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Nikon D7100 vs Sony RX100 III

The Nikon D7100 and the Sony Cyber-shot DSC-RX100 III are two digital cameras that were revealed to the public, respectively, in February 2013 and May 2014. The D7100 is a DSLR, while the RX100 III is a fixed lens compact. The cameras are based on an APS-C (D7100) and an one-inch (RX100 III) sensor. The Nikon has a resolution of 24 megapixels, whereas the Sony provides 20 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
Sony RX100 III
Nikon D7100   Sony RX100 III
Digital single lens reflex Fixed lens compact camera
Nikon F mount lenses 24-70mm f/1.8-2.8
24 MP – APS-C sensor 20 MP – 1" sensor
1080/60p Video 1080/60p Video
ISO 100-6,400 (50 - 25,600) ISO 100-12,800 (80 - 25,600)
Optical viewfinder Electronic viewfinder (1440k dots)
3.2" LCD – 1229k dots 3.0" LCD – 1229k dots
Fixed screen (not touch-sensitive) Tilting screen (no touchscreen)
6 shutter flaps per second 10 shutter flaps per second
Weathersealed bodynot weather sealed
950 shots per battery charge320 shots per battery charge
136 x 107 x 76 mm, 765 g 102 x 58 x 41 mm, 290 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon D7100 and the Sony Cyber-shot DSC-RX100 III? 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 D7100 and the Sony RX100 III 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.

Size Nikon D7100 vs Sony RX100 III
Compare D7100 versus RX100 III top
Comparison D7100 or RX100 III rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony RX100 III is considerably smaller (59 percent) than the Nikon D7100. It is worth mentioning in this context that the D7100 is splash and dust resistant, while the RX100 III does not feature any corresponding weather-sealing.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the RX100 III has a lens built in, whereas the D7100 is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup. You can compare the optics available for the D7100 and their specifications in the Nikon Lens Catalog.

Concerning battery life, the D7100 gets 950 shots out of its Nikon EN-EL15 battery, while the RX100 III can take 320 images on a single charge of its Sony NP-BX1 power pack. The power pack in the RX100 III can be charged via the USB port, which can be very convenient when travelling.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. 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
# image 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 1,199ebay.com
2.
 
Sony RX100 III 102 mm 58 mm 41 mm 290 g 320 n May 2014 799ebay.com
3.
 
Canon G7 X 103 mm 60 mm 40 mm 304 g 210 n Sep 2014 699ebay.com
4.
 
Canon 70D 139 mm 104 mm 79 mm 755 g 920 Y Jul 2013 1,199ebay.com
5.
 
Nikon D7500 136 mm 104 mm 73 mm 720 g 950 Y Apr 2017 1,299 amazon.com
6.
 
Nikon D500 147 mm 115 mm 81 mm 860 g 1240 Y Jan 2016 1,999ebay.com
7.
 
Nikon D7200 136 mm 107 mm 76 mm 765 g 1110 Y Mar 2015 1,199ebay.com
8.
 
Nikon D750 141 mm 113 mm 78 mm 750 g 1230 Y Sep 2014 2,299ebay.com
9.
 
Nikon D3300 124 mm 98 mm 76 mm 430 g 700 n Jan 2014 499ebay.com
10.
 
Nikon D610 141 mm 113 mm 82 mm 850 g 900 Y Oct 2013 1,999ebay.com
11.
 
Nikon D600 141 mm 113 mm 82 mm 850 g 900 Y Sep 2012 2,099ebay.com
12.
 
Nikon D7000 132 mm 105 mm 77 mm 780 g 1050 Y Sep 2010 1,499ebay.com
13.
 
Sony RX100 VII 102 mm 58 mm 43 mm 302 g 260 n Jul 2019 1,199 amazon.com
14.
 
Sony RX100 IV 102 mm 58 mm 41 mm 298 g 280 n Jun 2015 999ebay.com
15.
 
Sony RX10 129 mm 88 mm 102 mm 813 g 420 Y Oct 2013 1,299ebay.com
16.
 
Sony RX100 II 102 mm 58 mm 38 mm 281 g 350 n Jun 2013 749ebay.com
17.
 
Sony RX100 102 mm 58 mm 36 mm 240 g 330 n Jun 2012 649ebay.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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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 RX100 III was launched at a lower price than the D7100, despite having a lens built in. 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 imaging sensor is a crucial determinant 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. 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 D7100 features an APS-C sensor and the Sony RX100 III an one-inch sensor. The sensor area in the RX100 III is 68 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.5 and 2.7. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Nikon D7100 and Sony RX100 III sensor measures

With 24MP, the D7100 offers a higher resolution than the RX100 III (20MP), but the D7100 nevertheless has larger individual pixels (pixel pitch of 3.91μm versus 2.41μm for the RX100 III) due to its larger sensor. However, the RX100 III is a somewhat more recent model (by 1 year and 2 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 Sony RX100 III are 27.4 x 18.2 inches or 69.5 x 46.3 cm for good quality, 21.9 x 14.6 inches or 55.6 x 37.1 cm for very good quality, and 18.2 x 12.2 inches or 46.3 x 30.9 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 Sony Cyber-shot DSC-RX100 III are ISO 100 to ISO 12800, with the possibility to increase the ISO range to 80-25600.

