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Nikon D5000 vs Panasonic GM5

The Nikon D5000 and the Panasonic Lumix DMC-GM5 are two digital cameras that were announced, respectively, in April 2009 and September 2014. The D5000 is a DSLR, while the GM5 is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (D5000) and a Four Thirds (GM5) 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 D5000
versus
Panasonic GM5
Nikon D5000   Panasonic GM5
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
720/24p Video 1080/60p Video
ISO 200-3,200 (200 - 6,400) ISO 200-25,600
Optical viewfinder Electronic viewfinder (1166k dots)
2.7" LCD – 230k dots 3.0" LCD – 921k dots
Fully flexible screen (no touchscreen) Fixed touchscreen
4 shutter flaps per second 5.8 shutter flaps per second
510 shots per battery charge220 shots per battery charge
127 x 104 x 80 mm, 590 g 99 x 60 x 36 mm, 211 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon D5000 and the Panasonic Lumix DMC-GM5? 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 side-by-side display below illustrates the physical size and weight of the Nikon D5000 and the Panasonic GM5. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All width, height and depth measures are rounded to the nearest millimeter.

The GM5 can be obtained in two different colors (black, silver), while the D5000 is only available in black.

Size Nikon D5000 vs Panasonic GM5
Compare D5000 versus GM5 top
Comparison D5000 or GM5 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Panasonic GM5 is considerably smaller (55 percent) than the Nikon D5000. Moreover, the GM5 is substantially lighter (64 percent) than the D5000. In this context, it is worth noting that neither the D5000 nor the GM5 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 (D5000) and the Micro Four Thirds Lens Catalog (GM5). Mirrorless cameras, such as the GM5, 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 D5000 gets 510 shots out of its Nikon EN-EL9a battery, while the GM5 can take 220 images on a single charge of its Panasonic DMW-BLH7 power pack.

The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. In case you want to display and compare another camera duo, you can use the CAM-parator app to select your camera combination among a large number of options.

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Body Specifications
# image Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Nikon D5000 127 mm 104 mm 80 mm 590 g 510 n Apr 2009 749ebay.com
2.
 
Panasonic GM5 99 mm 60 mm 36 mm 211 g 220 n Sep 2014 749ebay.com
3.
 
Canon 450D 129 mm 98 mm 62 mm 524 g 500 n Jan 2008 799ebay.com
4.
 
Nikon D5300 125 mm 98 mm 76 mm 480 g 600 n Oct 2013 799ebay.com
5.
 
Nikon D5200 129 mm 98 mm 78 mm 555 g 500 n Nov 2012 749ebay.com
6.
 
Nikon D5100 128 mm 97 mm 79 mm 560 g 660 n Apr 2011 749ebay.com
7.
 
Nikon D3100 124 mm 96 mm 75 mm 505 g 550 n Aug 2010 599ebay.com
8.
 
Nikon D3000 126 mm 97 mm 64 mm 536 g 500 n Jul 2009 599ebay.com
9.
 
Nikon D60 126 mm 94 mm 64 mm 522 g 500 n Jan 2008 629ebay.com
10.
 
Nikon D90 132 mm 103 mm 77 mm 703 g 850 n Aug 2008 1,299ebay.com
11.
 
Nikon D40X 124 mm 94 mm 64 mm 522 g 520 n Mar 2007 729ebay.com
12.
 
Nikon D80 132 mm 103 mm 77 mm 668 g 600 n Aug 2006 999ebay.com
13.
 
Panasonic G7 125 mm 86 mm 77 mm 410 g 350 n May 2015 649ebay.com
14.
 
Panasonic G6 122 mm 85 mm 71 mm 390 g 340 n Apr 2013 599ebay.com
15.
 
Panasonic GM1 99 mm 55 mm 30 mm 204 g 230 n Oct 2013 749ebay.com
16.
 
Panasonic GX1 116 mm 68 mm 39 mm 318 g 320 n Nov 2011 699ebay.com
17.
 
Panasonic GH2 124 mm 90 mm 76 mm 442 g 330 n Sep 2010 899ebay.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 listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The two cameras under review were launched at the same price and fall into the same 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.

Sensor comparison

The size of the imaging sensor is a crucial determinant of image quality. All other things equal, a large sensor will have larger individual pixel-units that offer better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixels in a sensor of the same technological generation. 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Nikon D5000 features an APS-C sensor and the Panasonic GM5 a Four Thirds sensor. The sensor area in the GM5 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 D5000 has a native 3:2 aspect ratio, while the one in the GM5 offers a 4:3 aspect.

