y||stereo / mono||Y||Y||full||3.0||Y||-||-|
|8.||Nikon D850||Y||stereo / mono||Y||Y||mini||3.0||Y||Y||Y|
|9.||Nikon D5||Y||stereo / mono||Y||Y||mini||3.0||-||-||-|
|10.||Nikon D7200||Y||stereo / mono||Y||Y||mini||2.0||Y||Y||-|
|11.||Nikon D4S||Y||mono / mono||Y||Y||mini||2.0||-||-||-|
|12.||Pentax 645D||Y||stereo / -||-||-||-||2.0||-||-||-|
|13.||Sony A6000||Y||stereo / mono||-||-||micro||2.0||Y||Y||-|
|14.||Sony NEX-3N||-||stereo / mono||-||-||micro||2.0||-||-||-|
|15.||Sony NEX-5N||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|16.||Sony NEX-3||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|17.||Sony NEX-5||Y||stereo / mono||-||-||mini||2.0||-||-||-|
It is notable that the 645Z has a microphone port, which is missing on the NEX-6. Such an external microphone input can help to substantially improve the quality of audio recordings when a good external microphone is used.
Studio photographers will appreciate that the Pentax 645Z (unlike the NEX-6) 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 NEX-6 has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the NEX-6 was succeeded by the Sony A6000. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Pentax and Sony websites.
So how do things add up? Is there a clear favorite between the Pentax 645Z and the Sony NEX-6? Which camera is better? The listing below highlights the relative strengths of the two models.
Reasons to prefer the Pentax 645Z:
- More detail: Offers more megapixels (51.1 vs 16MP) with a 75% higher linear resolution.
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- Better image quality: Scores substantially higher (23 points) in the DXO overall assessment.
- Richer colors: Generates images with noticeably better colors (2.3 bits more color depth).
- More dynamic range: Captures a larger spectrum of light and dark details (1.6 EV of extra DR).
- Better low-light sensitivity: Requires less light for good images (2.1 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 0.73x).
- Easier setting verification: Features an LCD display on top to control 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).
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- Longer lasting: Can take more shots (650 versus 360) on a single battery charge.
- Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
- 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.
- More modern: Is somewhat more recent (announced 1 year and 7 months after the NEX-6).
Advantages of the Sony Alpha NEX-6:
- 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%).
- Faster burst: Shoots at higher frequency (10 vs 3 flaps/sec) to capture the decisive moment.
- More compact: Is smaller (120x67mm vs 156x117mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 1205g or 78 percent) and is thus easier to take along.
- More legacy lens friendly: Can use many non-native lenses via adapters.
- Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
- Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
- More affordable: Was introduced into a lower priced category (88 percent cheaper at launch).
- More heavily discounted: Has been on the market for longer (launched in September 2012).
If the number of relative strengths (bullet points above) is taken as a guide, the 645Z is the clear winner of the match-up (19 : 11 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 Pentax 645Z and the Sony NEX-6 place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Mirrorless Interchangeable Lens Camera listings whether the two cameras rank among the cream of the crop.
In any case, while the comparison of technical specifications can provide a useful overview of the capabilities of different cameras, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the 645Z or the NEX-6. 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.
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.
|1.||Pentax 645Z||5/5||..||..||..||4.5/5||5/5||Apr 2014||8,499||amazon.com|
|2.||Sony NEX-6||5/5||+ +||..||78/100||4.5/5||4.5/5||Sep 2012||999||ebay.com|
|3.||Canon 1D X Mark II||..||..||4.5/5||89/100||4.5/5||4.5/5||Feb 2016||5,999||ebay.com|
|4.||Canon 5DS||..||+||..||83/100||4.5/5||4.5/5||Feb 2015||3,699||amazon.com|
|5.||Canon 5DS R||5/5||+||..||83/100||5/5||4.5/5||Feb 2015||3,699||amazon.com|
|6.||Hasselblad X1D||..||o||..||81/100||..||4/5||Jun 2016||8,995||ebay.com|
|7.||Leica SL||4/5||..||4/5||84/100||4.5/5||4/5||Oct 2015||7,450||ebay.com|
|8.||Nikon D850||4.5/5||+ +||5/5||89/100||4.5/5||5/5||Jul 2017||3,299||amazon.com|
|9.||Nikon D5||..||..||4/5||89/100||4.5/5||5/5||Jan 2016||6,499||ebay.com|
|10.||Nikon D7200||4/5||+ +||..||84/100||4.5/5||4.5/5||Mar 2015||1,199||ebay.com|
|11.||Nikon D4S||5/5||..||..||..||4.5/5||4.5/5||Feb 2014||6,499||ebay.com|
|12.||Pentax 645D||5/5||..||..||..||..||..||Mar 2010||9,995||ebay.com|
|13.||Sony A6000||5/5||+||4.5/5||80/100||4.5/5||5/5||Feb 2014||599||ebay.com|
|14.||Sony NEX-3N||3/5||..||..||..||4.5/5||4.5/5||Feb 2013||499||ebay.com|
|15.||Sony NEX-5N||3/5||+ +||..||79/100||4.5/5||4.5/5||Aug 2011||699||ebay.com|
|16.||Sony NEX-3||..||..||..||70/100||4.5/5||4/5||May 2010||599||ebay.com|
|17.||Sony NEX-5||3/5||+ +||..||71/100||4.5/5||4/5||May 2010||699||ebay.com|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
The review scores listed above should be treated with care, 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 rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.
