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Olympus E-520 vs Sony A77 II

The Olympus E-520 and the Sony Alpha SLT-A77 II are two digital cameras that were announced, respectively, in May 2008 and May 2014. Both are DSLR (Digital Single Lens Reflex) cameras that are based on a Four Thirds (E-520) and an APS-C (A77 II) sensor. The Olympus has a resolution of 10 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 E-520
versus
Sony A77 II
Olympus E-520   Sony A77 II
Digital single lens reflex Digital single lens reflex
Four Thirds lenses Sony A mount lenses
10 MP – Four Thirds sensor 24 MP – APS-C sensor
no Video 1080/60p Video
ISO 100-1,600 ISO 100-25,600 (50 - 51,200)
Optical viewfinder Electronic viewfinder (2359k dots)
2.7" LCD – 215k dots 2.7" LCD – 1229k dots
Fixed screen (not touch-sensitive) Fully flexible screen (no touchscreen)
3.5 shutter flaps per second 12 shutter flaps per second
In-body stabilizationIn-body stabilization
not weather sealedWeathersealed body
750 shots per battery charge480 shots per battery charge
136 x 92 x 68 mm, 535 g 143 x 104 x 81 mm, 647 g
Olympus E-520:
Check Ebay offers
Sony A77 II:
Check Amazon price

Going beyond this snapshot of core features and characteristics, what are the differences between the Olympus E-520 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 E-520 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.

Size Olympus E-520 vs Sony A77 II
Compare E-520 versus A77 II top
Comparison E-520 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 notably larger (19 percent) than the Olympus E-520. Moreover, the A77 II is markedly heavier (21 percent) than the E-520. It is noteworthy in this context that the A77 II is splash and dust-proof, while the E-520 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 E-520 gets 750 shots out of its BLM-1 battery, while the A77 II can take 480 images on a single charge of its NP-FM500H power pack.

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, 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.
 
Olympus E-520 136 mm 92 mm 68 mm 535 g 750 n May 2008 699i
2.
 
Sony A77 II 143 mm 104 mm 81 mm 647 g 480 Y May 2014 1,199 i
3.
 
Nikon D7200 136 mm 107 mm 76 mm 765 g 1110 Y Mar 2015 1,199i
4.
 
Nikon D7100 136 mm 107 mm 76 mm 765 g 950 Y Feb 2013 1,199i
5.
 
Olympus E-450 130 mm 91 mm 53 mm 440 g 500 n Mar 2009 499i
6.
 
Olympus E-600 130 mm 94 mm 60 mm 535 g 500 n Aug 2009 449i
7.
 
Olympus E-620 130 mm 94 mm 60 mm 521 g 500 n Feb 2009 699i
8.
 
Olympus E-P1 121 mm 70 mm 36 mm 355 g 300 n Jun 2009 799i
9.
 
Olympus E-P2 121 mm 70 mm 36 mm 355 g 300 n Nov 2009 799i
10.
 
Olympus E-30 142 mm 108 mm 75 mm 701 g 750 n Nov 2008 1,299i
11.
 
Olympus E-420 130 mm 91 mm 53 mm 440 g 500 n Mar 2008 599i
12.
 
Olympus E-410 130 mm 91 mm 53 mm 435 g 500 n Mar 2007 699i
13.
 
Olympus E-510 136 mm 92 mm 68 mm 538 g 750 n Mar 2007 799i
14.
 
Panasonic L10 135 mm 96 mm 78 mm 556 g 450 n Aug 2007 599i
15.
 
Sony A68 143 mm 104 mm 81 mm 610 g 540 n Nov 2015 699i
16.
 
Sony A7 II 127 mm 96 mm 60 mm 599 g 350 Y Nov 2014 1,999i
17.
 
Sony A77 143 mm 104 mm 81 mm 732 g 470 Y Aug 2011 1,399i
Note: Measurements and pricing do not include easily detachable parts, such as add-on or 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 E-520 was launched at a markedly lower price (by 42 percent) than the A77 II, 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 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 Olympus E-520 features a Four Thirds sensor and the Sony A77 II an APS-C sensor. The sensor area in the A77 II is 63 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.0 and 1.5. The sensor in the E-520 has a native 4:3 aspect ratio, while the one in the A77 II offers a 3:2 aspect.

Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors.

