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Olympus E-1 vs Sony A9 III

The Olympus E-1 and the Sony Alpha A9 III are two professional cameras that were announced, respectively, in June 2003 and November 2023. The E-1 is a DSLR, while the A9 III is a mirrorless interchangeable lens camera. The cameras are based on a Four Thirds (E-1) and a full frame (A9 III) 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 A9 III
Olympus E-1   Sony A9 III
Digital single lens reflex Mirrorless system camera
Four Thirds lenses Sony E mount lenses
4.9 MP – Four Thirds sensor 24 MP – Full Frame sensor
no Video 4K/120p Video
ISO 100-800 (100 - 3,200) ISO 250-25,600 (125 - 51,200)
Optical viewfinder Electronic viewfinder (9440k dots)
1.8" LCD – 134k dots 3.2" LCD – 2100k dots
Fixed screen (not touch-sensitive) Fully flexible touchscreen
3 shutter flaps per second 120 shutter flaps per second
Lens stabilization onlyIn-body stabilization
Weathersealed bodyWeathersealed body
750 shots per battery charge530 shots per battery charge
141 x 104 x 81 mm, 738 g 136 x 97 x 83 mm, 702 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Olympus E-1 and the Sony Alpha A9 III? 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.

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Body comparison

The physical size and weight of the Olympus E-1 and the Sony A9 III are illustrated in the side-by-side display below. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All size dimensions are rounded to the nearest millimeter.

Size Olympus E-1 vs Sony A9 III
Compare E-1 versus A9 III top
Comparison E-1 or A9 III rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A9 III is notably smaller (10 percent) than the Olympus E-1. Moreover, the A9 III is markedly lighter (5 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 (A9 III). Mirrorless cameras, such as the A9 III, 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 Olympus BLM-1 battery, while the A9 III can take 530 images on a single charge of its Sony NP-FZ100 power pack. The power pack in the A9 III can be charged via the USB port, which can be very convenient when travelling.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. If you want to switch the focus of the display and review another camera pair, you can move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.

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Body Specifications
  empty 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 1,699ebay.com
2.
 
Sony A9 III 136 mm 97 mm 83 mm 702 g 530 Y Nov 2023 5,999 amazon.com
3.
 
Canon 6D Mark II 144 mm 111 mm 75 mm 765 g 1200 Y Jun 2017 1,999 amazon.com
4.
 
Canon 7D 148 mm 111 mm 74 mm 860 g 800 Y Sep 2009 1,699ebay.com
5.
 
Leica Digilux 3 146 mm 87 mm 77 mm 606 g 750 n Sep 2006 1,499ebay.com
6.
 
Nikon D500 147 mm 115 mm 81 mm 860 g 1240 Y Jan 2016 1,999ebay.com
7.
 
Nikon D610 141 mm 113 mm 82 mm 850 g 900 Y Oct 2013 1,999ebay.com
8.
 
Nikon D7000 132 mm 105 mm 77 mm 780 g 1050 Y Sep 2010 1,499ebay.com
9.
 
Olympus E-3 142 mm 116 mm 75 mm 876 g 750 Y Oct 2007 1,699ebay.com
10.
 
Olympus E-5 142 mm 117 mm 75 mm 873 g 750 Y Sep 2010 1,699ebay.com
11.
 
Olympus E-300 147 mm 85 mm 64 mm 624 g 750 n Sep 2004 799ebay.com
12.
 
Olympus E-330 140 mm 87 mm 72 mm 637 g 750 n Jan 2006 999ebay.com
13.
 
Sony A1 129 mm 97 mm 81 mm 737 g 530 Y Jan 2021 6,499 amazon.com
14.
 
Sony A7 II 127 mm 96 mm 60 mm 599 g 350 Y Nov 2014 1,999ebay.com
15.
 
Sony A7 III 127 mm 96 mm 74 mm 650 g 610 Y Feb 2018 1,999 amazon.com
16.
 
Sony A9 127 mm 96 mm 63 mm 673 g 650 Y Apr 2017 4,499ebay.com
17.
 
Sony A9 II 129 mm 96 mm 76 mm 678 g 690 Y Oct 2019 4,499 amazon.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-1 was launched at a markedly lower price (by 72 percent) than the A9 III, which puts it into a different market segment. Normally, street prices remain initially close to the MSRP, but after a couple of months, the first discounts appear. 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.

