Leica Q2 vs Pentax 645Z
The Leica Q2 and the Pentax 645Z are two digital cameras that were announced, respectively, in March 2019 and April 2014. The Q2 is a fixed lens compact, while the 645Z is a DSLR. The cameras are based on a full frame (Q2) and a medium format (645Z) sensor. The Leica has a resolution of 46.7 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.
|Leica Q2||Pentax 645Z|
|Fixed lens compact camera||Digital single lens reflex|
|28mm f/1.7||Pentax 645 mount lenses|
|46.7 MP, Full Frame Sensor||51.1 MP, Medium Format Sensor|
|4K/30p Video||1080/60i Video|
|ISO 50-50,000||ISO 100-204,800|
|Electronic viewfinder (3680k dots)||Optical viewfinder|
|3.0 LCD, 1040k dots||3.2 LCD, 1037k dots|
|Fixed touchscreen||Tilting screen (not touch-sensitive)|
|20 shutter flaps per second||3 shutter flaps per second|
|Weathersealed body||Weathersealed body|
|370 shots per battery charge||650 shots per battery charge|
|130 x 80 x 92 mm, 718 g||156 x 117 x 123 mm, 1550 g|
Going beyond this snapshot of core features and characteristics, what are the differences between the Leica Q2 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 physical size and weight of the Leica Q2 and the Pentax 645Z are illustrated 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 dimensions 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 Pentax 645Z is considerably larger (76 percent) than the Leica Q2. In this context, it is worth noting that both cameras are splash and dust-proof and can, hence, be used in inclement weather conditions or harsh environments.
The above size and weight comparisons are to some extent incomplete and possibly misleading, as the Q2 has a lens built in, whereas the 645Z is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup.
The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. If you would like to visualize and compare a different camera combination, just use the right or left arrows in the table to switch to the respective camera. Alternatively, you can also navigate to the CAM-parator app and make your selection from the full list of cameras there.
|Leica Q2||5.1 in||3.1 in||3.6 in||25.3 oz||370||Y||Mar 2019||4,995|
|Pentax 645Z||6.1 in||4.6 in||4.8 in||54.7 oz||650||Y||Apr 2014||8,499|
|Canon R||5.5 in||3.9 in||3.3 in||23.3 oz||370||Y||Sep 2018||2,299|
|Canon 5DS||6.0 in||4.6 in||3.0 in||32.8 oz||700||Y||Feb 2015||3,699|
|Canon 5DS R||6.0 in||4.6 in||3.0 in||32.8 oz||700||Y||Feb 2015||3,699|
|Fujifilm GFX 50R||6.3 in||3.8 in||2.6 in||27.3 oz||400||Y||Sep 2018||4,499|
|Hasselblad X1D II||5.8 in||3.8 in||2.8 in||27.0 oz||..||Y||Jun 2019||5,750|
|Hasselblad X1D||5.9 in||3.9 in||2.8 in||25.6 oz||..||Y||Jun 2016||8,995|
|Leica M10-R||5.5 in||3.1 in||1.5 in||23.3 oz||210||Y||Jul 2020||8,295|
|Leica M10-P||5.5 in||3.1 in||1.5 in||23.3 oz||210||Y||Aug 2018||7,995|
|Leica M10||5.5 in||3.1 in||1.5 in||23.3 oz||210||Y||Jan 2017||6,595|
|Leica M Typ 262||5.5 in||3.1 in||1.7 in||24.0 oz||..||Y||Nov 2015||5,195|
|Leica Q Typ 116||5.1 in||3.1 in||3.7 in||22.6 oz||300||n||Jun 2015||4,249|
|Leica SL||5.8 in||4.1 in||1.5 in||29.9 oz||400||Y||Oct 2015||7,450|
|Nikon Z7||5.3 in||4.0 in||2.6 in||23.8 oz||330||Y||Aug 2018||3,399|
|Pentax 645D||6.1 in||4.6 in||4.7 in||52.2 oz||800||Y||Mar 2010||9,995|
|Zeiss ZX1||5.6 in||3.7 in||1.8 in||28.2 oz||250||n||Sep 2018||4,199|
Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
(1) Number of images that can be taken on a full battery charge according to the CIPA-standard; (2) Official announcement.
Any camera decision will obviously take relative prices into account. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The Q2 was launched at a lower price than the 645Z, despite having a lens built in. 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 Leica Q2 features a full frame sensor and the Pentax 645Z a medium format sensor. The sensor area in the 645Z is 66 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.0 and 0.79. The sensor in the Q2 has a native 3:2 aspect ratio, while the one in the 645Z offers a 4:3 aspect.
Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors.
With 51.1MP, the 645Z offers a higher resolution than the Q2 (46.7MP), but the 645Z nevertheless has larger individual pixels (pixel pitch of 5.30μm versus 4.30μm for the Q2) due to its larger sensor. However, the Q2 is a much more recent model (by 4 years and 10 months) than the 645Z, 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 neither of the two cameras has an anti-alias filter installed, so they are able to capture all the detail the sensor resolves.
The Leica Q2 has a native sensitivity range from ISO 50 to ISO 50000. The corresponding ISO settings for the Pentax 645Z are ISO 100 to ISO 204800 (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 consideration, the 645Z has a markedly higher DXO score than the Q2 (overall score 5 points higher), which will translate into better image quality. The advantage is based on 0.4 bits lower color depth, 1.2 EV in additional dynamic range, and 0.9 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.
|Leica Q2||Full Frame||46.7||8368||5584||4K/30p||26.4||13.5||2491||96|
|Pentax 645Z||Medium Format||51.1||8256||6192||1080/60i||26.0||14.7||4505||101|
|Canon R||Full Frame||30.1||6720||4480||4K/30p||24.5||13.5||2742||89|
|Canon 5DS||Full Frame||50.3||8688||5792||1080/30p||24.7||12.4||2381||87|
|Canon 5DS R||Full Frame||50.3||8688||5792||1080/30p||24.6||12.4||2308||86|
|Fujifilm GFX 50R||Medium Format||51.1||8256||6192||1080/30p||..||..||..||..|
|Hasselblad X1D II||Medium Format||51.3||8272||6200||none||..||..||..||..|
|Hasselblad X1D||Medium Format||51.3||8272||6200||1080/25p||26.2||14.8||4489||102|
|Leica M10-R||Full Frame||40.9||7864||5200||none||..||..||..||..|
|Leica M10-P||Full Frame||23.8||5952||3992||none||..||..||..||..|
|Leica M10||Full Frame||23.8||5952||3992||none||24.4||13.2||2133||86|
|Leica M Typ 262||Full Frame||23.7||5952||3976||none||..||..||..||..|
|Leica Q Typ 116||Full Frame||24.0||6000||4000||1080/60p||24.3||12.7||2221||85|
|Leica SL||Full Frame||24.0||6000||4000||4K/30p||25.0||13.4||1821||88|
|Nikon Z7||Full Frame||45.4||8256||5504||4K/30p||26.3||14.6||2668||99|
|Pentax 645D||Medium Format||39.5||7264||5440||none||24.6||12.6||1262||82|
|Zeiss ZX1||Full Frame||37.4||7488||4992||4K/30p||..||..||..||..|
Many modern cameras are not only capable of taking still images, but can also record movies. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the Q2 provides a higher video resolution than the 645Z. It can shoot video footage at 4K/30p, while the Pentax is limited to 1080/60i.
Apart from body and sensor, cameras can and do differ across a variety of features. For example, the Q2 has an electronic viewfinder (3680k 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 Q2 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 0.76x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The following table reports on some other key feature differences and similarities of the Leica Q2, the Pentax 645Z, and comparable cameras.
|Canon 5DS R||optical||Y||3.2||1040||fixed||n||1/8000s||5.0||n||n|
|Fujifilm GFX 50R||3690||n||3.2||2360||tilting||Y||1/4000s||3.0||n||n|
|Hasselblad X1D II||3690||n||3.6||2360||fixed||Y||1/2000s||2.7||n||n|
|Leica M Typ 262||optical||n||3.0||921||fixed||n||1/4000s||3.0||n||n|
|Leica Q Typ 116||3680||n||3.0||1040||fixed||Y||1/2000s||10.0||n||Y|
One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The Q2 has a touchscreen, while the 645Z has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.
The reported shutter speed information refers to the use of the mechanical shutter. Yet, some cameras only have an electronic shutter, while others have an electronic shutter in addition to a mechanical one. In fact, the Q2 is one of those camera that have an additional electronic shutter, which makes completely silent shooting possible. However, this mode is less suitable for photographing moving objects (risk of rolling shutter) or shooting under artificial light sources (risk of flickering).
