Olympus E-1 versus Sony A7S
The Olympus E-1 and the Sony Alpha A7S are two professional cameras that were officially introduced, respectively, in June 2003 and April 2014. The E-1 is a DSLR, while the A7S is a mirrorless interchangeable lens camera. The cameras are based on a Four Thirds (E-1) and a full frame sensor. The Olympus has a resolution of 4.9 megapixel, whereas the Sony provides 12 MP.
The side-by-side display below illustrates the physical size and weight of the Olympus E-1 and the Sony A7S. Three consecutive perspectives from the front, the top, and the back are presented. All width, height and depth measures are rounded to the nearest millimeter. You can also use the toggle button to switch to a percentage comparison if you prefer that the measures are being expressed in relative terms (in this case, the camera on the left – the E-1 – represents 100 percent across all the size and weight measures).
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A7S is notably smaller (19 percent) than the Olympus E-1. Moreover, the A7S is markedly lighter (34 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. A larger imaging sensor will tend to go along with bigger and heavier lenses, although exceptions exist. You can find an overview of optics for the two cameras in the Four Thirds Lens Catalog (E-1) and the Sony FE Lens Catalog (A7S). Mirrorless cameras, such as the A7S, 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.
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, just select a new right or left comparator from among the camera models in the table. Alternatively, you can also move across to the CAM-parator tool and choose from the broad selection of possible comparisons there.
|Camera Body Specifications
|Olympus E-1 (⇒ rgt)||141 mm||104 mm||81 mm||738 g||750||YES||2003||1,699||discont.||check|
|Sony A7S (⇒ lft)||127 mm||94 mm||48 mm||489 g||380||YES||2014||2,499||discont.||check|
|Leica Digilux 3 (⇒ lft | rgt)||146 mm||87 mm||77 mm||606 g||750||no||2006||1,499||discont.||check|
|Nikon D750 (⇒ lft | rgt)||141 mm||113 mm||78 mm||750 g||1230||YES||2014||2,299||latest||check|
|Nikon Df (⇒ lft | rgt)||144 mm||110 mm||67 mm||760 g||1400||YES||2013||2,749||latest||check|
|Olympus E-5 (⇒ lft | rgt)||142 mm||117 mm||75 mm||873 g||750||YES||2010||1,699||discont.||check|
|Olympus E-410 (⇒ lft | rgt)||130 mm||91 mm||53 mm||435 g||500||no||2007||699||discont.||check|
|Olympus E-3 (⇒ lft | rgt)||142 mm||116 mm||75 mm||876 g||750||YES||2007||1,699||discont.||check|
|Olympus E-330 (⇒ lft | rgt)||140 mm||87 mm||72 mm||637 g||750||no||2006||999||discont.||check|
|Olympus E-400 (⇒ lft | rgt)||130 mm||91 mm||53 mm||435 g||500||no||2006||699||discont.||check|
|Olympus E-500 (⇒ lft | rgt)||130 mm||95 mm||66 mm||479 g||750||no||2005||599||discont.||check|
|Olympus E-300 (⇒ lft | rgt)||147 mm||85 mm||64 mm||624 g||750||no||2004||799||discont.||check|
|Panasonic GH5 (⇒ lft | rgt)||139 mm||98 mm||87 mm||725 g||410||YES||2017||1,999||latest||check|
|Panasonic L1 (⇒ lft | rgt)||146 mm||87 mm||64 mm||606 g||750||no||2006||999||discont.||check|
|Sony A7S II (⇒ lft | rgt)||127 mm||96 mm||60 mm||627 g||370||YES||2015||2,999||latest||check|
|Sony A7 (⇒ lft | rgt)||127 mm||94 mm||48 mm||474 g||340||YES||2013||1,699||discont.||check|
|Sony A7R (⇒ lft | rgt)||127 mm||94 mm||48 mm||465 g||340||YES||2013||2,299||discont.||check|
The listed prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The E-1 was launched at a markedly lower price (by 32 percent) than the A7S, 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.
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. 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 associated with larger, more expensive camera bodies and lenses.
Of the two cameras under consideration, the Olympus E-1 features a Four Thirds sensor and the Sony A7S a full frame sensor. The sensor area in the A7S is 280 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.0 and 1.0. The sensor in the E-1 has a native 4:3 aspect ratio, while the one in the A7S offers a 3:2 aspect.
With 12MP, the A7S offers a higher resolution than the E-1 (4.9MP), but the A7S nevertheless has larger individual pixels (pixel pitch of 8.45μm versus 6.78μm for the E-1) due to its larger sensor. Moreover, the A7S is a much more recent model (by 10 years and 9 months) than the E-1, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixel-units.
