Nikon Z7 vs Olympus E-3
The Nikon Z7 and the Olympus E-3 are two digital cameras that were revealed to the public, respectively, in August 2018 and October 2007. The Z7 is a mirrorless interchangeable lens camera, while the E-3 is a DSLR. The cameras are based on a full frame (Z7) and a Four Thirds (E-3) sensor. The Nikon has a resolution of 45.4 megapixels, whereas the Olympus provides 10 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
|Nikon Z7||Olympus E-3|
|Mirrorless system camera||Digital single lens reflex|
|Nikon Z mount lenses||Four Thirds lenses|
|45.4 MP, Full Frame Sensor||10 MP, Four Thirds Sensor|
|4K/30p Video||no Video|
|ISO 64-25600 (32-102400)||ISO 100-3200|
|Electronic viewfinder (3690k dots)||Optical viewfinder|
|3.2" LCD, 2100k dots||2.5" LCD, 230k dots|
|Tilting touchscreen||Swivel screen (not touch-sensitive)|
|9 shutter flaps per second||5 shutter flaps per second|
|In-body stabilization||In-body stabilization|
|Weathersealed body||Weathersealed body|
|330 shots per battery charge||750 shots per battery charge|
|134 x 101 x 67 mm, 675 g||142 x 116 x 75 mm, 876 g|
Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon Z7 and the Olympus E-3? 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.
An illustration of the physical size and weight of the Nikon Z7 and the Olympus E-3 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 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-3 is notably larger (22 percent) than the Nikon Z7. Moreover, the E-3 is markedly heavier (30 percent) than the Z7. In this context, it is worth noting that both cameras are splash and dust-proof and can, hence, be used in inclement weather conditions or harsh environments.
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. Hence, you might want to study and compare the specifications of available lenses in order to get the full picture of the size and weight of the two camera systems.
Concerning battery life, the Z7 gets 330 shots out of its EN-EL15b battery, while the E-3 can take 750 images on a single charge of its BLM-1 power pack. The power pack in the Z7 can be charged via the USB port, so that it is not always necessary to take the battery charger along when travelling.
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, just select a new right or left comparator from among the camera models in the table. Alternatively, you can also move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.
|Nikon Z7»||134 mm||101 mm||67 mm||675 g||330||Y||Aug 2018||3,399||Nikon Z7|
|Olympus E-3«||142 mm||116 mm||75 mm||876 g||750||Y||Oct 2007||1,699||-||Olympus E-3|
|Nikon Z6« »||134 mm||101 mm||67 mm||675 g||310||Y||Aug 2018||1,999||Nikon Z6|
|Nikon D850« »||146 mm||124 mm||79 mm||1005 g||1840||Y||Jul 2017||3,299||Nikon D850|
|Olympus E-5« »||142 mm||117 mm||75 mm||873 g||750||Y||Sep 2010||1,699||-||Olympus E-5|
|Olympus E-30« »||142 mm||108 mm||75 mm||701 g||750||n||Nov 2008||1,299||-||Olympus E-30|
|Olympus E-520« »||136 mm||92 mm||68 mm||535 g||750||n||May 2008||699||-||Olympus E-520|
|Olympus E-510« »||136 mm||92 mm||68 mm||538 g||750||n||Mar 2007||799||-||Olympus E-510|
|Olympus E-1« »||141 mm||104 mm||81 mm||738 g||750||Y||Jun 2003||1,699||-||Olympus E-1|
|Panasonic S1« »||149 mm||110 mm||97 mm||1017 g||400||Y||Feb 2019||2,499||Panasonic S1|
|Panasonic S1R« »||149 mm||110 mm||97 mm||1016 g||380||Y||Feb 2019||3,699||Panasonic S1R|
|Sony A7 III« »||127 mm||96 mm||74 mm||650 g||610||Y||Feb 2018||1,999||Sony A7 III|
|Sony A7R III« »||127 mm||96 mm||74 mm||650 g||650||Y||Oct 2017||3,199||-||Sony A7R III|
|Sony A99 II« »||143 mm||104 mm||76 mm||849 g||490||Y||Sep 2016||3,199||Sony A99 II|
|Sony A7R II« »||127 mm||96 mm||60 mm||625 g||290||Y||Jun 2015||3,199||-||Sony A7R II|
|Sony A7S II« »||127 mm||96 mm||60 mm||627 g||370||Y||Sep 2015||2,999||Sony A7S II|
|Sony A99« »||147 mm||111 mm||78 mm||812 g||500||Y||Sep 2012||2,799||-||Sony A99|
|Note: Measurements and pricing do not include easily detachable parts, such as 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-3 was launched at a markedly lower price (by 50 percent) than the Z7, 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.
