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Olympus E-30 vs Sony NEX-7

The Olympus E-30 and the Sony Alpha NEX-7 are two enthusiast cameras that were revealed to the public, respectively, in November 2008 and August 2011. The E-30 is a DSLR, while the NEX-7 is a mirrorless interchangeable lens camera. The cameras are based on a Four Thirds (E-30) and an APS-C (NEX-7) sensor. The Olympus has a resolution of 12.2 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-30
versus
Sony NEX-7
Olympus E-30   Sony NEX-7
Digital single lens reflex Mirrorless system camera
Four Thirds lenses Sony E mount lenses
12.2 MP – Four Thirds sensor 24 MP – APS-C sensor
no Video 1080/60i Video
ISO 100-3,200 ISO 100-16,000
Optical viewfinder Electronic viewfinder (2359k dots)
2.7" LCD – 230k dots 3.0" LCD – 921k dots
Swivel screen (not touch-sensitive) Tilting screen (no touchscreen)
5 shutter flaps per second 10 shutter flaps per second
In-body stabilizationLens stabilization only
750 shots per battery charge430 shots per battery charge
142 x 108 x 75 mm, 701 g 120 x 67 x 43 mm, 400 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Olympus E-30 and the Sony Alpha NEX-7? 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-30 and the Sony NEX-7 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.

Size Olympus E-30 vs Sony NEX-7
Compare E-30 versus NEX-7 top
Comparison E-30 or NEX-7 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony NEX-7 is considerably smaller (48 percent) than the Olympus E-30. Moreover, the NEX-7 is substantially lighter (43 percent) than the E-30. In this context, it is worth noting that neither the E-30 nor the NEX-7 are weather-sealed.

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-30) and the Sony E-Mount Lens Catalog (NEX-7). Mirrorless cameras, such as the NEX-7, 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-30 gets 750 shots out of its Olympus BLM-1 battery, while the NEX-7 can take 430 images on a single charge of its Sony NP-FW50 power pack.

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, 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
Street
Price
1.
 
Olympus E-30 142 mm 108 mm 75 mm 701 g 750 n Nov 2008 US$ 1 299ebay.com
2.
 
Sony NEX-7 120 mm 67 mm 43 mm 400 g 430 n Aug 2011 US$ 1 349ebay.com
3.
 
Fujifilm X100 126 mm 75 mm 54 mm 445 g 300 n Sep 2010 US$ 1 199ebay.com
4.
 
Olympus E-3 142 mm 116 mm 75 mm 876 g 750 Y Oct 2007 US$ 1 699ebay.com
5.
 
Olympus E-410 130 mm 91 mm 53 mm 435 g 500 n Mar 2007 US$ 699ebay.com
6.
 
Olympus E-420 130 mm 91 mm 53 mm 440 g 500 n Mar 2008 US$ 599ebay.com
7.
 
Olympus E-450 130 mm 91 mm 53 mm 440 g 500 n Mar 2009 US$ 499ebay.com
8.
 
Olympus E-510 136 mm 92 mm 68 mm 538 g 750 n Mar 2007 US$ 799ebay.com
9.
 
Olympus E-520 136 mm 92 mm 68 mm 535 g 750 n May 2008 US$ 699ebay.com
10.
 
Olympus E-600 130 mm 94 mm 60 mm 535 g 500 n Aug 2009 US$ 449ebay.com
11.
 
Olympus E-620 130 mm 94 mm 60 mm 521 g 500 n Feb 2009 US$ 699ebay.com
12.
 
Olympus E-P1 121 mm 70 mm 36 mm 355 g 300 n Jun 2009 US$ 799ebay.com
13.
 
Olympus E-P2 121 mm 70 mm 36 mm 355 g 300 n Nov 2009 US$ 799ebay.com
14.
 
Sony A3000 128 mm 91 mm 85 mm 411 g 470 n Aug 2013 US$ 329ebay.com
15.
 
Sony A6000 120 mm 67 mm 45 mm 344 g 360 n Feb 2014 US$ 599ebay.com
16.
 
Sony A6400 120 mm 67 mm 50 mm 403 g 410 Y Jan 2019 US$ 899 amazon.com
17.
 
Sony RX1 113 mm 65 mm 70 mm 482 g 270 n Sep 2012 US$ 2 799ebay.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-30 was somewhat cheaper (by 4 percent) than the NEX-7 at launch, but both cameras fall into the same price category. 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. 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-30 features a Four Thirds sensor and the Sony NEX-7 an APS-C sensor. The sensor area in the NEX-7 is 62 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.0 and 1.5. The sensor in the E-30 has a native 4:3 aspect ratio, while the one in the NEX-7 offers a 3:2 aspect.

