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Olympus E-520 vs Sony A5100

The Olympus E-520 and the Sony Alpha A5100 are two digital cameras that were announced, respectively, in May 2008 and August 2014. The E-520 is a DSLR, while the A5100 is a mirrorless interchangeable lens camera. The cameras are based on a Four Thirds (E-520) and an APS-C (A5100) 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 A5100
Olympus E-520   Sony A5100
Digital single lens reflex Mirrorless system camera
Four Thirds lenses Sony E 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
Optical viewfinder No viewfinder, LCD framing
2.7 LCD, 215k dots 3.0 LCD, 922k dots
Fixed screen (not touch-sensitive) Tilting touchscreen
3.5 shutter flaps per second 6 shutter flaps per second
In-body stabilizationLens stabilization only
750 shots per battery charge400 shots per battery charge
136 x 92 x 68 mm, 535 g 110 x 63 x 36 mm, 283 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Olympus E-520 and the Sony Alpha A5100? Which one should you buy? Read on to find out how these two cameras compare with respect to their body size, their imaging sensors, their shooting features, their input-output connections, and their reception by expert reviewers.

Body comparison

An illustration of the physical size and weight of the Olympus E-520 and the Sony A5100 is provided in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive views from the front, the top, and the rear side are shown. All size dimensions are rounded to the nearest millimeter.

The A5100 can be obtained in two different colors (black, white), while the E-520 is only available in black.

Size Olympus E-520 vs Sony A5100
Compare E-520 versus A5100 top
Comparison E-520 or A5100 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A5100 is considerably smaller (45 percent) than the Olympus E-520. Moreover, the A5100 is substantially lighter (47 percent) than the E-520. In this context, it is worth noting that neither the E-520 nor the A5100 are weather-sealed.

The above size and weight comparisons are to some extent incomplete since they do not consider the interchangeable lenses that both of these cameras require. A larger imaging sensor will tend to go along with bigger and heavier lenses, although exceptions exist. You can compare the optics available for the two cameras in the Four Thirds Lens Catalog (E-520) and the Sony E-Mount Lens Catalog (A5100). Mirrorless cameras, such as the A5100, have moreover the advantage that they can use many lenses from other systems via adapters, as they have a relatively short flange to focal plane distance.

Concerning battery life, the E-520 gets 750 shots out of its BLM-1 battery, while the A5100 can take 400 images on a single charge of its NP-FW50 power pack. The power pack in the A5100 can be charged via the USB port, which can be very convenient when travelling.

The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. In case you want to display and compare another camera duo, you can use the CAM-parator app to select your camera combination among a large number of options.

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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 A5100 110 mm 63 mm 36 mm 283 g 400 n Aug 2014 549 i
3.
 
Olympus E-450 130 mm 91 mm 53 mm 440 g 500 n Mar 2009 499i
4.
 
Olympus E-600 130 mm 94 mm 60 mm 535 g 500 n Aug 2009 449i
5.
 
Olympus E-620 130 mm 94 mm 60 mm 521 g 500 n Feb 2009 699i
6.
 
Olympus E-P1 121 mm 70 mm 36 mm 355 g 300 n Jun 2009 799i
7.
 
Olympus E-P2 121 mm 70 mm 36 mm 355 g 300 n Nov 2009 799i
8.
 
Olympus E-30 142 mm 108 mm 75 mm 701 g 750 n Nov 2008 1,299i
9.
 
Olympus E-420 130 mm 91 mm 53 mm 440 g 500 n Mar 2008 599i
10.
 
Olympus E-410 130 mm 91 mm 53 mm 435 g 500 n Mar 2007 699i
11.
 
Olympus E-510 136 mm 92 mm 68 mm 538 g 750 n Mar 2007 799i
12.
 
Panasonic L10 135 mm 96 mm 78 mm 556 g 450 n Aug 2007 599i
13.
 
Sony A5000 110 mm 63 mm 36 mm 269 g 420 n Jan 2014 449i
14.
 
Sony A6000 120 mm 67 mm 45 mm 344 g 360 n Feb 2014 599i
15.
 
Sony A3000 128 mm 91 mm 85 mm 411 g 470 n Aug 2013 329i
16.
 
Sony NEX-3N 110 mm 62 mm 35 mm 269 g 480 n Feb 2013 499i
17.
 
