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Nikon D90 vs Panasonic GX7

The Nikon D90 and the Panasonic Lumix DMC-GX7 are two enthusiast cameras that were officially introduced, respectively, in August 2008 and August 2013. The D90 is a DSLR, while the GX7 is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (D90) and a Four Thirds (GX7) 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 D90
versus
Panasonic GX7
Nikon D90   Panasonic GX7
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 125-25,600
Optical viewfinder Electronic viewfinder (2760k dots)
3.0" LCD – 920k dots 3.0" LCD – 1040k dots
Fixed screen (not touch-sensitive) Tilting touchscreen
4.5 shutter flaps per second 5 shutter flaps per second
Lens stabilization onlyIn-body stabilization
850 shots per battery charge350 shots per battery charge
132 x 103 x 77 mm, 703 g 123 x 71 x 55 mm, 402 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon D90 and the Panasonic Lumix DMC-GX7? 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 D90 and the Panasonic GX7 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 size dimensions are rounded to the nearest millimeter.

The GX7 can be obtained in two different colors (black, silver), while the D90 is only available in black.

Size Nikon D90 vs Panasonic GX7
Compare D90 versus GX7 top
Comparison D90 or GX7 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Panasonic GX7 is considerably smaller (36 percent) than the Nikon D90. Moreover, the GX7 is substantially lighter (43 percent) than the D90. In this context, it is worth noting that neither the D90 nor the GX7 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 (D90) and the Micro Four Thirds Lens Catalog (GX7). Mirrorless cameras, such as the GX7, 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 D90 gets 850 shots out of its Nikon EN-EL3e battery, while the GX7 can take 350 images on a single charge of its Panasonic DMW-BLG10 power pack.

The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. If you would like to visualize and compare a different camera combination, you can navigate to the CAM-parator app and make your selection from a broad list of cameras there.

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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
Street
Price
1.
 
Nikon D90 132 mm 103 mm 77 mm 703 g 850 n Aug 2008 US$ 1 299ebay.com
2.
 
Panasonic GX7 123 mm 71 mm 55 mm 402 g 350 n Aug 2013 US$ 999ebay.com
3.
 
Canon 40D 146 mm 108 mm 74 mm 822 g 750 n Aug 2007 US$ 1 299ebay.com
4.
 
Nikon D40X 124 mm 94 mm 64 mm 522 g 520 n Mar 2007 US$ 729ebay.com
5.
 
Nikon D60 126 mm 94 mm 64 mm 522 g 500 n Jan 2008 US$ 629ebay.com
6.
 
Nikon D80 132 mm 103 mm 77 mm 668 g 600 n Aug 2006 US$ 999ebay.com
7.
 
Nikon D3000 126 mm 97 mm 64 mm 536 g 500 n Jul 2009 US$ 599ebay.com
8.
 
Nikon D5000 127 mm 104 mm 80 mm 590 g 510 n Apr 2009 US$ 749ebay.com
9.
 
Nikon D7000 132 mm 105 mm 77 mm 780 g 1050 Y Sep 2010 US$ 1 499ebay.com
10.
 
Nikon D7100 136 mm 107 mm 76 mm 765 g 950 Y Feb 2013 US$ 1 199ebay.com
11.
 
Nikon D7200 136 mm 107 mm 76 mm 765 g 1110 Y Mar 2015 US$ 1 199ebay.com
12.
 
Nikon D7500 136 mm 104 mm 73 mm 720 g 950 Y Apr 2017 US$ 1 299 amazon.com
13.
 
Olympus E-M10 119 mm 82 mm 46 mm 396 g 320 n Jan 2014 US$ 699ebay.com
14.
 
Olympus E-P5 122 mm 69 mm 37 mm 420 g 330 n May 2013 US$ 999ebay.com
15.
 
Panasonic G6 122 mm 85 mm 71 mm 390 g 340 n Apr 2013 US$ 599ebay.com
16.
 
Panasonic GH2 124 mm 90 mm 76 mm 442 g 330 n Sep 2010 US$ 899ebay.com
17.
 
Panasonic GX1 116 mm 68 mm 39 mm 318 g 320 n Nov 2011 US$ 699ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.

