Olympus E-520 vs Nikon D7100
The Olympus E-520 and the Nikon D7100 are two digital cameras that were revealed to the public, respectively, in May 2008 and February 2013. Both are DSLR (Digital Single Lens Reflex) cameras that are based on a Four Thirds (E-520) and an APS-C (D7100) sensor. The Olympus has a resolution of 10 megapixels, whereas the Nikon provides 24 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
Going beyond this snapshot of core features and characteristics, what are the differences between the Olympus E-520 and the Nikon D7100? 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
The physical size and weight of the Olympus E-520 and the Nikon D7100 are illustrated in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All 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 Nikon D7100 is notably larger (16 percent) than the Olympus E-520. Moreover, the D7100 is substantially heavier (43 percent) than the E-520. It is noteworthy in this context that the D7100 is splash and dust-proof, while the E-520 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-520) and the Nikon Lens Catalog (D7100).
Concerning battery life, the E-520 gets 750 shots out of its Olympus BLM-1 battery, while the D7100 can take 950 images on a single charge of its Nikon EN-EL15 power pack.
The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. In case you want to display and compare another camera duo, you can use the CAM-parator app to select your camera combination among a large number of options.
Camera Model |
Camera Width |
Camera Height |
Camera Depth |
Camera Weight |
Battery Life |
Weather Sealing |
Camera Launch |
Launch Price (USD) |
Street Price |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Olympus E-520 | 136 mm | 92 mm | 68 mm | 535 g | 750 | n | May 2008 | 699 | ebay.com | |
2. | Nikon D7100 | 136 mm | 107 mm | 76 mm | 765 g | 950 | Y | Feb 2013 | 1,199 | ebay.com | |
3. | Canon 70D | 139 mm | 104 mm | 79 mm | 755 g | 920 | Y | Jul 2013 | 1,199 | ebay.com | |
4. | Nikon D3300 | 124 mm | 98 mm | 76 mm | 430 g | 700 | n | Jan 2014 | 499 | ebay.com | |
5. | Nikon D7000 | 132 mm | 105 mm | 77 mm | 780 g | 1050 | Y | Sep 2010 | 1,499 | ebay.com | |
6. | Nikon D7200 | 136 mm | 107 mm | 76 mm | 765 g | 1110 | Y | Mar 2015 | 1,199 | ebay.com | |
7. | Nikon D7500 | 136 mm | 104 mm | 73 mm | 720 g | 950 | Y | Apr 2017 | 1,299 | amazon.com | |
8. | Olympus E-30 | 142 mm | 108 mm | 75 mm | 701 g | 750 | n | Nov 2008 | 1,299 | ebay.com | |
9. | Olympus E-410 | 130 mm | 91 mm | 53 mm | 435 g | 500 | n | Mar 2007 | 699 | ebay.com | |
10. | Olympus E-420 | 130 mm | 91 mm | 53 mm | 440 g | 500 | n | Mar 2008 | 599 | ebay.com | |
11. | Olympus E-450 | 130 mm | 91 mm | 53 mm | 440 g | 500 | n | Mar 2009 | 499 | ebay.com | |
12. | Olympus E-510 | 136 mm | 92 mm | 68 mm | 538 g | 750 | n | Mar 2007 | 799 | ebay.com | |
13. | Olympus E-600 | 130 mm | 94 mm | 60 mm | 535 g | 500 | n | Aug 2009 | 449 | ebay.com | |
14. | Olympus E-620 | 130 mm | 94 mm | 60 mm | 521 g | 500 | n | Feb 2009 | 699 | ebay.com | |
15. | Olympus E-P1 | 121 mm | 70 mm | 36 mm | 355 g | 300 | n | Jun 2009 | 799 | ebay.com | |
16. | Olympus E-P2 | 121 mm | 70 mm | 36 mm | 355 g | 300 | n | Nov 2009 | 799 | ebay.com | |
17. | Panasonic L10 | 135 mm | 96 mm | 78 mm | 556 g | 450 | n | Aug 2007 | 599 | ebay.com | |
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders. | |||||||||||
The price is, of course, an important factor in any camera decision. 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 42 percent) than the D7100, 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 generally have larger individual pixels that offer better low-light sensitivity, provide wider dynamic range, and have 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-520 features a Four Thirds sensor and the Nikon D7100 an APS-C sensor. The sensor area in the D7100 is 63 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-520 has a native 4:3 aspect ratio, while the one in the D7100 offers a 3:2 aspect.
