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Sony A5100 vs A7R II

The Sony Alpha A5100 and the Sony Alpha A7R II are two digital cameras that were revealed to the public, respectively, in August 2014 and June 2015. Both the A5100 and the A7R II are mirrorless interchangeable lens cameras that are based on an APS-C (A5100) and a full frame (A7R II) sensor. The A5100 has a resolution of 24 megapixels, whereas the A7R II provides 42.2 MP.

Below is an overview of the main specs of the two cameras as a starting point for the comparison.

Headline Specifications
Sony A5100
versus
Sony A7R II
Sony A5100   Sony A7R II
Mirrorless system camera Mirrorless system camera
Sony E mount lenses Sony E mount lenses
24 MP – APS-C sensor 42.2 MP – Full Frame sensor
1080/60p Video 4K/30p Video
ISO 100-25,600 ISO 100-25,600 (50 - 102,400)
No viewfinder, LCD framing Electronic viewfinder (2400k dots)
3.0" LCD – 922k dots 3.0" LCD – 1229k dots
Tilting touchscreen Tilting screen (no touchscreen)
6 shutter flaps per second 5 shutter flaps per second
Lens stabilization onlyIn-body stabilization
not weather sealedWeathersealed body
400 shots per battery charge290 shots per battery charge
110 x 63 x 36 mm, 283 g 127 x 96 x 60 mm, 625 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Sony Alpha A5100 and the Sony Alpha A7R II? 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 Sony A5100 and the Sony A7R II 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 width, height and depth measures are rounded to the nearest millimeter.

The A5100 can be obtained in two different colors (black, white), while the A7R II is only available in black.

Size Sony A5100 vs Sony A7R II
Compare A5100 versus A7R II top
Comparison A5100 or A7R II rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A7R II is considerably larger (76 percent) than the Sony A5100. Moreover, the A7R II is substantially heavier (121 percent) than the A5100. It is noteworthy in this context that the A7R II is splash and dust-proof, while the A5100 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 Sony E-Mount Lens Catalog (A5100) and the Sony FE Lens Catalog (A7R II). Mirrorless cameras, such as the two under consideration, have the additional advantage of having a short flange to focal plane distance, which makes it possible to mount many lenses from other systems onto the camera via adapters.

The battery packs of both cameras can be charged via USB, which can be very convenient when travelling.

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.
 
Sony A5100 110 mm 63 mm 36 mm 283 g 400 n Aug 2014 US$ 549ebay.com
2.
 
Sony A7R II 127 mm 96 mm 60 mm 625 g 290 Y Jun 2015 US$ 3 199ebay.com
3.
 
Sony A7R 127 mm 94 mm 48 mm 465 g 340 Y Oct 2013 US$ 2 299ebay.com
4.
 
Sony A7R III 127 mm 96 mm 74 mm 650 g 650 Y Oct 2017 US$ 3 199ebay.com
5.
 
Sony A7R IIIA 127 mm 96 mm 74 mm 650 g 650 Y Apr 2021 US$ 3 199 amazon.com
6.
 
Sony A7S II 127 mm 96 mm 60 mm 627 g 370 Y Sep 2015 US$ 2 999ebay.com
7.
 
Sony A99 II 143 mm 104 mm 76 mm 849 g 490 Y Sep 2016 US$ 3 199ebay.com
8.
 
Sony A3000 128 mm 91 mm 85 mm 411 g 470 n Aug 2013 US$ 329ebay.com
9.
 
Sony A5000 110 mm 63 mm 36 mm 269 g 420 n Jan 2014 US$ 449ebay.com
10.
 
Sony A6000 120 mm 67 mm 45 mm 344 g 360 n Feb 2014 US$ 599ebay.com
11.
 
Sony NEX-3 117 mm 62 mm 33 mm 297 g 330 n May 2010 US$ 599ebay.com
12.
 
Sony NEX-3N 110 mm 62 mm 35 mm 269 g 480 n Feb 2013 US$ 499ebay.com
13.
 
Sony NEX-5T 111 mm 59 mm 39 mm 276 g 330 n Aug 2013 US$ 699ebay.com
14.
 
