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Nikon D5100 vs Sony A77

The Nikon D5100 and the Sony Alpha SLT-A77 are two digital cameras that were announced, respectively, in April 2011 and August 2011. Both are DSLR (Digital Single Lens Reflex) cameras that are equipped with an APS-C sensor. The Nikon has a resolution of 16.1 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 D5100 versus Sony A77
Nikon D5100 Sony A77
Digital single lens reflex Digital single lens reflex
Nikon F mount lenses Sony A mount lenses
16.1 MP, APS-C Sensor 24 MP, APS-C Sensor
1080/30p Video 1080/60p Video
ISO 100-6,400 (100 - 25,600) ISO 100-16,000 (50 - 25,600)
Optical viewfinder Electronic viewfinder (2359k dots)
3.0 LCD, 921k dots 3.0 LCD, 921k dots
Swivel screen (not touch-sensitive) Fully flexible screen (no touchscreen)
4 shutter flaps per second 12 shutter flaps per second
Lens stabilization onlyIn-body stabilization
not weather sealedWeathersealed body
660 shots per battery charge470 shots per battery charge
128 x 97 x 79 mm, 560 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 D5100 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 D5100 and the Sony A77 are illustrated 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 size dimensions are rounded to the nearest millimeter.

Size Nikon D5100 vs Sony A77
Compare D5100 versus A77 top
Comparison D5100 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 notably larger (20 percent) than the Nikon D5100. Moreover, the A77 is markedly heavier (31 percent) than the D5100. It is noteworthy in this context that the A77 is splash and dust-proof, while the D5100 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. 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 D5100 gets 660 shots out of its EN-EL14 battery, while the A77 can take 470 images on a single charge of its NP-FM500H power pack.

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, you can move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons 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 D5100 5.0 in 3.8 in 3.1 in 19.8 oz 660 n Apr 2011 749i
2.
 
Sony A77 5.6 in 4.1 in 3.2 in 25.8 oz 470 Y Aug 2011 1,399i
3.
 
Canon T2i 5.1 in 3.9 in 2.4 in 18.7 oz 440 n Feb 2010 699i
4.
 
Nikon D5600 4.9 in 3.8 in 2.8 in 16.4 oz 970 n Nov 2016 699 i
5.
 
Nikon D5300 4.9 in 3.9 in 3.0 in 16.9 oz 600 n Oct 2013 799i
6.
 
Nikon D3200 4.9 in 3.8 in 3.0 in 17.8 oz 540 n Apr 2012 599i
7.
 
Nikon D5200 5.1 in 3.9 in 3.1 in 19.6 oz 500 n Nov 2012 749i
8.
 
Nikon D7000 5.2 in 4.1 in 3.0 in 27.5 oz 1050 Y Sep 2010 1,499i
9.
 
Nikon D3100 4.9 in 3.8 in 3.0 in 17.8 oz 550 n Aug 2010 599i
10.
 
Nikon D5000 5.0 in 4.1 in 3.1 in 20.8 oz 510 n Apr 2009 749i
11.
 
Pentax K-3 5.2 in 3.9 in 3.0 in 28.2 oz 560 Y Oct 2013 1,299i
12.
 
Sony A6500 4.7 in 2.6 in 2.1 in 16.0 oz 350 Y Oct 2016 1,399i
13.
 
Sony A7 II 5.0 in 3.8 in 2.4 in 21.1 oz 350 Y Nov 2014 1,999i
14.
 
Sony A77 II 5.6 in 4.1 in 3.2 in 22.8 oz 480 Y May 2014 1,199 i
15.
 
Sony A99 5.8 in 4.4 in 3.1 in 28.6 oz 500 Y Sep 2012 2,799i
16.
 
Sony NEX-5R 4.4 in 2.3 in 1.5 in 9.7 oz 330 n Aug 2012 749i
17.
 
Sony NEX-5N 4.4 in 2.3 in 1.5 in 9.5 oz 460 n Aug 2011 699i
Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.

Any camera decision will obviously take relative prices into account. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The D5100 was launched at a markedly lower price (by 46 percent) than the A77, which puts it into a different market segment. Normally, street prices remain initially close to the MSRP, but after a couple of months, the first discounts appear. 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.

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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.

Both cameras under consideration feature an APS-C sensor, but their sensors differ slightly in size. The sensor area in the A77 is 1 percent smaller. They nevertheless have the same format factor of 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 D5100 and Sony A77 sensor measures

Despite having a slightly smaller sensor, the A77 offers a higher resolution of 24 megapixels, compared with 16.1 MP of the D5100. 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 4.80μm for the D5100). However, it should be noted that the A77 is a somewhat more recent model (by 4 months) than the D5100, and its sensor might have benefitted from technological advances during this time that partly offset its pixel-size disadvantage.

