Nikon D800 vs Olympus E-M10 III
The Nikon D800 and the Olympus OM-D E-M10 Mark III are two digital cameras that were officially introduced, respectively, in February 2012 and August 2017. The D800 is a DSLR, while the E-M10 III is a mirrorless interchangeable lens camera. The cameras are based on a full frame (D800) and a Four Thirds (E-M10 III) sensor. The Nikon has a resolution of 36.2 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 D800 and the Olympus OM-D E-M10 Mark III? 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 D800 and the Olympus E-M10 III. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All width, height and depth measures are rounded to the nearest millimeter.
The E-M10 III can be obtained in two different colors (black, silver), while the D800 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 III is considerably smaller (43 percent) than the Nikon D800. Moreover, the E-M10 III is substantially lighter (59 percent) than the D800. It is worth mentioning in this context that the D800 is splash and dust resistant, while the E-M10 III 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. A larger imaging sensor will tend to go along with bigger and heavier lenses, although exceptions exist. You can compare the optics available for the two cameras in the Nikon Lens Catalog (D800) and the Micro Four Thirds Lens Catalog (E-M10 III). Mirrorless cameras, such as the E-M10 III, have moreover the advantage that they can use many lenses from other systems via adapters, as they have a relatively short flange to focal plane distance.
The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. 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.
|Nikon D800||5.7 in||4.8 in||3.2 in||35.3 oz||900||Y||Feb 2012||2,999|
|Olympus E-M10 III||4.8 in||3.3 in||2.0 in||14.5 oz||330||n||Aug 2017||649|
|Canon 5D Mark IV||5.9 in||4.6 in||3.0 in||31.4 oz||900||Y||Aug 2016||3,499|
|Canon 5D Mark III||6.0 in||4.6 in||3.0 in||33.5 oz||950||Y||Mar 2012||3,499|
|Nikon D850||5.7 in||4.9 in||3.1 in||35.5 oz||1840||Y||Jul 2017||3,299|
|Nikon D810||5.7 in||4.8 in||3.2 in||34.6 oz||1200||Y||Jun 2014||3,299|
|Nikon Df||5.7 in||4.3 in||2.6 in||26.8 oz||1400||Y||Nov 2013||2,749|
|Nikon D610||5.6 in||4.4 in||3.2 in||30.0 oz||900||Y||Oct 2013||1,999|
|Nikon D4||6.3 in||6.2 in||3.6 in||47.3 oz||2600||Y||Jan 2012||5,999|
|Nikon D600||5.6 in||4.4 in||3.2 in||30.0 oz||900||Y||Sep 2012||2,099|
|Nikon D800E||5.7 in||4.8 in||3.2 in||35.3 oz||900||Y||Feb 2012||3,299|
|Nikon D700||5.8 in||4.8 in||3.0 in||37.9 oz||1000||Y||Jul 2008||2,999|
|Olympus E-M10 IV||4.8 in||3.3 in||1.9 in||13.5 oz||360||n||Aug 2020||699|
|Olympus E-PL10||4.6 in||2.7 in||1.5 in||13.4 oz||350||n||Oct 2019||599|
|Olympus E-PL9||4.6 in||2.7 in||1.5 in||13.4 oz||350||n||Feb 2018||599|
|Olympus E-PL8||4.5 in||2.6 in||1.5 in||12.6 oz||350||n||Sep 2016||549|
|Olympus E-M10 II||4.7 in||3.3 in||1.9 in||13.8 oz||320||n||Aug 2015||649|
|Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.|
Any camera decision will obviously take relative prices into account. 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 III was launched at a markedly lower price (by 78 percent) than the D800, 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.
The size of the sensor inside a digital camera is one of the key determinants 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Nikon D800 features a full frame sensor and the Olympus E-M10 III a Four Thirds sensor. The sensor area in the E-M10 III 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 D800 has a native 3:2 aspect ratio, while the one in the E-M10 III offers a 4:3 aspect.
Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors.
