Olympus E-M1X vs Pentax 645Z
The Olympus OM-D E-M1X and the Pentax 645Z are two digital cameras that were officially introduced, respectively, in January 2019 and April 2014. The E-M1X is a mirrorless interchangeable lens camera, while the 645Z is a DSLR. The cameras are based on a Four Thirds (E-M1X) and a medium format (645Z) sensor. The Olympus has a resolution of 20.2 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.
|Olympus E-M1X||Pentax 645Z|
|Mirrorless system camera||Digital single lens reflex|
|Micro Four Thirds lenses||Pentax 645 mount lenses|
|20.2 MP, Four Thirds Sensor||51.1 MP, Medium Format Sensor|
|4K/30p Video||1080/60i Video|
|ISO 200-25600||ISO 100-204800|
|Electronic viewfinder (2360k dots)||Optical viewfinder|
|3.0" LCD, 1037k dots||3.2" LCD, 1037k dots|
|Swivel touchscreen||Tilting screen (not touch-sensitive)|
|18 shutter flaps per second||3 shutter flaps per second|
|In-body stabilization||Lens stabilization only|
|Weathersealed body||Weathersealed body|
|870 shots per battery charge||650 shots per battery charge|
|144 x 147 x 75 mm, 997 g||156 x 117 x 123 mm, 1550 g|
Going beyond this snapshot of core features and characteristics, what are the differences between the Olympus OM-D E-M1X 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 Olympus E-M1X and the Pentax 645Z. The two cameras are presented according to their relative size. Three consecutive views from the front, the top, and the rear side are shown. All width, height and depth dimensions are rounded to the nearest millimeter.
The E-M1X can be obtained in two different colors (black, silver), 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 notably smaller (14 percent) than the Olympus E-M1X. However, the 645Z is substantially heavier (55 percent) than the E-M1X. 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 since they do not consider the interchangeable lenses that both of these cameras require. Hence, you might want to study and compare the specifications of available lenses in order to get the full picture of the size and weight of the two camera systems.
Concerning battery life, the E-M1X gets 870 shots out of its BLH-1 battery, while the 645Z can take 650 images on a single charge of its D-LI90 power pack. As can be seen in the images above, the E-M1X has a battery grip built in. This facilitates image-taking in portrait orientation and gives it additional battery power. The power pack in the E-M1X can be charged via the USB port, so that it is not always necessary to take the battery charger along when travelling.
The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. 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.
|Olympus E-M1X»||5.7 in||5.8 in||3.0 in||35.2 oz||870||Y||Jan 2019||2,999||Olympus E-M1X|
|Pentax 645Z«||6.1 in||4.6 in||4.8 in||54.7 oz||650||Y||Apr 2014||8,499||Pentax 645Z|
|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|
|Olympus E-M1 II« »||5.3 in||3.6 in||2.6 in||20.2 oz||440||Y||Sep 2016||1,999||Olympus E-M1 II|
|Olympus PEN-F« »||4.9 in||2.8 in||1.5 in||15.1 oz||330||n||Jan 2016||1,199||Olympus PEN-F|
|Olympus E-M5 II« »||4.9 in||3.3 in||1.8 in||16.5 oz||310||Y||Feb 2015||1,099||Olympus E-M5 II|
|Olympus E-M1« »||5.1 in||3.7 in||2.5 in||17.5 oz||350||Y||Sep 2013||1,399||-||Olympus E-M1|
|Panasonic S1« »||5.9 in||4.3 in||3.8 in||35.9 oz||400||Y||Feb 2019||2,499||Panasonic S1|
|Panasonic G90« »||5.1 in||3.7 in||3.0 in||18.9 oz||290||Y||Apr 2019||999||Panasonic G90|
|Panasonic G95« »||5.1 in||3.7 in||3.0 in||18.9 oz||290||Y||Apr 2019||999||Panasonic G95|
|Panasonic G9« »||5.4 in||3.8 in||3.6 in||23.2 oz||400||Y||Nov 2017||1,699||Panasonic G9|
|Panasonic GH5« »||5.5 in||3.9 in||3.4 in||25.6 oz||410||Y||Jan 2017||1,999||Panasonic GH5|
|Panasonic GX8« »||5.2 in||3.1 in||2.5 in||17.2 oz||330||Y||Jul 2015||1,199||-||Panasonic GX8|
|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.|
Any camera decision will naturally be influenced heavily by the price. 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 E-M1X was launched at a markedly lower price (by 65 percent) than the 645Z, which puts it into a different market segment. Normally, street prices remain initially close to the MSRP, but after a couple of months, the first discounts appear. 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 sensor inside a digital camera is one of the key determinants 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 tend to be associated with larger, more expensive camera bodies and lenses.
