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Olympus E-300 vs Sony A7R II

The Olympus Evolt E-300 and the Sony Alpha A7R II are two digital cameras that were announced, respectively, in September 2004 and June 2015. The E-300 is a DSLR, while the A7R II is a mirrorless interchangeable lens camera. The cameras are based on a Four Thirds (E-300) and a full frame (A7R II) sensor. The Olympus has a resolution of 8 megapixels, whereas the Sony provides 42.2 MP.

Below is an overview of the main specs of the two cameras as a starting point for the comparison.

Headline Specifications
Olympus E-300
versus
Sony A7R II
Olympus E-300   Sony A7R II
Digital single lens reflex Mirrorless system camera
Four Thirds lenses Sony E mount lenses
8 MP – Four Thirds sensor 42.2 MP – Full Frame sensor
no Video 4K/30p Video
ISO 100-400 (100 - 1,600) ISO 100-25,600 (50 - 102,400)
Optical viewfinder Electronic viewfinder (2400k dots)
1.8" LCD – 134k dots 3.0" LCD – 1229k dots
Fixed screen (not touch-sensitive) Tilting screen (no touchscreen)
2.5 shutter flaps per second 5 shutter flaps per second
Lens stabilization onlyIn-body stabilization
not weather sealedWeathersealed body
750 shots per battery charge290 shots per battery charge
147 x 85 x 64 mm, 624 g 127 x 96 x 60 mm, 625 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Olympus Evolt E-300 and the Sony Alpha A7R II? 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 side-by-side display below illustrates the physical size and weight of the Olympus E-300 and the Sony A7R II. 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 size dimensions are rounded to the nearest millimeter.

Size Olympus E-300 vs Sony A7R II
Compare E-300 versus A7R II top
Comparison E-300 or A7R II rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A7R II is somewhat smaller (2 percent) than the Olympus E-300. However, the A7R II is slightly heavier (0 percent) than the E-300. It is noteworthy in this context that the A7R II is splash and dust-proof, while the E-300 does not feature any corresponding weather-sealing.

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-300) and the Sony FE Lens Catalog (A7R II). Mirrorless cameras, such as the A7R II, 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-300 gets 750 shots out of its Olympus BLM-1 battery, while the A7R II can take 290 images on a single charge of its Sony NP-FW50 power pack. The power pack in the A7R II can be charged via the USB port, which can be very convenient when travelling.

The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. If you would like to visualize and compare a different camera combination, you can navigate to the CAM-parator app and make your selection from a broad list of cameras 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
Street
Price
1.
 
Olympus E-300 147 mm 85 mm 64 mm 624 g 750 n Sep 2004 EUR 799ebay.com
2.
 
Sony A7R II 127 mm 96 mm 60 mm 625 g 290 Y Jun 2015 EUR 3 499ebay.com
3.
 
Canon 350D 127 mm 94 mm 64 mm 540 g 400 n Feb 2005 EUR 899ebay.com
4.
 
Leica Digilux 3 146 mm 87 mm 77 mm 606 g 750 n Sep 2006 EUR 1 499ebay.com
5.
 
Olympus E-330 140 mm 87 mm 72 mm 637 g 750 n Jan 2006 EUR 999ebay.com
6.
 
Olympus E-400 130 mm 91 mm 53 mm 435 g 500 n Sep 2006 EUR 699ebay.com
7.
 
Olympus E-410 130 mm 91 mm 53 mm 435 g 500 n Mar 2007 EUR 699ebay.com
8.
 
Olympus E-500 130 mm 95 mm 66 mm 479 g 750 n Sep 2005 EUR 599ebay.com
9.
 
Olympus E-510 136 mm 92 mm 68 mm 538 g 750 n Mar 2007 EUR 799ebay.com
10.
 
Olympus E-520 136 mm 92 mm 68 mm 535 g 750 n May 2008 EUR 599ebay.com
11.
 
