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Olympus E-M5 II vs Nikon D7100

The Olympus OM-D E-M5 Mark II and the Nikon D7100 are two enthusiast cameras that were announced, respectively, in February 2015 and February 2013. The E-M5 II is a mirrorless interchangeable lens camera, while the D7100 is a DSLR. The cameras are based on a Four Thirds (E-M5 II) and an APS-C (D7100) sensor. The Olympus has a resolution of 15.9 megapixels, whereas the Nikon provides 24 MP.

Below is an overview of the main specs of the two cameras as a starting point for the comparison.

Headline Specifications
Olympus E-M5 II
versus
Nikon D7100
Olympus E-M5 II   Nikon D7100
Mirrorless system camera Digital single lens reflex
Micro Four Thirds lenses Nikon F mount lenses
15.9 MP – Four Thirds sensor 24 MP – APS-C sensor
1080/60p Video 1080/60p Video
ISO 200-25,600 ISO 100-6,400 (50 - 25,600)
Electronic viewfinder (2360k dots) Optical viewfinder
3.0" LCD – 1037k dots 3.2" LCD – 1229k dots
Swivel touchscreen Fixed screen (not touch-sensitive)
10 shutter flaps per second 6 shutter flaps per second
In-body stabilizationLens stabilization only
Weathersealed bodyWeathersealed body
310 shots per battery charge950 shots per battery charge
124 x 85 x 45 mm, 469 g 136 x 107 x 76 mm, 765 g
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Check E-M5 II offers at
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Check D7100 offers at
ebay.com

Going beyond this snapshot of core features and characteristics, what are the differences between the Olympus OM-D E-M5 Mark II and the Nikon D7100? 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 physical size and weight of the Olympus E-M5 II and the Nikon D7100 are illustrated 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 dimensions are rounded to the nearest millimeter.

The E-M5 II can be obtained in two different colors (black, silver), while the D7100 is only available in black.

Size Olympus E-M5 II vs Nikon D7100
Compare E-M5 II versus D7100 top
Comparison E-M5 II or D7100 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Nikon D7100 is notably larger (38 percent) than the Olympus E-M5 II. Moreover, the D7100 is substantially heavier (63 percent) than the E-M5 II. 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 compare the optics available for the two cameras in the Micro Four Thirds Lens Catalog (E-M5 II) and the Nikon Lens Catalog (D7100). Mirrorless cameras, such as the Olympus E-M5 II, have moreover the advantage that they have a relatively short flange to focal plane distance and can thus use many lenses from other systems via adapters.

Concerning battery life, the E-M5 II gets 310 shots out of its Olympus BLN-1 battery, while the D7100 can take 950 images on a single charge of its Nikon EN-EL15 power pack.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. 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
# image Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Olympus E-M5 II 124 mm 85 mm 45 mm 469 g 310 Y Feb 2015 1,099ebay.com
2.
 
Nikon D7100 136 mm 107 mm 76 mm 765 g 950 Y Feb 2013 1,199ebay.com
3.
 
Canon 70D 139 mm 104 mm 79 mm 755 g 920 Y Jul 2013 1,199ebay.com
4.
 
Nikon D7500 136 mm 104 mm 73 mm 720 g 950 Y Apr 2017 1,299 amazon.com
5.
 
Nikon D7200 136 mm 107 mm 76 mm 765 g 1110 Y Mar 2015 1,199ebay.com
6.
 
Nikon D3300 124 mm 98 mm 76 mm 430 g 700 n Jan 2014 499ebay.com
7.
 
Nikon D7000 132 mm 105 mm 77 mm 780 g 1050 Y Sep 2010 1,499ebay.com
8.
 
Olympus E-M5 III 125 mm 85 mm 50 mm 414 g 310 Y Oct 2019 1,199ebay.com
9.
 
Olympus PEN-F 125 mm 72 mm 37 mm 427 g 330 n Jan 2016 1,199ebay.com
10.
 
Olympus E-M10 II 120 mm 83 mm 47 mm 390 g 320 n Aug 2015 649ebay.com
11.
 
Olympus E-M10 119 mm 82 mm 46 mm 396 g 320 n Jan 2014 699ebay.com
12.
 