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. 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. Moreover, a large sensor camera will give the photographer more control over depth-of-field in the image and, thus, the ability to better isolate a subject from the background. On the downside, larger sensors are more costly to manufacture and tend to 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 A9 III a full frame sensor. The sensor area in the A9 III is 276 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 A9 III offers a 3:2 aspect.

Olympus E-1 and Sony A9 III sensor measures

With 24MP, the A9 III offers a higher resolution than the E-1 (4.9MP), but the A9 III has smaller individual pixels (pixel pitch of 5.94μm versus 6.78μm for the E-1). Yet, the A9 III is a much more recent model (by 20 years and 4 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 A9 III implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A9 III 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 A9 III has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

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 A9 III are ISO 250 to ISO 25600, with the possibility to increase the ISO range to 125-51200.

In terms of underlying technology, the E-1 is build around a CCD sensor, while the A9 III uses a Stacked CMOS imager. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.

E-1 versus A9 III 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 following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.

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Sensor Characteristics
  empty 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 1920none20.09.7-14544
2.
 
Sony A9 III Full Frame 24.0 6000 40004K/120p25.414.7324396
3.
 
Canon 6D Mark II Full Frame 26.0 6240 41601080/60p24.411.9286285
4.
 
Canon 7D APS-C 17.9 5184 34561080/30p22.011.785466
5.
 
Leica Digilux 3 Four Thirds 7.4 3136 2352none21.010.612753
6.
 
Nikon D500 APS-C 20.7 5568 37124K/30p24.014.0132483
7.
 
Nikon D610 Full Frame 24.2 6016 40161080/30p25.114.4292594
8.
 
Nikon D7000 APS-C 16.1 4928 32641080/24p23.513.9116780
9.
 
Olympus E-3 Four Thirds 10.0 3648 2736none21.610.557156
10.
 
Olympus E-5 Four Thirds 12.2 4032 3024720/30p21.610.551956
11.
 
Olympus E-300 Four Thirds 8.0 3264 2448none20.410.1-4048
12.
 
Olympus E-330 Four Thirds 7.4 3136 2352none20.810.47352
13.
 
Sony A1 Full Frame 49.8 8640 57608k/30p25.914.5316398
14.
 
Sony A7 II Full Frame 24.0 6000 40001080/60p24.913.6244990
15.
 
Sony A7 III Full Frame 24.0 6000 40004K/30p25.014.7373096
16.
 
Sony A9 Full Frame 24.0 6000 40004K/30p24.913.3351792
17.
 
Sony A9 II Full Frame 24.0 6000 40004K/30p25.014.0343493
Note: DXO values in italics represent estimates based on sensor size and age.

Many modern cameras are not only capable of taking still images, but can also record movies. The A9 III indeed provides for movie recording, while the E-1 does not. The highest resolution format that the A9 III can use is 4K/120p.

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Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. For example, the A9 III has an electronic viewfinder (9440k 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 A9 III has a higher magnification than the one of the E-1 (0.9x vs 0.48x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The adjacent table lists some of the other core features of the Olympus E-1 and Sony A9 III along with similar information for a selection of comparators.

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Core Features
  empty 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.
 
Olympus E-1optical Y1.8 / 134 fixed n 1/4000s 3.0/s n n
2.
 
Sony A9 III9440 n3.2 / 2100 full-flex Y 1/80000s 120.0/s n Y
3.
 
Canon 6D Mark IIoptical Y3.0 / 1040 swivel Y 1/4000s 6.5/s n n
4.
 
Canon 7Doptical Y3.0 / 920 fixed n 1/8000s 8.0/s Y n
5.
 
Leica Digilux 3optical n2.5 / 207 fixed n 1/4000s 3.0/s Y n
6.
 
Nikon D500optical Y3.2 / 2359 tilting Y 1/8000s 10.0/s n n
7.
 
Nikon D610optical Y3.2 / 921 fixed n 1/4000s 6.0/s Y n
8.
 
Nikon D7000optical Y3.0 / 921 fixed n 1/8000s 6.0/s Y n
9.
 
Olympus E-3optical Y2.5 / 230 swivel n 1/8000s 5.0/s Y Y
10.
 
Olympus E-5optical Y3.0 / 920 swivel n 1/8000s 5.0/s Y Y
11.
 
Olympus E-300optical n1.8 / 134 fixed n 1/4000s 2.5/s Y n
12.
 
Olympus E-330optical n2.5 / 215 tilting n 1/4000s 3.0/s Y n
13.
 
Sony A19437 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
14.
 