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 inches or 76.2 x 50.8 cm, for very good quality (250 dpi) 24 x 16 inches or 61 x 40.6 cm, and for excellent quality (300 dpi) 20 x 13.3 inches or 50.8 x 33.9 cm. The corresponding values for the Nikon D5100 are 24.6 x 16.3 inches or 62.6 x 41.5 cm for good quality, 19.7 x 13.1 inches or 50.1 x 33.2 cm for very good quality, and 16.4 x 10.9 inches or 41.7 x 27.6 cm for excellent quality prints.

The Nikon D5100 has a native sensitivity range from ISO 100 to ISO 6400, which can be extended to ISO 100-25600. 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.

D5100 versus A77 MP

For many cameras, data on sensor performance has been reported by DXO Mark. 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"). The Overall DXO ratings for the two cameras under consideration are close, suggesting that they provide similar imaging performance. The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-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 D5100 APS-C 16.1 4928 32641080/30p23.513.6118380
2.
 
Sony A77 APS-C 24.0 6000 40001080/60p24.013.280178
3.
 
Canon T2i APS-C 17.9 5184 34561080/30p22.111.578466
4.
 
Nikon D5600 APS-C 24.0 6000 40001080/60p24.114.0130684
5.
 
Nikon D5300 APS-C 24.0 6000 40001080/60p24.013.9133883
6.
 
Nikon D3200 APS-C 24.1 6016 40001080/30p24.113.2113181
7.
 
Nikon D5200 APS-C 24.0 6000 40001080/60i24.213.9128484
8.
 
Nikon D7000 APS-C 16.1 4928 326410800/24p23.513.9116780
9.
 
Nikon D3100 APS-C 14.2 4608 30721080/24p22.511.391967
10.
 
Nikon D5000 APS-C 12.2 4288 2848720/24p22.712.586872
11.
 
Pentax K-3 APS-C 24.1 6016 40001080/60i23.713.4121680
12.
 
Sony A6500 APS-C 24.0 6000 40004K/30p24.513.7140585
13.
 
Sony A7 II Full Frame 24.0 6000 40001080/60p24.913.6244990
14.
 
Sony A77 II APS-C 24.0 6000 40001080/60p........
15.
 
Sony A99 Full Frame 24.0 6000 40001080/60p25.014.0155589
16.
 
Sony NEX-5R APS-C 16.0 4912 32641080/60i23.713.191078
17.
 
Sony NEX-5N APS-C 16.0 4912 32641080/60i23.612.7107977

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 A77 provides a faster frame rate than the D5100. It can shoot movie footage at 1080/60p, while the Nikon is limited to 1080/30p.

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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 D5100 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 A77 offers a wider field of view (100%) than the one in the D5100 (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the A77 has a higher magnification (0.73x vs 0.51x), 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 D5100 and Sony A77 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
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
1.
 
Nikon D5100optical n 3.0 921 swivel n 1/4000s 4.0 Y n
2.
 
Sony A772359 Y 3.0 921 full-flex n 1/8000s 12.0 Y Y
3.
 
Canon T2ioptical n 3.0 1040 fixed n 1/4000s 3.7 Y n
4.
 
Nikon D5600optical n 3.2 1037 swivel Y 1/4000s 5.0 Y n
5.
 
Nikon D5300optical n 3.2 1037 swivel n 1/4000s 5.0 Y n
6.
 
Nikon D3200optical n 3.0 921 fixed n 1/4000s 4.0 Y n
7.
 
Nikon D5200optical n 3.0 921 swivel n 1/4000s 5.0 Y n
8.
 
Nikon D7000optical Y 3.0 921 fixed n 1/8000s 6.0 Y n
9.
 
Nikon D3100optical n 3.0 230 fixed n 1/4000s 3.0 Y n
10.
 
Nikon D5000optical n 2.7 230 full-flex n 1/4000s 4.0 Y n
11.
 
Pentax K-3optical Y 3.2 1037 fixed n 1/8000s 8.3 Y Y
12.
 
Sony A65002359 n 3.0 922 tilting Y 1/4000s 11.0 Y Y
13.
 
Sony A7 II2400 n 3.0 1230 tilting n 1/8000s 5.0 n Y
14.
 
Sony A77 II2359 Y 3.0 1229 full-flex n 1/8000s 12.0 Y Y
15.
 
