Nikon D2X vs Olympus E-5

The Nikon D2X and the Olympus E-5 are two professional cameras that were announced, respectively, in September 2004 and September 2010. Both are DSLR (Digital Single Lens Reflex) cameras that are based on an APS-C (D2X) and a Four Thirds (E-5) sensor. Both cameras offer a resolution of 12.2 megapixels.

Below is an overview of the main specs of the two cameras as a starting point for the comparison.

Headline Specifications

Nikon D2X		Olympus E-5
Digital single lens reflex		Digital single lens reflex
Nikon F mount lenses		Four Thirds lenses
12.2 MP – APS-C sensor		12.2 MP – Four Thirds sensor
no Video		720/30p Video
ISO 100-800 (100 - 3,200)		ISO 100-6,400
Optical viewfinder		Optical viewfinder
2.5" LCD – 235k dots		3.0" LCD – 920k dots
Fixed screen (not touch-sensitive)		Swivel screen (not touch-sensitive)
5 shutter flaps per second		5 shutter flaps per second
Lens stabilization only		In-body stabilization
Weathersealed body		Weathersealed body
3800 shots per battery charge		750 shots per battery charge
158 x 150 x 86 mm, 1252 g		142 x 117 x 75 mm, 873 g

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Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon D2X and the Olympus E-5? 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 Nikon D2X and the Olympus E-5 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-5 is considerably smaller (30 percent) than the Nikon D2X. Moreover, the E-5 is markedly lighter (30 percent) than the D2X. 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. 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 (D2X) and the Four Thirds Lens Catalog (E-5).

Concerning battery life, the D2X gets 3800 shots out of its Nikon EN-EL4a battery, while the E-5 can take 750 images on a single charge of its Olympus BLM-5 power pack. As can be seen in the images above, the D2X has a battery grip built in. This facilitates image-taking in portrait orientation and gives it additional battery power. In order to provide similar functionality for the E-5, Olympus provides the HLD-4 vertical grip as an optional accessory (see here on ebay).

The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. If you would like to visualize and compare a different camera combination, you can navigate to the CAM-parator app and make your selection from a broad list of cameras there.

Body Specifications

		Camera Model	Camera Width	Camera Height	Camera Depth	Camera Weight	Battery Life	Weather Sealing	Camera Launch	Launch Price	Street Price
1.		Nikon D2X	158 mm	150 mm	86 mm	1252 g	3800	Y	Sep 2004	US$ 4 999	ebay.com
2.		Olympus E-5	142 mm	117 mm	75 mm	873 g	750	Y	Sep 2010	US$ 1 699	ebay.com
3.		Canon 1D Mark III	156 mm	157 mm	80 mm	1155 g	2200	Y	Feb 2007	US$ 4 499	ebay.com
4.		Nikon D1H	157 mm	153 mm	85 mm	1100 g	1200	Y	Feb 2001	US$ 4 499	ebay.com
5.		Nikon D1X	157 mm	153 mm	85 mm	1100 g	1200	Y	Feb 2001	US$ 5 999	ebay.com
6.		Nikon D2H	158 mm	150 mm	86 mm	1070 g	2900	Y	Jul 2003	US$ 3 499	ebay.com
7.		Nikon D2Xs	158 mm	150 mm	86 mm	1252 g	3800	Y	Jun 2006	US$ 4 699	ebay.com
8.		Nikon D3	160 mm	157 mm	88 mm	1300 g	4300	Y	Aug 2007	US$ 4 999	ebay.com
9.		Nikon D3S	160 mm	157 mm	88 mm	1240 g	4200	Y	Oct 2009	US$ 5 199	ebay.com
10.		Nikon D200	147 mm	113 mm	74 mm	920 g	400	Y	Nov 2005	US$ 1 699	ebay.com
11.		Nikon D300	147 mm	114 mm	74 mm	925 g	1000	Y	Aug 2007	US$ 1 799	ebay.com
12.		Nikon D300S	147 mm	115 mm	81 mm	938 g	950	Y	Jul 2009	US$ 1 799	ebay.com
13.		Olympus E-3	142 mm	116 mm	75 mm	876 g	750	Y	Oct 2007	US$ 1 699	ebay.com
14.		Olympus E-450	130 mm	91 mm	53 mm	440 g	500	n	Mar 2009	US$ 499	ebay.com
15.		Olympus E-600	130 mm	94 mm	60 mm	535 g	500	n	Aug 2009	US$ 449	ebay.com
16.		Olympus E-620	130 mm	94 mm	60 mm	521 g	500	n	Feb 2009	US$ 699	ebay.com
17.		Sony A77	143 mm	104 mm	81 mm	732 g	470	Y	Aug 2011	US$ 1 399	ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
Convert to Imperial

