Olympus E-1 vs Sony A7S
The Olympus E-1 and the Sony Alpha A7S are two professional cameras that were revealed to the public, 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 (A7S) sensor. The Olympus has a resolution of 4.9 megapixels, whereas the Sony provides 12 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
|Olympus E-1||Sony A7S|
|Digital single lens reflex||Mirrorless system camera|
|Four Thirds lenses||Sony E mount lenses|
|4.9 MP, Four Thirds Sensor||12 MP, Full Frame Sensor|
|no Video||1080/60p Video|
|ISO 100-800 (100-3200)||ISO 100-102400 (50-409600)|
|Optical viewfinder||Electronic viewfinder (2400k dots)|
|1.8" LCD, 134k dots||3.0" LCD, 921k dots|
|Fixed screen (not touch-sensitive)||Tilting screen (not touch-sensitive)|
|3 shutter flaps per second||5 shutter flaps per second|
|Weathersealed body||Weathersealed body|
|750 shots per battery charge||380 shots per battery charge|
|141 x 104 x 81 mm, 738 g||127 x 94 x 48 mm, 489 g|
Going beyond this snapshot of core features and characteristics, what are the differences between the Olympus E-1 and the Sony Alpha A7S? 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.
The physical size and weight of the Olympus E-1 and the Sony A7S 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 width, height and depth measures are rounded to the nearest millimeter.
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 compare the optics available 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.
Concerning battery life, the E-1 gets 750 shots out of its BLM-1 battery, while the A7S can take 380 images on a single charge of its NP-FW50 power pack. The power pack in the A7S can be charged via the USB port, which can be very convenient when travelling.
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 camera comparisons there.
|Olympus E-1»||141 mm||104 mm||81 mm||738 g||750||Y||Jun 2003||1,699||Olympus E-1|
|Sony A7S«||127 mm||94 mm||48 mm||489 g||380||Y||Apr 2014||2,499||Sony A7S|
|Canon 6D Mark II« »||144 mm||111 mm||75 mm||765 g||1200||Y||Jun 2017||1,999||Canon 6D Mark II|
|Canon 7D« »||148 mm||111 mm||74 mm||860 g||800||Y||Sep 2009||1,699||Canon 7D|
|Leica Digilux 3« »||146 mm||87 mm||77 mm||606 g||750||n||Sep 2006||1,499||Leica Digilux 3|
|Nikon D500« »||147 mm||115 mm||81 mm||860 g||1240||Y||Jan 2016||1,999||Nikon D500|
|Nikon D750« »||141 mm||113 mm||78 mm||750 g||1230||Y||Sep 2014||2,299||Nikon D750|
|Nikon D610« »||141 mm||113 mm||82 mm||850 g||900||Y||Oct 2013||1,999||Nikon D610|
|Nikon D7000« »||132 mm||105 mm||77 mm||780 g||1050||Y||Sep 2010||1,499||Nikon D7000|
|Olympus E-5« »||142 mm||117 mm||75 mm||873 g||750||Y||Sep 2010||1,699||Olympus E-5|
|Olympus E-3« »||142 mm||116 mm||75 mm||876 g||750||Y||Oct 2007||1,699||Olympus E-3|
|Olympus E-330« »||140 mm||87 mm||72 mm||637 g||750||n||Jan 2006||999||Olympus E-330|
|Olympus E-300« »||147 mm||85 mm||64 mm||624 g||750||n||Sep 2004||799||Olympus E-300|
|Sony A7S II« »||127 mm||96 mm||60 mm||627 g||370||Y||Sep 2015||2,999||Sony A7S II|
|Sony A7« »||127 mm||94 mm||48 mm||474 g||340||Y||Oct 2013||1,699||Sony A7|
|Sony A7R« »||127 mm||94 mm||48 mm||465 g||340||Y||Oct 2013||2,299||Sony A7R|
|Sony RX1R« »||113 mm||65 mm||70 mm||482 g||270||n||Jun 2013||2,799||Sony RX1R|
|Note: Measurements and pricing do not include easily detachable parts, such as interchangeable lenses or optional viewfinders.|
Any camera decision will obviously take relative prices into account. The manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. 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 imaging sensor is at the core of digital cameras and its size is one of the main determining factors of image quality. All other things equal, a large sensor will have larger individual pixel-units that offer better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixels 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.
