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Nikon D3X vs Panasonic GH3

The Nikon D3X and the Panasonic Lumix DMC-GH3 are two digital cameras that were revealed to the public, respectively, in December 2008 and September 2012. The D3X is a DSLR, while the GH3 is a mirrorless interchangeable lens camera. The cameras are based on a full frame (D3X) and a Four Thirds (GH3) sensor. The Nikon has a resolution of 24.4 megapixels, whereas the Panasonic 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 D3X versus Panasonic GH3
Nikon D3X Panasonic GH3
Digital single lens reflex Mirrorless system camera
Nikon F mount lenses Micro Four Thirds lenses
24.4 MP, Full Frame Sensor 15.9 MP, Four Thirds Sensor
no Video 1080/60p Video
ISO 100-1,600 (50 - 6,400) ISO 200-12,800 (125 - 25,600)
Optical viewfinder Electronic viewfinder (1746k dots)
3.0 LCD, 922k dots 3.0 LCD, 614k dots
Fixed screen (not touch-sensitive) Swivel touchscreen
5 shutter flaps per second 6 shutter flaps per second
Weathersealed bodyWeathersealed body
4400 shots per battery charge540 shots per battery charge
160 x 157 x 88 mm, 1260 g 133 x 93 x 82 mm, 550 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon D3X and the Panasonic Lumix DMC-GH3? 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

The side-by-side display below illustrates the physical size and weight of the Nikon D3X and the Panasonic GH3. 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.

Size Nikon D3X vs Panasonic GH3
Compare D3X versus GH3 top
Comparison D3X or GH3 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Panasonic GH3 is considerably smaller (51 percent) than the Nikon D3X. Moreover, the GH3 is substantially lighter (56 percent) than the D3X. 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 (D3X) and the Micro Four Thirds Lens Catalog (GH3). Mirrorless cameras, such as the GH3, 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 D3X gets 4400 shots out of its EN-EL4a battery, while the GH3 can take 540 images on a single charge of its DMW-BLF19 power pack. As can be seen in the images above, the D3X has a battery grip built in. This facilitates image-taking in portrait orientation and gives it additional battery power. In order to provide similar functionality for the GH3, Panasonic provides the DMW-BGGH3 vertical grip as an optional accessory (see here on eBay).

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, just click on the right or left arrow next to the camera that you would like to inspect. Alternatively, you can also use the CAM-parator to select your camera combination among a larger number of options.

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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 D3X 6.3 in 6.2 in 3.5 in 44.4 oz 4400 Y Dec 2008 7,999i
 
