Sony A900 vs Olympus E-M1
The Sony Alpha A900 and the Olympus OM-D E-M1 are two digital cameras that were revealed to the public, respectively, in September 2008 and September 2013. The A900 is a DSLR, while the E-M1 is a mirrorless interchangeable lens camera. The cameras are based on a full frame (A900) and a Four Thirds (E-M1) sensor. The Sony has a resolution of 24.4 megapixels, whereas the Olympus provides 15.9 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
Going beyond this snapshot of core features and characteristics, what are the differences between the Sony Alpha A900 and the Olympus OM-D E-M1? 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 Sony A900 and the Olympus E-M1 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.
The E-M1 can be obtained in two different colors (black, silver), while the A900 is only available in black.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Olympus E-M1 is considerably smaller (33 percent) than the Sony A900. Moreover, the E-M1 is substantially lighter (44 percent) than the A900. 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 A900 gets 880 shots out of its Sony NP-FM500H battery, while the E-M1 can take 350 images on a single charge of its Olympus BLN-1 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.
Camera Model |
Camera Width |
Camera Height |
Camera Depth |
Camera Weight |
Battery Life |
Weather Sealing |
Camera Launch |
Launch Price (USD) |
Street Price |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Sony A900 | 156 mm | 117 mm | 82 mm | 895 g | 880 | Y | Sep 2008 | 2,999 | ebay.com | |
2. | Olympus E-M1 | 130 mm | 94 mm | 63 mm | 497 g | 350 | Y | Sep 2013 | 1,399 | ebay.com | |
3. | Canon 5D Mark II | 152 mm | 114 mm | 75 mm | 850 g | 850 | Y | Sep 2008 | 3,499 | ebay.com | |
4. | Canon 5D Mark III | 152 mm | 116 mm | 76 mm | 950 g | 950 | Y | Mar 2012 | 3,499 | ebay.com | |
5. | Nikon D700 | 147 mm | 123 mm | 77 mm | 1074 g | 1000 | Y | Jul 2008 | 2,999 | ebay.com | |
6. | Olympus E-M1 II | 134 mm | 91 mm | 67 mm | 574 g | 440 | Y | Sep 2016 | 1,999 | ebay.com | |
7. | Olympus E-M5 | 122 mm | 89 mm | 43 mm | 425 g | 360 | Y | Feb 2012 | 1,299 | ebay.com | |
8. | Olympus E-M5 II | 124 mm | 85 mm | 45 mm | 469 g | 310 | Y | Feb 2015 | 1,099 | ebay.com | |
9. | Olympus E-P5 | 122 mm | 69 mm | 37 mm | 420 g | 330 | n | May 2013 | 999 | ebay.com | |
10. | Olympus PEN-F | 125 mm | 72 mm | 37 mm | 427 g | 330 | n | Jan 2016 | 1,199 | ebay.com | |
11. | Panasonic S1 | 149 mm | 110 mm | 97 mm | 1017 g | 400 | Y | Feb 2019 | 2,499 | amazon.com | |
12. | Sony A7 III | 127 mm | 96 mm | 74 mm | 650 g | 610 | Y | Feb 2018 | 1,999 | amazon.com | |
13. | Sony A7S II | 127 mm | 96 mm | 60 mm | 627 g | 370 | Y | Sep 2015 | 2,999 | ebay.com | |
14. | Sony A9 | 127 mm | 96 mm | 63 mm | 673 g | 650 | Y | Apr 2017 | 4,499 | ebay.com | |
15. | Sony A99 | 147 mm | 111 mm | 78 mm | 812 g | 500 | Y | Sep 2012 | 2,799 | ebay.com | |
16. | Sony A99 II | 143 mm | 104 mm | 76 mm | 849 g | 490 | Y | Sep 2016 | 3,199 | ebay.com | |
17. | Sony A850 | 156 mm | 117 mm | 82 mm | 895 g | 880 | Y | Aug 2009 | 1,999 | ebay.com | |
Note: 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 E-M1 was launched at a markedly lower price (by 53 percent) than the A900, 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 Sony A900 features a full frame sensor and the Olympus E-M1 a Four Thirds sensor. The sensor area in the E-M1 is 74 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.0 and 2.0. The sensor in the A900 has a native 3:2 aspect ratio, while the one in the E-M1 offers a 4:3 aspect.
