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Nikon D4 vs Sony A77

The Nikon D4 and the Sony Alpha SLT-A77 are two digital cameras that were officially introduced, respectively, in January 2012 and August 2011. Both are DSLR (Digital Single Lens Reflex) cameras that are based on a full frame (D4) and an APS-C (A77) 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 D4   VS Sony A77
Nikon D4 Sony A77
Digital single lens reflex Digital single lens reflex
Nikon F mount lenses Sony A mount lenses
16.2 MP, Full Frame Sensor 24 MP, APS-C Sensor
1080/30p Video 1080/60p Video
ISO 100-12800 (50-204800) ISO 100-16000 (50-25600)
Optical viewfinder Electronic viewfinder (2359k dots)
3.2" LCD, 921k dots 3.0" LCD, 921k dots
Fixed screen (not touch-sensitive) Fully flexible screen (no touchscreen)
11 shutter flaps per second 12 shutter flaps per second
Lens stabilization onlyIn-body stabilization
Weathersealed bodyWeathersealed body
2600 shots per battery charge470 shots per battery charge
160 x 157 x 91 mm, 1340 g 143 x 104 x 81 mm, 732 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon D4 and the Sony Alpha SLT-A77? 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 physical size and weight of the Nikon D4 and the Sony A77 are illustrated in the side-by-side display below. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All width, height and depth dimensions are rounded to the nearest millimeter.

Size Nikon D4 vs Sony A77
Compare D4 versus A77 top
Comparison D4 or A77 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A77 is considerably smaller (41 percent) than the Nikon D4. Moreover, the A77 is substantially lighter (45 percent) than the D4. 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. Hence, you might want to study and compare the specifications of available lenses in order to get the full picture of the size and weight of the two camera systems.

Concerning battery life, the D4 gets 2600 shots out of its EN-EL18 battery, while the A77 can take 470 images on a single charge of its NP-FM500H power pack. As can be seen in the images above, the D4 has a battery grip built in. This facilitates image-taking in portrait orientation and gives it additional battery power. In order to provide similar functionality for the A77, Sony provides the VG-C77AM vertical grip as an optional accessory (see here on eBay).

The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. 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 D4» 6.3 in 6.2 in 3.6 in 47.3 oz 2600 Y Jan 2012 5,999iNikon D4
 
Sony A77« 5.6 in 4.1 in 3.2 in 25.8 oz 470 Y Aug 2011 1,399iSony A77
 
Canon 1D X« » 6.2 in 6.6 in 3.3 in 54.7 oz 1120 Y Oct 2011 6,799iCanon 1D X
 
Nikon D5« » 6.3 in 6.3 in 3.6 in 49.9 oz 3780 Y Jan 2016 6,499iNikon D5
 
Nikon D4S« » 6.3 in 6.2 in 3.6 in 47.6 oz 3020 Y Feb 2014 6,499iNikon D4S
 
Nikon Df« » 5.7 in 4.3 in 2.6 in 26.8 oz 1400 Y Nov 2013 2,749 iNikon Df
 
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
 
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
 
Pentax K-3« » 5.2 in 3.9 in 3.0 in 28.2 oz 560 Y Oct 2013 1,299iPentax K-3
 
Sony A6500« » 4.7 in 2.6 in 2.1 in 16.0 oz 350 Y Oct 2016 1,399iSony A6500
 
Sony A7 II« » 5.0 in 3.8 in 2.4 in 21.1 oz 350 Y Nov 2014 1,999iSony A7 II
 
Sony A77 II« » 5.6 in 4.1 in 3.2 in 22.8 oz 480 Y May 2014 1,199 iSony A77 II
 
Sony A99« » 5.8 in 4.4 in 3.1 in 28.6 oz 500 Y Sep 2012 2,799iSony A99
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 listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The A77 was launched at a markedly lower price (by 77 percent) than the D4, 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 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. 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 D4 features a full frame sensor and the Sony A77 an APS-C sensor. The sensor area in the A77 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 D4 and Sony A77 sensor measures

Despite having a smaller sensor, the A77 offers a higher resolution of 24 megapixels, compared with 16.2 MP of the D4. 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 D4). Moreover, it should be noted that the D4 is a somewhat more recent model (by 4 months) than the A77, and its sensor might have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixels.