Olympus E-M1 130 mm 94 mm 63 mm 497 g 350 Y Sep 2013 1,399ebay.com
13.
 
Olympus E-P5 122 mm 69 mm 37 mm 420 g 330 n May 2013 999ebay.com
14.
 
Olympus E-M5 122 mm 89 mm 43 mm 425 g 360 Y Feb 2012 1,299ebay.com
15.
 
Panasonic G85 128 mm 89 mm 74 mm 505 g 330 Y Sep 2016 899ebay.com
16.
 
Panasonic GX85 122 mm 71 mm 44 mm 426 g 290 n Apr 2016 799 amazon.com
17.
 
Panasonic GX8 133 mm 78 mm 63 mm 487 g 330 Y Jul 2015 1,199ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
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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-M5 II was somewhat cheaper (by 8 percent) than the D7100 at launch, but both cameras fall into the same price category. 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.

Sensor comparison

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

Of the two cameras under consideration, the Olympus E-M5 II features a Four Thirds sensor and the Nikon D7100 an APS-C sensor. The sensor area in the D7100 is 63 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.0 and 1.5. The sensor in the E-M5 II has a native 4:3 aspect ratio, while the one in the D7100 offers a 3:2 aspect.

Olympus E-M5 II and Nikon D7100 sensor measures

With 24MP, the D7100 offers a higher resolution than the E-M5 II (15.9MP), but the D7100 nevertheless has larger individual pixels (pixel pitch of 3.91μm 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 1 year and 11 months) than the D7100, and its sensor might have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that the D7100 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Nikon D7100 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the D7100 for good quality output (200 dots per inch) amounts to 30 x 20 inches or 76.2 x 50.8 cm, for very good quality (250 dpi) 24 x 16 inches or 61 x 40.6 cm, and for excellent quality (300 dpi) 20 x 13.3 inches or 50.8 x 33.9 cm. The corresponding values for the Olympus E-M5 II 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.

Unlike the D7100, 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 Olympus OM-D E-M5 Mark II has a native sensitivity range from ISO 200 to ISO 25600, which can be extended to ISO 100-25600. The corresponding ISO settings for the Nikon D7100 are ISO 100 to ISO 6400, with the possibility to increase the ISO range to 50-25600.

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.

E-M5 II versus D7100 MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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 consideration, the D7100 has a markedly higher DXO score than the E-M5 II (overall score 10 points higher), which will translate into better image quality. The advantage is based on 1.2 bits higher color depth, 1.2 EV in additional dynamic range, and 0.6 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.

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Sensor Characteristics
# image Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Olympus E-M5 II Four Thirds 15.9 4608 34561080/60p23.012.584273
2.
 
Nikon D7100 APS-C 24.0 6000 40001080/60p24.213.7125683
3.
 
Canon 70D APS-C 20.0 5472 36481080/30p22.511.692668
4.
 
Nikon D7500 APS-C 20.7 5568 37124K/30p24.314.0148386
5.
 
Nikon D7200 APS-C 24.0 6000 40001080/60p24.514.6133387
6.
 
Nikon D3300 APS-C 24.0 6000 40001080/60p24.312.8138582
7.
 
Nikon D7000 APS-C 16.1 4928 32641080/24p23.513.9116780
8.
 
Olympus E-M5 III Four Thirds 20.2 5184 38884K/30p23.313.1132476
9.
 
Olympus PEN-F Four Thirds 20.2 5184 38881080/60p23.112.489474
10.
 
Olympus E-M10 II Four Thirds 15.9 4608 34561080/60p23.112.584273
11.
 
Olympus E-M10 Four Thirds 15.9 4608 34561080/30p22.812.388472
12.
 
Olympus E-M1 Four Thirds 15.9 4608 34561080/30p23.012.775773
13.
 
Olympus E-P5 Four Thirds 15.9 4608 34561080/30p22.812.489572
14.
 
Olympus E-M5 Four Thirds 15.9 4608 34561080/60i22.812.382671
15.
 
Panasonic G85 Four Thirds 15.8 4592 34484K/30p22.812.565671
16.
 
Panasonic GX85 Four Thirds 15.8 4592 34484K/30p22.912.666271
17.
 
