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Olympus E-1 vs Sony A77 II

The Olympus E-1 and the Sony Alpha SLT-A77 II are two digital cameras that were revealed to the public, respectively, in June 2003 and May 2014. Both are DSLR (Digital Single Lens Reflex) cameras that are based on a Four Thirds (E-1) and an APS-C (A77 II) sensor. The Olympus has a resolution of 4.9 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 E-1
versus
Sony A77 II
Olympus E-1   Sony A77 II
Digital single lens reflex Digital single lens reflex
Four Thirds lenses Sony A mount lenses
4.9 MP, Four Thirds Sensor 24 MP, APS-C Sensor
no Video 1080/60p Video
ISO 100-800 (100 - 3,200) ISO 100-25,600 (50 - 51,200)
Optical viewfinder Electronic viewfinder (2359k dots)
1.8 LCD, 134k dots 3.0 LCD, 1229k dots
Fixed screen (not touch-sensitive) Fully flexible screen (no touchscreen)
3 shutter flaps per second 12 shutter flaps per second
Lens stabilization onlyIn-body stabilization
Weathersealed bodyWeathersealed body
750 shots per battery charge480 shots per battery charge
141 x 104 x 81 mm, 738 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 E-1 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

An illustration of the physical size and weight of the Olympus E-1 and the Sony A77 II is provided 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 Olympus E-1 vs Sony A77 II
Compare E-1 versus A77 II top
Comparison E-1 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 somewhat larger (1 percent) than the Olympus E-1. However, the A77 II is markedly lighter (12 percent) than the E-1. In this context, it is worth noting that both cameras are splash and dust-proof and can, hence, be used in inclement weather conditions or harsh environments.

The above size and weight comparisons are to some extent incomplete since they do not consider the interchangeable lenses that both of these cameras require. Hence, you might want to study and compare the specifications of available lenses in order to get the full picture of the size and weight of the two camera systems.

Concerning battery life, the E-1 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. 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-1 141 mm 104 mm 81 mm 738 g 750 Y Jun 2003 1,699 i
2.
 
Sony A77 II 143 mm 104 mm 81 mm 647 g 480 Y May 2014 1,199 i
3.
 
Canon 6D Mark II 144 mm 111 mm 75 mm 765 g 1200 Y Jun 2017 1,999 i
4.
 
Canon 7D 148 mm 111 mm 74 mm 860 g 800 Y Sep 2009 1,699 i
5.
 
Leica Digilux 3 146 mm 87 mm 77 mm 606 g 750 n Sep 2006 1,499 i
6.
 
Nikon D500 147 mm 115 mm 81 mm 860 g 1240 Y Jan 2016 1,999 i
7.
 
Nikon D7200 136 mm 107 mm 76 mm 765 g 1110 Y Mar 2015 1,199 i
8.
 
Nikon D7100 136 mm 107 mm 76 mm 765 g 950 Y Feb 2013 1,199 i
9.
 
Nikon D610 141 mm 113 mm 82 mm 850 g 900 Y Oct 2013 1,999 i
10.
 
Nikon D7000 132 mm 105 mm 77 mm 780 g 1050 Y Sep 2010 1,499 i
11.
 
Olympus E-5 142 mm 117 mm 75 mm 873 g 750 Y Sep 2010 1,699 i
12.
 
Olympus E-3 142 mm 116 mm 75 mm 876 g 750 Y Oct 2007 1,699 i
13.
 
Olympus E-330 140 mm 87 mm 72 mm 637 g 750 n Jan 2006 999 i
14.
 
Olympus E-300 147 mm 85 mm 64 mm 624 g 750 n Sep 2004 799 i
15.
 
Sony A68 143 mm 104 mm 81 mm 610 g 540 n Nov 2015 699 i
16.
 
Sony A7 II 127 mm 96 mm 60 mm 599 g 350 Y Nov 2014 1,999 i
17.
 