Olympus E-30 and Sony NEX-7 sensor measures

With 24MP, the NEX-7 offers a higher resolution than the E-30 (12.2MP), but the NEX-7 has smaller individual pixels (pixel pitch of 3.90μm versus 4.29μm for the E-30). Yet, the NEX-7 is a much more recent model (by 2 years and 9 months) than the E-30, 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 NEX-7 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the NEX-7 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-30 are 20.2 x 15.1 inches or 51.2 x 38.4 cm for good quality, 16.1 x 12.1 inches or 41 x 30.7 cm for very good quality, and 13.4 x 10.1 inches or 34.1 x 25.6 cm for excellent quality prints.

The Olympus E-30 has a native sensitivity range from ISO 100 to ISO 3200. The corresponding ISO settings for the Sony Alpha NEX-7 are ISO 100 to ISO 16000 (no boost).

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.

E-30 versus NEX-7 MP

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. Of the two cameras under consideration, the NEX-7 offers substantially better image quality than the E-30 (overall score 26 points higher). The advantage is based on 2.8 bits higher color depth, 3 EV in additional dynamic range, and 0.9 stops in additional low light sensitivity. 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-30 Four Thirds 12.2 4032 3024none21.310.453055
2.
 
Sony NEX-7 APS-C 24.0 6000 40001080/60i24.113.4101681
3.
 
Fujifilm X100 APS-C 12.2 4288 2848720/30p22.912.4100173
4.
 
Olympus E-3 Four Thirds 10.0 3648 2736none21.610.557156
5.
 
Olympus E-410 Four Thirds 10.0 3648 2736none21.110.049451
6.
 
Olympus E-420 Four Thirds 10.0 3648 2736none21.510.452756
7.
 
Olympus E-450 Four Thirds 10.0 3648 2736none21.510.551256
8.
 
Olympus E-510 Four Thirds 10.0 3648 2736none21.210.044252
9.
 
Olympus E-520 Four Thirds 10.0 3648 2736none21.410.454855
10.
 
Olympus E-600 Four Thirds 12.2 4032 3024none21.510.354155
11.
 
Olympus E-620 Four Thirds 12.2 4032 3024none21.310.353655
12.
 
Olympus E-P1 Four Thirds 12.2 4032 3024720/30p21.410.453655
13.
 
Olympus E-P2 Four Thirds 12.2 4032 3024720/30p21.510.450556
14.
 
Sony A3000 APS-C 19.8 5456 36321080/60i23.712.8106878
15.
 
Sony A6000 APS-C 24.0 6000 40001080/60p24.113.1134782
16.
 
Sony A6400 APS-C 24.0 6000 40004K/30p24.013.6143183
17.
 
Sony RX1 Full Frame 24.0 6000 40001080/60p25.114.3253493

Many modern cameras cannot only take still pictures, but also record videos. The NEX-7 indeed provides for movie recording, while the E-30 does not. The highest resolution format that the NEX-7 can use is 1080/60i.

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Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. For example, the NEX-7 has an electronic viewfinder (2359k dots), while the E-30 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 NEX-7 offers a wider field of view (100%) than the one in the E-30 (98%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the NEX-7 has a higher magnification (0.73x vs 0.51x), 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-30, the Sony NEX-7, and comparable cameras.

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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-30optical Y2.7 / 230 swivel n 1/8000s 5.0/s Y Y
2.
 
Sony NEX-72359 n3.0 / 921 tilting n 1/4000s 10.0/s Y n
3.
 
Fujifilm X1001440 n2.8 / 460 fixed n 1/4000s 5.0/s Y n
4.
 
Olympus E-3optical Y2.5 / 230 swivel n 1/8000s 5.0/s Y Y
5.
 
Olympus E-410optical n2.5 / 215 fixed n 1/4000s 3.0/s Y n
6.
 
Olympus E-420optical n2.7 / 215 fixed n 1/4000s 3.5/s Y n
7.
 
Olympus E-450optical n2.7 / 215 fixed n 1/4000s 3.5/s Y n
8.
 
Olympus E-510optical n2.5 / 215 fixed n 1/4000s 3.0/s Y Y
9.
 
Olympus E-520optical n2.7 / 215 fixed n 1/4000s 3.5/s Y Y
10.
 
Olympus E-600optical n2.7 / 230 swivel n 1/4000s 4.0/s Y Y
11.
 
Olympus E-620optical n2.7 / 230 swivel n 1/4000s 4.0/s Y Y
12.
 
Olympus E-P1none n3.0 / 230 fixed n 1/4000s 3.0/s n Y
13.
 
