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Nikon D2X vs Panasonic GX850

The Nikon D2X and the Panasonic Lumix DMC-GX850 (labelled Panasonic GX800 in some countries) are two digital cameras that were announced, respectively, in September 2004 and January 2017. The D2X is a DSLR, while the GX850 is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (D2X) and a Four Thirds (GX850) sensor. The Nikon has a resolution of 12.2 megapixels, whereas the Panasonic provides 15.8 MP.

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

Headline Specifications
Nikon D2X
versus
Panasonic GX850
Nikon D2X   Panasonic GX850
Digital single lens reflex Mirrorless system camera
Nikon F mount lenses Micro Four Thirds lenses
12.2 MP – APS-C sensor 15.8 MP – Four Thirds sensor
no Video 4K/30p Video
ISO 100-800 (100 - 3,200) ISO 200-25,600
Optical viewfinder No viewfinder, LCD framing
2.5" LCD – 235k dots 3.0" LCD – 1040k dots
Fixed screen (not touch-sensitive) Tilting touchscreen
5 shutter flaps per second 10 shutter flaps per second
Weathersealed bodynot weather sealed
3800 shots per battery charge210 shots per battery charge
158 x 150 x 86 mm, 1252 g 107 x 65 x 33 mm, 269 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon D2X and the Panasonic Lumix DMC-GX850? 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 D2X and the Panasonic GX850 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 GX850 can be obtained in three different colors (black, silver, red), while the D2X is only available in black.

Size Nikon D2X vs Panasonic GX850
Compare D2X versus GX850 top
Comparison D2X or GX850 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Panasonic GX850 is considerably smaller (71 percent) than the Nikon D2X. Moreover, the GX850 is substantially lighter (79 percent) than the D2X. It is worth mentioning in this context that the D2X is splash and dust resistant, while the GX850 does not feature any corresponding weather-sealing.

The above size and weight comparisons are to some extent incomplete since they do not consider the interchangeable lenses that both of these cameras require. A larger imaging sensor will tend to go along with bigger and heavier lenses, although exceptions exist. You can compare the optics available for the two cameras in the Nikon Lens Catalog (D2X) and the Micro Four Thirds Lens Catalog (GX850). Mirrorless cameras, such as the GX850, 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 D2X gets 3800 shots out of its Nikon EN-EL4a battery, while the GX850 can take 210 images on a single charge of its Panasonic DMW-BLH7 power pack. As can be seen in the images above, the D2X has a battery grip built in. This facilitates image-taking in portrait orientation and gives it additional battery power.

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
  empty Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Nikon D2X 158 mm 150 mm 86 mm 1252 g 3800 Y Sep 2004 4,999ebay.com
2.
 
Panasonic GX850 107 mm 65 mm 33 mm 269 g 210 n Jan 2017 549ebay.com
3.
 
Nikon D1 157 mm 153 mm 85 mm 1100 g .. Y Jun 1999 5,499ebay.com
4.
 
Nikon D1H 157 mm 153 mm 85 mm 1100 g 1200 Y Feb 2001 4,499ebay.com
5.
 
Nikon D1X 157 mm 153 mm 85 mm 1100 g 1200 Y Feb 2001 5,999ebay.com
6.
 
Nikon D2H 158 mm 150 mm 86 mm 1070 g 2900 Y Jul 2003 3,499ebay.com
7.
 
Nikon D2Xs 158 mm 150 mm 86 mm 1252 g 3800 Y Jun 2006 4,699ebay.com
8.
 
Nikon D3 160 mm 157 mm 88 mm 1300 g 4300 Y Aug 2007 4,999ebay.com
9.
 
Nikon D3S 160 mm 157 mm 88 mm 1240 g 4200 Y Oct 2009 5,199ebay.com
10.
 
Nikon D200 147 mm 113 mm 74 mm 920 g 400 Y Nov 2005 1,699ebay.com
11.
 