With 24.4MP, the A900 offers a higher resolution than the E-M1 (15.9MP), but the A900 nevertheless has larger individual pixels (pixel pitch of 5.94μm versus 3.76μm for the E-M1) due to its larger sensor. However, the E-M1 is a much more recent model (by 5 years) than the A900, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixels. Coming back to sensor resolution, it should be mentioned that the E-M1 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
The resolution advantage of the Sony A900 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A900 for good quality output (200 dots per inch) amounts to 30.2 x 20.2 inches or 76.8 x 51.2 cm, for very good quality (250 dpi) 24.2 x 16.1 inches or 61.4 x 41 cm, and for excellent quality (300 dpi) 20.2 x 13.4 inches or 51.2 x 34.1 cm. The corresponding values for the Olympus E-M1 are 23 x 17.3 inches or 58.5 x 43.9 cm for good quality, 18.4 x 13.8 inches or 46.8 x 35.1 cm for very good quality, and 15.4 x 11.5 inches or 39 x 29.3 cm for excellent quality prints.
The E-M1 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.
The Sony Alpha A900 has a native sensitivity range from ISO 200 to ISO 3200, which can be extended to ISO 100-6400. The corresponding ISO settings for the Olympus OM-D E-M1 are ISO 200 to ISO 25600, with the possibility to increase the ISO range to 100-25600.
Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.
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. Of the two cameras under review, the A900 has a notably higher overall DXO score than the E-M1 (overall score 6 points higher), which gives it an advantage in terms of imaging quality. This advantage is based on 0.7 bits higher color depth, 0.4 EV of lower dynamic range, and 0.9 stops in additional low light sensitivity. The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.
Camera Model |
Sensor Class |
Resolution (MP) |
Horiz. Pixels |
Vert. Pixels |
Video Format |
DXO Portrait |
DXO Landscape |
DXO Sports |
DXO Overall |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Sony A900 | Full Frame | 24.4 | 6048 | 4032 | none | 23.7 | 12.3 | 1431 | 79 | |
2. | Olympus E-M1 | Four Thirds | 15.9 | 4608 | 3456 | 1080/30p | 23.0 | 12.7 | 757 | 73 | |
3. | Canon 5D Mark II | Full Frame | 21.0 | 5616 | 3744 | 1080/30p | 23.7 | 11.9 | 1815 | 79 | |
4. | Canon 5D Mark III | Full Frame | 22.1 | 5760 | 3840 | 1080/30p | 24.0 | 11.7 | 2293 | 81 | |
5. | Nikon D700 | Full Frame | 12.1 | 4256 | 2832 | none | 23.5 | 12.2 | 2303 | 80 | |
6. | Olympus E-M1 II | Four Thirds | 20.2 | 5184 | 3888 | 4K/30p | 23.7 | 12.8 | 1312 | 80 | |
7. | Olympus E-M5 | Four Thirds | 15.9 | 4608 | 3456 | 1080/60i | 22.8 | 12.3 | 826 | 71 | |
8. | Olympus E-M5 II | Four Thirds | 15.9 | 4608 | 3456 | 1080/60p | 23.0 | 12.5 | 842 | 73 | |
9. | Olympus E-P5 | Four Thirds | 15.9 | 4608 | 3456 | 1080/30p | 22.8 | 12.4 | 895 | 72 | |
10. | Olympus PEN-F | Four Thirds | 20.2 | 5184 | 3888 | 1080/60p | 23.1 | 12.4 | 894 | 74 | |
11. | Panasonic S1 | Full Frame | 24.0 | 6000 | 4000 | 4K/60p | 25.2 | 14.5 | 3333 | 95 | |
12. | Sony A7 III | Full Frame | 24.0 | 6000 | 4000 | 4K/30p | 25.0 | 14.7 | 3730 | 96 | |
13. | Sony A7S II | Full Frame | 12.0 | 4240 | 2832 | 4K/30p | 23.6 | 13.3 | 2993 | 85 | |
14. | Sony A9 | Full Frame | 24.0 | 6000 | 4000 | 4K/30p | 24.9 | 13.3 | 3517 | 92 | |
15. | Sony A99 | Full Frame | 24.0 | 6000 | 4000 | 1080/60p | 25.0 | 14.0 | 1555 | 89 | |
16. | Sony A99 II | Full Frame | 42.2 | 7952 | 5304 | 4K/30p | 25.4 | 13.4 | 2317 | 92 | |
17. | Sony A850 | Full Frame | 24.4 | 6048 | 4032 | none | 23.8 | 12.2 | 1415 | 79 |
Many modern cameras are not only capable of taking still images, but can also record movies. The E-M1 indeed provides for movie recording, while the A900 does not. The highest resolution format that the E-M1 can use is 1080/30p.