Olympus E-P2optional n3.0 / 230 fixed n 1/4000s 3.0/s n Y
14.
 
Sony A3000202 n3.0 / 230 fixed n 1/4000s 2.5/s Y n
15.
 
Sony A60001440 n3.0 / 922 tilting n 1/4000s 11.0/s Y n
16.
 
Sony A64002359 n3.0 / 922 tilting Y 1/4000s 11.0/s Y n
17.
 
Sony RX1optional n3.0 / 1229 fixed n 1/4000s 5.0/s Y n
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One feature that is present on the E-30, but is missing on the NEX-7 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 E-30 has an articulated LCD that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in snapping selfies. In contrast, the NEX-7 does not have a selfie-screen.

The E-30 writes its imaging data to Compact Flash or xD Picture cards, while the NEX-7 uses SDXC or Memory Stick PRO Duo cards. The E-30 features dual card slots, which can be very useful in case a memory card fails. In contrast, the NEX-7 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 E-30 and Sony Alpha NEX-7 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-30Y- / ----2.0---
2.
 
Sony NEX-7Ystereo / monoY-mini2.0---
3.
 
Fujifilm X100Ystereo / ---mini2.0---
4.
 
Olympus E-3Y- / ----2.0---
5.
 
Olympus E-410Y- / ----2.0---
6.
 
Olympus E-420Y- / ----2.0---
7.
 
Olympus E-450Y- / ----2.0---
8.
 
Olympus E-510Y- / ----2.0---
9.
 
Olympus E-520Y- / ----2.0---
10.
 
Olympus E-600Y- / ----2.0---
11.
 
Olympus E-620Y- / ----2.0---
12.
 
Olympus E-P1Ystereo / ---mini2.0---
13.
 
Olympus E-P2Ystereo / ---mini2.0---
14.
 
Sony A3000Ystereo / mono--mini2.0---
15.
 
Sony A6000Ystereo / mono--micro2.0YY-
16.
 
Sony A6400Ystereo / monoY-micro2.0YYY
17.
 
Sony RX1Ystereo / monoY-mini2.0---

Both the E-30 and the NEX-7 have been discontinued, but can regularly be found used on ebay. Neither of the two has a direct successor, so they represent the end of the respective camera lines from Olympus and Sony. Further information on the features and operation of the E-30 and NEX-7 can be found, respectively, in the Olympus E-30 Manual (free pdf) or the online Sony NEX-7 Manual.

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Review summary

So how do things add up? Which of the two cameras – the Olympus E-30 or the Sony NEX-7 – 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.

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Reasons to prefer the Olympus E-30:

  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • Easier setting verification: Features an LCD display on top to control shooting parameters.
  • More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • Longer lasting: Can take more shots (750 versus 430) on a single battery charge.
  • Sharper images: Has hand-shake reducing image stabilization built-in.
  • 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 November 2008).

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Arguments in favor of the Sony Alpha NEX-7:

  • More detail: Has more megapixels (24 vs 12.2MP), which boosts linear resolution by 43%.
  • Better image quality: Scores substantially higher (26 points) in the DXO overall evaluation.
  • Richer colors: Generates noticeably more natural colors (2.8 bits more color depth).
  • More dynamic range: Captures a broader range of light and dark details (3 EV of extra DR).
  • Better low-light sensitivity: Can shoot in dim conditions (0.9 stops ISO advantage).
  • Broader imaging potential: Can capture not only stills but also 1080/60i video.
  • 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 98%).
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.73x vs 0.51x).
  • Larger screen: Has a bigger rear LCD (3.0" vs 2.7") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (921k vs 230k dots).
  • Faster burst: Shoots at higher frequency (10 vs 5 flaps/sec) to capture the decisive moment.
  • More compact: Is smaller (120x67mm vs 142x108mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 301g or 43 percent) and is thus easier to take along.
  • More legacy lens friendly: Can use many non-native lenses via adapters.
  • More modern: Reflects 2 years and 9 months of technical progress since the E-30 launch.

If the number of relative strengths (bullet points above) is taken as a guide, the NEX-7 is the clear winner of the contest (16 : 9 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.

E-30 09:16 NEX-7

How about other alternatives? Do the specifications of the Olympus E-30 and the Sony NEX-7 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-30 and the NEX-7 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.

Expert reviews

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 (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-30......71/1004.5/54/5 Nov 2008 US$ 1 299ebay.com
2.
 
Sony NEX-75/5+ +..81/1004.5/55/5 Aug 2011 US$ 1 349ebay.com
3.
 
