Pentax 645Z vs Pentax Q
The Pentax 645Z and the Pentax Q are two digital cameras that were officially introduced, respectively, in April 2014 and June 2011. The 645Z is a DSLR, while the Pentax Q is a mirrorless interchangeable lens camera. The cameras are based on a medium format (645Z) and a 1/2.3-inch (Pentax Q) sensor. The 645Z has a resolution of 51.1 megapixels, whereas the Pentax Q provides 12 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
|Pentax 645Z||Pentax Q|
|Digital single lens reflex||Mirrorless system camera|
|Pentax 645 mount lenses||Pentax Q mount lenses|
|51.1 MP, Medium Format Sensor||12 MP, 1/2.3" Sensor|
|1080/60i Video||1080/30p Video|
|ISO 100-204800||ISO 125-6400|
|Optical viewfinder||Viewfinder optional|
|3.2" LCD, 1037k dots||3.0" LCD, 460k dots|
|Tilting screen (no touchscreen)||Fixed screen (not touch-sensitive)|
|3 shutter flaps per second||1.5 shutter flaps per second|
|Lens stabilization only||In-body stabilization|
|Weathersealed body||Not weather sealed|
|650 shots per battery charge||230 shots per battery charge|
|156 x 117 x 123 mm, 1550 g||98 x 57 x 31 mm, 180 g|
Going beyond this snapshot of core features and characteristics, what are the differences between the Pentax 645Z and the Pentax Q? 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: Pentax 645Z vs Pentax Q
The side-by-side display below illustrates the physical size and weight of the Pentax 645Z and the Pentax Q. 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 dimensions are rounded to the nearest millimeter.
The Pentax Q can be obtained in two different colors (black, 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 Q is considerably smaller (69 percent) than the Pentax 645Z. Moreover, the Pentax Q is substantially lighter (88 percent) than the 645Z. It is worth mentioning in this context that the 645Z is splash and dust resistant, while the Pentax Q 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 adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. If you want to switch the focus of the display and review another camera pair, just select a new right or left comparator from among the camera models in the table. Alternatively, you can also move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.
|Pentax 645Z»||6.1 in||4.6 in||4.8 in||54.7 oz||650||Y||Apr 2014||8,499||Pentax 645Z|
|Pentax Q«||3.9 in||2.2 in||1.2 in||6.3 oz||230||n||Jun 2011||649||-||Pentax Q|
|Canon 1D X Mark II« »||6.2 in||6.6 in||3.3 in||54.0 oz||1210||Y||Feb 2016||5,999||Canon 1D X Mark II|
|Canon 5DS« »||6.0 in||4.6 in||3.0 in||32.8 oz||700||Y||Feb 2015||3,699||Canon 5DS|
|Canon 5DS R« »||6.0 in||4.6 in||3.0 in||32.8 oz||700||Y||Feb 2015||3,699||Canon 5DS R|
|Hasselblad X1D« »||5.9 in||3.9 in||2.8 in||25.6 oz||..||Y||Jun 2016||8,995||Hasselblad X1D|
|Leica SL« »||5.8 in||4.1 in||1.5 in||29.9 oz||400||Y||Oct 2015||7,450||Leica SL|
|Nikon D850« »||5.7 in||4.9 in||3.1 in||35.5 oz||1840||Y||Jul 2017||3,299||Nikon D850|
|Nikon D5« »||6.3 in||6.3 in||3.6 in||49.9 oz||3780||Y||Jan 2016||6,499||Nikon D5|
|Nikon D7200« »||5.4 in||4.2 in||3.0 in||27.0 oz||1110||Y||Mar 2015||1,199||-||Nikon D7200|
|Nikon D4S« »||6.3 in||6.2 in||3.6 in||47.6 oz||3020||Y||Feb 2014||6,499||-||Nikon D4S|
|Olympus XZ-2« »||4.4 in||2.6 in||1.9 in||12.2 oz||340||n||Sep 2012||599||-||Olympus XZ-2|
|Olympus E-PL2« »||4.5 in||2.8 in||1.7 in||12.8 oz||280||n||Jan 2011||599||-||Olympus E-PL2|
|Olympus E-PL3« »||4.3 in||2.5 in||1.5 in||11.0 oz||300||n||Jun 2011||599||-||Olympus E-PL3|
|Olympus E-PL1« »||4.5 in||2.8 in||1.7 in||11.8 oz||290||n||Feb 2010||599||-||Olympus E-PL1|
|Olympus E-620« »||5.1 in||3.7 in||2.4 in||18.4 oz||500||n||Feb 2009||699||-||Olympus E-620|
|Pentax 645D« »||6.1 in||4.6 in||4.7 in||52.2 oz||800||Y||Mar 2010||9,995||-||Pentax 645D|
|Note: Measurements and pricing do not include easily detachable parts, such as 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 Pentax Q was launched at a markedly lower price (by 92 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.