Panasonic GH3 5.2 in 3.7 in 3.2 in 19.4 oz 540 Y Sep 2012 1,299i
 
Canon 1Ds Mark III 5.9 in 6.3 in 3.1 in 48.9 oz 1800 Y Aug 2007 7,999i
 
Nikon D6 6.3 in 6.4 in 3.6 in 44.8 oz 3580 Y Feb 2020 6,499 i
 
Nikon D5 6.3 in 6.3 in 3.6 in 49.9 oz 3780 Y Jan 2016 6,499i
 
Nikon D4S 6.3 in 6.2 in 3.6 in 47.6 oz 3020 Y Feb 2014 6,499i
 
Nikon D750 5.6 in 4.4 in 3.1 in 26.5 oz 1230 Y Sep 2014 2,299i
 
Nikon D4 6.3 in 6.2 in 3.6 in 47.3 oz 2600 Y Jan 2012 5,999i
 
Nikon D600 5.6 in 4.4 in 3.2 in 30.0 oz 900 Y Sep 2012 2,099i
 
Nikon D3S 6.3 in 6.2 in 3.5 in 43.7 oz 4200 Y Oct 2009 5,199i
 
Nikon D700 5.8 in 4.8 in 3.0 in 37.9 oz 1000 Y Jul 2008 2,999i
 
Nikon D3 6.3 in 6.2 in 3.5 in 45.9 oz 4300 Y Aug 2007 4,999i
 
Olympus E-M5 II 4.9 in 3.3 in 1.8 in 16.5 oz 310 Y Feb 2015 1,099i
 
Olympus E-M1 5.1 in 3.7 in 2.5 in 17.5 oz 350 Y Sep 2013 1,399i
 
Panasonic GH4 5.2 in 3.7 in 3.3 in 19.8 oz 500 Y Feb 2014 1,499i
 
Panasonic G6 4.8 in 3.3 in 2.8 in 13.8 oz 340 n Apr 2013 599i
 
Panasonic GH2 4.9 in 3.5 in 3.0 in 15.6 oz 330 n Sep 2010 899i
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 GH3 was launched at a markedly lower price (by 84 percent) than the D3X, 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.

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Sensor comparison

The size of the imaging sensor is a crucial determinant of image quality. A large sensor will tend to have larger individual pixels that provide better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixel-units in a sensor of the same technological generation. Moreover, a large sensor camera will give the photographer more control over depth-of-field in the image and, thus, the ability to better isolate a subject from the background. On the downside, larger sensors tend to be more expensive and lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Nikon D3X features a full frame sensor and the Panasonic GH3 a Four Thirds sensor. The sensor area in the GH3 is 74 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.0 and 2.0. The sensor in the D3X has a native 3:2 aspect ratio, while the one in the GH3 offers a 4:3 aspect.

In terms of underlying technology, both cameras are build around CMOS sensors.

Nikon D3X and Panasonic GH3 sensor measures

With 24.4MP, the D3X offers a higher resolution than the GH3 (15.9MP), but the D3X nevertheless has larger individual pixels (pixel pitch of 5.94μm versus 3.76μm for the GH3) due to its larger sensor. However, the GH3 is a much more recent model (by 3 years and 9 months) than the D3X, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixels.

The resolution advantage of the Nikon D3X implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the D3X for good quality output (200 dots per inch) amounts to 30.2 x 20.2 inches or 76.8 x 51.2 cm, for very good quality (250 dpi) 24.2 x 16.1 inches or 61.4 x 41 cm, and for excellent quality (300 dpi) 20.2 x 13.4 inches or 51.2 x 34.1 cm. The corresponding values for the Panasonic GH3 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.

The Nikon D3X has a native sensitivity range from ISO 100 to ISO 1600, which can be extended to ISO 50-6400. The corresponding ISO settings for the Panasonic Lumix DMC-GH3 are ISO 200 to ISO 12800, with the possibility to increase the ISO range to 125-25600.

D3X versus GH3 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 review, the D3X provides substantially higher image quality than the GH3, with an overall score that is 17 points higher. This advantage is based on 2 bits higher color depth, 1.3 EV in additional dynamic range, and 1.3 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
  Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
 
Nikon D3X Full Frame 24.4 6048 4032none24.713.7199288
 
Panasonic GH3 Four Thirds 15.9 4608 34561080/60p22.712.481271
 
Canon 1Ds Mark III Full Frame 21.0 5616 3744none24.012.0166380
 
Nikon D6 Full Frame 20.7 5568 37124K/30p........
 
