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Nikon D90 vs Olympus E-M5 II

The Nikon D90 and the Olympus OM-D E-M5 Mark II are two enthusiast cameras that were officially introduced, respectively, in August 2008 and February 2015. The D90 is a DSLR, while the E-M5 II is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (D90) and a Four Thirds (E-M5 II) sensor. The Nikon has a resolution of 12.2 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 D90 versus Olympus E-M5 II
Nikon D90 Olympus E-M5 II
Digital single lens reflex Mirrorless system camera
Nikon F mount lenses Micro Four Thirds lenses
12.2 MP, APS-C Sensor 15.9 MP, Four Thirds Sensor
720/24p Video 1080/60p Video
ISO 200-3,200 (200 - 6,400) ISO 200-25,600
Optical viewfinder Electronic viewfinder (2360k dots)
3.0 LCD, 920k dots 3.0 LCD, 1037k dots
Fixed screen (not touch-sensitive) Swivel touchscreen
4.5 shutter flaps per second 10 shutter flaps per second
Lens stabilization onlyIn-body stabilization
not weather sealedWeathersealed body
850 shots per battery charge310 shots per battery charge
132 x 103 x 77 mm, 703 g 124 x 85 x 45 mm, 469 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon D90 and the Olympus OM-D E-M5 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.

Body comparison

An illustration of the physical size and weight of the Nikon D90 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.

The E-M5 II can be obtained in two different colors (black, silver), while the D90 is only available in black.

Size Nikon D90 vs Olympus E-M5 II
Compare D90 versus E-M5 II top
Comparison D90 or 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 notably smaller (22 percent) than the Nikon D90. Moreover, the E-M5 II is markedly lighter (33 percent) than the D90. It is noteworthy in this context that the E-M5 II is splash and dust-proof, while the D90 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 (D90) 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 D90 gets 850 shots out of its EN-EL3e battery, while the E-M5 II can take 310 images on a single charge of its BLN-1 power pack.

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, just use the right or left arrows in the table to switch to the respective camera. Alternatively, you can also navigate to the CAM-parator app and make your selection from the full list of cameras there.

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Body Specifications
  Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life 1
Weather
Sealing
Camera
Launch 2
Launch
Price (USD)
Street
Price
 