Sensor comparison: Pentax 645Z vs Pentax Q
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 Pentax 645Z features a medium format sensor and the Pentax Q a 1/2.3-inch sensor. The sensor area in the Pentax Q is 98 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 0.79 and 5.6. Both cameras feature a native aspect ratio (sensor width to sensor height) of 4:3.
Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors.
With 51.1MP, the 645Z offers a higher resolution than the Pentax Q (12MP), but the 645Z nevertheless has larger individual pixels (pixel pitch of 5.30μm versus 1.53μm for the Pentax Q) due to its larger sensor. Moreover, the 645Z is a much more recent model (by 2 years and 9 months) than the Pentax Q, and its sensor will 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 inch or 104.9 x 78.6 cm, for very good quality (250 dpi) 33 x 24.8 inch or 83.9 x 62.9 cm, and for excellent quality (300 dpi) 27.5 x 20.6 inch or 69.9 x 52.4 cm. The corresponding values for the Pentax Q are 20 x 15 inch or 50.8 x 38.1 cm for good quality, 16 x 12 inch or 40.6 x 30.5 cm for very good quality, and 13.3 x 10 inch or 33.9 x 25.4 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 Pentax Q are ISO 125 to ISO 6400 (no boost).
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"). Of the two cameras under review, the 645Z provides substantially higher image quality than the Pentax Q, with an overall score that is 54 points higher. This advantage is based on 5.8 bits higher color depth, 3.6 EV in additional dynamic range, and 4.6 stops in additional low light sensitivity. The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.
|Pentax 645Z»||Medium Format||51.1||8256||6192||1080/60i||26.0||14.7||4505||101||Pentax 645Z|
|Pentax Q«||1/2.3||12.0||4000||3000||1080/30p||20.2||11.1||189||47||Pentax Q|
|Canon 1D X Mark II« »||Full Frame||20.0||5472||3648||4K/60p||24.1||13.5||3207||88||Canon 1D X Mark II|
|Canon 5DS« »||Full Frame||50.3||8688||5792||1080/30p||24.7||12.4||2381||87||Canon 5DS|
|Canon 5DS R« »||Full Frame||50.3||8688||5792||1080/30p||24.6||12.4||2308||86||Canon 5DS R|
|Hasselblad X1D« »||Medium Format||51.3||8272||6200||1080/25p||26.2||14.8||4489||102||Hasselblad X1D|
|Leica SL« »||Full Frame||24.0||6000||4000||4K/30p||25.0||13.4||1821||88||Leica SL|
|Nikon D850« »||Full Frame||45.4||8256||5504||4K/30p||26.4||14.8||2660||100||Nikon D850|
|Nikon D5« »||Full Frame||20.7||5588||3712||4K/30p||25.1||12.3||2343||88||Nikon D5|
|Nikon D7200« »||APS-C||24.0||6000||4000||1080/60p||24.5||14.6||1333||87||Nikon D7200|
|Nikon D4S« »||Full Frame||16.2||4928||3280||1080/60p||24.4||13.3||3074||89||Nikon D4S|
|Olympus XZ-2« »||1/1.7||11.8||3968||2976||1080/30p||20.4||11.3||216||49||Olympus XZ-2|
|Olympus E-PL2« »||Four Thirds||12.2||4032||3024||720/30p||21.4||10.2||573||55||Olympus E-PL2|
|Olympus E-PL3« »||Four Thirds||12.2||4032||3024||1080/60i||20.9||10.3||499||52||Olympus E-PL3|
|Olympus E-PL1« »||Four Thirds||12.2||4032||3024||720/30p||21.5||10.1||487||54||Olympus E-PL1|
|Olympus E-620« »||Four Thirds||12.2||4032||3024||-||21.3||10.3||536||55||Olympus E-620|
|Pentax 645D« »||Medium Format||39.5||7264||5440||-||24.6||12.6||1262||82||Pentax 645D|
Many modern cameras are not only capable of taking still images, but also of capturing video footage. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the 645Z provides a higher frame rate than the Pentax Q. It can shoot video footage at 1080/60i, while the Pentax Q is limited to 1080/30p.
