Nikon P7800 vs Olympus E-420
The Nikon Coolpix P7800 and the Olympus E-420 are two digital cameras that were officially introduced, respectively, in September 2013 and March 2008. The P7800 is a fixed lens compact, while the E-420 is a DSLR. The cameras are based on a 1/1.7-inch (P7800) and a Four Thirds (E-420) sensor. The Nikon has a resolution of 12 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.
Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon Coolpix P7800 and the Olympus E-420? 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 P7800 and the Olympus E-420 are illustrated 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-420 is notably larger (27 percent) than the Nikon P7800. In this context, it is worth noting that neither the P7800 nor the E-420 are weather-sealed.
The above size and weight comparisons are to some extent incomplete and possibly misleading, as the P7800 has a lens built in, whereas the E-420 is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup. You can compare the optics available for the E-420 and their specifications in the Four Thirds Lens Catalog.
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 P7800||4.7 in||3.1 in||2.0 in||14.1 oz||350||n||Sep 2013||549|
|Olympus E-420||5.1 in||3.6 in||2.1 in||15.5 oz||500||n||Mar 2008||599|
|Canon G16||4.3 in||3.0 in||1.6 in||12.6 oz||360||n||Aug 2013||549|
|Canon S120||3.9 in||2.3 in||1.1 in||7.7 oz||230||n||Aug 2013||449|
|Canon G15||4.2 in||3.0 in||1.6 in||12.4 oz||350||n||Sep 2012||499|
|Canon G12||4.4 in||3.0 in||1.9 in||14.1 oz||370||n||Sep 2010||499|
|Fujifilm X30||4.7 in||2.8 in||2.4 in||14.9 oz||470||n||Aug 2014||599|
|Fujifilm X20||4.6 in||2.8 in||2.2 in||12.5 oz||270||n||Jan 2013||599|
|Fujifilm X10||4.6 in||2.8 in||2.2 in||12.3 oz||270||n||Sep 2011||599|
|Olympus E-450||5.1 in||3.6 in||2.1 in||15.5 oz||500||n||Mar 2009||499|
|Olympus E-620||5.1 in||3.7 in||2.4 in||18.4 oz||500||n||Feb 2009||699|
|Olympus E-520||5.4 in||3.6 in||2.7 in||18.9 oz||750||n||May 2008||699|
|Olympus E-410||5.1 in||3.6 in||2.1 in||15.3 oz||500||n||Mar 2007||699|
|Olympus E-400||5.1 in||3.6 in||2.1 in||15.3 oz||500||n||Sep 2006||699|
|Panasonic LF1||4.1 in||2.4 in||1.1 in||6.8 oz||250||n||Apr 2013||499|
|Panasonic LX7||4.4 in||2.7 in||1.8 in||10.5 oz||330||n||Jul 2012||499|
|Pentax MX-1||4.8 in||2.4 in||2.0 in||13.8 oz||290||n||Jan 2013||499|
Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
(1) Number of images that can be taken on a full battery charge according to the CIPA-standard; (2) Official announcement.
The price is, of course, an important factor in any camera decision. 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 P7800 was launched at a lower price than the E-420, despite having a lens built in. 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 size of the sensor inside a digital camera is one of the key determinants of image quality. All other things equal, a large sensor will have larger individual pixel-units that offer better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixels in a sensor of the same technological generation. Furthermore, a large sensor camera will give the photographer more possibilities to use shallow depth-of-field in order to isolate a subject from the background. On the downside, larger sensors are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Nikon P7800 features a 1/1.7-inch sensor and the Olympus E-420 a Four Thirds sensor. The sensor area in the E-420 is 423 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 4.5 and 2.0. Both cameras feature a native aspect ratio (sensor width to sensor height) of 4:3.
Despite having a smaller sensor, the Nikon P7800 offers a higher resolution of 12 megapixels, compared with 10 MP of the Olympus E-420. This megapixels advantage comes at the cost of a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 1.89μm versus 4.74μm for the E-420). However, it should be noted that the P7800 is much more recent (by 5 years and 6 months) than the E-420, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently.
