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Nikon D810 vs Olympus E-M10

The Nikon D810 and the Olympus OM-D E-M10 are two digital cameras that were officially introduced, respectively, in June 2014 and January 2014. The D810 is a DSLR, while the E-M10 is a mirrorless interchangeable lens camera. The cameras are based on a full frame (D810) and a Four Thirds (E-M10) 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.

Headline Specifications
Nikon D810
versus
Olympus E-M10
Nikon D810   Olympus E-M10
Digital single lens reflex Mirrorless system camera
Nikon F mount lenses Micro Four Thirds lenses
36.2 MP – Full Frame sensor 15.9 MP – Four Thirds sensor
1080/60p Video 1080/30p Video
ISO 64-12,800 (32 - 51,200) ISO 200-25,600
Optical viewfinder Electronic viewfinder (1440k dots)
3.2" LCD – 1229k dots 3.0" LCD – 1037k dots
Fixed screen (not touch-sensitive) Tilting touchscreen
5 shutter flaps per second 8 shutter flaps per second
Lens stabilization onlyIn-body stabilization
Weathersealed bodynot weather sealed
1200 shots per battery charge320 shots per battery charge
146 x 123 x 82 mm, 980 g 119 x 82 x 46 mm, 396 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon D810 and the Olympus OM-D E-M10? 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.

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Body comparison

The side-by-side display below illustrates the physical size and weight of the Nikon D810 and the Olympus E-M10. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All width, height and depth dimensions are rounded to the nearest millimeter.

The E-M10 can be obtained in two different colors (black, silver), while the D810 is only available in black.

Size Nikon D810 vs Olympus E-M10
Compare D810 versus E-M10 top
Comparison D810 or E-M10 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Olympus E-M10 is considerably smaller (46 percent) than the Nikon D810. Moreover, the E-M10 is substantially lighter (60 percent) than the D810. It is worth mentioning in this context that the D810 is splash and dust resistant, while the E-M10 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 (D810) and the Micro Four Thirds Lens Catalog (E-M10). Mirrorless cameras, such as the E-M10, 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.

Concerning battery life, the D810 gets 1200 shots out of its Nikon EN-EL15 battery, while the E-M10 can take 320 images on a single charge of its Olympus BLS-5 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.

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Body Specifications
  empty Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Nikon D810 146 mm 123 mm 82 mm 980 g 1200 Y Jun 2014 3,299ebay.com
2.
 
Olympus E-M10 119 mm 82 mm 46 mm 396 g 320 n Jan 2014 699ebay.com
3.
 
Canon 5DS 152 mm 116 mm 76 mm 930 g 700 Y Feb 2015 3,699ebay.com
4.
 
Nikon D4S 160 mm 157 mm 91 mm 1350 g 3020 Y Feb 2014 6,499ebay.com
5.
 
Nikon D600 141 mm 113 mm 82 mm 850 g 900 Y Sep 2012 2,099ebay.com
6.
 
Nikon D610 141 mm 113 mm 82 mm 850 g 900 Y Oct 2013 1,999ebay.com
7.
 
Nikon D700 147 mm 123 mm 77 mm 1074 g 1000 Y Jul 2008 2,999ebay.com
8.
 
Nikon D750 141 mm 113 mm 78 mm 750 g 1230 Y Sep 2014 2,299ebay.com
9.
 
Nikon D800 146 mm 123 mm 82 mm 1000 g 900 Y Feb 2012 2,999ebay.com
10.
 
Nikon D800E 146 mm 123 mm 82 mm 1000 g 900 Y Feb 2012 3,299ebay.com
11.
 
Nikon D850 146 mm 124 mm 79 mm 1005 g 1840 Y Jul 2017 3,299 amazon.com
12.
 
Nikon Df 144 mm 110 mm 67 mm 760 g 1400 Y Nov 2013 2,749ebay.com
13.
 
Olympus E-M10 II 120 mm 83 mm 47 mm 390 g 320 n Aug 2015 649ebay.com
14.
 
Olympus E-P5 122 mm 69 mm 37 mm 420 g 330 n May 2013 999ebay.com
15.
 
Olympus E-PL7 115 mm 67 mm 38 mm 357 g 350 n Aug 2014 599ebay.com
16.
 
Panasonic G6 122 mm 85 mm 71 mm 390 g 340 n Apr 2013 599ebay.com
17.
 
Panasonic GX7 123 mm 71 mm 55 mm 402 g 350 n Aug 2013 999ebay.com
Note: 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 listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The E-M10 was launched at a markedly lower price (by 79 percent) than the D810, 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.

Sensor comparison

The size of the imaging sensor is a crucial determinant 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. 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 more expensive and lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Nikon D810 features a full frame sensor and the Olympus E-M10 a Four Thirds sensor. The sensor area in the E-M10 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 D810 has a native 3:2 aspect ratio, while the one in the E-M10 offers a 4:3 aspect.

