Olympus E-M10 II vs Pentax 645Z
The Olympus OM-D E-M10 Mark II and the Pentax 645Z are two digital cameras that were officially introduced, respectively, in August 2015 and April 2014. The E-M10 II is a mirrorless interchangeable lens camera, while the 645Z is a DSLR. The cameras are based on a Four Thirds (E-M10 II) and a medium format (645Z) sensor. The Olympus has a resolution of 15.9 megapixels, whereas the Pentax provides 51.1 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
Going beyond this snapshot of core features and characteristics, what are the differences between the Olympus OM-D E-M10 Mark II 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.
Body comparison
The side-by-side display below illustrates the physical size and weight of the Olympus E-M10 II and the Pentax 645Z. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All size dimensions are rounded to the nearest millimeter.
The E-M10 II can be obtained in three different colors (black, silver, brown), while the 645Z is only available in black.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Pentax 645Z is considerably larger (83 percent) than the Olympus E-M10 II. Moreover, the 645Z is substantially heavier (297 percent) than the E-M10 II. It is noteworthy in this context that the 645Z is splash and dust-proof, while the E-M10 II 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.
Concerning battery life, the E-M10 II gets 320 shots out of its Olympus BLS-50 battery, while the 645Z can take 650 images on a single charge of its Pentax D-LI90 power pack.
The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. In case you want to display and compare another camera duo, you can use the CAM-parator app to select your camera combination among a large number of options.
# | Camera Model |
Camera Width |
Camera Height |
Camera Depth |
Camera Weight |
Battery Life |
Weather Sealing |
Camera Launch |
Launch Price (USD) |
Street Price |
|
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Olympus E-M10 II | 120 mm | 83 mm | 47 mm | 390 g | 320 | n | Aug 2015 | 649 | ebay.com | |
2. | Pentax 645Z | 156 mm | 117 mm | 123 mm | 1550 g | 650 | Y | Apr 2014 | 8,499 | ebay.com | |
3. | Canon 5DS | 152 mm | 116 mm | 76 mm | 930 g | 700 | Y | Feb 2015 | 3,699 | ebay.com | |
4. | Canon 5DS R | 152 mm | 116 mm | 76 mm | 930 g | 700 | Y | Feb 2015 | 3,699 | ebay.com | |
5. | Hasselblad X1D | 150 mm | 98 mm | 71 mm | 725 g | .. | Y | Jun 2016 | 8,995 | ebay.com | |
6. | Leica SL | 147 mm | 104 mm | 39 mm | 847 g | 400 | Y | Oct 2015 | 7,450 | ebay.com | |
7. | Olympus E-PL9 | 117 mm | 68 mm | 39 mm | 380 g | 350 | n | Feb 2018 | 599 | ebay.com | |
8. | Olympus E-M10 III | 122 mm | 84 mm | 50 mm | 410 g | 330 | n | Aug 2017 | 649 | ebay.com | |
9. | Olympus E-PL8 | 115 mm | 67 mm | 38 mm | 357 g | 350 | n | Sep 2016 | 549 | ebay.com | |
10. | Olympus PEN-F | 125 mm | 72 mm | 37 mm | 427 g | 330 | n | Jan 2016 | 1,199 | ebay.com | |
11. | Olympus E-M10 | 119 mm | 82 mm | 46 mm | 396 g | 320 | n | Jan 2014 | 699 | ebay.com | |
12. | Olympus E-PL7 | 115 mm | 67 mm | 38 mm | 357 g | 350 | n | Aug 2014 | 599 | ebay.com | |
13. | Olympus E-P5 | 122 mm | 69 mm | 37 mm | 420 g | 330 | n | May 2013 | 999 | ebay.com | |
14. | Olympus E-PL6 | 111 mm | 64 mm | 38 mm | 325 g | 360 | n | May 2013 | 599 | ebay.com | |
15. | Olympus E-PL5 | 111 mm | 64 mm | 38 mm | 325 g | 360 | n | Sep 2012 | 599 | ebay.com | |
16. | Panasonic GX85 | 122 mm | 71 mm | 44 mm | 426 g | 290 | n | Apr 2016 | 799 | amazon.com | |
17. | Pentax 645D | 156 mm | 117 mm | 119 mm | 1480 g | 800 | Y | Mar 2010 | 9,995 | ebay.com | |
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders. | |||||||||||
The price is, of course, an important factor in any camera decision. The manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The E-M10 II 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.
