Nikon D5100 vs Olympus E-620
The Nikon D5100 and the Olympus E-620 are two digital cameras that were announced, respectively, in April 2011 and February 2009. Both are DSLR (Digital Single Lens Reflex) cameras that are based on an APS-C (D5100) and a Four Thirds (E-620) sensor. The Nikon has a resolution of 16.1 megapixels, whereas the Olympus provides 12.2 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 Nikon D5100 and the Olympus E-620? 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.
The physical size and weight of the Nikon D5100 and the Olympus E-620 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 size 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-620 is somewhat smaller (2 percent) than the Nikon D5100. Moreover, the E-620 is markedly lighter (7 percent) than the D5100. In this context, it is worth noting that neither the D5100 nor the E-620 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 Nikon Lens Catalog (D5100) and the Four Thirds Lens Catalog (E-620).
The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. 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.
|1.||Nikon D5100||128 mm||97 mm||79 mm||560 g||660||n||Apr 2011||749||ebay.com|
|2.||Olympus E-620||130 mm||94 mm||60 mm||521 g||500||n||Feb 2009||699||ebay.com|
|3.||Canon T2i||129 mm||98 mm||62 mm||530 g||440||n||Feb 2010||699||ebay.com|
|4.||Nikon D5600||124 mm||97 mm||70 mm||465 g||970||n||Nov 2016||699||amazon.com|
|5.||Nikon D5500||124 mm||97 mm||70 mm||470 g||820||n||Jan 2015||899||ebay.com|
|6.||Nikon D5300||125 mm||98 mm||76 mm||480 g||600||n||Oct 2013||799||ebay.com|
|7.||Nikon D3200||125 mm||96 mm||77 mm||505 g||540||n||Apr 2012||599||ebay.com|
|8.||Nikon D5200||129 mm||98 mm||78 mm||555 g||500||n||Nov 2012||749||ebay.com|
|9.||Nikon D7000||132 mm||105 mm||77 mm||780 g||1050||Y||Sep 2010||1,499||ebay.com|
|10.||Nikon D3100||124 mm||96 mm||75 mm||505 g||550||n||Aug 2010||599||ebay.com|
|11.||Nikon D5000||127 mm||104 mm||80 mm||590 g||510||n||Apr 2009||749||ebay.com|
|12.||Olympus E-600||130 mm||94 mm||60 mm||535 g||500||n||Aug 2009||449||ebay.com|
|13.||Olympus E-420||130 mm||91 mm||53 mm||440 g||500||n||Mar 2008||599||ebay.com|
|14.||Olympus E-520||136 mm||92 mm||68 mm||535 g||750||n||May 2008||699||ebay.com|
|15.||Olympus E-410||130 mm||91 mm||53 mm||435 g||500||n||Mar 2007||699||ebay.com|
|16.||Olympus E-510||136 mm||92 mm||68 mm||538 g||750||n||Mar 2007||799||ebay.com|
|17.||Sony NEX-5N||111 mm||59 mm||38 mm||269 g||460||n||Aug 2011||699||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 naturally be influenced heavily by the price. The retail prices at the time of the camera’s release place the model in the market relative to other models in the producer’s line-up and the competition. The E-620 was somewhat cheaper (by 7 percent) than the D5100 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.
The imaging sensor is at the core of digital cameras and its size is one of the main determining factors 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. Moreover, a large sensor camera will give the photographer more control over depth-of-field in the image and, thus, the ability to better isolate a subject from the background. On the downside, larger sensors tend to be more expensive and lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Nikon D5100 features an APS-C sensor and the Olympus E-620 a Four Thirds sensor. The sensor area in the E-620 is 39 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.5 and 2.0. The sensor in the D5100 has a native 3:2 aspect ratio, while the one in the E-620 offers a 4:3 aspect.
With 16.1MP, the D5100 offers a higher resolution than the E-620 (12.2MP), but the D5100 nevertheless has larger individual pixels (pixel pitch of 4.80μm versus 4.29μm for the E-620) due to its larger sensor. Moreover, the D5100 is a much more recent model (by 2 years and 1 month) than the E-620, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixels.
The resolution advantage of the Nikon D5100 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the D5100 for good quality output (200 dots per inch) amounts to 24.6 x 16.3 inches or 62.6 x 41.5 cm, for very good quality (250 dpi) 19.7 x 13.1 inches or 50.1 x 33.2 cm, and for excellent quality (300 dpi) 16.4 x 10.9 inches or 41.7 x 27.6 cm. The corresponding values for the Olympus E-620 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 Nikon D5100 has a native sensitivity range from ISO 100 to ISO 6400, which can be extended to ISO 100-25600. The corresponding ISO settings for the Olympus E-620 are ISO 100 to ISO 3200 (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.
