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Nikon D5500 vs Sony A7S III

The Nikon D5500 and the Sony Alpha 7S III are two digital cameras that were revealed to the public, respectively, in January 2015 and July 2020. The D5500 is a DSLR, while the A7S III is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (D5500) and a full frame (A7S III) sensor. The Nikon has a resolution of 24 megapixels, whereas the Sony provides 12 MP.

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

Headline Specifications
Nikon D5500
versus
Sony A7S III
Nikon D5500   Sony A7S III
Digital single lens reflex Mirrorless system camera
Nikon F mount lenses Sony E mount lenses
24 MP – APS-C sensor 12 MP – Full Frame sensor
1080/60p Video 4K/120p Video
ISO 100-25,600 ISO 80-102,400 (40 - 409,600)
Optical viewfinder Electronic viewfinder (9440k dots)
3.2" LCD – 1037k dots 3.0" LCD – 1440k dots
Swivel touchscreen Swivel touchscreen
5 shutter flaps per second 10 shutter flaps per second
Lens stabilization onlyIn-body stabilization
not weather sealedWeathersealed body
820 shots per battery charge600 shots per battery charge
124 x 97 x 70 mm, 470 g 127 x 97 x 81 mm, 699 g
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Check D5500 offers at
ebay.com
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Check A7S III price at
amazon.com

Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon D5500 and the Sony Alpha 7S 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 D5500 and the Sony A7S III are illustrated in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive views from the front, the top, and the rear side are shown. All width, height and depth dimensions are rounded to the nearest millimeter.

The D5500 can be obtained in two different colors (black, red), while the A7S III is only available in black.

Size Nikon D5500 vs Sony A7S III
Compare D5500 versus A7S III top
Comparison D5500 or A7S III rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A7S III is somewhat larger (2 percent) than the Nikon D5500. Moreover, the A7S III is substantially heavier (49 percent) than the D5500. It is noteworthy in this context that the A7S III is splash and dust-proof, while the D5500 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 (D5500) and the Sony FE Lens Catalog (A7S III). Mirrorless cameras, such as the A7S III, 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 D5500 gets 820 shots out of its Nikon EN-EL14a battery, while the A7S III can take 600 images on a single charge of its Sony NP-FZ100 power pack. The power pack in the A7S III can be charged via the USB port, 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. In case you want to display and compare another camera duo, you can use the CAM-parator app to select your camera combination among a large number of options.

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Body Specifications
# image Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Nikon D5500 124 mm 97 mm 70 mm 470 g 820 n Jan 2015 899ebay.com
2.
 
Sony A7S III 127 mm 97 mm 81 mm 699 g 600 Y Jul 2020 3,499 amazon.com
3.
 
Canon M5 116 mm 89 mm 61 mm 427 g 295 n Sep 2016 979ebay.com
4.
 
Canon 750D 132 mm 101 mm 78 mm 555 g 440 n Feb 2015 749ebay.com
5.
 
Nikon D5600 124 mm 97 mm 70 mm 465 g 970 n Nov 2016 699ebay.com
6.
 
Nikon D3400 124 mm 98 mm 76 mm 445 g 1200 n Aug 2016 499ebay.com
7.
 
Nikon D3300 124 mm 98 mm 76 mm 430 g 700 n Jan 2014 499ebay.com
8.
 
Nikon D5300 125 mm 98 mm 76 mm 480 g 600 n Oct 2013 799ebay.com
9.
 
Nikon D3200 125 mm 96 mm 77 mm 505 g 540 n Apr 2012 599ebay.com
10.
 
Nikon D5200 129 mm 98 mm 78 mm 555 g 500 n Nov 2012 749ebay.com
11.
 
Nikon D5100 128 mm 97 mm 79 mm 560 g 660 n Apr 2011 749ebay.com
12.
 
Samsung NX30 127 mm 96 mm 58 mm 375 g 360 n Jan 2014 999ebay.com
13.
 
Sony A7R IVA 129 mm 96 mm 78 mm 665 g 670 Y Apr 2021 3,499 amazon.com
14.
 