Any camera decision will obviously take relative prices into account. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The E-5 was launched at a markedly lower price (by 66 percent) than the D2X, 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. 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 D2X features an APS-C sensor and the Olympus E-5 a Four Thirds sensor. The sensor area in the E-5 is 40 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 D2X has a native 3:2 aspect ratio, while the one in the E-5 offers a 4:3 aspect.

Even though the D2X has a larger sensor, both cameras offer the same resolution of 12.2 megapixels. This implies that the D2X has a lower pixel density and larger individual pixels (with a pixel pitch of 5.52μm versus 4.29μm for the E-5), which gives it a potential advantage in terms of light gathering capacity. It should, however, be noted that the E-5 is much more recent (by 5 years and 11 months) than the D2X, and its sensor will have benefitted from technological advances during this time that at least partly compensate for the smaller pixel size.

The Nikon D2X has a native sensitivity range from ISO 100 to ISO 800, which can be extended to ISO 100-3200. The corresponding ISO settings for the Olympus E-5 are ISO 100 to ISO 6400 (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.

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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"). The Overall DXO ratings for the two cameras under consideration are close, suggesting that they provide similar imaging performance. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.

Sensor Characteristics

		Camera Model	Sensor Class	Resolution (MP)	Horiz. Pixels	Vert. Pixels	Video Format	DXO Portrait	DXO Landscape	DXO Sports	DXO Overall
1.		Nikon D2X	APS-C	12.2	4288	2848	none	22.1	10.9	476	59
2.		Olympus E-5	Four Thirds	12.2	4032	3024	720/30p	21.6	10.5	519	56
3.		Canon 1D Mark III	APS-H	10.1	3888	2592	none	22.7	11.7	1078	71
4.		Nikon D1H	APS-C	2.6	2000	1312	none	..	..	..	..
5.		Nikon D1X	APS-C	5.9	3008	1960	none	..	..	..	..
6.		Nikon D2H	APS-C	4.0	2464	1632	none	18.9	10.0	352	40
7.		Nikon D2Xs	APS-C	12.2	4288	2848	none	22.2	10.9	489	59
8.		Nikon D3	Full Frame	12.1	4256	2832	none	23.5	12.2	2290	81
9.		Nikon D3S	Full Frame	12.1	4256	2832	720/24p	23.5	12.0	3253	82
10.		Nikon D200	APS-C	10.0	3872	2592	none	22.3	11.5	583	64
11.		Nikon D300	APS-C	12.2	4288	2848	none	22.1	12.0	679	67
12.		Nikon D300S	APS-C	12.2	4288	2848	720/24p	22.5	12.2	787	70
13.		Olympus E-3	Four Thirds	10.0	3648	2736	none	21.6	10.5	571	56
14.		Olympus E-450	Four Thirds	10.0	3648	2736	none	21.5	10.5	512	56
15.		Olympus E-600	Four Thirds	12.2	4032	3024	none	21.5	10.3	541	55
16.		Olympus E-620	Four Thirds	12.2	4032	3024	none	21.3	10.3	536	55
17.		Sony A77	APS-C	24.0	6000	4000	1080/60p	24.0	13.2	801	78

Many modern cameras cannot only take still pictures, but also record videos. The E-5 indeed provides for movie recording, while the D2X does not. The highest resolution format that the E-5 can use is 720/30p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. The D2X and the E-5 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 (100%), but the viewfinder of the E-5 has a higher magnification than the one of the D2X (0.58x vs 0.57x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The adjacent table lists some of the other core features of the Nikon D2X and Olympus E-5 along with similar information for a selection of comparators.

