Olympus E-420 vs E-500

The Olympus E-420 and the Olympus Evolt E-500 are two digital cameras that were officially introduced, respectively, in March 2008 and September 2005. Both are DSLR (Digital Single Lens Reflex) cameras that are equipped with a Four Thirds sensor. The E-420 has a resolution of 10 megapixels, whereas the E-500 provides 8 MP.

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

Headline Specifications

Olympus E-420		Olympus E-500
Digital single lens reflex		Digital single lens reflex
Four Thirds lenses		Four Thirds lenses
10 MP – Four Thirds sensor		8 MP – Four Thirds sensor
no Video		no Video
ISO 100-1,600		ISO 100-400 (100 - 1,600)
Optical viewfinder		Optical viewfinder
2.7" LCD – 215k dots		2.5" LCD – 215k dots
Fixed screen (not touch-sensitive)		Fixed screen (not touch-sensitive)
3.5 shutter flaps per second		2.5 shutter flaps per second
500 shots per battery charge		750 shots per battery charge
130 x 91 x 53 mm, 440 g		130 x 95 x 66 mm, 479 g

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Going beyond this snapshot of core features and characteristics, what are the differences between the Olympus E-420 and the Olympus Evolt E-500? 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 Olympus E-420 and the Olympus E-500 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-500 is somewhat larger (4 percent) than the Olympus E-420. Moreover, the E-500 is markedly heavier (9 percent) than the E-420. In this context, it is worth noting that neither the E-420 nor the E-500 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. In this particular case, both cameras feature the same lens mount, so that they can use the same lenses. You can compare the optics available in the Four Thirds Lens Catalog.

Concerning battery life, the E-420 gets 500 shots out of its BLS-1 battery, while the E-500 can take 750 images on a single charge of its BLM-1 power pack.

The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. In case you want to display and compare another camera duo, you can use the CAM-parator app to select your camera combination among a large number of options.

Body Specifications

		Camera Model	Camera Width	Camera Height	Camera Depth	Camera Weight	Battery Life	Weather Sealing	Camera Launch	Launch Price (USD)	Street Price
1.		Olympus E-420	130 mm	91 mm	53 mm	440 g	500	n	Mar 2008	599	ebay.com
2.		Olympus E-500	130 mm	95 mm	66 mm	479 g	750	n	Sep 2005	599	ebay.com
3.		Nikon D3000	126 mm	97 mm	64 mm	536 g	500	n	Jul 2009	599	ebay.com
4.		Nikon D60	126 mm	94 mm	64 mm	522 g	500	n	Jan 2008	629	ebay.com
5.		Nikon D40X	124 mm	94 mm	64 mm	522 g	520	n	Mar 2007	729	ebay.com
6.		Olympus E-450	130 mm	91 mm	53 mm	440 g	500	n	Mar 2009	499	ebay.com
7.		Olympus E-600	130 mm	94 mm	60 mm	535 g	500	n	Aug 2009	449	ebay.com
8.		Olympus E-620	130 mm	94 mm	60 mm	521 g	500	n	Feb 2009	699	ebay.com
9.		Olympus E-520	136 mm	92 mm	68 mm	535 g	750	n	May 2008	699	ebay.com
10.		Olympus E-410	130 mm	91 mm	53 mm	435 g	500	n	Mar 2007	699	ebay.com
11.		Olympus E-510	136 mm	92 mm	68 mm	538 g	750	n	Mar 2007	799	ebay.com
12.		Olympus E-330	140 mm	87 mm	72 mm	637 g	750	n	Jan 2006	999	ebay.com
13.		Olympus E-400	130 mm	91 mm	53 mm	435 g	500	n	Sep 2006	699	ebay.com
14.		Olympus E-300	147 mm	85 mm	64 mm	624 g	750	n	Sep 2004	799	ebay.com
15.		Panasonic L10	135 mm	96 mm	78 mm	556 g	450	n	Aug 2007	599	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 naturally be influenced heavily by the price. 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 two cameras under review were launched at the same price and fall into the same 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 size of the sensor inside a digital camera is one of the key determinants of image quality. A large sensor will generally have larger individual pixels that offer better low-light sensitivity, provide wider dynamic range, and have 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.

Both cameras under consideration feature a Four Thirds sensor and have a format factor (sometimes also referred to as "crop factor") of 2.0. Within the spectrum of camera sensors, this places the review cameras among the medium-sized sensor cameras that aim to strike a balance between image quality and portability. Both cameras feature a native aspect ratio (sensor width to sensor height) of 4:3.

In terms of chip-set technology, the E-420 uses a more advanced image processing engine (TruePic III) than the E-500 (TruePic), with benefits for noise reduction, color accuracy, and processing speed.

While the two cameras under review share the same sensor size, the E-420 offers a higher resolution of 10 megapixels, compared with 8 MP of the E-500. This megapixels advantage translates into a 12 percent gain in linear resolution. On the other hand, these sensor specs imply that the E-420 has a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 4.74μm versus 5.30μm for the E-500). In this context, it should be noted, however, that the E-420 is much more recent (by 2 years and 5 months) than the E-500, and its sensor will have benefitted from technological advances during this time that compensate for the smaller pixel size.

