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Nikon D5100 vs Olympus E-PM2

The Nikon D5100 and the Olympus PEN E-PM2 are two digital cameras that were revealed to the public, respectively, in April 2011 and September 2012. The D5100 is a DSLR, while the E-PM2 is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (D5100) and a Four Thirds (E-PM2) sensor. The Nikon has a resolution of 16.1 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 D5100
versus
Olympus E-PM2
Nikon D5100   Olympus E-PM2
Digital single lens reflex Mirrorless system camera
Nikon F mount lenses Micro Four Thirds lenses
16.1 MP – APS-C sensor 15.9 MP – Four Thirds sensor
1080/30p Video 1080/30p Video
ISO 100-6,400 (100 - 25,600) ISO 100-25,600
Optical viewfinder Viewfinder optional
3.0" LCD – 921k dots 3.0" LCD – 460k dots
Swivel screen (not touch-sensitive) Fixed touchscreen
4 shutter flaps per second 8 shutter flaps per second
Lens stabilization onlyIn-body stabilization
660 shots per battery charge360 shots per battery charge
128 x 97 x 79 mm, 560 g 110 x 64 x 34 mm, 269 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon D5100 and the Olympus PEN E-PM2? 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 Nikon D5100 and the Olympus E-PM2 are illustrated in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All width, height and depth measures are rounded to the nearest millimeter.

The E-PM2 can be obtained in four different colors (black, silver, red, white), while the D5100 is only available in black.

Size Nikon D5100 vs Olympus E-PM2
Compare D5100 versus E-PM2 top
Comparison D5100 or E-PM2 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Olympus E-PM2 is considerably smaller (43 percent) than the Nikon D5100. Moreover, the E-PM2 is substantially lighter (52 percent) than the D5100. In this context, it is worth noting that neither the D5100 nor the E-PM2 are weather-sealed.

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 (D5100) and the Micro Four Thirds Lens Catalog (E-PM2). Mirrorless cameras, such as the E-PM2, 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 D5100 gets 660 shots out of its Nikon EN-EL14 battery, while the E-PM2 can take 360 images on a single charge of its Olympus BLS-5 power pack.

The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. If you would like to visualize and compare a different camera combination, you can navigate to the CAM-parator app and make your selection from a broad list of cameras there.

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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.
 
Nikon D5100 128 mm 97 mm 79 mm 560 g 660 n Apr 2011 749ebay.com
2.
 
Olympus E-PM2 110 mm 64 mm 34 mm 269 g 360 n Sep 2012 499ebay.com
3.
 
Canon T2i 129 mm 98 mm 62 mm 530 g 440 n Feb 2010 699ebay.com
4.
 
Nikon D5600 124 mm 97 mm 70 mm 465 g 970 n Nov 2016 699ebay.com
5.
 
Nikon D5500 124 mm 97 mm 70 mm 470 g 820 n Jan 2015 899ebay.com
6.
 
Nikon D5300 125 mm 98 mm 76 mm 480 g 600 n Oct 2013 799ebay.com
7.
 
Nikon D3200 125 mm 96 mm 77 mm 505 g 540 n Apr 2012 599ebay.com
8.
 
Nikon D5200 129 mm 98 mm 78 mm 555 g 500 n Nov 2012 749ebay.com
9.
 
Nikon D7000 132 mm 105 mm 77 mm 780 g 1050 Y Sep 2010 1,499ebay.com
10.
 
Nikon D3100 124 mm 96 mm 75 mm 505 g 550 n Aug 2010 599ebay.com
11.
 
Nikon D5000 127 mm 104 mm 80 mm 590 g 510 n Apr 2009 749ebay.com
12.
 
Olympus E-M10 II 120 mm 83 mm 47 mm 390 g 320 n Aug 2015 649ebay.com
13.
 
Olympus E-P5 122 mm 69 mm 37 mm 420 g 330 n May 2013 999ebay.com
14.
 
Olympus E-PL6 111 mm 64 mm 38 mm 325 g 360 n May 2013 599ebay.com
15.
 
Olympus E-PL5 111 mm 64 mm 38 mm 325 g 360 n Sep 2012 599ebay.com
16.
 
Olympus E-PM1 110 mm 64 mm 34 mm 265 g 330 n Jun 2011 499ebay.com
17.
 
Sony NEX-5N 111 mm 59 mm 38 mm 269 g 460 n Aug 2011 699ebay.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 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-PM2 was launched at a markedly lower price (by 33 percent) than the D5100, 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 sensor inside a digital camera is one of the key determinants 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. Further, a large sensor camera will give the photographer additional creative options when using shallow depth-of-field to isolate a subject from its 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 D5100 features an APS-C sensor and the Olympus E-PM2 a Four Thirds sensor. The sensor area in the E-PM2 is 39 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 D5100 has a native 3:2 aspect ratio, while the one in the E-PM2 offers a 4:3 aspect.