Sensor comparison
The imaging sensor is at the core of digital cameras and its size is one of the main determining factors 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. Further, a large sensor camera will give the photographer additional creative options when using shallow depth-of-field to isolate a subject from its 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 Olympus E-M10 II 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-M10 II (15.9MP), but the 645Z nevertheless has larger individual pixels (pixel pitch of 5.30μm versus 3.76μm for the E-M10 II) due to its larger sensor. However, the E-M10 II is a somewhat more recent model (by 1 year and 4 months) than the 645Z, and its sensor might 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 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 Olympus E-M10 II are 23 x 17.3 inches or 58.5 x 43.9 cm for good quality, 18.4 x 13.8 inches or 46.8 x 35.1 cm for very good quality, and 15.4 x 11.5 inches or 39 x 29.3 cm for excellent quality prints.
The Olympus OM-D E-M10 Mark II has a native sensitivity range from ISO 200 to ISO 25600, which can be extended to ISO 100-25600. The corresponding ISO settings for the Pentax 645Z are ISO 100 to ISO 204800 (no boost).
Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.
For many cameras, data on sensor performance has been reported by DXO Mark. 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. Of the two cameras under consideration, the 645Z offers substantially better image quality than the E-M10 II (overall score 28 points higher). The advantage is based on 2.9 bits higher color depth, 2.2 EV in additional dynamic range, and 2.4 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.
# | Camera Model |
Sensor Class |
Resolution (MP) |
Horiz. Pixels |
Vert. Pixels |
Video Format |
DXO Portrait |
DXO Landscape |
DXO Sports |
DXO Overall |
|
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Olympus E-M10 II | Four Thirds | 15.9 | 4608 | 3456 | 1080/60p | 23.1 | 12.5 | 842 | 73 | |
2. | Pentax 645Z | Medium Format | 51.1 | 8256 | 6192 | 1080/60i | 26.0 | 14.7 | 4505 | 101 | |
3. | Canon 5DS | Full Frame | 50.3 | 8688 | 5792 | 1080/30p | 24.7 | 12.4 | 2381 | 87 | |
4. | Canon 5DS R | Full Frame | 50.3 | 8688 | 5792 | 1080/30p | 24.6 | 12.4 | 2308 | 86 | |
5. | Hasselblad X1D | Medium Format | 51.3 | 8272 | 6200 | 1080/25p | 26.2 | 14.8 | 4489 | 102 | |
6. | Leica SL | Full Frame | 24.0 | 6000 | 4000 | 4K/30p | 25.0 | 13.4 | 1821 | 88 | |
7. | Olympus E-PL9 | Four Thirds | 15.9 | 4608 | 3456 | 4K/30p | 23.1 | 12.8 | 1162 | 74 | |
8. | Olympus E-M10 III | Four Thirds | 15.9 | 4608 | 3456 | 4K/30p | 23.1 | 12.8 | 1120 | 74 | |
9. | Olympus E-PL8 | Four Thirds | 15.9 | 4608 | 3456 | 1080/30p | 23.0 | 12.6 | 1030 | 73 | |
10. | Olympus PEN-F | Four Thirds | 20.2 | 5184 | 3888 | 1080/60p | 23.1 | 12.4 | 894 | 74 | |
11. | Olympus E-M10 | Four Thirds | 15.9 | 4608 | 3456 | 1080/30p | 22.8 | 12.3 | 884 | 72 | |
12. | Olympus E-PL7 | Four Thirds | 15.9 | 4608 | 3456 | 1080/30p | 22.7 | 12.4 | 873 | 72 | |
13. | Olympus E-P5 | Four Thirds | 15.9 | 4608 | 3456 | 1080/30p | 22.8 | 12.4 | 895 | 72 | |
14. | Olympus E-PL6 | Four Thirds | 15.9 | 4608 | 3456 | 1080/30p | 22.5 | 12.0 | 717 | 68 | |
15. | Olympus E-PL5 | Four Thirds | 15.9 | 4608 | 3456 | 1080/30p | 22.8 | 12.3 | 889 | 72 | |
16. | Panasonic GX85 | Four Thirds | 15.8 | 4592 | 3448 | 4K/30p | 22.9 | 12.6 | 662 | 71 | |
17. | Pentax 645D | Medium Format | 39.5 | 7264 | 5440 | none | 24.6 | 12.6 | 1262 | 82 | |
Note: DXO values in italics represent estimates based on sensor size and age. |
Many modern cameras cannot only take still pictures, but also record videos. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the E-M10 II provides a higher frame rate than the 645Z. It can shoot video footage at 1080/60p, while the Pentax is limited to 1080/60i.
