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Nikon D4S vs Sony A6100

The Nikon D4S and the Sony Alpha A6100 are two digital cameras that were officially introduced, respectively, in February 2014 and August 2019. The D4S is a DSLR, while the A6100 is a mirrorless interchangeable lens camera. The cameras are based on a full frame (D4S) and an APS-C (A6100) sensor. The Nikon has a resolution of 16.2 megapixels, whereas the Sony provides 24 MP.

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

Headline Specifications
Nikon D4S VS Sony A6100
Nikon D4S Sony A6100
Digital single lens reflex Mirrorless system camera
Nikon F mount lenses Sony E mount lenses
16.2 MP, Full Frame Sensor 24 MP, APS-C Sensor
1080/60p Video 4K/30p Video
ISO 100-25600 (50-409600) ISO 100-32000 (100-51200)
Optical viewfinder Electronic viewfinder (1440k dots)
3.2" LCD, 921k dots 3.0" LCD, 922k dots
Fixed screen (not touch-sensitive) Tilting touchscreen
11 shutter flaps per second 11 shutter flaps per second
Weathersealed bodyNot weather sealed
3020 shots per battery charge420 shots per battery charge
160 x 157 x 91 mm, 1350 g 120 x 67 x 59 mm, 396 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon D4S and the Sony Alpha A6100? 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 D4S and the Sony A6100 is provided 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 measures are rounded to the nearest millimeter.

The A6100 can be obtained in three different colors (black, silver, white), while the D4S is only available in black.

Size Nikon D4S vs Sony A6100
Compare D4S versus A6100 top
Comparison D4S or A6100 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A6100 is considerably smaller (68 percent) than the Nikon D4S. Moreover, the A6100 is substantially lighter (71 percent) than the D4S. It is worth mentioning in this context that the D4S is splash and dust resistant, while the A6100 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 (D4S) and the Sony E-Mount Lens Catalog (A6100). Mirrorless cameras, such as the A6100, 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 D4S gets 3020 shots out of its EN-EL18a battery, while the A6100 can take 420 images on a single charge of its NP-FW50 power pack. As can be seen in the images above, the D4S has a battery grip built in. This facilitates image-taking in portrait orientation and gives it additional battery power. The power pack in the A6100 can be charged via the USB port, which can be very convenient when travelling.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. If you want to switch the focus of the display and review another camera pair, just select a new right or left comparator from among the camera models in the table. Alternatively, you can also move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons 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 D4S» 6.3 in 6.2 in 3.6 in 47.6 oz 3020 Y Feb 2014 6,499iNikon D4S
 
Sony A6100« 4.7 in 2.6 in 2.3 in 14.0 oz 420 n Aug 2019 749 iSony A6100
 
Canon 1D X« » 6.2 in 6.6 in 3.3 in 54.7 oz 1120 Y Oct 2011 6,799iCanon 1D X
 
Fujifilm X-T30« » 4.6 in 3.3 in 1.9 in 13.5 oz 380 n Feb 2019 899 iFujifilm X-T30
 
Nikon D6« » 6.3 in 6.4 in 3.6 in 44.8 oz 3580 Y Feb 2020 6,499 iNikon D6
 
Nikon D5« » 6.3 in 6.3 in 3.6 in 49.9 oz 3780 Y Jan 2016 6,499iNikon D5
 
Nikon D750« » 5.6 in 4.4 in 3.1 in 26.5 oz 1230 Y Sep 2014 2,299iNikon D750
 
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 D4« » 6.3 in 6.2 in 3.6 in 47.3 oz 2600 Y Jan 2012 5,999iNikon D4
 