Consistent information on actual sensor performance is available from DXO Mark for many cameras. 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 review, the D5100 provides substantially higher image quality than the E-620, with an overall score that is 25 points higher. This advantage is based on 2.2 bits higher color depth, 3.3 EV in additional dynamic range, and 1.1 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.
|2.||Olympus E-620||Four Thirds||12.2||4032||3024||none||21.3||10.3||536||55|
|12.||Olympus E-600||Four Thirds||12.2||4032||3024||none||21.5||10.3||541||55|
|13.||Olympus E-420||Four Thirds||10.0||3648||2736||none||21.5||10.4||527||56|
|14.||Olympus E-520||Four Thirds||10.0||3648||2736||none||21.4||10.4||548||55|
|15.||Olympus E-410||Four Thirds||10.0||3648||2736||none||21.1||10.0||494||51|
|16.||Olympus E-510||Four Thirds||10.0||3648||2736||none||21.2||10.0||442||52|
Many modern cameras are not only capable of taking still images, but also of capturing video footage. The D5100 indeed provides movie recording capabilities, while the E-620 does not. The highest resolution format that the D5100 can use is 1080/30p.
Apart from body and sensor, cameras can and do differ across a variety of features. The D5100 and the E-620 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 viewfinders of both cameras offer the same field of view (95%), but the viewfinder of the D5100 has a higher magnification than the one of the E-620 (0.51x vs 0.48x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The table below summarizes some of the other core capabilities of the Nikon D5100 and Olympus E-620 in connection with corresponding information for a sample of similar cameras.
|1.||Nikon D5100||optical||n||3.0 / 921||swivel||n||1/4000s||4.0/s||Y||n|
|2.||Olympus E-620||optical||n||2.7 / 230||swivel||n||1/4000s||4.0/s||Y||Y|
|3.||Canon T2i||optical||n||3.0 / 1040||fixed||n||1/4000s||3.7/s||Y||n|
|4.||Nikon D5600||optical||n||3.2 / 1037||swivel||Y||1/4000s||5.0/s||Y||n|
|5.||Nikon D5500||optical||n||3.2 / 1037||swivel||Y||1/4000s||5.0/s||Y||n|
|6.||Nikon D5300||optical||n||3.2 / 1037||swivel||n||1/4000s||5.0/s||Y||n|
|7.||Nikon D3200||optical||n||3.0 / 921||fixed||n||1/4000s||4.0/s||Y||n|
|8.||Nikon D5200||optical||n||3.0 / 921||swivel||n||1/4000s||5.0/s||Y||n|
|9.||Nikon D7000||optical||Y||3.0 / 921||fixed||n||1/8000s||6.0/s||Y||n|
|10.||Nikon D3100||optical||n||3.0 / 230||fixed||n||1/4000s||3.0/s||Y||n|
|11.||Nikon D5000||optical||n||2.7 / 230||full-flex||n||1/4000s||4.0/s||Y||n|
|12.||Olympus E-600||optical||n||2.7 / 230||swivel||n||1/4000s||4.0/s||Y||Y|
|13.||Olympus E-420||optical||n||2.7 / 215||fixed||n||1/4000s||3.5/s||Y||n|
|14.||Olympus E-520||optical||n||2.7 / 215||fixed||n||1/4000s||3.5/s||Y||Y|
|15.||Olympus E-410||optical||n||2.5 / 215||fixed||n||1/4000s||3.0/s||Y||n|
|16.||Olympus E-510||optical||n||2.5 / 215||fixed||n||1/4000s||3.0/s||Y||Y|
|17.||Sony NEX-5N||optional||n||3.0 / 920||tilting||Y||1/4000s||10.0/s||n||n|
|Notes: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.|
One feature that differentiates the E-620 and the D5100 is in-body image stabilization (IBIS). The E-620 reduces the risk of handshake-induced blur with all attached lenses, while the D5100 offers no blur reduction with lenses that themselves do not provide optical image stabilization.Both cameras have an articulated rear screen that can be turned to be front-facing. This feature will be particularly appreciated by vloggers and photographers who are interested in taking selfies.
The Nikon D5100 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 D5100 writes its imaging data to SDXC cards, while the E-620 uses Compact Flash or xD Picture cards. The E-620 features dual card slots, which can be very useful in case a memory card fails. In contrast, the D5100 only has one slot.
