Olympus E-30 vs E-520
The Olympus E-30 and the Olympus E-520 are two digital cameras that were officially introduced, respectively, in November 2008 and May 2008. Both are DSLR (Digital Single Lens Reflex) cameras that are equipped with a Four Thirds sensor. The E-30 has a resolution of 12.2 megapixels, whereas the E-520 provides 10 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.

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Going beyond this snapshot of core features and characteristics, what are the differences between the Olympus E-30 and the Olympus E-520? 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 Olympus E-30 and the Olympus E-520 is provided 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 width, height and depth dimensions are rounded to the nearest millimeter.



If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Olympus E-520 is notably smaller (18 percent) than the Olympus E-30. Moreover, the E-520 is markedly lighter (24 percent) than the E-30. In this context, it is worth noting that neither the E-30 nor the E-520 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. In this particular case, both cameras feature the same lens mount, so that they can use the same lenses. You can compare the optics available in the Four Thirds Lens Catalog.
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.

Camera Model |
Camera Width |
Camera Height |
Camera Depth |
Camera Weight |
Battery Life |
Weather Sealing |
Camera Launch |
Launch Price (USD) |
Street Price |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Olympus E-30 | 142 mm | 108 mm | 75 mm | 701 g | 750 | n | Nov 2008 | 1,299 | ebay.com | |
2. | Olympus E-520 | 136 mm | 92 mm | 68 mm | 535 g | 750 | n | May 2008 | 699 | ebay.com | |
3. | Olympus E-450 | 130 mm | 91 mm | 53 mm | 440 g | 500 | n | Mar 2009 | 499 | ebay.com | |
4. | Olympus E-600 | 130 mm | 94 mm | 60 mm | 535 g | 500 | n | Aug 2009 | 449 | ebay.com | |
5. | Olympus E-620 | 130 mm | 94 mm | 60 mm | 521 g | 500 | n | Feb 2009 | 699 | ebay.com | |
6. | Olympus E-P1 | 121 mm | 70 mm | 36 mm | 355 g | 300 | n | Jun 2009 | 799 | ebay.com | |
7. | Olympus E-P2 | 121 mm | 70 mm | 36 mm | 355 g | 300 | n | Nov 2009 | 799 | ebay.com | |
8. | Olympus E-420 | 130 mm | 91 mm | 53 mm | 440 g | 500 | n | Mar 2008 | 599 | ebay.com | |
9. | Olympus E-3 | 142 mm | 116 mm | 75 mm | 876 g | 750 | Y | Oct 2007 | 1,699 | ebay.com | |
10. | Olympus E-410 | 130 mm | 91 mm | 53 mm | 435 g | 500 | n | Mar 2007 | 699 | ebay.com | |
11. | Olympus E-510 | 136 mm | 92 mm | 68 mm | 538 g | 750 | n | Mar 2007 | 799 | 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 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-520 was launched at a markedly lower price (by 46 percent) than the E-30, 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 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. Further, a large sensor camera will give the photographer additional creative options when using shallow depth-of-field to isolate a subject from its background. On the downside, larger sensors tend to be associated with larger, more expensive camera bodies and lenses.
Both cameras under consideration feature a Four Thirds sensor and have a format factor (sometimes also referred to as "crop factor") of 2.0. Within the spectrum of camera sensors, this places the review cameras among the medium-sized sensor cameras that aim to strike a balance between image quality and portability. Both cameras feature a native aspect ratio (sensor width to sensor height) of 4:3.
In terms of chip-set technology, the E-30 uses a more advanced image processing engine (TruePic III+) than the E-520 (TruePic III), with benefits for noise reduction, color accuracy, and processing speed.

While the two cameras under review share the same sensor size, the E-30 offers a higher resolution of 12.2 megapixels, compared with 10 MP of the E-520. This megapixels advantage translates into a 11 percent gain in linear resolution. On the other hand, these sensor specs imply that the E-30 has a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 4.29μm versus 4.74μm for the E-520). In this context, it should be noted, however, that the E-30 is a somewhat more recent model (by 5 months) than the E-520, and its sensor might have benefitted from technological advances during this time that at least partly compensate for the smaller pixel size.
The resolution advantage of the Olympus E-30 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the E-30 for good quality output (200 dots per inch) amounts to 20.2 x 15.1 inches or 51.2 x 38.4 cm, for very good quality (250 dpi) 16.1 x 12.1 inches or 41 x 30.7 cm, and for excellent quality (300 dpi) 13.4 x 10.1 inches or 34.1 x 25.6 cm. The corresponding values for the Olympus E-520 are 18.2 x 13.7 inches or 46.3 x 34.7 cm for good quality, 14.6 x 10.9 inches or 37.1 x 27.8 cm for very good quality, and 12.2 x 9.1 inches or 30.9 x 23.2 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 Olympus E-520 are ISO 100 to ISO 1600 (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.