Feature comparison: Pentax 645Z vs Pentax Q
Apart from body and sensor, cameras can and do differ across a variety of features. For example, the 645Z has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the Pentax Q relies on live view and the rear LCD for framing. That said, the Pentax Q can be equipped with an optional viewfinder – the O-VF1. The adjacent table lists some of the other core features of the Pentax 645Z and Pentax Q along with similar information for a selection of comparators.
|Pentax 645Z»||optical||Y||3.2||1037||tilting||n||1/4000s||3.0||n||n||Pentax 645Z|
|Pentax Q«||-||n||3.0||460||fixed||n||1/2000s||1.5||Y||Y||Pentax Q|
|Canon 1D X Mark II« »||optical||Y||3.2||1620||fixed||Y||1/8000s||16.0||n||n||Canon 1D X Mark II|
|Canon 5DS« »||optical||Y||3.2||1040||fixed||n||1/8000s||5.0||n||n||Canon 5DS|
|Canon 5DS R« »||optical||Y||3.2||1040||fixed||n||1/8000s||5.0||n||n||Canon 5DS R|
|Hasselblad X1D« »||2360||n||3.0||920||fixed||Y||1/2000s||2.3||n||n||Hasselblad X1D|
|Leica SL« »||4400||Y||3.0||1040||fixed||Y||1/8000s||11.0||n||n||Leica SL|
|Nikon D850« »||optical||Y||3.2||2359||tilting||Y||1/8000s||9.0||n||n||Nikon D850|
|Nikon D5« »||optical||Y||3.2||2359||fixed||Y||1/8000s||14.0||n||n||Nikon D5|
|Nikon D7200« »||optical||Y||3.2||1229||fixed||n||1/8000s||6.0||Y||n||Nikon D7200|
|Nikon D4S« »||optical||Y||3.2||921||fixed||n||1/8000s||11.0||n||n||Nikon D4S|
|Olympus XZ-2« »||-||n||3.0||920||tilting||Y||1/2000s||5.0||Y||Y||Olympus XZ-2|
|Olympus E-PL2« »||-||n||3.0||460||fixed||n||1/4000s||3.0||Y||Y||Olympus E-PL2|
|Olympus E-PL3« »||-||n||3.0||460||tilting||n||1/4000s||5.5||n||Y||Olympus E-PL3|
|Olympus E-PL1« »||-||n||2.7||230||fixed||n||1/2000s||3.0||Y||Y||Olympus E-PL1|
|Olympus E-620« »||optical||n||2.7||230||swivel||n||1/4000s||4.0||Y||Y||Olympus E-620|
|Pentax 645D« »||optical||Y||3.0||921||fixed||n||1/4000s||1.1||n||n||Pentax 645D|
One feature that is present on the 645Z, but is missing on the Pentax Q 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 and the Pentax Q 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 645Z and the Pentax Q 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 Pentax Q only has one slot. The 645Z supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the Pentax Q cannot take advantage of Ultra High Speed SD cards.
Connectivity comparison: Pentax 645Z vs Pentax Q
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 Pentax Q and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
|Pentax 645Z»||Y||stereo||mono||Y||-||mini||3.0||-||-||-||Pentax 645Z|
|Pentax Q«||Y||mono||mono||-||-||mini||2.0||-||-||-||Pentax Q|
|Canon 1D X Mark II« »||Y||mono||mono||Y||Y||mini||3.0||-||-||-||Canon 1D X Mark II|
|Canon 5DS« »||Y||mono||mono||Y||-||mini||3.0||-||-||-||Canon 5DS|
|Canon 5DS R« »||Y||mono||mono||Y||-||mini||3.0||-||-||-||Canon 5DS R|
|Hasselblad X1D« »||Y||stereo||mono||Y||Y||mini||3.0||Y||-||-||Hasselblad X1D|
|Leica SL« »||Y||stereo||mono||Y||Y||full||3.0||Y||-||-||Leica SL|
|Nikon D850« »||Y||stereo||mono||Y||Y||mini||3.0||Y||Y||Y||Nikon D850|
|Nikon D5« »||Y||stereo||mono||Y||Y||mini||3.0||-||-||-||Nikon D5|
|Nikon D7200« »||Y||stereo||mono||Y||Y||mini||2.0||Y||Y||-||Nikon D7200|
|Nikon D4S« »||Y||mono||mono||Y||Y||mini||2.0||-||-||-||Nikon D4S|
|Olympus XZ-2« »||Y||stereo||mono||-||-||mini||2.0||-||-||-||Olympus XZ-2|
|Olympus E-PL2« »||Y||stereo||-||-||-||mini||2.0||-||-||-||Olympus E-PL2|
|Olympus E-PL3« »||Y||stereo||-||-||-||mini||2.0||-||-||-||Olympus E-PL3|
|Olympus E-PL1« »||Y||stereo||-||-||-||mini||2.0||-||-||-||Olympus E-PL1|
|Olympus E-620« »||Y||-||-||-||-||-||2.0||-||-||-||Olympus E-620|
|Pentax 645D« »||Y||stereo||-||-||-||-||2.0||-||-||-||Pentax 645D|
It is notable that the 645Z has a microphone port, which is missing on the Pentax Q. 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 Pentax Q) 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 Pentax Q has been discontinued (but it can be found pre-owned on eBay). As a replacement in the same line of cameras, the Pentax Q was succeeded by the Pentax Q10. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Pentax website.