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 Nikon D5100 and Olympus E-620 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Mic / Speaker
|1.||Nikon D5100||Y||mono / mono||Y||-||mini||2.0||-||-||-|
|2.||Olympus E-620||Y||- / -||-||-||-||2.0||-||-||-|
|3.||Canon T2i||Y||stereo / -||Y||-||mini||2.0||-||-||-|
|4.||Nikon D5600||Y||stereo / mono||Y||-||mini||2.0||Y||Y||Y|
|5.||Nikon D5500||Y||stereo / mono||Y||-||mini||2.0||Y||-||-|
|6.||Nikon D5300||Y||stereo / mono||Y||-||mini||2.0||Y||-||-|
|7.||Nikon D3200||Y||mono / mono||Y||-||mini||2.0||-||-||-|
|8.||Nikon D5200||Y||stereo / mono||Y||-||mini||2.0||-||-||-|
|9.||Nikon D7000||Y||mono / mono||Y||-||mini||2.0||-||-||-|
|10.||Nikon D3100||Y||mono / mono||-||-||mini||2.0||-||-||-|
|11.||Nikon D5000||Y||mono / mono||-||-||mini||2.0||-||-||-|
|12.||Olympus E-600||Y||- / -||-||-||-||2.0||-||-||-|
|13.||Olympus E-420||Y||- / -||-||-||-||2.0||-||-||-|
|14.||Olympus E-520||Y||- / -||-||-||-||2.0||-||-||-|
|15.||Olympus E-410||Y||- / -||-||-||-||2.0||-||-||-|
|16.||Olympus E-510||Y||- / -||-||-||-||2.0||-||-||-|
|17.||Sony NEX-5N||Y||stereo / mono||-||-||mini||2.0||-||-||-|
Both the D5100 and the E-620 have been discontinued, but can regularly be found used on ebay. The E-620 was replaced by the Olympus E-600, while the D5100 was followed by the Nikon D5200. Further information on the features and operation of the D5100 and E-620 can be found, respectively, in the Nikon D5100 Manual (free pdf) or the online Olympus E-620 Manual.
So what is the bottom line? Which of the two cameras – the Nikon D5100 or the Olympus E-620 – 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.
Advantages of the Nikon D5100:
- More detail: Offers more megapixels (16.1 vs 12.2MP) with a 17% higher linear resolution.
- Better image quality: Scores substantially higher (25 points) in the DXO overall assessment.
- Richer colors: Generates images with noticeably better colors (2.2 bits more color depth).
- More dynamic range: Captures a larger spectrum of light and dark details (3.3 EV of extra DR).
- Better low-light sensitivity: Requires less light for good images (1.1 stops ISO advantage).
- Broader imaging potential: Can record not only still images but also 1080/30p movies.
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.51x vs 0.48x).
- 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).
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- Longer lasting: Can take more shots (660 versus 500) on a single battery charge.
- More modern: Reflects 2 years and 1 month of technical progress since the E-620 launch.
Reasons to prefer the Olympus E-620:
- Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
- Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
- More heavily discounted: Has been around for much longer (launched in February 2009).
If the count of individual advantages (bullet points above) is taken as a guide, the D5100 is the clear winner of the match-up (12 : 3 points). However, the relative importance of the various individual camera aspects will vary according to personal preferences and needs, so that you might like to apply corresponding weights to the particular features before making a decision on a new camera. A professional sports photographer will view the differences between cameras in a way that diverges from the perspective of a street photog, and a person interested in family portraits has distinct needs from a landscape 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 Nikon D5100 and the Olympus E-620 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 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 D5100 or the E-620. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.
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.
|1.||Nikon D5100||5/5||+ +||..||76/100||4.5/5||4.5/5||Apr 2011||749||ebay.com|
|2.||Olympus E-620||3/5||88/100||..||72/100||4.5/5||5/5||Feb 2009||699||ebay.com|
|3.||Canon T2i||..||+ +||..||77/100||4/5||4.5/5||Feb 2010||699||ebay.com|
|4.||Nikon D5600||4/5||..||4/5||79/100||4.5/5||4/5||Nov 2016||699||amazon.com|
|5.||Nikon D5500||5/5||+||..||79/100||4.5/5||4.5/5||Jan 2015||899||ebay.com|
|6.||Nikon D5300||4/5||+ +||..||79/100||4.5/5||4.5/5||Oct 2013||799||ebay.com|
|7.||Nikon D3200||5/5||+ +||..||73/100||4.5/5||4.5/5||Apr 2012||599||ebay.com|
|8.||Nikon D5200||4/5||+ +||..||79/100||4.5/5||4.5/5||Nov 2012||749||ebay.com|
|9.||Nikon D7000||4/5||..||..||80/100||4.5/5||4.5/5||Sep 2010||1,499||ebay.com|
|10.||Nikon D3100||5/5||+ +||..||72/100||4.5/5||4.5/5||Aug 2010||599||ebay.com|
|11.||Nikon D5000||..||+ +||..||75/100||4/5||4.5/5||Apr 2009||749||ebay.com|
|12.||Olympus E-600||..||..||..||..||..||4.5/5||Aug 2009||449||ebay.com|
|13.||Olympus E-420||..||85/100||..||+ +||4/5||4.5/5||Mar 2008||599||ebay.com|
|14.||Olympus E-520||..||87/100||..||+ +||4.5/5||4.5/5||May 2008||699||ebay.com|
|15.||Olympus E-410||..||86/100||..||+ +||4/5||4.5/5||Mar 2007||699||ebay.com|
|16.||Olympus E-510||..||89/100||..||+ +||3.5/5||4.5/5||Mar 2007||799||ebay.com|
|17.||Sony NEX-5N||3/5||+ +||..||79/100||4.5/5||4.5/5||Aug 2011||699||ebay.com|
|Notes: (+ +) 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 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.
