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Olympus TG-4 vs Sony A77 II

The Olympus Tough TG-4 and the Sony Alpha SLT-A77 II are two digital cameras that were revealed to the public, respectively, in April 2015 and May 2014. The TG-4 is a fixed lens compact, while the A77 II is a DSLR. The cameras are based on a 1/2.3-inch (TG-4) and an APS-C (A77 II) sensor. The Olympus has a resolution of 15.9 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
Olympus TG-4   VS Sony A77 II
Olympus TG-4 Sony A77 II
Fixed lens compact camera Digital single lens reflex
25-100mm f/2.0-4.9 Sony A mount lenses
15.9 MP, 1/2.3" Sensor 24 MP, APS-C Sensor
1080/30p Video 1080/60p Video
ISO 100-6400 ISO 100-25600 (50-51200)
No viewfinder, LCD framing Electronic viewfinder (2359k dots)
3.0" LCD, 460k dots 3.0" LCD, 1229k dots
Fixed screen (not touch-sensitive) Fully flexible screen (no touchscreen)
5 shutter flaps per second 12 shutter flaps per second
In-body stabilizationIn-body stabilization
Waterproof body (nom)Weathersealed body
380 shots per battery charge480 shots per battery charge
112 x 66 x 31 mm, 247 g 143 x 104 x 81 mm, 647 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Olympus Tough TG-4 and the Sony Alpha SLT-A77 II? 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 Olympus TG-4 and the Sony A77 II are illustrated 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 size dimensions are rounded to the nearest millimeter.

The TG-4 can be obtained in two different colors (black, red), while the A77 II is only available in black.

Size Olympus TG-4 vs Sony A77 II
Compare TG-4 versus A77 II top
Comparison TG-4 or A77 II rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A77 II is considerably larger (101 percent) than the Olympus TG-4. 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. More than that, the TG-4 is water-proof up to 15m and can, thus, be used for underwater photography.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the TG-4 has a lens built in, whereas the A77 II is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup.

Concerning battery life, the TG-4 gets 380 shots out of its LI-92B battery, while the A77 II can take 480 images on a single charge of its NP-FM500H power pack. The power pack in the TG-4 can be charged via the USB port, so that it is not always necessary to take the battery charger along when travelling.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. In case you want to display and compare another camera duo, just click on the right or left arrow next to the camera that you would like to inspect. Alternatively, you can also use the CAM-parator to select your camera combination among a larger number of options.

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
 
Olympus TG-4» 4.4 in 2.6 in 1.2 in 8.7 oz 380 Y Apr 2015 379iOlympus TG-4
 
Sony A77 II« 5.6 in 4.1 in 3.2 in 22.8 oz 480 Y May 2014 1,199 iSony A77 II
 
Canon SX700« » 4.4 in 2.6 in 1.4 in 9.5 oz 250 n Feb 2014 349iCanon SX700
 
Fujifilm XP140« » 4.3 in 2.8 in 1.1 in 7.3 oz 240 Y Feb 2019 229 iFujifilm XP140
 
Fujifilm XP130« » 4.3 in 2.8 in 1.1 in 7.3 oz 240 n Jan 2018 229iFujifilm XP130
 
Fujifilm XP120« » 4.3 in 2.8 in 1.1 in 7.2 oz 210 Y Jan 2017 229iFujifilm XP120
 
Nikon W300« » 4.4 in 2.6 in 1.1 in 8.1 oz 280 Y May 2017 389 iNikon W300
 
Nikon D7200« » 5.4 in 4.2 in 3.0 in 27.0 oz 1110 Y Mar 2015 1,199iNikon D7200
 
Nikon D7100« » 5.4 in 4.2 in 3.0 in 27.0 oz 950 Y Feb 2013 1,199iNikon D7100
 
Olympus TG-6« » 4.4 in 2.6 in 1.3 in 8.9 oz 340 Y May 2019 449 iOlympus TG-6
 
Olympus TG-5« » 4.4 in 2.6 in 1.3 in 8.8 oz 340 Y May 2017 449iOlympus TG-5
 
Olympus E-M5 II« » 4.9 in 3.3 in 1.8 in 16.5 oz 310 Y Feb 2015 1,099iOlympus E-M5 II
 
