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Nikon D750 versus Olympus E-M5 II

The Nikon D750 and the Olympus OM-D E-M5 Mark II are two enthusiast cameras that were officially introduced, respectively, in September 2014 and February 2015. The D750 is a DSLR, while the E-M5 II is a mirrorless interchangeable lens camera. The cameras are based on a full frame (D750) and a Four Thirds (E-M5 II) sensor. The Nikon has a resolution of 24.2 megapixel, whereas the Olympus provides 15.9 MP. Read on to find out how these two cameras compare with respect to their size, their sensors, their features, and their reception by expert reviewers.

Body comparison: Nikon D750 vs Olympus E-M5 II

An illustration of the physical size and weight of the Nikon D750 and the Olympus E-M5 II is provided in the side-by-side display below. 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. If you prefer, you can also use the toggle button to switch to a comparison in percentage terms (in this case, the camera on the left – the D750 – represents 100 percent across all the size and weight measures).

Compare Nikon D750 vs Olympus E-M5 II
Compare D750 versus E-M5 II top
Compare D750 and E-M5 II rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Olympus E-M5 II is considerably smaller (34 percent) than the Nikon D750. Moreover, the E-M5 II is substantially lighter (37 percent) than the D750. In this context, it is worth noting that both cameras are splash and dust-proof and can, hence, be used in inclement weather conditions or harsh environments.

The above size and weight comparisons are to some extent incomplete since they do not consider the interchangeable lenses that both of these cameras require. A larger imaging sensor will tend to go along with bigger and heavier lenses, although exceptions exist. You can find an overview of optics for the two cameras in the Nikon Lens Catalog (D750) and the Micro Four Thirds Lens Catalog (E-M5 II). Mirrorless cameras, such as the E-M5 II, 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 D750 gets 1230 shots out of its EN-EL15 battery, while the E-M5 II can take 310 images on a single charge of its BLN-1 power pack.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. If you want to switch the focus of the display and review another camera pair, just select a new right or left comparator from among the camera models in the table. Alternatively, you can also move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.

Camera Body Specifications
  Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
(CIPA)
Weather
Sealing
(yes/no)
Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
Nikon D750» 5.6 in 4.4 in 3.1 in 26.5 oz 1230 Y Sep 2014 2,299 i i Nikon D750
Olympus E-M5 II« 4.9 in 3.3 in 1.8 in 16.5 oz 310 Y Feb 2015 1,099 i i Olympus E-M5 II
Nikon D5« » 6.3 in 6.3 in 3.6 in 49.9 oz 3780 Y Jan 2016 6,499 i i Nikon D5
Nikon D500« » 5.8 in 4.5 in 3.2 in 30.3 oz 1240 Y Jan 2016 1,999 i i Nikon D500
Nikon D7200« » 5.4 in 4.2 in 3.0 in 27.0 oz 1110 Y Mar 2015 1,199- i Nikon D7200
Nikon D810« » 5.7 in 4.8 in 3.2 in 34.6 oz 1200 Y Jun 2014 3,299- i Nikon D810
Nikon D4S« » 6.3 in 6.2 in 3.6 in 47.6 oz 3020 Y Feb 2014 6,499- i Nikon D4S
Nikon D7100« » 5.4 in 4.2 in 3.0 in 27.0 oz 950 Y Feb 2013 1,199- i Nikon D7100
Nikon D610« » 5.6 in 4.4 in 3.2 in 30.0 oz 900 Y Oct 2013 1,999 i i Nikon D610
Nikon Df« » 5.7 in 4.3 in 2.6 in 26.8 oz 1400 Y Nov 2013 2,749 i i Nikon Df
Nikon D600« » 5.6 in 4.4 in 3.2 in 30.0 oz 900 Y Sep 2012 2,099- i Nikon D600
Nikon D700« » 5.8 in 4.8 in 3.0 in 37.9 oz 1000 Y Jul 2008 2,999- i Nikon D700
Olympus E-M1 II« » 5.3 in 3.6 in 2.6 in 20.2 oz 440 Y Sep 2016 1,999 i i Olympus E-M1 II
Olympus E-M10 II« » 4.7 in 3.3 in 1.9 in 13.8 oz 320 n Aug 2015 799- i Olympus E-M10 II
Olympus E-M10« » 4.7 in 3.2 in 1.8 in 14.0 oz 320 n Jan 2014 699- i Olympus E-M10
Olympus E-M1« » 5.1 in 3.7 in 2.5 in 17.5 oz 350 Y Sep 2013 1,399- i Olympus E-M1
Olympus E-M5« » 4.8 in 3.5 in 1.7 in 15.0 oz 360 Y Feb 2012 1,299- i Olympus E-M5