Sony A7 II2400 n3.0 / 1230 tilting n 1/8000s 5.0/s n Y
15.
 
Sony A7 III2359 n3.0 / 922 tilting Y 1/8000s 10.0/s n Y
16.
 
Sony A93686 n3.0 / 1440 tilting Y 1/8000s 20.0/s n Y
17.
 
Sony A9 II3686 n3.0 / 1440 tilting Y 1/8000s 20.0/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 E-1, but is missing on the A9 III 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 A9 III 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 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 A9 III 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 Sony A9 III 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 E-1 writes its imaging data to Compact Flash or xD Picture cards, while the A9 III uses CFexpress (type A) or SDXC cards. Both cameras feature dual card slots, which can be very useful in case a memory card fails.

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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 A9 III and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
  empty Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Olympus E-1Y- / ----2.0---
2.
 
Sony A9 IIIYstereo / monoYYfull3.2Y-Y
3.
 
Canon 6D Mark IIYstereo / monoY-mini2.0YYY
4.
 
Canon 7DYmono / -Y-mini2.0---
5.
 
Leica Digilux 3Ystereo / mono---2.0---
6.
 
Nikon D500Ystereo / monoYYmini3.0YYY
7.
 
Nikon D610Ymono / monoYYmini2.0---
8.
 
Nikon D7000Ymono / monoY-mini2.0---
9.
 
Olympus E-3Y- / ----2.0---
10.
 
Olympus E-5Ystereo / ---mini2.0---
11.
 
Olympus E-300Y- / ----2.0---
12.
 
Olympus E-330Y- / ----2.0---
13.
 
Sony A1Ystereo / monoYYfull3.2Y-Y
14.
 
Sony A7 IIYstereo / monoYYmicro2.0YY-
15.
 
Sony A7 IIIYstereo / monoYYmicro3.1YYY
16.
 
Sony A9Ystereo / monoYYmicro2.0YYY
17.
 
Sony A9 IIYstereo / monoYYmicro3.1YYY

It is notable that the A9 III 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 A9 III 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 features and operation of the E-1 and A9 III can be found, respectively, in the Olympus E-1 Manual (free pdf) or the online Sony A9 III Manual.

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Review summary

So what is the bottom line? Is the Olympus E-1 better than the Sony A9 III or vice versa? The listing below highlights the relative strengths of the two models.

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Advantages of 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 530) on a single battery charge.
  • More affordable: Was introduced into a lower priced category (72 percent cheaper at launch).
  • More heavily discounted: Has been available for much longer (launched in June 2003).

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Arguments in favor of the Sony Alpha A9 III:

  • 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 4K/120p 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.
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.9x vs 0.48x).
  • Larger screen: Has a bigger rear LCD (3.2" vs 1.8") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (2100k vs 134k dots).
  • More flexible LCD: Has a full-flex screen for odd-angle shots in portrait or landscape orientation.
  • Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • Faster shutter: Has higher mechanical shutter speed (1/80000s vs 1/4000s) to freeze action.
  • Faster burst: Shoots at higher frequency (120 vs 3 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.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
  • More legacy lens friendly: Can use many non-native lenses via adapters.
  • Faster data transfer: Supports a more advanced USB protocol (3.2 vs 2.0).
  • Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • More modern: Reflects 20 years and 4 months of technical progress since the E-1 launch.

If the count of relative strengths (bullet points above) is taken as a measure, the A9 III is the clear winner of the contest (25 : 5 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 wedding photographer will view the differences between cameras in a way that diverges from the perspective of a travel photog, and a person interested in cityscapes has distinct needs from a macro shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

E-1 05:25 A9 III

How about other alternatives? Do the specifications of the Olympus E-1 and the Sony A9 III 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 remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the E-1 or the A9 III. 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.

Expert reviews

This is why hands-on reviews by experts are important. 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.

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Expert Camera Reviews
  empty  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Olympus E-1......+o.. Jun 2003 1,699ebay.com
2.
 
Sony A9 III4.5/5.......... Nov 2023 5,999 amazon.com
3.
 
Canon 6D Mark II4/5+4/580/1004.5/54/5 Jun 2017 1,999 amazon.com
4.
 
Canon 7D5/5+ +..84/1004.5/54.5/5 Sep 2009 1,699ebay.com
5.
 
Leica Digilux 3............ Sep 2006 1,499ebay.com
6.
 
Nikon D5005/5+ +4.7/591/1004.5/55/5 Jan 2016 1,999ebay.com
7.
 