Feature comparison
Apart from body and sensor, cameras can and do differ across a range of features. For example, the E-M10 II 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-M10 II 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 0.62x), 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 Olympus E-M10 II and Pentax 645Z in connection with corresponding information for a sample of similar cameras.
# | Camera Model |
Viewfinder (Type or 000 dots) |
Control Panel (yes/no) |
LCD Specifications (inch/000 dots) |
LCD Attach- ment |
Touch Screen (yes/no) |
Max Shutter Speed * |
Max Shutter Flaps * |
Built-in Flash (yes/no) |
Built-in Image Stab |
|
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Olympus E-M10 II | 2360 | n | 3.0 / 1040 | tilting | Y | 1/4000s | 8.0/s | Y | Y | |
2. | Pentax 645Z | optical | Y | 3.2 / 1037 | tilting | n | 1/4000s | 3.0/s | n | n | |
3. | Canon 5DS | optical | Y | 3.2 / 1040 | fixed | n | 1/8000s | 5.0/s | n | n | |
4. | Canon 5DS R | optical | Y | 3.2 / 1040 | fixed | n | 1/8000s | 5.0/s | n | n | |
5. | Hasselblad X1D | 2360 | n | 3.0 / 920 | fixed | Y | 1/2000s | 2.3/s | n | n | |
6. | Leica SL | 4400 | Y | 3.0 / 1040 | fixed | Y | 1/8000s | 11.0/s | n | n | |
7. | Olympus E-PL9 | none | n | 3.0 / 1040 | tilting | Y | 1/4000s | 8.6/s | Y | Y | |
8. | Olympus E-M10 III | 2360 | n | 3.0 / 1040 | tilting | Y | 1/4000s | 8.6/s | Y | Y | |
9. | Olympus E-PL8 | optional | n | 3.0 / 1037 | tilting | Y | 1/4000s | 8.0/s | n | Y | |
10. | Olympus PEN-F | 2360 | n | 3.0 / 1037 | swivel | Y | 1/8000s | 10.0/s | n | Y | |
11. | Olympus E-M10 | 1440 | n | 3.0 / 1037 | tilting | Y | 1/4000s | 8.0/s | Y | Y | |
12. | Olympus E-PL7 | optional | n | 3.0 / 1037 | tilting | Y | 1/4000s | 8.0/s | n | Y | |
13. | Olympus E-P5 | optional | n | 3.0 / 1037 | tilting | Y | 1/8000s | 9.0/s | Y | Y | |
14. | Olympus E-PL6 | optional | n | 3.0 / 460 | tilting | Y | 1/4000s | 8.0/s | n | Y | |
15. | Olympus E-PL5 | optional | n | 3.0 / 460 | tilting | Y | 1/4000s | 8.0/s | n | Y | |
16. | Panasonic GX85 | 2765 | n | 3.0 / 1040 | tilting | Y | 1/4000s | 8.0/s | Y | Y | |
17. | Pentax 645D | optical | Y | 3.0 / 921 | fixed | n | 1/4000s | 1.1/s | n | n | |
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one. |
One difference between the cameras concerns the presence of an on-board flash. The E-M10 II has one, while the 645Z does not. While the built-in flash of the E-M10 II is not very powerful, it can at times be useful as a fill-in light.
