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Olympus E-1 versus 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 megapixel, whereas the Sony provides 24 MP. Read on to find out how these two cameras compare with respect to their size, their sensors, their features, and their reception by expert reviewers.

Body comparison: Olympus E-1 vs Sony A77 II

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. If you prefer, you can also use the toggle button to switch to a comparison in percentage terms (in this case, the camera on the left side – the E-1 – represents the basis for the calculations across all the size and weight measures).

Compare Olympus E-1 vs Sony A77 II
Compare E-1 versus A77 II top
Compare E-1 and 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 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, 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)
Used
Price
(USD)
Camera
Model
Olympus E-1» 5.6 in 4.1 in 3.2 in 26.0 oz 750 Y Jun 2003 1,699- i Olympus E-1
Sony A77 II« 5.6 in 4.1 in 3.2 in 22.8 oz 480 Y May 2014 1,199 i i Sony A77 II
Canon 6D Mark II« » 5.7 in 4.4 in 3.0 in 27.0 oz 1200 Y Jun 2017 1,999 i i Canon 6D Mark II
Canon 7D« » 5.8 in 4.4 in 2.9 in 30.3 oz 800 Y Sep 2009 1,699- i Canon 7D
Leica Digilux 3« » 5.7 in 3.4 in 3.0 in 21.4 oz 750 n Sep 2006 1,499- i Leica Digilux 3
Nikon D500« » 5.8 in 4.5 in 3.2 in 30.3 oz 1240 Y Jan 2016 1,999 i i Nikon D500
Nikon D7100« » 5.4 in 4.2 in 3.0 in 27.0 oz 950 Y Feb 2013 1,199- i Nikon D7100
Nikon D610« » 5.6 in 4.4 in 3.2 in 30.0 oz 900 Y Oct 2013 1,999 i i Nikon D610
Nikon D7000« » 5.2 in 4.1 in 3.0 in 27.5 oz 1050 Y Sep 2010 1,499- i Nikon D7000
Olympus E-5« » 5.6 in 4.6 in 3.0 in 30.8 oz 750 Y Sep 2010 1,699- i Olympus E-5
Olympus E-3« » 5.6 in 4.6 in 3.0 in 30.9 oz 750 Y Oct 2007 1,699- i Olympus E-3
Olympus E-330« » 5.5 in 3.4 in 2.8 in 22.5 oz 750 n Jan 2006 999- i Olympus E-330
Olympus E-300« » 5.8 in 3.3 in 2.5 in 22.0 oz 750 n Sep 2004 799- i Olympus E-300
Pentax K-3« » 5.2 in 3.9 in 3.0 in 28.2 oz 560 Y Oct 2013 1,299- i Pentax K-3
Sony A6500« » 4.7 in 2.6 in 2.1 in 16.0 oz 350 Y Oct 2016 1,399 i i Sony A6500
Sony A7 II« » 5.0 in 3.8 in 2.4 in 21.1 oz 350 Y Nov 2014 1,999- i Sony A7 II
Sony A77« » 5.6 in 4.1 in 3.2 in 25.8 oz 470 Y Aug 2011 1,999- i Sony A77

The camera’s price is obviously a critical decision-making factor. 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: Olympus E-1 vs Sony A77 II

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.

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.

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 E-1» Four Thirds 4.9 2560 1920-----Olympus E-1
Sony A77 II« APS-C 24.0 6000 40001080/60p----Sony A77 II
Canon 6D Mark II« » Full Frame 26.0 6240 41601080/60p24.411.9286285Canon 6D Mark II
Canon 7D« » APS-C 17.9 5184 34561080/30p22.011.785466Canon 7D
Leica Digilux 3« » Four Thirds 7.4 3136 2352-----Leica Digilux 3
Nikon D500« » APS-C 20.7 5568 37124K/30p24.014.0132483Nikon D500
Nikon D7100« » APS-C 24.0 6000 40001080/60p24.213.7125683Nikon D7100
Nikon D610« » Full Frame 24.2 6016 40161080/30p25.114.4292594Nikon D610
Nikon D7000« » APS-C 16.1 4928 326410800/24p23.513.9116780Nikon D7000
Olympus E-5« » Four Thirds 12.2 4032 3024720/30p21.610.551956Olympus E-5
Olympus E-3« » Four Thirds 10.0 3648 2736-21.610.557156Olympus E-3
Olympus E-330« » Four Thirds 7.4 3136 2352-----Olympus E-330
Olympus E-300« » Four Thirds 8.0 3264 2448-----Olympus E-300
Pentax K-3« » APS-C 24.1 6016 40001080/60i23.713.4121680Pentax K-3
Sony A6500« » APS-C 24.0 6000 40004K/30p24.513.7140585Sony A6500
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. 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: Olympus E-1 vs Sony A77 II

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 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. If needed, the dpreview camera hub, for example, contains further detail on the cameras' specs.