The price is, of course, an important factor in any camera decision. The retail prices at the time of the camera’s release place the model in the market relative to other models in the producer’s line-up and the competition. The GX7 was launched at a somewhat lower price (by 23 percent) than the D90, which makes it more attractive for photographers on a tight budget. Usually, retail prices stay at first close to the launch price, but after several months, discounts become available. Later in the product cycle and, in particular, when the replacement model is about to appear, further discounting and stock clearance sales often push the camera price considerably down. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.

Sensor comparison

The size of the sensor inside a digital camera is one of the key determinants of image quality. A large sensor will generally have larger individual pixels that offer better low-light sensitivity, provide wider dynamic range, and have richer color-depth than smaller pixels in a sensor of the same technological generation. Furthermore, a large sensor camera will give the photographer more possibilities to use shallow depth-of-field in order to isolate a subject from the background. On the downside, larger sensors tend to be more expensive and lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Nikon D90 features an APS-C sensor and the Panasonic GX7 a Four Thirds sensor. The sensor area in the GX7 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 D90 has a native 3:2 aspect ratio, while the one in the GX7 offers a 4:3 aspect.

Nikon D90 and Panasonic GX7 sensor measures

Despite having a smaller sensor, the GX7 offers a higher resolution of 15.8 megapixels, compared with 12.2 MP of the D90. 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 D90). However, it should be noted that the GX7 is much more recent (by 4 years and 11 months) than the D90, 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 GX7 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the GX7 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 D90 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 D90 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-GX7 are ISO 125 to ISO 25600 (no boost).

Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.

D90 versus GX7 MP

Consistent information on actual sensor performance is available from DXO Mark for many cameras. This service is based on lab testing and assigns an overall score to each camera sensor, as well as ratings for dynamic range ("DXO Landscape"), color depth ("DXO Portrait"), and low-light sensitivity ("DXO Sports"). The Overall DXO ratings for the two cameras under consideration are close, suggesting that they provide similar imaging performance. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.

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Sensor Characteristics
  empty Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Nikon D90 APS-C 12.2 4288 2848720/24p22.712.597773
2.
 
Panasonic GX7 Four Thirds 15.8 4592 34481080/60p22.612.271870
3.
 
Canon 40D APS-C 10.1 3888 2592none22.111.370364
4.
 
Nikon D40X APS-C 10.0 3872 2592none22.411.451663
5.
 
Nikon D60 APS-C 10.0 3872 2592none22.511.456265
6.
 
Nikon D80 APS-C 10.0 3872 2592none22.111.252461
7.
 
Nikon D3000 APS-C 10.0 3872 2592none22.311.156362
8.
 
Nikon D5000 APS-C 12.2 4288 2848720/24p22.712.586872
9.
 
Nikon D7000 APS-C 16.1 4928 32641080/24p23.513.9116780
10.
 
Nikon D7100 APS-C 24.0 6000 40001080/60p24.213.7125683
11.
 
Nikon D7200 APS-C 24.0 6000 40001080/60p24.514.6133387
12.
 
Nikon D7500 APS-C 20.7 5568 37124K/30p24.314.0148386
13.
 
Olympus E-M10 Four Thirds 15.9 4608 34561080/30p22.812.388472
14.
 
Olympus E-P5 Four Thirds 15.9 4608 34561080/30p22.812.489572
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 GX1 Four Thirds 15.8 4592 34481080/60p20.810.670355

Many modern cameras cannot only take still pictures, but also record videos. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the GX7 provides a better video resolution than the D90. It can shoot movie footage at 1080/60p, while the Nikon is limited to 720/24p.

Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. For example, the GX7 has an electronic viewfinder (2760k dots), while the D90 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 GX7 offers a wider field of view (100%) than the one in the D90 (96%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the GX7 has a higher magnification (0.70x vs 0.63x), 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 D90 and Panasonic GX7 in connection with corresponding information for a sample of similar 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 D90optical Y3.0 / 920 fixed n 1/4000s 4.5/s Y n
2.
 
Panasonic GX72760 n3.0 / 1040 tilting Y 1/8000s 5.0/s Y Y
3.
 
Canon 40Doptical Y3.0 / 230 fixed n 1/8000s 6.5/s Y n
4.
 
Nikon D40Xoptical n2.5 / 230 fixed n 1/4000s 3.0/s Y n
5.
 
Nikon D60optical n2.5 / 230 fixed n 1/4000s 3.0/s Y n
6.
 
Nikon D80optical n2.5 / 230 fixed n 1/4000s 3.0/s Y n
7.
 
