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Nikon D810 vs Olympus E-420

The Nikon D810 and the Olympus E-420 are two digital cameras that were announced, respectively, in June 2014 and March 2008. Both are DSLR (Digital Single Lens Reflex) cameras that are based on a full frame (D810) and a Four Thirds (E-420) sensor. The Nikon has a resolution of 36.2 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.

Headline Specifications
Nikon D810
versus
Olympus E-420
Nikon D810   Olympus E-420
Digital single lens reflex Digital single lens reflex
Nikon F mount lenses Four Thirds lenses
36.2 MP – Full Frame sensor 10 MP – Four Thirds sensor
1080/60p Video no Video
ISO 64-12,800 (32 - 51,200) ISO 100-1,600
Optical viewfinder Optical viewfinder
3.2" LCD – 1229k dots 2.7" LCD – 215k dots
Fixed screen (not touch-sensitive) Fixed screen (not touch-sensitive)
5 shutter flaps per second 3.5 shutter flaps per second
Weathersealed bodynot weather sealed
1200 shots per battery charge500 shots per battery charge
146 x 123 x 82 mm, 980 g 130 x 91 x 53 mm, 440 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon D810 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.

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Body comparison

An illustration of the physical size and weight of the Nikon D810 and the Olympus E-420 is provided 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 width, height and depth measures are rounded to the nearest millimeter.

Size Nikon D810 vs Olympus E-420
Compare D810 versus E-420 top
Comparison D810 or E-420 rear

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 considerably smaller (34 percent) than the Nikon D810. Moreover, the E-420 is substantially lighter (55 percent) than the D810. It is worth mentioning in this context that the D810 is splash and dust resistant, while the E-420 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 Nikon Lens Catalog (D810) and the Four Thirds Lens Catalog (E-420).

Concerning battery life, the D810 gets 1200 shots out of its Nikon EN-EL15 battery, while the E-420 can take 500 images on a single charge of its Olympus BLS-1 power pack.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. If you want to switch the focus of the display and review another camera pair, you can move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.

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Body Specifications
  empty Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price
Street
Price
1.
 
Nikon D810 146 mm 123 mm 82 mm 980 g 1200 Y Jun 2014 US$ 3 299ebay.com
2.
 
Olympus E-420 130 mm 91 mm 53 mm 440 g 500 n Mar 2008 US$ 599ebay.com
3.
 
Canon 5DS 152 mm 116 mm 76 mm 930 g 700 Y Feb 2015 US$ 3 699ebay.com
4.
 
Nikon D4S 160 mm 157 mm 91 mm 1350 g 3020 Y Feb 2014 US$ 6 499ebay.com
5.
 
Nikon D600 141 mm 113 mm 82 mm 850 g 900 Y Sep 2012 US$ 2 099ebay.com
6.
 
Nikon D610 141 mm 113 mm 82 mm 850 g 900 Y Oct 2013 US$ 1 999ebay.com
7.
 
Nikon D700 147 mm 123 mm 77 mm 1074 g 1000 Y Jul 2008 US$ 2 999ebay.com
8.
 
Nikon D750 141 mm 113 mm 78 mm 750 g 1230 Y Sep 2014 US$ 2 299ebay.com
9.
 
Nikon D800 146 mm 123 mm 82 mm 1000 g 900 Y Feb 2012 US$ 2 999ebay.com
10.
 
Nikon D800E 146 mm 123 mm 82 mm 1000 g 900 Y Feb 2012 US$ 3 299ebay.com
11.
 
Nikon D850 146 mm 124 mm 79 mm 1005 g 1840 Y Jul 2017 US$ 3 299 amazon.com
12.
 
Nikon Df 144 mm 110 mm 67 mm 760 g 1400 Y Nov 2013 US$ 2 749ebay.com
13.
 
Olympus E-400 130 mm 91 mm 53 mm 435 g 500 n Sep 2006 US$ 699ebay.com
14.
 