Nikon D90 5.2 in 4.1 in 3.0 in 24.8 oz 850 n Aug 2008 1,299i
 
Olympus E-M5 II 4.9 in 3.3 in 1.8 in 16.5 oz 310 Y Feb 2015 1,099i
 
Canon 40D 5.7 in 4.3 in 2.9 in 29.0 oz 750 n Aug 2007 1,299i
 
Nikon D7000 5.2 in 4.1 in 3.0 in 27.5 oz 1050 Y Sep 2010 1,499i
 
Nikon D3100 4.9 in 3.8 in 3.0 in 17.8 oz 550 n Aug 2010 599i
 
Nikon D300S 5.8 in 4.5 in 3.2 in 33.1 oz 950 Y Jul 2009 1,799i
 
Nikon D3000 5.0 in 3.8 in 2.5 in 18.9 oz 500 n Jul 2009 599i
 
Nikon D5000 5.0 in 4.1 in 3.1 in 20.8 oz 510 n Apr 2009 749i
 
Nikon D60 5.0 in 3.7 in 2.5 in 18.4 oz 500 n Jan 2008 629i
 
Nikon D40X 4.9 in 3.7 in 2.5 in 18.4 oz 520 n Mar 2007 729i
 
Nikon D300 5.8 in 4.5 in 2.9 in 32.6 oz 1000 Y Aug 2007 1,799i
 
Nikon D80 5.2 in 4.1 in 3.0 in 23.6 oz 600 n Aug 2006 999i
 
Olympus E-M5 III 4.9 in 3.3 in 2.0 in 14.6 oz 310 Y Oct 2019 1,199 i
 
Olympus E-M10 II 4.7 in 3.3 in 1.9 in 13.8 oz 320 n Aug 2015 649i
 
Olympus E-M10 4.7 in 3.2 in 1.8 in 14.0 oz 320 n Jan 2014 699i
 
Olympus E-M1 5.1 in 3.7 in 2.5 in 17.5 oz 350 Y Sep 2013 1,399i
 
Olympus E-M5 4.8 in 3.5 in 1.7 in 15.0 oz 360 Y Feb 2012 1,299i
Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
(1) Number of images that can be taken on a full battery charge according to the CIPA-standard; (2) Official announcement.

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-M5 II was launched at a somewhat lower price (by 15 percent) than the D90, which makes it more attractive for photographers on a tight budget. 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.

Sensor comparison

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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Nikon D90 features an APS-C sensor and the Olympus E-M5 II a Four Thirds sensor. The sensor area in the E-M5 II is 40 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.5 and 2.0. The sensor in the D90 has a native 3:2 aspect ratio, while the one in the E-M5 II offers a 4:3 aspect.

Nikon D90 and Olympus E-M5 II sensor measures

Despite having a smaller sensor, the E-M5 II offers a higher resolution of 15.9 megapixels, compared with 12.2 MP of the D90. This megapixels advantage comes at the cost of a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 3.76μm versus 5.53μm for the D90). However, it should be noted that the E-M5 II is much more recent (by 6 years and 5 months) than the D90, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently.

The resolution advantage of the Olympus E-M5 II implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the E-M5 II for good quality output (200 dots per inch) amounts to 23 x 17.3 inches or 58.5 x 43.9 cm, for very good quality (250 dpi) 18.4 x 13.8 inches or 46.8 x 35.1 cm, and for excellent quality (300 dpi) 15.4 x 11.5 inches or 39 x 29.3 cm. The corresponding values for the Nikon D90 are 21.4 x 14.2 inches or 54.5 x 36.2 cm for good quality, 17.2 x 11.4 inches or 43.6 x 28.9 cm for very good quality, and 14.3 x 9.5 inches or 36.3 x 24.1 cm for excellent quality prints.

Unlike the D90, 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).

The Nikon D90 has a native sensitivity range from ISO 200 to ISO 3200, which can be extended to ISO 200-6400. The corresponding ISO settings for the Olympus OM-D E-M5 Mark II are ISO 200 to ISO 25600, with the possibility to increase the ISO range to 100-25600.

D90 versus E-M5 II 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"). The Overall DXO ratings for the two cameras under consideration are close, suggesting that they provide similar imaging performance. The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.

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Sensor Characteristics
  Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
 
Nikon D90 APS-C 12.2 4288 2848720/24p22.712.597773
 
Olympus E-M5 II Four Thirds 15.9 4608 34561080/60p23.012.584273
 
Canon 40D APS-C 10.1 3888 2592none22.111.370364
 
Nikon D7000 APS-C 16.1 4928 326410800/24p23.513.9116780
 
Nikon D3100 APS-C 14.2 4608 30721080/24p22.511.391967
 
Nikon D300S APS-C 12.2 4288 2848720/24p22.512.278770
 
Nikon D3000 APS-C 10.0 3872 2592none22.311.156362
 
Nikon D5000 APS-C 12.2 4288 2848720/24p22.712.586872
 
Nikon D60 APS-C 10.0 3872 2592none22.511.456265
 
Nikon D40X APS-C 10.0 3872 2592none22.411.451663
 
Nikon D300 APS-C 12.2 4288 2848none22.112.067967
 
Nikon D80 APS-C 10.0 3872 2592none22.111.252461
 
Olympus E-M5 III Four Thirds 20.2 5184 38884k/24p........
 