Sony HX80« » 4.0 in 2.3 in 1.4 in 8.6 oz 390 n Mar 2016 349 iSony HX80
 
Sony HX90V« » 4.0 in 2.3 in 1.4 in 8.6 oz 360 n Apr 2015 429 iSony HX90V
 
Sony A68« » 5.6 in 4.1 in 3.2 in 21.5 oz 540 n Nov 2015 699iSony A68
 
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« » 5.6 in 4.1 in 3.2 in 25.8 oz 470 Y Aug 2011 1,399iSony A77
Note: Measurements and pricing do not include easily detachable parts, such as interchangeable lenses or optional viewfinders.

Any camera decision will naturally be influenced heavily by the price. 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 TG-4 was launched at a lower price than the A77 II, despite having a lens built in. 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 tend to have larger individual pixels that provide better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixel-units in a sensor of the same technological generation. Further, a large sensor camera will give the photographer additional creative options when using shallow depth-of-field to isolate a subject from its background. On the downside, larger sensors tend to be associated with larger, more expensive camera bodies and lenses.

Of the two cameras under consideration, the Olympus TG-4 features a 1/2.3-inch sensor and the Sony A77 II an APS-C sensor. The sensor area in the A77 II is 1211 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 5.6 and 1.5. The sensor in the TG-4 has a native 4:3 aspect ratio, while the one in the A77 II offers a 3:2 aspect.

Olympus TG-4 and Sony A77 II sensor measures

With 24MP, the A77 II offers a higher resolution than the TG-4 (15.9MP), but the A77 II nevertheless has larger individual pixels (pixel pitch of 3.91μm versus 1.33μm for the TG-4) due to its larger sensor. However, the TG-4 is a somewhat more recent model (by 11 months) than the A77 II, and its sensor might have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units.

The resolution advantage of the Sony A77 II implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A77 II 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 Olympus TG-4 are 23 x 17.3 inch or 58.5 x 43.9 cm for good quality, 18.4 x 13.8 inch or 46.8 x 35.1 cm for very good quality, and 15.4 x 11.5 inch or 39 x 29.3 cm for excellent quality prints.

The Olympus Tough TG-4 has a native sensitivity range from ISO 100 to ISO 6400. The corresponding ISO settings for the Sony Alpha SLT-A77 II are ISO 100 to ISO 25600, with the possibility to increase the ISO range to 50-51200.

TG-4 versus A77 II MP

Consistent information on actual sensor performance is available from DXO Mark for many cameras. This service determines an overall sensor rating, as well as sub-scores for low-light sensitivity ("DXO Sports"), dynamic range ("DXO Landscape"), and color depth ("DXO Portrait"). 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
 
Olympus TG-4 1/2.3 15.9 4608 34561080/30p........Olympus TG-4
 
Sony A77 II APS-C 24.0 6000 40001080/60p........Sony A77 II
 
Canon SX700 1/2.3 15.9 4608 34561080/60p........Canon SX700
 
Fujifilm XP140 1/2.3 15.9 4608 34564K/15p........Fujifilm XP140
 
Fujifilm XP130 1/2.3 15.9 4608 34561080/60p........Fujifilm XP130
 
Fujifilm XP120 1/2.3 15.9 4608 34561080/60p........Fujifilm XP120
 
Nikon W300 1/2.3 15.9 4608 34564K/30p........Nikon W300
 
Nikon D7200 APS-C 24.0 6000 40001080/60p24.514.6133387Nikon D7200
 
Nikon D7100 APS-C 24.0 6000 40001080/60p24.213.7125683Nikon D7100
 
Olympus TG-6 1/2.3 12.0 4000 30004K/30p........Olympus TG-6
 
Olympus TG-5 1/2.3 12.0 4000 30004K/30p........Olympus TG-5
 
Olympus E-M5 II Four Thirds 15.9 4608 34561080/60p23.012.584273Olympus E-M5 II
 
Sony HX80 1/2.3 18.0 4896 36721080/60p........Sony HX80
 
Sony HX90V 1/2.3 18.0 4896 36721080/60p........Sony HX90V
 
Sony A68 APS-C 24.0 6000 40001080/60i24.113.570179Sony A68
 
Sony A7 II Full Frame 24.0 6000 40001080/60p24.913.6244990Sony A7 II
 
Sony A77 APS-C 24.0 6000 40001080/60p24.013.280178Sony A77

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 II provides a faster frame rate than the TG-4. It can shoot movie footage at 1080/60p, while the Olympus is limited to 1080/30p.