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. 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 Z7 features a full frame sensor and the Olympus E-3 a Four Thirds sensor. The sensor area in the E-3 is 74 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.0 and 2.0. The sensor in the Z7 has a native 3:2 aspect ratio, while the one in the E-3 offers a 4:3 aspect.
With 45.4MP, the Z7 offers a higher resolution than the E-3 (10MP), but the Z7 has smaller individual pixels (pixel pitch of 4.35μm versus 4.74μm for the E-3). However, the Z7 is a much more recent model (by 10 years and 10 months) than the E-3, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixels. Coming back to sensor resolution, it should be mentioned that the Z7 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
The resolution advantage of the Nikon Z7 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the Z7 for good quality output (200 dots per inch) amounts to 41.3 x 27.5 inch or 104.9 x 69.9 cm, for very good quality (250 dpi) 33 x 22 inch or 83.9 x 55.9 cm, and for excellent quality (300 dpi) 27.5 x 18.3 inch or 69.9 x 46.6 cm. The corresponding values for the Olympus E-3 are 18.2 x 13.7 inch or 46.3 x 34.7 cm for good quality, 14.6 x 10.9 inch or 37.1 x 27.8 cm for very good quality, and 12.2 x 9.1 inch or 30.9 x 23.2 cm for excellent quality prints.
The Z7 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.
The Nikon Z7 has a native sensitivity range from ISO 64 to ISO 25600, which can be extended to ISO 32-102400. The corresponding ISO settings for the Olympus E-3 are ISO 100 to ISO 3200 (no boost).
Consistent information on actual sensor performance is available from DXO Mark for many cameras. This service determines an overall sensor rating, as well as sub-scores for low-light sensitivity ("DXO Sports"), dynamic range ("DXO Landscape"), and color depth ("DXO Portrait"). Of the two cameras under review, the Z7 provides substantially higher image quality than the E-3, with an overall score that is 43 points higher. This advantage is based on 4.7 bits higher color depth, 4.1 EV in additional dynamic range, and 2.2 stops in additional low light sensitivity. The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.
|Nikon Z7»||Full Frame||45.4||8256||5504||4K/30p||26.3||14.6||2668||99||Nikon Z7|
|Olympus E-3«||Four Thirds||10.0||3648||2736||-||21.6||10.5||571||56||Olympus E-3|
|Nikon Z6« »||Full Frame||24.3||6048||4024||4K/30p||25.3||14.3||3299||95||Nikon Z6|
|Nikon D850« »||Full Frame||45.4||8256||5504||4K/30p||26.4||14.8||2660||100||Nikon D850|
|Olympus E-5« »||Four Thirds||12.2||4032||3024||720/30p||21.6||10.5||519||56||Olympus E-5|
|Olympus E-30« »||Four Thirds||12.2||4032||3024||-||21.3||10.4||530||55||Olympus E-30|
|Olympus E-520« »||Four Thirds||10.0||3648||2736||-||21.4||10.4||548||55||Olympus E-520|
|Olympus E-510« »||Four Thirds||10.0||3648||2736||-||21.2||10.0||442||52||Olympus E-510|
|Olympus E-1« »||Four Thirds||4.9||2560||1920||-||-||-||-||-||Olympus E-1|
|Panasonic S1« »||Full Frame||24.0||6000||4000||4K/60p||25.2||14.5||3333||95||Panasonic S1|
|Panasonic S1R« »||Full Frame||46.7||8368||5584||4K/60p||26.4||14.1||3525||100||Panasonic S1R|
|Sony A7 III« »||Full Frame||24.0||6000||4000||4K/30p||25.0||14.7||3730||96||Sony A7 III|
|Sony A7R III« »||Full Frame||42.2||7952||5304||4K/30p||26.0||14.7||3523||100||Sony A7R III|
|Sony A99 II« »||Full Frame||42.2||7952||5304||4K/30p||25.4||13.4||2317||92||Sony A99 II|
|Sony A7R II« »||Full Frame||42.2||7952||5304||4K/30p||26.0||13.9||3434||98||Sony A7R II|
|Sony A7S II« »||Full Frame||12.0||4240||2832||4K/30p||23.6||13.3||2993||85||Sony A7S II|
|Sony A99« »||Full Frame||24.0||6000||4000||1080/60p||25.0||14.0||1555||89||Sony A99|
Many modern cameras cannot only take still pictures, but also record videos. The Z7 indeed provides movie recording capabilities, while the E-3 does not. The highest resolution format that the Z7 can use is 4K/30p.