Nikon D5 Full Frame 20.7 5588 37124K/30p25.112.3234388
 
Nikon D4S Full Frame 16.2 4928 32801080/60p24.413.3307489
 
Nikon D750 Full Frame 24.2 6016 40161080/60p24.814.5295693
 
Nikon D4 Full Frame 16.2 4928 32801080/30p24.713.1296589
 
Nikon D600 Full Frame 24.2 6016 40161080/30p25.114.2298094
 
Nikon D3S Full Frame 12.1 4256 2832720/24p23.512.0325382
 
Nikon D700 Full Frame 12.1 4256 2832none23.512.2230380
 
Nikon D3 Full Frame 12.1 4256 2832none23.512.2229081
 
Olympus E-M5 II Four Thirds 15.9 4608 34561080/60p23.012.584273
 
Olympus E-M1 Four Thirds 15.9 4608 34561080/30p23.012.775773
 
Panasonic GH4 Four Thirds 15.9 4608 34564K/30p23.212.879174
 
Panasonic G6 Four Thirds 15.9 4608 34561080/60p21.311.563961
 
Panasonic GH2 Four Thirds 15.9 4608 34561080/60i21.211.365560

Many modern cameras are not only capable of taking still images, but also of capturing video footage. The GH3 indeed provides for movie recording, while the D3X does not. The highest resolution format that the GH3 can use is 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 GH3 has an electronic viewfinder (1746k dots), while the D3X 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 D3X has a higher magnification than the one of the GH3 (0.70x vs 0.67x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The table below summarizes some of the other core capabilities of the Nikon D3X and Panasonic GH3 in connection with corresponding information for a sample of similar 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 D3Xoptical Y 3.0 922 fixed n 1/8000s 5.0 n n
 
Panasonic GH31746 n 3.0 614 swivel Y 1/4000s 6.0 Y n
 
Canon 1Ds Mark IIIoptical Y 3.0 230 fixed n 1/8000s 5.0 n n
 
Nikon D6optical Y 3.2 2359 fixed Y 1/8000s 14.0 n n
 
Nikon D5optical Y 3.2 2359 fixed Y 1/8000s 14.0 n n
 
Nikon D4Soptical Y 3.2 921 fixed n 1/8000s 11.0 n n
 
Nikon D750optical Y 3.2 1229 tilting n 1/4000s 6.0 Y n
 
Nikon D4optical Y 3.2 921 fixed n 1/8000s 11.0 n n
 
Nikon D600optical Y 3.0 921 fixed n 1/4000s 5.5 Y n
 
Nikon D3Soptical Y 3.0 921 fixed n 1/8000s 11.0 n n
 
Nikon D700optical Y 3.0 922 fixed n 1/8000s 8.0 Y n
 
Nikon D3optical Y 3.0 922 fixed n 1/8000s 11.0 n n
 
Olympus E-M5 II2360 n 3.0 1037 swivel Y 1/8000s 10.0 n Y
 
Olympus E-M12360 n 3.0 1037 tilting Y 1/8000s 10.0 n Y
 
Panasonic GH42359 n 3.0 1036 swivel Y 1/8000s 12.0 Y n
 
Panasonic G61440 n 3.0 1036 swivel Y 1/4000s 7.0 Y n
 
Panasonic GH21534 n 3.0 460 swivel n 1/4000s 3.0 Y n

One feature that is present on the D3X, but is missing on the GH3 is a top-level LCD. While being, of course, smaller than the rear screen, the control panel conveys some of the essential shooting information and can be convenient for quick and easy settings verification.

The GH3 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 D3X does not have a selfie-screen.

The Nikon D3X and the Panasonic GH3 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.

The D3X writes its imaging data to Compact Flash cards, while the GH3 uses SDXC cards. The D3X features dual card slots, which can be very useful in case a memory card fails. In contrast, the GH3 only has one slot.

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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 D3X and Panasonic Lumix DMC-GH3 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 D3XY----mini2.0---
 
Panasonic GH3YstereomonoYYmini2.0Y--
 
Canon 1Ds Mark IIIY-----2.0---
 
Nikon D6YstereomonoYYmini3.1Y-Y
 
Nikon D5YstereomonoYYmini3.0---
 
Nikon D4SYmonomonoYYmini2.0---
 
Nikon D750YstereomonoYYmini2.0Y--
 
Nikon D4YmonomonoYYmicro2.0---
 
Nikon D600YmonomonoYYmini2.0---
 
Nikon D3SYstereo---mini2.0---
 
Nikon D700Y----mini2.0---
 
Nikon D3Y----mini2.0---
 
Olympus E-M5 IIYstereomonoY-micro2.0Y--
 
Olympus E-M1YstereomonoY-micro2.0Y--
 
Panasonic GH4YstereomonoYYmicro2.0YY-
 
Panasonic G6YstereomonoY-mini2.0YY-
 
Panasonic GH2YstereomonoY-mini2.0---

It is notable that the GH3 offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the D3X does not provide wifi capability.