Nikon D6104/5+ +..87/1004.5/54.5/5 Oct 2013 1,999ebay.com
8.
 
Nikon D70004/5....80/1004.5/54.5/5 Sep 2010 1,499ebay.com
9.
 
Olympus E-3..88/100..+ +o4/5 Oct 2007 1,699ebay.com
10.
 
Olympus E-54/5....75/1004/54.5/5 Sep 2010 1,699ebay.com
11.
 
Olympus E-300......+o4.5/5 Sep 2004 799ebay.com
12.
 
Olympus E-330......+o.. Jan 2006 999ebay.com
13.
 
Sony A15/5o4.5/593/1004.5/55/5 Jan 2021 6,499 amazon.com
14.
 
Sony A7 II5/5+4/582/1004.5/55/5 Nov 2014 1,999ebay.com
15.
 
Sony A7 III..+ +4.5/589/1005/55/5 Feb 2018 1,999 amazon.com
16.
 
Sony A95/5+ +4.8/589/1005/55/5 Apr 2017 4,499ebay.com
17.
 
Sony A9 II....5/590/1005/55/5 Oct 2019 4,499 amazon.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

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. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

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Other camera comparisons

Did this review help to inform your camera decision process? If you would like to see a different side-by-side camera review, just use the search menu below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Olympus E-1 vs Sony A9 III

    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 A9 III
    Camera Type Digital single lens reflex Mirrorless system camera
    Camera Lens Four Thirds lenses Sony E mount lenses
    Launch Date June 2003 November 2023
    Launch Price USD 1,699 USD 5,999
    Sensor Specs Olympus E-1 Sony A9 III
    Sensor Technology CCD Stacked CMOS
    Sensor Format Four Thirds Sensor Full Frame Sensor
    Sensor Size 17.3 x 13.0 mm 35.6 x 23.8 mm
    Sensor Area 224.9 mm2 847.28 mm2
    Sensor Diagonal 21.6 mm 42.8 mm
    Crop Factor 2.0x 1.0x
    Sensor Resolution 4.9 Megapixels 24 Megapixels
    Image Resolution 2560 x 1920 pixels 6000 x 4000 pixels
    Pixel Pitch 6.78 μm 5.94 μm
    Pixel Density 2.19 MP/cm2 2.83 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability no Video 4K/120p Video
    ISO Setting 100 - 800 ISO 250 - 25,600 ISO
    ISO Boost 100 - 3,200 ISO 125 - 51,200 ISO
    Image Processor TruePic Dual BIONZ XR
    Screen Specs Olympus E-1 Sony A9 III
    Viewfinder Type Optical viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.48x 0.9x
    Viewfinder Resolution 9440k dots
    Top-Level Screen Control Panel no Top Display
    LCD Framing Live View
    Rear LCD Size 1.8inch 3.2inch
    LCD Resolution 134k dots 2100k dots
    LCD Attachment Fixed screen Fully flexible screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Olympus E-1 Sony A9 III
    Focus System Phase-detect AF On-Sensor Phase-detect
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/4000s 1/80000s
    Continuous Shooting 3 shutter flaps/s 120 shutter flaps/s
    Electronic Shutterno E-Shutterup to 1/80000s
    Time-Lapse Photographyno IntervalometerIntervalometer built-in
    Image StabilizationLens stabilization onlyIn-body stabilization
    Fill Flash no On-Board Flash no On-Board Flash
    Storage Medium CF or XD cards CFexA or SDXC cards
    Single or Dual Card Slots Dual card slots Dual card slots
    Connectivity Specs Olympus E-1 Sony A9 III
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket PC Sync socket
    USB Connector USB 2.0 USB 3.2
    HDMI Port no HDMI full HDMI
    Microphone Port no MIC socket External MIC port
    Headphone Socket no Headphone port Headphone port
    Wifi Support no Wifi Wifi built-in
    Bluetooth Support no Bluetooth Bluetooth built-in
    Body Specs Olympus E-1 Sony A9 III
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type Olympus BLM-1 Sony NP-FZ100
    Battery Life (CIPA)750 shots per charge530 shots per charge
    In-Camera Charging no USB charging USB charging
    Body Dimensions 141 x 104 x 81 mm
    (5.6 x 4.1 x 3.2 in)
    136 x 97 x 83 mm
    (5.4 x 3.8 x 3.3 in)
    Camera Weight 738 g (26.0 oz) 702 g (24.8 oz)
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    Check E-1 offers at
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    Check A9 III price at
    amazon.com

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