Of the two cameras under consideration, the Olympus E-M1X 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 E-M1X (20.2MP), but the 645Z nevertheless has larger individual pixels (pixel pitch of 5.30μm versus 3.34μm for the E-M1X) due to its larger sensor. However, the E-M1X is a much more recent model (by 4 years and 9 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 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 Olympus E-M1X are 25.9 x 19.4 inch or 65.8 x 49.4 cm for good quality, 20.7 x 15.6 inch or 52.7 x 39.5 cm for very good quality, and 17.3 x 13 inch or 43.9 x 32.9 cm for excellent quality prints.
The E-M1X has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.
Unlike the 645Z, the E-M1X has the capacity to capture high quality composite images (80MP) by combining multiple shots after shifting its sensor by miniscule distances. This multi-shot, pixel-shift mode is most suitable for photography of stationary objects (landscapes, studio scenes).
The Olympus OM-D E-M1X has a native sensitivity range from ISO 200 to ISO 25600, which can be extended to ISO 64-25600. 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 assesses and scores the color depth ("DXO Portrait"), dynamic range ("DXO Landscape"), and low-light sensitivity ("DXO Sports") of camera sensors, and also publishes an overall camera score. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
|Olympus E-M1X»||Four Thirds||20.2||5184||3888||4K/30p||-||-||-||-||Olympus E-M1X|
|Pentax 645Z«||Medium Format||51.1||8256||6192||1080/60i||26.0||14.7||4505||101||Pentax 645Z|
|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|
|Olympus E-M1 II« »||Four Thirds||20.2||5184||3888||4K/30p||23.7||12.8||1312||80||Olympus E-M1 II|
|Olympus PEN-F« »||Four Thirds||20.2||5184||3888||1080/60p||23.1||12.4||894||74||Olympus PEN-F|
|Olympus E-M5 II« »||Four Thirds||15.9||4608||3456||1080/60p||23.0||12.5||842||73||Olympus E-M5 II|
|Olympus E-M1« »||Four Thirds||15.9||4608||3456||1080/30p||23.0||12.7||757||73||Olympus E-M1|
|Panasonic S1« »||Full Frame||24.0||6000||4000||4K/60p||25.2||14.5||3333||95||Panasonic S1|
|Panasonic G90« »||Four Thirds||20.2||5184||3888||4K/30p||-||-||-||-||Panasonic G90|
|Panasonic G95« »||Four Thirds||20.2||5184||3888||4K/30p||-||-||-||-||Panasonic G95|
|Panasonic G9« »||Four Thirds||20.2||5184||3888||4K/60p||-||-||-||-||Panasonic G9|
|Panasonic GH5« »||Four Thirds||20.2||5184||3888||4K/60p||23.9||13.0||807||77||Panasonic GH5|
|Panasonic GX8« »||Four Thirds||20.2||5184||3888||4K/30p||23.5||12.6||806||75||Panasonic GX8|
|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. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the E-M1X 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 E-M1X has an electronic viewfinder (2360k 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 E-M1X 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. In addition, the viewfinder of the E-M1X has a higher magnification (0.83x vs 0.78x), 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 Olympus E-M1X, the Pentax 645Z, and comparable cameras.