Feature comparison
Beyond body and sensor, cameras can and do differ across a range of features. For example, the E-M1 has an electronic viewfinder (2360k dots), while the A900 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%), as well as the same magnification (0.74x). The table below summarizes some of the other core capabilities of the Sony A900 and Olympus E-M1 in connection with corresponding information for a sample of similar cameras.
Camera Model |
Viewfinder (Type or 000 dots) |
Control Panel (yes/no) |
LCD Specifications (inch/000 dots) |
LCD Attach- ment |
Touch Screen (yes/no) |
Max Shutter Speed * |
Max Shutter Flaps * |
Built-in Flash (yes/no) |
Built-in Image Stab |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Sony A900 | optical | Y | 3.0 / 922 | fixed | n | 1/8000s | 5.0/s | n | Y | |
2. | Olympus E-M1 | 2360 | n | 3.0 / 1037 | tilting | Y | 1/8000s | 10.0/s | n | Y | |
3. | Canon 5D Mark II | optical | Y | 3.0 / 920 | fixed | n | 1/8000s | 3.9/s | n | n | |
4. | Canon 5D Mark III | optical | Y | 3.2 / 1040 | fixed | n | 1/8000s | 6.0/s | n | n | |
5. | Nikon D700 | optical | Y | 3.0 / 922 | fixed | n | 1/8000s | 8.0/s | Y | n | |
6. | Olympus E-M1 II | 2360 | n | 3.0 / 1037 | swivel | Y | 1/8000s | 18.0/s | n | Y | |
7. | Olympus E-M5 | 1440 | n | 3.0 / 610 | tilting | Y | 1/4000s | 9.0/s | n | Y | |
8. | Olympus E-M5 II | 2360 | n | 3.0 / 1037 | swivel | Y | 1/8000s | 10.0/s | n | Y | |
9. | Olympus E-P5 | optional | n | 3.0 / 1037 | tilting | Y | 1/8000s | 9.0/s | Y | Y | |
10. | Olympus PEN-F | 2360 | n | 3.0 / 1037 | swivel | Y | 1/8000s | 10.0/s | n | Y | |
11. | Panasonic S1 | 5760 | Y | 3.2 / 2100 | full-flex | Y | 1/8000s | 9.0/s | n | Y | |
12. | Sony A7 III | 2359 | n | 3.0 / 922 | tilting | Y | 1/8000s | 10.0/s | n | Y | |
13. | Sony A7S II | 2400 | n | 3.0 / 1229 | tilting | n | 1/8000s | 5.0/s | n | Y | |
14. | Sony A9 | 3686 | n | 3.0 / 1440 | tilting | Y | 1/8000s | 20.0/s | n | Y | |
15. | Sony A99 | 2359 | Y | 3.0 / 1229 | full-flex | n | 1/8000s | 6.0/s | n | Y | |
16. | Sony A99 II | 2400 | Y | 3.0 / 1229 | full-flex | n | 1/8000s | 12.0/s | n | Y | |
17. | Sony A850 | optical | Y | 3.0 / 922 | fixed | n | 1/8000s | 3.0/s | n | Y | |
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one. |
One feature that is present on the A900, but is missing on the E-M1 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 E-M1 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 Olympus E-M1 has an intervalometer built-in. This enables the photographer to capture time lapse sequences, such as flower blooming, a sunset or moon rise, without purchasing an external camera trigger and related software.