Olympus E-620 130 mm 94 mm 60 mm 521 g 500 n Feb 2009 EUR 599ebay.com
12.
 
Panasonic L1 146 mm 87 mm 64 mm 606 g 750 n Feb 2006 EUR 999ebay.com
13.
 
Sony A7 II 127 mm 96 mm 60 mm 599 g 350 Y Nov 2014 EUR 2 099ebay.com
14.
 
Sony A7R 127 mm 94 mm 48 mm 465 g 340 Y Oct 2013 EUR 2 099ebay.com
15.
 
Sony A7R III 127 mm 96 mm 74 mm 650 g 650 Y Oct 2017 EUR 3 499ebay.com
16.
 
Sony A7R IIIA 127 mm 96 mm 74 mm 650 g 650 Y Apr 2021 EUR 3 499 amazon.com
17.
 
Sony A7S II 127 mm 96 mm 60 mm 627 g 370 Y Sep 2015 EUR 3 399ebay.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 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-300 was launched at a markedly lower price (by 75 percent) than the A7R II, 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 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 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-300 features a Four Thirds sensor and the Sony A7R II a full frame sensor. The sensor area in the A7R II is 283 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-300 has a native 4:3 aspect ratio, while the one in the A7R II offers a 3:2 aspect.

Olympus E-300 and Sony A7R II sensor measures

With 42.2MP, the A7R II offers a higher resolution than the E-300 (8MP), but the A7R II has smaller individual pixels (pixel pitch of 4.52μm versus 5.30μm for the E-300). Yet, the A7R II is a much more recent model (by 10 years and 8 months) than the E-300, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that the A7R II has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Sony A7R II implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A7R II for good quality output (200 dots per inch) amounts to 39.8 x 26.5 inches or 101 x 67.4 cm, for very good quality (250 dpi) 31.8 x 21.2 inches or 80.8 x 53.9 cm, and for excellent quality (300 dpi) 26.5 x 17.7 inches or 67.3 x 44.9 cm. The corresponding values for the Olympus E-300 are 16.3 x 12.2 inches or 41.5 x 31.1 cm for good quality, 13.1 x 9.8 inches or 33.2 x 24.9 cm for very good quality, and 10.9 x 8.2 inches or 27.6 x 20.7 cm for excellent quality prints.

The A7R II has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Olympus Evolt E-300 has a native sensitivity range from ISO 100 to ISO 400, which can be extended to ISO 100-1600. The corresponding ISO settings for the Sony Alpha A7R II are ISO 100 to ISO 25600, with the possibility to increase the ISO range to 50-102400.

In terms of underlying technology, the E-300 is build around a CCD sensor, while the A7R II uses a BSI-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-300 versus A7R II MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. This service determines an overall sensor rating, as well as sub-scores for low-light sensitivity ("DXO Sports"), dynamic range ("DXO Landscape"), and color depth ("DXO Portrait"). The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.

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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-300 Four Thirds 8.0 3264 2448none20.410.1-4048
2.
 
Sony A7R II Full Frame 42.2 7952 53044K/30p26.013.9343498
3.
 
Canon 350D APS-C 8.0 3456 2304none21.810.863760
4.
 
Leica Digilux 3 Four Thirds 7.4 3136 2352none21.010.612753
5.
 
Olympus E-330 Four Thirds 7.4 3136 2352none20.810.47352
6.
 
Olympus E-400 Four Thirds 10.0 3648 2736none21.010.612753
7.
 
Olympus E-410 Four Thirds 10.0 3648 2736none21.110.049451
8.
 
Olympus E-500 Four Thirds 8.0 3264 2448none20.710.34551
9.
 
Olympus E-510 Four Thirds 10.0 3648 2736none21.210.044252
10.
 
Olympus E-520 Four Thirds 10.0 3648 2736none21.410.454855
11.
 