Nikon D3000optical n3.0 / 230 fixed n 1/4000s 3.0/s Y n
8.
 
Nikon D5000optical n2.7 / 230 full-flex n 1/4000s 4.0/s Y n
9.
 
Nikon D7000optical Y3.0 / 921 fixed n 1/8000s 6.0/s Y n
10.
 
Nikon D7100optical Y3.2 / 1229 fixed n 1/8000s 6.0/s Y n
11.
 
Nikon D7200optical Y3.2 / 1229 fixed n 1/8000s 6.0/s Y n
12.
 
Nikon D7500optical Y3.2 / 922 tilting Y 1/8000s 8.0/s Y n
13.
 
Olympus E-M101440 n3.0 / 1037 tilting Y 1/4000s 8.0/s Y Y
14.
 
Olympus E-P5optional n3.0 / 1037 tilting Y 1/8000s 9.0/s Y Y
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 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 D90, but is missing on the GX7 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 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 GX7 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 GX7 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 D90 writes its imaging data to SDHC cards, while the GX7 uses SDXC cards. The GX7 supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the D90 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 D90 and Panasonic Lumix DMC-GX7 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 D90Ymono / mono--mini2.0---
2.
 
Panasonic GX7Ystereo / mono--mini2.0YY-
3.
 
Canon 40DY- / ----2.0---
4.
 
Nikon D40XY- / ----2.0---
5.
 
Nikon D60Y- / ----2.0---
6.
 
Nikon D80Y- / ----2.0---
7.
 
Nikon D3000Y- / ----2.0---
8.
 
Nikon D5000Ymono / mono--mini2.0---
9.
 
Nikon D7000Ymono / monoY-mini2.0---
10.
 
Nikon D7100Ystereo / monoYYmini2.0---
11.
 
Nikon D7200Ystereo / monoYYmini2.0YY-
12.
 
Nikon D7500Ystereo / monoYYmini2.0Y-Y
13.
 
Olympus E-M10Ystereo / mono--micro2.0Y--
14.
 
Olympus E-P5Ystereo / mono--micro2.0Y--
15.
 
Panasonic G6Ystereo / monoY-mini2.0YY-
16.
 
Panasonic GH2Ystereo / monoY-mini2.0---
17.
 
Panasonic GX1Ystereo / mono--mini2.0---

It is notable that the GX7 offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the D90 does not provide wifi capability.

Both the D90 and the GX7 have been discontinued, but can regularly be found used on ebay. The D90 was replaced by the Nikon D7000, while the GX7 was followed by the Panasonic GX85. Further information on the features and operation of the D90 and GX7 can be found, respectively, in the Nikon D90 Manual (free pdf) or the online Panasonic GX7 Manual.

Review summary

So what is the bottom line? Is there a clear favorite between the Nikon D90 and the Panasonic GX7? 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 D90:

  • Better low-light sensitivity: Requires less light for good images (0.4 stops ISO advantage).
  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • Easier setting verification: Features an LCD display on top to control shooting parameters.
  • Longer lasting: Can take more shots (850 versus 350) on a single battery charge.
  • More heavily discounted: Has been available for much longer (launched in August 2008).

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Reasons to prefer the Panasonic Lumix DMC-GX7:

  • 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 96%).
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.70x vs 0.63x).
  • More detailed LCD: Has a higher resolution rear screen (1040k vs 920k 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.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • 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 (123x71mm vs 132x103mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 301g or 43 percent) and is thus easier to take along.
  • Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
  • More legacy lens friendly: Can use many non-native lenses via adapters.
  • Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
  • Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
  • Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
  • More affordable: Was released into a lower priced segment (23 percent cheaper at launch).
  • More modern: Reflects 4 years and 11 months of technical progress since the D90 launch.

If the number of relative strengths (bullet points above) is taken as a guide, the GX7 is the clear winner of the contest (20 : 5 points). However, the relevance of individual strengths will vary across photographers, so that you might want to apply your own weighing scheme to the summary points when reflecting and deciding on a new camera. A professional 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.

D90 05:20 GX7

How about other alternatives? Do the specifications of the Nikon D90 and the Panasonic GX7 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 partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the D90 or the GX7. 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 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
  empty  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price
Street
Price
1.
 
Nikon D90..+ +..+ +4/54.5/5 Aug 2008 US$ 1 299ebay.com
2.
 