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-M10 II 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-M10 II 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-M10 II 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 E-M10 II 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.
Connectivity comparison
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-M10 Mark II and Pentax 645Z and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
# | Camera Model |
Hotshoe Port |
Internal Mic / Speaker |
Microphone Port |
Headphone Port |
HDMI Port |
USB Port |
WiFi Support |
NFC Support |
Bluetooth Support |
|
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Olympus E-M10 II | Y | stereo / mono | - | - | micro | 2.0 | Y | - | - | |
2. | Pentax 645Z | Y | stereo / mono | Y | - | mini | 3.0 | - | - | - | |
3. | Canon 5DS | Y | mono / mono | Y | - | mini | 3.0 | - | - | - | |
4. | Canon 5DS R | Y | mono / mono | Y | - | mini | 3.0 | - | - | - | |
5. | Hasselblad X1D | Y | stereo / mono | Y | Y | mini | 3.0 | Y | - | - | |
6. | Leica SL | Y | stereo / mono | Y | Y | full | 3.0 | Y | - | - | |
7. | Olympus E-PL9 | Y | stereo / mono | - | - | micro | 2.0 | Y | - | Y | |
8. | Olympus E-M10 III | Y | stereo / mono | - | - | micro | 2.0 | Y | - | - | |
9. | Olympus E-PL8 | Y | stereo / mono | - | - | micro | 2.0 | Y | - | - | |
10. | Olympus PEN-F | Y | stereo / mono | - | - | micro | 2.0 | Y | - | - | |
11. | Olympus E-M10 | Y | stereo / mono | - | - | micro | 2.0 | Y | - | - | |
12. | Olympus E-PL7 | Y | stereo / mono | - | - | micro | 2.0 | Y | - | - | |
13. | Olympus E-P5 | Y | stereo / mono | - | - | micro | 2.0 | Y | - | - | |
14. | Olympus E-PL6 | Y | stereo / mono | - | - | mini | 2.0 | - | - | - | |
15. | Olympus E-PL5 | Y | stereo / mono | - | - | mini | 2.0 | - | - | - | |
16. | Panasonic GX85 | Y | stereo / mono | - | - | micro | 2.0 | Y | - | - | |
17. | Pentax 645D | Y | stereo / - | - | - | - | 2.0 | - | - | - |
It is notable that the E-M10 II 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 E-M10 II) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
Both the E-M10 II and the 645Z have been discontinued, but can regularly be found used on ebay. The E-M10 II was replaced by the Olympus E-M10 III, while the 645Z does not have a direct successor. Further information on the features and operation of the E-M10 II and 645Z can be found, respectively, in the Olympus E-M10 II Manual (free pdf) or the online Pentax 645Z Manual.
Review summary
So what conclusions can be drawn? Is the Olympus E-M10 II better than the Pentax 645Z or vice versa? The listing below highlights the relative strengths of the two models.
Advantages of the Olympus OM-D E-M10 Mark II:
- Better video: Provides higher movie framerates (1080/60p versus 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 (8 vs 3 flaps/sec) to capture the decisive moment.
- Less disturbing: Has an electronic shutter option for completely silent shooting.
- More compact: Is smaller (120x83mm vs 156x117mm) and thus needs less room in the bag.
- Less heavy: Is lighter (by 1160g or 75 percent) and hence easier to carry around.
- 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 fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
- 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 (92 percent cheaper at launch).
- More modern: Is somewhat more recent (announced 1 year and 4 months after the 645Z).
Reasons to prefer the Pentax 645Z:
- More detail: Has more megapixels (51.1 vs 15.9MP), which boosts linear resolution by 79%.
- Better image quality: Scores substantially higher (28 points) in the DXO overall evaluation.
- Richer colors: Generates noticeably more natural colors (2.9 bits more color depth).
- More dynamic range: Captures a broader range of light and dark details (2.2 EV of extra DR).