Olympus E-M10 II Four Thirds 15.9 4608 34561080/60p23.112.584273
 
Olympus E-M10 Four Thirds 15.9 4608 34561080/30p22.812.388472
 
Olympus E-M1 Four Thirds 15.9 4608 34561080/30p23.012.775773
 
Olympus E-M5 Four Thirds 15.9 4608 34561080/60i22.812.382671

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 E-M5 II provides a better video resolution than the D90. It can shoot movie footage at 1080/60p, while the Nikon is limited to 720/24p.

Feature comparison

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 D90 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 viewfinder in the E-M5 II offers a wider field of view (100%) than the one in the D90 (96%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the E-M5 II has a higher magnification (0.74x vs 0.63x), 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 D90, the Olympus E-M5 II, and comparable cameras.

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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)
Mech
Shutter
Speed
Shutter
Flaps
(1/sec)
Built-in
Flash
(yes/no)
Built-in
Image
Stab
 
Nikon D90optical Y 3.0 920 fixed n 1/4000s 4.5 Y n
 
Olympus E-M5 II2360 n 3.0 1037 swivel Y 1/8000s 10.0 n Y
 
Canon 40Doptical Y 3.0 230 fixed n 1/8000s 6.5 Y n
 
Nikon D7000optical Y 3.0 921 fixed n 1/8000s 6.0 Y n
 
Nikon D3100optical n 3.0 230 fixed n 1/4000s 3.0 Y n
 
Nikon D300Soptical Y 3.0 920 fixed n 1/8000s 7.0 Y n
 
Nikon D3000optical n 3.0 230 fixed n 1/4000s 3.0 Y n
 
Nikon D5000optical n 2.7 230 full-flex n 1/4000s 4.0 Y n
 
Nikon D60optical n 2.5 230 fixed n 1/4000s 3.0 Y n
 
Nikon D40Xoptical n 2.5 230 fixed n 1/4000s 3.0 Y n
 
Nikon D300optical Y 3.0 922 fixed n 1/8000s 6.0 Y n
 
Nikon D80optical n 2.5 230 fixed n 1/4000s 3.0 Y n
 
Olympus E-M5 III2360 n 3.0 1040 swivel Y 1/8000s 10.0 n Y
 
Olympus E-M10 II2360 n 3.0 1040 tilting Y 1/4000s 8.0 Y Y
 
Olympus E-M101440 n 3.0 1037 tilting Y 1/4000s 8.0 Y Y
 
Olympus E-M12360 n 3.0 1037 tilting Y 1/8000s 10.0 n Y
 
Olympus E-M51440 n 3.0 610 tilting Y 1/4000s 9.0 n Y

One difference between the cameras concerns the presence of an on-board flash. The D90 has one, while the E-M5 II does not. While the built-in flash of the D90 is not very powerful, it can at times be useful as a fill-in light.

The E-M5 II has an articulated screen that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in taking selfies. In contrast, the D90 does not have a selfie-screen.

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-M5 II 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 Olympus E-M5 II has 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 D90 writes its imaging data to SDHC cards, while the E-M5 II uses SDXC cards. The E-M5 II supports UHS-II cards (Ultra High Speed data transfer of up to 312 MB/s), while the D90 cannot take advantage of Ultra High Speed SD cards.

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 D90 and Olympus OM-D E-M5 Mark II and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
  Camera
Model
Hotshoe
Port
Internal
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
 
Nikon D90Ymonomono--mini2.0---
 
Olympus E-M5 IIYstereomonoY-micro2.0Y--
 
Canon 40DY-----2.0---
 
Nikon D7000YmonomonoY-mini2.0---
 
Nikon D3100Ymonomono--mini2.0---
 
Nikon D300SYstereomonoY-mini2.0---
 
Nikon D3000Y-----2.0---
 
Nikon D5000Ymonomono--mini2.0---
 
Nikon D60Y-----2.0---
 
Nikon D40XY-----2.0---
 
Nikon D300Y----mini2.0---
 
Nikon D80Y-----2.0---
 
Olympus E-M5 IIIYstereomonoY-micro2.0Y-Y
 
Olympus E-M10 IIYstereomono--micro2.0Y--
 
Olympus E-M10Ystereomono--micro2.0Y--
 
Olympus E-M1YstereomonoY-micro2.0Y--
 
Olympus E-M5Ystereomono--mini2.0---

It is notable that the E-M5 II offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the D90 does not provide wifi capability.