Sony NEX-F3 117 mm 67 mm 42 mm 314 g 470 n May 2012 US$ 599ebay.com
15.
 
Sony RX100 102 mm 58 mm 36 mm 240 g 330 n Jun 2012 US$ 649ebay.com
16.
 
Sony RX100 II 102 mm 58 mm 38 mm 281 g 350 n Jun 2013 US$ 749ebay.com
17.
 
Sony RX100 IV 102 mm 58 mm 41 mm 298 g 280 n Jun 2015 US$ 999ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.

Any camera decision will obviously take relative prices into account. 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 A5100 was launched at a markedly lower price (by 83 percent) than the A7R II, 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. 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. 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 tend to be associated with larger, more expensive camera bodies and lenses.

Of the two cameras under consideration, the Sony A5100 features an APS-C sensor and the Sony A7R II a full frame sensor. The sensor area in the A7R II is 135 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.5 and 1.0. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Sony A5100 and Sony A7R II sensor measures

With 42.2MP, the A7R II offers a higher resolution than the A5100 (24MP), but the A7R II nevertheless has larger individual pixels (pixel pitch of 4.52μm versus 3.91μm for the A5100) due to its larger sensor. Moreover, the A7R II is a somewhat more recent model (by 9 months) than the A5100, and its sensor might have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that the A7R II has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Sony A7R II implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A7R II for good quality output (200 dots per inch) amounts to 39.8 x 26.5 inches or 101 x 67.4 cm, for very good quality (250 dpi) 31.8 x 21.2 inches or 80.8 x 53.9 cm, and for excellent quality (300 dpi) 26.5 x 17.7 inches or 67.3 x 44.9 cm. The corresponding values for the Sony A5100 are 30 x 20 inches or 76.2 x 50.8 cm for good quality, 24 x 16 inches or 61 x 40.6 cm for very good quality, and 20 x 13.3 inches or 50.8 x 33.9 cm for excellent quality prints.

The Sony Alpha A5100 has a native sensitivity range from ISO 100 to ISO 25600. The corresponding ISO settings for the Sony Alpha A7R II are ISO 100 to ISO 25600, with the possibility to increase the ISO range to 50-102400.

In terms of underlying technology, the A5100 is build around a CMOS sensor, while the A7R II 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.

A5100 versus A7R II MP

Consistent information on actual sensor performance is available from DXO Mark for many cameras. 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 A7R II offers substantially better image quality than the A5100 (overall score 18 points higher). The advantage is based on 2.2 bits higher color depth, 1.2 EV in additional dynamic range, and 1.4 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
  empty Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Sony A5100 APS-C 24.0 6000 40001080/60p23.812.7134780
2.
 
Sony A7R II Full Frame 42.2 7952 53044K/30p26.013.9343498
3.
 
Sony A7R Full Frame 36.2 7360 49121080/60p25.614.1274695
4.
 
Sony A7R III Full Frame 42.2 7952 53044K/30p26.014.73523100
5.
 
Sony A7R IIIA Full Frame 42.2 7952 53044K/30p26.014.73523100
6.
 
Sony A7S II Full Frame 12.0 4240 28324K/30p23.613.3299385
7.
 
Sony A99 II Full Frame 42.2 7952 53044K/30p25.413.4231792
8.
 
Sony A3000 APS-C 19.8 5456 36321080/60i23.712.8106878
9.
 
Sony A5000 APS-C 19.8 5456 36321080/60i23.813.0108979
10.
 
Sony A6000 APS-C 24.0 6000 40001080/60p24.113.1134782
11.
 
Sony NEX-3 APS-C 14.0 4592 3056720/30p22.112.083068
12.
 
Sony NEX-3N APS-C 16.0 4912 32641080/60i22.812.5106774
13.
 
Sony NEX-5T APS-C 16.0 4912 32641080/60p23.613.0101578
14.
 
Sony NEX-F3 APS-C 16.0 4912 32641080/60i22.712.3111473
15.
 
Sony RX100 1-inch 20.0 5472 36481080/60p22.612.439066
16.
 
