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Nikon D300 vs Olympus E-M5

The Nikon D300 and the Olympus OM-D E-M5 are two enthusiast cameras that were officially introduced, respectively, in August 2007 and February 2012. The D300 is a DSLR, while the E-M5 is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (D300) and a Four Thirds (E-M5) 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 D300
versus
Olympus E-M5
Nikon D300   Olympus E-M5
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
no Video 1080/60i Video
ISO 200-3,200 (100 - 6,400) ISO 200-25,600
Optical viewfinder Electronic viewfinder (1440k dots)
3.0" LCD – 922k dots 3.0" LCD – 610k dots
Fixed screen (not touch-sensitive) Tilting touchscreen
6 shutter flaps per second 9 shutter flaps per second
Lens stabilization onlyIn-body stabilization
Weathersealed bodyWeathersealed body
1000 shots per battery charge360 shots per battery charge
147 x 114 x 74 mm, 925 g 122 x 89 x 43 mm, 425 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon D300 and the Olympus OM-D E-M5? 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 D300 and the Olympus E-M5 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 dimensions are rounded to the nearest millimeter.

The E-M5 can be obtained in two different colors (black, silver), while the D300 is only available in black.

Size Nikon D300 vs Olympus E-M5
Compare D300 versus E-M5 top
Comparison D300 or E-M5 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 is considerably smaller (35 percent) than the Nikon D300. Moreover, the E-M5 is substantially lighter (54 percent) than the D300. 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 Nikon Lens Catalog (D300) and the Micro Four Thirds Lens Catalog (E-M5). Mirrorless cameras, such as the E-M5, 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 D300 gets 1000 shots out of its EN-EL3e battery, while the E-M5 can take 360 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. 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
    Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Nikon D300 147 mm 114 mm 74 mm 925 g 1000 Y Aug 2007 1,799ebay.com
2.
 
Olympus E-M5 122 mm 89 mm 43 mm 425 g 360 Y Feb 2012 1,299ebay.com
3.
 
Nikon D500 147 mm 115 mm 81 mm 860 g 1240 Y Jan 2016 1,999 amazon.com
4.
 
Nikon D7000 132 mm 105 mm 77 mm 780 g 1050 Y Sep 2010 1,499ebay.com
5.
 
Nikon D300S 147 mm 115 mm 81 mm 938 g 950 Y Jul 2009 1,799ebay.com
6.
 
Nikon D60 126 mm 94 mm 64 mm 522 g 500 n Jan 2008 629ebay.com
7.
 
Nikon D90 132 mm 103 mm 77 mm 703 g 850 n Aug 2008 1,299ebay.com
8.
 
Nikon D700 147 mm 123 mm 77 mm 1074 g 1000 Y Jul 2008 2,999ebay.com
9.
 
Nikon D3 160 mm 157 mm 88 mm 1300 g 4300 Y Aug 2007 4,999ebay.com
10.
 
Nikon D2Xs 158 mm 150 mm 86 mm 1252 g 3800 Y Jun 2006 4,699ebay.com
11.
 
Nikon D200 147 mm 113 mm 74 mm 920 g 400 Y Nov 2005 1,699ebay.com
12.
 
Olympus E-M5 II 124 mm 85 mm 45 mm 469 g 310 Y Feb 2015 1,099ebay.com
13.
 
Olympus E-M10 II 120 mm 83 mm 47 mm 390 g 320 n Aug 2015 649ebay.com
14.
 
Olympus E-M10 119 mm 82 mm 46 mm 396 g 320 n Jan 2014 699ebay.com
15.
 
Olympus E-M1 130 mm 94 mm 63 mm 497 g 350 Y Sep 2013 1,399ebay.com
16.
 
Olympus E-P5 122 mm 69 mm 37 mm 420 g 330 n May 2013 999ebay.com
17.
 
Olympus E-3 142 mm 116 mm 75 mm 876 g 750 Y Oct 2007 1,699ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.

The price is, of course, an important factor in any camera decision. The retail prices at the time of the camera’s release place the model in the market relative to other models in the producer’s line-up and the competition. The E-M5 was launched at a markedly lower price (by 28 percent) than the D300, 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. A large sensor will generally have larger individual pixels that offer better low-light sensitivity, provide wider dynamic range, and have richer color-depth than smaller pixels in a sensor of the same technological generation. Furthermore, a large sensor camera will give the photographer more possibilities to use shallow depth-of-field in order to isolate a subject from the background. On the downside, larger sensors tend to be associated with larger, more expensive camera bodies and lenses.