Nikon D5100 and Olympus E-PM2 sensor measures

With 16.1MP, the D5100 offers a slightly higher resolution than the E-PM2 (15.9MP), but the D5100 nevertheless has larger individual pixels (pixel pitch of 4.80μm versus 3.76μm for the E-PM2) due to its larger sensor. However, the E-PM2 is a somewhat more recent model (by 1 year and 5 months) than the D5100, and its sensor might have benefitted from technological advances during this time that enhance the light gathering capacity of its pixels.

The Nikon D5100 has a native sensitivity range from ISO 100 to ISO 6400, which can be extended to ISO 100-25600. The corresponding ISO settings for the Olympus PEN E-PM2 are ISO 100 to ISO 25600 (no boost).

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.

D5100 versus E-PM2 MP

Consistent information on actual sensor performance is available from DXO Mark for many cameras. This service assesses and scores the color depth ("DXO Portrait"), dynamic range ("DXO Landscape"), and low-light sensitivity ("DXO Sports") of camera sensors, and also publishes an overall camera score. Of the two cameras under review, the D5100 has a notably higher overall DXO score than the E-PM2 (overall score 8 points higher), which gives it an advantage in terms of imaging quality. This advantage is based on 0.8 bits higher color depth, 1.4 EV in additional dynamic range, and 0.3 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
# image Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Nikon D5100 APS-C 16.1 4928 32641080/30p23.513.6118380
2.
 
Olympus E-PM2 Four Thirds 15.9 4608 34561080/30p22.712.293272
3.
 
Canon T2i APS-C 17.9 5184 34561080/30p22.111.578466
4.
 
Nikon D5600 APS-C 24.0 6000 40001080/60p24.114.0130684
5.
 
Nikon D5500 APS-C 24.0 6000 40001080/60p24.114.0143884
6.
 
Nikon D5300 APS-C 24.0 6000 40001080/60p24.013.9133883
7.
 
Nikon D3200 APS-C 24.1 6016 40001080/30p24.113.2113181
8.
 
Nikon D5200 APS-C 24.0 6000 40001080/60i24.213.9128484
9.
 
Nikon D7000 APS-C 16.1 4928 32641080/24p23.513.9116780
10.
 
Nikon D3100 APS-C 14.2 4608 30721080/24p22.511.391967
11.
 
Nikon D5000 APS-C 12.2 4288 2848720/24p22.712.586872
12.
 
Olympus E-M10 II Four Thirds 15.9 4608 34561080/60p23.112.584273
13.
 
Olympus E-P5 Four Thirds 15.9 4608 34561080/30p22.812.489572
14.
 
Olympus E-PL6 Four Thirds 15.9 4608 34561080/30p22.512.071768
15.
 
Olympus E-PL5 Four Thirds 15.9 4608 34561080/30p22.812.388972
16.
 
Olympus E-PM1 Four Thirds 12.2 4032 30241080/60i21.010.349952
17.
 
Sony NEX-5N APS-C 16.0 4912 32641080/60i23.612.7107977
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. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, and both provide the same movie specifications (1080/30p).

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Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. For example, the D5100 has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the E-PM2 relies on live view and the rear LCD for framing. That said, the E-PM2 can be equipped with an optional viewfinder – the VF-4. The following table reports on some other key feature differences and similarities of the Nikon D5100, the Olympus E-PM2, 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.
 
Nikon D5100optical n3.0 / 921 swivel n 1/4000s 4.0/s Y n
2.
 
Olympus E-PM2optional n3.0 / 460 fixed Y 1/4000s 8.0/s n Y
3.
 
Canon T2ioptical n3.0 / 1040 fixed n 1/4000s 3.7/s Y n
4.
 
Nikon D5600optical n3.2 / 1037 swivel Y 1/4000s 5.0/s Y n
5.
 
Nikon D5500optical n3.2 / 1037 swivel Y 1/4000s 5.0/s Y n
6.
 
Nikon D5300optical n3.2 / 1037 swivel n 1/4000s 5.0/s Y n
7.
 
Nikon D3200optical n3.0 / 921 fixed n 1/4000s 4.0/s Y n
8.
 
Nikon D5200optical n3.0 / 921 swivel n 1/4000s 5.0/s Y n
9.
 
Nikon D7000optical Y3.0 / 921 fixed n 1/8000s 6.0/s Y n
10.
 
Nikon D3100optical n3.0 / 230 fixed n 1/4000s 3.0/s Y n
11.
 
Nikon D5000optical n2.7 / 230 full-flex n 1/4000s 4.0/s Y n
12.
 