Nikon D300 147 mm 114 mm 74 mm 925 g 1000 Y Aug 2007 1,799ebay.com
12.
 
Nikon D300S 147 mm 115 mm 81 mm 938 g 950 Y Jul 2009 1,799ebay.com
13.
 
Panasonic G3 115 mm 84 mm 47 mm 336 g 270 n May 2011 599ebay.com
14.
 
Panasonic G5 120 mm 83 mm 71 mm 396 g 320 n Jul 2012 599ebay.com
15.
 
Panasonic G6 122 mm 85 mm 71 mm 390 g 340 n Apr 2013 599ebay.com
16.
 
Panasonic GF7 107 mm 65 mm 33 mm 266 g 230 n Jan 2015 499ebay.com
17.
 
Panasonic GX1 116 mm 68 mm 39 mm 318 g 320 n Nov 2011 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 manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The GX850 was launched at a markedly lower price (by 89 percent) than the D2X, which puts it into a different market segment. Normally, street prices remain initially close to the MSRP, but after a couple of months, the first discounts appear. Later in the product cycle and, in particular, when the replacement model is about to appear, further discounting and stock clearance sales often push the camera price considerably down. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.

Sensor comparison

The imaging sensor is at the core of digital cameras and its size is one of the main determining factors 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 more expensive and lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Nikon D2X features an APS-C sensor and the Panasonic GX850 a Four Thirds sensor. The sensor area in the GX850 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 D2X has a native 3:2 aspect ratio, while the one in the GX850 offers a 4:3 aspect.

Nikon D2X and Panasonic GX850 sensor measures

Despite having a smaller sensor, the GX850 offers a higher resolution of 15.8 megapixels, compared with 12.2 MP of the D2X. 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 3.77μm versus 5.52μm for the D2X). However, it should be noted that the GX850 is much more recent (by 12 years and 3 months) than the D2X, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently. Coming back to sensor resolution, it should be mentioned that the GX850 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Panasonic GX850 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the GX850 for good quality output (200 dots per inch) amounts to 23 x 17.2 inches or 58.3 x 43.8 cm, for very good quality (250 dpi) 18.4 x 13.8 inches or 46.7 x 35 cm, and for excellent quality (300 dpi) 15.3 x 11.5 inches or 38.9 x 29.2 cm. The corresponding values for the Nikon D2X 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 D2X has a native sensitivity range from ISO 100 to ISO 800, which can be extended to ISO 100-3200. The corresponding ISO settings for the Panasonic Lumix DMC-GX850 are ISO 200 to ISO 25600, with the possibility to increase the ISO range to 100-25600.

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.

D2X versus GX850 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 GX850 offers substantially better image quality than the D2X (overall score 14 points higher). The advantage is based on 1.1 bits higher color depth, 2.4 EV in additional dynamic range, and 0.3 stops in additional low light sensitivity. The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.

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Sensor Characteristics
  empty Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Nikon D2X APS-C 12.2 4288 2848none22.110.947659
2.
 
Panasonic GX850 Four Thirds 15.8 4592 34484K/30p23.213.358673
3.
 
Nikon D1 APS-C 2.6 2000 1312none........
4.
 
Nikon D1H APS-C 2.6 2000 1312none........
5.
 
Nikon D1X APS-C 5.9 3008 1960none........
6.
 
Nikon D2H APS-C 4.0 2464 1632none18.910.035240
7.
 
Nikon D2Xs APS-C 12.2 4288 2848none22.210.948959
8.
 
Nikon D3 Full Frame 12.1 4256 2832none23.512.2229081
9.
 
Nikon D3S Full Frame 12.1 4256 2832720/24p23.512.0325382
10.
 
Nikon D200 APS-C 10.0 3872 2592none22.311.558364
11.
 
Nikon D300 APS-C 12.2 4288 2848none22.112.067967
12.
 
Nikon D300S APS-C 12.2 4288 2848720/24p22.512.278770
13.
 
Panasonic G3 Four Thirds 15.8 4592 34481080/60i21.010.666756
14.
 
