Nikon D750 versus Olympus E-M1 II
The Nikon D750 and the Olympus OM-D E-M1 Mark II are two enthusiast cameras that were revealed to the public, respectively, in September 2014 and September 2016. The D750 is a DSLR, while the E-M1 II is a mirrorless interchangeable lens camera. The cameras are based on a full frame (D750) and a Four Thirds (E-M1 II) sensor. The Nikon has a resolution of 24.2 megapixel, whereas the Olympus provides 20.2 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-M1 II
The side-by-side display below illustrates the physical size and weight of the Nikon D750 and the Olympus E-M1 II. Three successive views from the front, the top, and the rear are shown. All size dimensions are rounded to the nearest millimeter. You can also toggle the display to switch to a percentage comparison if you prefer that the measures are being expressed in relative terms (in this case, the camera on the left – the D750 – represents the basis or 100 percent across all the size and weight measures).
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Olympus E-M1 II is notably smaller (23 percent) than the Nikon D750. Moreover, the E-M1 II is markedly lighter (23 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-M1 II). Mirrorless cameras, such as the E-M1 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.
The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. 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|
|Nikon D750»||141 mm||113 mm||78 mm||750 g||1230||Y||Sep 2014||2,299|
|Olympus E-M1 II«||134 mm||91 mm||67 mm||574 g||440||Y||Sep 2016||1,999|
|Nikon D5« »||160 mm||159 mm||92 mm||1415 g||3780||Y||Jan 2016||6,499|
|Nikon D500« »||147 mm||115 mm||81 mm||860 g||1240||Y||Jan 2016||1,999|
|Nikon D7200« »||136 mm||107 mm||76 mm||765 g||1110||Y||Mar 2015||1,199||-|
|Nikon D810« »||146 mm||123 mm||82 mm||980 g||1200||Y||Jun 2014||3,299||-|
|Nikon D4S« »||160 mm||157 mm||91 mm||1350 g||3020||Y||Feb 2014||6,499||-|
|Nikon D7100« »||136 mm||107 mm||76 mm||765 g||950||Y||Feb 2013||1,199||-|
|Nikon D610« »||141 mm||113 mm||82 mm||850 g||900||Y||Oct 2013||1,999|
|Nikon Df« »||144 mm||110 mm||67 mm||760 g||1400||Y||Nov 2013||2,749|
|Nikon D600« »||141 mm||113 mm||82 mm||850 g||900||Y||Sep 2012||2,099||-|
|Nikon D700« »||147 mm||123 mm||77 mm||1074 g||1000||Y||Jul 2008||2,999||-|
|Olympus PEN-F« »||125 mm||72 mm||37 mm||427 g||330||n||Jan 2016||1,199|
|Olympus E-M5 II« »||124 mm||85 mm||45 mm||469 g||310||Y||Feb 2015||1,099|
|Olympus E-M1« »||130 mm||94 mm||63 mm||497 g||350||Y||Sep 2013||1,399||-|
|Panasonic GH5« »||139 mm||98 mm||87 mm||725 g||410||Y||Jan 2017||1,999|
|Panasonic GX8« »||133 mm||78 mm||63 mm||487 g||330||Y||Jul 2015||1,199||-|
The price is, of course, an important factor in any camera decision. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The E-M1 II was launched at a somewhat lower price (by 13 percent) than the D750, which makes it more attractive for photographers on a tight budget. 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-M1 II
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. 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Nikon D750 features a full frame sensor and the Olympus E-M1 II a Four Thirds sensor. The sensor area in the E-M1 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-M1 II offers a 4:3 aspect.
With 24.2MP, the D750 offers a higher resolution than the E-M1 II (20.2MP), but the D750 nevertheless has larger individual pixels (pixel pitch of 5.97μm versus 3.34μm for the E-M1 II) due to its larger sensor. However, the E-M1 II is a somewhat more recent model (by 2 years) than the D750, 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 the E-M1 II has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
Unlike the D750, the E-M1 II has the capacity to capture high quality composite images (50MP) 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).