With 24MP, the D7100 offers a higher resolution than the E-520 (10MP), but the D7100 has smaller individual pixels (pixel pitch of 3.91μm versus 4.74μm for the E-520). Yet, the D7100 is a much more recent model (by 4 years and 9 months) than the E-520, 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 D7100 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
The resolution advantage of the Nikon D7100 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the D7100 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-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-520 has a native sensitivity range from ISO 100 to ISO 1600. The corresponding ISO settings for the Nikon D7100 are ISO 100 to ISO 6400, with the possibility to increase the ISO range to 50-25600.
Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.
Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. This service 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"). Of the two cameras under consideration, the D7100 offers substantially better image quality than the E-520 (overall score 28 points higher). The advantage is based on 2.8 bits higher color depth, 3.3 EV in additional dynamic range, and 1.2 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.
Camera Model |
Sensor Class |
Resolution (MP) |
Horiz. Pixels |
Vert. Pixels |
Video Format |
DXO Portrait |
DXO Landscape |
DXO Sports |
DXO Overall |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Olympus E-520 | Four Thirds | 10.0 | 3648 | 2736 | none | 21.4 | 10.4 | 548 | 55 | |
2. | Nikon D7100 | APS-C | 24.0 | 6000 | 4000 | 1080/60p | 24.2 | 13.7 | 1256 | 83 | |
3. | Canon 70D | APS-C | 20.0 | 5472 | 3648 | 1080/30p | 22.5 | 11.6 | 926 | 68 | |
4. | Nikon D3300 | APS-C | 24.0 | 6000 | 4000 | 1080/60p | 24.3 | 12.8 | 1385 | 82 | |
5. | Nikon D7000 | APS-C | 16.1 | 4928 | 3264 | 1080/24p | 23.5 | 13.9 | 1167 | 80 | |
6. | Nikon D7200 | APS-C | 24.0 | 6000 | 4000 | 1080/60p | 24.5 | 14.6 | 1333 | 87 | |
7. | Nikon D7500 | APS-C | 20.7 | 5568 | 3712 | 4K/30p | 24.3 | 14.0 | 1483 | 86 | |
8. | Olympus E-30 | Four Thirds | 12.2 | 4032 | 3024 | none | 21.3 | 10.4 | 530 | 55 | |
9. | Olympus E-410 | Four Thirds | 10.0 | 3648 | 2736 | none | 21.1 | 10.0 | 494 | 51 | |
10. | Olympus E-420 | Four Thirds | 10.0 | 3648 | 2736 | none | 21.5 | 10.4 | 527 | 56 | |
11. | Olympus E-450 | Four Thirds | 10.0 | 3648 | 2736 | none | 21.5 | 10.5 | 512 | 56 | |
12. | Olympus E-510 | Four Thirds | 10.0 | 3648 | 2736 | none | 21.2 | 10.0 | 442 | 52 | |
13. | Olympus E-600 | Four Thirds | 12.2 | 4032 | 3024 | none | 21.5 | 10.3 | 541 | 55 | |
14. | Olympus E-620 | Four Thirds | 12.2 | 4032 | 3024 | none | 21.3 | 10.3 | 536 | 55 | |
15. | Olympus E-P1 | Four Thirds | 12.2 | 4032 | 3024 | 720/30p | 21.4 | 10.4 | 536 | 55 | |
16. | Olympus E-P2 | Four Thirds | 12.2 | 4032 | 3024 | 720/30p | 21.5 | 10.4 | 505 | 56 | |
17. | Panasonic L10 | Four Thirds | 10.0 | 3648 | 2736 | none | 21.3 | 10.8 | 429 | 55 |
Many modern cameras are not only capable of taking still images, but also of capturing video footage. The D7100 indeed provides for movie recording, while the E-520 does not. The highest resolution format that the D7100 can use is 1080/60p.
