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Nikon D850 vs Sony A7S

The Nikon D850 and the Sony Alpha A7S are two professional cameras that were announced, respectively, in July 2017 and April 2014. The D850 is a DSLR, while the A7S is a mirrorless interchangeable lens camera. Both cameras are equipped with a full frame sensor. The Nikon has a resolution of 45.4 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 D850 VS Sony A7S
Nikon D850 Sony A7S
Digital single lens reflex Mirrorless system camera
Nikon F mount lenses Sony E mount lenses
45.4 MP, Full Frame Sensor 12 MP, Full Frame Sensor
4K/30p Video 1080/60p Video
ISO 64-25600 (32-102400) ISO 100-102400 (50-409600)
Optical viewfinder Electronic viewfinder (2400k dots)
3.2" LCD, 2359k dots 3.0" LCD, 921k dots
Tilting touchscreen Tilting screen (not touch-sensitive)
9 shutter flaps per second 5 shutter flaps per second
Weathersealed bodyWeathersealed body
1840 shots per battery charge380 shots per battery charge
146 x 124 x 79 mm, 1005 g 127 x 94 x 48 mm, 489 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon D850 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

An illustration of the physical size and weight of the Nikon D850 and the Sony A7S is provided 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 dimensions are rounded to the nearest millimeter.

Size Nikon D850 vs Sony A7S
Compare D850 versus A7S top
Comparison D850 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 considerably smaller (34 percent) than the Nikon D850. Moreover, the A7S is substantially lighter (51 percent) than the D850. In this context, it is worth noting that both cameras are splash and dust-proof and can, hence, be used in inclement weather conditions or harsh environments.

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. Both cameras have similarly sized sensors, but DSLRs have a larger flange-to-focal plane distance than mirrorless cameras, which imposes contraints on the optical engineering process and generally leads to bigger and heavier lenses. You can compare the optics available for the two cameras in the Nikon Lens Catalog (D850) 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 D850 gets 1840 shots out of its EN-EL15a 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, just use the right or left arrows in the table to switch to the respective camera. Alternatively, you can also navigate to the CAM-parator app and make your selection from the full list of cameras there.

Camera Body Specifications
  Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
(CIPA)
Weather
Sealing
(yes/no)
Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Camera
Model
 
Nikon D850» 5.7 in 4.9 in 3.1 in 35.5 oz 1840 Y Jul 2017 3,299 iNikon D850
 
Sony A7S« 5.0 in 3.7 in 1.9 in 17.2 oz 380 Y Apr 2014 2,499iSony A7S
 
Canon 5DS« » 6.0 in 4.6 in 3.0 in 32.8 oz 700 Y Feb 2015 3,699 iCanon 5DS
 
Canon 5DS R« » 6.0 in 4.6 in 3.0 in 32.8 oz 700 Y Feb 2015 3,699 iCanon 5DS R
 
Nikon D5« » 6.3 in 6.3 in 3.6 in 49.9 oz 3780 Y Jan 2016 6,499iNikon D5
 
Nikon D810« » 5.7 in 4.8 in 3.2 in 34.6 oz 1200 Y Jun 2014 3,299iNikon D810
 
Nikon Df« » 5.7 in 4.3 in 2.6 in 26.8 oz 1400 Y Nov 2013 2,749 iNikon Df
 
Nikon D610« » 5.6 in 4.4 in 3.2 in 30.0 oz 900 Y Oct 2013 1,999 iNikon D610
 
Nikon D600« » 5.6 in 4.4 in 3.2 in 30.0 oz 900 Y Sep 2012 2,099iNikon D600
 
Nikon D800« » 5.7 in 4.8 in 3.2 in 35.3 oz 900 Y Feb 2012 2,999iNikon D800
 
Nikon D800E« » 5.7 in 4.8 in 3.2 in 35.3 oz 900 Y Feb 2012 3,299iNikon D800E
 
Sony A99 II« » 5.6 in 4.1 in 3.0 in 29.9 oz 490 Y Sep 2016 3,199 iSony A99 II
 
Sony A7S II« » 5.0 in 3.8 in 2.4 in 22.1 oz 370 Y Sep 2015 2,999 iSony A7S II
 
Sony A7 II« » 5.0 in 3.8 in 2.4 in 21.1 oz 350 Y Nov 2014 1,999iSony A7 II
 
Sony A7« » 5.0 in 3.7 in 1.9 in 16.7 oz 340 Y Oct 2013 1,699iSony A7
 
Sony A7R« » 5.0 in 3.7 in 1.9 in 16.4 oz 340 Y Oct 2013 2,299iSony A7R
Note: Measurements and pricing do not include easily detachable parts, such as interchangeable lenses or optional viewfinders.

