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Nikon D7100 vs Panasonic GM5

The Nikon D7100 and the Panasonic Lumix DMC-GM5 are two digital cameras that were announced, respectively, in February 2013 and September 2014. The D7100 is a DSLR, while the GM5 is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (D7100) and a Four Thirds (GM5) sensor. The Nikon has a resolution of 24 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 D7100
versus
Panasonic GM5
Nikon D7100   Panasonic GM5
Digital single lens reflex Mirrorless system camera
Nikon F mount lenses Micro Four Thirds lenses
24 MP – APS-C sensor 15.8 MP – Four Thirds sensor
1080/60p Video 1080/60p Video
ISO 100-6,400 (50 - 25,600) ISO 200-25,600
Optical viewfinder Electronic viewfinder (1166k dots)
3.2" LCD – 1229k dots 3.2" LCD – 921k dots
Fixed screen (not touch-sensitive) Fixed touchscreen
6 shutter flaps per second 5.8 shutter flaps per second
Weathersealed bodynot weather sealed
950 shots per battery charge220 shots per battery charge
136 x 107 x 76 mm, 765 g 99 x 60 x 36 mm, 211 g
Nikon D7100:
Check Ebay offers
Panasonic GM5:
Check Ebay offers

Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon D7100 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.

Body comparison

The side-by-side display below illustrates the physical size and weight of the Nikon D7100 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 size dimensions are rounded to the nearest millimeter.

The GM5 can be obtained in two different colors (black, silver), while the D7100 is only available in black.

Size Nikon D7100 vs Panasonic GM5
Compare D7100 versus GM5 top
Comparison D7100 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 (59 percent) than the Nikon D7100. Moreover, the GM5 is substantially lighter (72 percent) than the D7100. It is worth mentioning in this context that the D7100 is splash and dust resistant, while the GM5 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 (D7100) 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 D7100 gets 950 shots out of its EN-EL15 battery, while the GM5 can take 220 images on a single charge of its DMW-BLH7 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
    Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Nikon D7100 136 mm 107 mm 76 mm 765 g 950 Y Feb 2013 1,199i
2.
 
Panasonic GM5 99 mm 60 mm 36 mm 211 g 220 n Sep 2014 749i
3.
 
Canon 70D 139 mm 104 mm 79 mm 755 g 920 Y Jul 2013 1,199i
4.
 
Nikon D7500 136 mm 104 mm 73 mm 720 g 950 Y Apr 2017 1,299 i
5.
 
Nikon D500 147 mm 115 mm 81 mm 860 g 1240 Y Jan 2016 1,999 i
6.
 
Nikon D7200 136 mm 107 mm 76 mm 765 g 1110 Y Mar 2015 1,199i
7.
 
Nikon D750 141 mm 113 mm 78 mm 750 g 1230 Y Sep 2014 2,299i
8.
 
Nikon D3300 124 mm 98 mm 76 mm 430 g 700 n Jan 2014 499i
9.
 
Nikon D610 141 mm 113 mm 82 mm 850 g 900 Y Oct 2013 1,999 i
10.
 
Nikon D600 141 mm 113 mm 82 mm 850 g 900 Y Sep 2012 2,099i
11.
 
Nikon D7000 132 mm 105 mm 77 mm 780 g 1050 Y Sep 2010 1,499i
12.
 
Panasonic G7 125 mm 86 mm 77 mm 410 g 350 n May 2015 649i
13.
 
Panasonic G6 122 mm 85 mm 71 mm 390 g 340 n Apr 2013 599i
14.
 
Panasonic GM1 99 mm 55 mm 30 mm 204 g 230 n Oct 2013 749i
15.
 
Panasonic GX1 116 mm 68 mm 39 mm 318 g 320 n Nov 2011 699i
16.
 
Panasonic GH2 124 mm 90 mm 76 mm 442 g 330 n Sep 2010 899i
17.
 