Both cameras feature a PC Sync terminal to control professional strobe lights, which will be appreciated by studio photographers.

Both the D3X and the GH3 have been discontinued, but can regularly be found used on eBay. The GH3 was replaced by the Panasonic GH4, while the D3X does not have a direct successor. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Nikon and Panasonic websites.

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Review summary

So what conclusions can be drawn? Is the Nikon D3X better than the Panasonic GH3 or vice versa? A synthesis of the relative strong points of each of the models is listed below.

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Reasons to prefer the Nikon D3X:

  • More detail: Offers more megapixels (24.4 vs 15.9MP) with a 26% higher linear resolution.
  • Better image quality: Scores substantially higher (17 points) in the DXO overall assessment.
  • Richer colors: Generates images with noticeably better colors (2 bits more color depth).
  • More dynamic range: Captures a larger spectrum of light and dark details (1.3 EV of extra DR).
  • Better low-light sensitivity: Requires less light for good images (1.3 stops ISO advantage).
  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.70x vs 0.67x).
  • Easier setting verification: Features an LCD display on top to control shooting parameters.
  • More detailed LCD: Has a higher resolution rear screen (922k vs 614k dots).
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • More portrait friendly: Features an integrated vertical grip for easier portrait shooting.
  • Longer lasting: Can take more shots (4400 versus 540) on a single battery charge.
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
  • More heavily discounted: Has been available for much longer (launched in December 2008).

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Advantages of the Panasonic Lumix DMC-GH3:

  • Broader imaging potential: Can capture not only stills but also 1080/60p video.
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • 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 burst: Shoots at higher frequency (6 vs 5 flaps/sec) to capture the decisive moment.
  • More compact: Is smaller (133x93mm vs 160x157mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 710g or 56 percent) and is thus easier to take along.
  • More legacy lens friendly: Can use many non-native lenses via adapters.
  • Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
  • Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
  • More affordable: Was introduced into a lower priced category (84 percent cheaper at launch).
  • More modern: Reflects 3 years and 9 months of technical progress since the D3X launch.

If the count of relative strengths (bullet points above) is taken as a measure, the D3X comes out slightly ahead of the GH3 (14 : 13 points). However, the relative importance of the various individual camera aspects will vary according to personal preferences and needs, so that you might like to apply corresponding weights to the particular features before making a decision on a new camera. A professional sports photographer will view the differences between cameras in a way that diverges from the perspective of a street photog, and a person interested in family portraits has distinct needs from a landscape shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

D3X 14:13 GH3

How about other alternatives? Do the specifications of the Nikon D3X and the Panasonic GH3 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 says little about, for example, the shooting experience and imaging performance of the D3X and the GH3 in practical situations. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.

Expert reviews

This is why hands-on reviews by experts are important. The following table reports the overall ratings of the cameras as published by some of the major 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 D3X..86/1004/55/55/5 Dec 2008 7,999i
 