Nikon D810 and Olympus E-M10 sensor measures

With 36.2MP, the D810 offers a higher resolution than the E-M10 (15.9MP), but the D810 nevertheless has larger individual pixels (pixel pitch of 4.88μm versus 3.76μm for the E-M10) due to its larger sensor. Moreover, the D810 is a somewhat more recent model (by 4 months) than the E-M10, and its sensor might 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 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 Nikon D810 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the D810 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 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 D810 has a native sensitivity range from ISO 64 to ISO 12800, which can be extended to ISO 32-51200. The corresponding ISO settings for the Olympus OM-D E-M10 are ISO 200 to ISO 25600, with the possibility to increase the ISO range to 100-25600.

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.

D810 versus E-M10 MP

Consistent information on actual sensor performance is available from DXO Mark for many cameras. This service determines an overall sensor rating, as well as sub-scores for low-light sensitivity ("DXO Sports"), dynamic range ("DXO Landscape"), and color depth ("DXO Portrait"). Of the two cameras under review, the D810 provides substantially higher image quality than the E-M10, with an overall score that is 25 points higher. This advantage is based on 2.9 bits higher color depth, 2.5 EV in additional dynamic range, and 1.7 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.

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Sensor Characteristics
  empty Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Nikon D810 Full Frame 36.2 7360 49121080/60p25.714.8285397
2.
 
Olympus E-M10 Four Thirds 15.9 4608 34561080/30p22.812.388472
3.
 
Canon 5DS Full Frame 50.3 8688 57921080/30p24.712.4238187
4.
 
Nikon D4S Full Frame 16.2 4928 32801080/60p24.413.3307489
5.
 
Nikon D600 Full Frame 24.2 6016 40161080/30p25.114.2298094
6.
 
Nikon D610 Full Frame 24.2 6016 40161080/30p25.114.4292594
7.
 
Nikon D700 Full Frame 12.1 4256 2832none23.512.2230380
8.
 
Nikon D750 Full Frame 24.2 6016 40161080/60p24.814.5295693
9.
 
Nikon D800 Full Frame 36.2 7360 49121080/30p25.314.4285395
10.
 
Nikon D800E Full Frame 36.2 7360 49121080/30p25.614.3297996
11.
 
Nikon D850 Full Frame 45.4 8256 55044K/30p26.414.82660100
12.
 
Nikon Df Full Frame 16.2 4928 3280none24.613.1327989
13.
 
Olympus E-M10 II Four Thirds 15.9 4608 34561080/60p23.112.584273
14.
 
Olympus E-P5 Four Thirds 15.9 4608 34561080/30p22.812.489572
15.
 
Olympus E-PL7 Four Thirds 15.9 4608 34561080/30p22.712.487372
16.
 
Panasonic G6 Four Thirds 15.9 4608 34561080/60p21.311.563961
17.
 
Panasonic GX7 Four Thirds 15.8 4592 34481080/60p22.612.271870

Many modern cameras are not only capable of taking still images, but also of capturing video footage. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the D810 provides a higher frame rate than the E-M10. It can shoot video footage at 1080/60p, while the Olympus is limited to 1080/30p.

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Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the E-M10 has an electronic viewfinder (1440k dots), while the D810 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 D810 has a higher magnification than the one of the E-M10 (0.70x vs 0.58x), 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 D810, the Olympus E-M10, and comparable cameras.

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Core Features
  empty 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.
 
Nikon D810optical Y3.2 / 1229 fixed n 1/8000s 5.0/s Y n
2.
 
Olympus E-M101440 n3.0 / 1037 tilting Y 1/4000s 8.0/s Y Y
3.
 
Canon 5DSoptical Y3.2 / 1040 fixed n 1/8000s 5.0/s n n
4.
 
Nikon D4Soptical Y3.2 / 921 fixed n 1/8000s 11.0/s n n
5.
 
Nikon D600optical Y3.0 / 921 fixed n 1/4000s 5.5/s Y n
6.
 
Nikon D610optical Y3.2 / 921 fixed n 1/4000s 6.0/s Y n
7.
 
Nikon D700optical Y3.0 / 922 fixed n 1/8000s 8.0/s Y n
8.
 
Nikon D750optical Y3.2 / 1229 tilting n 1/4000s 6.0/s Y n
9.
 
Nikon D800optical Y3.2 / 921 fixed n 1/8000s 4.0/s Y n
10.
 
Nikon D800Eoptical Y3.2 / 921 fixed n 1/8000s 4.0/s Y n
11.
 
Nikon D850optical Y3.2 / 2359 tilting Y 1/8000s 9.0/s n n
12.
 
Nikon Dfoptical Y3.2 / 921 fixed n 1/4000s 5.5/s n n
13.
 