Nikon D3S« » 6.3 in 6.2 in 3.5 in 43.7 oz 4200 Y Oct 2009 5,199iNikon D3S
 
Nikon D3X« » 6.3 in 6.2 in 3.5 in 44.4 oz 4400 Y Dec 2008 7,999iNikon D3X
 
Nikon D3« » 6.3 in 6.2 in 3.5 in 45.9 oz 4300 Y Aug 2007 4,999iNikon D3
 
Sony A6400« » 4.7 in 2.6 in 2.0 in 14.2 oz 410 n Jan 2019 899 iSony A6400
 
Sony A6000« » 4.7 in 2.6 in 1.8 in 12.1 oz 360 n Feb 2014 599iSony A6000
 
Sony A3000« » 5.0 in 3.6 in 3.3 in 14.5 oz 470 n Aug 2013 329iSony A3000
 
Sony NEX-7« » 4.7 in 2.6 in 1.7 in 14.1 oz 430 n Aug 2011 1,349iSony NEX-7
Note: Measurements and pricing do not include easily detachable parts, such as 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 A6100 was launched at a markedly lower price (by 88 percent) than the D4S, 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 imaging sensor is a crucial determinant of image quality. A large sensor will generally have larger individual pixels that offer better low-light sensitivity, provide wider dynamic range, and have richer color-depth than smaller pixels in a sensor of the same technological generation. Furthermore, a large sensor camera will give the photographer more possibilities to use shallow depth-of-field in order to 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 D4S features a full frame sensor and the Sony A6100 an APS-C sensor. The sensor area in the A6100 is 57 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.0 and 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

In terms of underlying technology, both cameras are build around CMOS sensors.

Nikon D4S and Sony A6100 sensor measures

Despite having a smaller sensor, the A6100 offers a higher resolution of 24 megapixels, compared with 16.2 MP of the D4S. 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 7.29μm for the D4S). However, it should be noted that the A6100 is much more recent (by 5 years and 6 months) than the D4S, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently.

The resolution advantage of the Sony A6100 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A6100 for good quality output (200 dots per inch) amounts to 30 x 20 inch or 76.2 x 50.8 cm, for very good quality (250 dpi) 24 x 16 inch or 61 x 40.6 cm, and for excellent quality (300 dpi) 20 x 13.3 inch or 50.8 x 33.9 cm. The corresponding values for the Nikon D4S are 24.6 x 16.4 inch or 62.6 x 41.7 cm for good quality, 19.7 x 13.1 inch or 50.1 x 33.3 cm for very good quality, and 16.4 x 10.9 inch or 41.7 x 27.8 cm for excellent quality prints.

The A6100 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Nikon D4S has a native sensitivity range from ISO 100 to ISO 25600, which can be extended to ISO 50-409600. The corresponding ISO settings for the Sony Alpha A6100 are ISO 100 to ISO 32000, with the possibility to increase the ISO range to 100-51200.

D4S versus A6100 MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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 table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.

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 D4S Full Frame 16.2 4928 32801080/60p24.413.3307489Nikon D4S
 