The A900 writes its imaging data to Compact Flash or Memory Stick PRO Duo cards, while the E-M1 uses SDXC cards. The A900 features dual card slots, which can be very useful in case a memory card fails. In contrast, the E-M1 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 Sony Alpha A900 and Olympus OM-D E-M1 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Camera Model |
Hotshoe Port |
Internal Mic / Speaker |
Microphone Port |
Headphone Port |
HDMI Port |
USB Port |
WiFi Support |
NFC Support |
Bluetooth Support |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Sony A900 | Y | - / - | - | - | mini | 2.0 | - | - | - | |
2. | Olympus E-M1 | Y | stereo / mono | Y | - | micro | 2.0 | Y | - | - | |
3. | Canon 5D Mark II | Y | mono / mono | Y | - | mini | 2.0 | - | - | - | |
4. | Canon 5D Mark III | Y | mono / mono | Y | Y | mini | 2.0 | - | - | - | |
5. | Nikon D700 | Y | - / - | - | - | mini | 2.0 | - | - | - | |
6. | Olympus E-M1 II | Y | stereo / mono | Y | Y | micro | 3.0 | Y | - | - | |
7. | Olympus E-M5 | Y | stereo / mono | - | - | mini | 2.0 | - | - | - | |
8. | Olympus E-M5 II | Y | stereo / mono | Y | - | micro | 2.0 | Y | - | - | |
9. | Olympus E-P5 | Y | stereo / mono | - | - | micro | 2.0 | Y | - | - | |
10. | Olympus PEN-F | Y | stereo / mono | - | - | micro | 2.0 | Y | - | - | |
11. | Panasonic S1 | Y | stereo / mono | Y | Y | full | 3.1 | Y | - | Y | |
12. | Sony A7 III | Y | stereo / mono | Y | Y | micro | 3.1 | Y | Y | Y | |
13. | Sony A7S II | Y | stereo / mono | Y | Y | micro | 2.0 | Y | Y | - | |
14. | Sony A9 | Y | stereo / mono | Y | Y | micro | 2.0 | Y | Y | Y | |
15. | Sony A99 | Y | stereo / mono | Y | Y | mini | 2.0 | - | - | - | |
16. | Sony A99 II | Y | stereo / mono | Y | Y | micro | 2.0 | Y | Y | Y | |
17. | Sony A850 | Y | - / - | - | - | mini | 2.0 | - | - | - |
It is notable that the E-M1 offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the A900 does not provide wifi capability.
Both cameras feature a PC Sync terminal to control professional strobe lights, which will be appreciated by studio photographers.
Both the A900 and the E-M1 have been discontinued, but can regularly be found used on ebay. The A900 was replaced by the Sony A99, while the E-M1 was followed by the Olympus E-M1 II. Further information on the features and operation of the A900 and E-M1 can be found, respectively, in the Sony A900 Manual (free pdf) or the online Olympus E-M1 Manual.
Review summary
So how do things add up? Is there a clear favorite between the Sony A900 and the Olympus E-M1? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.
Advantages of the Sony Alpha A900:
- More detail: Offers more megapixels (24.4 vs 15.9MP) with a 26% higher linear resolution.
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- Better image quality: Scores markedly higher (6 points) in the DXO overall assessment.
- Better low-light sensitivity: Requires less light for good images (0.9 stops ISO advantage).
- 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 (880 versus 350) 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 September 2008).
Reasons to prefer the Olympus OM-D E-M1:
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- Broader imaging potential: Can capture not only stills but also 1080/30p video.
- Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
- More framing info: Has an electronic viewfinder that displays shooting data.
- More detailed LCD: Has a higher resolution rear screen (1037k vs 922k 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.
- Faster burst: Shoots at higher frequency (10 vs 5 flaps/sec) to capture the decisive moment.
- Less disturbing: Has an electronic shutter option for completely silent shooting.
