Nikon Z5 vs Olympus E-M10 II
The Nikon Z5 and the Olympus OM-D E-M10 Mark II are two digital cameras that were announced, respectively, in July 2020 and August 2015. Both the Z5 and the E-M10 II are mirrorless interchangeable lens cameras that are based on a full frame (Z5) and a Four Thirds (E-M10 II) sensor. The Nikon has a resolution of 24.2 megapixels, whereas the Olympus provides 15.9 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 Nikon Z5 and the Olympus OM-D E-M10 Mark II? 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 Nikon Z5 and the Olympus E-M10 II. 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 measures are rounded to the nearest millimeter.
The E-M10 II can be obtained in three different colors (black, silver, brown), while the Z5 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 Olympus E-M10 II is notably smaller (26 percent) than the Nikon Z5. Moreover, the E-M10 II is substantially lighter (42 percent) than the Z5. It is worth mentioning in this context that the Z5 is splash and dust resistant, 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 Z5 gets 470 shots out of its EN-EL15c battery, while the E-M10 II can take 320 images on a single charge of its BLS-50 power pack. The power pack in the Z5 can be charged via the USB port, so that it is not always necessary to take the battery charger along when travelling.
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, you can navigate to the CAM-parator app and make your selection from a broad list of cameras there.
|1.||Nikon Z5||5.3 in||4.0 in||2.6 in||23.8 oz||470||Y||Jul 2020||1,399|
|2.||Olympus E-M10 II||4.7 in||3.3 in||1.9 in||13.8 oz||320||n||Aug 2015||649|
|3.||Canon R6||5.4 in||3.9 in||3.5 in||24.0 oz||360||Y||Jul 2020||2,499|
|4.||Fujifilm X-T4||5.3 in||3.7 in||2.5 in||21.4 oz||500||Y||Feb 2020||1,699|
|5.||Nikon Z7 II||5.3 in||4.0 in||2.8 in||24.9 oz||420||Y||Oct 2020||2,999|
|6.||Nikon Z6 II||5.3 in||4.0 in||2.8 in||24.9 oz||410||Y||Oct 2020||1,999|
|7.||Nikon Z6||5.3 in||4.0 in||2.6 in||23.8 oz||310||Y||Aug 2018||1,999|
|8.||Nikon Z7||5.3 in||4.0 in||2.6 in||23.8 oz||330||Y||Aug 2018||3,399|
|9.||Olympus E-M10 III||4.8 in||3.3 in||2.0 in||14.5 oz||330||n||Aug 2017||649|
|10.||Olympus E-PL8||4.5 in||2.6 in||1.5 in||12.6 oz||350||n||Sep 2016||549|
|11.||Olympus E-M10||4.7 in||3.2 in||1.8 in||14.0 oz||320||n||Jan 2014||699|
|12.||Olympus E-P5||4.8 in||2.7 in||1.5 in||14.8 oz||330||n||May 2013||999|
|13.||Olympus E-PL5||4.4 in||2.5 in||1.5 in||11.5 oz||360||n||Sep 2012||599|
|14.||Panasonic S5||5.2 in||3.9 in||3.2 in||25.2 oz||440||Y||Sep 2020||1,999|
|15.||Panasonic S1||5.9 in||4.3 in||3.8 in||35.9 oz||400||Y||Feb 2019||2,499|
|16.||Sony A9 II||5.1 in||3.8 in||3.0 in||23.9 oz||690||Y||Oct 2019||4,499|
|17.||Sony A7R IV||5.1 in||3.8 in||3.1 in||23.5 oz||670||Y||Jul 2019||3,499|
|Notes: Measurements and pricing do not include easily detachable parts, such as add-on or 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-M10 II was launched at a markedly lower price (by 54 percent) than the Z5, which puts it into a different market segment. Usually, retail prices stay at first close to the launch price, but after several months, discounts become available. Later in the product cycle and, in particular, when the replacement model is about to appear, further discounting and stock clearance sales often push the camera price considerably down.
The size of the sensor inside a digital camera is one of the key determinants of image quality. A large sensor will tend to have larger individual pixels that provide better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixel-units 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 associated with larger, more expensive camera bodies and lenses.
Of the two cameras under consideration, the Nikon Z5 features a full frame sensor and the Olympus E-M10 II a Four Thirds sensor. The sensor area in the E-M10 II is 74 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.0 and 2.0. The sensor in the Z5 has a native 3:2 aspect ratio, while the one in the E-M10 II offers a 4:3 aspect.