 

Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. For example, the A77 II has an electronic viewfinder (2359k dots), which can be very helpful when shooting in bright sunlight. In contrast, the TG-4 relies on live view and the rear LCD for framing. The table below summarizes some of the other core capabilities of the Olympus TG-4 and Sony A77 II in connection with corresponding information for a sample of similar 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
 
Olympus TG-4none n 3.0 460 fixed n 1/2000s 5.0 Y Y Olympus TG-4
 
Sony A77 II2359 Y 3.0 1229 full-flex n 1/8000s 12.0 Y Y Sony A77 II
 
Canon SX700none n 3.0 922 fixed n 1/3200s 8.5 Y Y Canon SX700
 
Fujifilm XP140none n 3.0 920 fixed n 1/2000s 10.0 Y Y Fujifilm XP140
 
Fujifilm XP130none n 3.0 920 fixed n 1/2000s 10.0 Y Y Fujifilm XP130
 
Fujifilm XP120none n 3.0 920 fixed n 1/2000s 10.0 Y Y Fujifilm XP120
 
Nikon W300none n 3.0 921 fixed n 1/4000s 7.0 Y Y Nikon W300
 
Nikon D7200optical Y 3.2 1229 fixed n 1/8000s 6.0 Y n Nikon D7200
 
Nikon D7100optical Y 3.2 1229 fixed n 1/8000s 6.0 Y n Nikon D7100
 
Olympus TG-6none n 3.0 1040 fixed n 1/2000s 20.0 Y Y Olympus TG-6
 
Olympus TG-5none n 3.0 460 fixed n 1/2000s 20.0 Y Y Olympus TG-5
 
Olympus E-M5 II2360 n 3.0 1037 swivel Y 1/8000s 10.0 n Y Olympus E-M5 II
 
Sony HX80638 n 3.0 922 tilting n 1/2000s 10.0 Y Y Sony HX80
 
Sony HX90V638 n 3.0 921 tilting n 1/2000s 10.0 Y Y Sony HX90V
 
Sony A681440 Y 2.7 460 tilting n 1/4000s 8.0 Y Y Sony A68
 
Sony A7 II2400 n 3.0 1230 tilting n 1/8000s 5.0 n Y Sony A7 II
 
Sony A772359 Y 3.0 921 full-flex n 1/8000s 12.0 Y Y Sony A77

One feature that is present on the A77 II, but is missing on the TG-4 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 A77 II 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 TG-4 does not have a selfie-screen.

The Olympus TG-4 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 TG-4 writes its imaging data to SDXC cards, while the A77 II 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.

 

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 Olympus Tough TG-4 and Sony Alpha SLT-A77 II 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
 
Olympus TG-4-stereomono--micro2.0Y--Olympus TG-4
 
Sony A77 IIYstereomonoY-mini2.0YY-Sony A77 II
 
Canon SX700-stereomono--micro2.0YY-Canon SX700
 
Fujifilm XP140-monomono--micro2.0Y-YFujifilm XP140
 
Fujifilm XP130-monomono--micro2.0Y-YFujifilm XP130
 
Fujifilm XP120-monomono--micro2.0Y--Fujifilm XP120
 
Nikon W300-stereomono--micro2.0Y-YNikon W300
 
Nikon D7200YstereomonoYYmini2.0YY-Nikon D7200
 
Nikon D7100YstereomonoYYmini2.0---Nikon D7100
 
Olympus TG-6-stereomono--micro2.0Y--Olympus TG-6
 
Olympus TG-5-stereomono--micro2.0Y--Olympus TG-5
 
Olympus E-M5 IIYstereomonoY-micro2.0Y--Olympus E-M5 II
 
Sony HX80-stereomono--micro2.0YY-Sony HX80
 
Sony HX90V-stereomono--micro2.0YY-Sony HX90V
 
Sony A68YstereomonoY-micro2.0---Sony A68
 
Sony A7 IIYstereomonoYYmicro2.0YY-Sony A7 II
 
Sony A77YstereomonoY-mini2.0---Sony A77

It is notable that the A77 II has a microphone port, which can help to improve the quality of audio recordings by attaching an external microphone. The TG-4 does not feature such a mic input.