Olympus E-520 and Sony A77 II sensor measures

With 24MP, the A77 II offers a higher resolution than the E-520 (10MP), but the A77 II has smaller individual pixels (pixel pitch of 3.91μm versus 4.74μm for the E-520). Yet, the A77 II is a much more recent model (by 5 years and 11 months) than the E-520, and its sensor will 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 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 Olympus E-520 are 18.2 x 13.7 inches or 46.3 x 34.7 cm for good quality, 14.6 x 10.9 inches or 37.1 x 27.8 cm for very good quality, and 12.2 x 9.1 inches or 30.9 x 23.2 cm for excellent quality prints.

The Olympus E-520 has a native sensitivity range from ISO 100 to ISO 1600. 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.

E-520 versus A77 II 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. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar 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.
 
Olympus E-520 Four Thirds 10.0 3648 2736none21.410.454855
2.
 
Sony A77 II APS-C 24.0 6000 40001080/60p23.512.7144277
3.
 
Nikon D7200 APS-C 24.0 6000 40001080/60p24.514.6133387
4.
 
Nikon D7100 APS-C 24.0 6000 40001080/60p24.213.7125683
5.
 
Olympus E-450 Four Thirds 10.0 3648 2736none21.510.551256
6.
 
Olympus E-600 Four Thirds 12.2 4032 3024none21.510.354155
7.
 
Olympus E-620 Four Thirds 12.2 4032 3024none21.310.353655
8.
 
Olympus E-P1 Four Thirds 12.2 4032 3024720/30p21.410.453655
9.
 
Olympus E-P2 Four Thirds 12.2 4032 3024720/30p21.510.450556
10.
 
Olympus E-30 Four Thirds 12.2 4032 3024none21.310.453055
11.
 
Olympus E-420 Four Thirds 10.0 3648 2736none21.510.452756
12.
 
Olympus E-410 Four Thirds 10.0 3648 2736none21.110.049451
13.
 
Olympus E-510 Four Thirds 10.0 3648 2736none21.210.044252
14.
 
Panasonic L10 Four Thirds 10.0 3648 2736none21.310.842955
15.
 
Sony A68 APS-C 24.0 6000 40001080/60i24.113.570179
16.
 
Sony A7 II Full Frame 24.0 6000 40001080/60p24.913.6244990
17.
 
Sony A77 APS-C 24.0 6000 40001080/60p24.013.280178
Note: DXO values in italics represent estimates based on sensor size and age.

Many modern cameras are not only capable of taking still images, but also of capturing video footage. The A77 II indeed provides for movie recording, while the E-520 does not. The highest resolution format that the A77 II can use is 1080/60p.

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), while the E-520 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 II offers a wider field of view (100%) than the one in the E-520 (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the A77 II has a higher magnification (0.73x vs 0.46x), 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 Olympus E-520 and Sony A77 II 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
Specifications
(inch/000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Max
Shutter
Speed *
Max
Shutter
Flaps *
Built-in
Flash
(yes/no)
Built-in
Image
Stab
1.
 
Olympus E-520optical n2.7 / 215 fixed n 1/4000s 3.5/s Y Y
2.
 
Sony A77 II2359 Y3.0 / 1229 full-flex n 1/8000s 12.0/s Y Y
3.
 
Nikon D7200optical Y3.2 / 1229 fixed n 1/8000s 6.0/s Y n
4.
 
Nikon D7100optical Y3.2 / 1229 fixed n 1/8000s 6.0/s Y n
5.
 
Olympus E-450optical n2.7 / 215 fixed n 1/4000s 3.5/s Y n
6.
 
Olympus E-600optical n2.7 / 230 swivel n 1/4000s 4.0/s Y Y
7.
 
Olympus E-620optical n2.7 / 230 swivel n 1/4000s 4.0/s Y Y
8.
 
Olympus E-P1none n3.0 / 230 fixed n 1/4000s 3.0/s n Y
9.
 
Olympus E-P2optional n3.0 / 230 fixed n 1/4000s 3.0/s n Y
10.
 
Olympus E-30optical Y2.7 / 230 swivel n 1/8000s 5.0/s Y Y
11.
 
Olympus E-420optical n2.7 / 215 fixed n 1/4000s 3.5/s Y n
12.
 
Olympus E-410optical n2.5 / 215 fixed n 1/4000s 3.0/s Y n
13.
 
Olympus E-510optical n2.5 / 215 fixed n 1/4000s 3.0/s Y Y
14.
 
Panasonic L10optical n2.5 / 207 swivel n 1/4000s 3.0/s Y n
15.
 
Sony A681440 Y2.7 / 460 tilting n 1/4000s 8.0/s Y Y
16.
 
Sony A7 II2400 n3.0 / 1230 tilting n 1/8000s 5.0/s n Y
17.
 
