Nikon D70s vs Olympus E-30

The Nikon D70s and the Olympus E-30 are two digital cameras that were announced, respectively, in April 2005 and November 2008. Both are DSLR (Digital Single Lens Reflex) cameras that are based on an APS-C (D70s) and a Four Thirds (E-30) sensor. The Nikon has a resolution of 6 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.

Headline Specifications

Nikon D70s		Olympus E-30
Digital single lens reflex		Digital single lens reflex
Nikon F mount lenses		Four Thirds lenses
6 MP – APS-C sensor		12.2 MP – Four Thirds sensor
no Video		no Video
ISO 200-1,600		ISO 100-3,200
Optical viewfinder		Optical viewfinder
2.0" LCD – 130k dots		2.7" LCD – 230k dots
Fixed screen (not touch-sensitive)		Swivel screen (not touch-sensitive)
3 shutter flaps per second		5 shutter flaps per second
Lens stabilization only		In-body stabilization
500 shots per battery charge		750 shots per battery charge
140 x 111 x 78 mm, 679 g		142 x 108 x 75 mm, 701 g

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Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon D70s and the Olympus E-30? 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

An illustration of the physical size and weight of the Nikon D70s and the Olympus E-30 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.

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Olympus E-30 is somewhat smaller (1 percent) than the Nikon D70s. However, the E-30 is slightly heavier (3 percent) than the D70s. In this context, it is worth noting that neither the D70s nor the E-30 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 (D70s) and the Four Thirds Lens Catalog (E-30).

Concerning battery life, the D70s gets 500 shots out of its Nikon EN-EL3a battery, while the E-30 can take 750 images on a single charge of its Olympus BLM-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.

Body Specifications

		Camera Model	Camera Width	Camera Height	Camera Depth	Camera Weight	Battery Life	Weather Sealing	Camera Launch	Launch Price	Street Price
1.		Nikon D70s	140 mm	111 mm	78 mm	679 g	500	n	Apr 2005	US$ 899	ebay.com
2.		Olympus E-30	142 mm	108 mm	75 mm	701 g	750	n	Nov 2008	US$ 1 299	ebay.com
3.		Canon 300D	142 mm	99 mm	72 mm	649 g	400	n	Aug 2003	US$ 899	ebay.com
4.		Nikon D40	124 mm	94 mm	64 mm	522 g	470	n	Nov 2006	US$ 499	ebay.com
5.		Nikon D50	133 mm	102 mm	76 mm	620 g	400	n	Apr 2005	US$ 749	ebay.com
6.		Nikon D70	140 mm	111 mm	78 mm	679 g	400	n	Jan 2004	US$ 999	ebay.com
7.		Nikon D80	132 mm	103 mm	77 mm	668 g	600	n	Aug 2006	US$ 999	ebay.com
8.		Nikon D100	144 mm	116 mm	81 mm	780 g	370	n	Feb 2002	US$ 1 999	ebay.com
9.		Nikon D5000	127 mm	104 mm	80 mm	590 g	510	n	Apr 2009	US$ 749	ebay.com
10.		Nikon D5100	128 mm	97 mm	79 mm	560 g	660	n	Apr 2011	US$ 749	ebay.com
11.		Olympus E-330	140 mm	87 mm	72 mm	637 g	750	n	Jan 2006	US$ 999	ebay.com
12.		Olympus E-410	130 mm	91 mm	53 mm	435 g	500	n	Mar 2007	US$ 699	ebay.com
13.		Olympus E-510	136 mm	92 mm	68 mm	538 g	750	n	Mar 2007	US$ 799	ebay.com
14.		Olympus E-520	136 mm	92 mm	68 mm	535 g	750	n	May 2008	US$ 699	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.		Panasonic L1	146 mm	87 mm	64 mm	606 g	750	n	Feb 2006	US$ 999	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

The price is, of course, an important factor in any camera decision. 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 D70s was launched at a markedly lower price (by 31 percent) than the E-30, 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.

Sensor comparison

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. 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 associated with larger, more expensive camera bodies and lenses.

Of the two cameras under consideration, the Nikon D70s features an APS-C sensor and the Olympus E-30 a Four Thirds sensor. The sensor area in the E-30 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 D70s has a native 3:2 aspect ratio, while the one in the E-30 offers a 4:3 aspect.

Despite having a smaller sensor, the E-30 offers a higher resolution of 12.2 megapixels, compared with 6 MP of the D70s. 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 4.29μm versus 7.85μm for the D70s). However, it should be noted that the E-30 is much more recent (by 3 years and 6 months) than the D70s, 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 Olympus E-30 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the E-30 for good quality output (200 dots per inch) amounts to 20.2 x 15.1 inches or 51.2 x 38.4 cm, for very good quality (250 dpi) 16.1 x 12.1 inches or 41 x 30.7 cm, and for excellent quality (300 dpi) 13.4 x 10.1 inches or 34.1 x 25.6 cm. The corresponding values for the Nikon D70s are 15 x 10 inches or 38.2 x 25.4 cm for good quality, 12 x 8 inches or 30.6 x 20.3 cm for very good quality, and 10 x 6.7 inches or 25.5 x 16.9 cm for excellent quality prints.