Feature comparison
Beyond body and sensor, cameras can and do differ across a range of features. The E-520 and the D7100 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 D7100 offers a wider field of view (100%) 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 D7100 has a higher magnification (0.63x 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-520, the Nikon D7100, 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-520 | optical | n | 2.7 / 215 | fixed | n | 1/4000s | 3.5/s | Y | Y | |
2. | Nikon D7100 | optical | Y | 3.2 / 1229 | fixed | n | 1/8000s | 6.0/s | Y | n | |
3. | Canon 70D | optical | Y | 3.0 / 1040 | swivel | Y | 1/8000s | 7.0/s | Y | n | |
4. | Nikon D3300 | optical | n | 3.0 / 921 | fixed | n | 1/4000s | 5.0/s | Y | n | |
5. | Nikon D7000 | optical | Y | 3.0 / 921 | fixed | n | 1/8000s | 6.0/s | Y | n | |
6. | Nikon D7200 | optical | Y | 3.2 / 1229 | fixed | n | 1/8000s | 6.0/s | Y | n | |
7. | Nikon D7500 | optical | Y | 3.2 / 922 | tilting | Y | 1/8000s | 8.0/s | Y | n | |
8. | Olympus E-30 | optical | Y | 2.7 / 230 | swivel | n | 1/8000s | 5.0/s | Y | Y | |
9. | Olympus E-410 | optical | n | 2.5 / 215 | fixed | n | 1/4000s | 3.0/s | Y | n | |
10. | Olympus E-420 | optical | n | 2.7 / 215 | fixed | n | 1/4000s | 3.5/s | Y | n | |
11. | Olympus E-450 | optical | n | 2.7 / 215 | fixed | n | 1/4000s | 3.5/s | Y | n | |
12. | Olympus E-510 | optical | n | 2.5 / 215 | fixed | n | 1/4000s | 3.0/s | Y | Y | |
13. | Olympus E-600 | optical | n | 2.7 / 230 | swivel | n | 1/4000s | 4.0/s | Y | Y | |
14. | Olympus E-620 | optical | n | 2.7 / 230 | swivel | n | 1/4000s | 4.0/s | Y | Y | |
15. | Olympus E-P1 | none | n | 3.0 / 230 | fixed | n | 1/4000s | 3.0/s | n | Y | |
16. | Olympus E-P2 | optional | n | 3.0 / 230 | fixed | n | 1/4000s | 3.0/s | n | Y | |
17. | Panasonic L10 | optical | n | 2.5 / 207 | swivel | n | 1/4000s | 3.0/s | Y | n | |
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one. |
One feature that differentiates the E-520 and the D7100 is in-body image stabilization (IBIS). The E-520 reduces the risk of handshake-induced blur with all attached lenses, while the D7100 offers no blur reduction with lenses that themselves do not provide optical image stabilization.
The Nikon D7100 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-520 writes its imaging data to Compact Flash or xD Picture cards, while the D7100 uses SDXC 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-520 and Nikon D7100 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-520 | Y | - / - | - | - | - | 2.0 | - | - | - | |
2. | Nikon D7100 | Y | stereo / mono | Y | Y | mini | 2.0 | - | - | - | |
3. | Canon 70D | Y | stereo / mono | Y | - | mini | 2.0 | Y | - | - | |
4. | Nikon D3300 | Y | mono / mono | Y | - | mini | 2.0 | - | - | - | |
5. | Nikon D7000 | Y | mono / mono | Y | - | mini | 2.0 | - | - | - | |
6. | Nikon D7200 | Y | stereo / mono | Y | Y | mini | 2.0 | Y | Y | - | |
7. | Nikon D7500 | Y | stereo / mono | Y | Y | mini | 2.0 | Y | - | Y | |
8. | Olympus E-30 | Y | - / - | - | - | - | 2.0 | - | - | - | |
9. | Olympus E-410 | Y | - / - | - | - | - | 2.0 | - | - | - | |
10. | Olympus E-420 | Y | - / - | - | - | - | 2.0 | - | - | - | |
11. | Olympus E-450 | Y | - / - | - | - | - | 2.0 | - | - | - | |
12. | Olympus E-510 | Y | - / - | - | - | - | 2.0 | - | - | - | |
13. | Olympus E-600 | Y | - / - | - | - | - | 2.0 | - | - | - | |
14. | Olympus E-620 | Y | - / - | - | - | - | 2.0 | - | - | - | |
15. | Olympus E-P1 | Y | stereo / - | - | - | mini | 2.0 | - | - | - | |
16. | Olympus E-P2 | Y | stereo / - | - | - | mini | 2.0 | - | - | - | |
17. | Panasonic L10 | Y | - / - | - | - | - | 2.0 | - | - | - |
Both the E-520 and the D7100 have been discontinued, but can regularly be found used on ebay. The D7100 was replaced by the Nikon D7200, while the E-520 does not have a direct successor. Further information on the features and operation of the E-520 and D7100 can be found, respectively, in the Olympus E-520 Manual (free pdf) or the online Nikon D7100 Manual.