Panasonic G5 Four Thirds 15.9 4608 34561080/60p21.411.661861
15.
 
Panasonic G6 Four Thirds 15.9 4608 34561080/60p21.311.563961
16.
 
Panasonic GF7 Four Thirds 15.8 4592 34481080/60p22.712.387470
17.
 
Panasonic GX1 Four Thirds 15.8 4592 34481080/60p20.810.670355
Note: DXO values in italics represent estimates based on sensor size and age.

Many modern cameras are not only capable of taking still images, but also of capturing video footage. The GX850 indeed provides for movie recording, while the D2X does not. The highest resolution format that the GX850 can use is 4K/30p.

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Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. For example, the D2X has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the GX850 relies on live view and the rear LCD for framing. The following table reports on some other key feature differences and similarities of the Nikon D2X, the Panasonic GX850, and comparable cameras.

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Core Features
  empty 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 D2Xoptical Y2.5 / 235 fixed n 1/8000s 5.0/s n n
2.
 
Panasonic GX850none n3.0 / 1040 tilting Y 1/500s 10.0/s Y n
3.
 
Nikon D1optical Y2.0 / 120 fixed n 1/16000s 4.5/s n n
4.
 
Nikon D1Hoptical Y2.0 / 120 fixed n 1/16000s 5.0/s n n
5.
 
Nikon D1Xoptical Y2.0 / 120 fixed n 1/16000s 3.0/s n n
6.
 
Nikon D2Hoptical Y2.5 / 211 fixed n 1/8000s 8.0/s n n
7.
 
Nikon D2Xsoptical Y2.5 / 230 fixed n 1/8000s 5.0/s n n
8.
 
Nikon D3optical Y3.0 / 922 fixed n 1/8000s 11.0/s n n
9.
 
Nikon D3Soptical Y3.0 / 921 fixed n 1/8000s 11.0/s n n
10.
 
Nikon D200optical Y2.5 / 230 fixed n 1/8000s 5.0/s Y n
11.
 
Nikon D300optical Y3.0 / 922 fixed n 1/8000s 6.0/s Y n
12.
 
Nikon D300Soptical Y3.0 / 920 fixed n 1/8000s 7.0/s Y n
13.
 
Panasonic G31440 n3.0 / 460 swivel Y 1/4000s 4.0/s Y n
14.
 
Panasonic G51440 n3.0 / 920 swivel Y 1/4000s 6.0/s Y n
15.
 
Panasonic G61440 n3.0 / 1036 swivel Y 1/4000s 7.0/s Y n
16.
 
Panasonic GF7none n3.0 / 1040 tilting Y 1/500s 5.8/s Y n
17.
 
Panasonic GX1optional n3.0 / 460 fixed Y 1/4000s 4.2/s Y n
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One feature that is present on the D2X, but is missing on the GX850 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 GX850 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 D2X 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 GX850 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 Panasonic GX850 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 D2X writes its imaging data to Compact Flash cards, while the GX850 uses SDXC cards.

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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 D2X and Panasonic Lumix DMC-GX850 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
  empty Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Nikon D2XY- / ----2.0---
2.
 
Panasonic GX850-stereo / mono--micro2.0Y--
3.
 
Nikon D1Y- / ----FW---
4.
 
Nikon D1HY- / ----FW---
5.
 
Nikon D1XY- / ----FW---
6.
 
Nikon D2HY- / ----2.0---
7.
 
Nikon D2XsY- / ----2.0---
8.
 
Nikon D3Y- / ---mini2.0---
9.
 
Nikon D3SYstereo / ---mini2.0---
10.
 
Nikon D200Y- / ----2.0---
11.
 
Nikon D300Y- / ---mini2.0---
12.
 
Nikon D300SYstereo / monoY-mini2.0---
13.
 
Panasonic G3Ystereo / mono--mini2.0---
14.
 
Panasonic G5Ystereo / mono--mini2.0---
15.
 