The Leica Q2 and the Pentax 645Z 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 Q2 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 Q2 only has one slot. The Q2 supports UHS-II cards (Ultra High Speed data transfer of up to 312 MB/s), while the 645Z can use UHS-I cards (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 Leica Q2 and Pentax 645Z and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
|Canon 5DS R||Y||mono||mono||Y||-||mini||3.0||-||-||-|
|Fujifilm GFX 50R||Y||stereo||mono||Y||Y||micro||3.0||Y||-||Y|
|Hasselblad X1D II||Y||stereo||mono||Y||Y||-||3.0||Y||-||-|
|Leica M Typ 262||Y||-||-||-||-||-||2.0||-||-||-|
|Leica Q Typ 116||Y||stereo||mono||-||-||micro||2.0||Y||Y||-|
It is notable that the Q2 offers wifi support, while the 645Z does not. Wifi can be a very convenient means to transfer image data to an off-camera location.
Studio photographers will appreciate that the Pentax 645Z (unlike the Q2) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
Both the Q2 and the 645Z are recent models that are part of the current product line-up. The 645Z replaced the earlier Pentax 645D, while the Q2 followed on from the Leica Q Typ 116. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Leica and Pentax websites.
So what is the bottom line? Is there a clear favorite between the Leica Q2 and the Pentax 645Z? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.
Reasons to prefer the Leica Q2:
- Better video: Provides higher definition movie capture (4K/30p vs 1080/60i).
- 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%).
- Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
- Faster burst: Shoots at higher frequency (20 vs 3 flaps/sec) to capture the decisive moment.
- Less disturbing: Has an electronic shutter option for completely silent shooting.
- Ready to shoot: Comes with a built-in lens, while the 645Z requires a separate lens.
- More compact: Is smaller (130x80mm vs 156x117mm) and thus needs less room in the bag.
- Less heavy: Is lighter even though it comes with a built-in lens (unlike the 645Z).
- Sharper images: Has hand-shake reducing image stabilization built-in.
- 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.
- Faster buffer clearing: Supports a more advanced SD data transfer standard (UHS-II vs UHS-I).
- More prestigious: Has the Leica luxury appeal, which ensures a high resale price.
- More affordable: Was introduced at a lower price, despite coming with a built-in lens.
- More modern: Reflects 4 years and 10 months of technical progress since the 645Z launch.
Arguments in favor of the Pentax 645Z:
- Better image quality: Scores markedly higher (5 points) in the DXO overall evaluation.
- More dynamic range: Captures a broader range of light and dark details (1.2 EV of extra DR).
- Better low-light sensitivity: Can shoot in dim conditions (0.9 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 0.76x).
- 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 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.
- More flexible: Makes it possible to change lenses and thus to use specialty optics.
- Longer lasting: Gets more shots (650 versus 370) out of a single battery charge.
- 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 heavily discounted: Has been around for much longer (launched in April 2014).
If the count of individual advantages (bullet points above) is taken as a guide, the Q2 comes out slightly ahead of the 645Z (16 : 15 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 Leica Q2 and the Pentax 645Z place the cameras among the top in their class? Find out in the latest Best Prime Lens Compact Camera and Best DSLR Camera listings whether the two cameras rank among the cream of the crop.
In any case, while the specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it says little about, for example, the shooting experience and imaging performance of the Q2 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 where reviews by experts come in. The table below provides a synthesis of the camera assessments of some of the best known photo-gear 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.
|Leica Q2||..||84/100||4.5/5||..||4/5||Mar 2019||4,995|
|Pentax 645Z||..||..||4.5/5||5/5||5/5||Apr 2014||8,499|
|Canon R||o||79/100||4.5/5||4/5||4/5||Sep 2018||2,299|
|Canon 5DS||+||83/100||4.5/5||5/5||4.5/5||Feb 2015||3,699|
|Canon 5DS R||+||83/100||5/5||5/5||4.5/5||Feb 2015||3,699|
|Fujifilm GFX 50R||..||84/100||4.5/5||4.5/5||4.5/5||Sep 2018||4,499|
|Hasselblad X1D II||..||..||4/5||..||4/5||Jun 2019||5,750|
|Hasselblad X1D||o||81/100||..||..||4/5||Jun 2016||8,995|
|Leica M10-R||..||..||..||..||4/5||Jul 2020||8,295|
|Leica M10-P||..||..||..||..||4/5||Aug 2018||7,995|
|Leica M10||..||..||4/5||..||4.5/5||Jan 2017||6,595|
|Leica M Typ 262||..||..||..||..||..||Nov 2015||5,195|
|Leica Q Typ 116||..||80/100||4.5/5||..||4.5/5||Jun 2015||4,249|
|Leica SL||..||84/100||4.5/5||4/5||4/5||Oct 2015||7,450|
|Nikon Z7||+||89/100||4.5/5||4.5/5||5/5||Aug 2018||3,399|
|Pentax 645D||..||..||..||4.5/5||..||Mar 2010||9,995|
|Zeiss ZX1||..||..||..||..||..||Sep 2018||4,199|
|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. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. 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 would like to check on the differences and similarities of other camera models, just make your choice using the following search menu. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.
