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Nikon D40X vs Panasonic GH3

The Nikon D40X and the Panasonic Lumix DMC-GH3 are two digital cameras that were officially introduced, respectively, in March 2007 and September 2012. The D40X is a DSLR, while the GH3 is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (D40X) and a Four Thirds (GH3) sensor. The Nikon has a resolution of 10 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 D40X
versus
Panasonic GH3
Nikon D40X   Panasonic GH3
Digital single lens reflex Mirrorless system camera
Nikon F mount lenses Micro Four Thirds lenses
10 MP – APS-C sensor 15.9 MP – Four Thirds sensor
no Video 1080/60p Video
ISO 100-1,600 (100 - 3,200) ISO 200-12,800 (125 - 25,600)
Optical viewfinder Electronic viewfinder (1746k dots)
2.5" LCD – 230k dots 3.0" LCD – 614k dots
Fixed screen (not touch-sensitive) Swivel touchscreen
3 shutter flaps per second 6 shutter flaps per second
not weather sealedWeathersealed body
520 shots per battery charge540 shots per battery charge
124 x 94 x 64 mm, 522 g 133 x 93 x 82 mm, 550 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon D40X 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 D40X and the Panasonic GH3. 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 measures are rounded to the nearest millimeter.

The D40X can be obtained in two different colors (black, silver), while the GH3 is only available in black.

Size Nikon D40X vs Panasonic GH3
Compare D40X versus GH3 top
Comparison D40X 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 notably larger (6 percent) than the Nikon D40X. Moreover, the GH3 is markedly heavier (5 percent) than the D40X. It is noteworthy in this context that the GH3 is splash and dust-proof, while the D40X 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 (D40X) 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 D40X gets 520 shots out of its EN-EL9 battery, while the GH3 can take 540 images on a single charge of its DMW-BLF19 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
    Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Nikon D40X 124 mm 94 mm 64 mm 522 g 520 n Mar 2007 729ebay.com
2.
 
Panasonic GH3 133 mm 93 mm 82 mm 550 g 540 Y Sep 2012 1,299ebay.com
3.
 
Nikon D3100 124 mm 96 mm 75 mm 505 g 550 n Aug 2010 599ebay.com
4.
 
Nikon D3000 126 mm 97 mm 64 mm 536 g 500 n Jul 2009 599ebay.com
5.
 
Nikon D5000 127 mm 104 mm 80 mm 590 g 510 n Apr 2009 749ebay.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 D40 124 mm 94 mm 64 mm 522 g 470 n Nov 2006 499ebay.com
9.
 
Nikon D80 132 mm 103 mm 77 mm 668 g 600 n Aug 2006 999ebay.com
10.
 
Nikon D50 133 mm 102 mm 76 mm 620 g 400 n Apr 2005 749ebay.com
11.
 
Olympus E-M5 II 124 mm 85 mm 45 mm 469 g 310 Y Feb 2015 1,099ebay.com
12.
 
Olympus E-M1 130 mm 94 mm 63 mm 497 g 350 Y Sep 2013 1,399ebay.com
13.
 
Olympus E-420 130 mm 91 mm 53 mm 440 g 500 n Mar 2008 599ebay.com
14.
 
Panasonic GH4 133 mm 93 mm 84 mm 560 g 500 Y Feb 2014 1,499ebay.com
15.
 
Panasonic G6 122 mm 85 mm 71 mm 390 g 340 n Apr 2013 599ebay.com
16.
 
Panasonic GH2 124 mm 90 mm 76 mm 442 g 330 n Sep 2010 899ebay.com
17.
 
Panasonic L10 135 mm 96 mm 78 mm 556 g 450 n Aug 2007 599ebay.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 D40X was launched at a markedly lower price (by 44 percent) than the GH3, 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.

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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Nikon D40X features an APS-C sensor and the Panasonic GH3 a Four Thirds sensor. The sensor area in the GH3 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 D40X has a native 3:2 aspect ratio, while the one in the GH3 offers a 4:3 aspect.