Olympus E-620 Four Thirds 12.2 4032 3024none21.310.353655
12.
 
Panasonic L1 Four Thirds 7.4 3136 2352none20.810.48052
13.
 
Sony A7 II Full Frame 24.0 6000 40001080/60p24.913.6244990
14.
 
Sony A7R Full Frame 36.2 7360 49121080/60p25.614.1274695
15.
 
Sony A7R III Full Frame 42.2 7952 53044K/30p26.014.73523100
16.
 
Sony A7R IIIA Full Frame 42.2 7952 53044K/30p26.014.73523100
17.
 
Sony A7S II Full Frame 12.0 4240 28324K/30p23.613.3299385
Note: DXO values in italics represent estimates based on sensor size and age.

Many modern cameras cannot only take still pictures, but also record videos. The A7R II indeed provides for movie recording, while the E-300 does not. The highest resolution format that the A7R II can use is 4K/30p.

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Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the A7R II has an electronic viewfinder (2400k dots), while the E-300 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 viewfinder in the A7R II offers a wider field of view (100%) than the one in the E-300 (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the A7R II has a higher magnification (0.78x vs 0.5x), 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-300 and Sony A7R II 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-300optical n1.8 / 134 fixed n 1/4000s 2.5/s Y n
2.
 
Sony A7R II2400 n3.0 / 1229 tilting n 1/8000s 5.0/s n Y
3.
 
Canon 350Doptical n1.8 / 115 fixed n 1/4000s 3.0/s Y n
4.
 
Leica Digilux 3optical n2.5 / 207 fixed n 1/4000s 3.0/s Y n
5.
 
Olympus E-330optical n2.5 / 215 tilting n 1/4000s 3.0/s Y n
6.
 
Olympus E-400optical n2.5 / 215 fixed n 1/4000s 3.0/s Y n
7.
 
Olympus E-410optical n2.5 / 215 fixed n 1/4000s 3.0/s Y n
8.
 
Olympus E-500optical n2.5 / 215 fixed n 1/4000s 2.5/s Y n
9.
 
Olympus E-510optical n2.5 / 215 fixed n 1/4000s 3.0/s Y Y
10.
 
Olympus E-520optical n2.7 / 215 fixed n 1/4000s 3.5/s Y Y
11.
 
Olympus E-620optical n2.7 / 230 swivel n 1/4000s 4.0/s Y Y
12.
 
Panasonic L1optical n2.5 / 207 fixed n 1/4000s 3.0/s Y n
13.
 
Sony A7 II2400 n3.0 / 1230 tilting n 1/8000s 5.0/s n Y
14.
 
Sony A7R2400 n3.0 / 1230 tilting n 1/8000s 4.0/s n n
15.
 
Sony A7R III3686 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
16.
 
Sony A7R IIIA3686 n3.0 / 2340 tilting Y 1/8000s 10.0/s n Y
17.
 
Sony A7S II2400 n3.0 / 1229 tilting n 1/8000s 5.0/s n Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One difference between the cameras concerns the presence of an on-board flash. The E-300 has one, while the A7R II does not. While the built-in flash of the E-300 is not very powerful, it can at times be useful as a fill-in light.

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 A7R II 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-300 writes its imaging data to Compact Flash or xD Picture cards, while the A7R II uses SDXC or Memory Stick PRO Duo cards. The E-300 features dual card slots, which can be very useful in case a memory card fails. In contrast, the A7R II only has one slot.

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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 Evolt E-300 and Sony Alpha A7R II 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-300Y- / ----2.0---
2.
 
Sony A7R IIYstereo / monoYYmicro2.0YY-
3.
 
Canon 350DY- / ----2.0---
4.
 
Leica Digilux 3Ystereo / mono---2.0---
5.
 
Olympus E-330Y- / ----2.0---
6.
 
Olympus E-400Y- / ----2.0---
7.
 
Olympus E-410Y- / ----2.0---
8.
 