Panasonic GX74/5+..79/1005/55/5 Aug 2013 US$ 999ebay.com
3.
 
Canon 40D..+ +..+ +4.5/54.5/5 Aug 2007 US$ 1 299ebay.com
4.
 
Nikon D40X..79/100..+ +4/54/5 Mar 2007 US$ 729ebay.com
5.
 
Nikon D60..80/100..+ +4/54.5/5 Jan 2008 US$ 629ebay.com
6.
 
Nikon D80..+..+ +o4.5/5 Aug 2006 US$ 999ebay.com
7.
 
Nikon D3000..+..72/1004/54.5/5 Jul 2009 US$ 599ebay.com
8.
 
Nikon D5000..+ +..75/1004/54.5/5 Apr 2009 US$ 749ebay.com
9.
 
Nikon D70004/5....80/1004.5/54.5/5 Sep 2010 US$ 1 499ebay.com
10.
 
Nikon D71005/5+ +..85/1004.5/54.5/5 Feb 2013 US$ 1 199ebay.com
11.
 
Nikon D72004/5+ +..84/1004.5/54.5/5 Mar 2015 US$ 1 199ebay.com
12.
 
Nikon D75004.5/5+ +4.5/586/1005/54.5/5 Apr 2017 US$ 1 299 amazon.com
13.
 
Olympus E-M104/5....80/1005/55/5 Jan 2014 US$ 699ebay.com
14.
 
Olympus E-P55/5+ +..78/1004.5/55/5 May 2013 US$ 999ebay.com
15.
 
Panasonic G64/5+ +....5/54.5/5 Apr 2013 US$ 599ebay.com
16.
 
Panasonic GH25/5+ +..79/1004.5/55/5 Sep 2010 US$ 899ebay.com
17.
 
Panasonic GX13/5+..77/1004.5/54.5/5 Nov 2011 US$ 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. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and comparisons of ratings among very different cameras or across long time periods 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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Check D90 offers at
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Check GX7 offers at
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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 D90 vs Panasonic GX7

    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 D90 Panasonic GX7
    Camera Type Digital single lens reflex Mirrorless system camera
    Camera Lens Nikon F mount lenses Micro Four Thirds lenses
    Launch Date August 2008 August 2013
    Launch Price USD 1,299 USD 999
    Sensor Specs Nikon D90 Panasonic GX7
    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 125 - 25,600 ISO
    ISO Boost 200 - 6,400 ISO no Enhancement
    Image Processor EXPEED Venus
    DXO Sensor Quality (score) 73 70
    DXO Color Depth (bits) 22.7 22.6
    DXO Dynamic Range (EV) 12.5 12.2
    DXO Low Light (ISO) 977 718
    Screen Specs Nikon D90 Panasonic GX7
    Viewfinder Type Optical viewfinder Electronic viewfinder
    Viewfinder Field of View 96% 100%
    Viewfinder Magnification 0.63x 0.70x
    Viewfinder Resolution 2760k dots
    Top-Level Screen Control Panel no Top Display
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 920k dots 1040k dots
    LCD Attachment Fixed screen Tilting screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Nikon D90 Panasonic GX7
    Focus System Phase-detect AF Contrast-detect AF
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/4000s 1/8000s
    Continuous Shooting 4.5 shutter flaps/s 5 shutter flaps/s
    Electronic Shutterno E-Shutterup to 1/8000s
    Time-Lapse Photographyno IntervalometerIntervalometer built-in
    Image StabilizationLens stabilization onlyIn-body stabilization
    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 D90 Panasonic GX7
    External Flash Hotshoe Hotshoe
    USB Connector USB 2.0 USB 2.0
    HDMI Port mini HDMI mini HDMI
    Wifi Support no Wifi Wifi built-in
    Near-Field Communication no NFC NFC built-in
    Body Specs Nikon D90 Panasonic GX7
    Battery Type Nikon EN-EL3e Panasonic DMW-BLG10
    Battery Life (CIPA)850 shots per charge350 shots per charge
    Body Dimensions 132 x 103 x 77 mm
    (5.2 x 4.1 x 3.0 in)
    123 x 71 x 55 mm
    (4.8 x 2.8 x 2.2 in)
    Camera Weight 703 g (24.8 oz) 402 g (14.2 oz)
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    Check D90 offers at
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    Check GX7 offers at
    ebay.com

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