The camera’s price is obviously a critical decision-making factor. The retail prices at the time of the camera’s release place the model in the market relative to other models in the producer’s line-up and the competition. The E-M5 II was launched at a markedly lower price (by 52 percent) than the D750, 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: Nikon D750 vs Olympus E-M5 II

The size of the imaging sensor is a crucial determinant of image quality. A large sensor will generally have larger individual pixels that offer better low-light sensitivity, provide wider dynamic range, and have richer color-depth than smaller pixels in a sensor of the same technological generation. 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 D750 features a full frame sensor and the Olympus E-M5 II a Four Thirds sensor. The sensor area in the E-M5 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 D750 has a native 3:2 aspect ratio, while the one in the E-M5 II offers a 4:3 aspect.

Nikon D750 and Olympus E-M5 II sensor measures

With 24.2MP, the D750 offers a higher resolution than the E-M5 II (15.9MP), but the D750 nevertheless has larger individual pixels (pixel pitch of 5.97μm versus 3.76μm for the E-M5 II) due to its larger sensor. However, the E-M5 II is a somewhat more recent model (by 4 months) than the D750, and its sensor might have benefitted from technological advances during this time that enhance the light gathering capacity of its pixels.

Unlike the D750, the E-M5 II has the capacity to capture high quality composite images (40MP) by combining multiple shots after shifting its sensor by miniscule distances. This multi-shot, pixel-shift mode is most suitable for photography of stationary objects (landscapes, studio scenes).

D750 versus E-M5 II MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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"). Of the two cameras under review, the D750 provides substantially higher image quality than the E-M5 II, with an overall score that is 20 points higher. This advantage is based on 1.8 bits higher color depth, 2 EV in additional dynamic range, and 1.8 stops in additional low light sensitivity. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.

Sensor Characteristics
  Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Camera
Model
Nikon D750» Full Frame 24.2 6016 40161080/60p24.814.5295693Nikon D750
Olympus E-M5 II« Four Thirds 15.9 4608 34561080/60p23.012.584273Olympus E-M5 II
Nikon D5« » Full Frame 20.7 5588 37124K/30p25.112.3234388Nikon D5
Nikon D500« » APS-C 20.7 5568 37124K/30p24.014.0132483Nikon D500
Nikon D7200« » APS-C 24.0 6000 40001080/60p24.514.6133387Nikon D7200
Nikon D810« » Full Frame 36.2 7360 49121080/60p25.714.8285397Nikon D810
Nikon D4S« » Full Frame 16.2 4928 32801080/60p24.413.3307489Nikon D4S
Nikon D7100« » APS-C 24.0 6000 40001080/60p24.213.7125683Nikon D7100
Nikon D610« » Full Frame 24.2 6016 40161080/30p25.114.4292594Nikon D610
Nikon Df« » Full Frame 16.2 4928 3280-24.613.1327989Nikon Df
Nikon D600« » Full Frame 24.2 6016 40161080/30p25.114.2298094Nikon D600
Nikon D700« » Full Frame 12.1 4256 2832-23.512.2230380Nikon D700
Olympus E-M1 II« » Four Thirds 20.2 5184 38884K/30p23.712.8131280Olympus E-M1 II
Olympus E-M10 II« » Four Thirds 15.9 4608 34561080/60p23.112.584273Olympus E-M10 II
Olympus E-M10« » Four Thirds 15.9 4608 34561080/30p22.812.388472Olympus E-M10
Olympus E-M1« » Four Thirds 15.9 4608 34561080/30p23.012.775773Olympus E-M1
Olympus E-M5« » Four Thirds 15.9 4608 34561080/60i22.812.382671Olympus E-M5

Many modern cameras are not only capable of taking still images, but can also record movies. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, and both provide the same movie specifications (1080/60p).