Sony RX100 II 1-inch 20.0 5472 36481080/60p22.512.448367
17.
 
Sony RX100 IV 1-inch 20.0 5472 36484K/30p22.812.659170

Many modern cameras are not only capable of taking still images, but can also record movies. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the A7R II provides a better video resolution than the A5100. It can shoot movie footage at 4K/30p, while the A5100 is limited to 1080/60p.

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Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. For example, the A7R II has an electronic viewfinder (2400k dots), which can be very helpful when shooting in bright sunlight. In contrast, the A5100 relies on live view and the rear LCD for framing. The following table reports on some other key feature differences and similarities of the Sony A5100, the Sony A7R II, and comparable 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.
 
Sony A5100none n3.0 / 922 tilting Y 1/4000s 6.0/s Y n
2.
 
Sony A7R II2400 n3.0 / 1229 tilting n 1/8000s 5.0/s n Y
3.
 
Sony A7R2400 n3.0 / 1230 tilting n 1/8000s 4.0/s n n
4.
 
Sony A7R III3686 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
5.
 
Sony A7R IIIA3686 n3.0 / 2340 tilting Y 1/8000s 10.0/s n Y
6.
 
Sony A7S II2400 n3.0 / 1229 tilting n 1/8000s 5.0/s n Y
7.
 
Sony A99 II2400 Y3.0 / 1229 full-flex n 1/8000s 12.0/s n Y
8.
 
Sony A3000202 n3.0 / 230 fixed n 1/4000s 2.5/s Y n
9.
 
Sony A5000none n3.0 / 461 tilting n 1/4000s 3.5/s Y n
10.
 
Sony A60001440 n3.0 / 922 tilting n 1/4000s 11.0/s Y n
11.
 
Sony NEX-3optional n3.0 / 920 tilting n 1/4000s 7.0/s n n
12.
 
Sony NEX-3Noptional n3.0 / 460 tilting n 1/4000s 4.0/s Y n
13.
 
Sony NEX-5Toptional n3.0 / 922 tilting Y 1/4000s 10.0/s n n
14.
 
Sony NEX-F3optional n3.0 / 920 tilting n 1/4000s 5.5/s Y n
15.
 
Sony RX100none n3.0 / 1229 fixed n 1/2000s 10.0/s Y Y
16.
 
Sony RX100 IIoptional n3.0 / 1229 tilting n 1/2000s 10.0/s Y Y
17.
 
Sony RX100 IV2359 n3.0 / 1228 tilting n 1/2000s 16.0/s Y Y
Note: *) 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 A5100 has one, while the A7R II does not. While the built-in flash of the A5100 is not very powerful, it can at times be useful as a fill-in light.

The A5100 has an articulated LCD that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in snapping selfies. In contrast, the A7R II 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 A7R II 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).

Concerning the storage of imaging data, both the A5100 and the A7R II write their files to SDXC or Memory Stick PRO Duo cards. 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 Sony Alpha A5100 and Sony Alpha A7R II 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.
 
Sony A5100-stereo / mono--micro2.0YY-
2.
 
Sony A7R IIYstereo / monoYYmicro2.0YY-
3.
 
Sony A7RYstereo / monoYYmicro2.0YY-
4.
 
Sony A7R IIIYstereo / monoYYmicro3.1YYY
5.
 
Sony A7R IIIAYstereo / monoYYmicro3.2YYY
6.
 
Sony A7S IIYstereo / monoYYmicro2.0YY-
7.
 
Sony A99 IIYstereo / monoYYmicro2.0YYY
8.
 
Sony A3000Ystereo / mono--mini2.0---
9.
 
Sony A5000-stereo / mono--micro2.0YY-
10.
 
Sony A6000Ystereo / mono--micro2.0YY-
11.
 
Sony NEX-3Ystereo / mono--mini2.0---
12.
 
Sony NEX-3N-stereo / mono--micro2.0---
13.
 
Sony NEX-5TYstereo / mono--mini2.0YY-
14.
 
Sony NEX-F3Ystereo / mono--mini2.0---
15.
 
Sony RX100-stereo / mono--micro2.0---
16.
 