With 36.2MP, the D800 offers a higher resolution than the E-M10 III (15.9MP), but the D800 nevertheless has larger individual pixels (pixel pitch of 4.88μm versus 3.76μm for the E-M10 III) due to its larger sensor. However, the E-M10 III is a much more recent model (by 5 years and 6 months) than the D800, 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 III has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
The resolution advantage of the Nikon D800 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the D800 for good quality output (200 dots per inch) amounts to 36.8 x 24.6 inches or 93.5 x 62.4 cm, for very good quality (250 dpi) 29.4 x 19.6 inches or 74.8 x 49.9 cm, and for excellent quality (300 dpi) 24.5 x 16.4 inches or 62.3 x 41.6 cm. The corresponding values for the Olympus E-M10 III 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 Nikon D800 has a native sensitivity range from ISO 100 to ISO 6400, which can be extended to ISO 50-25600. The corresponding ISO settings for the Olympus OM-D E-M10 Mark III 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 is based on lab testing and assigns an overall score to each camera sensor, as well as ratings for dynamic range ("DXO Landscape"), color depth ("DXO Portrait"), and low-light sensitivity ("DXO Sports"). 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 |
|Nikon D800||Full Frame||36.2||7360||4912||1080/30p||25.3||14.4||2853||95|
|Olympus E-M10 III||Four Thirds||15.9||4608||3456||4K/30p||..||..||..||..|
|Canon 5D Mark IV||Full Frame||30.1||6720||4480||4K/30p||24.8||13.6||2995||91|
|Canon 5D Mark III||Full Frame||22.1||5760||3840||1080/30p||24.0||11.7||2293||81|
|Nikon D850||Full Frame||45.4||8256||5504||4K/30p||26.4||14.8||2660||100|
|Nikon D810||Full Frame||36.2||7360||4912||1080/60p||25.7||14.8||2853||97|
|Nikon Df||Full Frame||16.2||4928||3280||none||24.6||13.1||3279||89|
|Nikon D610||Full Frame||24.2||6016||4016||1080/30p||25.1||14.4||2925||94|
|Nikon D4||Full Frame||16.2||4928||3280||1080/30p||24.7||13.1||2965||89|
|Nikon D600||Full Frame||24.2||6016||4016||1080/30p||25.1||14.2||2980||94|
|Nikon D800E||Full Frame||36.2||7360||4912||1080/30p||25.6||14.3||2979||96|
|Nikon D700||Full Frame||12.1||4256||2832||none||23.5||12.2||2303||80|
|Olympus E-M10 IV||Four Thirds||20.2||5184||3888||4K/30p||..||..||..||..|
|Olympus E-PL10||Four Thirds||15.9||4608||3456||4K/30p||..||..||..||..|
|Olympus E-PL9||Four Thirds||15.9||4608||3456||4K/30p||..||..||..||..|
|Olympus E-PL8||Four Thirds||15.9||4608||3456||1080/30p||..||..||..||..|
|Olympus E-M10 II||Four Thirds||15.9||4608||3456||1080/60p||23.1||12.5||842||73|
Many modern cameras cannot only take still pictures, but also record videos. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the E-M10 III provides a better video resolution than the D800. It can shoot movie footage at 4K/30p, while the Nikon is limited to 1080/30p.
Apart from body and sensor, cameras can and do differ across a range of features. For example, the E-M10 III has an electronic viewfinder (2360k dots), while the D800 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 viewfinders of both cameras offer the same field of view (100%), but the viewfinder of the D800 has a higher magnification than the one of the E-M10 III (0.70x vs 0.62x), 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 Nikon D800, the Olympus E-M10 III, and comparable cameras.
|Olympus E-M10 III||2360||n||3.0||1040||tilting||Y||1/4000s||8.6||Y||Y|
|Canon 5D Mark IV||optical||Y||3.2||1620||fixed||Y||1/8000s||7.0||n||n|
|Canon 5D Mark III||optical||Y||3.2||1040||fixed||n||1/8000s||6.0||n||n|
|Olympus E-M10 IV||2360||n||3.0||1040||tilting||Y||1/4000s||15.0||Y||Y|
|Olympus E-M10 II||2360||n||3.0||1040||tilting||Y||1/4000s||8.0||Y||Y|
One feature that is present on the D800, but is missing on the E-M10 III is a top-level LCD. While being, of course, smaller than the rear screen, the control panel conveys some of the essential shooting information and can be convenient for quick and easy settings verification.
The 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 III 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 Nikon D800 and the Olympus E-M10 III 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.