Core Features

		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 D2X	optical	Y	2.5 / 235	fixed	n	1/8000s	5.0/s	n	n
2.		Olympus E-5	optical	Y	3.0 / 920	swivel	n	1/8000s	5.0/s	Y	Y
3.		Canon 1D Mark III	optical	Y	3.0 / 230	fixed	n	1/8000s	10.0/s	n	n
4.		Nikon D1H	optical	Y	2.0 / 120	fixed	n	1/16000s	5.0/s	n	n
5.		Nikon D1X	optical	Y	2.0 / 120	fixed	n	1/16000s	3.0/s	n	n
6.		Nikon D2H	optical	Y	2.5 / 211	fixed	n	1/8000s	8.0/s	n	n
7.		Nikon D2Xs	optical	Y	2.5 / 230	fixed	n	1/8000s	5.0/s	n	n
8.		Nikon D3	optical	Y	3.0 / 922	fixed	n	1/8000s	11.0/s	n	n
9.		Nikon D3S	optical	Y	3.0 / 921	fixed	n	1/8000s	11.0/s	n	n
10.		Nikon D200	optical	Y	2.5 / 230	fixed	n	1/8000s	5.0/s	Y	n
11.		Nikon D300	optical	Y	3.0 / 922	fixed	n	1/8000s	6.0/s	Y	n
12.		Nikon D300S	optical	Y	3.0 / 920	fixed	n	1/8000s	7.0/s	Y	n
13.		Olympus E-3	optical	Y	2.5 / 230	swivel	n	1/8000s	5.0/s	Y	Y
14.		Olympus E-450	optical	n	2.7 / 215	fixed	n	1/4000s	3.5/s	Y	n
15.		Olympus E-600	optical	n	2.7 / 230	swivel	n	1/4000s	4.0/s	Y	Y
16.		Olympus E-620	optical	n	2.7 / 230	swivel	n	1/4000s	4.0/s	Y	Y
17.		Sony A77	2359	Y	3.0 / 921	full-flex	n	1/8000s	12.0/s	Y	Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One feature that differentiates the E-5 and the D2X is in-body image stabilization (IBIS). The E-5 reduces the risk of handshake-induced blur with all attached lenses, while the D2X offers no blur reduction with lenses that themselves do not provide optical image stabilization.

The D2X writes its imaging data to Compact Flash cards, while the E-5 uses Compact Flash or xD Picture cards. The E-5 features dual card slots, which can be very useful in case a memory card fails. In contrast, the D2X only has one slot.

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 D2X and Olympus E-5 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

Input-Output Connections

		Camera Model	Hotshoe Port	Internal Mic / Speaker	Microphone Port	Headphone Port	HDMI Port	USB Port	WiFi Support	NFC Support	Bluetooth Support
1.		Nikon D2X	Y	- / -	-	-	-	2.0	-	-	-
2.		Olympus E-5	Y	stereo / -	-	-	mini	2.0	-	-	-
3.		Canon 1D Mark III	Y	- / -	-	-	-	2.0	-	-	-
4.		Nikon D1H	Y	- / -	-	-	-	FW	-	-	-
5.		Nikon D1X	Y	- / -	-	-	-	FW	-	-	-
6.		Nikon D2H	Y	- / -	-	-	-	2.0	-	-	-
7.		Nikon D2Xs	Y	- / -	-	-	-	2.0	-	-	-
8.		Nikon D3	Y	- / -	-	-	mini	2.0	-	-	-
9.		Nikon D3S	Y	stereo / -	-	-	mini	2.0	-	-	-
10.		Nikon D200	Y	- / -	-	-	-	2.0	-	-	-
11.		Nikon D300	Y	- / -	-	-	mini	2.0	-	-	-
12.		Nikon D300S	Y	stereo / mono	Y	-	mini	2.0	-	-	-
13.		Olympus E-3	Y	- / -	-	-	-	2.0	-	-	-
14.		Olympus E-450	Y	- / -	-	-	-	2.0	-	-	-
15.		Olympus E-600	Y	- / -	-	-	-	2.0	-	-	-
16.		Olympus E-620	Y	- / -	-	-	-	2.0	-	-	-
17.		Sony A77	Y	stereo / mono	Y	-	mini	2.0	-	-	-

Both cameras feature a PC Sync terminal to control professional strobe lights, which will be appreciated by studio photographers.