The resolution advantage of the Sony A77 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A77 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 D4 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 Nikon D4 has a native sensitivity range from ISO 100 to ISO 12800, which can be extended to ISO 50-204800. The corresponding ISO settings for the Sony Alpha SLT-A77 are ISO 100 to ISO 16000, with the possibility to increase the ISO range to 50-25600.

D4 versus A77 MP

Consistent information on actual sensor performance is available from DXO Mark for many cameras. This service assesses and scores the color depth ("DXO Portrait"), dynamic range ("DXO Landscape"), and low-light sensitivity ("DXO Sports") of camera sensors, and also publishes an overall camera score. Of the two cameras under review, the D4 provides substantially higher image quality than the A77, with an overall score that is 11 points higher. This advantage is based on 0.7 bits higher color depth, 0.1 EV of lower 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.

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 D4 Full Frame 16.2 4928 32801080/30p24.713.1296589Nikon D4
 
Sony A77 APS-C 24.0 6000 40001080/60p24.013.280178Sony A77
 
Canon 1D X Full Frame 17.9 5184 34561080/30p23.811.8278682Canon 1D X
 
Nikon D5 Full Frame 20.7 5588 37124K/30p25.112.3234388Nikon D5
 
Nikon D4S Full Frame 16.2 4928 32801080/60p24.413.3307489Nikon D4S
 
Nikon Df Full Frame 16.2 4928 3280none24.613.1327989Nikon Df
 
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
 
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
 
Pentax K-3 APS-C 24.1 6016 40001080/60i23.713.4121680Pentax K-3
 
Sony A6500 APS-C 24.0 6000 40004K/30p24.513.7140585Sony A6500
 
Sony A7 II Full Frame 24.0 6000 40001080/60p24.913.6244990Sony A7 II
 
Sony A77 II APS-C 24.0 6000 40001080/60p........Sony A77 II
 
Sony A99 Full Frame 24.0 6000 40001080/60p25.014.0155589Sony A99

Many modern cameras are not only capable of taking still images, but also of capturing video footage. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the A77 provides a faster frame rate than the D4. It can shoot movie footage at 1080/60p, while the Nikon is limited to 1080/30p.

 

Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. For example, the A77 has an electronic viewfinder (2359k dots), while the D4 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 A77 has a higher magnification than the one of the D4 (0.73x vs 0.70x), 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 D4 and Sony A77 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 D4optical Y 3.2 921 fixed n 1/8000s 11.0 n n Nikon D4
 
Sony A772359 Y 3.0 921 full-flex n 1/8000s 12.0 Y Y Sony A77
 
Canon 1D Xoptical Y 3.2 1040 fixed n 1/8000s 14.0 n n Canon 1D X
 
Nikon D5optical Y 3.2 2359 fixed Y 1/8000s 14.0 n n Nikon D5
 
Nikon D4Soptical Y 3.2 921 fixed n 1/8000s 11.0 n n Nikon D4S
 
Nikon Dfoptical Y 3.2 921 fixed n 1/4000s 5.5 n n Nikon Df
 
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
 
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
 
Pentax K-3optical Y 3.2 1037 fixed n 1/8000s 8.3 Y Y Pentax K-3
 
Sony A65002359 n 3.0 922 tilting Y 1/4000s 11.0 Y Y Sony A6500
 
Sony A7 II2400 n 3.0 1230 tilting n 1/8000s 5.0 n Y Sony A7 II
 
Sony A77 II2359 Y 3.0 1229 full-flex n 1/8000s 12.0 Y Y Sony A77 II
 
Sony A992359 Y 3.0 1229 full-flex n 1/8000s 6.0 n Y Sony A99

One feature that differentiates the A77 and the D4 is in-body image stabilization (IBIS). The A77 reduces the risk of handshake-induced blur with all attached lenses, while the D4 has to rely on optical image stabilization in OIS-equipped lenses to achieve the same effect.