Of the two cameras under consideration, the Nikon D300 features an APS-C sensor and the Olympus E-M5 a Four Thirds sensor. The sensor area in the E-M5 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 D300 has a native 3:2 aspect ratio, while the one in the E-M5 offers a 4:3 aspect.

Nikon D300 and Olympus E-M5 sensor measures

Despite having a smaller sensor, the E-M5 offers a higher resolution of 15.9 megapixels, compared with 12.2 MP of the D300. 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 D300). However, it should be noted that the E-M5 is much more recent (by 4 years and 5 months) than the D300, 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 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the E-M5 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 D300 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.

The Nikon D300 has a native sensitivity range from ISO 200 to ISO 3200, which can be extended to ISO 100-6400. The corresponding ISO settings for the Olympus OM-D E-M5 are ISO 200 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.

D300 versus E-M5 MP

Consistent information on actual sensor performance is available from DXO Mark for many cameras. This service is based on lab testing and assigns an overall score to each camera sensor, as well as ratings for dynamic range ("DXO Landscape"), color depth ("DXO Portrait"), and low-light sensitivity ("DXO Sports"). Of the two cameras under consideration, the E-M5 has a markedly higher DXO score than the D300 (overall score 4 points higher), which will translate into better image quality. The advantage is based on 0.7 bits higher color depth, 0.3 EV in additional dynamic range, and 0.3 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
    Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Nikon D300 APS-C 12.2 4288 2848none22.112.067967
2.
 
Olympus E-M5 Four Thirds 15.9 4608 34561080/60i22.812.382671
3.
 
Nikon D500 APS-C 20.7 5568 37124K/30p24.014.0132483
4.
 
Nikon D7000 APS-C 16.1 4928 32641080/24p23.513.9116780
5.
 
Nikon D300S APS-C 12.2 4288 2848720/24p22.512.278770
6.
 
Nikon D60 APS-C 10.0 3872 2592none22.511.456265
7.
 
Nikon D90 APS-C 12.2 4288 2848720/24p22.712.597773
8.
 
Nikon D700 Full Frame 12.1 4256 2832none23.512.2230380
9.
 
Nikon D3 Full Frame 12.1 4256 2832none23.512.2229081
10.
 
Nikon D2Xs APS-C 12.2 4288 2848none22.210.948959
11.
 
Nikon D200 APS-C 10.0 3872 2592none22.311.558364
12.
 
Olympus E-M5 II Four Thirds 15.9 4608 34561080/60p23.012.584273
13.
 
Olympus E-M10 II Four Thirds 15.9 4608 34561080/60p23.112.584273
14.
 
Olympus E-M10 Four Thirds 15.9 4608 34561080/30p22.812.388472
15.
 
Olympus E-M1 Four Thirds 15.9 4608 34561080/30p23.012.775773
16.
 
Olympus E-P5 Four Thirds 15.9 4608 34561080/30p22.812.489572
17.
 
Olympus E-3 Four Thirds 10.0 3648 2736none21.610.557156

Many modern cameras cannot only take still pictures, but also record videos. The E-M5 indeed provides for movie recording, while the D300 does not. The highest resolution format that the E-M5 can use is 1080/60i.

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the E-M5 has an electronic viewfinder (1440k dots), while the D300 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 D300 has a higher magnification than the one of the E-M5 (0.63x vs 0.58x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The adjacent table lists some of the other core features of the Nikon D300 and Olympus E-M5 along with similar information for a selection of comparators.

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Core Features
    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 D300optical Y3.0 / 922 fixed n 1/8000s 6.0/s Y n
2.
 
Olympus E-M51440 n3.0 / 610 tilting Y 1/4000s 9.0/s n Y
3.
 
Nikon D500optical Y3.2 / 2359 tilting Y 1/8000s 10.0/s n n
4.
 
Nikon D7000optical Y3.0 / 921 fixed n 1/8000s 6.0/s Y n
5.
 
Nikon D300Soptical Y3.0 / 920 fixed n 1/8000s 7.0/s Y n
6.
 
Nikon D60optical n2.5 / 230 fixed n 1/4000s 3.0/s Y n
7.
 
Nikon D90optical Y3.0 / 920 fixed n 1/4000s 4.5/s Y n
8.
 
Nikon D700optical Y3.0 / 922 fixed n 1/8000s 8.0/s Y n
9.
 
