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Nikon D90 vs Sony A7S

The Nikon D90 and the Sony Alpha A7S are two digital cameras that were revealed to the public, respectively, in August 2008 and April 2014. The D90 is a DSLR, while the A7S is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (D90) and a full frame (A7S) sensor. The Nikon has a resolution of 12.2 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 D90
versus
Sony A7S
Nikon D90   Sony A7S
Digital single lens reflex Mirrorless system camera
Nikon F mount lenses Sony E mount lenses
12.2 MP – APS-C sensor 12 MP – Full Frame sensor
720/24p Video 1080/60p Video
ISO 200-3,200 (200 - 6,400) ISO 100-102,400 (50 - 409,600)
Optical viewfinder Electronic viewfinder (2400k dots)
3.0" LCD – 920k dots 3.0" LCD – 921k dots
Fixed screen (not touch-sensitive) Tilting screen (no touchscreen)
4.5 shutter flaps per second 5 shutter flaps per second
not weather sealedWeathersealed body
850 shots per battery charge380 shots per battery charge
132 x 103 x 77 mm, 703 g 127 x 94 x 48 mm, 489 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon D90 and the Sony Alpha A7S? 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 D90 and the Sony A7S. 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 measures are rounded to the nearest millimeter.

Size Nikon D90 vs Sony A7S
Compare D90 versus A7S top
Comparison D90 or A7S rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A7S is notably smaller (12 percent) than the Nikon D90. Moreover, the A7S is markedly lighter (30 percent) than the D90. It is noteworthy in this context that the A7S is splash and dust-proof, while the D90 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 (D90) and the Sony FE Lens Catalog (A7S). Mirrorless cameras, such as the A7S, have moreover the advantage that they can use many lenses from other systems via adapters, as they have a relatively short flange to focal plane distance.

Concerning battery life, the D90 gets 850 shots out of its EN-EL3e battery, while the A7S can take 380 images on a single charge of its NP-FW50 power pack. The power pack in the A7S 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. 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 D90 132 mm 103 mm 77 mm 703 g 850 n Aug 2008 1,299ebay.com
2.
 
Sony A7S 127 mm 94 mm 48 mm 489 g 380 Y Apr 2014 2,499ebay.com
3.
 
Canon 40D 146 mm 108 mm 74 mm 822 g 750 n Aug 2007 1,299ebay.com
4.
 
Nikon D7500 136 mm 104 mm 73 mm 720 g 950 Y Apr 2017 1,299 amazon.com
5.
 
Nikon D7200 136 mm 107 mm 76 mm 765 g 1110 Y Mar 2015 1,199ebay.com
6.
 
Nikon D750 141 mm 113 mm 78 mm 750 g 1230 Y Sep 2014 2,299ebay.com
7.
 
Nikon D7100 136 mm 107 mm 76 mm 765 g 950 Y Feb 2013 1,199ebay.com
8.
 
Nikon D7000 132 mm 105 mm 77 mm 780 g 1050 Y Sep 2010 1,499ebay.com
9.
 
Nikon D3000 126 mm 97 mm 64 mm 536 g 500 n Jul 2009 599ebay.com
10.
 
Nikon D5000 127 mm 104 mm 80 mm 590 g 510 n Apr 2009 749ebay.com
11.
 
Nikon D60 126 mm 94 mm 64 mm 522 g 500 n Jan 2008 629ebay.com
12.
 
Nikon D40X 124 mm 94 mm 64 mm 522 g 520 n Mar 2007 729ebay.com
13.
 
Nikon D80 132 mm 103 mm 77 mm 668 g 600 n Aug 2006 999ebay.com
14.
 
Sony A7S II 127 mm 96 mm 60 mm 627 g 370 Y Sep 2015 2,999ebay.com
15.
 
Sony A7 127 mm 94 mm 48 mm 474 g 340 Y Oct 2013 1,699ebay.com
16.
 
Sony A7R 127 mm 94 mm 48 mm 465 g 340 Y Oct 2013 2,299ebay.com
17.
 
Sony RX1R 113 mm 65 mm 70 mm 482 g 270 n Jun 2013 2,799ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.

The price is, of course, an important factor in any camera decision. The manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The D90 was launched at a markedly lower price (by 48 percent) than the A7S, 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 imaging sensor is at the core of digital cameras and its size is one of the main determining factors 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. 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Nikon D90 features an APS-C sensor and the Sony A7S a full frame sensor. The sensor area in the A7S is 129 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 D90 and Sony A7S sensor measures

Despite having a smaller sensor, the Nikon D90 offers a higher resolution of 12.2 megapixels, compared with 12 MP of the Sony A7S. 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 5.53μm versus 8.45μm for the A7S). Moreover, it should be noted that the A7S is much more recent (by 5 years and 7 months) than the D90, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixel-units.