Sony A992359 Y 3.0 1229 full-flex n 1/8000s 6.0 n Y
16.
 
Sony NEX-5Roptional n 3.0 920 tilting Y 1/4000s 10.0 n n
17.
 
Sony NEX-5Noptional n 3.0 920 tilting Y 1/4000s 10.0 n n

One feature that differentiates the A77 and the D5100 is in-body image stabilization (IBIS). The A77 reduces the risk of handshake-induced blur with all attached lenses, while the D5100 offers no blur reduction with lenses that themselves do not provide optical image stabilization.

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

The Nikon D5100 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 D5100 writes its imaging data to SDXC cards, while the A77 uses SDXC or Memory Stick PRO Duo cards. Both cameras can use UHS-I cards, which provide for Ultra High Speed data transfer of up to 104 MB/s.

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Connectivity comparison

For some imaging applications, the extent to which a camera can communicate with its environment can be an important aspect in the camera decision process. The table below provides an overview of the connectivity of the Nikon D5100 and Sony Alpha SLT-A77 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
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Nikon D5100YmonomonoY-mini2.0---
2.
 
Sony A77YstereomonoY-mini2.0---
3.
 
Canon T2iYstereo-Y-mini2.0---
4.
 
Nikon D5600YstereomonoY-mini2.0YYY
5.
 
Nikon D5300YstereomonoY-mini2.0Y--
6.
 
Nikon D3200YmonomonoY-mini2.0---
7.
 
Nikon D5200YstereomonoY-mini2.0---
8.
 
Nikon D7000YmonomonoY-mini2.0---
9.
 
Nikon D3100Ymonomono--mini2.0---
10.
 
Nikon D5000Ymonomono--mini2.0---
11.
 
Pentax K-3YmonomonoYYmini3.0---
12.
 
Sony A6500YstereomonoY-micro2.0YY-
13.
 
Sony A7 IIYstereomonoYYmicro2.0YY-
14.
 
Sony A77 IIYstereomonoY-mini2.0YY-
15.
 
Sony A99YstereomonoYYmini2.0---
16.
 
Sony NEX-5RYstereomono--mini2.0Y--
17.
 
Sony NEX-5NYstereomono--mini2.0---

Studio photographers will appreciate that the Sony A77 (unlike the D5100) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

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 D5100 and the A77 have been discontinued, but can regularly be found used on eBay. The D5100 was replaced by the Nikon D5200, while the A77 was followed by the Sony A77 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.

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Review summary

So what conclusions can be drawn? Which of the two cameras – the Nikon D5100 or the Sony A77 – 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 D5100:

  • Better low-light sensitivity: Requires less light for good images (0.6 stops ISO advantage).
  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • More compact: Is smaller (128x97mm vs 143x104mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 172g or 23 percent) and hence easier to carry around.
  • Longer lasting: Can take more shots (660 versus 470) on a single battery charge.
  • More affordable: Was introduced into a lower priced category (46 percent cheaper at launch).
  • More heavily discounted: Has been on the market for longer (launched in April 2011).

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Reasons to prefer the Sony Alpha SLT-A77:

  • More detail: Has more megapixels (24 vs 16.1MP), 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.
  • More complete view: Has a viewfinder with a larger field of view (100% vs 95%).
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.73x vs 0.51x).
  • Easier setting verification: Features a control panel on top to check shooting parameters.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • Faster burst: Shoots at higher frequency (12 vs 4 flaps/sec) to capture the decisive moment.
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
  • Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
  • Easier geotagging: Features an internal GPS sensor to log localization data.
  • Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
  • More modern: Was introduced somewhat (4 months) more recently.

If the number of relative strengths (bullet points above) is taken as a guide, the A77 is the clear winner of the contest (13 : 8 points). However, the pertinence of the various camera strengths will differ across photographers, so that you might want to weigh individual camera traits according to their importance for your own imaging needs before making a camera decision. 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.

D5100 08:13 A77

How about other alternatives? Do the specifications of the Nikon D5100 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 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 D5100 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 expert reviews are important. The adjacent summary-table relays the overall verdicts of several of the most popular camera review sites (amateurphotographer [AP], cameralabs [CL], 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 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Nikon D51005/5+ +76/1004.5/54.5/5 Apr 2011 749i
2.
 
Sony A775/591/10081/100..5/5 Aug 2011 1,399i
3.
 
Canon T2i..+ +77/1004/54.5/5 Feb 2010 699i
4.
 
Nikon D56004/5..79/1004.5/54/5 Nov 2016 699 i
5.
 