Sony A77 143 mm 104 mm 81 mm 732 g 470 Y Aug 2011 1,399 i
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 A77 II was launched at a markedly lower price (by 29 percent) than the E-1, 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 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. 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.

Of the two cameras under consideration, the Olympus E-1 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-1 has a native 4:3 aspect ratio, while the one in the A77 II offers a 3:2 aspect.

Olympus E-1 and Sony A77 II sensor measures

With 24MP, the A77 II offers a higher resolution than the E-1 (4.9MP), but the A77 II has smaller individual pixels (pixel pitch of 3.91μm versus 6.78μm for the E-1). Yet, the A77 II is a much more recent model (by 10 years and 10 months) than the E-1, 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-1 are 12.8 x 9.6 inches or 32.5 x 24.4 cm for good quality, 10.2 x 7.7 inches or 26 x 19.5 cm for very good quality, and 8.5 x 6.4 inches or 21.7 x 16.3 cm for excellent quality prints.

The Olympus E-1 has a native sensitivity range from ISO 100 to ISO 800, which can be extended to ISO 100-3200. 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-1 versus A77 II MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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 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.
 
Olympus E-1 Four Thirds 4.9 2560 1920none...... ..
2.
 
Sony A77 II APS-C 24.0 6000 40001080/60p...... ..
3.
 
Canon 6D Mark II Full Frame 26.0 6240 41601080/60p24.411.92862 85
4.
 
Canon 7D APS-C 17.9 5184 34561080/30p22.011.7854 66
5.
 
Leica Digilux 3 Four Thirds 7.4 3136 2352none...... ..
6.
 
Nikon D500 APS-C 20.7 5568 37124K/30p24.014.01324 83
7.
 
Nikon D7200 APS-C 24.0 6000 40001080/60p24.514.61333 87
8.
 
Nikon D7100 APS-C 24.0 6000 40001080/60p24.213.71256 83
9.
 
Nikon D610 Full Frame 24.2 6016 40161080/30p25.114.42925 94
10.
 
Nikon D7000 APS-C 16.1 4928 326410800/24p23.513.91167 80
11.
 
Olympus E-5 Four Thirds 12.2 4032 3024720/30p21.610.5519 56
12.
 
Olympus E-3 Four Thirds 10.0 3648 2736none21.610.5571 56
13.
 
Olympus E-330 Four Thirds 7.4 3136 2352none...... ..
14.
 
Olympus E-300 Four Thirds 8.0 3264 2448none...... ..
15.
 
Sony A68 APS-C 24.0 6000 40001080/60i24.113.5701 79
16.
 
Sony A7 II Full Frame 24.0 6000 40001080/60p24.913.62449 90
17.
 
Sony A77 APS-C 24.0 6000 40001080/60p24.013.2801 78

Many modern cameras are not only capable of taking still images, but can also record movies. The A77 II indeed provides for movie recording, while the E-1 does not. The highest resolution format that the A77 II can use is 1080/60p.

Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. For example, the A77 II has an electronic viewfinder (2359k dots), while the E-1 has an optical one. Both systems have their advantages, with the electronic viewfinder making it possible to project supplementary shooting information into the framing view, whereas the optical viewfinder offers lag-free viewing and a very clear framing image. The viewfinders of both cameras offer the same field of view (100%), but the viewfinder of the A77 II has a higher magnification than the one of the E-1 (0.73x vs 0.48x), 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-1 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
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.
 
Olympus E-1optical Y 1.8 134 fixed n 1/4000s 3.0 n n
2.
 
Sony A77 II2359 Y 3.0 1229 full-flex n 1/8000s 12.0 Y Y
3.
 
Canon 6D Mark IIoptical Y 3.0 1040 swivel Y 1/4000s 6.5 n n
4.
 
Canon 7Doptical Y 3.0 920 fixed n 1/8000s 8.0 Y n
5.
 
Leica Digilux 3optical n 2.5 207 fixed n 1/4000s 3.0 Y n
6.
 
Nikon D500optical Y 3.2 2359 tilting Y 1/8000s 10.0 n n
7.
 