Sony RX10 129 mm 88 mm 102 mm 813 g 420 Y Oct 2013 1,299i
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 GM5 was launched at a markedly lower price (by 38 percent) than the D7100, 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 size of the sensor inside a digital camera is one of the key determinants of image quality. A large sensor will tend to have larger individual pixels that provide better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixel-units in a sensor of the same technological generation. 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 associated with larger, more expensive camera bodies and lenses.

Of the two cameras under consideration, the Nikon D7100 features an APS-C sensor and the Panasonic GM5 a Four Thirds sensor. The sensor area in the GM5 is 39 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 D7100 has a native 3:2 aspect ratio, while the one in the GM5 offers a 4:3 aspect.

Nikon D7100 and Panasonic GM5 sensor measures

With 24MP, the D7100 offers a higher resolution than the GM5 (15.8MP), but the D7100 nevertheless has larger individual pixels (pixel pitch of 3.91μm versus 3.77μm for the GM5) due to its larger sensor. However, the GM5 is a somewhat more recent model (by 1 year and 6 months) than the D7100, and its sensor might have benefitted from technological advances during this time that enhance the light gathering capacity of its pixels. Coming back to sensor resolution, it should be mentioned that the D7100 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Nikon D7100 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the D7100 for good quality output (200 dots per inch) amounts to 30 x 20 inches or 76.2 x 50.8 cm, for very good quality (250 dpi) 24 x 16 inches or 61 x 40.6 cm, and for excellent quality (300 dpi) 20 x 13.3 inches or 50.8 x 33.9 cm. The corresponding values for the Panasonic GM5 are 23 x 17.2 inches or 58.3 x 43.8 cm for good quality, 18.4 x 13.8 inches or 46.7 x 35 cm for very good quality, and 15.3 x 11.5 inches or 38.9 x 29.2 cm for excellent quality prints.

The Nikon D7100 has a native sensitivity range from ISO 100 to ISO 6400, which can be extended to ISO 50-25600. 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.

D7100 versus GM5 MP

For many cameras, data on sensor performance has been reported by DXO Mark. 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 review, the D7100 provides substantially higher image quality than the GM5, with an overall score that is 17 points higher. This advantage is based on 2.1 bits higher color depth, 2 EV in additional dynamic range, and 0.8 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
    Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Nikon D7100 APS-C 24.0 6000 40001080/60p24.213.7125683
2.
 
Panasonic GM5 Four Thirds 15.8 4592 34481080/60p22.111.772166
3.
 
Canon 70D APS-C 20.0 5472 36481080/30p22.511.692668
4.
 
Nikon D7500 APS-C 20.7 5568 37124K/30p24.314.0148386
5.
 
Nikon D500 APS-C 20.7 5568 37124K/30p24.014.0132483
6.
 
Nikon D7200 APS-C 24.0 6000 40001080/60p24.514.6133387
7.
 
Nikon D750 Full Frame 24.2 6016 40161080/60p24.814.5295693
8.
 
Nikon D3300 APS-C 24.0 6000 40001080/60p24.312.8138582
9.
 
Nikon D610 Full Frame 24.2 6016 40161080/30p25.114.4292594
10.
 
Nikon D600 Full Frame 24.2 6016 40161080/30p25.114.2298094
11.
 
Nikon D7000 APS-C 16.1 4928 32641080/24p23.513.9116780
12.
 
Panasonic G7 Four Thirds 15.8 4592 34484K/30p22.812.490471
13.
 
Panasonic G6 Four Thirds 15.9 4608 34561080/60p21.311.563961
14.
 
Panasonic GM1 Four Thirds 15.8 4592 34481080/60i22.311.766066
15.
 
Panasonic GX1 Four Thirds 15.8 4592 34481080/60p20.810.670355
16.
 
Panasonic GH2 Four Thirds 15.9 4608 34561080/60i21.211.365560
17.
 