Panasonic GX8 Four Thirds 20.2 5184 38884K/30p23.512.680675
Note: DXO values in italics represent estimates based on sensor size and age.
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Many modern cameras are not only capable of taking still images, but can also record movies. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, and both provide the same movie specifications (1080/60p).

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Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. For example, the E-M5 II has an electronic viewfinder (2360k dots), while the D7100 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 E-M5 II has a higher magnification than the one of the D7100 (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 Olympus E-M5 II, the Nikon D7100, and comparable cameras.

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Core Features
# image 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.
 
Olympus E-M5 II2360 n3.0 / 1037 swivel Y 1/8000s 10.0/s n Y
2.
 
Nikon D7100optical Y3.2 / 1229 fixed n 1/8000s 6.0/s Y n
3.
 
Canon 70Doptical Y3.0 / 1040 swivel Y 1/8000s 7.0/s Y n
4.
 
Nikon D7500optical Y3.2 / 922 tilting Y 1/8000s 8.0/s Y n
5.
 
Nikon D7200optical Y3.2 / 1229 fixed n 1/8000s 6.0/s Y n
6.
 
Nikon D3300optical n3.0 / 921 fixed n 1/4000s 5.0/s Y n
7.
 
Nikon D7000optical Y3.0 / 921 fixed n 1/8000s 6.0/s Y n
8.
 
Olympus E-M5 III2360 n3.0 / 1040 swivel Y 1/8000s 10.0/s n Y
9.
 
Olympus PEN-F2360 n3.0 / 1037 swivel Y 1/8000s 10.0/s n Y
10.
 
Olympus E-M10 II2360 n3.0 / 1040 tilting Y 1/4000s 8.0/s Y Y
11.
 
Olympus E-M101440 n3.0 / 1037 tilting Y 1/4000s 8.0/s Y Y
12.
 
Olympus E-M12360 n3.0 / 1037 tilting Y 1/8000s 10.0/s n Y
13.
 
Olympus E-P5optional n3.0 / 1037 tilting Y 1/8000s 9.0/s Y Y
14.
 
Olympus E-M51440 n3.0 / 610 tilting Y 1/4000s 9.0/s n Y
15.
 
Panasonic G852360 n3.0 / 1040 swivel Y 1/4000s 9.0/s Y Y
16.
 
Panasonic GX852765 n3.0 / 1040 tilting Y 1/4000s 8.0/s Y Y
17.
 
Panasonic GX82360 n3.0 / 1040 swivel Y 1/8000s 10.0/s n Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.
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One feature that differentiates the E-M5 II and the D7100 is in-body image stabilization (IBIS). The E-M5 II reduces the risk of handshake-induced blur with all attached lenses, while the D7100 offers no blur reduction with lenses that themselves do not provide optical image stabilization.

The E-M5 II has an articulated LCD that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in snapping selfies. In contrast, the D7100 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 and the Nikon D7100 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.

Concerning the storage of imaging data, both the E-M5 II and the D7100 write their files to SDXC cards. The D7100 features dual card slots, which can be very useful in case a memory card fails. In contrast, the E-M5 II only has one slot. The E-M5 II supports UHS-II cards (Ultra High Speed data transfer of up to 312 MB/s), while the D7100 can use UHS-I cards (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 Olympus OM-D E-M5 Mark II and Nikon D7100 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
# image Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Olympus E-M5 IIYstereo / monoY-micro2.0Y--
2.
 
Nikon D7100Ystereo / monoYYmini2.0---
3.
 
Canon 70DYstereo / monoY-mini2.0Y--
4.
 
Nikon D7500Ystereo / monoYYmini2.0Y-Y
5.
 
Nikon D7200Ystereo / monoYYmini2.0YY-
6.
 
Nikon D3300Ymono / monoY-mini2.0---
7.
 
Nikon D7000Ymono / monoY-mini2.0---
8.
 
Olympus E-M5 IIIYstereo / monoY-micro2.0Y-Y
9.
 
Olympus PEN-FYstereo / mono--micro2.0Y--
10.
 
Olympus E-M10 IIYstereo / mono--micro2.0Y--
11.
 
Olympus E-M10Ystereo / mono--micro2.0Y--
12.
 