The Nikon D90 has a native sensitivity range from ISO 200 to ISO 3200, which can be extended to ISO 200-6400. The corresponding ISO settings for the Sony Alpha A7S are ISO 100 to ISO 102400, with the possibility to increase the ISO range to 50-409600.

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

D90 versus A7S MP

Consistent information on actual sensor performance is available from DXO Mark for many cameras. 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 consideration, the A7S offers substantially better image quality than the D90 (overall score 14 points higher). The advantage is based on 1.2 bits higher color depth, 0.7 EV in additional dynamic range, and 1.9 stops in additional low light sensitivity. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.

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Sensor Characteristics
    Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Nikon D90 APS-C 12.2 4288 2848720/24p22.712.597773
2.
 
Sony A7S Full Frame 12.0 4240 28321080/60p23.913.2370287
3.
 
Canon 40D APS-C 10.1 3888 2592none22.111.370364
4.
 
Nikon D7500 APS-C 20.7 5568 37124K/30p24.314.0148386
5.
 
Nikon D7200 APS-C 24.0 6000 40001080/60p24.514.6133387
6.
 
Nikon D750 Full Frame 24.2 6016 40161080/60p24.814.5295693
7.
 
Nikon D7100 APS-C 24.0 6000 40001080/60p24.213.7125683
8.
 
Nikon D7000 APS-C 16.1 4928 32641080/24p23.513.9116780
9.
 
Nikon D3000 APS-C 10.0 3872 2592none22.311.156362
10.
 
Nikon D5000 APS-C 12.2 4288 2848720/24p22.712.586872
11.
 
Nikon D60 APS-C 10.0 3872 2592none22.511.456265
12.
 
Nikon D40X APS-C 10.0 3872 2592none22.411.451663
13.
 
Nikon D80 APS-C 10.0 3872 2592none22.111.252461
14.
 
Sony A7S II Full Frame 12.0 4240 28324K/30p23.613.3299385
15.
 
Sony A7 Full Frame 24.0 6000 40001080/60p24.814.2224890
16.
 
Sony A7R Full Frame 36.2 7360 49121080/60p25.614.1274695
17.
 
Sony RX1R Full Frame 24.0 6000 40001080/60p25.013.6253791

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, but the A7S provides a better video resolution than the D90. It can shoot movie footage at 1080/60p, while the Nikon is limited to 720/24p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the A7S has an electronic viewfinder (2400k dots), while the D90 has an optical one. Both systems have their advantages, with the electronic viewfinder making it possible to project supplementary shooting information into the framing view, whereas the optical viewfinder offers lag-free viewing and a very clear framing image. The viewfinder in the A7S offers a wider field of view (100%) than the one in the D90 (96%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the A7S has a higher magnification (0.71x vs 0.63x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The table below summarizes some of the other core capabilities of the Nikon D90 and Sony A7S 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 D90optical Y3.0 / 920 fixed n 1/4000s 4.5/s Y n
2.
 
Sony A7S2400 n3.0 / 921 tilting n 1/8000s 5.0/s n n
3.
 
Canon 40Doptical Y3.0 / 230 fixed n 1/8000s 6.5/s Y n
4.
 
Nikon D7500optical Y3.2 / 922 tilting Y 1/8000s 8.0/s Y n
5.
 
Nikon D7200optical Y3.2 / 1229 fixed n 1/8000s 6.0/s Y n
6.
 
Nikon D750optical Y3.2 / 1229 tilting n 1/4000s 6.0/s Y n
7.
 
Nikon D7100optical Y3.2 / 1229 fixed n 1/8000s 6.0/s Y n
8.
 
Nikon D7000optical Y3.0 / 921 fixed n 1/8000s 6.0/s Y n
9.
 
Nikon D3000optical n3.0 / 230 fixed n 1/4000s 3.0/s Y n
10.
 
Nikon D5000optical n2.7 / 230 full-flex n 1/4000s 4.0/s Y n
11.
 
Nikon D60optical n2.5 / 230 fixed n 1/4000s 3.0/s Y n
12.
 
Nikon D40Xoptical n2.5 / 230 fixed n 1/4000s 3.0/s Y n
13.
 
Nikon D80optical n2.5 / 230 fixed n 1/4000s 3.0/s Y n
14.
 
Sony A7S II2400 n3.0 / 1229 tilting n 1/8000s 5.0/s n Y
15.
 
Sony A72400 n3.0 / 1230 tilting n 1/8000s 5.0/s n n
16.
 