Panasonic G6Ystereo / monoY-mini2.0YY-
16.
 
Panasonic GF7-stereo / mono--micro2.0YY-
17.
 
Panasonic GX1Ystereo / mono--mini2.0---

It is notable that the D2X has a hotshoe, while the GX850 does not. This socket makes it possible to easily attach optional accessories, such as an external flash gun.

Studio photographers will appreciate that the Nikon D2X (unlike the GX850) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the D2X and the GX850 have been discontinued, but can regularly be found used on ebay. The D2X was replaced by the Nikon D2Xs, while the GX850 does not have a direct successor. Further information on the features and operation of the D2X and GX850 can be found, respectively, in the Nikon D2X Manual (free pdf) or the online Panasonic GX850 Manual.

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Review summary

So what conclusions can be drawn? Is there a clear favorite between the Nikon D2X and the Panasonic GX850? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.

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Reasons to prefer the Nikon D2X:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Easier framing: Has an optical viewfinder for image composition and settings control.
  • Easier setting verification: Features an LCD display on top to control shooting parameters.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/500s) to freeze action.
  • More portrait friendly: Features an integrated vertical grip for easier portrait shooting.
  • Longer lasting: Can take more shots (3800 versus 210) on a single battery charge.
  • Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
  • Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
  • 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 September 2004).

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Arguments in favor of the Panasonic Lumix DMC-GX850:

  • More detail: Has more megapixels (15.8 vs 12.2MP), which boosts linear resolution by 12%.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Better image quality: Scores substantially higher (14 points) in the DXO overall evaluation.
  • Richer colors: Generates noticeably more natural colors (1.1 bits more color depth).
  • More dynamic range: Captures a broader range of light and dark details (2.4 EV of extra DR).
  • Broader imaging potential: Can capture not only stills but also 4K/30p video.
  • Larger screen: Has a bigger rear LCD (3.0" vs 2.5") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (1040k vs 235k dots).
  • 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.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • Faster burst: Shoots at higher frequency (10 vs 5 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • More compact: Is smaller (107x65mm vs 158x150mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 983g or 79 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 (89 percent cheaper at launch).
  • More modern: Reflects 12 years and 3 months of technical progress since the D2X launch.

If the count of relative strengths (bullet points above) is taken as a measure, the GX850 is the clear winner of the contest (21 : 10 points). However, the pertinence of the various camera strengths will differ across photographers, so that you might want to weigh individual camera traits according to their importance for your own imaging needs before making a camera decision. 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.

D2X 10:21 GX850

How about other alternatives? Do the specifications of the Nikon D2X and the Panasonic GX850 place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Mirrorless Interchangeable Lens Camera listings whether the two cameras rank among the cream of the crop.

In any case, while the comparison of technical specifications can provide a useful overview of the capabilities of different cameras, it remains incomplete and does no justice, for example, to the way the D2X or the GX850 perform in practice. 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 (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
  empty  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Nikon D2X......+ +.... Sep 2004 4,999ebay.com
2.
 
Panasonic GX850..+..76/1004.5/54.5/5 Jan 2017 549ebay.com
3.
 
Nikon D1......+ +.... Jun 1999 5,499ebay.com
4.
 
Nikon D1H......+ +.... Feb 2001 4,499ebay.com
5.
 
Nikon D1X......+ +.... Feb 2001 5,999ebay.com
6.
 
Nikon D2H......+ +.... Jul 2003 3,499ebay.com
7.
 
Nikon D2Xs............ Jun 2006 4,699ebay.com
8.
 
Nikon D3......+ +5/54.5/5 Aug 2007 4,999ebay.com
9.
 
Nikon D3S5/5....89/1004.5/55/5 Oct 2009 5,199ebay.com
10.
 
Nikon D200..+ +..+ +o.. Nov 2005 1,699ebay.com
11.
 
Nikon D300..+ +..+ +5/54.5/5 Aug 2007 1,799ebay.com
12.
 