Olympus E-M1Ystereo / monoY-micro2.0Y--
13.
 
Olympus E-P5Ystereo / mono--micro2.0Y--
14.
 
Olympus E-M5Ystereo / mono--mini2.0---
15.
 
Panasonic G85Ystereo / monoY-micro2.0Y--
16.
 
Panasonic GX85Ystereo / mono--micro2.0Y--
17.
 
Panasonic GX8Ystereo / monoY-micro2.0YY-
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It is notable that the E-M5 II offers wifi support, while the D7100 does not. Wifi can be a very convenient means to transfer image data to an off-camera location.

Studio photographers will appreciate that the Olympus E-M5 II (unlike the D7100) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the E-M5 II and the D7100 have been discontinued, but can regularly be found used on ebay. The D7100 was replaced by the Nikon D7200, while the E-M5 II was followed by the Olympus E-M5 III. Further information on the features and operation of the E-M5 II and D7100 can be found, respectively, in the Olympus E-M5 II Manual (free pdf) or the online Nikon D7100 Manual.

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Review summary

So what is the bottom line? Is there a clear favorite between the Olympus E-M5 II and the Nikon D7100? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.

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Reasons to prefer the Olympus OM-D E-M5 Mark II:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • High quality composites: Can combine several shots after pixel-shifting its sensor.
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.74x vs 0.63x).
  • More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
  • Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • 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 136x107mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 296g or 39 percent) and hence easier to carry around.
  • Sharper images: Has hand-shake reducing image stabilization built-in.
  • More legacy lens friendly: Can take a broad range of 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: Supports a more advanced SD data transfer standard (UHS-II vs UHS-I).
  • More modern: Is somewhat more recent (announced 1 year and 11 months after the D7100).

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Arguments in favor of the Nikon D7100:

  • More detail: Has more megapixels (24 vs 15.9MP), which boosts linear resolution by 25%.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Better image quality: Scores markedly higher (10 points) in the DXO overall evaluation.
  • Richer colors: Generates noticeably more natural colors (1.2 bits more color depth).
  • More dynamic range: Captures a broader range of light and dark details (1.2 EV of extra DR).
  • Better low-light sensitivity: Can shoot in dim conditions (0.6 stops ISO advantage).
  • Better sound control: Has a headphone port that enables audio monitoring while recording.
  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • Easier setting verification: Features a control panel on top to check 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: Gets more shots (950 versus 310) out of a single battery charge.
  • Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
  • More heavily discounted: Has been on the market for longer (launched in February 2013).

If the count of individual advantages (bullet points above) is taken as a guide, the E-M5 II emerges as the winner of the contest (17 : 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.

E-M5 II 17:15 D7100

How about other alternatives? Do the specifications of the Olympus E-M5 II and the Nikon D7100 place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera and Best DSLR 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 E-M5 II and the D7100 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.

Expert reviews

This is where reviews by experts come in. 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
# image  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Olympus E-M5 II5/5+ +4.5/581/1005/55/5 Feb 2015 1,099ebay.com
2.
 
Nikon D71005/5+ +..85/1004.5/54.5/5 Feb 2013 1,199ebay.com
3.
 
Canon 70D5/5+ +..83/1004.5/55/5 Jul 2013 1,199ebay.com
4.
 
Nikon D75004.5/5+ +4.5/586/1005/54.5/5 Apr 2017 1,299 amazon.com
5.
 
Nikon D72004/5+ +..84/1004.5/54.5/5 Mar 2015 1,199ebay.com
6.
 
Nikon D33003/5+..77/1004.5/54.5/5 Jan 2014 499ebay.com
7.
 
Nikon D70004/5....80/1004.5/54.5/5 Sep 2010 1,499ebay.com
8.
 
Olympus E-M5 III5/5+5/582/1004.5/54.5/5 Oct 2019 1,199ebay.com
9.
 
Olympus PEN-F....4/582/1004.5/55/5 Jan 2016 1,199ebay.com
10.
 
Olympus E-M10 II4.5/5+ +..80/1005/55/5 Aug 2015 649ebay.com
11.
 
Olympus E-M104/5....80/1005/55/5 Jan 2014 699ebay.com
12.
 