Olympus E-410 130 mm 91 mm 53 mm 435 g 500 n Mar 2007 US$ 699ebay.com
15.
 
Olympus E-450 130 mm 91 mm 53 mm 440 g 500 n Mar 2009 US$ 499ebay.com
16.
 
Olympus E-520 136 mm 92 mm 68 mm 535 g 750 n May 2008 US$ 699ebay.com
17.
 
Olympus E-620 130 mm 94 mm 60 mm 521 g 500 n Feb 2009 US$ 699ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.

Any camera decision will obviously take relative prices into account. The 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-420 was launched at a markedly lower price (by 82 percent) than the D810, 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.

Sensor comparison

The imaging sensor is at the core of digital cameras and its size is one of the main determining factors 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. Further, a large sensor camera will give the photographer additional creative options when using shallow depth-of-field to isolate a subject from its background. On the downside, larger sensors tend to be more expensive and lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Nikon D810 features a full frame sensor and the Olympus E-420 a Four Thirds sensor. The sensor area in the E-420 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 D810 has a native 3:2 aspect ratio, while the one in the E-420 offers a 4:3 aspect.

Nikon D810 and Olympus E-420 sensor measures

With 36.2MP, the D810 offers a higher resolution than the E-420 (10MP), but the D810 nevertheless has larger individual pixels (pixel pitch of 4.88μm versus 4.74μm for the E-420) due to its larger sensor. Moreover, the D810 is a much more recent model (by 6 years and 3 months) than the E-420, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixels. Coming back to sensor resolution, it should be mentioned that the D810 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Nikon D810 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the D810 for good quality output (200 dots per inch) amounts to 36.8 x 24.6 inches or 93.5 x 62.4 cm, for very good quality (250 dpi) 29.4 x 19.6 inches or 74.8 x 49.9 cm, and for excellent quality (300 dpi) 24.5 x 16.4 inches or 62.3 x 41.6 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 D810 has a native sensitivity range from ISO 64 to ISO 12800, which can be extended to ISO 32-51200. The corresponding ISO settings for the Olympus E-420 are ISO 100 to ISO 1600 (no boost).

Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.

D810 versus E-420 MP

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 D810 provides substantially higher image quality than the E-420, with an overall score that is 41 points higher. This advantage is based on 4.2 bits higher color depth, 4.4 EV in additional dynamic range, and 2.4 stops in additional low light sensitivity. The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.

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Sensor Characteristics
  empty Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Nikon D810 Full Frame 36.2 7360 49121080/60p25.714.8285397
2.
 
Olympus E-420 Four Thirds 10.0 3648 2736none21.510.452756
3.
 
Canon 5DS Full Frame 50.3 8688 57921080/30p24.712.4238187
4.
 
Nikon D4S Full Frame 16.2 4928 32801080/60p24.413.3307489
5.
 
Nikon D600 Full Frame 24.2 6016 40161080/30p25.114.2298094
6.
 
Nikon D610 Full Frame 24.2 6016 40161080/30p25.114.4292594
7.
 
Nikon D700 Full Frame 12.1 4256 2832none23.512.2230380
8.
 
Nikon D750 Full Frame 24.2 6016 40161080/60p24.814.5295693
9.
 
Nikon D800 Full Frame 36.2 7360 49121080/30p25.314.4285395
10.
 
Nikon D800E Full Frame 36.2 7360 49121080/30p25.614.3297996
11.
 
Nikon D850 Full Frame 45.4 8256 55044K/30p26.414.82660100
12.
 
Nikon Df Full Frame 16.2 4928 3280none24.613.1327989
13.
 
Olympus E-400 Four Thirds 10.0 3648 2736none21.010.612753
14.
 
Olympus E-410 Four Thirds 10.0 3648 2736none21.110.049451
15.
 
Olympus E-450 Four Thirds 10.0 3648 2736none21.510.551256
16.
 
Olympus E-520 Four Thirds 10.0 3648 2736none21.410.454855
17.
 