Fujifilm X1003/5....75/1004/55/5 Sep 2010 US$ 1 199ebay.com
4.
 
Olympus E-3..88/100..+ +o4/5 Oct 2007 US$ 1 699ebay.com
5.
 
Olympus E-410..86/100..+ +4/54.5/5 Mar 2007 US$ 699ebay.com
6.
 
Olympus E-420..85/100..+ +4/54.5/5 Mar 2008 US$ 599ebay.com
7.
 
Olympus E-450........4/54/5 Mar 2009 US$ 499ebay.com
8.
 
Olympus E-510..89/100..+ +3.5/54.5/5 Mar 2007 US$ 799ebay.com
9.
 
Olympus E-520..87/100..+ +4.5/54.5/5 May 2008 US$ 699ebay.com
10.
 
Olympus E-600..........4.5/5 Aug 2009 US$ 449ebay.com
11.
 
Olympus E-6203/588/100..72/1004.5/55/5 Feb 2009 US$ 699ebay.com
12.
 
Olympus E-P1..+..66/1004/54.5/5 Jun 2009 US$ 799ebay.com
13.
 
Olympus E-P23/5+..69/1004/54.5/5 Nov 2009 US$ 799ebay.com
14.
 
Sony A30003/5+....4/54/5 Aug 2013 US$ 329ebay.com
15.
 
Sony A60005/5+4.5/580/1004.5/55/5 Feb 2014 US$ 599ebay.com
16.
 
Sony A64004/5+4/585/1004.5/54/5 Jan 2019 US$ 899 amazon.com
17.
 
Sony RX15/5....79/1004/54.5/5 Sep 2012 US$ 2 799ebay.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. 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.

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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.

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    Specifications: Olympus E-30 vs Sony NEX-7

    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-30 Sony NEX-7
    Camera Type Digital single lens reflex Mirrorless system camera
    Camera Lens Four Thirds lenses Sony E mount lenses
    Launch Date November 2008 August 2011
    Launch Price USD 1,299 USD 1,349
    Sensor Specs Olympus E-30 Sony NEX-7
    Sensor Technology CMOS CMOS
    Sensor Format Four Thirds Sensor APS-C Sensor
    Sensor Size 17.3 x 13.0 mm 23.4 x 15.6 mm
    Sensor Area 224.9 mm2 365.04 mm2
    Sensor Diagonal 21.6 mm 28.1 mm
    Crop Factor 2.0x 1.5x
    Sensor Resolution 12.2 Megapixels 24 Megapixels
    Image Resolution 4032 x 3024 pixels 6000 x 4000 pixels
    Pixel Pitch 4.29 μm 3.90 μm
    Pixel Density 5.42 MP/cm2 6.57 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability no Video 1080/60i Video
    ISO Setting 100 - 3,200 ISO 100 - 16,000 ISO
    Image Processor TruePic III+ BIONZ
    DXO Sensor Quality (score) 55 81
    DXO Color Depth (bits) 21.3 24.1
    DXO Dynamic Range (EV) 10.4 13.4
    DXO Low Light (ISO) 530 1016
    Screen Specs Olympus E-30 Sony NEX-7
    Viewfinder Type Optical viewfinder Electronic viewfinder
    Viewfinder Field of View 98% 100%
    Viewfinder Magnification 0.51x 0.73x
    Viewfinder Resolution 2359k dots
    Top-Level Screen Control Panel no Top Display
    LCD Framing Live View Live View
    Rear LCD Size 2.7inch 3.0inch
    LCD Resolution 230k dots 921k dots
    LCD Attachment Swivel screen Tilting screen
    Shooting Specs Olympus E-30 Sony NEX-7
    Focus System Phase-detect AF Contrast-detect AF
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/8000s 1/4000s
    Continuous Shooting 5 shutter flaps/s 10 shutter flaps/s
    Image StabilizationIn-body stabilizationLens stabilization only
    Fill Flash Built-in Flash Built-in 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-30 Sony NEX-7
    External Flash Hotshoe Hotshoe
    USB Connector USB 2.0 USB 2.0
    HDMI Port no HDMI mini HDMI
    Microphone Port no MIC socket External MIC port
    Wifi Support no Wifi no Wifi
    Body Specs Olympus E-30 Sony NEX-7
    Battery Type Olympus BLM-1 Sony NP-FW50
    Battery Life (CIPA)750 shots per charge430 shots per charge
    Body Dimensions 142 x 108 x 75 mm
    (5.6 x 4.3 x 3.0 in)
    120 x 67 x 43 mm
    (4.7 x 2.6 x 1.7 in)
    Camera Weight 701 g (24.7 oz) 400 g (14.1 oz)
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