The Nikon D70s has a native sensitivity range from ISO 200 to ISO 1600. The corresponding ISO settings for the Olympus E-30 are ISO 100 to ISO 3200 (no boost).

In terms of underlying technology, the D70s is build around a CCD sensor, while the E-30 uses a CMOS imager. 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 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"). Of the two cameras under consideration, the E-30 has a markedly higher DXO score than the D70s (overall score 5 points higher), which will translate into better image quality. The advantage is based on 0.9 bits higher color depth, 0.1 EV in additional dynamic range, and -0 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.

Sensor Characteristics

		Camera Model	Sensor Class	Resolution (MP)	Horiz. Pixels	Vert. Pixels	Video Format	DXO Portrait	DXO Landscape	DXO Sports	DXO Overall
1.		Nikon D70s	APS-C	6.0	3008	2000	none	20.4	10.3	529	50
2.		Olympus E-30	Four Thirds	12.2	4032	3024	none	21.3	10.4	530	55
3.		Canon 300D	APS-C	6.3	3072	2048	none	21.0	10.8	544	55
4.		Nikon D40	APS-C	6.0	3008	2000	none	21.0	11.0	561	56
5.		Nikon D50	APS-C	6.0	3008	2000	none	20.9	10.8	560	55
6.		Nikon D70	APS-C	6.0	3008	2000	none	20.4	10.3	529	50
7.		Nikon D80	APS-C	10.0	3872	2592	none	22.1	11.2	524	61
8.		Nikon D100	APS-C	6.0	3008	2000	none	20.4	9.9	394	48
9.		Nikon D5000	APS-C	12.2	4288	2848	720/24p	22.7	12.5	868	72
10.		Nikon D5100	APS-C	16.1	4928	3264	1080/30p	23.5	13.6	1183	80
11.		Olympus E-330	Four Thirds	7.4	3136	2352	none	20.8	10.4	73	52
12.		Olympus E-410	Four Thirds	10.0	3648	2736	none	21.1	10.0	494	51
13.		Olympus E-510	Four Thirds	10.0	3648	2736	none	21.2	10.0	442	52
14.		Olympus E-520	Four Thirds	10.0	3648	2736	none	21.4	10.4	548	55
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.		Panasonic L1	Four Thirds	7.4	3136	2352	none	20.8	10.4	80	52
Note: DXO values in italics represent estimates based on sensor size and age.

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. The D70s and the E-30 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 E-30 offers a wider field of view (98%) than the one in the D70s (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the E-30 has a higher magnification (0.51x vs 0.50x), 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 D70s and Olympus E-30 in connection with corresponding information for a sample of similar cameras.

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 D70s	optical	n	2.0 / 130	fixed	n	1/8000s	3.0/s	Y	n
2.		Olympus E-30	optical	Y	2.7 / 230	swivel	n	1/8000s	5.0/s	Y	Y
3.		Canon 300D	optical	n	1.8 / 118	fixed	n	1/4000s	2.5/s	Y	n
4.		Nikon D40	optical	n	2.5 / 230	fixed	n	1/4000s	2.5/s	Y	n
5.		Nikon D50	optical	n	2.0 / 130	fixed	n	1/4000s	2.5/s	Y	n
6.		Nikon D70	optical	n	1.8 / 130	fixed	n	1/8000s	3.0/s	Y	n
7.		Nikon D80	optical	n	2.5 / 230	fixed	n	1/4000s	3.0/s	Y	n
8.		Nikon D100	optical	Y	1.8 / 118	fixed	n	1/4000s	3.0/s	Y	n
9.		Nikon D5000	optical	n	2.7 / 230	full-flex	n	1/4000s	4.0/s	Y	n
10.		Nikon D5100	optical	n	3.0 / 921	swivel	n	1/4000s	4.0/s	Y	n
11.		Olympus E-330	optical	n	2.5 / 215	tilting	n	1/4000s	3.0/s	Y	n
12.		Olympus E-410	optical	n	2.5 / 215	fixed	n	1/4000s	3.0/s	Y	n
13.		Olympus E-510	optical	n	2.5 / 215	fixed	n	1/4000s	3.0/s	Y	Y
14.		Olympus E-520	optical	n	2.7 / 215	fixed	n	1/4000s	3.5/s	Y	Y
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.		Panasonic L1	optical	n	2.5 / 207	fixed	n	1/4000s	3.0/s	Y	n
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One feature that differentiates the E-30 and the D70s is in-body image stabilization (IBIS). The E-30 reduces the risk of handshake-induced blur with all attached lenses, while the D70s offers no blur reduction with lenses that themselves do not provide optical image stabilization.