The resolution advantage of the Sony A7S implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A7S for good quality output (200 dots per inch) amounts to 21.2 x 14.2 inch or 53.8 x 36 cm, for very good quality (250 dpi) 17 x 11.3 inch or 43.1 x 28.8 cm, and for excellent quality (300 dpi) 14.1 x 9.4 inch or 35.9 x 24 cm. The corresponding values for the Olympus E-1 are 12.8 x 9.6 inch or 32.5 x 24.4 cm for good quality, 10.2 x 7.7 inch or 26 x 19.5 cm for very good quality, and 8.5 x 6.4 inch 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 A7S are ISO 100 to ISO 102400, with the possibility to increase the ISO range to 50-409600.
For many cameras, data on sensor performance has been reported by DXO Mark. 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.
|Olympus E-1||Four Thirds||4.9||2560||1920||none||..||..||..||..||Olympus E-1|
|Sony A7S||Full Frame||12.0||4240||2832||1080/60p||23.9||13.2||3702||87||Sony A7S|
|Canon 6D Mark II||Full Frame||26.0||6240||4160||1080/60p||24.4||11.9||2862||85||Canon 6D Mark II|
|Canon 7D||APS-C||17.9||5184||3456||1080/30p||22.0||11.7||854||66||Canon 7D|
|Leica Digilux 3||Four Thirds||7.4||3136||2352||none||..||..||..||..||Leica Digilux 3|
|Nikon D500||APS-C||20.7||5568||3712||4K/30p||24.0||14.0||1324||83||Nikon D500|
|Nikon D750||Full Frame||24.2||6016||4016||1080/60p||24.8||14.5||2956||93||Nikon D750|
|Nikon D610||Full Frame||24.2||6016||4016||1080/30p||25.1||14.4||2925||94||Nikon D610|
|Nikon D7000||APS-C||16.1||4928||3264||10800/24p||23.5||13.9||1167||80||Nikon D7000|
|Olympus E-5||Four Thirds||12.2||4032||3024||720/30p||21.6||10.5||519||56||Olympus E-5|
|Olympus E-3||Four Thirds||10.0||3648||2736||none||21.6||10.5||571||56||Olympus E-3|
|Olympus E-330||Four Thirds||7.4||3136||2352||none||..||..||..||..||Olympus E-330|
|Olympus E-300||Four Thirds||8.0||3264||2448||none||..||..||..||..||Olympus E-300|
|Sony A7S II||Full Frame||12.0||4240||2832||4K/30p||23.6||13.3||2993||85||Sony A7S II|
|Sony A7||Full Frame||24.0||6000||4000||1080/60p||24.8||14.2||2248||90||Sony A7|
|Sony A7R||Full Frame||36.2||7360||4912||1080/60p||25.6||14.1||2746||95||Sony A7R|
|Sony RX1R||Full Frame||24.0||6000||4000||1080/60p||25.0||13.6||2537||91||Sony RX1R|
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 viewfinders of both cameras offer the same field of view (100%), but the viewfinder of the A7S has a higher magnification than the one of the E-1 (0.71x vs 0.48x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The following table reports on some other key feature differences and similarities of the Olympus E-1, the Sony A7S, and comparable cameras.