With 24.2MP, the Z5 offers a higher resolution than the E-M10 II (15.9MP), but the Z5 nevertheless has larger individual pixels (pixel pitch of 5.95μm versus 3.76μm for the E-M10 II) due to its larger sensor. Moreover, the Z5 is a much more recent model (by 4 years and 10 months) than the E-M10 II, 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 E-M10 II has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
The resolution advantage of the Nikon Z5 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the Z5 for good quality output (200 dots per inch) amounts to 30.1 x 20.1 inches or 76.4 x 51 cm, for very good quality (250 dpi) 24.1 x 16.1 inches or 61.1 x 40.8 cm, and for excellent quality (300 dpi) 20.1 x 13.4 inches or 50.9 x 34 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 Z5 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.
The Nikon Z5 has a native sensitivity range from ISO 100 to ISO 51200, which can be extended to ISO 50-102400. The corresponding ISO settings for the Olympus OM-D E-M10 Mark II are ISO 200 to ISO 25600, with the possibility to increase the ISO range to 100-25600.
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. The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.
| DXO |
|1.||Nikon Z5||Full Frame||24.2||6016||4016||4K/30p||..||..||..||..|
|2.||Olympus E-M10 II||Four Thirds||15.9||4608||3456||1080/60p||23.1||12.5||842||73|
|3.||Canon R6||Full Frame||20.0||5472||3648||4k/60p||24.2||14.3||3394||90|
|5.||Nikon Z7 II||Full Frame||45.4||8256||5504||4K/60p||..||..||..||..|
|6.||Nikon Z6 II||Full Frame||24.3||6048||4024||4K/60p||..||..||..||..|
|7.||Nikon Z6||Full Frame||24.3||6048||4024||4K/30p||25.3||14.3||3299||95|
|8.||Nikon Z7||Full Frame||45.4||8256||5504||4K/30p||26.3||14.6||2668||99|
|9.||Olympus E-M10 III||Four Thirds||15.9||4608||3456||4K/30p||..||..||..||..|
|10.||Olympus E-PL8||Four Thirds||15.9||4608||3456||1080/30p||..||..||..||..|
|11.||Olympus E-M10||Four Thirds||15.9||4608||3456||1080/30p||22.8||12.3||884||72|
|12.||Olympus E-P5||Four Thirds||15.9||4608||3456||1080/30p||22.8||12.4||895||72|
|13.||Olympus E-PL5||Four Thirds||15.9||4608||3456||1080/30p||22.8||12.3||889||72|
|14.||Panasonic S5||Full Frame||24.0||6000||4000||4K/60p||..||..||..||..|
|15.||Panasonic S1||Full Frame||24.0||6000||4000||4K/60p||25.2||14.5||3333||95|
|16.||Sony A9 II||Full Frame||24.0||6000||4000||4K/30p||25.0||14.0||3434||93|
|17.||Sony A7R IV||Full Frame||60.2||9504||6336||4K/30p||26.0||14.8||3344||99|
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 Z5 provides a higher video resolution than the E-M10 II. It can shoot video footage at 4K/30p, while the Olympus is limited to 1080/60p.
Apart from body and sensor, cameras can and do differ across a variety of features. The two cameras under consideration are similar with respect to both having an electronic viewfinder. However, the one in the Z5 offers a substantially higher resolution than the one in the E-M10 II (3690k vs 2360k dots). The following table reports on some other key feature differences and similarities of the Nikon Z5, the Olympus E-M10 II, and comparable cameras.
|2.||Olympus E-M10 II||2360||n||3.0||1040||tilting||Y||1/4000s||8.0||Y||Y|
|5.||Nikon Z7 II||3690||Y||3.2||2100||tilting||Y||1/8000s||10.0||n||Y|
|6.||Nikon Z6 II||3690||Y||3.2||2100||tilting||Y||1/8000s||14.0||n||Y|
|9.||Olympus E-M10 III||2360||n||3.0||1040||tilting||Y||1/4000s||8.6||Y||Y|
|16.||Sony A9 II||3686||n||3.0||1440||tilting||Y||1/8000s||10.0||n||Y|
|17.||Sony A7R IV||5760||n||3.0||1440||tilting||Y||1/8000s||10.0||n||Y|
One difference between the cameras concerns the presence of an on-board flash. The E-M10 II has one, while the Z5 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, both cameras under consideration feature an 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 Nikon Z5 and the Olympus E-M10 II 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 Z5 and the E-M10 II write their files to SDXC cards. The Z5 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. The Z5 supports UHS-II cards (on both slots), while the E-M10 II 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 Nikon Z5 and Olympus OM-D E-M10 Mark II and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
| NFC |
|2.||Olympus E-M10 II||Y||stereo||mono||-||-||micro||2.0||Y||-||-|
|5.||Nikon Z7 II||Y||stereo||mono||Y||Y||micro||3.2||Y||-||Y|
|6.||Nikon Z6 II||Y||stereo||mono||Y||Y||micro||3.2||Y||-||Y|
|9.||Olympus E-M10 III||Y||stereo||mono||-||-||micro||2.0||Y||-||-|
|16.||Sony A9 II||Y||stereo||mono||Y||Y||micro||3.1||Y||Y||Y|
|17.||Sony A7R IV||Y||stereo||mono||Y||Y||micro||3.1||Y||Y||Y|
It is notable that the Z5 has a microphone port, which is missing on the E-M10 II. Such an external microphone input can help to substantially improve the quality of audio recordings when a good external microphone is used.