Studio photographers will appreciate that the Sony A77 II (unlike the TG-4) 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 TG-4 has an internal geolocalization sensor and can record GPS coordinates in its EXIF data.

The A77 II is a recent model that features in the current product line-up of Sony. In contrast, the TG-4 has been discontinued (but it can be found pre-owned on eBay). As a replacement in the same line of cameras, the TG-4 was succeeded by the Olympus TG-5. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Olympus and Sony websites.

Review summary

So what conclusions can be drawn? Is the Olympus TG-4 better than the Sony A77 II or vice versa? A synthesis of the relative strong points of each of the models is listed below.

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Reasons to prefer the Olympus Tough TG-4:

  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • Ready to shoot: Comes with a built-in lens, while the A77 II requires a separate lens.
  • More compact: Is smaller (112x66mm vs 143x104mm) and thus needs less room in the bag.
  • Less heavy: Is lighter even though it comes with a built-in lens (unlike the A77 II).
  • Easier travel charging: Can be conveniently charged via its USB port.
  • Water-proof: Is rugged and sealed and can thus be used for underwater photography (up to 15m).
  • Easier geotagging: Features an internal GPS sensor to log localization data.
  • More affordable: Was introduced at a lower price, despite coming with a built-in lens.
  • More modern: Is somewhat more recent (announced 11 months after the A77 II).

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Advantages of the Sony Alpha SLT-A77 II:

  • More detail: Has more megapixels (24 vs 15.9MP), which boosts linear resolution by 25%.
  • Better image quality: Features bigger pixels on a larger sensor for higher quality imaging.
  • Richer colors: The pixel size advantage translates into images with better, more accurate colors.
  • More dynamic range: Larger pixels capture a wider spectrum of light and dark details.
  • Better low-light sensitivity: Larger pixels means good image quality even under poor lighting.
  • Better video: Provides higher movie framerates (1080/60p versus 1080/30p).
  • Better sound: Can connect to an external microphone for higher quality sound recording.
  • Easier framing: Has an electronic viewfinder for image composition and settings control.
  • Easier setting verification: Features a control panel on top to check shooting parameters.
  • More detailed LCD: Has a higher resolution rear screen (1229k vs 460k dots).
  • 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.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/2000s) to freeze action.
  • Faster burst: Shoots at higher frequency (12 vs 5 flaps/sec) to capture the decisive moment.
  • More flexible: Makes it possible to change lenses and thus to use specialty optics.
  • Longer lasting: Gets more shots (480 versus 380) out of a single battery charge.
  • Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
  • Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
  • Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
  • More heavily discounted: Has been on the market for longer (launched in May 2014).

If the number of relative strengths (bullet points above) is taken as a guide, the A77 II is the clear winner of the contest (20 : 8 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 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.

TG-4 08:20 A77 II

How about other alternatives? Do the specifications of the Olympus TG-4 and the Sony A77 II place the cameras among the top in their class? Find out in the latest Best Travel-Zoom Camera and Best DSLR Camera listings 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 TG-4 and the A77 II 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 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
 