Sony A772359 Y3.0 / 921 full-flex n 1/8000s 12.0/s Y Y
Notes: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One feature that is present on the A77 II, but is missing on the E-520 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 E-520 does not have a selfie-screen.

The E-520 writes its imaging data to Compact Flash or xD Picture cards, while the A77 II uses SDXC or Memory Stick PRO Duo cards. The E-520 features dual card slots, which can be very useful in case a memory card fails. In contrast, the A77 II 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 Olympus E-520 and Sony Alpha SLT-A77 II 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
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Olympus E-520Y- / ----2.0---
2.
 
Sony A77 IIYstereo / monoY-mini2.0YY-
3.
 
Nikon D7200Ystereo / monoYYmini2.0YY-
4.
 
Nikon D7100Ystereo / monoYYmini2.0---
5.
 
Olympus E-450Y- / ----2.0---
6.
 
Olympus E-600Y- / ----2.0---
7.
 
Olympus E-620Y- / ----2.0---
8.
 
Olympus E-P1Ystereo / ---mini2.0---
9.
 
Olympus E-P2Ystereo / ---mini2.0---
10.
 
Olympus E-30Y- / ----2.0---
11.
 
Olympus E-420Y- / ----2.0---
12.
 
Olympus E-410Y- / ----2.0---
13.
 
Olympus E-510Y- / ----2.0---
14.
 
Panasonic L10Y- / ----2.0---
15.
 
Sony A68Ystereo / monoY-micro2.0---
16.
 
Sony A7 IIYstereo / monoYYmicro2.0YY-
17.
 
Sony A77Ystereo / monoY-mini2.0---

It is notable that the A77 II offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the E-520 does not provide wifi capability.

Studio photographers will appreciate that the Sony A77 II (unlike the E-520) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

The A77 II is a recent model that features in the current product line-up of Sony. In contrast, the E-520 has been discontinued (but can be found pre-owned on eBay). There has not been a direct replacement model for the E-520 from Olympus. 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 is the bottom line? Which of the two cameras – the Olympus E-520 or the Sony A77 II – has the upper hand? Is one clearly better than the other? Below is a summary of the relative strengths of each of the two contestants.

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Advantages of the Olympus E-520:

  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • More compact: Is smaller (136x92mm vs 143x104mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 112g or 17 percent) and hence easier to carry around.
  • Longer lasting: Can take more shots (750 versus 480) on a single battery charge.
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
  • More affordable: Was introduced into a lower priced category (42 percent cheaper at launch).
  • More heavily discounted: Has been available for much longer (launched in May 2008).

ilogo

Reasons to prefer the Sony Alpha SLT-A77 II:

  • More detail: Has more megapixels (24 vs 10MP), which boosts linear resolution by 58%.
  • Better image quality: Is equipped with a larger and more technologically advanced sensor.
  • Richer colors: The sensor size advantage translates into images with better, more accurate colors.
  • More dynamic range: Larger sensor captures a wider spectrum of light and dark details.
  • Better low-light sensitivity: Larger sensor produces good images even in poorly lit environments.
  • Broader imaging potential: Can capture not only stills but also 1080/60p video.
  • 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 0.46x).
  • Easier setting verification: Features a control panel on top to check shooting parameters.
  • Larger screen: Has a bigger rear LCD (3.0" vs 2.7") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (1229k vs 215k 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 1/4000s) to freeze action.
  • Faster burst: Shoots at higher frequency (12 vs 3.5 flaps/sec) to capture the decisive moment.
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
  • 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.
  • Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
  • More modern: Reflects 5 years and 11 months of technical progress since the E-520 launch.

If the count of individual advantages (bullet points above) is taken as a guide, the A77 II is the clear winner of the contest (21 : 7 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.

E-520 07:21 A77 II

How about other alternatives? Do the specifications of the Olympus E-520 and the Sony A77 II 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 technical specifications can provide a useful overview of the capabilities of different cameras, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the E-520 or the A77 II. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.

Expert reviews

This is why expert reviews are important. The following table reports the overall ratings of the cameras as published by some of the major camera review sites (amateurphotographer [AP], cameralabs [CL], digitalcameraworld [DCW], 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 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Olympus E-520..87/100..+ +4.5/54.5/5 May 2008 699i
2.
 
Sony A77 II4/5....80/1004.5/55/5 May 2014 1,199 i
3.
 
Nikon D72004/5+ +..84/1004.5/54.5/5 Mar 2015 1,199i
4.
 
Nikon D71005/5+ +..85/1004.5/54.5/5 Feb 2013 1,199i
5.
 
Olympus E-450........4/54/5 Mar 2009 499i
6.
 