In terms of underlying technology, the D7100 is build around a CMOS sensor, while the RX100 III uses a BSI-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.

D7100 versus RX100 III MP

For many cameras, data on sensor performance has been reported by DXO Mark. This service determines an overall sensor rating, as well as sub-scores for low-light sensitivity ("DXO Sports"), dynamic range ("DXO Landscape"), and color depth ("DXO Portrait"). Of the two cameras under review, the D7100 provides substantially higher image quality than the RX100 III, with an overall score that is 16 points higher. This advantage is based on 1.8 bits higher color depth, 1.4 EV in additional dynamic range, and 1.3 stops in additional low light sensitivity. The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.

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Sensor Characteristics
# image 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.
 
Sony RX100 III 1-inch 20.0 5472 36481080/60p22.412.349567
3.
 
Canon G7 X 1-inch 20.0 5472 36481080/60p23.012.755671
4.
 
Canon 70D APS-C 20.0 5472 36481080/30p22.511.692668
5.
 
Nikon D7500 APS-C 20.7 5568 37124K/30p24.314.0148386
6.
 
Nikon D500 APS-C 20.7 5568 37124K/30p24.014.0132483
7.
 
Nikon D7200 APS-C 24.0 6000 40001080/60p24.514.6133387
8.
 
Nikon D750 Full Frame 24.2 6016 40161080/60p24.814.5295693
9.
 
Nikon D3300 APS-C 24.0 6000 40001080/60p24.312.8138582
10.
 
Nikon D610 Full Frame 24.2 6016 40161080/30p25.114.4292594
11.
 
Nikon D600 Full Frame 24.2 6016 40161080/30p25.114.2298094
12.
 
Nikon D7000 APS-C 16.1 4928 32641080/24p23.513.9116780
13.
 
Sony RX100 VII 1-inch 20.0 5472 36484K/30p21.812.441863
14.
 
Sony RX100 IV 1-inch 20.0 5472 36484K/30p22.812.659170
15.
 
Sony RX10 1-inch 20.0 5472 36481080/60p22.912.647469
16.
 
Sony RX100 II 1-inch 20.0 5472 36481080/60p22.512.448367
17.
 
Sony RX100 1-inch 20.0 5472 36481080/60p22.612.439066
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Many modern cameras are not only capable of taking still images, but also of capturing video footage. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, and both provide the same movie specifications (1080/60p).

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Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. For example, the RX100 III has an electronic viewfinder (1440k 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 RX100 III (0.63x vs 0.59x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The adjacent table lists some of the other core features of the Nikon D7100 and Sony RX100 III along with similar information for a selection of comparators.

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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 D7100optical Y3.2 / 1229 fixed n 1/8000s 6.0/s Y n
2.
 
Sony RX100 III1440 n3.0 / 1229 tilting n 1/2000s 10.0/s Y Y
3.
 
Canon G7 Xnone n3.0 / 1040 tilting Y 1/2000s 6.5/s Y Y
4.
 
Canon 70Doptical Y3.0 / 1040 swivel Y 1/8000s 7.0/s Y n
5.
 
Nikon D7500optical Y3.2 / 922 tilting Y 1/8000s 8.0/s Y n
6.
 
Nikon D500optical Y3.2 / 2359 tilting Y 1/8000s 10.0/s n n
7.
 
Nikon D7200optical Y3.2 / 1229 fixed n 1/8000s 6.0/s Y n
8.
 
Nikon D750optical Y3.2 / 1229 tilting n 1/4000s 6.0/s Y n
9.
 
Nikon D3300optical n3.0 / 921 fixed n 1/4000s 5.0/s Y n
10.
 
Nikon D610optical Y3.2 / 921 fixed n 1/4000s 6.0/s Y n
11.
 
Nikon D600optical Y3.0 / 921 fixed n 1/4000s 5.5/s Y n
12.
 
Nikon D7000optical Y3.0 / 921 fixed n 1/8000s 6.0/s Y n
13.
 
Sony RX100 VII2359 n3.0 / 921 tilting Y 1/2000s 90.0/s Y Y
14.
 
Sony RX100 IV2359 n3.0 / 1228 tilting n 1/2000s 16.0/s Y Y
15.
 
Sony RX101440 Y3.0 / 1229 tilting n 1/3200s 10.0/s Y Y
16.
 