Nikon D5000 and Panasonic GM5 sensor measures

Despite having a smaller sensor, the GM5 offers a higher resolution of 15.8 megapixels, compared with 12.2 MP of the D5000. 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 5.53μm for the D5000). However, it should be noted that the GM5 is much more recent (by 5 years and 5 months) than the D5000, 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 Panasonic GM5 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the GM5 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 D5000 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 D5000 has a native sensitivity range from ISO 200 to ISO 3200, which can be extended to ISO 200-6400. The corresponding ISO settings for the Panasonic Lumix DMC-GM5 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.

D5000 versus GM5 MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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 review, the D5000 has a notably higher overall DXO score than the GM5 (overall score 6 points higher), which gives it an advantage in terms of imaging quality. This advantage is based on 0.6 bits higher color depth, 0.8 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 D5000 APS-C 12.2 4288 2848720/24p22.712.586872
2.
 
Panasonic GM5 Four Thirds 15.8 4592 34481080/60p22.111.772166
3.
 
Canon 450D APS-C 12.2 4272 2848none21.910.869261
4.
 
Nikon D5300 APS-C 24.0 6000 40001080/60p24.013.9133883
5.
 
Nikon D5200 APS-C 24.0 6000 40001080/60i24.213.9128484
6.
 
Nikon D5100 APS-C 16.1 4928 32641080/30p23.513.6118380
7.
 
Nikon D3100 APS-C 14.2 4608 30721080/24p22.511.391967
8.
 
Nikon D3000 APS-C 10.0 3872 2592none22.311.156362
9.
 
Nikon D60 APS-C 10.0 3872 2592none22.511.456265
10.
 
Nikon D90 APS-C 12.2 4288 2848720/24p22.712.597773
11.
 
Nikon D40X APS-C 10.0 3872 2592none22.411.451663
12.
 
Nikon D80 APS-C 10.0 3872 2592none22.111.252461
13.
 
Panasonic G7 Four Thirds 15.8 4592 34484K/30p22.812.490471
14.
 
Panasonic G6 Four Thirds 15.9 4608 34561080/60p21.311.563961
15.
 
Panasonic GM1 Four Thirds 15.8 4592 34481080/60i22.311.766066
16.
 
Panasonic GX1 Four Thirds 15.8 4592 34481080/60p20.810.670355
17.
 
Panasonic GH2 Four Thirds 15.9 4608 34561080/60i21.211.365560
Note: DXO values in italics represent estimates based on sensor size and age.
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Many modern cameras cannot only take still pictures, but also record videos. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the GM5 provides a better video resolution than the D5000. It can shoot movie footage at 1080/60p, while the Nikon is limited to 720/24p.

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Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the GM5 has an electronic viewfinder (1166k dots), while the D5000 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 viewfinder in the GM5 offers a wider field of view (100%) than the one in the D5000 (95%), so that a larger proportion of the captured image is visible in the finder. On the other hand, the viewfinder of the D5000 has a higher magnification (0.51x vs 0.46x), 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 D5000 and Panasonic GM5 in connection with corresponding information for a sample of similar 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 D5000optical n2.7 / 230 full-flex n 1/4000s 4.0/s Y n
2.
 
Panasonic GM51166 n3.0 / 921 fixed Y 1/500s 5.8/s n n
3.
 
Canon 450Doptical n3.0 / 230 fixed n 1/4000s 3.5/s Y n
4.
 
Nikon D5300optical n3.2 / 1037 swivel n 1/4000s 5.0/s Y n
5.
 
Nikon D5200optical n3.0 / 921 swivel n 1/4000s 5.0/s Y n
6.
 
Nikon D5100optical n3.0 / 921 swivel n 1/4000s 4.0/s Y n
7.
 
Nikon D3100optical n3.0 / 230 fixed n 1/4000s 3.0/s Y n
8.
 
Nikon D3000optical n3.0 / 230 fixed n 1/4000s 3.0/s Y n
9.
 
Nikon D60optical n2.5 / 230 fixed n 1/4000s 3.0/s Y n
10.
 
Nikon D90optical Y3.0 / 920 fixed n 1/4000s 4.5/s Y n
11.
 
Nikon D40Xoptical n2.5 / 230 fixed n 1/4000s 3.0/s Y n
12.
 
Nikon D80optical n2.5 / 230 fixed n 1/4000s 3.0/s Y n
13.
 
Panasonic G72360 n3.0 / 1040 swivel Y 1/4000s 7.0/s Y n
14.
 
Panasonic G61440 n3.0 / 1036 swivel Y 1/4000s 7.0/s Y n
15.
 
Panasonic GM1none n3.0 / 1036 fixed Y 1/500s 5.0/s Y n
16.
 