For most cameras, data on sensor performance has been reported by DXO Mark. 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"). The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.
|Olympus E-1 (⇒ rgt)||Four Thirds||4.9||2560||1920||no||-||-||-||-|
|Sony A7S (⇒ lft)||Full Frame||12.0||4240||2832||1080/60p||23.9||13.2||3702||87|
|Leica Digilux 3 (⇒ lft | rgt)||Four Thirds||7.4||3136||2352||no||-||-||-||-|
|Nikon D750 (⇒ lft | rgt)||Full Frame||24.2||6016||4016||1080/60p||24.8||14.5||2956||93|
|Nikon Df (⇒ lft | rgt)||Full Frame||16.2||4928||3280||no||24.6||13.1||3279||89|
|Olympus E-5 (⇒ lft | rgt)||Four Thirds||12.2||4032||3024||720/30p||21.6||10.5||519||56|
|Olympus E-410 (⇒ lft | rgt)||Four Thirds||10.0||3648||2736||no||21.1||10.0||494||51|
|Olympus E-3 (⇒ lft | rgt)||Four Thirds||10.0||3648||2736||no||21.6||10.5||571||56|
|Olympus E-330 (⇒ lft | rgt)||Four Thirds||7.4||3136||2352||no||-||-||-||-|
|Olympus E-400 (⇒ lft | rgt)||Four Thirds||10.0||3648||2736||no||-||-||-||-|
|Olympus E-500 (⇒ lft | rgt)||Four Thirds||8.0||3264||2448||no||-||-||-||-|
|Olympus E-300 (⇒ lft | rgt)||Four Thirds||8.0||3264||2448||no||-||-||-||-|
|Panasonic GH5 (⇒ lft | rgt)||Four Thirds||20.2||5184||3888||4K/60p||23.9||13.0||807||77|
|Panasonic L1 (⇒ lft | rgt)||Four Thirds||7.4||3136||2352||no||-||-||-||-|
|Sony A7S II (⇒ lft | rgt)||Full Frame||12.0||4240||2832||4K/30p||23.6||13.3||2993||85|
|Sony A7 (⇒ lft | rgt)||Full Frame||24.0||6000||4000||1080/60p||24.8||14.2||2248||90|
|Sony A7R (⇒ lft | rgt)||Full Frame||36.2||7360||4912||1080/60p||25.6||14.1||2746||95|
Many modern cameras cannot only take still pictures, but also record videos. The A7S indeed provides for movie recording, while the E-1 does not. The highest resolution format that the A7S can use is 1080/60p.
Beyond body and sensor, cameras can and do differ across a range of features. For example, the A7S has an electronic viewfinder (2400k 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 adjacent table lists some of the other core features of the Olympus E-1 and Sony A7S along with similar information for a selection of comparators. If you need more detail on the specs, you can find comprehensive listings, for example, in the dpreview camera hub.
|Olympus E-1 (⇒ rgt)||optical||YES||1.8||134||fixed||no||4000||3.0||no||no|
|Sony A7S (⇒ lft)||2400||no||3.0||921||tilting||no||8000||5.0||no||no|
|Leica Digilux 3 (⇒ lft | rgt)||optical||no||2.5||207||fixed||no||4000||3.0||13||no|
|Nikon D750 (⇒ lft | rgt)||optical||YES||3.2||1229||tilting||no||4000||6.0||12||no|
|Nikon Df (⇒ lft | rgt)||optical||YES||3.2||921||fixed||no||4000||5.5||no||no|
|Olympus E-5 (⇒ lft | rgt)||optical||YES||3.0||920||swivel||no||8000||5.0||13||YES|
|Olympus E-410 (⇒ lft | rgt)||optical||no||2.5||215||fixed||no||4000||3.0||10||no|
|Olympus E-3 (⇒ lft | rgt)||optical||YES||2.5||230||swivel||no||8000||5.0||13||YES|
|Olympus E-330 (⇒ lft | rgt)||optical||no||2.5||215||tilting||no||4000||3.0||13||no|
|Olympus E-400 (⇒ lft | rgt)||optical||no||2.5||215||fixed||no||4000||3.0||10||no|
|Olympus E-500 (⇒ lft | rgt)||optical||no||2.5||215||fixed||no||4000||2.5||13||no|
|Olympus E-300 (⇒ lft | rgt)||optical||no||1.8||134||fixed||no||4000||2.5||11||no|
|Panasonic GH5 (⇒ lft | rgt)||3680||no||3.2||1620||swivel||YES||8000||12.0||no||YES|
|Panasonic L1 (⇒ lft | rgt)||optical||no||2.5||207||fixed||no||4000||3.0||13||no|
|Sony A7S II (⇒ lft | rgt)||2400||no||3.0||1229||tilting||no||8000||5.0||no||YES|
|Sony A7 (⇒ lft | rgt)||2400||no||3.0||1230||tilting||no||8000||5.0||no||no|
|Sony A7R (⇒ lft | rgt)||2400||no||3.0||1230||tilting||no||8000||4.0||no||no|
Both the E-1 and the A7S have been discontinued, but can regularly be found used on ebay. The E-1 was replaced by the Olympus E-3, while the A7S was followed by the Sony A7S II.
So how do things add up? Is there a clear favorite between the Olympus E-1 and the Olympus E-1? The listing below highlights the relative strengths of the two models.