Apart from body and sensor, cameras can and do differ across a range of features. For example, the Z7 has an electronic viewfinder (3690k dots), while the E-3 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 viewfinders of both cameras offer the same field of view (100%), but the viewfinder of the Z7 has a higher magnification than the one of the E-3 (0.80x vs 0.575x), 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 Z7 and Olympus E-3 in connection with corresponding information for a sample of similar cameras.
|Nikon Z7»||3690||Y||3.2||2100||tilting||Y||1/8000s||9.0||n||Y||Nikon Z7|
|Olympus E-3«||optical||Y||2.5||230||swivel||n||1/8000s||5.0||Y||Y||Olympus E-3|
|Nikon Z6« »||3690||Y||3.2||2100||tilting||Y||1/8000s||12.0||n||Y||Nikon Z6|
|Nikon D850« »||optical||Y||3.2||2359||tilting||Y||1/8000s||9.0||n||n||Nikon D850|
|Olympus E-5« »||optical||Y||3.0||920||swivel||n||1/8000s||5.0||Y||Y||Olympus E-5|
|Olympus E-30« »||optical||Y||2.7||230||swivel||n||1/8000s||5.0||Y||Y||Olympus E-30|
|Olympus E-520« »||optical||n||2.7||215||fixed||n||1/4000s||3.5||Y||Y||Olympus E-520|
|Olympus E-510« »||optical||n||2.5||215||fixed||n||1/4000s||3.0||Y||Y||Olympus E-510|
|Olympus E-1« »||optical||Y||1.8||134||fixed||n||1/4000s||3.0||n||n||Olympus E-1|
|Panasonic S1« »||5760||Y||3.2||2100||full-flex||Y||1/8000s||9.0||n||Y||Panasonic S1|
|Panasonic S1R« »||5760||Y||3.2||2100||full-flex||Y||1/8000s||9.0||n||Y||Panasonic S1R|
|Sony A7 III« »||2359||n||3.0||922||tilting||Y||1/8000s||10.0||n||Y||Sony A7 III|
|Sony A7R III« »||3686||n||3.0||1440||tilting||Y||1/8000s||10.0||n||Y||Sony A7R III|
|Sony A99 II« »||2400||Y||3.0||1229||full-flex||n||1/8000s||12.0||n||Y||Sony A99 II|
|Sony A7R II« »||2400||n||3.0||1229||tilting||n||1/8000s||5.0||n||Y||Sony A7R II|
|Sony A7S II« »||2400||n||3.0||1229||tilting||n||1/8000s||5.0||n||Y||Sony A7S II|
|Sony A99« »||2359||Y||3.0||1229||full-flex||n||1/8000s||6.0||n||Y||Sony A99|
One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The Z7 has a touchscreen, while the E-3 has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.The E-3 has an articulated screen that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in taking selfies. In contrast, the Z7 does not have a selfie-screen.
The Nikon Z7 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 Z7 writes its imaging data to XQD cards, while the E-3 uses Compact Flash or xD Picture cards. The E-3 features dual card slots, which can be very useful in case a memory card fails. In contrast, the Z7 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 Z7 and Olympus E-3 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
|Nikon Z7»||Y||stereo||mono||Y||Y||micro||3.1||Y||-||Y||Nikon Z7|
|Olympus E-3«||Y||-||-||-||-||-||2.0||-||-||-||Olympus E-3|
|Nikon Z6« »||Y||stereo||mono||Y||Y||micro||3.1||Y||-||Y||Nikon Z6|
|Nikon D850« »||Y||stereo||mono||Y||Y||mini||3.0||Y||Y||Y||Nikon D850|
|Olympus E-5« »||Y||stereo||-||-||-||mini||2.0||-||-||-||Olympus E-5|
|Olympus E-30« »||Y||-||-||-||-||-||2.0||-||-||-||Olympus E-30|
|Olympus E-520« »||Y||-||-||-||-||-||2.0||-||-||-||Olympus E-520|
|Olympus E-510« »||Y||-||-||-||-||-||2.0||-||-||-||Olympus E-510|
|Olympus E-1« »||Y||-||-||-||-||-||2.0||-||-||-||Olympus E-1|
|Panasonic S1« »||Y||stereo||mono||Y||Y||full||3.1||Y||-||Y||Panasonic S1|
|Panasonic S1R« »||Y||stereo||mono||Y||Y||full||3.1||Y||-||Y||Panasonic S1R|
|Sony A7 III« »||Y||stereo||mono||Y||Y||micro||3.1||Y||Y||Y||Sony A7 III|
|Sony A7R III« »||Y||stereo||mono||Y||Y||micro||3.1||Y||Y||Y||Sony A7R III|
|Sony A99 II« »||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||Y||Sony A99 II|
|Sony A7R II« »||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-||Sony A7R II|
|Sony A7S II« »||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-||Sony A7S II|
|Sony A99« »||Y||stereo||mono||Y||Y||mini||2.0||-||-||-||Sony A99|
It is notable that the Z7 offers wifi support, while the E-3 does not. Wifi can be a very convenient means to transfer image data to an off-camera location.