Both the D2X and the E-5 have been discontinued, but can regularly be found used on ebay. The D2X was replaced by the Nikon D2Xs, while the E-5 does not have a direct successor. Further information on the features and operation of the D2X and E-5 can be found, respectively, in the Nikon D2X Manual (free pdf) or the online Olympus E-5 Manual.

Review summary

So what is the bottom line? Is the Nikon D2X better than the Olympus E-5 or vice versa? A synthesis of the relative strong points of each of the models is listed below.

Advantages of the Nikon D2X:

• More portrait friendly: Features an integrated vertical grip for easier portrait shooting.
• Longer lasting: Can take more shots (3800 versus 750) on a single battery charge.
• More heavily discounted: Has been available for much longer (launched in September 2004).

Arguments in favor of the Olympus E-5:

• Broader imaging potential: Can capture not only stills but also 720/30p video.
• Larger viewfinder image: Features a viewfinder with a higher magnification (0.58x vs 0.57x).
• Larger screen: Has a bigger rear LCD (3.0" vs 2.5") for image review and settings control.
• More detailed LCD: Has a higher resolution rear screen (920k vs 235k 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.
• More compact: Is smaller (142x117mm vs 158x150mm) and will fit more readily into a bag.
• Less heavy: Has a lower weight (by 379g or 30 percent) and is thus easier to take along.
• Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
• Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
• 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 (66 percent cheaper at launch).
• More modern: Reflects 5 years and 11 months of technical progress since the D2X launch.

If the count of individual advantages (bullet points above) is taken as a guide, the E-5 is the clear winner of the contest (13 : 3 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.

How about other alternatives? Do the specifications of the Nikon D2X and the Olympus E-5 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 says little about, for example, the shooting experience and imaging performance of the D2X and the E-5 in practical situations. 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 why hands-on reviews by experts are important. 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.

Expert Camera Reviews

		Camera   Model	AP   score	CL   score	DCW   score	DPR   score	EPZ   score	PB   score	Camera Launch	Launch Price	Street Price
1.		Nikon D2X	..	..	..	+ +	..	..	Sep 2004	US$ 4 999	ebay.com
2.		Olympus E-5	4/5	..	..	75/100	4/5	4.5/5	Sep 2010	US$ 1 699	ebay.com
3.		Canon 1D Mark III	..	..	..	..	..	..	Feb 2007	US$ 4 499	ebay.com
4.		Nikon D1H	..	..	..	+ +	..	..	Feb 2001	US$ 4 499	ebay.com
5.		Nikon D1X	..	..	..	+ +	..	..	Feb 2001	US$ 5 999	ebay.com
6.		Nikon D2H	..	..	..	+ +	..	..	Jul 2003	US$ 3 499	ebay.com
7.		Nikon D2Xs	..	..	..	..	..	..	Jun 2006	US$ 4 699	ebay.com
8.		Nikon D3	..	..	..	+ +	5/5	4.5/5	Aug 2007	US$ 4 999	ebay.com
9.		Nikon D3S	5/5	..	..	89/100	4.5/5	5/5	Oct 2009	US$ 5 199	ebay.com
10.		Nikon D200	..	+ +	..	+ +	o	..	Nov 2005	US$ 1 699	ebay.com
11.		Nikon D300	..	+ +	..	+ +	5/5	4.5/5	Aug 2007	US$ 1 799	ebay.com
12.		Nikon D300S	5/5	+ +	..	82/100	4/5	4.5/5	Jul 2009	US$ 1 799	ebay.com
13.		Olympus E-3	..	88/100	..	+ +	o	4/5	Oct 2007	US$ 1 699	ebay.com
14.		Olympus E-450	..	..	..	..	4/5	4/5	Mar 2009	US$ 499	ebay.com
15.		Olympus E-600	..	..	..	..	..	4.5/5	Aug 2009	US$ 449	ebay.com
16.		Olympus E-620	3/5	88/100	..	72/100	4.5/5	5/5	Feb 2009	US$ 699	ebay.com
17.		Sony A77	5/5	91/100	..	81/100	..	5/5	Aug 2011	US$ 1 399	ebay.com
Note: (+ +) 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. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. 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 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.

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