- Better low-light sensitivity: Can shoot in dim conditions (2.4 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 0.62x).
- 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.
- Longer lasting: Gets more shots (650 versus 320) out of a single battery charge.
- Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
- Faster data transfer: Supports a more advanced USB protocol (3.0 vs 2.0).
- Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
- Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
- More heavily discounted: Has been on the market for longer (launched in April 2014).
If the number of relative strengths (bullet points above) is taken as a guide, the 645Z emerges as the winner of the match-up (16 : 14 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 Olympus E-M10 II 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 incomplete and does no justice, for example, to the way the E-M10 II or the 645Z perform in practice. 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
This is why hands-on reviews by experts are important. The following table reports the overall ratings of the cameras as published by some of the major 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.
# | Camera Model |
AP score |
CL score |
DCW score |
DPR score |
EPZ score |
PB score |
Camera Launch |
Launch Price (USD) |
Street Price |
|
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Olympus E-M10 II | 4.5/5 | + + | .. | 80/100 | 5/5 | 5/5 | Aug 2015 | 649 | ebay.com | |
2. | Pentax 645Z | 5/5 | .. | 3.5/5 | .. | 4.5/5 | 5/5 | Apr 2014 | 8,499 | ebay.com | |
3. | Canon 5DS | .. | + | .. | 83/100 | 4.5/5 | 4.5/5 | Feb 2015 | 3,699 | ebay.com | |
4. | Canon 5DS R | 5/5 | + | .. | 83/100 | 5/5 | 4.5/5 | Feb 2015 | 3,699 | ebay.com | |
5. | Hasselblad X1D | .. | o | .. | 81/100 | .. | 4/5 | Jun 2016 | 8,995 | ebay.com | |
6. | Leica SL | 4/5 | .. | 4/5 | 84/100 | 4.5/5 | 4/5 | Oct 2015 | 7,450 | ebay.com | |
7. | Olympus E-PL9 | .. | + | .. | .. | 4.5/5 | 4/5 | Feb 2018 | 599 | ebay.com | |
8. | Olympus E-M10 III | .. | + | 5/5 | 80/100 | 4.5/5 | 4.5/5 | Aug 2017 | 649 | ebay.com | |
9. | Olympus E-PL8 | .. | .. | .. | .. | 4.5/5 | 4/5 | Sep 2016 | 549 | ebay.com | |
10. | Olympus PEN-F | .. | .. | 4/5 | 82/100 | 4.5/5 | 5/5 | Jan 2016 | 1,199 | ebay.com | |
11. | Olympus E-M10 | 4/5 | .. | .. | 80/100 | 5/5 | 5/5 | Jan 2014 | 699 | ebay.com | |
12. | Olympus E-PL7 | 4/5 | + | .. | .. | 5/5 | 4/5 | Aug 2014 | 599 | ebay.com | |
13. | Olympus E-P5 | 5/5 | + + | .. | 78/100 | 4.5/5 | 5/5 | May 2013 | 999 | ebay.com | |
14. | Olympus E-PL6 | .. | .. | .. | .. | .. | .. | May 2013 | 599 | ebay.com | |
15. | Olympus E-PL5 | 3/5 | + + | .. | .. | 4.5/5 | 4.5/5 | Sep 2012 | 599 | ebay.com | |
16. | Panasonic GX85 | 4.5/5 | + + | .. | 82/100 | 5/5 | 5/5 | Apr 2016 | 799 | amazon.com | |
17. | Pentax 645D | 5/5 | .. | .. | .. | .. | .. | Mar 2010 | 9,995 | ebay.com | |
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available. |
The above review scores should be interpreted with care, though. The ratings are only valid when referring to cameras in the same category and of the same age. 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. It should also be noted that some of the review sites have over time altered the way they render their verdicts.
Other camera comparisons
Did this review help to inform your camera decision process? If you would like to see a different side-by-side camera review, just use the search menu below. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.