Nikon D3optical Y3.0 / 922 fixed n 1/8000s 11.0/s n n
10.
 
Nikon D2Xsoptical Y2.5 / 230 fixed n 1/8000s 5.0/s n n
11.
 
Nikon D200optical Y2.5 / 230 fixed n 1/8000s 5.0/s Y n
12.
 
Olympus E-M5 II2360 n3.0 / 1037 swivel Y 1/8000s 10.0/s n Y
13.
 
Olympus E-M10 II2360 n3.0 / 1040 tilting Y 1/4000s 8.0/s Y Y
14.
 
Olympus E-M101440 n3.0 / 1037 tilting Y 1/4000s 8.0/s Y Y
15.
 
Olympus E-M12360 n3.0 / 1037 tilting Y 1/8000s 10.0/s n Y
16.
 
Olympus E-P5optional n3.0 / 1037 tilting Y 1/8000s 9.0/s Y Y
17.
 
Olympus E-3optical Y2.5 / 230 swivel n 1/8000s 5.0/s Y Y
Notes: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One difference between the cameras concerns the presence of an on-board flash. The D300 has one, while the E-M5 does not. While the built-in flash of the D300 is not very powerful, it can at times be useful as a fill-in light.

The Nikon D300 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 D300 writes its imaging data to Compact Flash cards, while the E-M5 uses SDXC 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 D300 and Olympus OM-D E-M5 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
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Nikon D300Y- / ---mini2.0---
2.
 
Olympus E-M5Ystereo / mono--mini2.0---
3.
 
Nikon D500Ystereo / monoYYmini3.0YYY
4.
 
Nikon D7000Ymono / monoY-mini2.0---
5.
 
Nikon D300SYstereo / monoY-mini2.0---
6.
 
Nikon D60Y- / ----2.0---
7.
 
Nikon D90Ymono / mono--mini2.0---
8.
 
Nikon D700Y- / ---mini2.0---
9.
 
Nikon D3Y- / ---mini2.0---
10.
 
Nikon D2XsY- / ----2.0---
11.
 
Nikon D200Y- / ----2.0---
12.
 
Olympus E-M5 IIYstereo / monoY-micro2.0Y--
13.
 
Olympus E-M10 IIYstereo / mono--micro2.0Y--
14.
 
Olympus E-M10Ystereo / mono--micro2.0Y--
15.
 
Olympus E-M1Ystereo / monoY-micro2.0Y--
16.
 
Olympus E-P5Ystereo / mono--micro2.0Y--
17.
 
Olympus E-3Y- / ----2.0---

Studio photographers will appreciate that the Nikon D300 (unlike the E-M5) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the D300 and the E-M5 have been discontinued, but can regularly be found used on ebay. The D300 was replaced by the Nikon D300S, while the E-M5 was followed by the Olympus E-M5 II. Further information on the features and operation of the D300 and E-M5 can be found, respectively, in the Nikon D300 Manual (free pdf) or the online Olympus E-M5 Manual.

Review summary

So what is the bottom line? Which of the two cameras – the Nikon D300 or the Olympus E-M5 – has the upper hand? Is one clearly better than the other? The listing below highlights the relative strengths of the two models.

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Advantages of the Nikon D300:

  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.63x vs 0.58x).
  • Easier setting verification: Features an LCD display on top to control shooting parameters.
  • More detailed LCD: Has a higher resolution rear screen (922k vs 610k dots).
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • Longer lasting: Can take more shots (1000 versus 360) on a single battery charge.
  • Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
  • Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
  • More heavily discounted: Has been available for much longer (launched in August 2007).

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

  • More detail: Has more megapixels (15.9 vs 12.2MP), which boosts linear resolution by 12%.
  • Better image quality: Scores markedly higher (4 points) in the DXO overall evaluation.
  • Broader imaging potential: Can capture not only stills but also 1080/60i video.
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
  • Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
  • Faster burst: Shoots at higher frequency (9 vs 6 flaps/sec) to capture the decisive moment.
  • More compact: Is smaller (122x89mm vs 147x114mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 500g or 54 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 (28 percent cheaper at launch).
  • More modern: Reflects 4 years and 5 months of technical progress since the D300 launch.

If the number of relative strengths (bullet points above) is taken as a guide, the E-M5 emerges as the winner of the match-up (13 : 10 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.