 

Feature comparison: Nikon D750 vs Olympus E-M5 II

Beyond body and sensor, cameras can and do differ across a range of features. For example, the E-M5 II has an electronic viewfinder (2360k dots), while the D750 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 following table reports on some other key feature differences and similarities of the Nikon D750, the Olympus E-M5 II, and comparable cameras. The full specs-sheets can be found in the camera manual or, for example, in the dpreview camera hub.

Core Features
  Camera
Model
Viewfinder
(Type or
'000 dots)
Control
Panel
(yes/no)
LCD
Size
(inch)
LCD
Resolution
('000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Shutter
speed
(1/sec)
Shutter
flaps
(1/sec))
Build-in
Flash
(yes/no)
Build-in
Image
Stab
Camera
Model
Nikon D750»optical Y 3.2 1229 tilting n 4000 6.0 Y n Nikon D750
Olympus E-M5 II«2360 n 3.0 1037 swivel Y 8000 10.0 n Y Olympus E-M5 II
Nikon D5« »optical Y 3.2 2359 fixed Y 8000 14.0 n n Nikon D5
Nikon D500« »optical Y 3.2 2359 tilting Y 8000 10.0 n n Nikon D500
Nikon D7200« »optical Y 3.2 1229 fixed n 8000 6.0 Y n Nikon D7200
Nikon D810« »optical Y 3.2 1229 fixed n 4000 5.0 Y n Nikon D810
Nikon D4S« »optical Y 3.2 921 fixed n 8000 11.0 n n Nikon D4S
Nikon D7100« »optical Y 3.2 1229 fixed n 8000 6.0 Y n Nikon D7100
Nikon D610« »optical Y 3.2 921 fixed n 4000 6.0 Y n Nikon D610
Nikon Df« »optical Y 3.2 921 fixed n 4000 5.5 n n Nikon Df
Nikon D600« »optical Y 3.0 921 fixed n 4000 5.5 Y n Nikon D600
Nikon D700« »optical Y 3.0 922 fixed n 8000 8.0 Y n Nikon D700
Olympus E-M1 II« »2360 n 3.0 1037 swivel Y 8000 18.0 n Y Olympus E-M1 II
Olympus E-M10 II« »2360 n 3.0 1040 tilting Y 4000 8.0 Y Y Olympus E-M10 II
Olympus E-M10« »1440 n 3.0 1037 tilting Y 4000 8.0 Y Y Olympus E-M10
Olympus E-M1« »2360 n 3.0 1037 tilting Y 8000 10.0 n Y Olympus E-M1
Olympus E-M5« »1440 n 3.0 610 tilting Y 4000 9.0 n Y Olympus E-M5

The reported shutter speed and shutter burst refer to the use of the mechanical shutter. In addition, the E-M5 II features an electronic shutter, which makes silent shooting and higher burst speeds possible. However, this mode is less suitable for photographing moving objects (rolling shutter) or shooting under artificial light sources (flickering).

Both the D750 and the E-M5 II are current models that good online retailers will have in stock. You can check the latest prices, for example, at amazon. The D750 replaced the earlier Nikon D700, while the E-M5 II followed on from the Olympus E-M5.

Review summary: Nikon D750 vs Olympus E-M5 II

So what is the bottom line? Is the Nikon D750 better than the Olympus E-M5 II or vice versa? Below is a summary of the relative strengths of each of the two contestants.