Sony RX100 IIYstereo / mono--micro2.0YY-
17.
 
Sony RX100 IV-stereo / mono--micro2.0YY-

It is notable that the A7R II has a headphone jack, which makes it possible to attach external headphones and monitor the quality of sound during the recording process. The A5100 lacks such a headphone port.

Both the A5100 and the A7R II have been discontinued, but can regularly be found used on ebay. The A7R II was replaced by the Sony A7R III, while the A5100 does not have a direct successor. Further information on the features and operation of the A5100 and A7R II can be found, respectively, in the Sony A5100 Manual (free pdf) or the online Sony A7R II Manual.

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Review summary

So what conclusions can be drawn? Which of the two cameras – the Sony A5100 or the Sony A7R II – has the upper hand? Is one clearly better than the other? Below is a summary of the relative strengths of each of the two contestants.


Reasons to prefer the Sony Alpha A5100:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • Faster burst: Shoots at higher frequency (6 vs 5 flaps/sec) to capture the decisive moment.
  • More compact: Is smaller (110x63mm vs 127x96mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 342g or 55 percent) and hence easier to carry around.
  • Longer lasting: Can take more shots (400 versus 290) on a single battery charge.
  • Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
  • More affordable: Was introduced into a lower priced category (83 percent cheaper at launch).
  • More heavily discounted: Has been on the market for longer (launched in August 2014).


Arguments in favor of the Sony Alpha A7R II:

  • More detail: Has more megapixels (42.2 vs 24MP), which boosts linear resolution by 33%.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Better image quality: Scores substantially higher (18 points) in the DXO overall evaluation.
  • Richer colors: Generates noticeably more natural colors (2.2 bits more color depth).
  • More dynamic range: Captures a broader range of light and dark details (1.2 EV of extra DR).
  • Better low-light sensitivity: Can shoot in dim conditions (1.4 stops ISO advantage).
  • Better video: Provides higher definition movie capture (4K/30p vs 1080/60p).
  • 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.
  • Easier framing: Has an electronic viewfinder for image composition and settings control.
  • More detailed LCD: Has a higher resolution rear screen (1229k vs 922k dots).
  • 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.
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
  • Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
  • Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
  • More modern: Was introduced somewhat (9 months) more recently.

If the number of relative strengths (bullet points above) is taken as a guide, the A7R II is the clear winner of the contest (17 : 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 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.

A5100 10:17 A7R II

How about other alternatives? Do the specifications of the Sony A5100 and the Sony A7R II place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera listing 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 A5100 or the A7R II. 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 following table reports the overall ratings of the cameras as published by some of the major 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
  empty  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price
Street
Price
1.
 
Sony A51004.5/5+....4.5/55/5 Aug 2014 US$ 549ebay.com
2.
 
Sony A7R II5/5+ +5/590/1005/55/5 Jun 2015 US$ 3 199ebay.com
3.
 
Sony A7R5/5+ +..82/1004.5/55/5 Oct 2013 US$ 2 299ebay.com
4.
 
Sony A7R III..+ +4/590/1004.5/55/5 Oct 2017 US$ 3 199ebay.com
5.
 
Sony A7R IIIA..+ +4/590/1004.5/55/5 Apr 2021 US$ 3 199 amazon.com
6.
 
Sony A7S II5/5+....4.5/55/5 Sep 2015 US$ 2 999ebay.com
7.
 
Sony A99 II....4.5/585/1004.5/54.5/5 Sep 2016 US$ 3 199ebay.com
8.
 
Sony A30003/5+....4/54/5 Aug 2013 US$ 329ebay.com
9.
 
Sony A50003/5+....4.5/54.5/5 Jan 2014 US$ 449ebay.com
10.
 
Sony A60005/5+4.5/580/1004.5/55/5 Feb 2014 US$ 599ebay.com
11.
 
Sony NEX-3......70/1004.5/54/5 May 2010 US$ 599ebay.com
12.
 
Sony NEX-3N3/5......4.5/54.5/5 Feb 2013 US$ 499ebay.com
13.
 