For many cameras, data on sensor performance has been reported by DXO Mark. This service is based on lab testing and assigns an overall score to each camera sensor, as well as ratings for dynamic range ("DXO Landscape"), color depth ("DXO Portrait"), and low-light sensitivity ("DXO Sports"). The Overall DXO ratings for the two cameras under consideration are close, suggesting that they provide similar imaging performance. 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. | Olympus E-30 | Four Thirds | 12.2 | 4032 | 3024 | none | 21.3 | 10.4 | 530 | 55 | |
2. | Olympus E-520 | Four Thirds | 10.0 | 3648 | 2736 | none | 21.4 | 10.4 | 548 | 55 | |
3. | Olympus E-450 | Four Thirds | 10.0 | 3648 | 2736 | none | 21.5 | 10.5 | 512 | 56 | |
4. | Olympus E-600 | Four Thirds | 12.2 | 4032 | 3024 | none | 21.5 | 10.3 | 541 | 55 | |
5. | Olympus E-620 | Four Thirds | 12.2 | 4032 | 3024 | none | 21.3 | 10.3 | 536 | 55 | |
6. | Olympus E-P1 | Four Thirds | 12.2 | 4032 | 3024 | 720/30p | 21.4 | 10.4 | 536 | 55 | |
7. | Olympus E-P2 | Four Thirds | 12.2 | 4032 | 3024 | 720/30p | 21.5 | 10.4 | 505 | 56 | |
8. | Olympus E-420 | Four Thirds | 10.0 | 3648 | 2736 | none | 21.5 | 10.4 | 527 | 56 | |
9. | Olympus E-3 | Four Thirds | 10.0 | 3648 | 2736 | none | 21.6 | 10.5 | 571 | 56 | |
10. | Olympus E-410 | Four Thirds | 10.0 | 3648 | 2736 | none | 21.1 | 10.0 | 494 | 51 | |
11. | Olympus E-510 | Four Thirds | 10.0 | 3648 | 2736 | none | 21.2 | 10.0 | 442 | 52 |
Feature comparison
Apart from body and sensor, cameras can and do differ across a range of features. The E-30 and the E-520 are similar in the sense that both have an optical viewfinder. The latter is useful for getting a clear image for framing even in brightly lit environments. The viewfinder in the E-30 offers a wider field of view (98%) than the one in the E-520 (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the E-30 has a higher magnification (0.51x vs 0.46x), 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 Olympus E-520, and comparable 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. | Olympus E-30 | optical | Y | 2.7 / 230 | swivel | n | 1/8000s | 5.0/s | Y | Y | |
2. | Olympus E-520 | optical | n | 2.7 / 215 | fixed | n | 1/4000s | 3.5/s | Y | Y | |
3. | Olympus E-450 | optical | n | 2.7 / 215 | fixed | n | 1/4000s | 3.5/s | Y | n | |
4. | Olympus E-600 | optical | n | 2.7 / 230 | swivel | n | 1/4000s | 4.0/s | Y | Y | |
5. | Olympus E-620 | optical | n | 2.7 / 230 | swivel | n | 1/4000s | 4.0/s | Y | Y | |
6. | Olympus E-P1 | none | n | 3.0 / 230 | fixed | n | 1/4000s | 3.0/s | n | Y | |
7. | Olympus E-P2 | optional | n | 3.0 / 230 | fixed | n | 1/4000s | 3.0/s | n | Y | |
8. | Olympus E-420 | optical | n | 2.7 / 215 | fixed | n | 1/4000s | 3.5/s | Y | n | |
9. | Olympus E-3 | optical | Y | 2.5 / 230 | swivel | n | 1/8000s | 5.0/s | Y | Y | |
10. | Olympus E-410 | optical | n | 2.5 / 215 | fixed | n | 1/4000s | 3.0/s | Y | n | |
11. | Olympus E-510 | optical | n | 2.5 / 215 | fixed | n | 1/4000s | 3.0/s | Y | Y | |