Other camera comparisons
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Specifications: Pentax 645Z vs Sony NEX-6
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||Pentax 645Z||Sony NEX-6|
|Camera Type||Digital single lens reflex||Mirrorless system camera|
|Camera Lens||Pentax 645 mount lenses||Sony E mount lenses|
|Launch Date||April 2014||September 2012|
|Launch Price||USD 8,499||USD 999|
|Sensor Specs||Pentax 645Z||Sony NEX-6|
|Sensor Format||Medium Format Sensor||APS-C Sensor|
|Sensor Size||43.8 x 32.8 mm||23.4 x 15.6 mm|
|Sensor Area||1436.64 mm2||365.04 mm2|
|Sensor Diagonal||54.7 mm||28.1 mm|
|Sensor Resolution||51.1 Megapixels||16 Megapixels|
|Image Resolution||8256 x 6192 pixels||4912 x 3264 pixels|
|Pixel Pitch||5.30 μm||4.78 μm|
|Pixel Density||3.56 MP/cm2||4.39 MP/cm2|
|Moiré control||no AA filter||Anti-Alias filter|
|Movie Capability||1080/60i Video||1080/60i Video|
|ISO Setting||100 - 204,800 ISO||100 - 25,600 ISO|
|Image Processor||PRIME III||BIONZ|
|DXO Sensor Quality (score)||101||78|
|DXO Color Depth (bits)||26.0||23.7|
|DXO Dynamic Range (EV)||14.7||13.1|
|DXO Low Light (ISO)||4505||1018|
|Screen Specs||Pentax 645Z||Sony NEX-6|
|Viewfinder Type||Optical viewfinder||Electronic viewfinder|
|Viewfinder Field of View||98%||100%|
|Viewfinder Resolution||2359k dots|
|Top-Level Screen||Control Panel||no Top Display|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.2inch||3.0inch|
|LCD Resolution||1037k dots||921k dots|
|LCD Attachment||Tilting screen||Tilting screen|
|Shooting Specs||Pentax 645Z||Sony NEX-6|
|Focus System||Phase-detect AF||Contrast-detect AF|
|Manual Focusing Aid||Focus Peaking||Focus Peaking|
|Max Shutter Speed (mechanical)||1/4000s||1/4000s|
|Continuous Shooting||3 shutter flaps/s||10 shutter flaps/s|
|Shutter Life Expectancy||100 000 actuations||150 000 actuations|
|Time-Lapse Photography||Intervalometer built-in||no Intervalometer|
|Fill Flash||no On-Board Flash||Built-in Flash|
|Storage Medium||SDXC cards||MS or SDXC cards|
|Second Storage Option||Dual card slots||Single card slot|
|UHS card support||UHS-I||UHS-I|
|Connectivity Specs||Pentax 645Z||Sony NEX-6|
|Studio Flash||PC Sync socket||no PC Sync|
|USB Connector||USB 3.0||USB 2.0|
|HDMI Port||mini HDMI||mini HDMI|
|Microphone Port||External MIC port||no MIC socket|
|Wifi Support||no Wifi||Wifi built-in|
|Body Specs||Pentax 645Z||Sony NEX-6|
|Environmental Sealing||Weathersealed body||not weather sealed|
|Battery Life (CIPA)||650 shots per charge||360 shots per charge|
156 x 117 x 123 mm
(6.1 x 4.6 x 4.8 in)
120 x 67 x 43 mm
(4.7 x 2.6 x 1.7 in)
|Camera Weight||1550 g (54.7 oz)||345 g (12.2 oz)|
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