The D800 writes its imaging data to Compact Flash or SDXC cards, while the E-M10 III uses SDXC cards. The D800 features dual card slots, which can be very useful in case a memory card fails. In contrast, the E-M10 III only has one slot. The E-M10 III supports UHS-II cards (Ultra High Speed data transfer of up to 312 MB/s), while the D800 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 Nikon D800 and Olympus OM-D E-M10 Mark III and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
| NFC |
|Olympus E-M10 III||Y||stereo||mono||-||-||micro||2.0||Y||-||-|
|Canon 5D Mark IV||Y||mono||mono||Y||Y||mini||3.0||Y||Y||-|
|Canon 5D Mark III||Y||mono||mono||Y||Y||mini||2.0||-||-||-|
|Olympus E-M10 IV||Y||stereo||mono||-||-||micro||2.0||Y||-||Y|
|Olympus E-M10 II||Y||stereo||mono||-||-||micro||2.0||Y||-||-|
It is notable that the D800 has a microphone port, which is missing on the E-M10 III. Such an external microphone input can help to substantially improve the quality of audio recordings when a good external microphone is used.
Studio photographers will appreciate that the Nikon D800 (unlike the E-M10 III) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
Both the D800 and the E-M10 III have been discontinued, but can regularly be found used on eBay. The D800 was replaced by the Nikon D810, while the E-M10 III was followed by the Olympus E-M10 IV. 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 what conclusions can be drawn? Is there a clear favorite between the Nikon D800 and the Olympus E-M10 III? Which camera is better? The listing below highlights the relative strengths of the two models.
Arguments in favor of the Nikon D800:
- More detail: Offers more megapixels (36.2 vs 15.9MP) with a 54% higher linear resolution.
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- 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.
- Brighter framing: Features an optical viewfinder for clear, lag-free composition.
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.70x vs 0.62x).
- Easier setting verification: Features an LCD display on top to control shooting parameters.
- Larger screen: Has a bigger rear LCD (3.2" vs 3.0") for image review and settings control.
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
- Longer lasting: Can take more shots (900 versus 330) on a single battery charge.
- Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
- Faster data transfer: Supports a more advanced USB protocol (3.0 vs 2.0).
- Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
- Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
- More heavily discounted: Has been available for much longer (launched in February 2012).
Reasons to prefer the Olympus OM-D E-M10 Mark III:
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- Better video: Provides higher definition movie capture (4K/30p vs 1080/30p).
- More framing info: Has an electronic viewfinder that displays shooting data.
- More detailed LCD: Has a higher resolution rear screen (1040k vs 921k dots).
- More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
- Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
- Faster burst: Shoots at higher frequency (8.6 vs 4 flaps/sec) to capture the decisive moment.
- Less disturbing: Has an electronic shutter option for completely silent shooting.
- More compact: Is smaller (122x84mm vs 146x123mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 590g or 59 percent) and is thus easier to take along.
- Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
- More legacy lens friendly: Can use many non-native lenses via adapters.
- Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
- 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 (78 percent cheaper at launch).
- More modern: Reflects 5 years and 6 months of technical progress since the D800 launch.
If the count of relative strengths (bullet points above) is taken as a measure, the E-M10 III comes out slightly ahead of the D800 (16 : 15 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 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 D800 and the Olympus E-M10 III place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Mirrorless Interchangeable Lens Camera listings whether the two cameras rank among the cream of the crop.
In any case, while the specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it says little about, for example, the shooting experience and imaging performance of the D800 and the E-M10 III in practical situations. 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 adjacent summary-table relays the overall verdicts of several of the most popular camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, and photographyblog). As can be seen, the professional reviewers agree in many cases on the quality of different cameras, but sometimes their assessments diverge, reinforcing the earlier point that a camera decision is often a very personal choice.
|Nikon D800||+ +||82/100||5/5||5/5||5/5||Feb 2012||2,999|
|Olympus E-M10 III||+||80/100||4.5/5||4/5||4.5/5||Aug 2017||649|
|Canon 5D Mark IV||+ +||87/100||4.5/5||5/5||4.5/5||Aug 2016||3,499|
|Canon 5D Mark III||+ +||82/100||4.5/5||5/5||4.5/5||Mar 2012||3,499|
|Nikon D850||+ +||89/100||4.5/5||5/5||5/5||Jul 2017||3,299|
|Nikon D810||..||86/100||5/5||4.5/5||4.5/5||Jun 2014||3,299|
|Nikon Df||..||81/100||4/5||4/5||4/5||Nov 2013||2,749|
|Nikon D610||+ +||87/100||4.5/5||4.5/5||4.5/5||Oct 2013||1,999|
|Nikon D4||..||..||4.5/5||..||4.5/5||Jan 2012||5,999|
|Nikon D600||+ +||87/100||5/5||4.5/5||4.5/5||Sep 2012||2,099|
|Nikon D800E||..||84/100||5/5||4.5/5||5/5||Feb 2012||3,299|
|Nikon D700||89/100||+ +||4.5/5||5/5||4.5/5||Jul 2008||2,999|
|Olympus E-M10 IV||..||..||4.5/5||..||4.5/5||Aug 2020||699|
|Olympus E-PL10||..||77/100||..||..||4/5||Oct 2019||599|
|Olympus E-PL9||+||..||4.5/5||4.5/5||4/5||Feb 2018||599|
|Olympus E-PL8||..||..||4.5/5||..||4/5||Sep 2016||549|
|Olympus E-M10 II||+ +||80/100||5/5||5/5||5/5||Aug 2015||649|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
Care should be taken when interpreting the review scores above, though. The ratings are only valid when referring to cameras in the same category and of the same age. 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. 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? In case you would like to check on the differences and similarities of other camera models, just use the search menu below. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.