The resolution advantage of the Nikon P7800 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the P7800 for good quality output (200 dots per inch) amounts to 20 x 15 inches or 50.8 x 38.1 cm, for very good quality (250 dpi) 16 x 12 inches or 40.6 x 30.5 cm, and for excellent quality (300 dpi) 13.3 x 10 inches or 33.9 x 25.4 cm. The corresponding values for the Olympus E-420 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 Nikon Coolpix P7800 has a native sensitivity range from ISO 80 to ISO 3200, which can be extended to ISO 80-6400. The corresponding ISO settings for the Olympus E-420 are ISO 100 to ISO 1600 (no boost).
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.
|Olympus E-420||Four Thirds||10.0||3648||2736||none||21.5||10.4||527||56|
|Olympus E-450||Four Thirds||10.0||3648||2736||none||21.5||10.5||512||56|
|Olympus E-620||Four Thirds||12.2||4032||3024||none||21.3||10.3||536||55|
|Olympus E-520||Four Thirds||10.0||3648||2736||none||21.4||10.4||548||55|
|Olympus E-410||Four Thirds||10.0||3648||2736||none||21.1||10.0||494||51|
|Olympus E-400||Four Thirds||10.0||3648||2736||none||..||..||..||..|
Many modern cameras are not only capable of taking still images, but also of capturing video footage. The P7800 indeed provides movie recording capabilities, while the E-420 does not. The highest resolution format that the P7800 can use is 1080/30p.
Apart from body and sensor, cameras can and do differ across a variety of features. For example, the P7800 has an electronic viewfinder (921k dots), while the E-420 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 following table reports on some other key feature differences and similarities of the Nikon P7800, the Olympus E-420, and comparable cameras.
The Nikon P7800 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 P7800 writes its imaging data to SDXC cards, while the E-420 uses Compact Flash or xD Picture cards. The E-420 features dual card slots, which can be very useful in case a memory card fails. In contrast, the P7800 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 Coolpix P7800 and Olympus E-420 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
Both the P7800 and the E-420 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 Nikon and Olympus. 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 how do things add up? Is the Nikon P7800 better than the Olympus E-420 or vice versa? A synthesis of the relative strong points of each of the models is listed below.
Reasons to prefer the Nikon Coolpix P7800:
- More detail: Offers more megapixels (12 vs 10MP) with a 10% higher linear resolution.
- More dynamic range: Captures a larger spectrum of light and dark details (1.3 EV of extra DR).
- Broader imaging potential: Can record not only still images but also 1080/30p movies.
- More framing info: Has an electronic viewfinder that displays shooting data.
- 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 215k dots).
- 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 burst: Shoots at higher frequency (8 vs 3.5 flaps/sec) to capture the decisive moment.
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- Ready to shoot: Comes with a built-in lens, while the E-420 requires a separate lens.
- More compact: Is smaller (119x78mm vs 130x91mm) and thus needs less room in the bag.
- Less heavy: Is lighter even though it comes with a built-in lens (unlike the E-420).
- Sharper images: Has hand-shake reducing image stabilization built-in.
- More affordable: Was introduced at a lower price, despite coming with a built-in lens.
- More modern: Reflects 5 years and 6 months of technical progress since the E-420 launch.
Arguments in favor of the Olympus E-420:
- Better low-light sensitivity: Can shoot in dim conditions (1.4 stops ISO advantage).
- Brighter framing: Features an optical viewfinder for clear, lag-free composition.
- More flexible: Makes it possible to change lenses and thus to use specialty optics.
- Longer lasting: Gets more shots (500 versus 350) out of a single battery charge.
- 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 March 2008).