Sony NEX-3 117 mm 62 mm 33 mm 297 g 330 n May 2010 599i
Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.

Any camera decision will naturally be influenced heavily by the price. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The A5100 was launched at a somewhat lower price (by 21 percent) than the E-520, which makes it more attractive for photographers on a tight budget. 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.

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. 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 are more costly to manufacture and tend to 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 A5100 an APS-C sensor. The sensor area in the A5100 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 A5100 offers a 3:2 aspect.

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

Olympus E-520 and Sony A5100 sensor measures

With 24MP, the A5100 offers a higher resolution than the E-520 (10MP), but the A5100 has smaller individual pixels (pixel pitch of 3.91μm versus 4.74μm for the E-520). Yet, the A5100 is a much more recent model (by 6 years and 3 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 A5100 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A5100 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 A5100 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Olympus E-520 has a native sensitivity range from ISO 100 to ISO 1600. The corresponding ISO settings for the Sony Alpha A5100 are ISO 100 to ISO 25600 (no boost).

E-520 versus A5100 MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. This service is based on lab testing and assigns an overall score to each camera sensor, as well as ratings for dynamic range ("DXO Landscape"), color depth ("DXO Portrait"), and low-light sensitivity ("DXO Sports"). Of the two cameras under consideration, the A5100 offers substantially better image quality than the E-520 (overall score 25 points higher). The advantage is based on 2.4 bits higher color depth, 2.3 EV in additional dynamic range, and 1.3 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.

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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 A5100 APS-C 24.0 6000 40001080/60p23.812.7134780
3.
 
Olympus E-450 Four Thirds 10.0 3648 2736none21.510.551256
4.
 
Olympus E-600 Four Thirds 12.2 4032 3024none21.510.354155
5.
 
Olympus E-620 Four Thirds 12.2 4032 3024none21.310.353655
6.
 
Olympus E-P1 Four Thirds 12.2 4032 3024720/30p21.410.453655
7.
 
Olympus E-P2 Four Thirds 12.2 4032 3024720/30p21.510.450556
8.
 
Olympus E-30 Four Thirds 12.2 4032 3024none21.310.453055
9.
 
Olympus E-420 Four Thirds 10.0 3648 2736none21.510.452756
10.
 
Olympus E-410 Four Thirds 10.0 3648 2736none21.110.049451
11.
 
Olympus E-510 Four Thirds 10.0 3648 2736none21.210.044252
12.
 
Panasonic L10 Four Thirds 10.0 3648 2736none21.310.842955
13.
 
Sony A5000 APS-C 19.8 5456 36321080/60i23.813.0108979
14.
 
Sony A6000 APS-C 24.0 6000 40001080/60p24.113.1134782
15.
 
Sony A3000 APS-C 19.8 5456 36321080/60i23.712.8106878
16.
 
Sony NEX-3N APS-C 16.0 4912 32641080/60i22.812.5106774
17.
 
Sony NEX-3 APS-C 14.0 4592 3056720/30p22.112.083068

Many modern cameras are not only capable of taking still images, but also of capturing video footage. The A5100 indeed provides for movie recording, while the E-520 does not. The highest resolution format that the A5100 can use is 1080/60p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the E-520 has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the A5100 relies on live view and the rear LCD for framing. The table below summarizes some of the other core capabilities of the Olympus E-520 and Sony A5100 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)
Mech
Shutter
Speed
Shutter
Flaps
(1/sec)
Built-in
Flash
(yes/no)
Built-in
Image
Stab
1.
 
Olympus E-520optical n2.7 / 215 fixed n 1/4000s 3.5 Y Y
2.
 
Sony A5100none n3.0 / 922 tilting Y 1/4000s 6.0 Y n
3.
 
Olympus E-450optical n2.7 / 215 fixed n 1/4000s 3.5 Y n
4.
 
Olympus E-600optical n2.7 / 230 swivel n 1/4000s 4.0 Y Y
5.
 
Olympus E-620optical n2.7 / 230 swivel n 1/4000s 4.0 Y Y
6.
 
Olympus E-P1none n3.0 / 230 fixed n 1/4000s 3.0 n Y
7.
 
Olympus E-P2optional n3.0 / 230 fixed n 1/4000s 3.0 n Y
8.
 