|Olympus E-M1X»||2360||n||3.0||1037||swivel||Y||1/8000s||18.0||n||Y||Olympus E-M1X|
|Pentax 645Z«||optical||Y||3.2||1037||tilting||n||1/4000s||3.0||n||n||Pentax 645Z|
|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|
|Olympus E-M1 II« »||2360||n||3.0||1037||swivel||Y||1/8000s||18.0||n||Y||Olympus E-M1 II|
|Olympus PEN-F« »||2360||n||3.0||1037||swivel||Y||1/8000s||10.0||n||Y||Olympus PEN-F|
|Olympus E-M5 II« »||2360||n||3.0||1037||swivel||Y||1/8000s||10.0||n||Y||Olympus E-M5 II|
|Olympus E-M1« »||2360||n||3.0||1037||tilting||Y||1/8000s||10.0||n||Y||Olympus E-M1|
|Panasonic S1« »||5760||Y||3.2||2100||full-flex||Y||1/8000s||9.0||n||Y||Panasonic S1|
|Panasonic G90« »||2360||n||3.0||1240||swivel||Y||1/4000s||9.0||Y||Y||Panasonic G90|
|Panasonic G95« »||2360||n||3.0||1240||swivel||Y||1/4000s||9.0||Y||Y||Panasonic G95|
|Panasonic G9« »||3680||Y||3.0||1040||swivel||Y||1/8000s||20.0||n||Y||Panasonic G9|
|Panasonic GH5« »||3680||n||3.2||1620||swivel||Y||1/8000s||12.0||n||Y||Panasonic GH5|
|Panasonic GX8« »||2360||n||3.0||1040||swivel||Y||1/8000s||10.0||n||Y||Panasonic GX8|
|Pentax 645D« »||optical||Y||3.0||921||fixed||n||1/4000s||1.1||n||n||Pentax 645D|
One feature that differentiates the E-M1X and the 645Z is in-body image stabilization (IBIS). The E-M1X reduces the risk of handshake-induced blur with all attached lenses, while the 645Z has to rely on optical image stabilization in OIS-equipped lenses to achieve the same effect.The E-M1X 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 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 E-M1X 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 Olympus E-M1X 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 E-M1X and the 645Z write their files to SDXC cards. Both cameras feature dual card slots, which can be very useful in case a memory card fails. The E-M1X supports UHS-II cards (on both slots), while the 645Z can use UHS-I 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 Olympus OM-D E-M1X and Pentax 645Z and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
|Olympus E-M1X»||Y||stereo||mono||Y||Y||micro||3.0||Y||-||Y||Olympus E-M1X|
|Pentax 645Z«||Y||stereo||mono||Y||-||mini||3.0||-||-||-||Pentax 645Z|
|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|
|Olympus E-M1 II« »||Y||stereo||mono||Y||Y||micro||3.0||Y||-||-||Olympus E-M1 II|
|Olympus PEN-F« »||Y||stereo||mono||-||-||micro||2.0||Y||-||-||Olympus PEN-F|
|Olympus E-M5 II« »||Y||stereo||mono||Y||-||micro||2.0||Y||-||-||Olympus E-M5 II|
|Olympus E-M1« »||Y||stereo||mono||Y||-||micro||2.0||Y||-||-||Olympus E-M1|
|Panasonic S1« »||Y||stereo||mono||Y||Y||full||3.1||Y||-||Y||Panasonic S1|
|Panasonic G90« »||Y||stereo||mono||Y||Y||micro||2.0||Y||-||Y||Panasonic G90|
|Panasonic G95« »||Y||stereo||mono||Y||Y||micro||2.0||Y||-||Y||Panasonic G95|
|Panasonic G9« »||Y||stereo||mono||Y||Y||full||3.0||Y||-||Y||Panasonic G9|
|Panasonic GH5« »||Y||stereo||mono||Y||Y||full||3.1||Y||-||Y||Panasonic GH5|
|Panasonic GX8« »||Y||stereo||mono||Y||-||micro||2.0||Y||Y||-||Panasonic GX8|
|Pentax 645D« »||Y||stereo||-||-||-||-||2.0||-||-||-||Pentax 645D|
It is notable that the E-M1X has a headphone jack, which is not present on the 645Z This port makes it possible to attach external headphones and monitor the quality of sound during the recording process.
Both cameras feature a PC Sync terminal to control professional strobe lights, which will be appreciated by studio photographers.
Travel and landscape photographers will find it useful that the E-M1X has an internal geolocalization sensor and can record GPS coordinates in its EXIF data.