Olympus E-M10 II2360 n3.0 / 1040 tilting Y 1/4000s 8.0/s Y Y
14.
 
Olympus E-P5optional n3.0 / 1037 tilting Y 1/8000s 9.0/s Y Y
15.
 
Olympus E-PL7optional n3.0 / 1037 tilting Y 1/4000s 8.0/s n Y
16.
 
Panasonic G61440 n3.0 / 1036 swivel Y 1/4000s 7.0/s Y n
17.
 
Panasonic GX72760 n3.0 / 1040 tilting Y 1/8000s 5.0/s Y Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One feature that is present on the D810, but is missing on the E-M10 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 Nikon D810 and the Olympus E-M10 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 D810 writes its imaging data to Compact Flash or SDXC cards, while the E-M10 uses SDXC cards. The D810 features dual card slots, which can be very useful in case a memory card fails. In contrast, the E-M10 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.

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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 Nikon D810 and Olympus OM-D E-M10 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
  empty Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Nikon D810Ystereo / monoYYmini3.0Y--
2.
 
Olympus E-M10Ystereo / mono--micro2.0Y--
3.
 
Canon 5DSYmono / monoY-mini3.0---
4.
 
Nikon D4SYmono / monoYYmini2.0---
5.
 
Nikon D600Ymono / monoYYmini2.0---
6.
 
Nikon D610Ymono / monoYYmini2.0---
7.
 
Nikon D700Y- / ---mini2.0---
8.
 
Nikon D750Ystereo / monoYYmini2.0Y--
9.
 
Nikon D800Ymono / monoYYmini3.0---
10.
 
Nikon D800EYmono / monoYYmini3.0---
11.
 
Nikon D850Ystereo / monoYYmini3.0YYY
12.
 
Nikon DfY- / ---mini2.0---
13.
 
Olympus E-M10 IIYstereo / mono--micro2.0Y--
14.
 
Olympus E-P5Ystereo / mono--micro2.0Y--
15.
 
Olympus E-PL7Ystereo / mono--micro2.0Y--
16.
 
Panasonic G6Ystereo / monoY-mini2.0YY-
17.
 
Panasonic GX7Ystereo / mono--mini2.0YY-

It is notable that the D810 has a microphone port, which is missing on the E-M10. 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 D810 (unlike the E-M10) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the D810 and the E-M10 have been discontinued, but can regularly be found used on ebay. The E-M10 was replaced by the Olympus E-M10 II, while the D810 was followed by the Nikon D850. Further information on the features and operation of the D810 and E-M10 can be found, respectively, in the Nikon D810 Manual (free pdf) or the online Olympus E-M10 Manual.

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Review summary

So what conclusions can be drawn? Which of the two cameras – the Nikon D810 or the Olympus E-M10 – has the upper hand? Is one clearly better than the other? Below is a summary of the relative strengths of each of the two contestants.

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Reasons to prefer the Nikon D810:

  • More detail: Offers more megapixels (36.2 vs 15.9MP) with a 54% higher linear resolution.
  • Better image quality: Scores substantially higher (25 points) in the DXO overall assessment.
  • Richer colors: Generates images with noticeably better colors (2.9 bits more color depth).
  • More dynamic range: Captures a larger spectrum of light and dark details (2.5 EV of extra DR).
  • Better low-light sensitivity: Requires less light for good images (1.7 stops ISO advantage).
  • Better video: Provides higher movie framerates (1080/60p versus 1080/30p).
  • 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 0.58x).
  • 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.
  • More detailed LCD: Has a higher resolution rear screen (1229k vs 1037k dots).
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • Longer lasting: Can take more shots (1200 versus 320) 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 modern: Is somewhat more recent (announced 4 months after the E-M10).

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Arguments in favor of the Olympus OM-D E-M10:

  • More framing info: Has an electronic viewfinder that displays shooting data.
  • 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 vs 5 flaps/sec) to capture the decisive moment.
  • More compact: Is smaller (119x82mm vs 146x123mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 584g or 60 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.
  • More affordable: Was introduced into a lower priced category (79 percent cheaper at launch).
  • More heavily discounted: Has been on the market for longer (launched in January 2014).

If the number of relative strengths (bullet points above) is taken as a guide, the D810 is the clear winner of the match-up (20 : 10 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.

D810 20:10 E-M10

How about other alternatives? Do the specifications of the Nikon D810 and the Olympus E-M10 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 remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the D810 or the E-M10. At times, user reviews, such as those published at amazon, address these issues in a useful manner, but such feedback is on many occasions incomplete, inconsistent, and unreliable.

Expert reviews

This is why expert reviews are important. The table below provides a synthesis of the camera assessments of some of the best known photo-gear 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.