Notes: *) 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 E-520 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 E-520 does not have a selfie-screen.Concerning the storage of imaging data, both the E-30 and the E-520 write their files to Compact Flash or xD Picture cards. Both cameras feature dual card slots, which can be very useful in case a memory card fails.
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 Olympus E-520 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. | Olympus E-30 | Y | - / - | - | - | - | 2.0 | - | - | - | |
2. | Olympus E-520 | Y | - / - | - | - | - | 2.0 | - | - | - | |
3. | Olympus E-450 | Y | - / - | - | - | - | 2.0 | - | - | - | |
4. | Olympus E-600 | Y | - / - | - | - | - | 2.0 | - | - | - | |
5. | Olympus E-620 | Y | - / - | - | - | - | 2.0 | - | - | - | |
6. | Olympus E-P1 | Y | stereo / - | - | - | mini | 2.0 | - | - | - | |
7. | Olympus E-P2 | Y | stereo / - | - | - | mini | 2.0 | - | - | - | |
8. | Olympus E-420 | Y | - / - | - | - | - | 2.0 | - | - | - | |
9. | Olympus E-3 | Y | - / - | - | - | - | 2.0 | - | - | - | |
10. | Olympus E-410 | Y | - / - | - | - | - | 2.0 | - | - | - | |
11. | Olympus E-510 | Y | - / - | - | - | - | 2.0 | - | - | - |
Both the E-30 and the E-520 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. Further information on the features and operation of the E-30 and E-520 can be found, respectively, in the Olympus E-30 Manual (free pdf) or the online Olympus E-520 Manual.
Review summary
So what conclusions can be drawn? Is there a clear favorite between the Olympus E-30 and the Olympus E-520? Which camera is better? The listing below highlights the relative strengths of the two models.
Arguments in favor of the Olympus E-30:
- More detail: Offers more megapixels (12.2 vs 10MP) with a 11% higher linear resolution.
- Better jpgs: Has a more modern image processing engine (TruePic III+ vs TruePic III).
- More complete view: Has a viewfinder with a larger field of view (98% vs 95%).
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.51x vs 0.46x).
- 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.
- Faster burst: Shoots at higher frequency (5 vs 3.5 flaps/sec) to capture the decisive moment.
- More modern: Is somewhat more recent (announced 5 months after the E-520).
Reasons to prefer the Olympus E-520:
- More compact: Is smaller (136x92mm vs 142x108mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 166g or 24 percent) and is thus easier to take along.
- More affordable: Was introduced into a lower priced category (46 percent cheaper at launch).
- More heavily discounted: Has been on the market for longer (launched in May 2008).
If the count of relative strengths (bullet points above) is taken as a measure, the E-30 is the clear winner of the match-up (10 : 4 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.
How about other alternatives? Do the specifications of the Olympus E-30 and the Olympus E-520 place the cameras among the top in their class? Find out in the latest Best DSLR Camera listing 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 E-520 in practical situations. 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.