Sony A9 II 129 mm 96 mm 76 mm 678 g 690 Y Oct 2019 4,499 amazon.com
15.
 
Sony A7R IV 129 mm 96 mm 78 mm 665 g 670 Y Jul 2019 3,499ebay.com
16.
 
Sony A7R III 127 mm 96 mm 74 mm 650 g 650 Y Oct 2017 3,199ebay.com
17.
 
Sony A7S II 127 mm 96 mm 60 mm 627 g 370 Y Sep 2015 2,999ebay.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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Any camera decision will naturally be influenced heavily by the price. 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 D5500 was launched at a markedly lower price (by 74 percent) than the A7S III, 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 imaging sensor is a crucial determinant 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. Moreover, a large sensor camera will give the photographer more control over depth-of-field in the image and, thus, the ability to better 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 D5500 features an APS-C sensor and the Sony A7S III a full frame sensor. The sensor area in the A7S III is 131 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.

Nikon D5500 and Sony A7S III sensor measures

Despite having a smaller sensor, the Nikon D5500 offers a higher resolution of 24 megapixels, compared with 12 MP of the Sony A7S III. 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 3.91μm versus 8.40μm for the A7S III). Moreover, it should be noted that the A7S III is much more recent (by 5 years and 6 months) than the D5500, and its sensor will 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 D5500 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Nikon D5500 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the D5500 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 A7S III are 21.2 x 14.2 inches or 53.8 x 36 cm for good quality, 17 x 11.3 inches or 43.1 x 28.8 cm for very good quality, and 14.1 x 9.4 inches or 35.9 x 24 cm for excellent quality prints.

The A7S III has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Nikon D5500 has a native sensitivity range from ISO 100 to ISO 25600. The corresponding ISO settings for the Sony Alpha 7S III are ISO 80 to ISO 102400, with the possibility to increase the ISO range to 40-409600.

In terms of underlying technology, the D5500 is build around a CMOS sensor, while the A7S 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.

D5500 versus A7S III 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 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
# image Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Nikon D5500 APS-C 24.0 6000 40001080/60p24.114.0143884
2.
 
Sony A7S III Full Frame 12.0 4240 28324K/120p23.713.9252086
3.
 
Canon M5 APS-C 24.0 6000 40001080/60p23.412.4126277
4.
 
Canon 750D APS-C 24.0 6000 40001080/30p22.712.091971
5.
 
Nikon D5600 APS-C 24.0 6000 40001080/60p24.114.0130684
6.
 
Nikon D3400 APS-C 24.0 6000 40001080/60p24.813.9119286
7.
 
Nikon D3300 APS-C 24.0 6000 40001080/60p24.312.8138582
8.
 
Nikon D5300 APS-C 24.0 6000 40001080/60p24.013.9133883
9.
 
Nikon D3200 APS-C 24.1 6016 40001080/30p24.113.2113181
10.
 
Nikon D5200 APS-C 24.0 6000 40001080/60i24.213.9128484
11.
 
Nikon D5100 APS-C 16.1 4928 32641080/30p23.513.6118380
12.
 
Samsung NX30 APS-C 20.0 5472 36481080/60p23.512.4101476
13.
 
Sony A7R IVA Full Frame 60.2 9504 63364K/30p26.014.8334499
14.
 
Sony A9 II Full Frame 24.0 6000 40004K/30p25.014.0343493
15.
 
Sony A7R IV Full Frame 60.2 9504 63364K/30p26.014.8334499
16.
 
Sony A7R III Full Frame 42.2 7952 53044K/30p26.014.73523100
17.
 
Sony A7S II Full Frame 12.0 4240 28324K/30p23.613.3299385
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Many modern cameras are not only capable of taking still images, but can also record movies. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the A7S III provides a better video resolution than the D5500. It can shoot movie footage at 4K/120p, while the Nikon 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 A7S III has an electronic viewfinder (9440k dots), while the D5500 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 A7S III offers a wider field of view (100%) than the one in the D5500 (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the A7S III has a higher magnification (0.91x vs 0.57x), 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 D5500 and Sony A7S 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 D5500optical n3.2 / 1037 swivel Y 1/4000s 5.0/s Y n
2.
 