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- More compact: Is smaller (130x94mm vs 156x117mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 398g or 44 percent) and is thus easier to take along.
- 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.
- More affordable: Was introduced into a lower priced category (53 percent cheaper at launch).
- More modern: Reflects 5 years of technical progress since the A900 launch.
If the count of relative strengths (bullet points above) is taken as a measure, the E-M1 is the clear winner of the contest (16 : 9 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.
How about other alternatives? Do the specifications of the Sony A900 and the Olympus E-M1 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 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 A900 and the E-M1 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], 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.
Camera Model |
AP score |
CL score |
DCW score |
DPR score |
EPZ score |
PB score |
Camera Launch |
Launch Price (USD) |
Street Price |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Sony A900 | .. | + + | .. | + + | 4.5/5 | 5/5 | Sep 2008 | 2,999 | ebay.com | |
2. | Olympus E-M1 | 5/5 | + + | .. | 84/100 | 4.5/5 | 4.5/5 | Sep 2013 | 1,399 | ebay.com | |
3. | Canon 5D Mark II | 4/5 | 91/100 | .. | 79/100 | 4/5 | .. | Sep 2008 | 3,499 | ebay.com | |
4. | Canon 5D Mark III | .. | + + | .. | 82/100 | 4.5/5 | 4.5/5 | Mar 2012 | 3,499 | ebay.com | |
5. | Nikon D700 | .. | 89/100 | .. | + + | 4.5/5 | 4.5/5 | Jul 2008 | 2,999 | ebay.com | |
6. | Olympus E-M1 II | 5/5 | + + | 5/5 | 85/100 | 4.5/5 | 4.5/5 | Sep 2016 | 1,999 | ebay.com | |
7. | Olympus E-M5 | 4/5 | + + | .. | 80/100 | 4.5/5 | 5/5 | Feb 2012 | 1,299 | ebay.com | |
8. | Olympus E-M5 II | 5/5 | + + | 4.5/5 | 81/100 | 5/5 | 5/5 | Feb 2015 | 1,099 | ebay.com | |
9. | Olympus E-P5 | 5/5 | + + | .. | 78/100 | 4.5/5 | 5/5 | May 2013 | 999 | ebay.com | |
10. | Olympus PEN-F | .. | .. | 4/5 | 82/100 | 4.5/5 | 5/5 | Jan 2016 | 1,199 | ebay.com | |
11. | Panasonic S1 | 4.5/5 | + + | 4.5/5 | 88/100 | 4.5/5 | 4/5 | Feb 2019 | 2,499 | amazon.com | |
12. | Sony A7 III | .. | + + | 4.5/5 | 89/100 | 5/5 | 5/5 | Feb 2018 | 1,999 | amazon.com | |
13. | Sony A7S II | 5/5 | + | .. | .. | 4.5/5 | 5/5 | Sep 2015 | 2,999 | ebay.com | |
14. | Sony A9 | 5/5 | + + | 4.8/5 | 89/100 | 5/5 | 5/5 | Apr 2017 | 4,499 | ebay.com | |
15. | Sony A99 | 5/5 | .. | .. | 84/100 | 4.5/5 | 4.5/5 | Sep 2012 | 2,799 | ebay.com | |
16. | Sony A99 II | .. | .. | 4.5/5 | 85/100 | 4.5/5 | 4.5/5 | Sep 2016 | 3,199 | ebay.com | |
17. | Sony A850 | 3/5 | .. | .. | 75/100 | .. | 4.5/5 | Aug 2009 | 1,999 | ebay.com | |
Note: (+ +) 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.
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.