Olympus E-600..........4.5/5 Aug 2009 449i
7.
 
Olympus E-6203/588/100..72/1004.5/55/5 Feb 2009 699i
8.
 
Olympus E-P1..+..66/1004/54.5/5 Jun 2009 799i
9.
 
Olympus E-P23/5+..69/1004/54.5/5 Nov 2009 799i
10.
 
Olympus E-30......71/1004.5/54/5 Nov 2008 1,299i
11.
 
Olympus E-420..85/100..+ +4/54.5/5 Mar 2008 599i
12.
 
Olympus E-410..86/100..+ +4/54.5/5 Mar 2007 699i
13.
 
Olympus E-510..89/100..+ +3.5/54.5/5 Mar 2007 799i
14.
 
Panasonic L10..85/100..+3.5/54/5 Aug 2007 599i
15.
 
Sony A683/5......4/54/5 Nov 2015 699i
16.
 
Sony A7 II5/5+4/582/1004.5/55/5 Nov 2014 1,999i
17.
 
Sony A775/591/100..81/100..5/5 Aug 2011 1,399i
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The above review scores should be interpreted with care, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. Hence, a score should always be seen in the context of the camera's market launch date and its price, and comparisons of ratings among very different cameras or across long time periods have little meaning. Also, please note that some of the review sites have changed their methodology and reporting over time.

Olympus E-520:
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 E-520 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 E-520 Sony A77 II
    Camera Type Digital single lens reflex Digital single lens reflex
    Camera Lens Four Thirds lenses Sony A mount lenses
    Launch Date May 2008 May 2014
    Launch Price USD 699 USD 1,199
    Sensor Specs Olympus E-520 Sony A77 II
    Sensor Technology CMOS CMOS
    Sensor Format Four Thirds Sensor APS-C Sensor
    Sensor Size 17.3 x 13.0 mm 23.5 x 15.6 mm
    Sensor Area 224.9 mm2 366.6 mm2
    Sensor Diagonal 21.6 mm 28.2 mm
    Crop Factor 2.0x 1.5x
    Sensor Resolution 10 Megapixels 24 Megapixels
    Image Resolution 3648 x 2736 pixels 6000 x 4000 pixels
    Pixel Pitch 4.74 μm 3.91 μm
    Pixel Density 4.44 MP/cm2 6.55 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability no Video 1080/60p Video
    ISO Setting 100 - 1,600 ISO 100 - 25,600 ISO
    ISO Boost no Enhancement 50 - 51,200 ISO
    Image Processor TruePic III BIONZ X
    DXO Sensor Quality (score) 55 ..
    DXO Color Depth (bits) 21.4 ..
    DXO Dynamic Range (EV) 10.4 ..
    DXO Low Light (ISO) 548 ..
    Screen Specs Olympus E-520 Sony A77 II
    Viewfinder Type Optical viewfinder Electronic viewfinder
    Viewfinder Field of View 95% 100%
    Viewfinder Magnification 0.46x 0.73x
    Viewfinder Resolution 2359k dots
    Top-Level Screen no Top Display Control Panel
    LCD Framing Live View Live View
    Rear LCD Size 2.7inch 3.0inch
    LCD Resolution 215k dots 1229k dots
    LCD Attachment Fixed screen Fully flexible screen
    Shooting Specs Olympus E-520 Sony A77 II
    Focus System Phase-detect AF Phase-detect AF
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/4000s 1/8000s
    Continuous Shooting 3.5 shutter flaps/s 12 shutter flaps/s
    Image StabilizationIn-body stabilizationIn-body stabilization
    Fill Flash Built-in Flash Built-in Flash
    Storage Medium CF or XD cards MS or SDXC cards
    Second Storage Option Dual card slots Single card slot
    Connectivity Specs Olympus E-520 Sony A77 II
    External Flash Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 2.0
    HDMI Port no HDMI mini HDMI
    Microphone Port no MIC socket External MIC port
    Wifi Support no Wifi Wifi built-in
    Near-Field Communication no NFC NFC built-in
    Body Specs Olympus E-520 Sony A77 II
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type BLM-1 NP-FM500H
    Battery Life (CIPA)750 shots per charge480 shots per charge
    Body Dimensions 136 x 92 x 68 mm
    (5.4 x 3.6 x 2.7 in)
    143 x 104 x 81 mm
    (5.6 x 4.1 x 3.2 in)
    Camera Weight 535 g (18.9 oz) 647 g (22.8 oz)
    Olympus E-520:
    Check Ebay offers
    Sony A77 II:
    Check Amazon price

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