Sony A7S III9440 n3.0 / 1440 swivel Y 1/8000s 10.0/s n Y
3.
 
Canon M52360 n3.2 / 1620 tilting Y 1/4000s 9.0/s Y n
4.
 
Canon 750Doptical n3.0 / 1040 swivel Y 1/4000s 5.0/s Y n
5.
 
Nikon D5600optical n3.2 / 1037 swivel Y 1/4000s 5.0/s Y n
6.
 
Nikon D3400optical n3.0 / 921 fixed n 1/4000s 5.0/s Y n
7.
 
Nikon D3300optical n3.0 / 921 fixed n 1/4000s 5.0/s Y n
8.
 
Nikon D5300optical n3.2 / 1037 swivel n 1/4000s 5.0/s Y n
9.
 
Nikon D3200optical n3.0 / 921 fixed n 1/4000s 4.0/s Y n
10.
 
Nikon D5200optical n3.0 / 921 swivel n 1/4000s 5.0/s Y n
11.
 
Nikon D5100optical n3.0 / 921 swivel n 1/4000s 4.0/s Y n
12.
 
Samsung NX302359 n3.0 / 1036 swivel Y 1/8000s 9.0/s Y n
13.
 
Sony A7R IVA5760 n3.0 / 2340 tilting Y 1/8000s 10.0/s n Y
14.
 
Sony A9 II3686 n3.0 / 1440 tilting Y 1/8000s 20.0/s n Y
15.
 
Sony A7R IV5760 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
16.
 
Sony A7R III3686 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
17.
 
Sony A7S II2400 n3.0 / 1229 tilting n 1/8000s 5.0/s n Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.
padding

One difference between the cameras concerns the presence of an on-board flash. The D5500 has one, while the A7S III does not. While the built-in flash of the D5500 is not very powerful, it can at times be useful as a fill-in light.

Both cameras have an articulated rear screen that can be turned to be front-facing. This feature will be particularly appreciated by vloggers and photographers who are interested in taking selfies.

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 A7S III 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 D5500 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 D5500 writes its imaging data to SDXC cards, while the A7S III uses CFexpress (type A) or SDXC cards. The A7S III features dual card slots, which can be very useful in case a memory card fails. In contrast, the D5500 only has one slot. The A7S III supports UHS-II cards (on both slots), while the D5500 can use UHS-I cards.

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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 D5500 and Sony Alpha 7S 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 D5500Ystereo / monoY-mini2.0Y--
2.
 
Sony A7S IIIYstereo / monoYYfull3.2Y-Y
3.
 
Canon M5Ystereo / monoY-mini2.0YYY
4.
 
Canon 750DYstereo / monoY-mini2.0YY-
5.
 
Nikon D5600Ystereo / monoY-mini2.0YYY
6.
 
Nikon D3400Ymono / mono--mini2.0--Y
7.
 
Nikon D3300Ymono / monoY-mini2.0---
8.
 
Nikon D5300Ystereo / monoY-mini2.0Y--
9.
 
Nikon D3200Ymono / monoY-mini2.0---
10.
 
Nikon D5200Ystereo / monoY-mini2.0---
11.
 
Nikon D5100Ymono / monoY-mini2.0---
12.
 
Samsung NX30Ystereo / mono--micro2.0YY-
13.
 
Sony A7R IVAYstereo / monoYYmicro3.2YYY
14.
 
Sony A9 IIYstereo / monoYYmicro3.1YYY
15.
 
Sony A7R IVYstereo / monoYYmicro3.1YYY
16.
 
Sony A7R IIIYstereo / monoYYmicro3.1YYY
17.
 
Sony A7S IIYstereo / monoYYmicro2.0YY-
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It is notable that the A7S III has a headphone jack, which makes it possible to attach external headphones and monitor the quality of sound during the recording process. The D5500 lacks such a headphone port.

The A7S III is a recent model that features in the current product line-up of Sony. In contrast, the D5500 has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the D5500 was succeeded by the Nikon D5600. Further information on the features and operation of the D5500 and A7S III can be found, respectively, in the Nikon D5500 Manual (free pdf) or the online Sony A7S III Manual.