Review summary: Pentax 645Z vs Pentax Q
So what conclusions can be drawn? Is the Pentax 645Z better than the Pentax Q or vice versa? A synthesis of the relative strong points of each of the models is listed below.
Arguments in favor of the Pentax 645Z:
- More detail: Offers more megapixels (51.1 vs 12MP) with a 106% higher linear resolution.
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- Better image quality: Scores substantially higher (54 points) in the DXO overall assessment.
- Richer colors: Generates images with noticeably better colors (5.8 bits more color depth).
- More dynamic range: Captures a larger spectrum of light and dark details (3.6 EV of extra DR).
- Better low-light sensitivity: Requires less light for good images (4.6 stops ISO advantage).
- Better video: Provides higher movie framerates (1080/60i versus 1080/30p).
- Better sound: Can connect to an external microphone for higher quality sound recording.
- Easier framing: Has an optical viewfinder for image framing and settings control.
- 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 460k dots).
- More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
- Faster shutter: Has higher mechanical shutter speed (1/4000s vs 1/2000s) to freeze action.
- Faster burst: Shoots at higher frequency (3 vs 1.5 flaps/sec) to capture the decisive moment.
- Longer lasting: Can take more shots (650 versus 230) 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.
- Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
- More modern: Reflects 2 years and 9 months of technical progress since the Pentax Q launch.
Advantages of the Pentax Q:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- More compact: Is smaller (98x57mm vs 156x117mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 1370g or 88 percent) and is thus easier to take along.
- Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
- 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.
- More affordable: Was introduced into a lower priced category (92 percent cheaper at launch).
- More heavily discounted: Has been around for much longer (launched in June 2011).
If the count of relative strengths (bullet points above) is taken as a measure, the 645Z is the clear winner of the match-up (22 : 8 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 sports photographer will view the differences between cameras in a way that diverges from the perspective of a street photog, and a person interested in family portraits has distinct needs from a landscape 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 Pentax Q 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 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 645Z and the Pentax Q in practical situations. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.
Expert reviews: Pentax 645Z vs Pentax Q
This is why expert reviews are important. The following table reports the overall ratings of the cameras as published by some of the major camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, and photographyblog). 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.