The price is, of course, an important factor in any camera decision. 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 A7S was launched at a somewhat lower price (by 24 percent) than the D850, which makes it more attractive for photographers on a tight budget. 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 imaging sensor is at the core of digital cameras and its size is one of the main determining factors 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 associated with larger, more expensive camera bodies and lenses.

Both cameras under consideration feature a full frame sensor, but their sensors differ slightly in size. They nevertheless have the same format factor of 1.0. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Nikon D850 and Sony A7S sensor measures

With 45.4MP, the D850 offers a higher resolution than the A7S (12MP), but the D850 has smaller individual pixels (pixel pitch of 4.35μm versus 8.45μm for the A7S). However, the D850 is a much more recent model (by 3 years and 3 months) than the A7S, and its sensor will 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 D850 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Nikon D850 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the D850 for good quality output (200 dots per inch) amounts to 41.3 x 27.5 inch or 104.9 x 69.9 cm, for very good quality (250 dpi) 33 x 22 inch or 83.9 x 55.9 cm, and for excellent quality (300 dpi) 27.5 x 18.3 inch or 69.9 x 46.6 cm. The corresponding values for the Sony A7S are 21.2 x 14.2 inch or 53.8 x 36 cm for good quality, 17 x 11.3 inch or 43.1 x 28.8 cm for very good quality, and 14.1 x 9.4 inch or 35.9 x 24 cm for excellent quality prints.

The Nikon D850 has a native sensitivity range from ISO 64 to ISO 25600, which can be extended to ISO 32-102400. 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.

D850 versus A7S MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. This service assesses and scores the color depth ("DXO Portrait"), dynamic range ("DXO Landscape"), and low-light sensitivity ("DXO Sports") of camera sensors, and also publishes an overall camera score. Of the two cameras under review, the D850 provides substantially higher image quality than the A7S, with an overall score that is 13 points higher. This advantage is based on 2.5 bits higher color depth, 1.6 EV in additional dynamic range, and 0.5 stops of reduced 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.

Sensor Characteristics
  Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Camera
Model
 
Nikon D850 Full Frame 45.4 8256 55044K/30p26.414.82660100Nikon D850
 
Sony A7S Full Frame 12.0 4240 28321080/60p23.913.2370287Sony A7S
 
Canon 5DS Full Frame 50.3 8688 57921080/30p24.712.4238187Canon 5DS
 
Canon 5DS R Full Frame 50.3 8688 57921080/30p24.612.4230886Canon 5DS R
 
Nikon D5 Full Frame 20.7 5588 37124K/30p25.112.3234388Nikon D5
 
Nikon D810 Full Frame 36.2 7360 49121080/60p25.714.8285397Nikon D810
 
Nikon Df Full Frame 16.2 4928 3280none24.613.1327989Nikon Df
 
Nikon D610 Full Frame 24.2 6016 40161080/30p25.114.4292594Nikon D610
 
Nikon D600 Full Frame 24.2 6016 40161080/30p25.114.2298094Nikon D600
 
Nikon D800 Full Frame 36.2 7360 49121080/30p25.314.4285395Nikon D800
 
Nikon D800E Full Frame 36.2 7360 49121080/30p25.614.3297996Nikon D800E
 
Sony A99 II Full Frame 42.2 7952 53044K/30p25.413.4231792Sony A99 II
 
Sony A7S II Full Frame 12.0 4240 28324K/30p23.613.3299385Sony A7S II
 
Sony A7 II Full Frame 24.0 6000 40001080/60p24.913.6244990Sony A7 II
 
Sony A7 Full Frame 24.0 6000 40001080/60p24.814.2224890Sony A7
 
Sony A7R Full Frame 36.2 7360 49121080/60p25.614.1274695Sony A7R

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, but the D850 provides a higher video resolution than the A7S. It can shoot video footage at 4K/30p, while the Sony is limited to 1080/60p.