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Review summary

So what conclusions can be drawn? Is the Nikon D5500 better than the Sony A7S III or vice versa? A synthesis of the relative strong points of each of the models is listed below.

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Advantages of the Nikon D5500:

  • More detail: Offers more megapixels (24 vs 12MP) with a 41% higher linear resolution.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • Larger screen: Has a bigger rear LCD (3.2" vs 3.0") for image review and settings control.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • Less heavy: Is lighter (by 229g or 33 percent) and hence easier to carry around.
  • Longer lasting: Can take more shots (820 versus 600) 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 (74 percent cheaper at launch).
  • More heavily discounted: Has been available for much longer (launched in January 2015).

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Arguments in favor of the Sony Alpha 7S III:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Better low-light sensitivity: Can shoot in dim conditions (0.8 stops ISO advantage).
  • Better video: Provides higher definition movie capture (4K/120p vs 1080/60p).
  • Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
  • Better sound control: Has a headphone port that enables audio monitoring while recording.
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • More complete view: Has a viewfinder with a larger field of view (100% vs 95%).
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.91x vs 0.57x).
  • More detailed LCD: Has a higher resolution rear screen (1440k vs 1037k dots).
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • Faster burst: Shoots at higher frequency (10 vs 5 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • 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.
  • More legacy lens friendly: Can use many non-native lenses via adapters.
  • Faster data transfer: Supports a more advanced USB protocol (3.2 vs 2.0).
  • More solid recording: Has a full-sized HDMI port for a sturdy connection to an external recorder.
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
  • Faster buffer clearing: Supports a more advanced SD data transfer standard (UHS-II vs UHS-I).
  • More modern: Reflects 5 years and 6 months of technical progress since the D5500 launch.

If the count of individual advantages (bullet points above) is taken as a guide, the A7S III is the clear winner of the contest (22 : 10 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 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.

D5500 10:22 A7S III

How about other alternatives? Do the specifications of the Nikon D5500 and the Sony A7S III place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Mirrorless Interchangeable Lens Camera listings whether the two cameras rank among the cream of the crop.

In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it remains incomplete and does no justice, for example, to the way the D5500 or the A7S III perform in practice. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.

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
# image  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Nikon D55005/5+..79/1004.5/54.5/5 Jan 2015 899ebay.com
2.
 
Sony A7S III4.5/5+ +5/591/1004.5/55/5 Jul 2020 3,499 amazon.com
3.
 
Canon M54/5+4/582/1004/54/5 Sep 2016 979ebay.com
4.
 
Canon 750D5/5....75/1004.5/54.5/5 Feb 2015 749ebay.com
5.
 
Nikon D56004/5..4/579/1004.5/54/5 Nov 2016 699ebay.com
6.
 
Nikon D34004/5+4/576/1004/54.5/5 Aug 2016 499ebay.com
7.
 
Nikon D33003/5+..77/1004.5/54.5/5 Jan 2014 499ebay.com
8.
 
Nikon D53004/5+ +..79/1004.5/54.5/5 Oct 2013 799ebay.com
9.
 
Nikon D32005/5+ +..73/1004.5/54.5/5 Apr 2012 599ebay.com
10.
 
Nikon D52004/5+ +..79/1004.5/54.5/5 Nov 2012 749ebay.com
11.
 
Nikon D51005/5+ +..76/1004.5/54.5/5 Apr 2011 749ebay.com
12.
 
Samsung NX303/5....77/1004.5/54.5/5 Jan 2014 999ebay.com
13.
 
Sony A7R IVA5/5+4.5/591/1004.5/55/5 Apr 2021 3,499 amazon.com
14.
 
Sony A9 II....5/590/1005/55/5 Oct 2019 4,499 amazon.com
15.
 
Sony A7R IV5/5+4.5/591/1004.5/55/5 Jul 2019 3,499ebay.com
16.
 
Sony A7R III..+ +4/590/1004.5/55/5 Oct 2017 3,199ebay.com
17.
 