Studio photographers will appreciate that the Olympus E-M5 II (unlike the D90) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the D90 and the E-M5 II have been discontinued, but can regularly be found used on eBay. The D90 was replaced by the Nikon D7000, while the E-M5 II was followed by the Olympus E-M5 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.

Review summary

So what conclusions can be drawn? Is there a clear favorite between the Nikon D90 and the Olympus E-M5 II? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.

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Reasons to prefer the Nikon D90:

  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • Easier setting verification: Features an LCD display on top to control shooting parameters.
  • Longer lasting: Can take more shots (850 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 available for much longer (launched in August 2008).

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

  • More detail: Has more megapixels (15.9 vs 12.2MP), which boosts linear resolution by 12%.
  • High quality composites: Can combine several shots after pixel-shifting its sensor.
  • Better video: Provides higher definition movie capture (1080/60p vs 720/24p).
  • Better sound: Can connect to an external microphone for higher quality sound recording.
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • More complete view: Has a viewfinder with a larger field of view (100% vs 96%).
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.74x vs 0.63x).
  • More detailed LCD: Has a higher resolution rear screen (1037k vs 920k dots).
  • More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
  • Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • Faster burst: Shoots at higher frequency (10 vs 4.5 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • More compact: Is smaller (124x85mm vs 132x103mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 234g or 33 percent) and is thus easier to take along.
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
  • 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.
  • Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
  • Faster buffer clearing: Has an SD card interface that supports the UHS-II standard.
  • More affordable: Was released into a lower priced segment (15 percent cheaper at launch).
  • More modern: Reflects 6 years and 5 months of technical progress since the D90 launch.

If the number of relative strengths (bullet points above) is taken as a guide, the E-M5 II is the clear winner of the contest (25 : 5 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.

D90 05:25 E-M5 II

How about other alternatives? Do the specifications of the Nikon D90 and the Olympus E-M5 II 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 comparison of technical specifications can provide a useful overview of the capabilities of different cameras, it remains incomplete and does no justice, for example, to the way the D90 or the E-M5 II perform in practice. 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 where reviews by experts come in. 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.

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Review Scores
  Camera
Model
camera
  labs  
dp
review  
ephoto
  zine  
imaging
resource
photography
  blog  
Camera
Launch
Launch
Price (USD)
Street
Price
 
Nikon D90+ ++ +4/55/54.5/5 Aug 2008 1,299i
 
Olympus E-M5 II+ +81/1005/54.5/55/5 Feb 2015 1,099i
 
Canon 40D+ ++ +4.5/5o4.5/5 Aug 2007 1,299i
 
Nikon D7000..80/1004.5/55/54.5/5 Sep 2010 1,499i
 
Nikon D3100+ +72/1004.5/55/54.5/5 Aug 2010 599i
 
Nikon D300S+ +82/1004/55/54.5/5 Jul 2009 1,799i
 
Nikon D3000+72/1004/53.5/54.5/5 Jul 2009 599i
 
Nikon D5000+ +75/1004/55/54.5/5 Apr 2009 749i
 
Nikon D6080/100+ +4/5o4.5/5 Jan 2008 629i
 
Nikon D40X79/100+ +4/5o4/5 Mar 2007 729i
 
Nikon D300+ ++ +5/5o4.5/5 Aug 2007 1,799i
 
Nikon D80++ +o4.5/54.5/5 Aug 2006 999i
 
Olympus E-M5 III+82/1004.5/55/54.5/5 Oct 2019 1,199 i
 
Olympus E-M10 II+ +80/1005/55/55/5 Aug 2015 649i
 
Olympus E-M10..80/1005/54.5/55/5 Jan 2014 699i
 
Olympus E-M1+ +84/1004.5/54.5/54.5/5 Sep 2013 1,399i
 
Olympus E-M5+ +80/1004.5/55/55/5 Feb 2012 1,299i
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The above review scores should be interpreted with care, though. The ratings are only valid when referring 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 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.