The Z5 is a recent model that features in the current product line-up of Nikon. In contrast, the E-M10 II has been discontinued (but can be found pre-owned on eBay). As a replacement in the same line of cameras, the E-M10 II was succeeded by the Olympus E-M10 III. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Nikon and Olympus websites.
So how do things add up? Is the Nikon Z5 better than the Olympus E-M10 II or vice versa? The listing below highlights the relative strengths of the two models.
Reasons to prefer the Nikon Z5:
- More detail: Offers more megapixels (24.2 vs 15.9MP) with a 26% higher linear resolution.
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- Better image quality: Features a larger and more technologically advanced imaging sensor.
- Richer colors: The sensor size advantage translates into images with better, more accurate colors.
- More dynamic range: Larger sensor captures a wider spectrum of light and dark details.
- Better low-light sensitivity: Larger sensor produces good images even in poorly lit environments.
- Better video: Provides higher definition movie capture (4K/30p vs 1080/60p).
- Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
- Better sound: Can connect to an external microphone for higher quality sound recording.
- Better sound control: Has a headphone port that enables audio monitoring while recording.
- More detailed viewfinder: Has higher resolution electronic viewfinder (3690k vs 2360k dots).
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.80x vs 0.62x).
- Larger screen: Has a bigger rear LCD (3.2" vs 3.0") for image review and settings control.
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
- Longer lasting: Can take more shots (470 versus 320) on a single battery charge.
- Easier travel charging: Can be conveniently charged via its USB port.
- Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
- Faster data transfer: Supports a more advanced USB protocol (3.2 vs 2.0).
- Easier wireless transfer: Supports Bluetooth for image sharing without cables.
- Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
- Faster buffer clearing: Supports a more advanced SD data transfer standard (UHS-II vs UHS-I).
- More modern: Reflects 4 years and 10 months of technical progress since the E-M10 II launch.
Arguments in favor of the Olympus OM-D E-M10 Mark II:
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- Faster burst: Shoots at higher frequency (8 vs 4.5 flaps/sec) to capture the decisive moment.
- More compact: Is smaller (120x83mm vs 134x101mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 285g or 42 percent) and is thus easier to take along.
- Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
- More affordable: Was introduced into a lower priced category (54 percent cheaper at launch).
- More heavily discounted: Has been around for much longer (launched in August 2015).
If the count of relative strengths (bullet points above) is taken as a measure, the Z5 is the clear winner of the match-up (22 : 7 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 Nikon Z5 and the Olympus E-M10 II place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera listing 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 remains incomplete and does no justice, for example, to the way the Z5 or the E-M10 II perform in practice. User reviews that are available, for instance, at amazon can sometimes shed light on these issues, but such feedback is all too often partial, inconsistent, and inaccurate.
This is why hands-on reviews by experts are important. The following table reports the overall ratings of the cameras as published by some of the major camera review sites (amateurphotographer [AP], cameralabs [CL], dpreview [DPR], ephotozine [EPZ], photographyblog [PB]). As can be seen, the professional reviewers agree in many cases on the quality of different cameras, but sometimes their assessments diverge, reinforcing the earlier point that a camera decision is often a very personal choice.