Sony RX10 1-inch 20.0 5472 36481080/60p22.912.647469
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. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, and both provide the same movie specifications (1080/60p).

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 D7100 has an optical one. Both systems have their advantages, with the electronic viewfinder making it possible to project supplementary shooting information into the framing view, whereas the optical viewfinder offers lag-free viewing and a very clear framing image. The viewfinders of both cameras offer the same field of view (100%), but the viewfinder of the D7100 has a higher magnification than the one of the GM5 (0.63x 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 D7100 and Panasonic GM5 in connection with corresponding information for a sample of similar cameras.

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Core Features
    Camera
Model
Viewfinder
(Type or
000 dots)
Control
Panel
(yes/no)
LCD
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 D7100optical Y3.2 / 1229 fixed n 1/8000s 6.0/s Y n
2.
 
Panasonic GM51166 n3.0 / 921 fixed Y 1/500s 5.8/s n n
3.
 
Canon 70Doptical Y3.0 / 1040 swivel Y 1/8000s 7.0/s Y n
4.
 
Nikon D7500optical Y3.2 / 922 tilting Y 1/8000s 8.0/s Y n
5.
 
Nikon D500optical Y3.2 / 2359 tilting Y 1/8000s 10.0/s n n
6.
 
Nikon D7200optical Y3.2 / 1229 fixed n 1/8000s 6.0/s Y n
7.
 
Nikon D750optical Y3.2 / 1229 tilting n 1/4000s 6.0/s Y n
8.
 
Nikon D3300optical n3.0 / 921 fixed n 1/4000s 5.0/s Y n
9.
 
Nikon D610optical Y3.2 / 921 fixed n 1/4000s 6.0/s Y n
10.
 
Nikon D600optical Y3.0 / 921 fixed n 1/4000s 5.5/s Y n
11.
 
Nikon D7000optical Y3.0 / 921 fixed n 1/8000s 6.0/s Y n
12.
 
Panasonic G72360 n3.0 / 1040 swivel Y 1/4000s 7.0/s Y n
13.
 
Panasonic G61440 n3.0 / 1036 swivel Y 1/4000s 7.0/s Y n
14.
 
Panasonic GM1none n3.0 / 1036 fixed Y 1/500s 5.0/s Y n
15.
 
Panasonic GX1optional n3.0 / 460 fixed Y 1/4000s 4.2/s Y n
16.
 
Panasonic GH21534 n3.0 / 460 swivel n 1/4000s 3.0/s Y n
17.
 
Sony RX101440 Y3.0 / 1229 tilting n 1/3200s 10.0/s Y Y
Notes: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One difference between the cameras concerns the presence of an on-board flash. The D7100 has one, while the GM5 does not. While the built-in flash of the D7100 is not very powerful, it can at times be useful as a fill-in light.

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 D7100 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.

Concerning the storage of imaging data, both the D7100 and the GM5 write their files to SDXC cards. The D7100 features dual card slots, which can be very useful in case a memory card fails. In contrast, the GM5 only has one slot. Both cameras can use UHS-I cards, which provide for Ultra High Speed data transfer of up to 104 MB/s.

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 D7100 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
    Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Nikon D7100Ystereo / monoYYmini2.0---
2.
 
Panasonic GM5Ystereo / mono--micro2.0Y--
3.
 
Canon 70DYstereo / monoY-mini2.0Y--
4.
 
Nikon D7500Ystereo / monoYYmini2.0Y-Y
5.
 
Nikon D500Ystereo / monoYYmini3.0YYY
6.
 
Nikon D7200Ystereo / monoYYmini2.0YY-
7.
 
Nikon D750Ystereo / monoYYmini2.0Y--
8.
 
Nikon D3300Ymono / monoY-mini2.0---
9.
 
Nikon D610Ymono / monoYYmini2.0---
10.
 
Nikon D600Ymono / monoYYmini2.0---
11.
 
Nikon D7000Ymono / monoY-mini2.0---
12.
 