|Olympus E-1||optical||Y||1.8||134||fixed||n||1/4000s||3.0||n||n||Olympus E-1|
|Sony A7S||2400||n||3.0||921||tilting||n||1/8000s||5.0||n||n||Sony A7S|
|Canon 6D Mark II||optical||Y||3.0||1040||swivel||Y||1/4000s||6.5||n||n||Canon 6D Mark II|
|Canon 7D||optical||Y||3.0||920||fixed||n||1/8000s||8.0||Y||n||Canon 7D|
|Leica Digilux 3||optical||n||2.5||207||fixed||n||1/4000s||3.0||Y||n||Leica Digilux 3|
|Nikon D500||optical||Y||3.2||2359||tilting||Y||1/8000s||10.0||n||n||Nikon D500|
|Nikon D750||optical||Y||3.2||1229||tilting||n||1/4000s||6.0||Y||n||Nikon D750|
|Nikon D610||optical||Y||3.2||921||fixed||n||1/4000s||6.0||Y||n||Nikon D610|
|Nikon D7000||optical||Y||3.0||921||fixed||n||1/8000s||6.0||Y||n||Nikon D7000|
|Olympus E-5||optical||Y||3.0||920||swivel||n||1/8000s||5.0||Y||Y||Olympus E-5|
|Olympus E-3||optical||Y||2.5||230||swivel||n||1/8000s||5.0||Y||Y||Olympus E-3|
|Olympus E-330||optical||n||2.5||215||tilting||n||1/4000s||3.0||Y||n||Olympus E-330|
|Olympus E-300||optical||n||1.8||134||fixed||n||1/4000s||2.5||Y||n||Olympus E-300|
|Sony A7S II||2400||n||3.0||1229||tilting||n||1/8000s||5.0||n||Y||Sony A7S II|
|Sony A7||2400||n||3.0||1230||tilting||n||1/8000s||5.0||n||n||Sony A7|
|Sony A7R||2400||n||3.0||1230||tilting||n||1/8000s||4.0||n||n||Sony A7R|
|Sony RX1R||optional||n||3.0||1229||fixed||n||1/4000s||5.0||Y||n||Sony RX1R|
One feature that is present on the E-1, but is missing on the A7S 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 reported shutter speed information refers to the use of the mechanical shutter. Yet, some cameras only have an electronic shutter, while others have an electronic shutter in addition to a mechanical one. In fact, the A7S is one of those camera that have an additional electronic shutter, which makes completely silent shooting possible. However, this mode is less suitable for photographing moving objects (risk of rolling shutter) or shooting under artificial light sources (risk of flickering).
The E-1 writes its imaging data to Compact Flash or xD Picture cards, while the A7S 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 A7S only has one slot.
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 A7S and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
|Olympus E-1||Y||none||none||-||-||none||2.0||-||-||-||Olympus E-1|
|Sony A7S||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-||Sony A7S|
|Canon 6D Mark II||Y||stereo||mono||Y||-||mini||2.0||Y||Y||Y||Canon 6D Mark II|
|Canon 7D||Y||mono||none||Y||-||mini||2.0||-||-||-||Canon 7D|
|Leica Digilux 3||Y||stereo||mono||-||-||none||2.0||-||-||-||Leica Digilux 3|
|Nikon D500||Y||stereo||mono||Y||Y||mini||3.0||Y||Y||Y||Nikon D500|
|Nikon D750||Y||stereo||mono||Y||Y||mini||2.0||Y||-||-||Nikon D750|
|Nikon D610||Y||mono||mono||Y||Y||mini||2.0||-||-||-||Nikon D610|
|Nikon D7000||Y||mono||mono||Y||-||mini||2.0||-||-||-||Nikon D7000|
|Olympus E-5||Y||stereo||none||-||-||mini||2.0||-||-||-||Olympus E-5|
|Olympus E-3||Y||none||none||-||-||none||2.0||-||-||-||Olympus E-3|
|Olympus E-330||Y||none||none||-||-||none||2.0||-||-||-||Olympus E-330|
|Olympus E-300||Y||none||none||-||-||none||2.0||-||-||-||Olympus E-300|
|Sony A7S II||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-||Sony A7S II|
|Sony A7||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-||Sony A7|
|Sony A7R||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-||Sony A7R|
|Sony RX1R||Y||stereo||mono||Y||-||mini||2.0||-||-||-||Sony RX1R|
It is notable that the A7S 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 offer wifi capability.
Studio photographers will appreciate that the Olympus E-1 (unlike the A7S) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
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. 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.
So how do things add up? Which of the two cameras – the Olympus E-1 or the Sony A7S – 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.
Reasons to prefer the Olympus E-1:
- Brighter framing: Features an optical viewfinder for clear, lag-free composition.
- Easier setting verification: Features an LCD display on top to control shooting parameters.
- Longer lasting: Can take more shots (750 versus 380) on a single battery charge.
- Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
- 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 (32 percent cheaper at launch).
- More heavily discounted: Has been available for much longer (launched in June 2003).
Arguments in favor 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.
- 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 (0.71x 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 (921k vs 134k dots).
- More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
- Faster burst: Shoots at higher frequency (5 vs 3 flaps/sec) to capture the decisive moment.
- Less disturbing: Has an electronic shutter option for completely silent shooting.
- 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.
- 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 modern: Reflects 10 years and 9 months of technical progress since the E-1 launch.