- Canon 70D vs Sony A900
- Canon 760D vs Olympus E-M1
- Fujifilm X-A2 vs Sony A900
- Fujifilm X-Pro2 vs Olympus E-M1
- Leica Digilux 3 vs Olympus E-M1
- Leica M Typ 240 vs Sony A900
- Leica S Typ 007 vs Sony A900
- Nikon D50 vs Sony A900
- Olympus E-M1 vs Olympus E-M5 II
- Olympus E-M1 vs Sony HX80
- Olympus E-M1 vs Sony NEX-7
- Olympus E-M5 vs Sony A900
Specifications: Sony A900 vs Olympus E-M1
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 | Sony A900 | Olympus E-M1 |
---|---|---|
Camera Type | Digital single lens reflex | Mirrorless system camera |
Camera Lens | Sony A mount lenses | Micro Four Thirds lenses |
Launch Date | September 2008 | September 2013 |
Launch Price | USD 2,999 | USD 1,399 |
Sensor Specs | Sony A900 | Olympus E-M1 |
Sensor Technology | CMOS | CMOS |
Sensor Format | Full Frame Sensor | Four Thirds Sensor |
Sensor Size | 35.9 x 24.0 mm | 17.3 x 13.0 mm |
Sensor Area | 861.6 mm2 | 224.9 mm2 |
Sensor Diagonal | 43.2 mm | 21.6 mm |
Crop Factor | 1.0x | 2.0x |
Sensor Resolution | 24.4 Megapixels | 15.9 Megapixels |
Image Resolution | 6048 x 4032 pixels | 4608 x 3456 pixels |
Pixel Pitch | 5.94 μm | 3.76 μm |
Pixel Density | 2.83 MP/cm2 | 7.08 MP/cm2 |
Moiré control | Anti-Alias filter | no AA filter |
Movie Capability | no Video | 1080/30p Video |
ISO Setting | 200 - 3,200 ISO | 200 - 25,600 ISO |
ISO Boost | 100 - 6,400 ISO | 100 - 25,600 ISO |
Image Processor | BIONZ | TruePIC VII |
DXO Sensor Quality (score) | 79 | 73 |
DXO Color Depth (bits) | 23.7 | 23.0 |
DXO Dynamic Range (EV) | 12.3 | 12.7 |
DXO Low Light (ISO) | 1431 | 757 |
Screen Specs | Sony A900 | Olympus E-M1 |
Viewfinder Type | Optical viewfinder | Electronic viewfinder |
Viewfinder Field of View | 100% | 100% |
Viewfinder Magnification | 0.74x | 0.74x |
Viewfinder Resolution | 2360k dots | |
Top-Level Screen | Control Panel | no Top Display |
LCD Framing | Live View | |
Rear LCD Size | 3.0inch | 3.0inch |
LCD Resolution | 922k dots | 1037k dots |
LCD Attachment | Fixed screen | Tilting screen |
Touch Input | no Touchscreen | Touchscreen |
Shooting Specs | Sony A900 | Olympus E-M1 |
Focus System | Phase-detect AF | On-Sensor Phase-detect |
Manual Focusing Aid | no Peaking Feature | Focus Peaking |
Max Shutter Speed (mechanical) | 1/8000s | 1/8000s |
Continuous Shooting | 5 shutter flaps/s | 10 shutter flaps/s |
Electronic Shutter | no E-Shutter | YES |
Time-Lapse Photography | no Intervalometer | Intervalometer built-in |
Image Stabilization | In-body stabilization | In-body stabilization |
Fill Flash | no On-Board Flash | no On-Board Flash |
Storage Medium | CF or MS cards | SDXC cards |
Single or Dual Card Slots | Dual card slots | Single card slot |
Connectivity Specs | Sony A900 | Olympus E-M1 |
External Flash | Hotshoe | Hotshoe |
Studio Flash | PC Sync socket | PC Sync socket |
USB Connector | USB 2.0 | USB 2.0 |
HDMI Port | mini HDMI | micro HDMI |
Microphone Port | no MIC socket | External MIC port |
Wifi Support | no Wifi | Wifi built-in |
Body Specs | Sony A900 | Olympus E-M1 |
Environmental Sealing | Weathersealed body | Weathersealed body |
Battery Type | Sony NP-FM500H | Olympus BLN-1 |
Battery Life (CIPA) | 880 shots per charge | 350 shots per charge |
Body Dimensions |
156 x 117 x 82 mm (6.1 x 4.6 x 3.2 in) |
130 x 94 x 63 mm (5.1 x 3.7 x 2.5 in) |
Camera Weight | 895 g (31.6 oz) | 497 g (17.5 oz) |
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