Nikon D40X and Panasonic GH3 sensor measures

Despite having a smaller sensor, the GH3 offers a higher resolution of 15.9 megapixels, compared with 10 MP of the D40X. 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 6.11μm for the D40X). However, it should be noted that the GH3 is much more recent (by 5 years and 6 months) than the D40X, 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 GH3 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the GH3 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 D40X are 19.4 x 13 inches or 49.2 x 32.9 cm for good quality, 15.5 x 10.4 inches or 39.3 x 26.3 cm for very good quality, and 12.9 x 8.6 inches or 32.8 x 21.9 cm for excellent quality prints.

The Nikon D40X has a native sensitivity range from ISO 100 to ISO 1600, which can be extended to ISO 100-3200. 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.

In terms of underlying technology, the D40X is build around a CCD sensor, while the GH3 uses a CMOS imager. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.

D40X versus GH3 MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. This service assesses and scores the color depth ("DXO Portrait"), dynamic range ("DXO Landscape"), and low-light sensitivity ("DXO Sports") of camera sensors, and also publishes an overall camera score. Of the two cameras under consideration, the GH3 has a markedly higher DXO score than the D40X (overall score 8 points higher), which will translate into better image quality. The advantage is based on 0.3 bits higher color depth, 1 EV in additional dynamic range, and 0.7 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
1.
 
Nikon D40X APS-C 10.0 3872 2592none22.411.451663
2.
 
Panasonic GH3 Four Thirds 15.9 4608 34561080/60p22.712.481271
3.
 
Nikon D3100 APS-C 14.2 4608 30721080/24p22.511.391967
4.
 
Nikon D3000 APS-C 10.0 3872 2592none22.311.156362
5.
 
Nikon D5000 APS-C 12.2 4288 2848720/24p22.712.586872
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 D40 APS-C 6.0 3008 2000none21.011.056156
9.
 
Nikon D80 APS-C 10.0 3872 2592none22.111.252461
10.
 
Nikon D50 APS-C 6.0 3008 2000none20.910.856055
11.
 
Olympus E-M5 II Four Thirds 15.9 4608 34561080/60p23.012.584273
12.
 
Olympus E-M1 Four Thirds 15.9 4608 34561080/30p23.012.775773
13.
 
Olympus E-420 Four Thirds 10.0 3648 2736none21.510.452756
14.
 
Panasonic GH4 Four Thirds 15.9 4608 34564K/30p23.212.879174
15.
 
Panasonic G6 Four Thirds 15.9 4608 34561080/60p21.311.563961
16.
 
Panasonic GH2 Four Thirds 15.9 4608 34561080/60i21.211.365560
17.
 
Panasonic L10 Four Thirds 10.0 3648 2736none21.310.842955

Many modern cameras cannot only take still pictures, but also record videos. The GH3 indeed provides for movie recording, while the D40X does not. The highest resolution format that the GH3 can use is 1080/60p.

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 D40X 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 GH3 offers a wider field of view (100%) than the one in the D40X (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the GH3 has a higher magnification (0.67x vs 0.53x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The following table reports on some other key feature differences and similarities of the Nikon D40X, the Panasonic GH3, and comparable cameras.

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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 D40Xoptical n2.5 / 230 fixed n 1/4000s 3.0/s Y n
2.
 
Panasonic GH31746 n3.0 / 614 swivel Y 1/4000s 6.0/s Y n
3.
 
Nikon D3100optical n3.0 / 230 fixed n 1/4000s 3.0/s Y n
4.
 
Nikon D3000optical n3.0 / 230 fixed n 1/4000s 3.0/s Y n
5.
 
Nikon D5000optical n2.7 / 230 full-flex n 1/4000s 4.0/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 D40optical n2.5 / 230 fixed n 1/4000s 2.5/s Y n
9.
 
Nikon D80optical n2.5 / 230 fixed n 1/4000s 3.0/s Y n
10.
 
Nikon D50optical n2.0 / 130 fixed n 1/4000s 2.5/s Y n
11.
 