Olympus E-500Y- / ----2.0---
9.
 
Olympus E-510Y- / ----2.0---
10.
 
Olympus E-520Y- / ----2.0---
11.
 
Olympus E-620Y- / ----2.0---
12.
 
Panasonic L1Y- / ----2.0---
13.
 
Sony A7 IIYstereo / monoYYmicro2.0YY-
14.
 
Sony A7RYstereo / monoYYmicro2.0YY-
15.
 
Sony A7R IIIYstereo / monoYYmicro3.1YYY
16.
 
Sony A7R IIIAYstereo / monoYYmicro3.2YYY
17.
 
Sony A7S IIYstereo / monoYYmicro2.0YY-

It is notable that the A7R II offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the E-300 does not provide wifi capability.

Both the E-300 and the A7R II have been discontinued, but can regularly be found used on ebay. The E-300 was replaced by the Olympus E-330, while the A7R II was followed by the Sony A7R III. Further information on the features and operation of the E-300 and A7R II can be found, respectively, in the Olympus E-300 Manual (free pdf) or the online Sony A7R II Manual.

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Review summary

So what is the bottom line? Is the Olympus E-300 better than the Sony A7R II or vice versa? A synthesis of the relative strong points of each of the models is listed below.

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Advantages of the Olympus Evolt E-300:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • Longer lasting: Can take more shots (750 versus 290) on a single battery charge.
  • Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
  • 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 (75 percent cheaper at launch).
  • More heavily discounted: Has been available for much longer (launched in September 2004).

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Arguments in favor of the Sony Alpha A7R II:

  • More detail: Has more megapixels (42.2 vs 8MP), which boosts linear resolution by 134%.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • 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/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 complete view: Has a viewfinder with a larger field of view (100% vs 95%).
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.78x vs 0.5x).
  • Larger screen: Has a bigger rear LCD (3.0" vs 1.8") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (1229k vs 134k dots).
  • More flexible LCD: Has 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 2.5 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
  • 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.
  • 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 8 months of technical progress since the E-300 launch.

If the count of individual advantages (bullet points above) is taken as a guide, the A7R II is the clear winner of the contest (24 : 7 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 when reflecting and deciding on a new camera. 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-300 07:24 A7R II

How about other alternatives? Do the specifications of the Olympus E-300 and the Sony A7R II 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 remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the E-300 or the A7R II. At times, user reviews, such as those published at amazon, address these issues in a useful manner, but such feedback is on many occasions incomplete, inconsistent, and unreliable.

Expert reviews

This is why hands-on reviews by experts are important. The adjacent summary-table relays the overall verdicts of several of the most popular 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
Street
Price
1.
 
Olympus E-300......+o4.5/5 Sep 2004 EUR 799ebay.com
2.
 
Sony A7R II5/5+ +5/590/1005/55/5 Jun 2015 EUR 3 499ebay.com
3.
 
Canon 350D..80/100..+ +o.. Feb 2005 EUR 899ebay.com
4.
 
Leica Digilux 3............ Sep 2006 EUR 1 499ebay.com
5.
 
Olympus E-330......+o.. Jan 2006 EUR 999ebay.com
6.
 
Olympus E-400..85/100....4/54/5 Sep 2006 EUR 699ebay.com
7.
 
Olympus E-410..86/100..+ +4/54.5/5 Mar 2007 EUR 699ebay.com
8.
 
Olympus E-500..76/100..+ +.... Sep 2005 EUR 599ebay.com
9.
 
Olympus E-510..89/100..+ +3.5/54.5/5 Mar 2007 EUR 799ebay.com
10.
 
Olympus E-520..87/100..+ +4.5/54.5/5 May 2008 EUR 599ebay.com
11.
 
Olympus E-6203/588/100..72/1004.5/55/5 Feb 2009 EUR 599ebay.com
12.
 