- Canon 20D vs Pentax 645Z
- Canon SX410 vs Olympus E-M10 II
- Fujifilm X-A3 vs Pentax 645Z
- Fujifilm X-H1 vs Olympus E-M10 II
- Fujifilm X100V vs Pentax 645Z
- Leica V-LUX 5 vs Olympus E-M10 II
- Olympus E-M10 II vs Panasonic G90
- Olympus E-M10 II vs Panasonic GH4
- Olympus E-M10 II vs Sony A6100
- Panasonic LX7 vs Pentax 645Z
- Pentax 645Z vs Sony A7
- Pentax 645Z vs Sony A7R III
Specifications: Olympus E-M10 II 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-M10 II | Pentax 645Z |
---|---|---|
Camera Type | Mirrorless system camera | Digital single lens reflex |
Camera Lens | Micro Four Thirds lenses | Pentax 645 mount lenses |
Launch Date | August 2015 | April 2014 |
Launch Price | USD 649 | USD 8,499 |
Sensor Specs | Olympus E-M10 II | Pentax 645Z |
Sensor Technology | CMOS | CMOS |
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 |
Crop Factor | 2.0x | 0.79x |
Sensor Resolution | 15.9 Megapixels | 51.1 Megapixels |
Image Resolution | 4608 x 3456 pixels | 8256 x 6192 pixels |
Pixel Pitch | 3.76 μm | 5.30 μm |
Pixel Density | 7.08 MP/cm2 | 3.56 MP/cm2 |
Moiré control | no AA filter | no AA filter |
Movie Capability | 1080/60p Video | 1080/60i Video |
ISO Setting | 200 - 25,600 ISO | 100 - 204,800 ISO |
ISO Boost | 100 - 25,600 ISO | no Enhancement |
Image Processor | TruePic VII | PRIME III |
DXO Sensor Quality (score) | 73 | 101 |
DXO Color Depth (bits) | 23.1 | 26.0 |
DXO Dynamic Range (EV) | 12.5 | 14.7 |
DXO Low Light (ISO) | 842 | 4505 |
Screen Specs | Olympus E-M10 II | Pentax 645Z |
Viewfinder Type | Electronic viewfinder | Optical viewfinder |
Viewfinder Field of View | 100% | 98% |
Viewfinder Magnification | 0.62x | 0.78x |
Viewfinder Resolution | 2360k 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 | Tilting screen | Tilting screen |
Touch Input | Touchscreen | no Touchscreen |
Shooting Specs | Olympus E-M10 II | Pentax 645Z |
Focus System | Contrast-detect AF | Phase-detect AF |
Manual Focusing Aid | Focus Peaking | Focus Peaking |
Max Shutter Speed (mechanical) | 1/4000s | 1/4000s |
Continuous Shooting | 8 shutter flaps/s | 3 shutter flaps/s |
Electronic Shutter | up to 1/16000s | no E-Shutter |
Time-Lapse Photography | Intervalometer built-in | Intervalometer built-in |
Image Stabilization | In-body stabilization | Lens stabilization only |
Fill Flash | Built-in Flash | no On-Board Flash |
Storage Medium | SDXC cards | SDXC cards |
Single or Dual Card Slots | Single card slot | Dual card slots |
UHS card support | UHS-I | UHS-I |
Connectivity Specs | Olympus E-M10 II | Pentax 645Z |
External Flash | Hotshoe | Hotshoe |
Studio Flash | no PC Sync | PC Sync socket |
USB Connector | USB 2.0 | USB 3.0 |
HDMI Port | micro HDMI | mini HDMI |
Microphone Port | no MIC socket | External MIC port |
Wifi Support | Wifi built-in | no Wifi |
Body Specs | Olympus E-M10 II | Pentax 645Z |
Environmental Sealing | not weather sealed | Weathersealed body |
Battery Type | Olympus BLS-50 | Pentax D-LI90 |
Battery Life (CIPA) | 320 shots per charge | 650 shots per charge |
Body Dimensions |
120 x 83 x 47 mm (4.7 x 3.3 x 1.9 in) |
156 x 117 x 123 mm (6.1 x 4.6 x 4.8 in) |
Camera Weight | 390 g (13.8 oz) | 1550 g (54.7 oz) |
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