Arguments in favor of the Olympus E-1:
- Brighter framing: Features an optical viewfinder for clear, lag-free composition.
- Easier setting verification: Has an LCD display on top to control shooting parameters.
- Longer lasting: Can take more shots (750 versus 380) on a single battery charge.
- More affordable: Was introduced into a lower priced category (32 percent cheaper at launch).
- More heavily discounted: Has been available for much longer (launched in June 2003).
Advantages of the Sony Alpha A7S:
- More detail: Has more megapixels (12 vs 4.9MP), which boosts linear resolution by 59%.
- Better image quality: Is equipped with a larger and more technologically advanced sensor.
- 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 (921k vs 134k dots).
- More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
- Faster shutter: Has a higher mechanical shutter speed (8000/sec vs 4000/sec) to freeze action.
- Faster burst: Shoots at higher frequency (5 vs 3 flaps/sec) to capture the decisive moment.
- More compact: Is smaller (127x94mm vs 141x104mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 249g or 34 percent) and is thus easier to take along.
- More legacy lens friendly: Can use many non-native lenses via adapters.
- More modern: Reflects 10 years and 9 months of technical progress since the E-1 launch.
If the count of individual advantages (bullet points above) is taken as a guide, the A7S is the clear winner of the contest (13 : 5 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.
In any case, while the specs-based evaluation of cameras is instructive in revealing their potential as photographic tools, it says nothing about, for example, the handling, responsiveness, and overall imaging quality of the E-1 and the A7S in practical situations. User reviews that are available, for instance, at amazon can sometimes shed light on these issues, but such feedback is all too often partial, inconsistent, and inaccurate. This is why hands-on reviews by experts are important. The adjacent table relays the overall verdicts of several of the most popular camera review sites. You can find the full text of the reviews, respectively, at cameralabs.com, dpreview.com, ephotozine.com, imaging-resource.com, and photographyblog.com.
|Olympus E-1 (⇒ rgt)||-||Rec||reviewed||reviewed||-||2003||1,699||discont.||check|
|Sony A7S (⇒ lft)||-||86/100 Gold||4.5/5||4.5/5||5/5||2014||2,499||discont.||check|
|Leica Digilux 3 (⇒ lft | rgt)||-||-||-||-||-||2006||1,499||discont.||check|
|Nikon D750 (⇒ lft | rgt)||HiRec||90/100 Gold||4.5/5||5/5||4.5/5||2014||2,299||latest||check|
|Nikon Df (⇒ lft | rgt)||-||81/100||4/5||4/5||4/5||2013||2,749||latest||check|
|Olympus E-5 (⇒ lft | rgt)||-||75/100||4/5||-||4.5/5||2010||1,699||discont.||check|
|Olympus E-410 (⇒ lft | rgt)||86/100||HiRec||4/5||reviewed||4.5/5||2007||699||discont.||check|
|Olympus E-3 (⇒ lft | rgt)||88/100||HiRec||reviewed||reviewed||4/5||2007||1,699||discont.||check|
|Olympus E-330 (⇒ lft | rgt)||-||Rec||reviewed||3.5/5||-||2006||999||discont.||check|
|Olympus E-400 (⇒ lft | rgt)||85/100||-||4/5||-||4/5||2006||699||discont.||check|
|Olympus E-500 (⇒ lft | rgt)||76/100||HiRec||-||-||-||2005||599||discont.||check|
|Olympus E-300 (⇒ lft | rgt)||-||Rec||reviewed||reviewed||4.5/5||2004||799||discont.||check|
|Panasonic GH5 (⇒ lft | rgt)||HiRec||85/100 Gold||4.5/5||5/5||5/5||2017||1,999||latest||check|
|Panasonic L1 (⇒ lft | rgt)||85/100||Rec||-||reviewed||3.5/5||2006||999||discont.||check|
|Sony A7S II (⇒ lft | rgt)||Rec||-||4.5/5||5/5||5/5||2015||2,999||latest||check|
|Sony A7 (⇒ lft | rgt)||HiRec||80/100 Silver||5/5||4.5/5||5/5||2013||1,699||discont.||check|
|Sony A7R (⇒ lft | rgt)||HiRec||82/100 Gold||4.5/5||5/5||5/5||2013||2,299||discont.||check|
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. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.
If you would like to see a different side-by-side camera review, just use the search menu below. 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 send me an email, and I will try to locate and add the respective data to the application.
- Canon 1D X Mark II vs Canon 5D Mark II
- Canon 80D vs Canon M5
- Canon G1 X Mark III vs Canon 80D
- Canon G9 X vs Canon T6
- Canon XC10 vs Canon G7 X
- Fujifilm X-A3 vs Canon G7 X Mark II
- Kodak S-1 vs Panasonic GM1
- Nikon D810 vs Nikon D7100
- Olympus E-1 vs Olympus E-300
- Panasonic GM5 vs Canon G1 X Mark II
- Panasonic GX7 vs Panasonic G85
- Panasonic GX7 vs Panasonic GX85