The A77 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 D4 does not have a selfie-screen.

The Nikon D4 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 D4 writes its imaging data to Compact Flash or XQD cards, while the A77 uses SDXC or Memory Stick PRO Duo cards. The D4 features dual card slots, which can be very useful in case a memory card fails. In contrast, the A77 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 D4 and Sony Alpha SLT-A77 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 D4YmonomonoYYmicro2.0---Nikon D4
 
Sony A77YstereomonoY-mini2.0---Sony A77
 
Canon 1D XYmonononeY-mini2.0---Canon 1D X
 
Nikon D5YstereomonoYYmini3.0---Nikon D5
 
Nikon D4SYmonomonoYYmini2.0---Nikon D4S
 
Nikon DfYnonenone--mini2.0---Nikon Df
 
Nikon D600YmonomonoYYmini2.0---Nikon D600
 
Nikon D800YmonomonoYYmini3.0---Nikon D800
 
Nikon D800EYmonomonoYYmini3.0---Nikon D800E
 
Nikon D3SYstereonone--mini2.0---Nikon D3S
 
Nikon D3XYnonenone--mini2.0---Nikon D3X
 
Nikon D3Ynonenone--mini2.0---Nikon D3
 
Pentax K-3YmonomonoYYmini3.0---Pentax K-3
 
Sony A6500YstereomonoY-micro2.0YY-Sony A6500
 
Sony A7 IIYstereomonoYYmicro2.0YY-Sony A7 II
 
Sony A77 IIYstereomonoY-mini2.0YY-Sony A77 II
 
Sony A99YstereomonoYYmini2.0---Sony A99

It is notable that the D4 has a headphone jack, which is not present on the A77 This port makes it possible to attach external headphones and monitor the quality of sound during the recording process.

Both cameras feature a PC Sync terminal to control professional strobe lights, which will be appreciated by studio photographers.

Travel and landscape photographers will find it useful that the A77 has an internal geolocalization sensor and can record GPS coordinates in its EXIF data.

Both the D4 and the A77 have been discontinued, but can regularly be found used on eBay. The A77 was replaced by the Sony A77 II, while the D4 was followed by the Nikon D4S. 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 D4 better than the Sony A77 or vice versa? Below is a summary of the relative strengths of each of the two contestants.

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Advantages of the Nikon D4:

  • Better image quality: Scores substantially higher (11 points) in the DXO overall assessment.
  • Better low-light sensitivity: Requires less light for good images (1.9 stops ISO advantage).
  • Better sound control: Has a headphone port that enables audio monitoring while recording.
  • 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.
  • More portrait friendly: Features an integrated vertical grip for easier portrait shooting.
  • Longer lasting: Can take more shots (2600 versus 470) on a single battery charge.
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
  • More modern: Is somewhat more recent (announced 4 months after the A77).

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Arguments in favor of the Sony Alpha SLT-A77:

  • More detail: Has more megapixels (24 vs 16.2MP), which boosts linear resolution by 22%.
  • Better video: Provides higher movie framerates (1080/60p versus 1080/30p).
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.73x vs 0.70x).
  • More flexible LCD: Has a full-flex screen for odd-angle shots in portrait or landscape orientation.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • More compact: Is smaller (143x104mm vs 160x157mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 608g or 45 percent) and is thus easier to take along.
  • Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
  • Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
  • Easier geotagging: Features an internal GPS sensor to log localization data.
  • More affordable: Was introduced into a lower priced category (77 percent cheaper at launch).
  • More heavily discounted: Has been on the market for longer (launched in August 2011).

If the count of individual advantages (bullet points above) is taken as a guide, the A77 emerges as the winner of the match-up (13 : 10 points). However, the relative importance of the various individual camera aspects will vary according to personal preferences and needs, so that you might like to apply corresponding weights to the particular features before making a decision on a new camera. A professional 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.

D4 10:13 A77

How about other alternatives? Do the specifications of the Nikon D4 and the Sony A77 place the cameras among the top in their class? Find out in the latest Best DSLR Camera listing whether the two cameras rank among the cream of the crop.