Sony A6100 APS-C 24.0 6000 40004K/30p........Sony A6100
 
Canon 1D X Full Frame 17.9 5184 34561080/30p23.811.8278682Canon 1D X
 
Fujifilm X-T30 APS-C 26.0 6240 41604K/30p........Fujifilm X-T30
 
Nikon D6 Full Frame 20.7 5568 37124K/30p........Nikon D6
 
Nikon D5 Full Frame 20.7 5588 37124K/30p25.112.3234388Nikon D5
 
Nikon D750 Full Frame 24.2 6016 40161080/60p24.814.5295693Nikon D750
 
Nikon D810 Full Frame 36.2 7360 49121080/60p25.714.8285397Nikon D810
 
Nikon Df Full Frame 16.2 4928 3280none24.613.1327989Nikon Df
 
Nikon D4 Full Frame 16.2 4928 32801080/30p24.713.1296589Nikon D4
 
Nikon D3S Full Frame 12.1 4256 2832720/24p23.512.0325382Nikon D3S
 
Nikon D3X Full Frame 24.4 6048 4032none24.713.7199288Nikon D3X
 
Nikon D3 Full Frame 12.1 4256 2832none23.512.2229081Nikon D3
 
Sony A6400 APS-C 24.0 6000 40004K/30p2413.6143183Sony A6400
 
Sony A6000 APS-C 24.0 6000 40001080/60p24.113.1134782Sony A6000
 
Sony A3000 APS-C 19.8 5456 36321080/60i23.712.8106878Sony A3000
 
Sony NEX-7 APS-C 24.0 6000 40001080/60i24.113.4101681Sony NEX-7

Many modern cameras are not only capable of taking still images, but can also record movies. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the A6100 provides a better video resolution than the D4S. It can shoot movie footage at 4K/30p, while the Nikon is limited to 1080/60p.

 

Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. For example, the A6100 has an electronic viewfinder (1440k dots), while the D4S 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%), as well as the same magnification (0.70x). The following table reports on some other key feature differences and similarities of the Nikon D4S, the Sony A6100, and comparable cameras.

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 D4Soptical Y 3.2 921 fixed n 1/8000s 11.0 n n Nikon D4S
 
Sony A61001440 n 3.0 922 tilting Y 1/4000s 11.0 Y n Sony A6100
 
Canon 1D Xoptical Y 3.2 1040 fixed n 1/8000s 14.0 n n Canon 1D X
 
Fujifilm X-T302360 n 3.0 1040 tilting Y 1/4000s 8.0 Y n Fujifilm X-T30
 
Nikon D6optical Y 3.2 2359 fixed Y 1/8000s 14.0 n n Nikon D6
 
Nikon D5optical Y 3.2 2359 fixed Y 1/8000s 14.0 n n Nikon D5
 
Nikon D750optical Y 3.2 1229 tilting n 1/4000s 6.0 Y n Nikon D750
 
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 D4optical Y 3.2 921 fixed n 1/8000s 11.0 n n Nikon D4
 
Nikon D3Soptical Y 3.0 921 fixed n 1/8000s 11.0 n n Nikon D3S
 
Nikon D3Xoptical Y 3.0 922 fixed n 1/8000s 5.0 n n Nikon D3X
 
Nikon D3optical Y 3.0 922 fixed n 1/8000s 11.0 n n Nikon D3
 
Sony A64002359 n 3.0 922 tilting Y 1/4000s 11.0 Y n Sony A6400
 
Sony A60001440 n 3.0 922 tilting n 1/4000s 11.0 Y n Sony A6000
 
Sony A3000202 n 3.0 230 fixed n 1/4000s 2.5 Y n Sony A3000
 
Sony NEX-72359 n 3.0 921 tilting n 1/4000s 10.0 Y n Sony NEX-7

One feature that is present on the D4S, but is missing on the A6100 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 A6100 has an articulated screen that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in taking selfies. In contrast, the D4S 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 A6100 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 D4S and the Sony A6100 both have 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 D4S writes its imaging data to Compact Flash or XQD cards, while the A6100 uses SDXC or Memory Stick PRO Duo cards. The D4S features dual card slots, which can be very useful in case a memory card fails. In contrast, the A6100 only has one slot.

 

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 D4S and Sony Alpha A6100 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 D4SYmonomonoYYmini2.0---Nikon D4S
 