Olympus E-620 Four Thirds 12.2 4032 3024none21.310.353655
Note: DXO values in italics represent estimates based on sensor size and age.

Many modern cameras are not only capable of taking still images, but can also record movies. The D810 indeed provides movie recording capabilities, while the E-420 does not. The highest resolution format that the D810 can use is 1080/60p.

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Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. The D810 and the E-420 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 D810 offers a wider field of view (100%) than the one in the E-420 (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the D810 has a higher magnification (0.70x 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 Nikon D810, the Olympus E-420, and comparable cameras.

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Core Features
  empty 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.
 
Nikon D810optical Y3.2 / 1229 fixed n 1/8000s 5.0/s Y n
2.
 
Olympus E-420optical n2.7 / 215 fixed n 1/4000s 3.5/s Y n
3.
 
Canon 5DSoptical Y3.2 / 1040 fixed n 1/8000s 5.0/s n n
4.
 
Nikon D4Soptical Y3.2 / 921 fixed n 1/8000s 11.0/s n n
5.
 
Nikon D600optical Y3.0 / 921 fixed n 1/4000s 5.5/s Y n
6.
 
Nikon D610optical Y3.2 / 921 fixed n 1/4000s 6.0/s Y n
7.
 
Nikon D700optical Y3.0 / 922 fixed n 1/8000s 8.0/s Y n
8.
 
Nikon D750optical Y3.2 / 1229 tilting n 1/4000s 6.0/s Y n
9.
 
Nikon D800optical Y3.2 / 921 fixed n 1/8000s 4.0/s Y n
10.
 
Nikon D800Eoptical Y3.2 / 921 fixed n 1/8000s 4.0/s Y n
11.
 
Nikon D850optical Y3.2 / 2359 tilting Y 1/8000s 9.0/s n n
12.
 
Nikon Dfoptical Y3.2 / 921 fixed n 1/4000s 5.5/s n n
13.
 
Olympus E-400optical n2.5 / 215 fixed n 1/4000s 3.0/s Y n
14.
 
Olympus E-410optical n2.5 / 215 fixed n 1/4000s 3.0/s Y n
15.
 
Olympus E-450optical n2.7 / 215 fixed n 1/4000s 3.5/s Y n
16.
 
Olympus E-520optical n2.7 / 215 fixed n 1/4000s 3.5/s Y Y
17.
 
Olympus E-620optical n2.7 / 230 swivel n 1/4000s 4.0/s Y Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One feature that is present on the D810, but is missing on the E-420 is a top-level LCD. While being, of course, smaller than the rear screen, the control panel conveys some of the essential shooting information and can be convenient for quick and easy settings verification.

The Nikon D810 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 D810 writes its imaging data to Compact Flash or SDXC cards, while the E-420 uses Compact Flash or xD Picture cards. Both cameras feature dual card slots, which can be very useful in case a memory card fails.

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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 Nikon D810 and Olympus E-420 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
  empty Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Nikon D810Ystereo / monoYYmini3.0Y--
2.
 
Olympus E-420Y- / ----2.0---
3.
 
Canon 5DSYmono / monoY-mini3.0---
4.
 
Nikon D4SYmono / monoYYmini2.0---
5.
 
Nikon D600Ymono / monoYYmini2.0---
6.
 
Nikon D610Ymono / monoYYmini2.0---
7.
 
Nikon D700Y- / ---mini2.0---
8.
 
Nikon D750Ystereo / monoYYmini2.0Y--
9.
 
Nikon D800Ymono / monoYYmini3.0---
10.
 
Nikon D800EYmono / monoYYmini3.0---
11.
 
Nikon D850Ystereo / monoYYmini3.0YYY
12.
 
Nikon DfY- / ---mini2.0---
13.
 
Olympus E-400Y- / ----2.0---
14.
 
Olympus E-410Y- / ----2.0---
15.
 
Olympus E-450Y- / ----2.0---
16.
 
Olympus E-520Y- / ----2.0---
17.
 