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)
Shutter
speed
(1/sec)
Shutter
flaps
(1/sec)
Build-in
Flash
(yes/no)
Build-in
Image
Stab
Camera
Model
Olympus E-1»optical Y 1.8 134 fixed n 4000 3.0 n n Olympus E-1
Sony A77 II«2359 Y 3.0 1229 full-flex n 8000 12.0 Y Y Sony A77 II
Canon 6D Mark II« »optical Y 3.0 1040 swivel Y 4000 6.5 n n Canon 6D Mark II
Canon 7D« »optical Y 3.0 920 fixed n 8000 8.0 Y n Canon 7D
Leica Digilux 3« »optical n 2.5 207 fixed n 4000 3.0 Y n Leica Digilux 3
Nikon D500« »optical Y 3.2 2359 tilting Y 8000 10.0 n n Nikon D500
Nikon D7100« »optical Y 3.2 1229 fixed n 8000 6.0 Y n Nikon D7100
Nikon D610« »optical Y 3.2 921 fixed n 4000 6.0 Y n Nikon D610
Nikon D7000« »optical Y 3.0 921 fixed n 8000 6.0 Y n Nikon D7000
Olympus E-5« »optical Y 3.0 920 swivel n 8000 5.0 Y Y Olympus E-5
Olympus E-3« »optical Y 2.5 230 swivel n 8000 5.0 Y Y Olympus E-3
Olympus E-330« »optical n 2.5 215 tilting n 4000 3.0 Y n Olympus E-330
Olympus E-300« »optical n 1.8 134 fixed n 4000 2.5 Y n Olympus E-300
Pentax K-3« »optical Y 3.2 1037 fixed n 8000 8.3 Y Y Pentax K-3
Sony A6500« »2300 n 3.0 922 tilting Y 4000 11.0 Y Y Sony A6500
Sony A7 II« »2400 n 3.0 1230 tilting n 8000 5.0 n Y Sony A7 II
Sony A77« »2359 Y 3.0 921 full-flex n 8000 12.0 Y Y Sony A77

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 has to rely on optical image stabilization in OIS-equipped lenses to achieve the same effect.

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.

Input-Output Connections
  Camera
Model
Hotshoe
Port
Internal
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Type
WiFi
Support
NFC
Support
Bluetooth
Support
Camera
Model
Olympus E-1»Y-----2.0---Olympus E-1
Sony A77 II«YstereomonoY-mini2.0YY-Sony A77 II
Canon 6D Mark II« »YstereomonoY-mini2.0YYYCanon 6D Mark II
Canon 7D« »Ymono-Y-mini2.0---Canon 7D
Leica Digilux 3« »Ystereomono---2.0---Leica Digilux 3
Nikon D500« »YstereomonoYYmini3.0YYYNikon D500
Nikon D7100« »YstereomonoYYmini2.0---Nikon D7100
Nikon D610« »YmonomonoYYmini2.0---Nikon D610
Nikon D7000« »YmonomonoY-mini2.0---Nikon D7000
Olympus E-5« »Ystereo---mini2.0---Olympus E-5
Olympus E-3« »Y-----2.0---Olympus E-3
Olympus E-330« »Y-----2.0---Olympus E-330
Olympus E-300« »Y-----2.0---Olympus E-300
Pentax K-3« »YmonomonoYYmini3.0---Pentax K-3
Sony A6500« »YstereomonoY-micro2.0YY-Sony A6500
Sony A7 II« »YstereomonoYYmicro2.0YY-Sony A7 II
Sony A77« »YstereomonoY-mini2.0---Sony A77

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 it 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.

Review summary: Olympus E-1 vs Sony A77 II

So how do things add up? Is there a clear favorite between the Olympus E-1 and the Sony A77 II? 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).

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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: Larger sensor generates images with better, more accurate colors.
  • More dynamic range: Capable of capturing a wider spectrum of light and dark details.
  • Better low-light sensitivity: Can be used in poorly lit environments and still produce good images.
  • 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 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 full-flex screen for odd-angle shots in portrait or landscape orientation.
  • Faster shutter: Has higher mechanical shutter speed (8000/sec vs 4000/sec) 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 build-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 build 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 (19 : 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.

E-1 04:19 A77 II

In any case, while the comparison of technical specifications can provide a useful overview of the capabilities of different cameras, it says nothing about, for example, the handling, responsiveness, and overall imaging quality 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. This is where reviews by experts come in. The following table reports the overall rankings of the cameras as published by some of the major camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, photographyblog). The detailed reviews can be accessed by clicking on the site logo in the table header.

Review Scores
  Camera
Model
cameralabs dpreview ephotozine imaging-resource photographyblog Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
Olympus E-1»-Recrevrev- Jun 2003 1,699- i Olympus E-1
Sony A77 II«-80/1004.5/54/55/5 May 2014 1,199 i i Sony A77 II
Canon 6D Mark II« »Rec80/1004.5/54/54/5 Jun 2017 1,999 i i Canon 6D Mark II
Canon 7D« »HiRec84/1004.5/55/54.5/5 Sep 2009 1,699- i Canon 7D
Leica Digilux 3« »----- Sep 2006 1,499- i Leica Digilux 3
Nikon D500« »HiRec91/1004.5/55/55/5 Jan 2016 1,999 i i Nikon D500
Nikon D7100« »HiRec85/1004.5/55/54.5/5 Feb 2013 1,199- i Nikon D7100
Nikon D610« »HiRec87/1004.5/54.5/54.5/5 Oct 2013 1,999 i i Nikon D610
Nikon D7000« »-80/1004.5/55/54.5/5 Sep 2010 1,499- i Nikon D7000
Olympus E-5« »-75/1004/5-4.5/5 Sep 2010 1,699- i Olympus E-5
Olympus E-3« »88/100HiRecrevrev4/5 Oct 2007 1,699- i Olympus E-3
Olympus E-330« »-Recrev3.5/5- Jan 2006 999- i Olympus E-330
Olympus E-300« »-Recrevrev4.5/5 Sep 2004 799- i Olympus E-300
Pentax K-3« »-83/1005/54.5/55/5 Oct 2013 1,299- i Pentax K-3
Sony A6500« »HiRec85/1004.5/55/54.5/5 Oct 2016 1,399 i i Sony A6500
Sony A7 II« »Rec82/1004.5/55/55/5 Nov 2014 1,999- i Sony A7 II
Sony A77« »91/10081/100-4.5/55/5 Aug 2011 1,999- i Sony A77

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.

 

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. If the camera you are interested in is not available, please contact me, and I will try to add information on that model to the database.

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