Sony A7R2400 n3.0 / 1230 tilting n 1/8000s 4.0/s n n
17.
 
Sony RX1Roptional n3.0 / 1229 fixed n 1/4000s 5.0/s Y n
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 D90 has one, while the A7S does not. While the built-in flash of the D90 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 A7S 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 D90 writes its imaging data to SDHC cards, while the A7S uses SDXC or Memory Stick PRO Duo cards. The A7S supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the D90 cannot take advantage of Ultra High Speed SD cards.

Connectivity comparison

For some imaging applications, the extent to which a camera can communicate with its environment can be an important aspect in the camera decision process. The table below provides an overview of the connectivity of the Nikon D90 and Sony Alpha A7S 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 D90Ymono / mono--mini2.0---
2.
 
Sony A7SYstereo / monoYYmicro2.0YY-
3.
 
Canon 40DY- / ----2.0---
4.
 
Nikon D7500Ystereo / monoYYmini2.0Y-Y
5.
 
Nikon D7200Ystereo / monoYYmini2.0YY-
6.
 
Nikon D750Ystereo / monoYYmini2.0Y--
7.
 
Nikon D7100Ystereo / monoYYmini2.0---
8.
 
Nikon D7000Ymono / monoY-mini2.0---
9.
 
Nikon D3000Y- / ----2.0---
10.
 
Nikon D5000Ymono / mono--mini2.0---
11.
 
Nikon D60Y- / ----2.0---
12.
 
Nikon D40XY- / ----2.0---
13.
 
Nikon D80Y- / ----2.0---
14.
 
Sony A7S IIYstereo / monoYYmicro2.0YY-
15.
 
Sony A7Ystereo / monoYYmicro2.0YY-
16.
 
Sony A7RYstereo / monoYYmicro2.0YY-
17.
 
Sony RX1RYstereo / monoY-mini2.0---

It is notable that the A7S offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the D90 does not provide wifi capability.

Both the D90 and the A7S have been discontinued, but can regularly be found used on ebay. The D90 was replaced by the Nikon D7000, while the A7S was followed by the Sony A7S II. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Nikon and Sony websites.

Review summary

So what is the bottom line? Which of the two cameras – the Nikon D90 or the Sony A7S – has the upper hand? Is one clearly better than the other? A synthesis of the relative strong points of each of the models is listed below.

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Advantages of the Nikon D90:

  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • Easier setting verification: Features an LCD display on top to control shooting parameters.
  • Longer lasting: Can take more shots (850 versus 380) 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 (48 percent cheaper at launch).
  • More heavily discounted: Has been available for much longer (launched in August 2008).

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Reasons to prefer the Sony Alpha A7S:

  • Better image quality: Scores substantially higher (14 points) in the DXO overall evaluation.
  • Richer colors: Generates noticeably more natural colors (1.2 bits more color depth).
  • More dynamic range: Captures a broader range of light and dark details (0.7 EV of extra DR).
  • Better low-light sensitivity: Can shoot in dim conditions (1.9 stops ISO advantage).
  • Better video: Provides higher definition movie capture (1080/60p vs 720/24p).
  • 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.
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • More complete view: Has a viewfinder with a larger field of view (100% vs 96%).
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.71x vs 0.63x).
  • More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
  • 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.
  • More compact: Is smaller (127x94mm vs 132x103mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 214g or 30 percent) and is thus easier to take along.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
  • More legacy lens friendly: Can use many non-native lenses via adapters.
  • Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
  • Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
  • Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
  • More modern: Reflects 5 years and 7 months of technical progress since the D90 launch.

If the number of relative strengths (bullet points above) is taken as a guide, the A7S is the clear winner of the contest (22 : 6 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.

D90 06:22 A7S

How about other alternatives? Do the specifications of the Nikon D90 and the Sony A7S 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 says little about, for example, the shooting experience and imaging performance of the D90 and the A7S in practical situations. 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 D90..+ +..+ +4/54.5/5 Aug 2008 1,299ebay.com
2.
 
Sony A7S4/5....86/1004.5/55/5 Apr 2014 2,499ebay.com
3.
 
Canon 40D..+ +..+ +4.5/54.5/5 Aug 2007 1,299ebay.com
4.
 
Nikon D75004.5/5+ +4.5/586/1005/54.5/5 Apr 2017 1,299 amazon.com
5.
 
Nikon D72004/5+ +..84/1004.5/54.5/5 Mar 2015 1,199ebay.com
6.
 
Nikon D7505/5+ +4/590/1004.5/54.5/5 Sep 2014 2,299ebay.com
7.
 