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. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.
- Canon 1Ds Mark III vs Olympus E-620
- Canon M6 vs Nikon D5100
- Canon SX720 vs Olympus E-620
- Canon T5i vs Nikon D5100
- Leica Q Typ 116 vs Olympus E-620
- Nikon D5100 vs Nikon D700
- Nikon D5100 vs Olympus E-510
- Nikon D5100 vs Panasonic FZ300
- Nikon D5100 vs Sony A7R II
- Nikon Z7 vs Olympus E-620
- Olympus E-620 vs Olympus TG-4
- Olympus E-620 vs Ricoh GR III
Specifications: Nikon D5100 vs Olympus E-620
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||Nikon D5100||Olympus E-620|
|Camera Type||Digital single lens reflex||Digital single lens reflex|
|Camera Lens||Nikon F mount lenses||Four Thirds lenses|
|Launch Date||April 2011||February 2009|
|Launch Price||USD 749||USD 699|
|Sensor Specs||Nikon D5100||Olympus E-620|
|Sensor Format||APS-C Sensor||Four Thirds Sensor|
|Sensor Size||23.6 x 15.7 mm||17.3 x 13.0 mm|
|Sensor Area||370.52 mm2||224.9 mm2|
|Sensor Diagonal||28.3 mm||21.6 mm|
|Sensor Resolution||16.1 Megapixels||12.2 Megapixels|
|Image Resolution||4928 x 3264 pixels||4032 x 3024 pixels|
|Pixel Pitch||4.80 μm||4.29 μm|
|Pixel Density||4.34 MP/cm2||5.42 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||1080/30p Video||no Video|
|ISO Setting||100 - 6,400 ISO||100 - 3,200 ISO|
|ISO Boost||100 - 25,600 ISO||no Enhancement|
|Image Processor||EXPEED 2||TruePic III+|
|DXO Sensor Quality (score)||80||55|
|DXO Color Depth (bits)||23.5||21.3|
|DXO Dynamic Range (EV)||13.6||10.3|
|DXO Low Light (ISO)||1183||536|
|Screen Specs||Nikon D5100||Olympus E-620|
|Viewfinder Type||Optical viewfinder||Optical viewfinder|
|Viewfinder Field of View||95%||95%|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||2.7inch|
|LCD Resolution||921k dots||230k dots|
|LCD Attachment||Swivel screen||Swivel screen|
|Shooting Specs||Nikon D5100||Olympus E-620|
|Focus System||Phase-detect AF||Phase-detect AF|
|Continuous Shooting||4 shutter flaps/s||4 shutter flaps/s|
|Time-Lapse Photography||Intervalometer built-in||no Intervalometer|
|Image Stabilization||Lens stabilization only||In-body stabilization|
|Fill Flash||Built-in Flash||Built-in Flash|
|Storage Medium||SDXC cards||CF or XD cards|
|Single or Dual Card Slots||Single card slot||Dual card slots|
|Connectivity Specs||Nikon D5100||Olympus E-620|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||mini HDMI||no HDMI|
|Microphone Port||External MIC port||no MIC socket|
|Wifi Support||no Wifi||no Wifi|
|Body Specs||Nikon D5100||Olympus E-620|
|Battery Life (CIPA)||660 shots per charge||500 shots per charge|
128 x 97 x 79 mm
(5.0 x 3.8 x 3.1 in)
130 x 94 x 60 mm
(5.1 x 3.7 x 2.4 in)
|Camera Weight||560 g (19.8 oz)||521 g (18.4 oz)|
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