Studio photographers will appreciate that the Olympus E-3 (unlike the Z7) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
The Z7 is a recent model that features in the current product line-up of Nikon. In contrast, the E-3 has been discontinued (but it can be found pre-owned on eBay). As a replacement in the same line of cameras, the E-3 was succeeded by the Olympus E-5. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Nikon and Olympus websites.
So what is the bottom line? Is there a clear favorite between the Nikon Z7 and the Olympus E-3? Which camera is better? The listing below highlights the relative strengths of the two models.
Advantages of the Nikon Z7:
- More detail: Offers more megapixels (45.4 vs 10MP) with a 118% higher linear resolution.
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- Better image quality: Scores substantially higher (43 points) in the DXO overall assessment.
- Richer colors: Generates images with noticeably better colors (4.7 bits more color depth).
- More dynamic range: Captures a larger spectrum of light and dark details (4.1 EV of extra DR).
- Better low-light sensitivity: Requires less light for good images (2.2 stops ISO advantage).
- Broader imaging potential: Can record not only still images but also 4K/30p movies.
- Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
- More framing info: Has an electronic viewfinder that displays shooting data.
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.80x vs 0.575x).
- Larger screen: Has a bigger rear LCD (3.2" vs 2.5") for image review and settings control.
- More detailed LCD: Has a higher resolution rear screen (2100k vs 230k dots).
- Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
- Faster burst: Shoots at higher frequency (9 vs 5 flaps/sec) to capture the decisive moment.
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- More compact: Is smaller (134x101mm vs 142x116mm) and thus needs less room in the bag.
- Less heavy: Is lighter (by 201g or 23 percent) and hence easier to carry around.
- Easier travel charging: Can be conveniently charged via its USB port.
- More legacy lens friendly: Can take a broad range of non-native lenses via adapters.
- Faster data transfer: Supports a more advanced USB protocol (3.1 vs 2.0).
- Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
- Easier wireless transfer: Supports Bluetooth for image sharing without cables.
- More modern: Reflects 10 years and 10 months of technical progress since the E-3 launch.
Reasons to prefer the Olympus E-3:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- Brighter framing: Features an optical viewfinder for clear, lag-free composition.
- 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.
- Longer lasting: Gets more shots (750 versus 330) out of a single battery charge.
- Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
- Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
- Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
- More affordable: Was introduced into a lower priced category (50 percent cheaper at launch).
- More heavily discounted: Has been around for much longer (launched in October 2007).
If the count of individual advantages (bullet points above) is taken as a guide, the Z7 is the clear winner of the match-up (22 : 10 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.
How about other alternatives? Do the specifications of the Nikon Z7 and the Olympus E-3 place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera and Best DSLR Camera listings whether the two cameras rank among the cream of the crop.
In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it remains incomplete and does no justice, for example, to the way the Z7 or the E-3 perform in practice. 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.
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 (cameralabs, dpreview, ephotozine, imaging-resource, and photographyblog). 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.
|Nikon Z7»||+||89/100||4.5/5||4.5/5||5/5||Aug 2018||3,399||Nikon Z7|
|Olympus E-3«||88/100||+ +||o||o||4/5||Oct 2007||1,699||-||Olympus E-3|
|Nikon Z6« »||-||-||4.5/5||4.5/5||5/5||Aug 2018||1,999||Nikon Z6|
|Nikon D850« »||+ +||89/100||4.5/5||5/5||5/5||Jul 2017||3,299||Nikon D850|
|Olympus E-5« »||-||75/100||4/5||-||4.5/5||Sep 2010||1,699||-||Olympus E-5|
|Olympus E-30« »||-||71/100||4.5/5||-||4/5||Nov 2008||1,299||-||Olympus E-30|
|Olympus E-520« »||87/100||+ +||4.5/5||4/5||4.5/5||May 2008||699||-||Olympus E-520|
|Olympus E-510« »||89/100||+ +||3.5/5||o||4.5/5||Mar 2007||799||-||Olympus E-510|
|Olympus E-1« »||-||+||o||o||-||Jun 2003||1,699||-||Olympus E-1|
|Panasonic S1« »||+ +||88/100||4.5/5||-||4/5||Feb 2019||2,499||Panasonic S1|
|Panasonic S1R« »||-||89/100||4.5/5||-||4.5/5||Feb 2019||3,699||Panasonic S1R|
|Sony A7 III« »||+ +||89/100||5/5||5/5||5/5||Feb 2018||1,999||Sony A7 III|
|Sony A7R III« »||+ +||90/100||4.5/5||5/5||5/5||Oct 2017||3,199||-||Sony A7R III|
|Sony A99 II« »||-||85/100||4.5/5||4.5/5||4.5/5||Sep 2016||3,199||Sony A99 II|
|Sony A7R II« »||+ +||90/100||5/5||4.5/5||5/5||Jun 2015||3,199||-||Sony A7R II|
|Sony A7S II« »||+||-||4.5/5||5/5||5/5||Sep 2015||2,999||Sony A7S II|
|Sony A99« »||-||84/100||4.5/5||o||4.5/5||Sep 2012||2,799||-||Sony A99|
|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 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. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.