In any case, while the specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it says little about, for example, the shooting experience and imaging performance of the D4 and the A77 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 hands-on reviews by experts 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 D4....4.5/5..4.5/5 Jan 2012 5,999iNikon D4
 
Sony A7791/10081/100..4.5/55/5 Aug 2011 1,399iSony A77
 
Canon 1D X....4.5/54.5/54.5/5 Oct 2011 6,799iCanon 1D X
 
Nikon D5..89/1004.5/55/55/5 Jan 2016 6,499iNikon D5
 
Nikon D4S....4.5/55/54.5/5 Feb 2014 6,499iNikon D4S
 
Nikon Df..81/1004/54/54/5 Nov 2013 2,749 iNikon Df
 
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
 
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
 
Pentax K-3..83/1005/54.5/55/5 Oct 2013 1,299iPentax K-3
 
Sony A6500+ +85/1004.5/55/54.5/5 Oct 2016 1,399iSony A6500
 
Sony A7 II+82/1004.5/55/55/5 Nov 2014 1,999iSony A7 II
 
Sony A77 II..80/1004.5/54/55/5 May 2014 1,199 iSony A77 II
 
Sony A99..84/1004.5/5o4.5/5 Sep 2012 2,799iSony A99
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

Care should be taken when interpreting the review scores above, though. The assessments were made in relation to similar cameras of the same technological generation. 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.

Nikon D4:
Check Ebay offers
Sony A77:
Check Ebay offers

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 use the search menu below. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.

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    Specifications: Nikon D4 vs Sony A77

    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 D4 Sony A77
    Camera Type Digital single lens reflex Digital single lens reflex
    Camera Lens Nikon F mount lenses Sony A mount lenses
    Launch Date January 2012 August 2011
    Launch Price USD 5999 USD 1399
    Sensor Specs Nikon D4 Sony A77
    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 1080/30p Video 1080/60p Video
    ISO Setting 100-12800 ISO 100-16000 ISO
    ISO Boost 50-204800 ISO 50-25600 ISO
    Image Processor EXPEED 3 BIONZ X
    DXO Sensor Quality (score) 89 78
    DXO Color Depth (bits) 24.7 24.0
    DXO Dynamic Range (EV) 13.1 13.2
    DXO Low Light (ISO) 2965 801
    Screen Specs Nikon D4 Sony A77
    Viewfinder Type Optical viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.70x 0.73x
    Viewfinder Resolution 2359k dots
    Top-Level Screen Control Panel Control Panel
    LCD Framing Live View Live View
    Rear LCD Size 3.2 inch 3.0 inch
    LCD Resolution 921k dots 921k dots
    LCD Attachment Fixed screen Fully flexible screen
    Shooting Specs Nikon D4 Sony A77
    Autofocus System Phase-detect AF Phase-detect AF
    Manual Focusing AidNo Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/8000/s 1/8000/s
    Continuous Shooting 11 shutter flaps/s 12 shutter flaps/s
    Shutter Life Expectancy400 000 actuations150 000 actuations
    Time-Lapse PhotographyIntervalometer built-inno Intervalometer
    Image StabilizationLens stabilization onlyIn-body stabilization
    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 D4 Sony A77
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket PC Sync socket
    USB Connector USB 2.0 USB 2.0
    HDMI Port micro HDMI mini HDMI
    Microphone Port External MIC port External MIC port
    Headphone Socket Headphone port no Headphone port
    Wifi Support no Wifi no Wifi
    Geotagging no internal GPS GPS built-in
    Body Specs Nikon D4 Sony A77
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type EN-EL18 NP-FM500H
    Battery Life (CIPA)2600 shots per charge470 shots per charge
    Body Dimensions 160 x 157 x 91 mm
    (6.3 x 6.2 x 3.6 in)
    143 x 104 x 81 mm
    (5.6 x 4.1 x 3.2 in)
    Camera Weight 1340 g (47.3 oz) 732 g (25.8 oz)

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