Nikon D7200optical Y 3.2 1229 fixed n 1/8000s 6.0 Y n
8.
 
Nikon D7100optical Y 3.2 1229 fixed n 1/8000s 6.0 Y n
9.
 
Nikon D610optical Y 3.2 921 fixed n 1/4000s 6.0 Y n
10.
 
Nikon D7000optical Y 3.0 921 fixed n 1/8000s 6.0 Y n
11.
 
Olympus E-5optical Y 3.0 920 swivel n 1/8000s 5.0 Y Y
12.
 
Olympus E-3optical Y 2.5 230 swivel n 1/8000s 5.0 Y Y
13.
 
Olympus E-330optical n 2.5 215 tilting n 1/4000s 3.0 Y n
14.
 
Olympus E-300optical n 1.8 134 fixed n 1/4000s 2.5 Y n
15.
 
Sony A681440 Y 2.7 460 tilting n 1/4000s 8.0 Y Y
16.
 
Sony A7 II2400 n 3.0 1230 tilting n 1/8000s 5.0 n Y
17.
 
Sony A772359 Y 3.0 921 full-flex n 1/8000s 12.0 Y Y

One feature that differentiates the A77 II and the E-1 is in-body image stabilization (IBIS). The A77 II reduces the risk of handshake-induced blur with all attached lenses, while the E-1 offers no blur reduction with lenses that themselves do not provide optical image stabilization.

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-1 does not have a selfie-screen.

The E-1 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-1 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-1 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
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Olympus E-1Y-----2.0---
2.
 
Sony A77 IIYstereomonoY-mini2.0YY-
3.
 
Canon 6D Mark IIYstereomonoY-mini2.0YYY
4.
 
Canon 7DYmono-Y-mini2.0---
5.
 
Leica Digilux 3Ystereomono---2.0---
6.
 
Nikon D500YstereomonoYYmini3.0YYY
7.
 
Nikon D7200YstereomonoYYmini2.0YY-
8.
 
Nikon D7100YstereomonoYYmini2.0---
9.
 
Nikon D610YmonomonoYYmini2.0---
10.
 
Nikon D7000YmonomonoY-mini2.0---
11.
 
Olympus E-5Ystereo---mini2.0---
12.
 
Olympus E-3Y-----2.0---
13.
 
Olympus E-330Y-----2.0---
14.
 
Olympus E-300Y-----2.0---
15.
 
Sony A68YstereomonoY-micro2.0---
16.
 
Sony A7 IIYstereomonoYYmicro2.0YY-
17.
 
Sony A77YstereomonoY-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-1 does not provide wifi capability.

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

The A77 II is a recent model that features in the current product line-up of Sony. In contrast, the E-1 has been discontinued (but can be found pre-owned on eBay). As a replacement in the same line of cameras, the E-1 was succeeded by the Olympus E-3. 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 there a clear favorite between the Olympus E-1 and the Sony A77 II? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.

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Advantages of the Olympus E-1:

  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • 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 heavily discounted: Has been available for much longer (launched in June 2003).

ilogo

Reasons to prefer the Sony Alpha SLT-A77 II:

  • More detail: Has more megapixels (24 vs 4.9MP), which boosts linear resolution by 125%.
  • 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.
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.73x vs 0.48x).
  • Larger screen: Has a bigger rear LCD (3.0" vs 1.8") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (1229k vs 134k 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 flaps/sec) to capture the decisive moment.
  • Less heavy: Has a lower weight (by 91g or 12 percent) and is thus easier to take along.
  • Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
  • Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
  • Easier 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 introduced into a lower priced category (29 percent cheaper at launch).
  • More modern: Reflects 10 years and 10 months of technical progress since the E-1 launch.

If the count of relative strengths (bullet points above) is taken as a measure, the A77 II is the clear winner of the contest (21 : 4 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 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-1 04:21 A77 II

How about other alternatives? Do the specifications of the Olympus E-1 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 says little about, for example, the shooting experience and imaging performance of the E-1 and the A77 II in practical situations. 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 where reviews by experts come in. The following table reports the overall ratings of the cameras as published by some of the major 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.
 