Olympus E-620Y- / ----2.0---

It is notable that the D810 offers wifi support, while the E-420 does not. Wifi can be a very convenient means to transfer image data to an off-camera location.

Studio photographers will appreciate that the Nikon D810 (unlike the E-420) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the D810 and the E-420 have been discontinued, but can regularly be found used on ebay. The D810 was replaced by the Nikon D850, while the E-420 does not have a direct successor. Further information on the features and operation of the D810 and E-420 can be found, respectively, in the Nikon D810 Manual (free pdf) or the online Olympus E-420 Manual.

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Review summary

So how do things add up? Which of the two cameras – the Nikon D810 or the Olympus E-420 – 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.

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Arguments in favor of the Nikon D810:

  • More detail: Offers more megapixels (36.2 vs 10MP) with a 94% higher linear resolution.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Better image quality: Scores substantially higher (41 points) in the DXO overall assessment.
  • Richer colors: Generates images with noticeably better colors (4.2 bits more color depth).
  • More dynamic range: Captures a larger spectrum of light and dark details (4.4 EV of extra DR).
  • Better low-light sensitivity: Requires less light for good images (2.4 stops ISO advantage).
  • Broader imaging potential: Can record not only still images but also 1080/60p movies.
  • 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 (0.70x vs 0.46x).
  • Easier setting verification: Features an LCD display on top to control 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 (5 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: Can take more shots (1200 versus 500) on a single battery charge.
  • Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
  • Faster data transfer: Supports a more advanced USB protocol (3.0 vs 2.0).
  • Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
  • Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
  • More modern: Reflects 6 years and 3 months of technical progress since the E-420 launch.

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Advantages of the Olympus E-420:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • More compact: Is smaller (130x91mm vs 146x123mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 540g or 55 percent) and is thus easier to take along.
  • More affordable: Was introduced into a lower priced category (82 percent cheaper at launch).
  • More heavily discounted: Has been around for much longer (launched in March 2008).

If the count of individual advantages (bullet points above) is taken as a guide, the D810 is the clear winner of the match-up (21 : 5 points). However, the relevance of individual strengths will vary across photographers, so that you might want to apply your own weighing scheme to the summary points when reflecting and deciding 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.

D810 21:05 E-420

How about other alternatives? Do the specifications of the Nikon D810 and the Olympus E-420 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 D810 or the E-420. 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.

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.

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Expert Camera Reviews
  empty  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price
Street
Price
1.
 
Nikon D8105/5..5/586/1005/54.5/5 Jun 2014 US$ 3 299ebay.com
2.
 
Olympus E-420..85/100..+ +4/54.5/5 Mar 2008 US$ 599ebay.com
3.
 
Canon 5DS..+..83/1004.5/54.5/5 Feb 2015 US$ 3 699ebay.com
4.
 
Nikon D4S5/5......4.5/54.5/5 Feb 2014 US$ 6 499ebay.com
5.
 
Nikon D6004/5+ +..87/1005/54.5/5 Sep 2012 US$ 2 099ebay.com
6.
 
Nikon D6104/5+ +..87/1004.5/54.5/5 Oct 2013 US$ 1 999ebay.com
7.
 
Nikon D700..89/100..+ +4.5/54.5/5 Jul 2008 US$ 2 999ebay.com
8.
 
Nikon D7505/5+ +4/590/1004.5/54.5/5 Sep 2014 US$ 2 299ebay.com
9.
 
Nikon D8005/5+ +..82/1005/55/5 Feb 2012 US$ 2 999ebay.com
10.
 
Nikon D800E......84/1005/55/5 Feb 2012 US$ 3 299ebay.com
11.
 
Nikon D8504.5/5+ +5/589/1004.5/55/5 Jul 2017 US$ 3 299 amazon.com
12.
 
Nikon Df4/5....81/1004/54/5 Nov 2013 US$ 2 749ebay.com
13.
 
Olympus E-400..85/100....4/54/5 Sep 2006 US$ 699ebay.com
14.
 