Sony RX100 IIoptional n3.0 / 1229 tilting n 1/2000s 10.0/s Y Y
17.
 
Sony RX100none n3.0 / 1229 fixed n 1/2000s 10.0/s Y Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.
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One feature that is present on the D7100, but is missing on the RX100 III 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 RX100 III 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 D7100 does not have a selfie-screen.

The Nikon D7100 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 D7100 writes its imaging data to SDXC cards, while the RX100 III uses SDXC or Memory Stick PRO Duo cards. The D7100 features dual card slots, which can be very useful in case a memory card fails. In contrast, the RX100 III 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.

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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 D7100 and Sony Cyber-shot DSC-RX100 III 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 D7100Ystereo / monoYYmini2.0---
2.
 
Sony RX100 III-stereo / mono--micro2.0YY-
3.
 
Canon G7 X-stereo / mono--micro2.0YY-
4.
 
Canon 70DYstereo / monoY-mini2.0Y--
5.
 
Nikon D7500Ystereo / monoYYmini2.0Y-Y
6.
 
Nikon D500Ystereo / monoYYmini3.0YYY
7.
 
Nikon D7200Ystereo / monoYYmini2.0YY-
8.
 
Nikon D750Ystereo / monoYYmini2.0Y--
9.
 
Nikon D3300Ymono / monoY-mini2.0---
10.
 
Nikon D610Ymono / monoYYmini2.0---
11.
 
Nikon D600Ymono / monoYYmini2.0---
12.
 
Nikon D7000Ymono / monoY-mini2.0---
13.
 
Sony RX100 VII-stereo / monoY-micro2.0YYY
14.
 
Sony RX100 IV-stereo / mono--micro2.0YY-
15.
 
Sony RX10Ystereo / monoYYmicro2.0YY-
16.
 
Sony RX100 IIYstereo / mono--micro2.0YY-
17.
 
Sony RX100-stereo / mono--micro2.0---
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It is notable that the D7100 has a hotshoe, while the RX100 III does not. This socket makes it possible to easily attach optional accessories, such as an external flash gun.

Both the D7100 and the RX100 III have been discontinued, but can regularly be found used on ebay. The D7100 was replaced by the Nikon D7200, while the RX100 III was followed by the Sony RX100 IV. Further information on the features and operation of the D7100 and RX100 III can be found, respectively, in the Nikon D7100 Manual (free pdf) or the online Sony RX100 III Manual.

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Review summary

So how do things add up? Which of the two cameras – the Nikon D7100 or the Sony RX100 III – has the upper hand? Is one clearly better than the other? The listing below highlights the relative strengths of the two models.

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Advantages of the Nikon D7100:

  • More detail: Offers more megapixels (24 vs 20MP) with a 10% higher linear resolution.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Better image quality: Scores substantially higher (16 points) in the DXO overall assessment.
  • Richer colors: Generates images with noticeably better colors (1.8 bits more color depth).
  • More dynamic range: Captures a larger spectrum of light and dark details (1.4 EV of extra DR).
  • Better low-light sensitivity: Requires less light for good images (1.3 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 0.59x).
  • 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.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/2000s) to freeze action.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • More flexible: Can take a variety of interchangeable lenses, including specialty optics.
  • Longer lasting: Can take more shots (950 versus 320) on a single battery charge.
  • Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
  • Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
  • 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).

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Arguments in favor of the Sony Cyber-shot DSC-RX100 III:

  • 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.
  • More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • Faster burst: Shoots at higher frequency (10 vs 6 flaps/sec) to capture the decisive moment.
  • Ready to shoot: Comes with an integrated lens, while the D7100 requires a separate lens.
  • More compact: Is smaller (102x58mm vs 136x107mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight even though it has a lens built in (unlike the D7100).
  • Easier travel charging: Can be conveniently charged via its USB port.
  • Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
  • 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.
  • More affordable: Was introduced at a lower price, despite coming with a built-in lens.
  • More modern: Was introduced somewhat (1 year and 2 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 (20 : 14 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 wildlife photographer will view the differences between cameras in a way that diverges from the perspective of a family photog, and a person interested in architecture has distinct needs from a sports shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

D7100 20:14 RX100 III

How about other alternatives? Do the specifications of the Nikon D7100 and the Sony RX100 III place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Travel-Zoom 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 D7100 or the RX100 III perform in practice. User reviews that are available, for instance, at amazon can sometimes shed light on these issues, but such feedback is all too often partial, inconsistent, and inaccurate.

Expert reviews

This is why expert reviews are important. 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
# image  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 1,199ebay.com
2.
 
Sony RX100 III5/5+ +..82/1004.5/55/5 May 2014 799ebay.com
3.
 
Canon G7 X4/5+ +..77/1004.5/54.5/5 Sep 2014 699ebay.com
4.
 