Olympus E-1....+o.. Jun 2003 1,699 i
2.
 
Sony A77 II4/5..80/1004.5/55/5 May 2014 1,199 i
3.
 
Canon 6D Mark II4/5+80/1004.5/54/5 Jun 2017 1,999 i
4.
 
Canon 7D5/5+ +84/1004.5/54.5/5 Sep 2009 1,699 i
5.
 
Leica Digilux 3.......... Sep 2006 1,499 i
6.
 
Nikon D5005/5+ +91/1004.5/55/5 Jan 2016 1,999 i
7.
 
Nikon D72004/5+ +84/1004.5/54.5/5 Mar 2015 1,199 i
8.
 
Nikon D71005/5+ +85/1004.5/54.5/5 Feb 2013 1,199 i
9.
 
Nikon D6104/5+ +87/1004.5/54.5/5 Oct 2013 1,999 i
10.
 
Nikon D70004/5..80/1004.5/54.5/5 Sep 2010 1,499 i
11.
 
Olympus E-54/5..75/1004/54.5/5 Sep 2010 1,699 i
12.
 
Olympus E-3..88/100+ +o4/5 Oct 2007 1,699 i
13.
 
Olympus E-330....+o.. Jan 2006 999 i
14.
 
Olympus E-300....+o4.5/5 Sep 2004 799 i
15.
 
Sony A683/5....4/54/5 Nov 2015 699 i
16.
 
Sony A7 II5/5+82/1004.5/55/5 Nov 2014 1,999 i
17.
 
Sony A775/591/10081/100..5/5 Aug 2011 1,399 i
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The above review scores should be interpreted with care, though. The assessments were made in relation to similar cameras of the same technological generation. 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. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

Olympus E-1:
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 would like to check on the differences and similarities of other camera models, just make your choice using the following search menu. 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-1 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-1 Sony A77 II
    Camera Type Digital single lens reflex Digital single lens reflex
    Camera Lens Four Thirds lenses Sony A mount lenses
    Launch Date June 2003 May 2014
    Launch Price USD 1,699 USD 1,199
    Sensor Specs Olympus E-1 Sony A77 II
    Sensor Technology CCD 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 4.9 Megapixels 24 Megapixels
    Image Resolution 2560 x 1920 pixels 6000 x 4000 pixels
    Pixel Pitch 6.78 μm 3.91 μm
    Pixel Density 2.19 MP/cm2 6.55 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability no Video 1080/60p Video
    ISO Setting 100 - 800 ISO 100 - 25,600 ISO
    ISO Boost 100 - 3,200 ISO 50 - 51,200 ISO
    Image Processor TruePic BIONZ X
    Screen Specs Olympus E-1 Sony A77 II
    Viewfinder Type Optical viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.48x 0.73x
    Viewfinder Resolution 2359k dots
    Top-Level Screen Control Panel Control Panel
    LCD Framing Live View
    Rear LCD Size 1.8inch 3.0inch
    LCD Resolution 134k dots 1229k dots
    LCD Attachment Fixed screen Fully flexible screen
    Shooting Specs Olympus E-1 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 shutter flaps/s 12 shutter flaps/s
    Shutter Life Expectancy150 000 actuations150 000 actuations
    Image StabilizationLens stabilization onlyIn-body stabilization
    Fill Flash no On-Board 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-1 Sony A77 II
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket 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-1 Sony A77 II
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type BLM-1 NP-FM500H
    Battery Life (CIPA)750 shots per charge480 shots per charge
    Body Dimensions 141 x 104 x 81 mm
    (5.6 x 4.1 x 3.2 in)
    143 x 104 x 81 mm
    (5.6 x 4.1 x 3.2 in)
    Camera Weight 738 g (26.0 oz) 647 g (22.8 oz)

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