Olympus E-410..86/100..+ +4/54.5/5 Mar 2007 US$ 699ebay.com
15.
 
Olympus E-450........4/54/5 Mar 2009 US$ 499ebay.com
16.
 
Olympus E-520..87/100..+ +4.5/54.5/5 May 2008 US$ 699ebay.com
17.
 
Olympus E-6203/588/100..72/1004.5/55/5 Feb 2009 US$ 699ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The review scores listed above should be treated with care, though. The assessments were made in relation to similar cameras of the same technological generation. Hence, a score should always be seen in the context of the camera's market launch date and its price, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

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Other camera comparisons

Did this review help to inform your camera decision process? In case you are interested in seeing how other cameras pair up, just make your choice using the following search menu. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.

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    Specifications: Nikon D810 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 Specifications
    Camera Model Nikon D810 Olympus E-420
    Camera Type Digital single lens reflex Digital single lens reflex
    Camera Lens Nikon F mount lenses Four Thirds lenses
    Launch Date June 2014 March 2008
    Launch Price USD 3,299 USD 599
    Sensor Specs Nikon D810 Olympus E-420
    Sensor Technology CMOS CMOS
    Sensor Format Full Frame Sensor Four Thirds Sensor
    Sensor Size 35.9 x 24.0 mm 17.3 x 13.0 mm
    Sensor Area 861.6 mm2 224.9 mm2
    Sensor Diagonal 43.2 mm 21.6 mm
    Crop Factor 1.0x 2.0x
    Sensor Resolution 36.2 Megapixels 10 Megapixels
    Image Resolution 7360 x 4912 pixels 3648 x 2736 pixels
    Pixel Pitch 4.88 μm 4.74 μm
    Pixel Density 4.20 MP/cm2 4.44 MP/cm2
    Moiré control no AA filter Anti-Alias filter
    Movie Capability 1080/60p Video no Video
    ISO Setting 64 - 12,800 ISO 100 - 1,600 ISO
    ISO Boost 32 - 51,200 ISO no Enhancement
    Image Processor EXPEED 4 TruePic III
    DXO Sensor Quality (score) 97 56
    DXO Color Depth (bits) 25.7 21.5
    DXO Dynamic Range (EV) 14.8 10.4
    DXO Low Light (ISO) 2853 527
    Screen Specs Nikon D810 Olympus E-420
    Viewfinder Type Optical viewfinder Optical viewfinder
    Viewfinder Field of View 100% 95%
    Viewfinder Magnification 0.70x 0.46x
    Top-Level Screen Control Panel no Top Display
    LCD Framing Live View Live View
    Rear LCD Size 3.2inch 2.7inch
    LCD Resolution 1229k dots 215k dots
    LCD Attachment Fixed screen Fixed screen
    Shooting Specs Nikon D810 Olympus E-420
    Focus System Phase-detect AF Phase-detect AF
    Continuous Shooting 5 shutter flaps/s 3.5 shutter flaps/s
    Time-Lapse PhotographyIntervalometer built-inno Intervalometer
    Fill Flash Built-in Flash Built-in Flash
    Storage Medium CF or SDXC cards CF or XD cards
    Single or Dual Card Slots Dual card slots Dual card slots
    Connectivity Specs Nikon D810 Olympus E-420
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket no PC Sync
    USB Connector USB 3.0 USB 2.0
    HDMI Port mini 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
    Body Specs Nikon D810 Olympus E-420
    Environmental SealingWeathersealed bodynot weather sealed
    Battery Type Nikon EN-EL15 Olympus BLS-1
    Battery Life (CIPA)1200 shots per charge500 shots per charge
    Body Dimensions 146 x 123 x 82 mm
    (5.7 x 4.8 x 3.2 in)
    130 x 91 x 53 mm
    (5.1 x 3.6 x 2.1 in)
    Camera Weight 980 g (34.6 oz) 440 g (15.5 oz)
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