Nikon D53004/5+ +79/1004.5/54.5/5 Oct 2013 799i
6.
 
Nikon D32005/5+ +73/1004.5/54.5/5 Apr 2012 599i
7.
 
Nikon D52004/5+ +79/1004.5/54.5/5 Nov 2012 749i
8.
 
Nikon D70004/5..80/1004.5/54.5/5 Sep 2010 1,499i
9.
 
Nikon D31005/5+ +72/1004.5/54.5/5 Aug 2010 599i
10.
 
Nikon D5000..+ +75/1004/54.5/5 Apr 2009 749i
11.
 
Pentax K-34/5..83/1005/55/5 Oct 2013 1,299i
12.
 
Sony A65005/5+ +85/1004.5/54.5/5 Oct 2016 1,399i
13.
 
Sony A7 II5/5+82/1004.5/55/5 Nov 2014 1,999i
14.
 
Sony A77 II4/5..80/1004.5/55/5 May 2014 1,199 i
15.
 
Sony A995/5..84/1004.5/54.5/5 Sep 2012 2,799i
16.
 
Sony NEX-5R......4.5/54.5/5 Aug 2012 749i
17.
 
Sony NEX-5N3/5+ +79/1004.5/54.5/5 Aug 2011 699i
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

Care should be taken when interpreting the review scores above, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. Thus, a score needs to be put into the context of the launch date and the launch price 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 D5100:
Check Ebay offers
Sony A77:
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 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 D5100 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 D5100 Sony A77
    Camera Type Digital single lens reflex Digital single lens reflex
    Camera Lens Nikon F mount lenses Sony A mount lenses
    Launch Date April 2011 August 2011
    Launch Price USD 749 USD 1,399
    Sensor Specs Nikon D5100 Sony A77
    Sensor Technology CMOS CMOS
    Sensor Format APS-C Sensor APS-C Sensor
    Sensor Size 23.6 x 15.7 mm 23.5 x 15.6 mm
    Sensor Area 370.52 mm2 366.6 mm2
    Sensor Diagonal 28.3 mm 28.2 mm
    Crop Factor 1.5x 1.5x
    Sensor Resolution 16.1 Megapixels 24 Megapixels
    Image Resolution 4928 x 3264 pixels 6000 x 4000 pixels
    Pixel Pitch 4.80 μm 3.91 μm
    Pixel Density 4.34 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 - 6,400 ISO 100 - 16,000 ISO
    ISO Boost 100 - 25,600 ISO 50 - 25,600 ISO
    Image Processor EXPEED 2 BIONZ X
    DXO Sensor Quality (score) 80 78
    DXO Color Depth (bits) 23.5 24.0
    DXO Dynamic Range (EV) 13.6 13.2
    DXO Low Light (ISO) 1183 801
    Screen Specs Nikon D5100 Sony A77
    Viewfinder Type Optical viewfinder Electronic viewfinder
    Viewfinder Field of View 95% 100%
    Viewfinder Magnification 0.51x 0.73x
    Viewfinder Resolution 2359k dots
    Top-Level Screen no Top Display Control Panel
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 921k dots 921k dots
    LCD Attachment Swivel screen Fully flexible screen
    Shooting Specs Nikon D5100 Sony A77
    Focus System Phase-detect AF Phase-detect AF
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/4000s 1/8000s
    Continuous Shooting 4 shutter flaps/s 12 shutter flaps/s
    Shutter Life Expectancy100 000 actuations150 000 actuations
    Time-Lapse PhotographyIntervalometer built-inno Intervalometer
    Image StabilizationLens stabilization onlyIn-body stabilization
    Fill Flash Build-in Flash Build-in Flash
    Storage Medium SDXC cards MS or SDXC cards
    Second Storage Option Single card slot Single card slot
    UHS card support UHS-I UHS-I
    Connectivity Specs Nikon D5100 Sony A77
    External Flash Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 2.0
    HDMI Port mini HDMI mini HDMI
    Microphone Port External MIC port External MIC port
    Wifi Support no Wifi no Wifi
    Geotagging no internal GPS GPS built-in
    Body Specs Nikon D5100 Sony A77
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type EN-EL14 NP-FM500H
    Battery Life (CIPA)660 shots per charge470 shots per charge
    Body Dimensions 128 x 97 x 79 mm
    (5.0 x 3.8 x 3.1 in)
    143 x 104 x 81 mm
    (5.6 x 4.1 x 3.2 in)
    Camera Weight 560 g (19.8 oz) 732 g (25.8 oz)

    Did you notice an error on this page? If so, please get in touch, so that we can correct the information.

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