Sony NEX-5T........4.5/54.5/5 Aug 2013 US$ 699ebay.com
14.
 
Sony NEX-F34/5....74/1004.5/54.5/5 May 2012 US$ 599ebay.com
15.
 
Sony RX1005/5+ +..78/1004/55/5 Jun 2012 US$ 649ebay.com
16.
 
Sony RX100 II5/5+ +..79/1004.5/54.5/5 Jun 2013 US$ 749ebay.com
17.
 
Sony RX100 IV4.5/5+ +..85/1004/54.5/5 Jun 2015 US$ 999ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

Care should be taken when interpreting the review scores above, 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 comparisons of ratings among very different cameras or across long time periods 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? In case you are interested in seeing how other cameras pair up, just make a corresponding selection in the search boxes below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Sony A5100 vs Sony A7R II

    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 Sony A5100 Sony A7R II
    Camera Type Mirrorless system camera Mirrorless system camera
    Camera Lens Sony E mount lenses Sony E mount lenses
    Launch Date August 2014 June 2015
    Launch Price USD 549 USD 3,199
    Sensor Specs Sony A5100 Sony A7R II
    Sensor Technology CMOS BSI-CMOS
    Sensor Format APS-C Sensor Full Frame Sensor
    Sensor Size 23.5 x 15.6 mm 35.9 x 24.0 mm
    Sensor Area 366.6 mm2 861.6 mm2
    Sensor Diagonal 28.2 mm 43.2 mm
    Crop Factor 1.5x 1.0x
    Sensor Resolution 24 Megapixels 42.2 Megapixels
    Image Resolution 6000 x 4000 pixels 7952 x 5304 pixels
    Pixel Pitch 3.91 μm 4.52 μm
    Pixel Density 6.55 MP/cm2 4.90 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability 1080/60p Video 4K/30p Video
    ISO Setting 100 - 25,600 ISO 100 - 25,600 ISO
    ISO Boost no Enhancement 50 - 102,400 ISO
    Image Processor BIONZ X BIONZ X
    DXO Sensor Quality (score) 80 98
    DXO Color Depth (bits) 23.8 26.0
    DXO Dynamic Range (EV) 12.7 13.9
    DXO Low Light (ISO) 1347 3434
    Screen Specs Sony A5100 Sony A7R II
    Viewfinder Type no viewfinder Electronic viewfinder
    Viewfinder Field of View 100%
    Viewfinder Magnification 0.78x
    Viewfinder Resolution 2400k dots
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 922k dots 1229k dots
    LCD Attachment Tilting screen Tilting screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Sony A5100 Sony A7R II
    Focus System On-Sensor Phase-detect On-Sensor Phase-detect
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/4000s 1/8000s
    Continuous Shooting 6 shutter flaps/s 5 shutter flaps/s
    Electronic Shutterno E-ShutterYES
    Image StabilizationLens stabilization onlyIn-body stabilization
    Fill Flash Built-in Flash no On-Board Flash
    Storage Medium MS or SDXC cards MS or SDXC cards
    Single or Dual Card Slots Single card slot Single card slot
    UHS card support UHS-I UHS-I
    Connectivity Specs Sony A5100 Sony A7R II
    External Flash no Hotshoe Hotshoe
    USB Connector USB 2.0 USB 2.0
    HDMI Port micro HDMI micro HDMI
    Microphone Port no MIC socket External MIC port
    Headphone Socket no Headphone port Headphone port
    Wifi Support Wifi built-in Wifi built-in
    Near-Field Communication NFC built-in NFC built-in
    Body Specs Sony A5100 Sony A7R II
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type Sony NP-FW50 Sony NP-FW50
    Battery Life (CIPA)400 shots per charge290 shots per charge
    In-Camera Charging USB charging USB charging
    Body Dimensions 110 x 63 x 36 mm
    (4.3 x 2.5 x 1.4 in)
    127 x 96 x 60 mm
    (5.0 x 3.8 x 2.4 in)
    Camera Weight 283 g (10.0 oz) 625 g (22.0 oz)
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    Check A5100 offers at
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    Check A7R II offers at
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