Specifications: Nikon Z7 vs Olympus E-3
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 Z7||Olympus E-3|
|Camera Type||Mirrorless system camera||Digital single lens reflex|
|Camera Lens||Nikon Z mount lenses||Four Thirds lenses|
|Launch Date||August 2018||October 2007|
|Launch Price||USD 3399||USD 1699|
|Sensor Specs||Nikon Z7||Olympus E-3|
|Sensor Format||Full Frame Sensor||Four Thirds Sensor|
|Sensor Size||35.9 x 23.9 mm||17.3 x 13.0 mm|
|Sensor Area||858.01 mm2||224.9 mm2|
|Sensor Diagonal||43.1 mm||21.6 mm|
|Sensor Resolution||45.4 Megapixels||10 Megapixels|
|Image Resolution||8256 x 5504 pixels||3648 x 2736 pixels|
|Pixel Pitch||4.35 μm||4.74 μm|
|Pixel Density||5.30 MP/cm2||4.44 MP/cm2|
|Moiré control||no AA filter||Anti-Alias filter|
|Movie Capability||4K/30p Video||no Video|
|ISO Setting||64-25600 ISO||100-3200 ISO|
|ISO Boost||32-102400 ISO||no Enhancement|
|Image Processor||EXPEED 6||TruePic III|
|DXO Sensor Quality (score)||99||56|
|DXO Color Depth (bits)||26.3||21.6|
|DXO Dynamic Range (EV)||14.6||10.5|
|DXO Low Light (ISO)||2668||571|
|Screen Specs||Nikon Z7||Olympus E-3|
|Viewfinder Type||Electronic viewfinder||Optical viewfinder|
|Viewfinder Field of View||100%||100%|
|Viewfinder Resolution||3690k dots|
|Top-Level Screen||Control Panel||Control Panel|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.2 inch||2.5 inch|
|LCD Resolution||2100k dots||230k dots|
|LCD Attachment||Tilting screen||Swivel screen|
|Touch Input||Touchscreen||no Touchscreen|
|Shooting Specs||Nikon Z7||Olympus E-3|
|Autofocus System||On-Sensor Phase-detect||Phase-detect AF|
|Manual Focusing Aid||Focus Peaking||No Peaking Feature|
|Continuous Shooting||9 shutter flaps/s||5 shutter flaps/s|
|Shutter Life Expectancy||200 000 actuations||150 000 actuations|
|Time-Lapse Photography||Intervalometer built-in||no Intervalometer|
|Image Stabilization||In-body stabilization||In-body stabilization|
|Fill Flash||no On-Board Flash||Build-in Flash|
|Storage Medium||XQD cards||CF or XD cards|
|Second Storage Option||Single card slot||Dual card slots|
|Connectivity Specs||Nikon Z7||Olympus E-3|
|Studio Flash||no PC Sync||PC Sync socket|
|USB Connector||USB 3.1||USB 2.0|
|HDMI Port||micro HDMI||no HDMI|
|Microphone Port||External MIC port||no MIC socket|
|Headphone Socket||Headphone port||no Headphone port|
|Wifi Support||Wifi built-in||no Wifi|
|Bluetooth Support||Bluetooth built-in||no Bluetooth|
|Body Specs||Nikon Z7||Olympus E-3|
|Environmental Sealing||Weathersealed body||Weathersealed body|
|Battery Life (CIPA)||330 shots per charge||750 shots per charge|
|In-Camera Charging||USB charging||no USB charging|
134 x 101 x 67 mm
(5.3 x 4.0 x 2.6 in)
142 x 116 x 75 mm
(5.6 x 4.6 x 3.0 in)
|Camera Weight||675 g (23.8 oz)||876 g (30.9 oz)|
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