 

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 D850 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 D850 has a higher magnification than the one of the A7S (0.75x vs 0.71x), 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 D850 and Sony A7S along with similar information for a selection of comparators.

Core Features
  Camera
Model
Viewfinder
(Type or
'000 dots)
Control
Panel
(yes/no)
LCD
Size
(inch)
LCD
Resolution
('000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Mech
Shutter
Speed
Shutter
Flaps
(1/sec)
Built-in
Flash
(yes/no)
Built-in
Image
Stab
Camera
Model
 
Nikon D850optical Y 3.2 2359 tilting Y 1/8000s 9.0 n n Nikon D850
 
Sony A7S2400 n 3.0 921 tilting n 1/8000s 5.0 n n Sony A7S
 
Canon 5DSoptical Y 3.2 1040 fixed n 1/8000s 5.0 n n Canon 5DS
 
Canon 5DS Roptical Y 3.2 1040 fixed n 1/8000s 5.0 n n Canon 5DS R
 
Nikon D5optical Y 3.2 2359 fixed Y 1/8000s 14.0 n n Nikon D5
 
Nikon D810optical Y 3.2 1229 fixed n 1/8000s 5.0 Y n Nikon D810
 
Nikon Dfoptical Y 3.2 921 fixed n 1/4000s 5.5 n n Nikon Df
 
Nikon D610optical Y 3.2 921 fixed n 1/4000s 6.0 Y n Nikon D610
 
Nikon D600optical Y 3.0 921 fixed n 1/4000s 5.5 Y n Nikon D600
 
Nikon D800optical Y 3.2 921 fixed n 1/8000s 4.0 Y n Nikon D800
 
Nikon D800Eoptical Y 3.2 921 fixed n 1/8000s 4.0 Y n Nikon D800E
 
Sony A99 II2400 Y 3.0 1229 full-flex n 1/8000s 12.0 n Y Sony A99 II
 
Sony A7S II2400 n 3.0 1229 tilting n 1/8000s 5.0 n Y Sony A7S II
 
Sony A7 II2400 n 3.0 1230 tilting n 1/8000s 5.0 n Y Sony A7 II
 
Sony A72400 n 3.0 1230 tilting n 1/8000s 5.0 n n Sony A7
 
Sony A7R2400 n 3.0 1230 tilting n 1/8000s 4.0 n n Sony A7R

One feature that is present on the D850, but is missing on the A7S 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 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 Nikon D850 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 D850 writes its imaging data to SDHC or XQD cards, while the A7S uses SDXC or Memory Stick PRO Duo cards. The D850 features dual card slots, which can be very useful in case a memory card fails. In contrast, the A7S only has one slot. The D850 supports UHS-II cards (Ultra High Speed data transfer of up to 312 MB/s), while the A7S can use UHS-I cards (up to 104 MB/s).

 

Connectivity comparison

For some imaging applications, the extent to which a camera can communicate with its environment can be an important aspect in the camera decision process. The table below provides an overview of the connectivity of the Nikon D850 and Sony Alpha A7S and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

Input-Output Connections
  Camera
Model
Hotshoe
Port
Internal
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
Camera
Model
 
Nikon D850YstereomonoYYmini3.0YYYNikon D850
 
Sony A7SYstereomonoYYmicro2.0YY-Sony A7S
 
Canon 5DSYmonomonoY-mini3.0---Canon 5DS
 
Canon 5DS RYmonomonoY-mini3.0---Canon 5DS R
 
Nikon D5YstereomonoYYmini3.0---Nikon D5
 
Nikon D810YstereomonoYYmini3.0Y--Nikon D810
 
Nikon DfYnonenone--mini2.0---Nikon Df
 
Nikon D610YmonomonoYYmini2.0---Nikon D610
 
Nikon D600YmonomonoYYmini2.0---Nikon D600
 
Nikon D800YmonomonoYYmini3.0---Nikon D800
 
Nikon D800EYmonomonoYYmini3.0---Nikon D800E
 
Sony A99 IIYstereomonoYYmicro2.0YYYSony A99 II
 
Sony A7S IIYstereomonoYYmicro2.0YY-Sony A7S II
 
Sony A7 IIYstereomonoYYmicro2.0YY-Sony A7 II
 
Sony A7YstereomonoYYmicro2.0YY-Sony A7
 
Sony A7RYstereomonoYYmicro2.0YY-Sony A7R

Studio photographers will appreciate that the Nikon D850 (unlike the A7S) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