Both the E-M1X and the 645Z are recent models that are part of the current product line-up. The 645Z replaced the earlier Pentax 645D, while the E-M1X does not have a direct predecessor. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Olympus and Pentax websites.
So how do things add up? Is the Olympus E-M1X better than the Pentax 645Z or vice versa? Below is a summary of the relative strengths of each of the two contestants.
Arguments in favor of the Olympus OM-D E-M1X:
- High quality composites: Can combine several shots after pixel-shifting its sensor.
- Better video: Provides higher definition movie capture (4K/30p vs 1080/60i).
- Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
- Better sound control: Has a headphone port that enables audio monitoring while recording.
- 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%).
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.83x vs 0.78x).
- 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 shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
- Faster burst: Shoots at higher frequency (18 vs 3 flaps/sec) to capture the decisive moment.
- Less disturbing: Has an electronic shutter option for completely silent shooting.
- Less heavy: Is lighter (by 553g or 36 percent) and hence easier to carry around.
- More portrait friendly: Features an integrated vertical grip for easier portrait shooting.
- Longer lasting: Can take more shots (870 versus 650) on a single battery charge.
- Easier travel charging: Can be conveniently charged via its USB port.
- Sharper images: Has hand-shake reducing image stabilization built-in.
- More legacy lens friendly: Can take a broad range of non-native lenses via adapters.
- Easier geotagging: Features an internal GPS sensor to log localization data.
- 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 affordable: Was introduced into a lower priced category (65 percent cheaper at launch).
- More modern: Reflects 4 years and 9 months of technical progress since the 645Z launch.
Reasons to prefer the Pentax 645Z:
- More detail: Has more megapixels (51.1 vs 20.2MP), which boosts linear resolution by 59%.
- Brighter framing: Features an optical viewfinder for clear, lag-free composition.
- Easier setting verification: Features a control panel on top to check shooting parameters.
- Larger screen: Has a bigger rear LCD (3.2" vs 3.0") for image review and settings control.
- More compact: Is smaller (156x117mm vs 144x147mm) and will fit more readily into a bag.
- More heavily discounted: Has been around for much longer (launched in April 2014).
If the count of relative strengths (bullet points above) is taken as a measure, the E-M1X is the clear winner of the match-up (24 : 6 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 wildlife photographer will view the differences between cameras in a way that diverges from the perspective of a family photog, and a person interested in architecture has distinct needs from a sports shooter. Hence, the decision which camera is best and worth buying is often a very personal one.
How about other alternatives? Do the specifications of the Olympus E-M1X 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 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 E-M1X or the 645Z. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.
This is why hands-on reviews by experts are important. 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.
|Olympus E-M1X»||o||-||4.5/5||5/5||-||Jan 2019||2,999||Olympus E-M1X|
|Pentax 645Z«||-||-||4.5/5||5/5||5/5||Apr 2014||8,499||Pentax 645Z|
|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|
|Olympus E-M1 II« »||+ +||85/100||4.5/5||5/5||4.5/5||Sep 2016||1,999||Olympus E-M1 II|
|Olympus PEN-F« »||-||82/100||4.5/5||4.5/5||5/5||Jan 2016||1,199||Olympus PEN-F|
|Olympus E-M5 II« »||+ +||81/100||5/5||4.5/5||5/5||Feb 2015||1,099||Olympus E-M5 II|
|Olympus E-M1« »||+ +||84/100||4.5/5||4.5/5||4.5/5||Sep 2013||1,399||-||Olympus E-M1|
|Panasonic S1« »||+ +||88/100||4.5/5||-||4/5||Feb 2019||2,499||Panasonic S1|
|Panasonic G90« »||+||83/100||4.5/5||-||4.5/5||Apr 2019||999||Panasonic G90|
|Panasonic G95« »||+||83/100||4.5/5||-||4.5/5||Apr 2019||999||Panasonic G95|
|Panasonic G9« »||+ +||85/100||5/5||5/5||5/5||Nov 2017||1,699||Panasonic G9|
|Panasonic GH5« »||+ +||85/100||4.5/5||5/5||5/5||Jan 2017||1,999||Panasonic GH5|
|Panasonic GX8« »||+||82/100||4.5/5||5/5||4.5/5||Jul 2015||1,199||-||Panasonic GX8|
|Pentax 645D« »||-||-||-||4.5/5||-||Mar 2010||9,995||-||Pentax 645D|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (-) not available.|
The review scores listed above should be treated with care, though. The ratings are only valid when referring to cameras in the same category and of the same age. 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
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. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.