Panasonic GX1optional n3.0 / 460 fixed Y 1/4000s 4.2/s Y n
17.
 
Panasonic GH21534 n3.0 / 460 swivel n 1/4000s 3.0/s Y 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 D5000 has one, while the GM5 does not. While the built-in flash of the D5000 is not very powerful, it can at times be useful as a fill-in light.

The D5000 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 GM5 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 GM5 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 Nikon D5000 and the Panasonic GM5 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 D5000 writes its imaging data to SDHC cards, while the GM5 uses SDXC cards. The GM5 supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the D5000 cannot take advantage of Ultra High Speed SD 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 D5000 and Panasonic Lumix DMC-GM5 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 D5000Ymono / mono--mini2.0---
2.
 
Panasonic GM5Ystereo / mono--micro2.0Y--
3.
 
Canon 450DY- / ---mini2.0---
4.
 
Nikon D5300Ystereo / monoY-mini2.0Y--
5.
 
Nikon D5200Ystereo / monoY-mini2.0---
6.
 
Nikon D5100Ymono / monoY-mini2.0---
7.
 
Nikon D3100Ymono / mono--mini2.0---
8.
 
Nikon D3000Y- / ----2.0---
9.
 
Nikon D60Y- / ----2.0---
10.
 
Nikon D90Ymono / mono--mini2.0---
11.
 
Nikon D40XY- / ----2.0---
12.
 
Nikon D80Y- / ----2.0---
13.
 
Panasonic G7Ystereo / monoY-micro2.0Y--
14.
 
Panasonic G6Ystereo / monoY-mini2.0YY-
15.
 
Panasonic GM1-stereo / mono--micro2.0Y--
16.
 
Panasonic GX1Ystereo / mono--mini2.0---
17.
 
Panasonic GH2Ystereo / monoY-mini2.0---
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It is notable that the GM5 offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the D5000 does not provide wifi capability.

Both the D5000 and the GM5 have been discontinued, but can regularly be found used on ebay. The D5000 was replaced by the Nikon D5100, while the GM5 does not have a direct successor. Further information on the features and operation of the D5000 and GM5 can be found, respectively, in the Nikon D5000 Manual (free pdf) or the online Panasonic GM5 Manual.

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Review summary

So what is the bottom line? Is there a clear favorite between the Nikon D5000 and the Panasonic GM5? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.

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Advantages of the Nikon D5000:

  • Better image quality: Scores markedly higher (6 points) in the DXO overall assessment.
  • More dynamic range: Captures a larger spectrum of light and dark details (0.8 EV of extra DR).
  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.51x vs 0.46x).
  • More flexible LCD: Has a full-flex 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.
  • Faster shutter: Has higher mechanical shutter speed (1/4000s vs 1/500s) to freeze action.
  • Longer lasting: Can take more shots (510 versus 220) 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 available for much longer (launched in April 2009).

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Reasons to prefer the Panasonic Lumix DMC-GM5:

  • More detail: Has more megapixels (15.8 vs 12.2MP), which boosts linear resolution by 12%.
  • Better video: Provides higher definition movie capture (1080/60p vs 720/24p).
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • More complete view: Has a viewfinder with a larger field of view (100% vs 95%).
  • Larger screen: Has a bigger rear LCD (3.0" vs 2.7") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (921k vs 230k dots).
  • Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
  • Faster burst: Shoots at higher frequency (5.8 vs 4 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • More compact: Is smaller (99x60mm vs 127x104mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 379g or 64 percent) and is thus easier to take along.
  • More legacy lens friendly: Can use many non-native lenses via adapters.
  • Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
  • Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
  • More modern: Reflects 5 years and 5 months of technical progress since the D5000 launch.

If the count of relative strengths (bullet points above) is taken as a measure, the GM5 is the clear winner of the contest (15 : 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 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.

D5000 10:15 GM5

How about other alternatives? Do the specifications of the Nikon D5000 and the Panasonic GM5 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 incomplete and does no justice, for example, to the way the D5000 or the GM5 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 table below provides a synthesis of the camera assessments of some of the best known photo-gear review sites (amateurphotographer [AP], cameralabs [CL], digitalcameraworld [DCW], dpreview [DPR], ephotozine [EPZ], photographyblog [PB]). As can be seen, the professional reviewers agree in many cases on the quality of different cameras, but sometimes their assessments diverge, reinforcing the earlier point that a camera decision is often a very personal choice.

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Expert Camera Reviews
# image  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Nikon D5000..+ +..75/1004/54.5/5 Apr 2009 749ebay.com
2.
 