Canon 70D5/5+ +..83/1004.5/55/5 Jul 2013 1,199ebay.com
5.
 
Nikon D75004.5/5+ +4.5/586/1005/54.5/5 Apr 2017 1,299 amazon.com
6.
 
Nikon D5005/5+ +4.7/591/1004.5/55/5 Jan 2016 1,999ebay.com
7.
 
Nikon D72004/5+ +..84/1004.5/54.5/5 Mar 2015 1,199ebay.com
8.
 
Nikon D7505/5+ +4/590/1004.5/54.5/5 Sep 2014 2,299ebay.com
9.
 
Nikon D33003/5+..77/1004.5/54.5/5 Jan 2014 499ebay.com
10.
 
Nikon D6104/5+ +..87/1004.5/54.5/5 Oct 2013 1,999ebay.com
11.
 
Nikon D6004/5+ +..87/1005/54.5/5 Sep 2012 2,099ebay.com
12.
 
Nikon D70004/5....80/1004.5/54.5/5 Sep 2010 1,499ebay.com
13.
 
Sony RX100 VII4.5/5..4/5..4/55/5 Jul 2019 1,199 amazon.com
14.
 
Sony RX100 IV4.5/5+ +..85/1004/54.5/5 Jun 2015 999ebay.com
15.
 
Sony RX105/5+..80/1004.5/54.5/5 Oct 2013 1,299ebay.com
16.
 
Sony RX100 II5/5+ +..79/1004.5/54.5/5 Jun 2013 749ebay.com
17.
 
Sony RX1005/5+ +..78/1004/55/5 Jun 2012 649ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.
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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 rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

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Other camera comparisons

Did this review help to inform your camera decision process? 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 D7100 vs Sony RX100 III

    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 Sony RX100 III
    Camera Type Digital single lens reflex Fixed lens compact camera
    Camera Lens Nikon F mount lenses 24-70mm f/1.8-2.8
    Launch Date February 2013 May 2014
    Launch Price USD 1,199 USD 799
    Sensor Specs Nikon D7100 Sony RX100 III
    Sensor Technology CMOS BSI-CMOS
    Sensor Format APS-C Sensor 1" Sensor
    Sensor Size 23.5 x 15.6 mm 13.2 x 8.8 mm
    Sensor Area 366.6 mm2 116.16 mm2
    Sensor Diagonal 28.2 mm 15.9 mm
    Crop Factor 1.5x 2.7x
    Sensor Resolution 24 Megapixels 20 Megapixels
    Image Resolution 6000 x 4000 pixels 5472 x 3648 pixels
    Pixel Pitch 3.91 μm 2.41 μm
    Pixel Density 6.55 MP/cm2 17.18 MP/cm2
    Moiré control no AA filter Anti-Alias filter
    Movie Capability 1080/60p Video 1080/60p Video
    ISO Setting 100 - 6,400 ISO 100 - 12,800 ISO
    ISO Boost 50 - 25,600 ISO 80 - 25,600 ISO
    Image Processor EXPEED 4 BIONZ X
    DXO Sensor Quality (score) 83 67
    DXO Color Depth (bits) 24.2 22.4
    DXO Dynamic Range (EV) 13.7 12.3
    DXO Low Light (ISO) 1256 495
    Screen Specs Nikon D7100 Sony RX100 III
    Viewfinder Type Optical viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.63x 0.59x
    Viewfinder Resolution 1440k 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 1229k dots
    LCD Attachment Fixed screen Tilting screen
    Shooting Specs Nikon D7100 Sony RX100 III
    Focus System Phase-detect AF Contrast-detect AF
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/8000s 1/2000s
    Continuous Shooting 6 shutter flaps/s 10 shutter flaps/s
    Time-Lapse PhotographyIntervalometer built-inno Intervalometer
    Fill Flash Built-in Flash Built-in Flash
    Storage Medium SDXC cards MS or SDXC cards
    Single or Dual Card Slots Dual card slots Single card slot
    UHS card support UHS-I UHS-I
    Connectivity Specs Nikon D7100 Sony RX100 III
    External Flash Hotshoe no 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
    Near-Field Communication no NFC NFC built-in
    Body Specs Nikon D7100 Sony RX100 III
    Environmental SealingWeathersealed bodynot weather sealed
    Battery Type Nikon EN-EL15 Sony NP-BX1
    Battery Life (CIPA)950 shots per charge320 shots per charge
    In-Camera Charging no USB charging USB charging
    Body Dimensions 136 x 107 x 76 mm
    (5.4 x 4.2 x 3.0 in)
    102 x 58 x 41 mm
    (4.0 x 2.3 x 1.6 in)
    Camera Weight 765 g (27.0 oz) 290 g (10.2 oz)
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    Check D7100 offers at
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    Check RX100 III offers at
    ebay.com

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