Consistent information on actual sensor performance is available from DXO Mark for most 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 D750 provides substantially higher image quality than the E-M1 II, with an overall score that is 13 points higher. This advantage is based on 1.1 bits higher color depth, 1.7 EV in additional dynamic range, and 1.2 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.
|Nikon D750»||Full Frame||24.2||6016||4016||1080/60p||24.8||14.5||2956||93|
|Olympus E-M1 II«||Four Thirds||20.2||5184||3888||4K/30p||23.7||12.8||1312||80|
|Nikon D5« »||Full Frame||20.7||5588||3712||4K/30p||25.1||12.3||2343||88|
|Nikon D500« »||APS-C||20.7||5568||3712||4K/30p||24.0||14.0||1324||83|
|Nikon D7200« »||APS-C||24.0||6000||4000||1080/60p||24.5||14.6||1333||87|
|Nikon D810« »||Full Frame||36.2||7360||4912||1080/60p||25.7||14.8||2853||97|
|Nikon D4S« »||Full Frame||16.2||4928||3280||1080/60p||24.4||13.3||3074||89|
|Nikon D7100« »||APS-C||24.0||6000||4000||1080/60p||24.2||13.7||1256||83|
|Nikon D610« »||Full Frame||24.2||6016||4016||1080/30p||25.1||14.4||2925||94|
|Nikon Df« »||Full Frame||16.2||4928||3280||-||24.6||13.1||3279||89|
|Nikon D600« »||Full Frame||24.2||6016||4016||1080/30p||25.1||14.2||2980||94|
|Nikon D700« »||Full Frame||12.1||4256||2832||-||23.5||12.2||2303||80|
|Olympus PEN-F« »||Four Thirds||20.2||5184||3888||1080/60p||23.1||12.4||894||74|
|Olympus E-M5 II« »||Four Thirds||15.9||4608||3456||1080/60p||23.0||12.5||842||73|
|Olympus E-M1« »||Four Thirds||15.9||4608||3456||1080/30p||23.0||12.7||757||73|
|Panasonic GH5« »||Four Thirds||20.2||5184||3888||4K/60p||23.9||13.0||807||77|
|Panasonic GX8« »||Four Thirds||20.2||5184||3888||4K/30p||23.5||12.6||806||75|
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 E-M1 II provides a better video resolution than the D750. It can shoot movie footage at 4K/30p, while the Nikon is limited to 1080/60p.
Feature comparison: Nikon D750 vs Olympus E-M1 II
Apart from body and sensor, cameras can and do differ across a variety of features. For example, the E-M1 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 adjacent table lists some of the other core features of the Nikon D750 and Olympus E-M1 II along with similar information for a selection of comparators. If needed, the dpreview camera hub, for example, contains further detail on the cameras' specs.
|Olympus E-M1 II«||2360||n||3.0||1037||swivel||Y||8000||18.0||n||Y|
|Nikon D5« »||optical||Y||3.2||2359||fixed||Y||8000||14.0||n||n|
|Nikon D500« »||optical||Y||3.2||2359||tilting||Y||8000||10.0||n||n|
|Nikon D7200« »||optical||Y||3.2||1229||fixed||n||8000||6.0||Y||n|
|Nikon D810« »||optical||Y||3.2||1229||fixed||n||4000||5.0||Y||n|
|Nikon D4S« »||optical||Y||3.2||921||fixed||n||8000||11.0||n||n|
|Nikon D7100« »||optical||Y||3.2||1229||fixed||n||8000||6.0||Y||n|
|Nikon D610« »||optical||Y||3.2||921||fixed||n||4000||6.0||Y||n|
|Nikon Df« »||optical||Y||3.2||921||fixed||n||4000||5.5||n||n|
|Nikon D600« »||optical||Y||3.0||921||fixed||n||4000||5.5||Y||n|
|Nikon D700« »||optical||Y||3.0||922||fixed||n||8000||8.0||Y||n|
|Olympus PEN-F« »||2360||n||3.0||1037||swivel||Y||8000||10.0||n||Y|
|Olympus E-M5 II« »||2360||n||3.0||1037||swivel||Y||8000||10.0||n||Y|
|Olympus E-M1« »||2360||n||3.0||1037||tilting||Y||8000||10.0||n||Y|
|Panasonic GH5« »||3680||n||3.2||1620||swivel||Y||8000||12.0||n||Y|
|Panasonic GX8« »||2360||n||3.0||1040||swivel||Y||8000||10.0||n||Y|
Both the D750 and the E-M1 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-M1 II followed on from the Olympus E-M1.