Review summary
So how do things add up? Which of the two cameras – the Olympus E-520 or the Nikon D7100 – has the upper hand? Is one clearly better than the other? A synthesis of the relative strong points of each of the models is listed below.
Arguments in favor of the Olympus E-520:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- More compact: Is smaller (136x92mm vs 136x107mm) and thus needs less room in the bag.
- Less heavy: Is lighter (by 230g or 30 percent) and hence easier to carry around.
- Sharper images: Has hand-shake reducing image stabilization built-in.
- More affordable: Was introduced into a lower priced category (42 percent cheaper at launch).
- More heavily discounted: Has been available for much longer (launched in May 2008).
Reasons to prefer the Nikon D7100:
- More detail: Has more megapixels (24 vs 10MP), which boosts linear resolution by 58%.
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- Better image quality: Scores substantially higher (28 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 (3.3 EV of extra DR).
- Better low-light sensitivity: Can shoot in dim conditions (1.2 stops ISO advantage).
- Broader imaging potential: Can capture not only stills but also 1080/60p video.
- 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 (0.63x vs 0.46x).
- Easier setting verification: Features a control panel on top to check shooting parameters.
- Larger screen: Has a bigger rear LCD (3.2" vs 2.7") for image review and settings control.
- More detailed LCD: Has a higher resolution rear screen (1229k vs 215k dots).
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
- Faster burst: Shoots at higher frequency (6 vs 3.5 flaps/sec) to capture the decisive moment.
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- Longer lasting: Gets more shots (950 versus 750) out of a single battery charge.
- Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
- More modern: Reflects 4 years and 9 months of technical progress since the E-520 launch.
If the count of individual advantages (bullet points above) is taken as a guide, the D7100 is the clear winner of the contest (18 : 6 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-520 and the Nikon D7100 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 remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the E-520 or the D7100. 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 where reviews by experts come in. 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-520 | .. | 87/100 | .. | + + | 4.5/5 | 4.5/5 | May 2008 | 699 | ebay.com | |
2. | Nikon D7100 | 5/5 | + + | .. | 85/100 | 4.5/5 | 4.5/5 | Feb 2013 | 1,199 | ebay.com | |
3. | Canon 70D | 5/5 | + + | .. | 83/100 | 4.5/5 | 5/5 | Jul 2013 | 1,199 | ebay.com | |
4. | Nikon D3300 | 3/5 | + | .. | 77/100 | 4.5/5 | 4.5/5 | Jan 2014 | 499 | ebay.com | |
5. | Nikon D7000 | 4/5 | .. | .. | 80/100 | 4.5/5 | 4.5/5 | Sep 2010 | 1,499 | ebay.com | |
6. | Nikon D7200 | 4/5 | + + | .. | 84/100 | 4.5/5 | 4.5/5 | Mar 2015 | 1,199 | ebay.com | |
7. | Nikon D7500 | 4.5/5 | + + | 4.5/5 | 86/100 | 5/5 | 4.5/5 | Apr 2017 | 1,299 | amazon.com | |
8. | Olympus E-30 | .. | .. | .. | 71/100 | 4.5/5 | 4/5 | Nov 2008 | 1,299 | ebay.com | |
9. | Olympus E-410 | .. | 86/100 | .. | + + | 4/5 | 4.5/5 | Mar 2007 | 699 | ebay.com | |
10. | Olympus E-420 | .. | 85/100 | .. | + + | 4/5 | 4.5/5 | Mar 2008 | 599 | ebay.com | |
11. | Olympus E-450 | .. | .. | .. | .. | 4/5 | 4/5 | Mar 2009 | 499 | ebay.com | |
12. | Olympus E-510 | .. | 89/100 | .. | + + | 3.5/5 | 4.5/5 | Mar 2007 | 799 | ebay.com | |
13. | Olympus E-600 | .. | .. | .. | .. | .. | 4.5/5 | Aug 2009 | 449 | ebay.com | |
14. | Olympus E-620 | 3/5 | 88/100 | .. | 72/100 | 4.5/5 | 5/5 | Feb 2009 | 699 | ebay.com | |
15. | Olympus E-P1 | .. | + | .. | 66/100 | 4/5 | 4.5/5 | Jun 2009 | 799 | ebay.com | |
16. | Olympus E-P2 | 3/5 | + | .. | 69/100 | 4/5 | 4.5/5 | Nov 2009 | 799 | ebay.com | |
17. | Panasonic L10 | .. | 85/100 | .. | + | 3.5/5 | 4/5 | Aug 2007 | 599 | ebay.com | |
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available. |
Care should be taken when interpreting the review scores above, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. 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. Also, please note that some of the review sites have changed their methodology and reporting over time.