If the number of relative strengths (bullet points above) is taken as a guide, the A7S is the clear winner of the contest (20 : 7 points). However, the pertinence of the various camera strengths will differ across photographers, so that you might want to weigh individual camera traits according to their importance for your own imaging needs before making a camera decision. 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.
How about other alternatives? Do the specifications of the Olympus E-1 and the Sony A7S 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 says little about, for example, the shooting experience and imaging performance 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 expert reviews are important. The following table reports the overall ratings of the cameras as published by some of the major camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, and photographyblog). 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.
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. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, 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.
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. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.
- Canon 1D Mark IV vs Olympus E-1
- Canon 1D Mark IV vs Sony A7S II
- Canon 5D Mark II vs Sony A7S II
- Canon 5D Mark III vs Sony A7S
- Canon G1 X Mark III vs Sony A7S
- Nikon D700 vs Sony A7S II
- Nikon Df vs Olympus E-1
- Olympus E-1 vs Olympus E-3
- Olympus E-600 vs Sony A7S
- Panasonic G95 vs Sony A7S
- Pentax K-70 vs Sony A7S
- Sony A77 II vs Sony A7S
Specifications: Olympus E-1 vs Sony A7S
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 Model||Olympus E-1||Sony A7S|
|Camera Type||Digital single lens reflex||Mirrorless system camera|
|Camera Lens||Four Thirds lenses||Sony E mount lenses|
|Launch Date||June 2003||April 2014|
|Launch Price||USD 1699||USD 2499|
|Sensor Specs||Olympus E-1||Sony A7S|
|Sensor Format||Four Thirds Sensor||Full Frame Sensor|
|Sensor Size||17.3 x 13.0 mm||35.8 x 23.9 mm|
|Sensor Area||224.9 mm2||855.62 mm2|
|Sensor Diagonal||21.6 mm||43 mm|
|Sensor Resolution||4.9 Megapixels||12 Megapixels|
|Image Resolution||2560 x 1920 pixels||4240 x 2832 pixels|
|Pixel Pitch||6.78 μm||8.45 μm|
|Pixel Density||2.19 MP/cm2||1.40 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||no Video||1080/60p Video|
|ISO Setting||100-800 ISO||100-102400 ISO|
|ISO Boost||100-3200 ISO||50-409600 ISO|
|Image Processor||TruePic||BIONZ X|
|DXO Sensor Quality (score)||..||87|
|DXO Color Depth (bits)||..||23.9|
|DXO Dynamic Range (EV)||..||13.2|
|DXO Low Light (ISO)||..||3702|
|Screen Specs||Olympus E-1||Sony A7S|
|Viewfinder Type||Optical viewfinder||Electronic viewfinder|
|Viewfinder Field of View||100%||100%|
|Viewfinder Resolution||2400k dots|
|Top-Level Screen||Control Panel||no Top Display|
|LCD Framing||Live View|
|Rear LCD Size||1.8 inch||3.0 inch|
|LCD Resolution||134k dots||921k dots|
|LCD Attachment||Fixed screen||Tilting screen|
|Shooting Specs||Olympus E-1||Sony A7S|
|Focus System||Phase-detect AF||Contrast-detect AF|
|Manual Focusing Aid||No Peaking Feature||Focus Peaking|
|Max Shutter Speed (mechanical)||1/4000/s||1/8000/s|
|Continuous Shooting||3 shutter flaps/s||5 shutter flaps/s|
|Electronic Shutter||no E-Shutter||YES|
|Fill Flash||no On-Board Flash||no On-Board 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 A7S|
|Studio Flash||PC Sync socket||no PC Sync|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||no HDMI||micro HDMI|
|Microphone Port||no MIC socket||External MIC port|
|Headphone Socket||no Headphone port||Headphone port|
|Wifi Support||no Wifi||Wifi built-in|
|Near-Field Communication||no NFC||NFC built-in|
|Body Specs||Olympus E-1||Sony A7S|
|Environmental Sealing||Weathersealed body||Weathersealed body|
|Battery Life (CIPA)||750 shots per charge||380 shots per charge|
|In-Camera Charging||no USB charging||USB charging|
141 x 104 x 81 mm
(5.6 x 4.1 x 3.2 in)
127 x 94 x 48 mm
(5.0 x 3.7 x 1.9 in)
|Camera Weight||738 g (26.0 oz)||489 g (17.2 oz)|
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