Panasonic G7Ystereo / monoY-micro2.0Y--
13.
 
Panasonic G6Ystereo / monoY-mini2.0YY-
14.
 
Panasonic GM1-stereo / mono--micro2.0Y--
15.
 
Panasonic GX1Ystereo / mono--mini2.0---
16.
 
Panasonic GH2Ystereo / monoY-mini2.0---
17.
 
Sony RX10Ystereo / monoYYmicro2.0YY-

It is notable that the D7100 has a microphone port, which is missing on the GM5. Such an external microphone input can help to substantially improve the quality of audio recordings when a good external microphone is used.

Both the D7100 and the GM5 have been discontinued, but can regularly be found used on eBay. The D7100 was replaced by the Nikon D7200, while the GM5 does not have a direct successor. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Nikon and Panasonic websites.

Review summary

So how do things add up? Is there a clear favorite between the Nikon D7100 and the Panasonic GM5? 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 D7100:

  • More detail: Offers more megapixels (24 vs 15.8MP) with a 26% higher linear resolution.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Better image quality: Scores substantially higher (17 points) in the DXO overall assessment.
  • Richer colors: Generates images with noticeably better colors (2.1 bits more color depth).
  • More dynamic range: Captures a larger spectrum of light and dark details (2 EV of extra DR).
  • Better low-light sensitivity: Requires less light for good images (0.8 stops ISO advantage).
  • Better sound: Can connect to an external microphone for higher quality sound recording.
  • Better sound control: Has a headphone port that enables audio monitoring while recording.
  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.63x vs 0.46x).
  • Easier setting verification: Features an LCD display on top to control shooting parameters.
  • Larger screen: Has a bigger rear LCD (3.2" vs 3.0") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (1229k vs 921k dots).
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/500s) to freeze action.
  • Longer lasting: Can take more shots (950 versus 220) on a single battery charge.
  • Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
  • Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
  • More heavily discounted: Has been on the market for longer (launched in February 2013).

ilogo

Advantages of the Panasonic Lumix DMC-GM5:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • More compact: Is smaller (99x60mm vs 136x107mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 554g or 72 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.
  • More affordable: Was introduced into a lower priced category (38 percent cheaper at launch).
  • More modern: Was introduced somewhat (1 year and 6 months) more recently.

If the count of relative strengths (bullet points above) is taken as a measure, the D7100 is the clear winner of the match-up (19 : 10 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.

D7100 19:10 GM5

How about other alternatives? Do the specifications of the Nikon D7100 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 partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the D7100 or the GM5. 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 where reviews by experts come in. The adjacent summary-table relays the overall verdicts of several of the most popular 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
     Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Nikon D71005/5+ +..85/1004.5/54.5/5 Feb 2013 1,199i
2.
 
Panasonic GM53.5/5+..77/1005/54.5/5 Sep 2014 749i
3.
 
Canon 70D5/5+ +..83/1004.5/55/5 Jul 2013 1,199i
4.
 
Nikon D75004.5/5+ +4.5/586/1005/54.5/5 Apr 2017 1,299 i
5.
 
Nikon D5005/5+ +4.7/591/1004.5/55/5 Jan 2016 1,999 i
6.
 
Nikon D72004/5+ +..84/1004.5/54.5/5 Mar 2015 1,199i
7.
 
Nikon D7505/5+ +4/590/1004.5/54.5/5 Sep 2014 2,299i
8.
 
Nikon D33003/5+..77/1004.5/54.5/5 Jan 2014 499i
9.
 
Nikon D6104/5+ +..87/1004.5/54.5/5 Oct 2013 1,999 i
10.
 
Nikon D6004/5+ +..87/1005/54.5/5 Sep 2012 2,099i
11.
 
Nikon D70004/5....80/1004.5/54.5/5 Sep 2010 1,499i
12.
 
Panasonic G74/5+ +..80/1005/54.5/5 May 2015 649i
13.
 