The D70s writes its imaging data to Compact Flash cards, while the E-30 uses Compact Flash or xD Picture cards. The E-30 features dual card slots, which can be very useful in case a memory card fails. In contrast, the D70s 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 D70s and Olympus E-30 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 D70s	Y	- / -	-	-	-	2.0	-	-	-
2.		Olympus E-30	Y	- / -	-	-	-	2.0	-	-	-
3.		Canon 300D	Y	- / -	-	-	-	1.1	-	-	-
4.		Nikon D40	Y	- / -	-	-	-	2.0	-	-	-
5.		Nikon D50	Y	- / -	-	-	-	2.0	-	-	-
6.		Nikon D70	Y	- / -	-	-	-	1.0	-	-	-
7.		Nikon D80	Y	- / -	-	-	-	2.0	-	-	-
8.		Nikon D100	Y	- / -	-	-	-	1.1	-	-	-
9.		Nikon D5000	Y	mono / mono	-	-	mini	2.0	-	-	-
10.		Nikon D5100	Y	mono / mono	Y	-	mini	2.0	-	-	-
11.		Olympus E-330	Y	- / -	-	-	-	2.0	-	-	-
12.		Olympus E-410	Y	- / -	-	-	-	2.0	-	-	-
13.		Olympus E-510	Y	- / -	-	-	-	2.0	-	-	-
14.		Olympus E-520	Y	- / -	-	-	-	2.0	-	-	-
15.		Olympus E-600	Y	- / -	-	-	-	2.0	-	-	-
16.		Olympus E-620	Y	- / -	-	-	-	2.0	-	-	-
17.		Panasonic L1	Y	- / -	-	-	-	2.0	-	-	-

Both the D70s and the E-30 have been discontinued, but can regularly be found used on ebay. The D70s was replaced by the Nikon D80, while the E-30 does not have a direct successor. Further information on the features and operation of the D70s and E-30 can be found, respectively, in the Nikon D70s Manual (free pdf) or the online Olympus E-30 Manual.

Review summary

So what conclusions can be drawn? Which of the two cameras – the Nikon D70s or the Olympus E-30 – 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.

Reasons to prefer the Nikon D70s:

• More affordable: Was introduced into a lower priced category (31 percent cheaper at launch).
• More heavily discounted: Has been available for much longer (launched in April 2005).

Advantages of the Olympus E-30:

• More detail: Has more megapixels (12.2 vs 6MP), which boosts linear resolution by 40%.
• Better image quality: Scores markedly higher (5 points) in the DXO overall evaluation.
• More complete view: Has a viewfinder with a larger field of view (98% vs 95%).
• Larger viewfinder image: Features a viewfinder with a higher magnification (0.51x vs 0.50x).
• Easier setting verification: Features a control panel on top to check shooting parameters.
• Larger screen: Has a bigger rear LCD (2.7" vs 2.0") for image review and settings control.
• More detailed LCD: Has a higher resolution rear screen (230k vs 130k 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 (5 vs 3 flaps/sec) to capture the decisive moment.
• Longer lasting: Gets more shots (750 versus 500) out of a single battery charge.
• 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 modern: Reflects 3 years and 6 months of technical progress since the D70s launch.

If the count of relative strengths (bullet points above) is taken as a measure, the E-30 is the clear winner of the contest (14 : 2 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 D70s and the Olympus E-30 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 D70s or the E-30. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.

Expert reviews

This is where reviews by experts come in. The table below provides a synthesis of the camera assessments of some of the best known photo-gear 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 D70s	..	..	..	..	..	5/5	Apr 2005	US$ 899	ebay.com
2.		Olympus E-30	..	..	..	71/100	4.5/5	4/5	Nov 2008	US$ 1 299	ebay.com
3.		Canon 300D	..	..	..	+ +	..	..	Aug 2003	US$ 899	ebay.com
4.		Nikon D40	..	81/100	..	+ +	o	4.5/5	Nov 2006	US$ 499	ebay.com
5.		Nikon D50	..	78/100	..	+ +	4/5	4.5/5	Apr 2005	US$ 749	ebay.com
6.		Nikon D70	..	..	..	+ +	..	..	Jan 2004	US$ 999	ebay.com
7.		Nikon D80	..	+	..	+ +	o	4.5/5	Aug 2006	US$ 999	ebay.com
8.		Nikon D100	..	..	..	+ +	o	..	Feb 2002	US$ 1 999	ebay.com
9.		Nikon D5000	..	+ +	..	75/100	4/5	4.5/5	Apr 2009	US$ 749	ebay.com
10.		Nikon D5100	5/5	+ +	..	76/100	4.5/5	4.5/5	Apr 2011	US$ 749	ebay.com
11.		Olympus E-330	..	..	..	+	o	..	Jan 2006	US$ 999	ebay.com
12.		Olympus E-410	..	86/100	..	+ +	4/5	4.5/5	Mar 2007	US$ 699	ebay.com
13.		Olympus E-510	..	89/100	..	+ +	3.5/5	4.5/5	Mar 2007	US$ 799	ebay.com
14.		Olympus E-520	..	87/100	..	+ +	4.5/5	4.5/5	May 2008	US$ 699	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.		Panasonic L1	..	85/100	..	+	..	3.5/5	Feb 2006	US$ 999	ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The above review scores should be interpreted 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 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

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