Review summary: Nikon D750 vs Olympus E-M1 II
So what is the bottom line? Is the Nikon D750 better than the Olympus E-M1 II or vice versa? The listing below highlights the relative strengths of the two models.
Advantages of the Nikon D750:
- More detail: Offers more megapixels (24.2 vs 20.2MP) with a 12% higher linear resolution.
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- Better image quality: Scores substantially higher (13 points) in the DXO overall assessment.
- Richer colors: Generates images with noticeably better colors (1.1 bits more color depth).
- More dynamic range: Captures a larger spectrum of light and dark details (1.7 EV of extra DR).
- Better low-light sensitivity: Requires less light for good images (1.2 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 440) 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 available for much longer (launched in September 2014).
Arguments in favor of the Olympus OM-D E-M1 Mark II:
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- High quality composites: Can combine several shots after pixel-shifting its sensor.
- Better video: Provides higher definition movie capture (4K/30p vs 1080/60p).
- 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 (18 vs 6 flaps/sec) to capture the decisive moment.
- More compact: Is smaller (134x91mm vs 141x113mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 176g or 23 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 released into a lower priced segment (13 percent cheaper at launch).
- More modern: Reflects 2 years of technical progress since the D750 launch.
If the number of relative strengths (bullet points above) is taken as a guide, the E-M1 II comes out slightly ahead of the D750 (14 : 13 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.
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-M1 II in practical situations. 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. 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). The detailed reviews can be accessed by clicking on the site logo in the table header.
|Nikon D750»||HiRec||90/100||4.5/5||5/5||4.5/5||Sep 2014||2,299|
|Olympus E-M1 II«||HiRec||85/100||4.5/5||5/5||4.5/5||Sep 2016||1,999|
|Nikon D5« »||-||89/100||4.5/5||5/5||5/5||Jan 2016||6,499|
|Nikon D500« »||HiRec||91/100||4.5/5||5/5||5/5||Jan 2016||1,999|
|Nikon D7200« »||HiRec||84/100||4.5/5||4/5||4.5/5||Mar 2015||1,199||-|
|Nikon D810« »||-||86/100||5/5||4.5/5||4.5/5||Jun 2014||3,299||-|
|Nikon D4S« »||-||-||4.5/5||5/5||4.5/5||Feb 2014||6,499||-|
|Nikon D7100« »||HiRec||85/100||4.5/5||5/5||4.5/5||Feb 2013||1,199||-|
|Nikon D610« »||HiRec||87/100||4.5/5||4.5/5||4.5/5||Oct 2013||1,999|
|Nikon Df« »||-||81/100||4/5||4/5||4/5||Nov 2013||2,749|
|Nikon D600« »||HiRec||87/100||5/5||4.5/5||4.5/5||Sep 2012||2,099||-|
|Nikon D700« »||89/100||HiRec||4.5/5||5/5||4.5/5||Jul 2008||2,999||-|
|Olympus PEN-F« »||-||82/100||4.5/5||4.5/5||5/5||Jan 2016||1,199|
|Olympus E-M5 II« »||HiRec||81/100||5/5||4.5/5||5/5||Feb 2015||1,099|
|Olympus E-M1« »||HiRec||84/100||4.5/5||4.5/5||4.5/5||Sep 2013||1,399||-|
|Panasonic GH5« »||HiRec||85/100||4.5/5||5/5||5/5||Jan 2017||1,999|
|Panasonic GX8« »||Rec||82/100||4.5/5||5/5||4.5/5||Jul 2015||1,199||-|
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. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. Also, please note that some of the review sites have changed their methodology and reporting over time.
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