Specifications: Nikon D800 vs Olympus E-M10 III
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 D800||Olympus E-M10 III|
|Camera Type||Digital single lens reflex||Mirrorless system camera|
|Camera Lens||Nikon F mount lenses||Micro Four Thirds lenses|
|Launch Date||February 2012||August 2017|
|Launch Price||USD 2,999||USD 649|
|Sensor Specs||Nikon D800||Olympus E-M10 III|
|Sensor Format||Full Frame Sensor||Four Thirds Sensor|
|Sensor Size||35.9 x 24.0 mm||17.3 x 13.0 mm|
|Sensor Area||861.6 mm2||224.9 mm2|
|Sensor Diagonal||43.2 mm||21.6 mm|
|Sensor Resolution||36.2 Megapixels||15.9 Megapixels|
|Image Resolution||7360 x 4912 pixels||4608 x 3456 pixels|
|Pixel Pitch||4.88 μm||3.76 μm|
|Pixel Density||4.20 MP/cm2||7.08 MP/cm2|
|Moiré control||Anti-Alias filter||no AA filter|
|Movie Capability||1080/30p Video||4K/30p Video|
|ISO Setting||100 - 6,400 ISO||200 - 25,600 ISO|
|ISO Boost||50 - 25,600 ISO||100 - 25,600 ISO|
|Image Processor||EXPEED 3||TruePic VIII|
|DXO Sensor Quality (score)||95||..|
|DXO Color Depth (bits)||25.3||..|
|DXO Dynamic Range (EV)||14.4||..|
|DXO Low Light (ISO)||2853||..|
|Screen Specs||Nikon D800||Olympus E-M10 III|
|Viewfinder Type||Optical viewfinder||Electronic viewfinder|
|Viewfinder Field of View||100%||100%|
|Viewfinder Resolution||2360k dots|
|Top-Level Screen||Control Panel||no Top Display|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.2inch||3.0inch|
|LCD Resolution||921k dots||1040k dots|
|LCD Attachment||Fixed screen||Tilting screen|
|Touch Input||no Touchscreen||Touchscreen|
|Shooting Specs||Nikon D800||Olympus E-M10 III|
|Focus System||Phase-detect AF||Contrast-detect AF|
|Manual Focusing Aid||no Peaking Feature||Focus Peaking|
|Max Shutter Speed (mechanical)||1/8000s||1/4000s|
|Continuous Shooting||4 shutter flaps/s||8.6 shutter flaps/s|
|Electronic Shutter||no E-Shutter||up to 1/16000s|
|Time-Lapse Photography||Intervalometer built-in||Intervalometer built-in|
|Image Stabilization||Lens stabilization only||In-body stabilization|
|Fill Flash||Build-in Flash||Build-in Flash|
|Storage Medium||CF or SDXC cards||SDXC cards|
|Second Storage Option||Dual card slots||Single card slot|
|UHS card support||UHS-I||UHS-II|
|Connectivity Specs||Nikon D800||Olympus E-M10 III|
|Studio Flash||PC Sync socket||no PC Sync|
|USB Connector||USB 3.0||USB 2.0|
|HDMI Port||mini HDMI||micro HDMI|
|Microphone Port||External MIC port||no MIC socket|
|Headphone Socket||Headphone port||no Headphone port|
|Wifi Support||no Wifi||Wifi built-in|
|Body Specs||Nikon D800||Olympus E-M10 III|
|Environmental Sealing||Weathersealed body||not weather sealed|
|Battery Life (CIPA)||900 shots per charge||330 shots per charge|
146 x 123 x 82 mm
(5.7 x 4.8 x 3.2 in)
122 x 84 x 50 mm
(4.8 x 3.3 x 2.0 in)
|Camera Weight||1000 g (35.3 oz)||410 g (14.5 oz)|
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