Panasonic GM53.5/5+..77/1005/54.5/5 Sep 2014 749ebay.com
3.
 
Canon 450D..+ +..+ +4/54.5/5 Jan 2008 799ebay.com
4.
 
Nikon D53004/5+ +..79/1004.5/54.5/5 Oct 2013 799ebay.com
5.
 
Nikon D52004/5+ +..79/1004.5/54.5/5 Nov 2012 749ebay.com
6.
 
Nikon D51005/5+ +..76/1004.5/54.5/5 Apr 2011 749ebay.com
7.
 
Nikon D31005/5+ +..72/1004.5/54.5/5 Aug 2010 599ebay.com
8.
 
Nikon D3000..+..72/1004/54.5/5 Jul 2009 599ebay.com
9.
 
Nikon D60..80/100..+ +4/54.5/5 Jan 2008 629ebay.com
10.
 
Nikon D90..+ +..+ +4/54.5/5 Aug 2008 1,299ebay.com
11.
 
Nikon D40X..79/100..+ +4/54/5 Mar 2007 729ebay.com
12.
 
Nikon D80..+..+ +o4.5/5 Aug 2006 999ebay.com
13.
 
Panasonic G74/5+ +3.5/580/1005/54.5/5 May 2015 649ebay.com
14.
 
Panasonic G64/5+ +....5/54.5/5 Apr 2013 599ebay.com
15.
 
Panasonic GM13/5+..78/1005/54.5/5 Oct 2013 749ebay.com
16.
 
Panasonic GX13/5+..77/1004.5/54.5/5 Nov 2011 699ebay.com
17.
 
Panasonic GH25/5+ +..79/1004.5/55/5 Sep 2010 899ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.
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The review scores listed above should be treated with care, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

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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 make a corresponding selection in the search boxes below. 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 D5000 vs Panasonic GM5

    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 D5000 Panasonic GM5
    Camera Type Digital single lens reflex Mirrorless system camera
    Camera Lens Nikon F mount lenses Micro Four Thirds lenses
    Launch Date April 2009 September 2014
    Launch Price USD 749 USD 749
    Sensor Specs Nikon D5000 Panasonic GM5
    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 15.8 Megapixels
    Image Resolution 4288 x 2848 pixels 4592 x 3448 pixels
    Pixel Pitch 5.53 μm 3.77 μm
    Pixel Density 3.28 MP/cm2 7.04 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability 720/24p Video 1080/60p Video
    ISO Setting 200 - 3,200 ISO 200 - 25,600 ISO
    ISO Boost 200 - 6,400 ISO 100 - 25,600 ISO
    Image Processor EXPEED Venus
    DXO Sensor Quality (score) 72 66
    DXO Color Depth (bits) 22.7 22.1
    DXO Dynamic Range (EV) 12.5 11.7
    DXO Low Light (ISO) 868 721
    Screen Specs Nikon D5000 Panasonic GM5
    Viewfinder Type Optical viewfinder Electronic viewfinder
    Viewfinder Field of View 95% 100%
    Viewfinder Magnification 0.51x 0.46x
    Viewfinder Resolution 1166k dots
    LCD Framing Live View Live View
    Rear LCD Size 2.7inch 3.0inch
    LCD Resolution 230k dots 921k dots
    LCD Attachment Fully flexible screen Fixed screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Nikon D5000 Panasonic GM5
    Focus System Phase-detect AF Contrast-detect AF
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/4000s 1/500s
    Continuous Shooting 4 shutter flaps/s 5.8 shutter flaps/s
    Electronic Shutterno E-Shutterup to 1/16000s
    Time-Lapse PhotographyIntervalometer built-inIntervalometer built-in
    Fill Flash Built-in Flash no On-Board Flash
    Storage Medium SDHC cards SDXC cards
    Single or Dual Card Slots Single card slot Single card slot
    UHS card support no UHS-I
    Connectivity Specs Nikon D5000 Panasonic GM5
    External Flash Hotshoe Hotshoe
    USB Connector USB 2.0 USB 2.0
    HDMI Port mini HDMI micro HDMI
    Wifi Support no Wifi Wifi built-in
    Body Specs Nikon D5000 Panasonic GM5
    Battery Type Nikon EN-EL9a Panasonic DMW-BLH7
    Battery Life (CIPA)510 shots per charge220 shots per charge
    Body Dimensions 127 x 104 x 80 mm
    (5.0 x 4.1 x 3.1 in)
    99 x 60 x 36 mm
    (3.9 x 2.4 x 1.4 in)
    Camera Weight 590 g (20.8 oz) 211 g (7.4 oz)
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