Olympus E-M5 II2360 n3.0 / 1037 swivel Y 1/8000s 10.0/s n Y
12.
 
Olympus E-M12360 n3.0 / 1037 tilting Y 1/8000s 10.0/s n Y
13.
 
Olympus E-420optical n2.7 / 215 fixed n 1/4000s 3.5/s Y n
14.
 
Panasonic GH42359 n3.0 / 1036 swivel Y 1/8000s 12.0/s Y n
15.
 
Panasonic G61440 n3.0 / 1036 swivel Y 1/4000s 7.0/s Y n
16.
 
Panasonic GH21534 n3.0 / 460 swivel n 1/4000s 3.0/s Y n
17.
 
Panasonic L10optical n2.5 / 207 swivel n 1/4000s 3.0/s Y n
Notes: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The GH3 has a touchscreen, while the D40X has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

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 D40X 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 GH3 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 GH3 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 D40X writes its imaging data to SDHC cards, while the GH3 uses SDXC cards. The GH3 supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the D40X cannot take advantage of Ultra High Speed SD 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 D40X 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
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Nikon D40XY- / ----2.0---
2.
 
Panasonic GH3Ystereo / monoYYmini2.0Y--
3.
 
Nikon D3100Ymono / mono--mini2.0---
4.
 
Nikon D3000Y- / ----2.0---
5.
 
Nikon D5000Ymono / mono--mini2.0---
6.
 
Nikon D60Y- / ----2.0---
7.
 
Nikon D90Ymono / mono--mini2.0---
8.
 
Nikon D40Y- / ----2.0---
9.
 
Nikon D80Y- / ----2.0---
10.
 
Nikon D50Y- / ----2.0---
11.
 
Olympus E-M5 IIYstereo / monoY-micro2.0Y--
12.
 
Olympus E-M1Ystereo / monoY-micro2.0Y--
13.
 
Olympus E-420Y- / ----2.0---
14.
 
Panasonic GH4Ystereo / monoYYmicro2.0YY-
15.
 
Panasonic G6Ystereo / monoY-mini2.0YY-
16.
 
Panasonic GH2Ystereo / monoY-mini2.0---
17.
 
Panasonic L10Y- / ----2.0---

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 D40X does not provide wifi capability.

Studio photographers will appreciate that the Panasonic GH3 (unlike the D40X) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the D40X and the GH3 have been discontinued, but can regularly be found used on ebay. The D40X was replaced by the Nikon D60 , while the GH3 was followed by the Panasonic GH4. Further information on the features and operation of the D40X and GH3 can be found, respectively, in the Nikon D40X Manual (free pdf) or the online Panasonic GH3 Manual.

Review summary

So what conclusions can be drawn? Which of the two cameras – the Nikon D40X or the Panasonic GH3 – has the upper hand? Is one clearly better than the other? A synthesis of the relative strong points of each of the models is listed below.

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Arguments in favor of the Nikon D40X:

  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • More affordable: Was introduced into a lower priced category (44 percent cheaper at launch).
  • More heavily discounted: Has been available for much longer (launched in March 2007).

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Reasons to prefer the Panasonic Lumix DMC-GH3:

  • More detail: Has more megapixels (15.9 vs 10MP), which boosts linear resolution by 24%.
  • Better image quality: Scores markedly higher (8 points) in the DXO overall evaluation.
  • More dynamic range: Captures a broader range of light and dark details (1 EV of extra DR).
  • Better low-light sensitivity: Can shoot in dim conditions (0.7 stops ISO advantage).
  • 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 complete view: Has a viewfinder with a larger field of view (100% vs 95%).
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.67x vs 0.53x).
  • 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 (614k vs 230k dots).
  • 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 3 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.
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
  • 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.
  • Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
  • Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
  • More modern: Reflects 5 years and 6 months of technical progress since the D40X launch.

If the count of individual advantages (bullet points above) is taken as a guide, the GH3 is the clear winner of the contest (22 : 3 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 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.