The resolution advantage of the Olympus E-420 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the E-420 for good quality output (200 dots per inch) amounts to 18.2 x 13.7 inches or 46.3 x 34.7 cm, for very good quality (250 dpi) 14.6 x 10.9 inches or 37.1 x 27.8 cm, and for excellent quality (300 dpi) 12.2 x 9.1 inches or 30.9 x 23.2 cm. The corresponding values for the Olympus E-500 are 16.3 x 12.2 inches or 41.5 x 31.1 cm for good quality, 13.1 x 9.8 inches or 33.2 x 24.9 cm for very good quality, and 10.9 x 8.2 inches or 27.6 x 20.7 cm for excellent quality prints.

The Olympus E-420 has a native sensitivity range from ISO 100 to ISO 1600. The corresponding ISO settings for the Olympus Evolt E-500 are ISO 100 to ISO 400, with the possibility to increase the ISO range to 100-1600.

In terms of underlying technology, the E-420 is build around a CMOS sensor, while the E-500 uses a CCD 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 assesses and scores the color depth ("DXO Portrait"), dynamic range ("DXO Landscape"), and low-light sensitivity ("DXO Sports") of camera sensors, and also publishes an overall camera score. 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.		Olympus E-420	Four Thirds	10.0	3648	2736	none	21.5	10.4	527	56
2.		Olympus E-500	Four Thirds	8.0	3264	2448	none	20.7	10.3	45	51
3.		Nikon D3000	APS-C	10.0	3872	2592	none	22.3	11.1	563	62
4.		Nikon D60	APS-C	10.0	3872	2592	none	22.5	11.4	562	65
5.		Nikon D40X	APS-C	10.0	3872	2592	none	22.4	11.4	516	63
6.		Olympus E-450	Four Thirds	10.0	3648	2736	none	21.5	10.5	512	56
7.		Olympus E-600	Four Thirds	12.2	4032	3024	none	21.5	10.3	541	55
8.		Olympus E-620	Four Thirds	12.2	4032	3024	none	21.3	10.3	536	55
9.		Olympus E-520	Four Thirds	10.0	3648	2736	none	21.4	10.4	548	55
10.		Olympus E-410	Four Thirds	10.0	3648	2736	none	21.1	10.0	494	51
11.		Olympus E-510	Four Thirds	10.0	3648	2736	none	21.2	10.0	442	52
12.		Olympus E-330	Four Thirds	7.4	3136	2352	none	20.8	10.4	73	52
13.		Olympus E-400	Four Thirds	10.0	3648	2736	none	21.0	10.6	127	53
14.		Olympus E-300	Four Thirds	8.0	3264	2448	none	20.4	10.1	-40	48
15.		Panasonic L10	Four Thirds	10.0	3648	2736	none	21.3	10.8	429	55
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 variety of features. The E-420 and the E-500 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 (95%), but the viewfinder of the E-420 has a higher magnification than the one of the E-500 (0.46x vs 0.45x), 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 Olympus E-420, the Olympus E-500, and comparable 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.		Olympus E-420	optical	n	2.7 / 215	fixed	n	1/4000s	3.5/s	Y	n
2.		Olympus E-500	optical	n	2.5 / 215	fixed	n	1/4000s	2.5/s	Y	n
3.		Nikon D3000	optical	n	3.0 / 230	fixed	n	1/4000s	3.0/s	Y	n
4.		Nikon D60	optical	n	2.5 / 230	fixed	n	1/4000s	3.0/s	Y	n
5.		Nikon D40X	optical	n	2.5 / 230	fixed	n	1/4000s	3.0/s	Y	n
6.		Olympus E-450	optical	n	2.7 / 215	fixed	n	1/4000s	3.5/s	Y	n
7.		Olympus E-600	optical	n	2.7 / 230	swivel	n	1/4000s	4.0/s	Y	Y
8.		Olympus E-620	optical	n	2.7 / 230	swivel	n	1/4000s	4.0/s	Y	Y
9.		Olympus E-520	optical	n	2.7 / 215	fixed	n	1/4000s	3.5/s	Y	Y
10.		Olympus E-410	optical	n	2.5 / 215	fixed	n	1/4000s	3.0/s	Y	n
11.		Olympus E-510	optical	n	2.5 / 215	fixed	n	1/4000s	3.0/s	Y	Y
12.		Olympus E-330	optical	n	2.5 / 215	tilting	n	1/4000s	3.0/s	Y	n
13.		Olympus E-400	optical	n	2.5 / 215	fixed	n	1/4000s	3.0/s	Y	n
14.		Olympus E-300	optical	n	1.8 / 134	fixed	n	1/4000s	2.5/s	Y	n
15.		Panasonic L10	optical	n	2.5 / 207	swivel	n	1/4000s	3.0/s	Y	n
Notes: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

Concerning the storage of imaging data, both the E-420 and the E-500 write their files to Compact Flash or xD Picture cards. Both cameras feature dual card slots, which can be very useful in case a memory card fails.