Panasonic GH3+ +79/1004.5/55/54.5/5 Sep 2012 1,299i
 
Canon 1Ds Mark III..+ +4.5/5.... Aug 2007 7,999i
 
Nikon D6....4.5/5..4.5/5 Feb 2020 6,499 i
 
Nikon D5..89/1004.5/55/55/5 Jan 2016 6,499i
 
Nikon D4S....4.5/55/54.5/5 Feb 2014 6,499i
 
Nikon D750+ +90/1004.5/55/54.5/5 Sep 2014 2,299i
 
Nikon D4....4.5/5..4.5/5 Jan 2012 5,999i
 
Nikon D600+ +87/1005/54.5/54.5/5 Sep 2012 2,099i
 
Nikon D3S..89/1004.5/55/55/5 Oct 2009 5,199i
 
Nikon D70089/100+ +4.5/55/54.5/5 Jul 2008 2,999i
 
Nikon D3..+ +5/5o4.5/5 Aug 2007 4,999i
 
Olympus E-M5 II+ +81/1005/54.5/55/5 Feb 2015 1,099i
 
Olympus E-M1+ +84/1004.5/54.5/54.5/5 Sep 2013 1,399i
 
Panasonic GH4+ +85/1005/55/55/5 Feb 2014 1,499i
 
Panasonic G6+ +..5/5..4.5/5 Apr 2013 599i
 
Panasonic GH2+ +79/1004.5/54.5/55/5 Sep 2010 899i
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The review scores listed above should be treated with care, though. The assessments were made in relation to similar cameras of the same technological generation. 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, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

Nikon D3X:
Check Ebay offers
Panasonic GH3:
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 a corresponding selection in the search boxes below. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.

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    Specifications: Nikon D3X vs Panasonic GH3

    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 D3X Panasonic GH3
    Camera Type Digital single lens reflex Mirrorless system camera
    Camera Lens Nikon F mount lenses Micro Four Thirds lenses
    Launch Date December 2008 September 2012
    Launch Price USD 7,999 USD 1,299
    Sensor Specs Nikon D3X Panasonic GH3
    Sensor Technology CMOS CMOS
    Sensor Format Full Frame Sensor Four Thirds Sensor
    Sensor Size 35.9 x 24.0 mm 17.3 x 13.0 mm
    Sensor Area 861.6 mm2 224.9 mm2
    Sensor Diagonal 43.2 mm 21.6 mm
    Crop Factor 1.0x 2.0x
    Sensor Resolution 24.4 Megapixels 15.9 Megapixels
    Image Resolution 6048 x 4032 pixels 4608 x 3456 pixels
    Pixel Pitch 5.94 μm 3.76 μm
    Pixel Density 2.83 MP/cm2 7.08 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability no Video 1080/60p Video
    ISO Setting 100 - 1,600 ISO 200 - 12,800 ISO
    ISO Boost 50 - 6,400 ISO 125 - 25,600 ISO
    Image Processor EXPEED Venus VII FHD
    DXO Sensor Quality (score) 88 71
    DXO Color Depth (bits) 24.7 22.7
    DXO Dynamic Range (EV) 13.7 12.4
    DXO Low Light (ISO) 1992 812
    Screen Specs Nikon D3X Panasonic GH3
    Viewfinder Type Optical viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.70x 0.67x
    Viewfinder Resolution 1746k 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 614k dots
    LCD Attachment Fixed screen Swivel screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Nikon D3X Panasonic GH3
    Focus System Phase-detect AF Contrast-detect AF
    Continuous Shooting 5 shutter flaps/s 6 shutter flaps/s
    Time-Lapse PhotographyIntervalometer built-inIntervalometer built-in
    Fill Flash no On-Board Flash Build-in Flash
    Storage Medium CF cards SDXC cards
    Second Storage Option Dual card slots Single card slot
    Connectivity Specs Nikon D3X Panasonic GH3
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket PC Sync socket
    USB Connector USB 2.0 USB 2.0
    HDMI Port mini HDMI mini HDMI
    Microphone Port no MIC socket External MIC port
    Headphone Socket no Headphone port Headphone port
    Wifi Support no Wifi Wifi built-in
    Body Specs Nikon D3X Panasonic GH3
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type EN-EL4a DMW-BLF19
    Battery Life (CIPA)4400 shots per charge540 shots per charge
    Body Dimensions 160 x 157 x 88 mm
    (6.3 x 6.2 x 3.5 in)
    133 x 93 x 82 mm
    (5.2 x 3.7 x 3.2 in)
    Camera Weight 1260 g (44.4 oz) 550 g (19.4 oz)

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