Nikon D71005/5+ +..85/1004.5/54.5/5 Feb 2013 1,199ebay.com
8.
 
Nikon D70004/5....80/1004.5/54.5/5 Sep 2010 1,499ebay.com
9.
 
Nikon D3000..+..72/1004/54.5/5 Jul 2009 599ebay.com
10.
 
Nikon D5000..+ +..75/1004/54.5/5 Apr 2009 749ebay.com
11.
 
Nikon D60..80/100..+ +4/54.5/5 Jan 2008 629ebay.com
12.
 
Nikon D40X..79/100..+ +4/54/5 Mar 2007 729ebay.com
13.
 
Nikon D80..+..+ +o4.5/5 Aug 2006 999ebay.com
14.
 
Sony A7S II5/5+....4.5/55/5 Sep 2015 2,999ebay.com
15.
 
Sony A75/5+ +..80/1005/55/5 Oct 2013 1,699ebay.com
16.
 
Sony A7R5/5+ +..82/1004.5/55/5 Oct 2013 2,299ebay.com
17.
 
Sony RX1R5/5......4/54.5/5 Jun 2013 2,799ebay.com
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

Care should be taken when interpreting the review scores above, though. The ratings are only valid when referring to cameras in the same category and of the same age. 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. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

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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 use the search menu below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Nikon D90 vs Sony A7S

    Below is a side-by-side comparison of the specs of the two cameras to facilitate a quick review of their differences and common features.

    Camera Specifications
    Camera Model Nikon D90 Sony A7S
    Camera Type Digital single lens reflex Mirrorless system camera
    Camera Lens Nikon F mount lenses Sony E mount lenses
    Launch Date August 2008 April 2014
    Launch Price USD 1,299 USD 2,499
    Sensor Specs Nikon D90 Sony A7S
    Sensor Technology CMOS CMOS
    Sensor Format APS-C Sensor Full Frame Sensor
    Sensor Size 23.6 x 15.8 mm 35.8 x 23.9 mm
    Sensor Area 372.88 mm2 855.62 mm2
    Sensor Diagonal 28.4 mm 43 mm
    Crop Factor 1.5x 1.0x
    Sensor Resolution 12.2 Megapixels 12 Megapixels
    Image Resolution 4288 x 2848 pixels 4240 x 2832 pixels
    Pixel Pitch 5.53 μm 8.45 μm
    Pixel Density 3.28 MP/cm2 1.40 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability 720/24p Video 1080/60p Video
    ISO Setting 200 - 3,200 ISO 100 - 102,400 ISO
    ISO Boost 200 - 6,400 ISO 50 - 409,600 ISO
    Image Processor EXPEED BIONZ X
    DXO Sensor Quality (score) 73 87
    DXO Color Depth (bits) 22.7 23.9
    DXO Dynamic Range (EV) 12.5 13.2
    DXO Low Light (ISO) 977 3702
    Screen Specs Nikon D90 Sony A7S
    Viewfinder Type Optical viewfinder Electronic viewfinder
    Viewfinder Field of View 96% 100%
    Viewfinder Magnification 0.63x 0.71x
    Viewfinder Resolution 2400k dots
    Top-Level Screen Control Panel no Top Display
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 920k dots 921k dots
    LCD Attachment Fixed screen Tilting screen
    Shooting Specs Nikon D90 Sony A7S
    Focus System Phase-detect AF Contrast-detect AF
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/4000s 1/8000s
    Continuous Shooting 4.5 shutter flaps/s 5 shutter flaps/s
    Electronic Shutterno E-ShutterYES
    Fill Flash Built-in Flash no On-Board Flash
    Storage Medium SDHC cards MS or SDXC cards
    Second Storage Option Single card slot Single card slot
    UHS card support no UHS-I
    Connectivity Specs Nikon D90 Sony A7S
    External Flash Hotshoe Hotshoe
    USB Connector USB 2.0 USB 2.0
    HDMI Port mini HDMI micro HDMI
    Microphone Port no MIC socket External MIC port
    Headphone Socket no Headphone port Headphone port
    Wifi Support no Wifi Wifi built-in
    Near-Field Communication no NFC NFC built-in
    Body Specs Nikon D90 Sony A7S
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type EN-EL3e NP-FW50
    Battery Life (CIPA)850 shots per charge380 shots per charge
    In-Camera Charging no USB charging USB charging
    Body Dimensions 132 x 103 x 77 mm
    (5.2 x 4.1 x 3.0 in)
    127 x 94 x 48 mm
    (5.0 x 3.7 x 1.9 in)
    Camera Weight 703 g (24.8 oz) 489 g (17.2 oz)
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