Sony A6100YstereomonoY-micro2.0YYYSony A6100
 
Canon 1D XYmonononeY-mini2.0---Canon 1D X
 
Fujifilm X-T30YstereomonoY-micro3.1Y-YFujifilm X-T30
 
Nikon D6YstereomonoYYmini3.1Y-YNikon D6
 
Nikon D5YstereomonoYYmini3.0---Nikon D5
 
Nikon D750YstereomonoYYmini2.0Y--Nikon D750
 
Nikon D810YstereomonoYYmini3.0Y--Nikon D810
 
Nikon DfYnonenone--mini2.0---Nikon Df
 
Nikon D4YmonomonoYYmicro2.0---Nikon D4
 
Nikon D3SYstereonone--mini2.0---Nikon D3S
 
Nikon D3XYnonenone--mini2.0---Nikon D3X
 
Nikon D3Ynonenone--mini2.0---Nikon D3
 
Sony A6400YstereomonoY-micro2.0YYYSony A6400
 
Sony A6000Ystereomono--micro2.0YY-Sony A6000
 
Sony A3000Ystereomono--mini2.0---Sony A3000
 
Sony NEX-7YstereomonoY-mini2.0---Sony NEX-7

It is notable that the D4S has a headphone jack, which is not present on the A6100 This port makes it possible to attach external headphones and monitor the quality of sound during the recording process.

Studio photographers will appreciate that the Nikon D4S (unlike the A6100) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

The A6100 is a recent model that features in the current product line-up of Sony. In contrast, the D4S has been discontinued (but it can be found pre-owned on eBay). As a replacement in the same line of cameras, the D4S was succeeded by the Nikon D5. 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? Is the Nikon D4S better than the Sony A6100 or vice versa? Below is a summary of the relative strengths of each of the two contestants.

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Reasons to prefer the Nikon D4S:

  • Better sound control: Has a headphone port that enables audio monitoring while recording.
  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • Easier setting verification: Features an LCD display on top to control shooting parameters.
  • Larger screen: Has a bigger rear LCD (3.2" vs 3.0") for image review and settings control.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • More portrait friendly: Features an integrated vertical grip for easier portrait shooting.
  • Longer lasting: Can take more shots (3020 versus 420) on a single battery charge.
  • Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
  • 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.
  • More heavily discounted: Has been available for much longer (launched in February 2014).

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Arguments in favor of the Sony Alpha A6100:

  • More detail: Has more megapixels (24 vs 16.2MP), which boosts linear resolution by 22%.
  • Better video: Provides higher definition movie capture (4K/30p vs 1080/60p).
  • Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
  • Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • More compact: Is smaller (120x67mm vs 160x157mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 954g or 71 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.
  • Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
  • 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.
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • More affordable: Was introduced into a lower priced category (88 percent cheaper at launch).
  • More modern: Reflects 5 years and 6 months of technical progress since the D4S launch.

If the count of relative strengths (bullet points above) is taken as a measure, the A6100 is the clear winner of the contest (17 : 11 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.

D4S 11:17 A6100

How about other alternatives? Do the specifications of the Nikon D4S and the Sony A6100 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 D4S and the A6100 in practical situations. User reviews that are available, for instance, at amazon can sometimes shed light on these issues, but such feedback is all too often partial, inconsistent, and inaccurate.

Expert reviews

This is why expert reviews are important. The adjacent summary-table relays the overall verdicts of several of the most popular camera review sites (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 D4S....4.5/55/54.5/5 Feb 2014 6,499iNikon D4S
 
Sony A6100..82/1004/5..5/5 Aug 2019 749 iSony A6100
 
Canon 1D X....4.5/54.5/54.5/5 Oct 2011 6,799iCanon 1D X
 
Fujifilm X-T30+ +84/1004.5/55/54.5/5 Feb 2019 899 iFujifilm X-T30
 
Nikon D6........4.5/5 Feb 2020 6,499 iNikon D6
 
Nikon D5..89/1004.5/55/55/5 Jan 2016 6,499iNikon D5
 
Nikon D750+ +90/1004.5/55/54.5/5 Sep 2014 2,299iNikon D750
 
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 D4....4.5/5..4.5/5 Jan 2012 5,999iNikon D4
 