The D850 is a recent model that features in the current product line-up of Nikon. In contrast, the A7S has been discontinued (but it can be found pre-owned on eBay). As a replacement in the same line of cameras, the A7S was succeeded 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 conclusions can be drawn? Is there a clear favorite between the Nikon D850 and the Sony A7S? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.

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Arguments in favor of the Nikon D850:

  • More detail: Offers more megapixels (45.4 vs 12MP) with a 95% higher linear resolution.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Better image quality: Scores substantially higher (13 points) in the DXO overall assessment.
  • Richer colors: Generates images with noticeably better colors (2.5 bits more color depth).
  • More dynamic range: Captures a larger spectrum of light and dark details (1.6 EV of extra DR).
  • Better video: Provides higher definition movie capture (4K/30p vs 1080/60p).
  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.75x vs 0.71x).
  • Easier setting verification: Features an LCD display on top to control shooting parameters.
  • Larger screen: Has a bigger rear LCD (3.2" vs 3.0") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (2359k vs 921k dots).
  • Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
  • Faster burst: Shoots at higher frequency (9 vs 5 flaps/sec) to capture the decisive moment.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • Longer lasting: Can take more shots (1840 versus 380) on a single battery charge.
  • Faster data transfer: Supports a more advanced USB protocol (3.0 vs 2.0).
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
  • 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 3 years and 3 months of technical progress since the A7S launch.

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Advantages of the Sony Alpha A7S:

  • 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 (0.5 stops ISO advantage).
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • More compact: Is smaller (127x94mm vs 146x124mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 516g or 51 percent) and is thus easier to take along.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • More legacy lens friendly: Can use many non-native lenses via adapters.
  • More affordable: Was released into a lower priced segment (24 percent cheaper at launch).
  • More heavily discounted: Has been around for much longer (launched in April 2014).

If the count of individual advantages (bullet points above) is taken as a guide, the D850 is the clear winner of the match-up (21 : 9 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 sports photographer will view the differences between cameras in a way that diverges from the perspective of a street photog, and a person interested in family portraits has distinct needs from a landscape shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

D850 21:09 A7S

How about other alternatives? Do the specifications of the Nikon D850 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 technical specifications can provide a useful overview of the capabilities of different cameras, it says little about, for example, the shooting experience and imaging performance of the D850 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 (cameralabs, dpreview, ephotozine, imaging-resource, and photographyblog). 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.

Review Scores
  Camera
Model
cam
era
  labs  
dp
re
  view  
e
photo
  zine  
ima
ging
resource
photo
graphy
  blog  
Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Camera
Model
 
Nikon D850+ +89/1004.5/55/55/5 Jul 2017 3,299 iNikon D850
 
Sony A7S..86/1004.5/54.5/55/5 Apr 2014 2,499iSony A7S
 
Canon 5DS+83/1004.5/55/54.5/5 Feb 2015 3,699 iCanon 5DS
 
Canon 5DS R+83/1005/55/54.5/5 Feb 2015 3,699 iCanon 5DS R
 
Nikon D5..89/1004.5/55/55/5 Jan 2016 6,499iNikon D5
 
Nikon D810..86/1005/54.5/54.5/5 Jun 2014 3,299iNikon D810
 
Nikon Df..81/1004/54/54/5 Nov 2013 2,749 iNikon Df
 
Nikon D610+ +87/1004.5/54.5/54.5/5 Oct 2013 1,999 iNikon D610
 
Nikon D600+ +87/1005/54.5/54.5/5 Sep 2012 2,099iNikon D600
 
Nikon D800+ +82/1005/55/55/5 Feb 2012 2,999iNikon D800
 
Nikon D800E..84/1005/54.5/55/5 Feb 2012 3,299iNikon D800E
 
Sony A99 II..85/1004.5/54.5/54.5/5 Sep 2016 3,199 iSony A99 II
 
Sony A7S II+..4.5/55/55/5 Sep 2015 2,999 iSony A7S II
 
Sony A7 II+82/1004.5/55/55/5 Nov 2014 1,999iSony A7 II
 
Sony A7+ +80/1005/54.5/55/5 Oct 2013 1,699iSony A7
 
Sony A7R+ +82/1004.5/55/55/5 Oct 2013 2,299iSony A7R
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The review scores listed above should be treated 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 comparisons of ratings among very different cameras or across long time periods have little meaning. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