D40X 03:22 GH3

How about other alternatives? Do the specifications of the Nikon D40X 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 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 D40X or the GH3 perform in practice. 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 why expert reviews 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
     Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Nikon D40X..79/100..+ +4/54/5 Mar 2007 729ebay.com
2.
 
Panasonic GH35/5+ +..79/1004.5/54.5/5 Sep 2012 1,299ebay.com
3.
 
Nikon D31005/5+ +..72/1004.5/54.5/5 Aug 2010 599ebay.com
4.
 
Nikon D3000..+..72/1004/54.5/5 Jul 2009 599ebay.com
5.
 
Nikon D5000..+ +..75/1004/54.5/5 Apr 2009 749ebay.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 D40..81/100..+ +o4.5/5 Nov 2006 499ebay.com
9.
 
Nikon D80..+..+ +o4.5/5 Aug 2006 999ebay.com
10.
 
Nikon D50..78/100..+ +4/54.5/5 Apr 2005 749ebay.com
11.
 
Olympus E-M5 II5/5+ +4.5/581/1005/55/5 Feb 2015 1,099ebay.com
12.
 
Olympus E-M15/5+ +..84/1004.5/54.5/5 Sep 2013 1,399ebay.com
13.
 
Olympus E-420..85/100..+ +4/54.5/5 Mar 2008 599ebay.com
14.
 
Panasonic GH45/5+ +..85/1005/55/5 Feb 2014 1,499ebay.com
15.
 
Panasonic G64/5+ +....5/54.5/5 Apr 2013 599ebay.com
16.
 
Panasonic GH25/5+ +..79/1004.5/55/5 Sep 2010 899ebay.com
17.
 
Panasonic L10..85/100..+3.5/54/5 Aug 2007 599ebay.com
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The above review scores should be interpreted with care, though. The assessments were made in relation to similar cameras of the same technological generation. Hence, a score should always be seen in the context of the camera's market launch date and its price, and 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. 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 D40X 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 D40X Panasonic GH3
    Camera Type Digital single lens reflex Mirrorless system camera
    Camera Lens Nikon F mount lenses Micro Four Thirds lenses
    Launch Date March 2007 September 2012
    Launch Price USD 729 USD 1,299
    Sensor Specs Nikon D40X Panasonic GH3
    Sensor Technology CCD 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 10 Megapixels 15.9 Megapixels
    Image Resolution 3872 x 2592 pixels 4608 x 3456 pixels
    Pixel Pitch 6.11 μm 3.76 μm
    Pixel Density 2.69 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 100 - 3,200 ISO 125 - 25,600 ISO
    Image Processor EXPEED Venus VII FHD
    DXO Sensor Quality (score) 63 71
    DXO Color Depth (bits) 22.4 22.7
    DXO Dynamic Range (EV) 11.4 12.4
    DXO Low Light (ISO) 516 812
    Screen Specs Nikon D40X Panasonic GH3
    Viewfinder Type Optical viewfinder Electronic viewfinder
    Viewfinder Field of View 95% 100%
    Viewfinder Magnification 0.53x 0.67x
    Viewfinder Resolution 1746k dots
    LCD Framing Live View
    Rear LCD Size 2.5inch 3.0inch
    LCD Resolution 230k dots 614k dots
    LCD Attachment Fixed screen Swivel screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Nikon D40X Panasonic GH3
    Focus System Phase-detect AF Contrast-detect AF
    Continuous Shooting 3 shutter flaps/s 6 shutter flaps/s
    Electronic Shutterno E-ShutterYES
    Time-Lapse Photographyno IntervalometerIntervalometer built-in
    Fill Flash Built-in Flash Built-in 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 D40X Panasonic GH3
    External Flash Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 2.0
    HDMI Port no 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 D40X Panasonic GH3
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type EN-EL9 DMW-BLF19
    Battery Life (CIPA)520 shots per charge540 shots per charge
    Body Dimensions 124 x 94 x 64 mm
    (4.9 x 3.7 x 2.5 in)
    133 x 93 x 82 mm
    (5.2 x 3.7 x 3.2 in)
    Camera Weight 522 g (18.4 oz) 550 g (19.4 oz)
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