|1.||Nikon Z5||4/5||..||89/100||4.5/5||4/5||Jul 2020||1,399|
|2.||Olympus E-M10 II||4.5/5||+ +||80/100||5/5||5/5||Aug 2015||649|
|3.||Canon R6||5/5||+ +||90/100||4.5/5||5/5||Jul 2020||2,499|
|4.||Fujifilm X-T4||5/5||+ +||..||5/5||5/5||Feb 2020||1,699|
|5.||Nikon Z7 II||4.5/5||..||..||4.5/5||4.5/5||Oct 2020||2,999|
|6.||Nikon Z6 II||4.5/5||..||89/100||4.5/5||4.5/5||Oct 2020||1,999|
|7.||Nikon Z6||5/5||..||..||4.5/5||5/5||Aug 2018||1,999|
|8.||Nikon Z7||5/5||+||89/100||4.5/5||5/5||Aug 2018||3,399|
|9.||Olympus E-M10 III||..||+||80/100||4.5/5||4.5/5||Aug 2017||649|
|10.||Olympus E-PL8||..||..||..||4.5/5||4/5||Sep 2016||549|
|11.||Olympus E-M10||4/5||..||80/100||5/5||5/5||Jan 2014||699|
|12.||Olympus E-P5||5/5||+ +||78/100||4.5/5||5/5||May 2013||999|
|13.||Olympus E-PL5||3/5||+ +||..||4.5/5||4.5/5||Sep 2012||599|
|14.||Panasonic S5||4.5/5||+ +||..||4.5/5||4.5/5||Sep 2020||1,999|
|15.||Panasonic S1||4.5/5||+ +||88/100||4.5/5||4/5||Feb 2019||2,499|
|16.||Sony A9 II||..||..||90/100||5/5||5/5||Oct 2019||4,499|
|17.||Sony A7R IV||5/5||+||91/100||4.5/5||5/5||Jul 2019||3,499|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
Care should be taken when interpreting the review scores above, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. 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. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.
Specifications: Nikon Z5 vs Olympus E-M10 II
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||Nikon Z5||Olympus E-M10 II|
|Camera Type||Mirrorless system camera||Mirrorless system camera|
|Camera Lens||Nikon Z mount lenses||Micro Four Thirds lenses|
|Launch Date||July 2020||August 2015|
|Launch Price||USD 1,399||USD 649|
|Sensor Specs||Nikon Z5||Olympus E-M10 II|
|Sensor Format||Full Frame Sensor||Four Thirds Sensor|
|Sensor Size||35.9 x 23.9 mm||17.3 x 13.0 mm|
|Sensor Area||858.01 mm2||224.9 mm2|
|Sensor Diagonal||43.1 mm||21.6 mm|
|Sensor Resolution||24.2 Megapixels||15.9 Megapixels|
|Image Resolution||6016 x 4016 pixels||4608 x 3456 pixels|
|Pixel Pitch||5.95 μm||3.76 μm|
|Pixel Density||2.82 MP/cm2||7.08 MP/cm2|
|Moiré control||Anti-Alias filter||no AA filter|
|Movie Capability||4K/30p Video||1080/60p Video|
|ISO Setting||100 - 51,200 ISO||200 - 25,600 ISO|
|ISO Boost||50 - 102,400 ISO||100 - 25,600 ISO|
|Image Processor||EXPEED 6||TruePic VII|
|DXO Sensor Quality (score)||..||73|
|DXO Color Depth (bits)||..||23.1|
|DXO Dynamic Range (EV)||..||12.5|
|DXO Low Light (ISO)||..||842|
|Screen Specs||Nikon Z5||Olympus E-M10 II|
|Viewfinder Type||Electronic viewfinder||Electronic viewfinder|
|Viewfinder Field of View||100%||100%|
|Viewfinder Resolution||3690k dots||2360k dots|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.2inch||3.0inch|
|LCD Resolution||1040k dots||1040k dots|
|LCD Attachment||Tilting screen||Tilting screen|
|Shooting Specs||Nikon Z5||Olympus E-M10 II|
|Focus System||On-Sensor Phase-detect||Contrast-detect AF|
|Manual Focusing Aid||Focus Peaking||Focus Peaking|
|Max Shutter Speed (mechanical)||1/8000s||1/4000s|
|Continuous Shooting||4.5 shutter flaps/s||8 shutter flaps/s|
|Electronic Shutter||up to 1/8000s||up to 1/16000s|
|Time-Lapse Photography||Intervalometer built-in||Intervalometer built-in|
|Image Stabilization||In-body stabilization||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||Dual UHS-II||UHS-I|
|Connectivity Specs||Nikon Z5||Olympus E-M10 II|
|USB Connector||USB 3.2||USB 2.0|
|HDMI Port||micro HDMI||micro HDMI|
|Microphone Port||External MIC port||no MIC socket|
|Headphone Socket||Headphone port||no Headphone port|
|Wifi Support||Wifi built-in||Wifi built-in|
|Bluetooth Support||Bluetooth built-in||no Bluetooth|
|Body Specs||Nikon Z5||Olympus E-M10 II|
|Environmental Sealing||Weathersealed body||not weather sealed|
|Battery Life (CIPA)||470 shots per charge||320 shots per charge|
|In-Camera Charging||USB charging||no USB charging|
134 x 101 x 67 mm
(5.3 x 4.0 x 2.6 in)
120 x 83 x 47 mm
(4.7 x 3.3 x 1.9 in)
|Camera Weight||675 g (23.8 oz)||390 g (13.8 oz)|
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