|Pentax 645Z»||-||-||4.5/5||5/5||5/5||Apr 2014||8,499||Pentax 645Z|
|Pentax Q«||-||-||4/5||3.5/5||3.5/5||Jun 2011||649||-||Pentax Q|
|Canon 1D X Mark II« »||-||89/100||4.5/5||5/5||4.5/5||Feb 2016||5,999||Canon 1D X Mark II|
|Canon 5DS« »||+||83/100||4.5/5||5/5||4.5/5||Feb 2015||3,699||Canon 5DS|
|Canon 5DS R« »||+||83/100||5/5||5/5||4.5/5||Feb 2015||3,699||Canon 5DS R|
|Hasselblad X1D« »||o||81/100||-||-||4/5||Jun 2016||8,995||Hasselblad X1D|
|Leica SL« »||-||84/100||4.5/5||4/5||4/5||Oct 2015||7,450||Leica SL|
|Nikon D850« »||+ +||89/100||4.5/5||5/5||5/5||Jul 2017||3,299||Nikon D850|
|Nikon D5« »||-||89/100||4.5/5||5/5||5/5||Jan 2016||6,499||Nikon D5|
|Nikon D7200« »||+ +||84/100||4.5/5||4/5||4.5/5||Mar 2015||1,199||-||Nikon D7200|
|Nikon D4S« »||-||-||4.5/5||5/5||4.5/5||Feb 2014||6,499||-||Nikon D4S|
|Olympus XZ-2« »||+||-||4.5/5||4/5||4.5/5||Sep 2012||599||-||Olympus XZ-2|
|Olympus E-PL2« »||83/100||71/100||4.5/5||4.5/5||4.5/5||Jan 2011||599||-||Olympus E-PL2|
|Olympus E-PL3« »||+ +||72/100||4.5/5||-||4/5||Jun 2011||599||-||Olympus E-PL3|
|Olympus E-PL1« »||86/100||69/100||4/5||4.5/5||4.5/5||Feb 2010||599||-||Olympus E-PL1|
|Olympus E-620« »||88/100||72/100||4.5/5||o||5/5||Feb 2009||699||-||Olympus E-620|
|Pentax 645D« »||-||-||-||4.5/5||-||Mar 2010||9,995||-||Pentax 645D|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (-) not available.|
Care should be taken when interpreting the review scores above, though. The assessments were made in relation to similar cameras of the same technological generation. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and comparisons of ratings among very different cameras or across long time periods have little meaning. 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? In case you are interested in seeing how other cameras pair up, just make a corresponding selection in the search boxes below. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.
Specifications: Pentax 645Z vs Pentax Q
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||Pentax Q|
|Camera Type||Digital single lens reflex||Mirrorless system camera|
|Camera Lens||Pentax 645 mount lenses||Pentax Q mount lenses|
|Launch Date||April 2014||June 2011|
|Launch Price||USD 8499||USD 649|
|Sensor Specs||Pentax 645Z||Pentax Q|
|Sensor Format||Medium Format Sensor||1/2.3" Sensor|
|Sensor Size||43.8 x 32.8 mm||6.17 x 4.55 mm|
|Sensor Area||1436.64 mm2||28.0735 mm2|
|Sensor Diagonal||54.7 mm||7.7 mm|
|Sensor Resolution||51.1 Megapixels||12 Megapixels|
|Image Resolution||8256 x 6192 pixels||4000 x 3000 pixels|
|Pixel Pitch||5.30 μm||1.53 μm|
|Pixel Density||3.56 MP/cm2||42.74 MP/cm2|
|Moiré control||no AA filter||Anti-Alias filter|
|Movie Capability||1080/60i Video||1080/30p Video|
|ISO Setting||100-204800 ISO||125-6400 ISO|
|DXO Sensor Quality (score)||101||47|
|DXO Color Depth (bits)||26.0||20.2|
|DXO Dynamic Range (EV)||14.7||11.1|
|DXO Low Light (ISO)||4505||189|
|Screen Specs||Pentax 645Z||Pentax Q|
|Viewfinder Type||Optical viewfinder||Viewfinder optional|
|Viewfinder Field of View||98%|
|Top-Level Screen||Control Panel||no Top Display|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.2 inch||3.0 inch|
|LCD Resolution||1037k dots||460k dots|
|LCD Attachment||Tilting screen||Fixed screen|
|Shooting Specs||Pentax 645Z||Pentax Q|
|Autofocus System||Phase-detect AF||Contrast-detect AF|
|Manual Focusing Aid||Focus Peaking||No Peaking Feature|
|Continuous Shooting||3 shutter flaps/s||1.5 shutter flaps/s|
|Time-Lapse Photography||Intervalometer built-in||Intervalometer built-in|
|Image Stabilization||Lens stabilization only||In-body stabilization|
|Fill Flash||no On-Board Flash||Build-in Flash|
|Storage Medium||SDXC cards||SDXC cards|
|Second Storage Option||Dual card slots||Single card slot|
|UHS card support||UHS-I||no|
|Connectivity Specs||Pentax 645Z||Pentax Q|
|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||no Wifi|
|Body Specs||Pentax 645Z||Pentax Q|
|Environmental Sealing||Weathersealed body||Not weather sealed|
|Battery Type||D-LI90 power pack||D-LI68 power pack|
|Battery Life (CIPA)||650 shots per charge||230 shots per charge|
156 x 117 x 123 mm
(6.1 x 4.6 x 4.8 in)
98 x 57 x 31 mm
(3.9 x 2.2 x 1.2 in)
|Camera Weight||1550 g (54.7 oz)||180 g (6.3 oz)|
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