Nikon D850:
Check Amazon price
Sony A7S:
Check Ebay offers

Other camera comparisons

Did this review help to inform your camera decision process? If you would like to see a different side-by-side camera review, just 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: Nikon D850 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 D850 Sony A7S
    Camera Type Digital single lens reflex Mirrorless system camera
    Camera Lens Nikon F mount lenses Sony E mount lenses
    Launch Date July 2017 April 2014
    Launch Price USD 3299 USD 2499
    Sensor Specs Nikon D850 Sony A7S
    Sensor Technology BSI-CMOS CMOS
    Sensor Format Full Frame Sensor Full Frame Sensor
    Sensor Size 35.9 x 23.9 mm 35.8 x 23.9 mm
    Sensor Area 858.01 mm2 855.62 mm2
    Sensor Diagonal 43.1 mm 43 mm
    Crop Factor 1.0x 1.0x
    Sensor Resolution 45.4 Megapixels 12 Megapixels
    Image Resolution 8256 x 5504 pixels 4240 x 2832 pixels
    Pixel Pitch 4.35 μm 8.45 μm
    Pixel Density 5.30 MP/cm2 1.40 MP/cm2
    Moiré control no AA filter Anti-Alias filter
    Movie Capability 4K/30p Video 1080/60p Video
    ISO Setting 64-25600 ISO 100-102400 ISO
    ISO Boost 32-102400 ISO 50-409600 ISO
    Image Processor EXPEED 5 BIONZ X
    DXO Sensor Quality (score) 100 87
    DXO Color Depth (bits) 26.4 23.9
    DXO Dynamic Range (EV) 14.8 13.2
    DXO Low Light (ISO) 2660 3702
    Screen Specs Nikon D850 Sony A7S
    Viewfinder Type Optical viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.75x 0.71x
    Viewfinder Resolution 2400k dots
    Top-Level Screen Control Panel no Top Display
    LCD Framing Live View Live View
    Rear LCD Size 3.2 inch 3.0 inch
    LCD Resolution 2359k dots 921k dots
    LCD Attachment Tilting screen Tilting screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Nikon D850 Sony A7S
    Focus System Phase-detect AF Contrast-detect AF
    Manual Focusing AidNo Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/8000/s 1/8000/s
    Continuous Shooting 9 shutter flaps/s 5 shutter flaps/s
    Electronic Shutterno E-ShutterYES
    Time-Lapse PhotographyIntervalometer built-inno Intervalometer
    Fill Flash no On-Board Flash no On-Board Flash
    Storage Medium SDXC or XQD cards MS or SDXC cards
    Second Storage Option Dual card slots Single card slot
    UHS card support UHS-II UHS-I
    Connectivity Specs Nikon D850 Sony A7S
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket no PC Sync
    USB Connector USB 3.0 USB 2.0
    HDMI Port mini HDMI micro HDMI
    Microphone Port External MIC port External MIC port
    Headphone Socket Headphone port Headphone port
    Wifi Support Wifi built-in Wifi built-in
    Near-Field Communication NFC built-in NFC built-in
    Bluetooth Support Bluetooth built-in no Bluetooth
    Body Specs Nikon D850 Sony A7S
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type EN-EL15a NP-FW50
    Battery Life (CIPA)1840 shots per charge380 shots per charge
    In-Camera Charging no USB charging USB charging
    Body Dimensions 146 x 124 x 79 mm
    (5.7 x 4.9 x 3.1 in)
    127 x 94 x 48 mm
    (5.0 x 3.7 x 1.9 in)
    Camera Weight 1005 g (35.5 oz) 489 g (17.2 oz)

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