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- Canon M6 Mark II vs Leica Q2
- Canon SX530 vs Pentax 645Z
- Leica Q2 vs Leica S-E Typ 006
- Leica Q2 vs Olympus TG-4
- Leica V-LUX 1 vs Pentax 645Z
- Nikon P7800 vs Pentax 645Z
- Olympus E-500 vs Pentax 645Z
- Olympus E-P3 vs Pentax 645Z
- Panasonic LX15 vs Pentax 645Z
- Pentax 645Z vs Ricoh GR II
- Pentax 645Z vs Sony RX100 II
Specifications: Leica Q2 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||Leica Q2||Pentax 645Z|
|Camera Type||Fixed lens compact camera||Digital single lens reflex|
|Camera Lens||28mm f/1.7||Pentax 645 mount lenses|
|Launch Date||March 2019||April 2014|
|Launch Price||USD 4,995||USD 8,499|
|Sensor Specs||Leica Q2||Pentax 645Z|
|Sensor Format||Full Frame Sensor||Medium Format Sensor|
|Sensor Size||36.0 x 24.0 mm||43.8 x 32.8 mm|
|Sensor Area||864 mm2||1436.64 mm2|
|Sensor Diagonal||43.3 mm||54.7 mm|
|Sensor Resolution||46.7 Megapixels||51.1 Megapixels|
|Image Resolution||8368 x 5584 pixels||8256 x 6192 pixels|
|Pixel Pitch||4.30 μm||5.30 μm|
|Pixel Density||5.41 MP/cm2||3.56 MP/cm2|
|Moiré control||no AA filter||no AA filter|
|Movie Capability||4K/30p Video||1080/60i Video|
|ISO Setting||50 - 50,000 ISO||100 - 204,800 ISO|
|DXO Sensor Quality (score)||96||101|
|DXO Color Depth (bits)||26.4||26.0|
|DXO Dynamic Range (EV)||13.5||14.7|
|DXO Low Light (ISO)||2491||4505|
|Screen Specs||Leica Q2||Pentax 645Z|
|Viewfinder Type||Electronic viewfinder||Optical viewfinder|
|Viewfinder Field of View||100%||98%|
|Viewfinder Resolution||3680k dots|
|Top-Level Screen||no Top Display||Control Panel|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||3.2inch|
|LCD Resolution||1040k dots||1037k dots|
|LCD Attachment||Fixed screen||Tilting screen|
|Touch Input||Touchscreen||no Touchscreen|
|Shooting Specs||Leica Q2||Pentax 645Z|
|Focus System||Contrast-detect AF||Phase-detect AF|
|Manual Focusing Aid||Focus Peaking||Focus Peaking|
|Max Shutter Speed (mechanical)||1/2000s||1/4000s|
|Continuous Shooting||20 shutter flaps/s||3 shutter flaps/s|
|Electronic Shutter||up to 1/40000s||no E-Shutter|
|Time-Lapse Photography||Intervalometer built-in||Intervalometer built-in|
|Fill Flash||no On-Board Flash||no On-Board Flash|
|Storage Medium||SDXC cards||SDXC cards|
|Second Storage Option||Single card slot||Dual card slots|
|UHS card support||UHS-II||UHS-I|
|Connectivity Specs||Leica Q2||Pentax 645Z|
|Studio Flash||no PC Sync||PC Sync socket|
|USB Connector||no USB||USB 3.0|
|HDMI Port||no HDMI||mini HDMI|
|Microphone Port||no MIC socket||External MIC port|
|Wifi Support||Wifi built-in||no Wifi|
|Bluetooth Support||Bluetooth built-in||no Bluetooth|
|Body Specs||Leica Q2||Pentax 645Z|
|Environmental Sealing||Weathersealed body||Weathersealed body|
|Battery Life (CIPA)||370 shots per charge||650 shots per charge|
130 x 80 x 92 mm
(5.1 x 3.1 x 3.6 in)
156 x 117 x 123 mm
(6.1 x 4.6 x 4.8 in)
|Camera Weight||718 g (25.3 oz)||1550 g (54.7 oz)|
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