Olympus E-30optical Y2.7 / 230 swivel n 1/8000s 5.0 Y Y
9.
 
Olympus E-420optical n2.7 / 215 fixed n 1/4000s 3.5 Y n
10.
 
Olympus E-410optical n2.5 / 215 fixed n 1/4000s 3.0 Y n
11.
 
Olympus E-510optical n2.5 / 215 fixed n 1/4000s 3.0 Y Y
12.
 
Panasonic L10optical n2.5 / 207 swivel n 1/4000s 3.0 Y n
13.
 
Sony A5000none n3.0 / 461 tilting n 1/4000s 3.5 Y n
14.
 
Sony A60001440 n3.0 / 922 tilting n 1/4000s 11.0 Y n
15.
 
Sony A3000202 n3.0 / 230 fixed n 1/4000s 2.5 Y n
16.
 
Sony NEX-3Noptional n3.0 / 460 tilting n 1/4000s 4.0 Y n
17.
 
Sony NEX-3optional n3.0 / 920 tilting n 1/4000s 7.0 n n

One feature that differentiates the E-520 and the A5100 is in-body image stabilization (IBIS). The E-520 reduces the risk of handshake-induced blur with all attached lenses, while the A5100 offers no blur reduction with lenses that themselves do not provide optical image stabilization.

The A5100 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 A5100 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 A5100 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 A5100 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 A5100-stereo / mono--micro2.0YY-
3.
 
Olympus E-450Y- / ----2.0---
4.
 
Olympus E-600Y- / ----2.0---
5.
 
Olympus E-620Y- / ----2.0---
6.
 
Olympus E-P1Ystereo / ---mini2.0---
7.
 
Olympus E-P2Ystereo / ---mini2.0---
8.
 
Olympus E-30Y- / ----2.0---
9.
 
Olympus E-420Y- / ----2.0---
10.
 
Olympus E-410Y- / ----2.0---
11.
 
Olympus E-510Y- / ----2.0---
12.
 
Panasonic L10Y- / ----2.0---
13.
 
Sony A5000-stereo / mono--micro2.0YY-
14.
 
Sony A6000Ystereo / mono--micro2.0YY-
15.
 
Sony A3000Ystereo / mono--mini2.0---
16.
 
Sony NEX-3N-stereo / mono--micro2.0---
17.
 
Sony NEX-3Ystereo / mono--mini2.0---

It is notable that the E-520 has a hotshoe, while the A5100 does not. This socket makes it possible to easily attach optional accessories, such as an external flash gun.

The A5100 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 how do things add up? Is the Olympus E-520 better than the Sony A5100 or vice versa? The listing below highlights the relative strengths of the two models.

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Advantages of the Olympus E-520:

  • Easier framing: Has an optical viewfinder for image composition and settings control.
  • Longer lasting: Can take more shots (750 versus 400) on a single battery charge.
  • Sharper images: Has hand-shake reducing image stabilization built-in.
  • Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
  • More heavily discounted: Has been available for much longer (launched in May 2008).

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Reasons to prefer the Sony Alpha A5100:

  • More detail: Has more megapixels (24 vs 10MP), which boosts linear resolution by 58%.
  • Better image quality: Scores substantially higher (25 points) in the DXO overall evaluation.
  • Richer colors: Generates noticeably more natural colors (2.4 bits more color depth).
  • More dynamic range: Captures a broader range of light and dark details (2.3 EV of extra DR).
  • Better low-light sensitivity: Can shoot in dim conditions (1.3 stops ISO advantage).
  • Broader imaging potential: Can capture not only stills but also 1080/60p video.
  • Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
  • 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 (922k vs 215k dots).
  • More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
  • Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • Faster burst: Shoots at higher frequency (6 vs 3.5 flaps/sec) to capture the decisive moment.
  • More compact: Is smaller (110x63mm vs 136x92mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 252g or 47 percent) and is thus easier to take along.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • More legacy lens friendly: Can use many non-native lenses via adapters.
  • Easier 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.
  • More affordable: Was released into a lower priced segment (21 percent cheaper at launch).
  • More modern: Reflects 6 years and 3 months of technical progress since the E-520 launch.