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Expert Camera Reviews
  empty  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Nikon D8105/5..5/586/1005/54.5/5 Jun 2014 3,299ebay.com
2.
 
Olympus E-M104/5....80/1005/55/5 Jan 2014 699ebay.com
3.
 
Canon 5DS..+..83/1004.5/54.5/5 Feb 2015 3,699ebay.com
4.
 
Nikon D4S5/5......4.5/54.5/5 Feb 2014 6,499ebay.com
5.
 
Nikon D6004/5+ +..87/1005/54.5/5 Sep 2012 2,099ebay.com
6.
 
Nikon D6104/5+ +..87/1004.5/54.5/5 Oct 2013 1,999ebay.com
7.
 
Nikon D700..89/100..+ +4.5/54.5/5 Jul 2008 2,999ebay.com
8.
 
Nikon D7505/5+ +4/590/1004.5/54.5/5 Sep 2014 2,299ebay.com
9.
 
Nikon D8005/5+ +..82/1005/55/5 Feb 2012 2,999ebay.com
10.
 
Nikon D800E......84/1005/55/5 Feb 2012 3,299ebay.com
11.
 
Nikon D8504.5/5+ +5/589/1004.5/55/5 Jul 2017 3,299 amazon.com
12.
 
Nikon Df4/5....81/1004/54/5 Nov 2013 2,749ebay.com
13.
 
Olympus E-M10 II4.5/5+ +..80/1005/55/5 Aug 2015 649ebay.com
14.
 
Olympus E-P55/5+ +..78/1004.5/55/5 May 2013 999ebay.com
15.
 
Olympus E-PL74/5+....5/54/5 Aug 2014 599ebay.com
16.
 
Panasonic G64/5+ +....5/54.5/5 Apr 2013 599ebay.com
17.
 
Panasonic GX74/5+..79/1005/55/5 Aug 2013 999ebay.com
Note: (+ +) 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. Hence, a score should always be seen in the context of the camera's market launch date and its price, 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.

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Other camera comparisons

Did this review help to inform your camera decision process? In case you are interested in seeing how other cameras pair up, just make a corresponding selection in the search boxes below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Nikon D810 vs Olympus E-M10

    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 Specifications
    Camera Model Nikon D810 Olympus E-M10
    Camera Type Digital single lens reflex Mirrorless system camera
    Camera Lens Nikon F mount lenses Micro Four Thirds lenses
    Launch Date June 2014 January 2014
    Launch Price USD 3,299 USD 699
    Sensor Specs Nikon D810 Olympus E-M10
    Sensor Technology CMOS CMOS
    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
    Crop Factor 1.0x 2.0x
    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 no AA filter no AA filter
    Movie Capability 1080/60p Video 1080/30p Video
    ISO Setting 64 - 12,800 ISO 200 - 25,600 ISO
    ISO Boost 32 - 51,200 ISO 100 - 25,600 ISO
    Image Processor EXPEED 4 TruePic VII
    DXO Sensor Quality (score) 97 72
    DXO Color Depth (bits) 25.7 22.8
    DXO Dynamic Range (EV) 14.8 12.3
    DXO Low Light (ISO) 2853 884
    Screen Specs Nikon D810 Olympus E-M10
    Viewfinder Type Optical viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.70x 0.58x
    Viewfinder Resolution 1440k dots
    Top-Level Screen Control Panel no Top Display
    LCD Framing Live View Live View
    Rear LCD Size 3.2inch 3.0inch
    LCD Resolution 1229k dots 1037k dots
    LCD Attachment Fixed screen Tilting screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Nikon D810 Olympus E-M10
    Focus System Phase-detect AF Contrast-detect AF
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/8000s 1/4000s
    Continuous Shooting 5 shutter flaps/s 8 shutter flaps/s
    Time-Lapse PhotographyIntervalometer built-inIntervalometer built-in
    Image StabilizationLens stabilization onlyIn-body stabilization
    Fill Flash Built-in Flash Built-in Flash
    Storage Medium CF or SDXC cards SDXC cards
    Single or Dual Card Slots Dual card slots Single card slot
    UHS card support UHS-I UHS-I
    Connectivity Specs Nikon D810 Olympus E-M10
    External Flash Hotshoe Hotshoe
    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 Wifi built-in Wifi built-in
    Body Specs Nikon D810 Olympus E-M10
    Environmental SealingWeathersealed bodynot weather sealed
    Battery Type Nikon EN-EL15 Olympus BLS-5
    Battery Life (CIPA)1200 shots per charge320 shots per charge
    Body Dimensions 146 x 123 x 82 mm
    (5.7 x 4.8 x 3.2 in)
    119 x 82 x 46 mm
    (4.7 x 3.2 x 1.8 in)
    Camera Weight 980 g (34.6 oz) 396 g (14.0 oz)
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