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 Olympus E-420 and Olympus Evolt E-500 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.		Olympus E-420	Y	- / -	-	-	-	2.0	-	-	-
2.		Olympus E-500	Y	- / -	-	-	-	2.0	-	-	-
3.		Nikon D3000	Y	- / -	-	-	-	2.0	-	-	-
4.		Nikon D60	Y	- / -	-	-	-	2.0	-	-	-
5.		Nikon D40X	Y	- / -	-	-	-	2.0	-	-	-
6.		Olympus E-450	Y	- / -	-	-	-	2.0	-	-	-
7.		Olympus E-600	Y	- / -	-	-	-	2.0	-	-	-
8.		Olympus E-620	Y	- / -	-	-	-	2.0	-	-	-
9.		Olympus E-520	Y	- / -	-	-	-	2.0	-	-	-
10.		Olympus E-410	Y	- / -	-	-	-	2.0	-	-	-
11.		Olympus E-510	Y	- / -	-	-	-	2.0	-	-	-
12.		Olympus E-330	Y	- / -	-	-	-	2.0	-	-	-
13.		Olympus E-400	Y	- / -	-	-	-	2.0	-	-	-
14.		Olympus E-300	Y	- / -	-	-	-	2.0	-	-	-
15.		Panasonic L10	Y	- / -	-	-	-	2.0	-	-	-

Both the E-420 and the E-500 have been discontinued, but can regularly be found used on ebay. The E-500 was replaced by the Olympus E-510, while the E-420 does not have a direct successor. Further information on the features and operation of the E-420 and E-500 can be found, respectively, in the Olympus E-420 Manual (free pdf) or the online Olympus E-500 Manual.

Review summary

So how do things add up? Is the Olympus E-420 better than the Olympus E-500 or vice versa? Below is a summary of the relative strengths of each of the two contestants.

Arguments in favor of the Olympus E-420:

• More detail: Offers more megapixels (10 vs 8MP) with a 12% higher linear resolution.
• Better jpgs: Has a more modern image processing engine (TruePic III vs TruePic).
• Larger viewfinder image: Features a viewfinder with a higher magnification (0.46x vs 0.45x).
• Larger screen: Has a bigger rear LCD (2.7" vs 2.5") for image review and settings control.
• Faster burst: Shoots at higher frequency (3.5 vs 2.5 flaps/sec) to capture the decisive moment.
• More modern: Reflects 2 years and 5 months of technical progress since the E-500 launch.

Reasons to prefer the Olympus Evolt E-500:

• Longer lasting: Gets more shots (750 versus 500) out of a single battery charge.
• More heavily discounted: Has been around for much longer (launched in September 2005).

If the count of relative strengths (bullet points above) is taken as a measure, the E-420 is the clear winner of the match-up (6 : 2 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 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 Olympus E-420 and the Olympus E-500 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 E-420 or the E-500. 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 why hands-on reviews by experts are important. 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 (USD)	Street Price
1.		Olympus E-420	..	85/100	..	+ +	4/5	4.5/5	Mar 2008	599	ebay.com
2.		Olympus E-500	..	76/100	..	+ +	..	..	Sep 2005	599	ebay.com
3.		Nikon D3000	..	+	..	72/100	4/5	4.5/5	Jul 2009	599	ebay.com
4.		Nikon D60	..	80/100	..	+ +	4/5	4.5/5	Jan 2008	629	ebay.com
5.		Nikon D40X	..	79/100	..	+ +	4/5	4/5	Mar 2007	729	ebay.com
6.		Olympus E-450	..	..	..	..	4/5	4/5	Mar 2009	499	ebay.com
7.		Olympus E-600	..	..	..	..	..	4.5/5	Aug 2009	449	ebay.com
8.		Olympus E-620	3/5	88/100	..	72/100	4.5/5	5/5	Feb 2009	699	ebay.com
9.		Olympus E-520	..	87/100	..	+ +	4.5/5	4.5/5	May 2008	699	ebay.com
10.		Olympus E-410	..	86/100	..	+ +	4/5	4.5/5	Mar 2007	699	ebay.com
11.		Olympus E-510	..	89/100	..	+ +	3.5/5	4.5/5	Mar 2007	799	ebay.com
12.		Olympus E-330	..	..	..	+	o	..	Jan 2006	999	ebay.com
13.		Olympus E-400	..	85/100	..	..	4/5	4/5	Sep 2006	699	ebay.com
14.		Olympus E-300	..	..	..	+	o	4.5/5	Sep 2004	799	ebay.com
15.		Panasonic L10	..	85/100	..	+	3.5/5	4/5	Aug 2007	599	ebay.com
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The review scores listed above should be treated 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. Hence, a score should always be seen in the context of the camera's market launch date and its price, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

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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 make your choice using the following search menu. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.

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