Nikon D90:
Check Ebay offers
Olympus E-M5 II:
Check Ebay offers

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 your choice using the following search menu. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.

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    Specifications: Nikon D90 vs Olympus E-M5 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 Specifications
    Camera Model Nikon D90 Olympus E-M5 II
    Camera Type Digital single lens reflex Mirrorless system camera
    Camera Lens Nikon F mount lenses Micro Four Thirds lenses
    Launch Date August 2008 February 2015
    Launch Price USD 1,299 USD 1,099
    Sensor Specs Nikon D90 Olympus E-M5 II
    Sensor Technology CMOS CMOS
    Sensor Format APS-C Sensor Four Thirds Sensor
    Sensor Size 23.6 x 15.8 mm 17.3 x 13.0 mm
    Sensor Area 372.88 mm2 224.9 mm2
    Sensor Diagonal 28.4 mm 21.6 mm
    Crop Factor 1.5x 2.0x
    Sensor Resolution 12.2 Megapixels 15.9 Megapixels
    Image Resolution 4288 x 2848 pixels 4608 x 3456 pixels
    Pixel Pitch 5.53 μm 3.76 μm
    Pixel Density 3.28 MP/cm2 7.08 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability 720/24p Video 1080/60p Video
    ISO Setting 200 - 3,200 ISO 200 - 25,600 ISO
    ISO Boost 200 - 6,400 ISO 100 - 25,600 ISO
    Image Processor EXPEED TruePic VII
    DXO Sensor Quality (score) 73 73
    DXO Color Depth (bits) 22.7 23.0
    DXO Dynamic Range (EV) 12.5 12.5
    DXO Low Light (ISO) 977 842
    Screen Specs Nikon D90 Olympus E-M5 II
    Viewfinder Type Optical viewfinder Electronic viewfinder
    Viewfinder Field of View 96% 100%
    Viewfinder Magnification 0.63x 0.74x
    Viewfinder Resolution 2360k dots
    Top-Level Screen Control Panel no Top Display
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 920k dots 1037k dots
    LCD Attachment Fixed screen Swivel screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Nikon D90 Olympus E-M5 II
    Focus System Phase-detect AF Contrast-detect AF
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/4000s 1/8000s
    Continuous Shooting 4.5 shutter flaps/s 10 shutter flaps/s
    Electronic Shutterno E-Shutterup to 1/16000s
    Time-Lapse Photographyno IntervalometerIntervalometer built-in
    Image StabilizationLens stabilization onlyIn-body stabilization
    Fill Flash Build-in Flash no On-Board Flash
    Storage Medium SDHC cards SDXC cards
    Second Storage Option Single card slot Single card slot
    UHS card support no UHS-II
    Connectivity Specs Nikon D90 Olympus E-M5 II
    External Flash Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 2.0
    HDMI Port mini HDMI micro HDMI
    Microphone Port no MIC socket External MIC port
    Wifi Support no Wifi Wifi built-in
    Body Specs Nikon D90 Olympus E-M5 II
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type EN-EL3e BLN-1
    Battery Life (CIPA)850 shots per charge310 shots per charge
    Body Dimensions 132 x 103 x 77 mm
    (5.2 x 4.1 x 3.0 in)
    124 x 85 x 45 mm
    (4.9 x 3.3 x 1.8 in)
    Camera Weight 703 g (24.8 oz) 469 g (16.5 oz)

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