- Canon 5DS vs Olympus E-M1X
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Specifications: Olympus E-M1X 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||Olympus E-M1X||Pentax 645Z|
|Camera Type||Mirrorless system camera||Digital single lens reflex|
|Camera Lens||Micro Four Thirds lenses||Pentax 645 mount lenses|
|Launch Date||January 2019||April 2014|
|Launch Price||USD 2999||USD 8499|
|Sensor Specs||Olympus E-M1X||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||20.2 Megapixels||51.1 Megapixels|
|Image Resolution||5184 x 3888 pixels||8256 x 6192 pixels|
|Pixel Pitch||3.34 μm||5.30 μm|
|Pixel Density||8.96 MP/cm2||3.56 MP/cm2|
|Moiré control||no AA filter||no AA filter|
|Movie Capability||4K/30p Video||1080/60i Video|
|ISO Setting||200-25600 ISO||100-204800 ISO|
|ISO Boost||64-25600 ISO||no Enhancement|
|Image Processor||Dual TruePic VIII||PRIME III|
|DXO Sensor Quality (score)||..||101|
|DXO Color Depth (bits)||..||26.0|
|DXO Dynamic Range (EV)||..||14.7|
|DXO Low Light (ISO)||..||4505|
|Screen Specs||Olympus E-M1X||Pentax 645Z|
|Viewfinder Type||Electronic viewfinder||Optical viewfinder|
|Viewfinder Field of View||100%||98%|
|Viewfinder Resolution||2360k dots|
|Top-Level Screen||no Top Display||Control Panel|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0 inch||3.2 inch|
|LCD Resolution||1037k dots||1037k dots|
|LCD Attachment||Swivel screen||Tilting screen|
|Touch Input||Touchscreen||no Touchscreen|
|Shooting Specs||Olympus E-M1X||Pentax 645Z|
|Autofocus System||On-Sensor Phase-detect||Phase-detect AF|
|Manual Focusing Aid||Focus Peaking||Focus Peaking|
|Max Shutter Speed (mechanical)||1/8000/s||1/4000/s|
|Continuous Shooting||18 shutter flaps/s||3 shutter flaps/s|
|Shutter Life Expectancy||200 000 actuations||100 000 actuations|
|Electronic Shutter||up to 1/32000s||no E-Shutter|
|Time-Lapse Photography||Intervalometer built-in||Intervalometer built-in|
|Image Stabilization||In-body stabilization||Lens stabilization only|
|Fill Flash||no On-Board Flash||no On-Board Flash|
|Storage Medium||SDXC cards||SDXC cards|
|Second Storage Option||Dual card slots||Dual card slots|
|UHS card support||Dual UHS-II||UHS-I|
|Connectivity Specs||Olympus E-M1X||Pentax 645Z|
|Studio Flash||PC Sync socket||PC Sync socket|
|USB Connector||USB 3.0||USB 3.0|
|HDMI Port||micro HDMI||mini HDMI|
|Microphone Port||External MIC port||External MIC port|
|Headphone Socket||Headphone port||no Headphone port|
|Wifi Support||Wifi built-in||no Wifi|
|Bluetooth Support||Bluetooth built-in||no Bluetooth|
|Geotagging||GPS built-in||no internal GPS|
|Body Specs||Olympus E-M1X||Pentax 645Z|
|Environmental Sealing||Weathersealed body||Weathersealed body|
|Battery Life (CIPA)||870 shots per charge||650 shots per charge|
|In-Camera Charging||USB charging||no USB charging|
144 x 147 x 75 mm
(5.7 x 5.8 x 3.0 in)
156 x 117 x 123 mm
(6.1 x 4.6 x 4.8 in)
|Camera Weight||997 g (35.2 oz)||1550 g (54.7 oz)|
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