Olympus E-M10 II2360 n3.0 / 1040 tilting Y 1/4000s 8.0/s Y Y
13.
 
Olympus E-P5optional n3.0 / 1037 tilting Y 1/8000s 9.0/s Y Y
14.
 
Olympus E-PL6optional n3.0 / 460 tilting Y 1/4000s 8.0/s n Y
15.
 
Olympus E-PL5optional n3.0 / 460 tilting Y 1/4000s 8.0/s n Y
16.
 
Olympus E-PM1optional n3.0 / 460 fixed n 1/4000s 5.5/s n Y
17.
 
Sony NEX-5Noptional n3.0 / 920 tilting Y 1/4000s 10.0/s n n
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.
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One difference between the cameras concerns the presence of an on-board flash. The D5100 has one, while the E-PM2 does not. While the built-in flash of the D5100 is not very powerful, it can at times be useful as a fill-in light.

The D5100 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 E-PM2 does not have a selfie-screen.

The Nikon D5100 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.

Concerning the storage of imaging data, both the D5100 and the E-PM2 write their files to SDXC cards. 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 D5100 and Olympus PEN E-PM2 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.
 
Nikon D5100Ymono / monoY-mini2.0---
2.
 
Olympus E-PM2Ystereo / mono--mini2.0---
3.
 
Canon T2iYstereo / -Y-mini2.0---
4.
 
Nikon D5600Ystereo / monoY-mini2.0YYY
5.
 
Nikon D5500Ystereo / monoY-mini2.0Y--
6.
 
Nikon D5300Ystereo / monoY-mini2.0Y--
7.
 
Nikon D3200Ymono / monoY-mini2.0---
8.
 
Nikon D5200Ystereo / monoY-mini2.0---
9.
 
Nikon D7000Ymono / monoY-mini2.0---
10.
 
Nikon D3100Ymono / mono--mini2.0---
11.
 
Nikon D5000Ymono / mono--mini2.0---
12.
 
Olympus E-M10 IIYstereo / mono--micro2.0Y--
13.
 
Olympus E-P5Ystereo / mono--micro2.0Y--
14.
 
Olympus E-PL6Ystereo / mono--mini2.0---
15.
 
Olympus E-PL5Ystereo / mono--mini2.0---
16.
 
Olympus E-PM1Ystereo / mono--mini2.0---
17.
 
Sony NEX-5NYstereo / mono--mini2.0---
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It is notable that the D5100 has a microphone port, which is missing on the E-PM2. Such an external microphone input can help to substantially improve the quality of audio recordings when a good external microphone is used.

Both the D5100 and the E-PM2 have been discontinued, but can regularly be found used on ebay. The D5100 was replaced by the Nikon D5200, while the E-PM2 does not have a direct successor. Further information on the features and operation of the D5100 and E-PM2 can be found, respectively, in the Nikon D5100 Manual (free pdf) or the online Olympus E-PM2 Manual.

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Review summary

So what conclusions can be drawn? Which of the two cameras – the Nikon D5100 or the Olympus E-PM2 – 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 D5100:

  • Better image quality: Scores markedly higher (8 points) in the DXO overall assessment.
  • More dynamic range: Captures a larger spectrum of light and dark details (1.4 EV of extra DR).
  • Better low-light sensitivity: Requires less light for good images (0.3 stops ISO advantage).
  • Better sound: Can connect to an external microphone for higher quality sound recording.
  • Easier framing: Has an optical viewfinder for image composition and settings control.
  • More detailed LCD: Has a higher resolution rear screen (921k vs 460k dots).
  • More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • Longer lasting: Can take more shots (660 versus 360) 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 April 2011).

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Arguments in favor of the Olympus PEN E-PM2:

  • Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
  • Faster burst: Shoots at higher frequency (8 vs 4 flaps/sec) to capture the decisive moment.
  • More compact: Is smaller (110x64mm vs 128x97mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 291g or 52 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 (33 percent cheaper at launch).
  • More modern: Was introduced somewhat (1 year and 5 months) more recently.

If the number of relative strengths (bullet points above) is taken as a guide, the D5100 is the clear winner of the match-up (12 : 8 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. 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.

D5100 12:08 E-PM2

How about other alternatives? Do the specifications of the Nikon D5100 and the Olympus E-PM2 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 D5100 or the E-PM2. User reviews that are available, for instance, at amazon can sometimes shed light on these issues, but such feedback is all too often partial, inconsistent, and inaccurate.

Expert reviews

This is why expert reviews are important. The following table reports the overall ratings of the cameras as published by some of the major camera 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.
 
Nikon D51005/5+ +..76/1004.5/54.5/5 Apr 2011 749ebay.com
2.
 
Olympus E-PM23/5....77/1005/54.5/5 Sep 2012 499ebay.com
3.
 