If the number of relative strengths (bullet points above) is taken as a guide, the P7800 is the clear winner of the match-up (16 : 6 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 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 Nikon P7800 and the Olympus E-420 place the cameras among the top in their class? Find out in the latest Best Travel-Zoom Camera and Best DSLR Camera listings 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 P7800 or the E-420. 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 (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 P7800||..||..||4/5||3.5/5||4.5/5||Sep 2013||549|
|Olympus E-420||85/100||+ +||4/5||o||4.5/5||Mar 2008||599|
|Canon G16||+||..||4.5/5||4.5/5||4.5/5||Aug 2013||549|
|Canon S120||+ +||..||4.5/5||o||4.5/5||Aug 2013||449|
|Canon G15||+||76/100||4.5/5||4.5/5||4.5/5||Sep 2012||499|
|Canon G12||+||73/100||4.5/5||4.5/5||4.5/5||Sep 2010||499|
|Fujifilm X30||..||76/100||4.5/5||4/5||4.5/5||Aug 2014||599|
|Fujifilm X20||+ +||77/100||4.5/5||..||5/5||Jan 2013||599|
|Fujifilm X10||..||76/100||4/5||3.5/5||4.5/5||Sep 2011||599|
|Olympus E-450||..||..||4/5||..||4/5||Mar 2009||499|
|Olympus E-620||88/100||72/100||4.5/5||o||5/5||Feb 2009||699|
|Olympus E-520||87/100||+ +||4.5/5||4/5||4.5/5||May 2008||699|
|Olympus E-410||86/100||+ +||4/5||o||4.5/5||Mar 2007||699|
|Olympus E-400||85/100||..||4/5||..||4/5||Sep 2006||699|
|Panasonic LF1||+||..||4/5||..||4.5/5||Apr 2013||499|
|Panasonic LX7||+ +||75/100||4/5||5/5||4.5/5||Jul 2012||499|
|Pentax MX-1||..||74/100||4/5||3.5/5||4/5||Jan 2013||499|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
The review scores listed above should be treated with care, though. The ratings are only valid when referring to cameras in the same category and of the same age. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. It should also be noted that some of the review sites have over time altered the way they render their verdicts.
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 200D vs Nikon P7800
- Canon 7D vs Olympus E-420
- Canon G16 vs Nikon P7800
- Canon G7 X Mark II vs Nikon P7800
- Canon R vs Nikon P7800
- Canon S120 vs Nikon P7800
- Leica Q Typ 116 vs Nikon P7800
- Nikon D5600 vs Olympus E-420
- Nikon W150 vs Olympus E-420
- Olympus E-420 vs Olympus E-P3
- Olympus E-420 vs Panasonic G95
- Olympus E-420 vs Sony RX10 II
Specifications: Nikon P7800 vs Olympus E-420
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 P7800||Olympus E-420|
|Camera Type||Fixed lens compact camera||Digital single lens reflex|
|Camera Lens||28-200mm f/2.0-4.0||Four Thirds lenses|
|Launch Date||September 2013||March 2008|
|Launch Price||USD 549||USD 599|
|Sensor Specs||Nikon P7800||Olympus E-420|
|Sensor Format||1/1.7" Sensor||Four Thirds Sensor|
|Sensor Size||7.6 x 5.7 mm||17.3 x 13.0 mm|
|Sensor Area||43.32 mm2||224.9 mm2|
|Sensor Diagonal||9.5 mm||21.6 mm|
|Sensor Resolution||12 Megapixels||10 Megapixels|
|Image Resolution||4000 x 3000 pixels||3648 x 2736 pixels|
|Pixel Pitch||1.89 μm||4.74 μm|
|Pixel Density||27.70 MP/cm2||4.44 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||1080/30p Video||no Video|
|ISO Setting||80 - 3,200 ISO||100 - 1,600 ISO|
|ISO Boost||80 - 6,400 ISO||no Enhancement|
|DXO Sensor Quality (score)||54||56|
|DXO Color Depth (bits)||21.2||21.5|
|DXO Dynamic Range (EV)||11.7||10.4|
|DXO Low Light (ISO)||200||527|
|Screen Specs||Nikon P7800||Olympus E-420|
|Viewfinder Type||Electronic viewfinder||Optical viewfinder|
|Viewfinder Field of View||100%||95%|
|Viewfinder Resolution||921k dots|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||2.7inch|
|LCD Resolution||921k dots||215k dots|
|LCD Attachment||Swivel screen||Fixed screen|
|Shooting Specs||Nikon P7800||Olympus E-420|
|Focus System||Contrast-detect AF||Phase-detect AF|
|Continuous Shooting||8 shutter flaps/s||3.5 shutter flaps/s|
|Time-Lapse Photography||Intervalometer built-in||no Intervalometer|
|Fill Flash||Build-in Flash||Build-in Flash|
|Storage Medium||SDXC cards||CF or XD cards|
|Second Storage Option||Single card slot||Dual card slots|
|Connectivity Specs||Nikon P7800||Olympus E-420|
|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 P7800||Olympus E-420|
|Battery Life (CIPA)||350 shots per charge||500 shots per charge|
119 x 78 x 50 mm
(4.7 x 3.1 x 2.0 in)
130 x 91 x 53 mm
(5.1 x 3.6 x 2.1 in)
|Camera Weight||399 g (14.1 oz)||440 g (15.5 oz)|
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