Camera Model |
AP score |
CL score |
DCW score |
DPR score |
EPZ score |
PB score |
Camera Launch |
Launch Price (USD) |
Street Price |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Olympus E-30 | .. | .. | .. | 71/100 | 4.5/5 | 4/5 | Nov 2008 | 1,299 | ebay.com | |
2. | Olympus E-520 | .. | 87/100 | .. | + + | 4.5/5 | 4.5/5 | May 2008 | 699 | ebay.com | |
3. | Olympus E-450 | .. | .. | .. | .. | 4/5 | 4/5 | Mar 2009 | 499 | ebay.com | |
4. | Olympus E-600 | .. | .. | .. | .. | .. | 4.5/5 | Aug 2009 | 449 | ebay.com | |
5. | Olympus E-620 | 3/5 | 88/100 | .. | 72/100 | 4.5/5 | 5/5 | Feb 2009 | 699 | ebay.com | |
6. | Olympus E-P1 | .. | + | .. | 66/100 | 4/5 | 4.5/5 | Jun 2009 | 799 | ebay.com | |
7. | Olympus E-P2 | 3/5 | + | .. | 69/100 | 4/5 | 4.5/5 | Nov 2009 | 799 | ebay.com | |
8. | Olympus E-420 | .. | 85/100 | .. | + + | 4/5 | 4.5/5 | Mar 2008 | 599 | ebay.com | |
9. | Olympus E-3 | .. | 88/100 | .. | + + | o | 4/5 | Oct 2007 | 1,699 | ebay.com | |
10. | Olympus E-410 | .. | 86/100 | .. | + + | 4/5 | 4.5/5 | Mar 2007 | 699 | ebay.com | |
11. | Olympus E-510 | .. | 89/100 | .. | + + | 3.5/5 | 4.5/5 | Mar 2007 | 799 | ebay.com | |
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available. |
Care should be taken when interpreting the review scores above, 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 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.
- Canon 1D vs Olympus E-520
- Canon 90D vs Olympus E-30
- Canon G3 X vs Olympus E-520
- Canon M100 vs Olympus E-30
- Canon XS vs Olympus E-520
- Leica V-LUX 2 vs Olympus E-30
- Olympus E-30 vs Panasonic GH5
- Olympus E-30 vs Ricoh WG-60
- Olympus E-30 vs Sony A6400
- Olympus E-500 vs Olympus E-520
- Olympus E-520 vs Sony A5000
- Olympus E-520 vs Sony NEX-3
Specifications: Olympus E-30 vs Olympus E-520
Below is a side-by-side comparison of the specs of the two cameras to facilitate a quick review of their differences and common features.
Camera Model | Olympus E-30 | Olympus E-520 |
Camera Type | Digital single lens reflex | Digital single lens reflex |
Camera Lens | Four Thirds lenses | Four Thirds lenses |
Launch Date | November 2008 | May 2008 |
Launch Price | USD 1,299 | USD 699 |
Sensor Specs | Olympus E-30 | Olympus E-520 |
---|---|---|
Sensor Technology | CMOS | CMOS |
Sensor Format | Four Thirds Sensor | Four Thirds Sensor |
Sensor Size | 17.3 x 13.0 mm | 17.3 x 13.0 mm |
Sensor Area | 224.9 mm2 | 224.9 mm2 |
Sensor Diagonal | 21.6 mm | 21.6 mm |
Crop Factor | 2.0x | 2.0x |
Sensor Resolution | 12.2 Megapixels | 10 Megapixels |
Image Resolution | 4032 x 3024 pixels | 3648 x 2736 pixels |
Pixel Pitch | 4.29 μm | 4.74 μm |
Pixel Density | 5.42 MP/cm2 | 4.44 MP/cm2 |
Moiré control | Anti-Alias filter | Anti-Alias filter |
Movie Capability | no Video | no Video |
ISO Setting | 100 - 3,200 ISO | 100 - 1,600 ISO |
Image Processor | TruePic III+ | TruePic III |
DXO Sensor Quality (score) | 55 | 55 |
DXO Color Depth (bits) | 21.3 | 21.4 |
DXO Dynamic Range (EV) | 10.4 | 10.4 |
DXO Low Light (ISO) | 530 | 548 |
Screen Specs | Olympus E-30 | Olympus E-520 |
Viewfinder Type | Optical viewfinder | Optical viewfinder |
Viewfinder Field of View | 98% | 95% |
Viewfinder Magnification | 0.51x | 0.46x |
Top-Level Screen | Control Panel | no Top Display |
LCD Framing | Live View | Live View |
Rear LCD Size | 2.7inch | 2.7inch |
LCD Resolution | 230k dots | 215k dots |
LCD Attachment | Swivel screen | Fixed screen |
Shooting Specs | Olympus E-30 | Olympus E-520 |
Focus System | Phase-detect AF | Phase-detect AF |
Continuous Shooting | 5 shutter flaps/s | 3.5 shutter flaps/s |
Image Stabilization | In-body stabilization | In-body stabilization |
Fill Flash | Built-in Flash | Built-in Flash |
Storage Medium | CF or XD cards | CF or XD cards |
Single or Dual Card Slots | Dual card slots | Dual card slots |
Connectivity Specs | Olympus E-30 | Olympus E-520 |
External Flash | Hotshoe | Hotshoe |
USB Connector | USB 2.0 | USB 2.0 |
HDMI Port | no HDMI | no HDMI |
Wifi Support | no Wifi | no Wifi |
Body Specs | Olympus E-30 | Olympus E-520 |
Battery Type | BLM-1 | BLM-1 |
Battery Life (CIPA) | 750 shots per charge | 750 shots per charge |
Body Dimensions |
142 x 108 x 75 mm (5.6 x 4.3 x 3.0 in) |
136 x 92 x 68 mm (5.4 x 3.6 x 2.7 in) |
Camera Weight | 701 g (24.7 oz) | 535 g (18.9 oz) |

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