Sony A7S II5/5+....4.5/55/5 Sep 2015 2,999ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.
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The above review scores should be interpreted with care, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. 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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Check D5500 offers at
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Check A7S III price at
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Other camera comparisons

Did this review help to inform your camera decision process? In case you would like to check on the differences and similarities of other camera models, just make your choice using the following search menu. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Nikon D5500 vs Sony A7S 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 D5500 Sony A7S III
    Camera Type Digital single lens reflex Mirrorless system camera
    Camera Lens Nikon F mount lenses Sony E mount lenses
    Launch Date January 2015 July 2020
    Launch Price USD 899 USD 3,499
    Sensor Specs Nikon D5500 Sony A7S III
    Sensor Technology CMOS BSI-CMOS
    Sensor Format APS-C Sensor Full Frame Sensor
    Sensor Size 23.5 x 15.6 mm 35.6 x 23.8 mm
    Sensor Area 366.6 mm2 847.28 mm2
    Sensor Diagonal 28.2 mm 42.8 mm
    Crop Factor 1.5x 1.0x
    Sensor Resolution 24 Megapixels 12 Megapixels
    Image Resolution 6000 x 4000 pixels 4240 x 2832 pixels
    Pixel Pitch 3.91 μm 8.40 μm
    Pixel Density 6.55 MP/cm2 1.42 MP/cm2
    Moiré control no AA filter Anti-Alias filter
    Movie Capability 1080/60p Video 4K/120p Video
    ISO Setting 100 - 25,600 ISO 80 - 102,400 ISO
    ISO Boost no Enhancement 40 - 409,600 ISO
    Image Processor EXPEED 4 BIONZ XR
    DXO Sensor Quality (score) 84 86
    DXO Color Depth (bits) 24.1 23.7
    DXO Dynamic Range (EV) 14.0 13.9
    DXO Low Light (ISO) 1438 2520
    Screen Specs Nikon D5500 Sony A7S III
    Viewfinder Type Optical viewfinder Electronic viewfinder
    Viewfinder Field of View 95% 100%
    Viewfinder Magnification 0.57x 0.91x
    Viewfinder Resolution 9440k dots
    LCD Framing Live View Live View
    Rear LCD Size 3.2inch 3.0inch
    LCD Resolution 1037k dots 1440k dots
    LCD Attachment Swivel screen Swivel screen
    Touch Input Touchscreen Touchscreen
    Shooting Specs Nikon D5500 Sony A7S III
    Focus System Phase-detect AF On-Sensor Phase-detect
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/4000s 1/8000s
    Continuous Shooting 5 shutter flaps/s 10 shutter flaps/s
    Shutter Life Expectancy100 000 actuations200 000 actuations
    Electronic Shutterno E-ShutterYES
    Time-Lapse PhotographyIntervalometer built-inno Intervalometer
    Image StabilizationLens stabilization onlyIn-body stabilization
    Fill Flash Built-in Flash no On-Board Flash
    Storage Medium SDXC cards CFexA or SDXC cards
    Single or Dual Card Slots Single card slot Dual card slots
    UHS card support UHS-I Dual UHS-II
    Connectivity Specs Nikon D5500 Sony A7S III
    External Flash Hotshoe Hotshoe
    USB Connector USB 2.0 USB 3.2
    HDMI Port mini HDMI full HDMI
    Microphone Port External MIC port External MIC port
    Headphone Socket no Headphone port Headphone port
    Wifi Support Wifi built-in Wifi built-in
    Bluetooth Support no Bluetooth Bluetooth built-in
    Body Specs Nikon D5500 Sony A7S III
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type Nikon EN-EL14a Sony NP-FZ100
    Battery Life (CIPA)820 shots per charge600 shots per charge
    In-Camera Charging no USB charging USB charging
    Body Dimensions 124 x 97 x 70 mm
    (4.9 x 3.8 x 2.8 in)
    127 x 97 x 81 mm
    (5.0 x 3.8 x 3.2 in)
    Camera Weight 470 g (16.6 oz) 699 g (24.7 oz)
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