Panasonic L1..85/100..+..3.5/5 Feb 2006 EUR 999ebay.com
13.
 
Sony A7 II5/5+4/582/1004.5/55/5 Nov 2014 EUR 2 099ebay.com
14.
 
Sony A7R5/5+ +..82/1004.5/55/5 Oct 2013 EUR 2 099ebay.com
15.
 
Sony A7R III..+ +4/590/1004.5/55/5 Oct 2017 EUR 3 499ebay.com
16.
 
Sony A7R IIIA..+ +4/590/1004.5/55/5 Apr 2021 EUR 3 499 amazon.com
17.
 
Sony A7S II5/5+....4.5/55/5 Sep 2015 EUR 3 399ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

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. Hence, a score should always be seen in the context of the camera's market launch date and its price, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

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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 use the search menu below. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.

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    Specifications: Olympus E-300 vs Sony A7R II

    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-300 Sony A7R II
    Camera Type Digital single lens reflex Mirrorless system camera
    Camera Lens Four Thirds lenses Sony E mount lenses
    Launch Date September 2004 June 2015
    Launch Price USD 799 USD 3,199
    Sensor Specs Olympus E-300 Sony A7R II
    Sensor Technology CCD BSI-CMOS
    Sensor Format Four Thirds Sensor Full Frame Sensor
    Sensor Size 17.3 x 13.0 mm 35.9 x 24.0 mm
    Sensor Area 224.9 mm2 861.6 mm2
    Sensor Diagonal 21.6 mm 43.2 mm
    Crop Factor 2.0x 1.0x
    Sensor Resolution 8 Megapixels 42.2 Megapixels
    Image Resolution 3264 x 2448 pixels 7952 x 5304 pixels
    Pixel Pitch 5.30 μm 4.52 μm
    Pixel Density 3.55 MP/cm2 4.90 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability no Video 4K/30p Video
    ISO Setting 100 - 400 ISO 100 - 25,600 ISO
    ISO Boost 100 - 1,600 ISO 50 - 102,400 ISO
    Image Processor TruePic BIONZ X
    DXO Sensor Quality (score) .. 98
    DXO Color Depth (bits) .. 26.0
    DXO Dynamic Range (EV) .. 13.9
    DXO Low Light (ISO) .. 3434
    Screen Specs Olympus E-300 Sony A7R II
    Viewfinder Type Optical viewfinder Electronic viewfinder
    Viewfinder Field of View 95% 100%
    Viewfinder Magnification 0.5x 0.78x
    Viewfinder Resolution 2400k dots
    LCD Framing Live View
    Rear LCD Size 1.8inch 3.0inch
    LCD Resolution 134k dots 1229k dots
    LCD Attachment Fixed screen Tilting screen
    Shooting Specs Olympus E-300 Sony A7R II
    Focus System Phase-detect AF On-Sensor Phase-detect
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/4000s 1/8000s
    Continuous Shooting 2.5 shutter flaps/s 5 shutter flaps/s
    Electronic Shutterno E-ShutterYES
    Image StabilizationLens stabilization onlyIn-body stabilization
    Fill Flash Built-in Flash no On-Board Flash
    Storage Medium CF or XD cards MS or SDXC cards
    Single or Dual Card Slots Dual card slots Single card slot
    Connectivity Specs Olympus E-300 Sony A7R II
    External Flash Hotshoe Hotshoe
    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-300 Sony A7R II
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type Olympus BLM-1 Sony NP-FW50
    Battery Life (CIPA)750 shots per charge290 shots per charge
    In-Camera Charging no USB charging USB charging
    Body Dimensions 147 x 85 x 64 mm
    (5.8 x 3.3 x 2.5 in)
    127 x 96 x 60 mm
    (5.0 x 3.8 x 2.4 in)
    Camera Weight 624 g (22.0 oz) 625 g (22.0 oz)
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    Check E-300 offers at
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    Check A7R II offers at
    ebay.com

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