Panasonic G64/5+ +....5/54.5/5 Apr 2013 599i
14.
 
Panasonic GM13/5+..78/1005/54.5/5 Oct 2013 749i
15.
 
Panasonic GX13/5+..77/1004.5/54.5/5 Nov 2011 699i
16.
 
Panasonic GH25/5+ +..79/1004.5/55/5 Sep 2010 899i
17.
 
Sony RX105/5+..80/1004.5/54.5/5 Oct 2013 1,299i
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The review scores listed above should be treated with care, though. The assessments were made in relation to similar cameras of the same technological generation. 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.

Nikon D7100:
Check Ebay offers
Panasonic GM5:
Check Ebay offers

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 D7100 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 D7100 Panasonic GM5
    Camera Type Digital single lens reflex Mirrorless system camera
    Camera Lens Nikon F mount lenses Micro Four Thirds lenses
    Launch Date February 2013 September 2014
    Launch Price USD 1,199 USD 749
    Sensor Specs Nikon D7100 Panasonic GM5
    Sensor Technology CMOS CMOS
    Sensor Format APS-C Sensor Four Thirds Sensor
    Sensor Size 23.5 x 15.6 mm 17.3 x 13.0 mm
    Sensor Area 366.6 mm2 224.9 mm2
    Sensor Diagonal 28.2 mm 21.6 mm
    Crop Factor 1.5x 2.0x
    Sensor Resolution 24 Megapixels 15.8 Megapixels
    Image Resolution 6000 x 4000 pixels 4592 x 3448 pixels
    Pixel Pitch 3.91 μm 3.77 μm
    Pixel Density 6.55 MP/cm2 7.04 MP/cm2
    Moiré control no AA filter Anti-Alias filter
    Movie Capability 1080/60p Video 1080/60p Video
    ISO Setting 100 - 6,400 ISO 200 - 25,600 ISO
    ISO Boost 50 - 25,600 ISO 100 - 25,600 ISO
    Image Processor EXPEED 4 Venus
    DXO Sensor Quality (score) 83 66
    DXO Color Depth (bits) 24.2 22.1
    DXO Dynamic Range (EV) 13.7 11.7
    DXO Low Light (ISO) 1256 721
    Screen Specs Nikon D7100 Panasonic GM5
    Viewfinder Type Optical viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.63x 0.46x
    Viewfinder Resolution 1166k dots
    Top-Level Screen Control Panel no Top Display
    LCD Framing Live View Live View
    Rear LCD Size 3.2inch 3.0inch
    LCD Resolution 1229k dots 921k dots
    LCD Attachment Fixed screen Fixed screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Nikon D7100 Panasonic GM5
    Focus System Phase-detect AF Contrast-detect AF
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/8000s 1/500s
    Continuous Shooting 6 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 SDXC cards SDXC cards
    Second Storage Option Dual card slots Single card slot
    UHS card support UHS-I UHS-I
    Connectivity Specs Nikon D7100 Panasonic GM5
    External Flash Hotshoe Hotshoe
    USB Connector USB 2.0 USB 2.0
    HDMI Port mini HDMI micro HDMI
    Microphone Port External MIC port no MIC socket
    Headphone Socket Headphone port no Headphone port
    Wifi Support no Wifi Wifi built-in
    Body Specs Nikon D7100 Panasonic GM5
    Environmental SealingWeathersealed bodynot weather sealed
    Battery Type EN-EL15 DMW-BLH7
    Battery Life (CIPA)950 shots per charge220 shots per charge
    Body Dimensions 136 x 107 x 76 mm
    (5.4 x 4.2 x 3.0 in)
    99 x 60 x 36 mm
    (3.9 x 2.4 x 1.4 in)
    Camera Weight 765 g (27.0 oz) 211 g (7.4 oz)
    Nikon D7100:
    Check Ebay offers
    Panasonic GM5:
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