Olympus TG-4+79/1004/54/54/5 Apr 2015 379iOlympus TG-4
 
Sony A77 II..80/1004.5/54/55/5 May 2014 1,199 iSony A77 II
 
Canon SX700+ +..4/5..4/5 Feb 2014 349iCanon SX700
 
Fujifilm XP140+..3.5/5..4/5 Feb 2019 229 iFujifilm XP140
 
Fujifilm XP130o..3.5/5..4/5 Jan 2018 229iFujifilm XP130
 
Fujifilm XP120o..3.5/5..4/5 Jan 2017 229iFujifilm XP120
 
Nikon W300+..4/5..4/5 May 2017 389 iNikon W300
 
Nikon D7200+ +84/1004.5/54/54.5/5 Mar 2015 1,199iNikon D7200
 
Nikon D7100+ +85/1004.5/55/54.5/5 Feb 2013 1,199iNikon D7100
 
Olympus TG-6+ +76/1004/5..4/5 May 2019 449 iOlympus TG-6
 
Olympus TG-5+ +..4/5o4/5 May 2017 449iOlympus TG-5
 
Olympus E-M5 II+ +81/1005/54.5/55/5 Feb 2015 1,099iOlympus E-M5 II
 
Sony HX80.......... Mar 2016 349 iSony HX80
 
Sony HX90V+ +..4/5..4.5/5 Apr 2015 429 iSony HX90V
 
Sony A68....4/5..4/5 Nov 2015 699iSony A68
 
Sony A7 II+82/1004.5/55/55/5 Nov 2014 1,999iSony A7 II
 
Sony A7791/10081/100..4.5/55/5 Aug 2011 1,399iSony A77
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The review scores listed above should be treated 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 rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

Olympus TG-4:
Check Ebay offers
Sony A77 II:
Check Amazon price

Other camera comparisons

Did this review help to inform your camera decision process? In case you are interested in seeing how other cameras pair up, just make a corresponding selection in the search boxes 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: Olympus TG-4 vs Sony A77 II

    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 Olympus TG-4 Sony A77 II
    Camera Type Fixed lens compact camera Digital single lens reflex
    Camera Lens 25-100mm f/2.0-4.9 Sony A mount lenses
    Launch Date April 2015 May 2014
    Launch Price USD 379 USD 1199
    Sensor Specs Olympus TG-4 Sony A77 II
    Sensor Technology BSI-CMOS CMOS
    Sensor Format 1/2.3" Sensor APS-C Sensor
    Sensor Size 6.17 x 4.55 mm 23.5 x 15.6 mm
    Sensor Area 28.0735 mm2 366.6 mm2
    Sensor Diagonal 7.7 mm 28.2 mm
    Crop Factor 5.6x 1.5x
    Sensor Resolution 15.9 Megapixels 24 Megapixels
    Image Resolution 4608 x 3456 pixels 6000 x 4000 pixels
    Pixel Pitch 1.33 μm 3.91 μm
    Pixel Density 56.73 MP/cm2 6.55 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability 1080/30p Video 1080/60p Video
    ISO Setting 100-6400 ISO 100-25600 ISO
    ISO Boost no Enhancement 50-51200 ISO
    Image Processor TruePic VII BIONZ X
    Screen Specs Olympus TG-4 Sony A77 II
    Viewfinder Type No viewfinder Electronic viewfinder
    Viewfinder Field of View 100%
    Viewfinder Magnification 0.73x
    Viewfinder Resolution 2359k dots
    Top-Level Screen no Top Display Control Panel
    LCD Framing Live View Live View
    Rear LCD Size 3.0 inch 3.0 inch
    LCD Resolution 460k dots 1229k dots
    LCD Attachment Fixed screen Fully flexible screen
    Shooting Specs Olympus TG-4 Sony A77 II
    Autofocus System Contrast-detect AF Phase-detect AF
    Manual Focusing AidNo Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/2000/s 1/8000/s
    Continuous Shooting 5 shutter flaps/s 12 shutter flaps/s
    Time-Lapse PhotographyIntervalometer built-inno Intervalometer
    Image StabilizationIn-body stabilizationIn-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 Olympus TG-4 Sony A77 II
    External Flash no Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 2.0
    HDMI Port micro HDMI mini HDMI
    Microphone Port no MIC socket External MIC port
    Wifi Support Wifi built-in Wifi built-in
    Near-Field Communication no NFC NFC built-in
    Geotagging GPS built-in no internal GPS
    Body Specs Olympus TG-4 Sony A77 II
    Environmental SealingWaterproof body (15m)Weathersealed body
    Battery Type LI-92B NP-FM500H
    Battery Life (CIPA)380 shots per charge480 shots per charge
    In-Camera Charging USB charging no USB charging
    Body Dimensions 112 x 66 x 31 mm
    (4.4 x 2.6 x 1.2 in)
    143 x 104 x 81 mm
    (5.6 x 4.1 x 3.2 in)
    Camera Weight 247 g (8.7 oz) 647 g (22.8 oz)

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