Canon T2i..+ +..77/1004/54.5/5 Feb 2010 699ebay.com
4.
 
Nikon D56004/5..4/579/1004.5/54/5 Nov 2016 699ebay.com
5.
 
Nikon D55005/5+..79/1004.5/54.5/5 Jan 2015 899ebay.com
6.
 
Nikon D53004/5+ +..79/1004.5/54.5/5 Oct 2013 799ebay.com
7.
 
Nikon D32005/5+ +..73/1004.5/54.5/5 Apr 2012 599ebay.com
8.
 
Nikon D52004/5+ +..79/1004.5/54.5/5 Nov 2012 749ebay.com
9.
 
Nikon D70004/5....80/1004.5/54.5/5 Sep 2010 1,499ebay.com
10.
 
Nikon D31005/5+ +..72/1004.5/54.5/5 Aug 2010 599ebay.com
11.
 
Nikon D5000..+ +..75/1004/54.5/5 Apr 2009 749ebay.com
12.
 
Olympus E-M10 II4.5/5+ +..80/1005/55/5 Aug 2015 649ebay.com
13.
 
Olympus E-P55/5+ +..78/1004.5/55/5 May 2013 999ebay.com
14.
 
Olympus E-PL6............ May 2013 599ebay.com
15.
 
Olympus E-PL53/5+ +....4.5/54.5/5 Sep 2012 599ebay.com
16.
 
Olympus E-PM1..86/100..71/1004.5/54.5/5 Jun 2011 499ebay.com
17.
 
Sony NEX-5N3/5+ +..79/1004.5/54.5/5 Aug 2011 699ebay.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. Hence, a score should always be seen in the context of the camera's market launch date and its price, 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.

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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 D5100 vs Olympus E-PM2

    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 D5100 Olympus E-PM2
    Camera Type Digital single lens reflex Mirrorless system camera
    Camera Lens Nikon F mount lenses Micro Four Thirds lenses
    Launch Date April 2011 September 2012
    Launch Price USD 749 USD 499
    Sensor Specs Nikon D5100 Olympus E-PM2
    Sensor Technology CMOS CMOS
    Sensor Format APS-C Sensor Four Thirds Sensor
    Sensor Size 23.6 x 15.7 mm 17.3 x 13.0 mm
    Sensor Area 370.52 mm2 224.9 mm2
    Sensor Diagonal 28.3 mm 21.6 mm
    Crop Factor 1.5x 2.0x
    Sensor Resolution 16.1 Megapixels 15.9 Megapixels
    Image Resolution 4928 x 3264 pixels 4608 x 3456 pixels
    Pixel Pitch 4.80 μm 3.76 μm
    Pixel Density 4.34 MP/cm2 7.08 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability 1080/30p Video 1080/30p Video
    ISO Setting 100 - 6,400 ISO 100 - 25,600 ISO
    ISO Boost 100 - 25,600 ISO no Enhancement
    Image Processor EXPEED 2 TruePic VI
    DXO Sensor Quality (score) 80 72
    DXO Color Depth (bits) 23.5 22.7
    DXO Dynamic Range (EV) 13.6 12.2
    DXO Low Light (ISO) 1183 932
    Screen Specs Nikon D5100 Olympus E-PM2
    Viewfinder Type Optical viewfinder Viewfinder optional
    Viewfinder Field of View 95%
    Viewfinder Magnification 0.51x
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 921k dots 460k dots
    LCD Attachment Swivel screen Fixed screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Nikon D5100 Olympus E-PM2
    Focus System Phase-detect AF Contrast-detect AF
    Continuous Shooting 4 shutter flaps/s 8 shutter flaps/s
    Time-Lapse PhotographyIntervalometer built-inno Intervalometer
    Image StabilizationLens stabilization onlyIn-body stabilization
    Fill Flash Built-in Flash no On-Board Flash
    Storage Medium SDXC cards SDXC cards
    Single or Dual Card Slots Single card slot Single card slot
    UHS card support UHS-I UHS-I
    Connectivity Specs Nikon D5100 Olympus E-PM2
    External Flash Hotshoe Hotshoe
    USB Connector USB 2.0 USB 2.0
    HDMI Port mini HDMI mini HDMI
    Microphone Port External MIC port no MIC socket
    Wifi Support no Wifi no Wifi
    Body Specs Nikon D5100 Olympus E-PM2
    Battery Type Nikon EN-EL14 Olympus BLS-5
    Battery Life (CIPA)660 shots per charge360 shots per charge
    Body Dimensions 128 x 97 x 79 mm
    (5.0 x 3.8 x 3.1 in)
    110 x 64 x 34 mm
    (4.3 x 2.5 x 1.3 in)
    Camera Weight 560 g (19.8 oz) 269 g (9.5 oz)
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