Nikon D3S..89/1004.5/55/55/5 Oct 2009 5,199iNikon D3S
 
Nikon D3X..86/1004/55/55/5 Dec 2008 7,999iNikon D3X
 
Nikon D3..+ +5/5o4.5/5 Aug 2007 4,999iNikon D3
 
Sony A6400+85/1004.5/5..4/5 Jan 2019 899 iSony A6400
 
Sony A6000+80/1004.5/55/55/5 Feb 2014 599iSony A6000
 
Sony A3000+..4/54.5/54/5 Aug 2013 329iSony A3000
 
Sony NEX-7+ +81/1004.5/55/55/5 Aug 2011 1,349iSony NEX-7
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The above review scores should be interpreted with care, 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 comparisons of ratings among very different cameras or across long time periods have little meaning. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

Nikon D4S:
Check Ebay offers
Sony A6100:
Check Amazon price

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. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.

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    Specifications: Nikon D4S vs Sony A6100

    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 D4S Sony A6100
    Camera Type Digital single lens reflex Mirrorless system camera
    Camera Lens Nikon F mount lenses Sony E mount lenses
    Launch Date February 2014 August 2019
    Launch Price USD 6499 USD 749
    Sensor Specs Nikon D4S Sony A6100
    Sensor Technology CMOS CMOS
    Sensor Format Full Frame Sensor APS-C Sensor
    Sensor Size 36.0 x 23.9 mm 23.5 x 15.6 mm
    Sensor Area 860.4 mm2 366.6 mm2
    Sensor Diagonal 43.2 mm 28.2 mm
    Crop Factor 1.0x 1.5x
    Sensor Resolution 16.2 Megapixels 24 Megapixels
    Image Resolution 4928 x 3280 pixels 6000 x 4000 pixels
    Pixel Pitch 7.29 μm 3.91 μm
    Pixel Density 1.88 MP/cm2 6.55 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability 1080/60p Video 4K/30p Video
    ISO Setting 100-25600 ISO 100-32000 ISO
    ISO Boost 50-409600 ISO 100-51200 ISO
    Image Processor EXPEED 4 BIONZ X
    DXO Sensor Quality (score) 89 ..
    DXO Color Depth (bits) 24.4 ..
    DXO Dynamic Range (EV) 13.3 ..
    DXO Low Light (ISO) 3074 ..
    Screen Specs Nikon D4S Sony A6100
    Viewfinder Type Optical viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.70x 0.70x
    Viewfinder Resolution 1440k 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 921k dots 922k dots
    LCD Attachment Fixed screen Tilting screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Nikon D4S Sony A6100
    Focus System Phase-detect AF On-Sensor Phase-detect
    Manual Focusing AidNo Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/8000/s 1/4000/s
    Continuous Shooting 11 shutter flaps/s 11 shutter flaps/s
    Shutter Life Expectancy400 000 actuations100 000 actuations
    Electronic Shutterno E-ShutterYES
    Time-Lapse PhotographyIntervalometer built-inIntervalometer built-in
    Fill Flash no On-Board Flash Build-in Flash
    Storage Medium CF or XQD cards MS or SDXC cards
    Second Storage Option Dual card slots Single card slot
    Connectivity Specs Nikon D4S Sony A6100
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket no PC Sync
    USB Connector USB 2.0 USB 2.0
    HDMI Port mini HDMI micro HDMI
    Microphone Port External MIC port External MIC port
    Headphone Socket Headphone port no Headphone port
    Wifi Support no Wifi Wifi built-in
    Near-Field Communication no NFC NFC built-in
    Bluetooth Support no Bluetooth Bluetooth built-in
    Body Specs Nikon D4S Sony A6100
    Environmental SealingWeathersealed bodyNot weather sealed
    Battery Type EN-EL18a NP-FW50
    Battery Life (CIPA)3020 shots per charge420 shots per charge
    In-Camera Charging no USB charging USB charging
    Body Dimensions 160 x 157 x 91 mm
    (6.3 x 6.2 x 3.6 in)
    120 x 67 x 59 mm
    (4.7 x 2.6 x 2.3 in)
    Camera Weight 1350 g (47.6 oz) 396 g (14.0 oz)

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