Olympus E-M15/5+ +..84/1004.5/54.5/5 Sep 2013 1,399ebay.com
13.
 
Olympus E-P55/5+ +..78/1004.5/55/5 May 2013 999ebay.com
14.
 
Olympus E-M54/5+ +..80/1004.5/55/5 Feb 2012 1,299ebay.com
15.
 
Panasonic G85..+ +..84/1005/54.5/5 Sep 2016 899ebay.com
16.
 
Panasonic GX854.5/5+ +..82/1005/55/5 Apr 2016 799 amazon.com
17.
 
Panasonic GX85/5+..82/1004.5/54.5/5 Jul 2015 1,199ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.
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Care should be taken when interpreting the review scores above, though. The assessments were made in relation to similar cameras of the same technological generation. 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. Also, please note that some of the review sites have changed their methodology and reporting over time.

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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 make your choice using the following search menu. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Olympus E-M5 II vs Nikon D7100

    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 Olympus E-M5 II Nikon D7100
    Camera Type Mirrorless system camera Digital single lens reflex
    Camera Lens Micro Four Thirds lenses Nikon F mount lenses
    Launch Date February 2015 February 2013
    Launch Price USD 1,099 USD 1,199
    Sensor Specs Olympus E-M5 II Nikon D7100
    Sensor Technology CMOS CMOS
    Sensor Format Four Thirds Sensor APS-C Sensor
    Sensor Size 17.3 x 13.0 mm 23.5 x 15.6 mm
    Sensor Area 224.9 mm2 366.6 mm2
    Sensor Diagonal 21.6 mm 28.2 mm
    Crop Factor 2.0x 1.5x
    Sensor Resolution 15.9 Megapixels 24 Megapixels
    Image Resolution 4608 x 3456 pixels 6000 x 4000 pixels
    Pixel Pitch 3.76 μm 3.91 μm
    Pixel Density 7.08 MP/cm2 6.55 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability 1080/60p Video 1080/60p Video
    ISO Setting 200 - 25,600 ISO 100 - 6,400 ISO
    ISO Boost 100 - 25,600 ISO 50 - 25,600 ISO
    Image Processor TruePic VII EXPEED 4
    DXO Sensor Quality (score) 73 83
    DXO Color Depth (bits) 23.0 24.2
    DXO Dynamic Range (EV) 12.5 13.7
    DXO Low Light (ISO) 842 1256
    Screen Specs Olympus E-M5 II Nikon D7100
    Viewfinder Type Electronic viewfinder Optical viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.74x 0.63x
    Viewfinder Resolution 2360k dots
    Top-Level Screen no Top Display Control Panel
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.2inch
    LCD Resolution 1037k dots 1229k dots
    LCD Attachment Swivel screen Fixed screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Olympus E-M5 II Nikon D7100
    Focus System Contrast-detect AF Phase-detect AF
    Manual Focusing AidFocus Peakingno Peaking Feature
    Continuous Shooting 10 shutter flaps/s 6 shutter flaps/s
    Electronic Shutterup to 1/16000sno E-Shutter
    Time-Lapse PhotographyIntervalometer built-inIntervalometer built-in
    Image StabilizationIn-body stabilizationLens stabilization only
    Fill Flash no On-Board Flash Built-in Flash
    Storage Medium SDXC cards SDXC cards
    Single or Dual Card Slots Single card slot Dual card slots
    UHS card support UHS-II UHS-I
    Connectivity Specs Olympus E-M5 II Nikon D7100
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket no PC Sync
    USB Connector USB 2.0 USB 2.0
    HDMI Port micro HDMI mini HDMI
    Microphone Port External MIC port External MIC port
    Headphone Socket no Headphone port Headphone port
    Wifi Support Wifi built-in no Wifi
    Body Specs Olympus E-M5 II Nikon D7100
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type Olympus BLN-1 Nikon EN-EL15
    Battery Life (CIPA)310 shots per charge950 shots per charge
    Body Dimensions 124 x 85 x 45 mm
    (4.9 x 3.3 x 1.8 in)
    136 x 107 x 76 mm
    (5.4 x 4.2 x 3.0 in)
    Camera Weight 469 g (16.5 oz) 765 g (27.0 oz)
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