Nikon D300S5/5+ +..82/1004/54.5/5 Jul 2009 1,799ebay.com
13.
 
Panasonic G33/5+ +..75/1004.5/55/5 May 2011 599ebay.com
14.
 
Panasonic G53/5+ +....4.5/54.5/5 Jul 2012 599ebay.com
15.
 
Panasonic G64/5+ +....5/54.5/5 Apr 2013 599ebay.com
16.
 
Panasonic GF74/5+....4.5/54.5/5 Jan 2015 499ebay.com
17.
 
Panasonic GX13/5+..77/1004.5/54.5/5 Nov 2011 699ebay.com
Note: (+ +) 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 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 your choice using the following search menu. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.

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    Specifications: Nikon D2X vs Panasonic GX850

    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 D2X Panasonic GX850
    Camera Type Digital single lens reflex Mirrorless system camera
    Camera Lens Nikon F mount lenses Micro Four Thirds lenses
    Launch Date September 2004 January 2017
    Launch Price USD 4,999 USD 549
    Sensor Specs Nikon D2X Panasonic GX850
    Sensor Technology CMOS CMOS
    Sensor Format APS-C Sensor Four Thirds Sensor
    Sensor Size 23.7 x 15.7 mm 17.3 x 13.0 mm
    Sensor Area 372.09 mm2 224.9 mm2
    Sensor Diagonal 28.4 mm 21.6 mm
    Crop Factor 1.5x 2.0x
    Sensor Resolution 12.2 Megapixels 15.8 Megapixels
    Image Resolution 4288 x 2848 pixels 4592 x 3448 pixels
    Pixel Pitch 5.52 μm 3.77 μm
    Pixel Density 3.28 MP/cm2 7.04 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability no Video 4K/30p Video
    ISO Setting 100 - 800 ISO 200 - 25,600 ISO
    ISO Boost 100 - 3,200 ISO 100 - 25,600 ISO
    DXO Sensor Quality (score) 59 73
    DXO Color Depth (bits) 22.1 23.2
    DXO Dynamic Range (EV) 10.9 13.3
    DXO Low Light (ISO) 476 586
    Screen Specs Nikon D2X Panasonic GX850
    Viewfinder Type Optical viewfinder no viewfinder
    Viewfinder Field of View 100%
    Viewfinder Magnification 0.57x
    Top-Level Screen Control Panel no Top Display
    LCD Framing Live View
    Rear LCD Size 2.5inch 3.0inch
    LCD Resolution 235k dots 1040k dots
    LCD Attachment Fixed screen Tilting screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Nikon D2X Panasonic GX850
    Focus System Phase-detect AF Contrast-detect AF
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/8000s 1/500s
    Continuous Shooting 5 shutter flaps/s 10 shutter flaps/s
    Electronic Shutterno E-Shutterup to 1/16000s
    Time-Lapse Photographyno IntervalometerIntervalometer built-in
    Fill Flash no On-Board Flash Built-in Flash
    Storage Medium CF cards SDXC cards
    Single or Dual Card Slots Single card slot Single card slot
    Connectivity Specs Nikon D2X Panasonic GX850
    External Flash Hotshoe no Hotshoe
    Studio Flash PC Sync socket no PC Sync
    USB Connector USB 2.0 USB 2.0
    HDMI Port no HDMI micro HDMI
    Wifi Support no Wifi Wifi built-in
    Body Specs Nikon D2X Panasonic GX850
    Environmental SealingWeathersealed bodynot weather sealed
    Battery Type Nikon EN-EL4a Panasonic DMW-BLH7
    Battery Life (CIPA)3800 shots per charge210 shots per charge
    Body Dimensions 158 x 150 x 86 mm
    (6.2 x 5.9 x 3.4 in)
    107 x 65 x 33 mm
    (4.2 x 2.6 x 1.3 in)
    Camera Weight 1252 g (44.2 oz) 269 g (9.5 oz)
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    Check D2X offers at
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    Check GX850 offers at
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