D300 10:13 E-M5

How about other alternatives? Do the specifications of the Nikon D300 and the Olympus E-M5 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 the spec-sheets of cameras can offer a general idea of their imaging potential, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the D300 or the E-M5. 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 (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
     Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Nikon D300..+ +..+ +5/54.5/5 Aug 2007 1,799ebay.com
2.
 
Olympus E-M54/5+ +..80/1004.5/55/5 Feb 2012 1,299ebay.com
3.
 
Nikon D5005/5+ +4.7/591/1004.5/55/5 Jan 2016 1,999 amazon.com
4.
 
Nikon D70004/5....80/1004.5/54.5/5 Sep 2010 1,499ebay.com
5.
 
Nikon D300S5/5+ +..82/1004/54.5/5 Jul 2009 1,799ebay.com
6.
 
Nikon D60..80/100..+ +4/54.5/5 Jan 2008 629ebay.com
7.
 
Nikon D90..+ +..+ +4/54.5/5 Aug 2008 1,299ebay.com
8.
 
Nikon D700..89/100..+ +4.5/54.5/5 Jul 2008 2,999ebay.com
9.
 
Nikon D3......+ +5/54.5/5 Aug 2007 4,999ebay.com
10.
 
Nikon D2Xs............ Jun 2006 4,699ebay.com
11.
 
Nikon D200..+ +..+ +o.. Nov 2005 1,699ebay.com
12.
 
Olympus E-M5 II5/5+ +4.5/581/1005/55/5 Feb 2015 1,099ebay.com
13.
 
Olympus E-M10 II4.5/5+ +..80/1005/55/5 Aug 2015 649ebay.com
14.
 
Olympus E-M104/5....80/1005/55/5 Jan 2014 699ebay.com
15.
 
Olympus E-M15/5+ +..84/1004.5/54.5/5 Sep 2013 1,399ebay.com
16.
 
Olympus E-P55/5+ +..78/1004.5/55/5 May 2013 999ebay.com
17.
 
Olympus E-3..88/100..+ +o4/5 Oct 2007 1,699ebay.com
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. Hence, a score should always be seen in the context of the camera's market launch date and its price, 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? If you would like to see a different side-by-side camera review, just use the search menu below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Nikon D300 vs Olympus E-M5

    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 D300 Olympus E-M5
    Camera Type Digital single lens reflex Mirrorless system camera
    Camera Lens Nikon F mount lenses Micro Four Thirds lenses
    Launch Date August 2007 February 2012
    Launch Price USD 1,799 USD 1,299
    Sensor Specs Nikon D300 Olympus E-M5
    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 no Video 1080/60i Video
    ISO Setting 200 - 3,200 ISO 200 - 25,600 ISO
    ISO Boost 100 - 6,400 ISO no Enhancement
    Image Processor EXPEED TruePic VI
    DXO Sensor Quality (score) 67 71
    DXO Color Depth (bits) 22.1 22.8
    DXO Dynamic Range (EV) 12.0 12.3
    DXO Low Light (ISO) 679 826
    Screen Specs Nikon D300 Olympus E-M5
    Viewfinder Type Optical viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.63x 0.58x
    Viewfinder Resolution 1440k dots
    Top-Level Screen Control Panel no Top Display
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 922k dots 610k dots
    LCD Attachment Fixed screen Tilting screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Nikon D300 Olympus E-M5
    Focus System Phase-detect AF Contrast-detect AF
    Continuous Shooting 6 shutter flaps/s 9 shutter flaps/s
    Shutter Life Expectancy150 000 actuations100 000 actuations
    Time-Lapse PhotographyIntervalometer built-inno Intervalometer
    Image StabilizationLens stabilization onlyIn-body stabilization
    Fill Flash Built-in Flash no On-Board Flash
    Storage Medium CF cards SDXC cards
    Single or Dual Card Slots Single card slot Single card slot
    Connectivity Specs Nikon D300 Olympus E-M5
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket no PC Sync
    USB Connector USB 2.0 USB 2.0
    HDMI Port mini HDMI mini HDMI
    Wifi Support no Wifi no Wifi
    Body Specs Nikon D300 Olympus E-M5
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type EN-EL3e BLN-1
    Battery Life (CIPA)1000 shots per charge360 shots per charge
    Body Dimensions 147 x 114 x 74 mm
    (5.8 x 4.5 x 2.9 in)
    122 x 89 x 43 mm
    (4.8 x 3.5 x 1.7 in)
    Camera Weight 925 g (32.6 oz) 425 g (15.0 oz)
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