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. 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 250D vs Nikon D7100
- Canon XTi vs Olympus E-520
- Fujifilm X-M1 vs Nikon D7100
- Leica X2 vs Nikon D7100
- Nikon D3200 vs Olympus E-520
- Nikon D7100 vs Panasonic G85
- Nikon D7100 vs Sony A7R III
- Nikon D7100 vs Sony WX800
- Olympus E-520 vs Panasonic G5
- Olympus E-520 vs Pentax K-5
- Olympus E-520 vs Pentax MX-1
- Olympus E-520 vs Sony A7 III
Specifications: Olympus E-520 vs Nikon D7100
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-520 | Nikon D7100 |
---|---|---|
Camera Type | Digital single lens reflex | Digital single lens reflex |
Camera Lens | Four Thirds lenses | Nikon F mount lenses |
Launch Date | May 2008 | February 2013 |
Launch Price | USD 699 | USD 1,199 |
Sensor Specs | Olympus E-520 | Nikon D7100 |
Sensor Technology | CMOS | CMOS |
Sensor Format | Four Thirds Sensor | APS-C Sensor |
Sensor Size | 17.3 x 13.0 mm | 23.5 x 15.6 mm |
Sensor Area | 224.9 mm2 | 366.6 mm2 |
Sensor Diagonal | 21.6 mm | 28.2 mm |
Crop Factor | 2.0x | 1.5x |
Sensor Resolution | 10 Megapixels | 24 Megapixels |
Image Resolution | 3648 x 2736 pixels | 6000 x 4000 pixels |
Pixel Pitch | 4.74 μm | 3.91 μm |
Pixel Density | 4.44 MP/cm2 | 6.55 MP/cm2 |
Moiré control | Anti-Alias filter | no AA filter |
Movie Capability | no Video | 1080/60p Video |
ISO Setting | 100 - 1,600 ISO | 100 - 6,400 ISO |
ISO Boost | no Enhancement | 50 - 25,600 ISO |
Image Processor | TruePic III | EXPEED 4 |
DXO Sensor Quality (score) | 55 | 83 |
DXO Color Depth (bits) | 21.4 | 24.2 |
DXO Dynamic Range (EV) | 10.4 | 13.7 |
DXO Low Light (ISO) | 548 | 1256 |
Screen Specs | Olympus E-520 | Nikon D7100 |
Viewfinder Type | Optical viewfinder | Optical viewfinder |
Viewfinder Field of View | 95% | 100% |
Viewfinder Magnification | 0.46x | 0.63x |
Top-Level Screen | no Top Display | Control Panel |
LCD Framing | Live View | Live View |
Rear LCD Size | 2.7inch | 3.2inch |
LCD Resolution | 215k dots | 1229k dots |
LCD Attachment | Fixed screen | Fixed screen |
Shooting Specs | Olympus E-520 | Nikon D7100 |
Focus System | Phase-detect AF | Phase-detect AF |
Continuous Shooting | 3.5 shutter flaps/s | 6 shutter flaps/s |
Time-Lapse Photography | no Intervalometer | Intervalometer built-in |
Image Stabilization | In-body stabilization | Lens stabilization only |
Fill Flash | Built-in Flash | Built-in Flash |
Storage Medium | CF or XD cards | SDXC cards |
Single or Dual Card Slots | Dual card slots | Dual card slots |
Connectivity Specs | Olympus E-520 | Nikon D7100 |
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 |
Headphone Socket | no Headphone port | Headphone port |
Wifi Support | no Wifi | no Wifi |
Body Specs | Olympus E-520 | Nikon D7100 |
Environmental Sealing | not weather sealed | Weathersealed body |
Battery Type | Olympus BLM-1 | Nikon EN-EL15 |
Battery Life (CIPA) | 750 shots per charge | 950 shots per charge |
Body Dimensions |
136 x 92 x 68 mm (5.4 x 3.6 x 2.7 in) |
136 x 107 x 76 mm (5.4 x 4.2 x 3.0 in) |
Camera Weight | 535 g (18.9 oz) | 765 g (27.0 oz) |
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