If the count of individual advantages (bullet points above) is taken as a guide, the A5100 is the clear winner of the contest (21 : 6 points). However, the relevance of individual strengths will vary across photographers, so that you might want to apply your own weighing scheme to the summary points when reflecting and deciding on a new camera. A professional wildlife photographer will view the differences between cameras in a way that diverges from the perspective of a family photog, and a person interested in architecture has distinct needs from a sports shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

E-520 06:21 A5100

How about other alternatives? Do the specifications of the Olympus E-520 and the Sony A5100 place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Mirrorless Interchangeable Lens Camera listings whether the two cameras rank among the cream of the crop.

In any case, while the specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the E-520 or the A5100. 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 expert reviews are important. The table below provides a synthesis of the camera assessments of some of the best known photo-gear 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 A51004.5/5+....4.5/55/5 Aug 2014 549 i
3.
 
Olympus E-450........4/54/5 Mar 2009 499i
4.
 
Olympus E-600..........4.5/5 Aug 2009 449i
5.
 
Olympus E-6203/588/100..72/1004.5/55/5 Feb 2009 699i
6.
 
Olympus E-P1..+..66/1004/54.5/5 Jun 2009 799i
7.
 
Olympus E-P23/5+..69/1004/54.5/5 Nov 2009 799i
8.
 
Olympus E-30......71/1004.5/54/5 Nov 2008 1,299i
9.
 
Olympus E-420..85/100..+ +4/54.5/5 Mar 2008 599i
10.
 
Olympus E-410..86/100..+ +4/54.5/5 Mar 2007 699i
11.
 
Olympus E-510..89/100..+ +3.5/54.5/5 Mar 2007 799i
12.
 
Panasonic L10..85/100..+3.5/54/5 Aug 2007 599i
13.
 
Sony A50003/5+....4.5/54.5/5 Jan 2014 449i
14.
 
Sony A60005/5+4.5/580/1004.5/55/5 Feb 2014 599i
15.
 
Sony A30003/5+....4/54/5 Aug 2013 329i
16.
 
Sony NEX-3N3/5......4.5/54.5/5 Feb 2013 499i
17.
 
Sony NEX-3......70/1004.5/54/5 May 2010 599i
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The review scores listed above should be treated with care, though. The assessments were made in relation to similar cameras of the same technological generation. 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. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

Olympus E-520:
Check Ebay offers
Sony A5100:
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 your choice using the following search menu. 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: Olympus E-520 vs Sony A5100

    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 A5100
    Camera Type Digital single lens reflex Mirrorless system camera
    Camera Lens Four Thirds lenses Sony E mount lenses
    Launch Date May 2008 August 2014
    Launch Price USD 699 USD 549
    Sensor Specs Olympus E-520 Sony A5100
    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
    Image Processor TruePic III BIONZ X
    DXO Sensor Quality (score) 55 80
    DXO Color Depth (bits) 21.4 23.8
    DXO Dynamic Range (EV) 10.4 12.7
    DXO Low Light (ISO) 548 1347
    Screen Specs Olympus E-520 Sony A5100
    Viewfinder Type Optical viewfinder no viewfinder
    Viewfinder Field of View 95%
    Viewfinder Magnification 0.46x
    LCD Framing Live View Live View
    Rear LCD Size 2.7inch 3.0inch
    LCD Resolution 215k dots 922k dots
    LCD Attachment Fixed screen Tilting screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Olympus E-520 Sony A5100
    Focus System Phase-detect AF On-Sensor Phase-detect
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/4000s 1/4000s
    Continuous Shooting 3.5 shutter flaps/s 6 shutter flaps/s
    Image StabilizationIn-body stabilizationLens stabilization only
    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 A5100
    External Flash Hotshoe no Hotshoe
    USB Connector USB 2.0 USB 2.0
    HDMI Port no HDMI micro HDMI
    Wifi Support no Wifi Wifi built-in
    Near-Field Communication no NFC NFC built-in
    Body Specs Olympus E-520 Sony A5100
    Battery Type BLM-1 NP-FW50
    Battery Life (CIPA)750 shots per charge400 shots per charge
    In-Camera Charging no USB charging USB charging
    Body Dimensions 136 x 92 x 68 mm
    (5.4 x 3.6 x 2.7 in)
    110 x 63 x 36 mm
    (4.3 x 2.5 x 1.4 in)
    Camera Weight 535 g (18.9 oz) 283 g (10.0 oz)

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