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Reasons to prefer the Nikon D750:

  • More detail: Offers more megapixels (24.2 vs 15.9MP) with a 26% higher linear resolution.
  • Better image quality: Scores substantially higher (20 points) in the DXO overall assessment.
  • Richer colors: Generates images with noticeably better colors (1.8 bits more color depth).
  • More dynamic range: Captures a larger spectrum of light and dark details (2 EV of extra DR).
  • Better low-light sensitivity: Requires less light for good images (1.8 stops ISO advantage).
  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • Easier setting verification: Has 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).
  • Longer lasting: Can take more shots (1230 versus 310) on a single battery charge.
  • Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
  • More heavily discounted: Has been on the market for longer (launched in September 2014).

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Arguments in favor of the Olympus OM-D E-M5 Mark II:

  • High quality composites: Can combine several shots after pixel-shifting its sensor.
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • More flexible LCD: Has swivel screen for odd-angle shots in portrait or landscape orientation.
  • Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
  • Faster shutter: Has higher mechanical shutter speed (8000/sec vs 4000/sec) to freeze action.
  • Faster burst: Shoots at higher frequency (10 vs 6 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • More compact: Is smaller (124x85mm vs 141x113mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 281g or 37 percent) and is thus easier to take along.
  • More legacy lens friendly: Can use many non-native lenses via adapters.
  • Sharper images: Has stabilization technology build-in to reduce the impact of hand-shake.
  • More affordable: Was introduced into a lower priced category (52 percent cheaper at launch).
  • More modern: Was introduced somewhat (4 months) more recently.

If the count of relative strengths (bullet points above) is taken as a measure, the E-M5 II comes out slightly ahead of the D750 (13 : 12 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.

D750 12:13 E-M5 II

In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it says nothing about, for example, the handling, responsiveness, and overall imaging quality of the D750 and the E-M5 II in practical situations. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased. This is why expert reviews are important. The table below summarizes the assessments of some of the best known camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, photographyblog). You can find the full text of the reviews by clicking on the site logo in the table header.

Review Scores
  Camera
Model
cameralabs dpreview ephotozine imaging-resource photographyblog Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
Nikon D750»HiRec90/1004.5/55/54.5/5 Sep 2014 2,299 i i Nikon D750
Olympus E-M5 II«HiRec81/1005/54.5/55/5 Feb 2015 1,099 i i Olympus E-M5 II
Nikon D5« »-89/1004.5/55/55/5 Jan 2016 6,499 i i Nikon D5
Nikon D500« »HiRec91/1004.5/55/55/5 Jan 2016 1,999 i i Nikon D500
Nikon D7200« »HiRec84/1004.5/54/54.5/5 Mar 2015 1,199- i Nikon D7200
Nikon D810« »-86/1005/54.5/54.5/5 Jun 2014 3,299- i Nikon D810
Nikon D4S« »--4.5/55/54.5/5 Feb 2014 6,499- i Nikon D4S
Nikon D7100« »HiRec85/1004.5/55/54.5/5 Feb 2013 1,199- i Nikon D7100
Nikon D610« »HiRec87/1004.5/54.5/54.5/5 Oct 2013 1,999 i i Nikon D610
Nikon Df« »-81/1004/54/54/5 Nov 2013 2,749 i i Nikon Df
Nikon D600« »HiRec87/1005/54.5/54.5/5 Sep 2012 2,099- i Nikon D600
Nikon D700« »89/100HiRec4.5/55/54.5/5 Jul 2008 2,999- i Nikon D700
Olympus E-M1 II« »HiRec85/1004.5/55/54.5/5 Sep 2016 1,999 i i Olympus E-M1 II
Olympus E-M10 II« »HiRec80/1005/55/55/5 Aug 2015 799- i Olympus E-M10 II
Olympus E-M10« »-80/1005/54.5/55/5 Jan 2014 699- i Olympus E-M10
Olympus E-M1« »HiRec84/1004.5/54.5/54.5/5 Sep 2013 1,399- i Olympus E-M1
Olympus E-M5« »HiRec80/1004.5/55/55/5 Feb 2012 1,299- i Olympus E-M5

The above review scores should be interpreted with care, though. The ratings are only valid when refering 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. If you do not see the camera that you are looking for, kindly get in touch, and I will try to add information on that model to the database.

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