Fujifilm X-A3 vs Olympus E-420

The Fujifilm X-A3 and the Olympus E-420 are two digital cameras that were announced, respectively, in August 2016 and March 2008. The X-A3 is a mirrorless interchangeable lens camera, while the E-420 is a DSLR. The cameras are based on an APS-C (X-A3) and a Four Thirds (E-420) sensor. The Fujifilm has a resolution of 24 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

Fujifilm X-A3		Olympus E-420
Mirrorless system camera		Digital single lens reflex
Fujifilm X mount lenses		Four Thirds lenses
24 MP – APS-C sensor		10 MP – Four Thirds sensor
1080/60p Video		no Video
ISO 200-6,400 (100 - 25,600)		ISO 100-1,600
No viewfinder, LCD framing		Optical viewfinder
3.0" LCD – 1040k dots		2.7" LCD – 215k dots
Tilting touchscreen		Fixed screen (not touch-sensitive)
6 shutter flaps per second		3.5 shutter flaps per second
410 shots per battery charge		500 shots per battery charge
117 x 67 x 40 mm, 339 g		130 x 91 x 53 mm, 440 g

Check X-A3 offers at
ebay.com
Check E-420 offers at
ebay.com

Going beyond this snapshot of core features and characteristics, what are the differences between the Fujifilm X-A3 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.

Body comparison

The physical size and weight of the Fujifilm X-A3 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 consecutive perspectives from the front, the top, and the back are available. All width, height and depth dimensions are rounded to the nearest millimeter.

The X-A3 can be obtained in three different colors (silver, brown, pink), while the E-420 is only available in black.

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 larger (51 percent) than the Fujifilm X-A3. Moreover, the E-420 is markedly heavier (30 percent) than the X-A3. In this context, it is worth noting that neither the X-A3 nor the E-420 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 Fujinon X Lens Catalog (X-A3) and the Four Thirds Lens Catalog (E-420). Mirrorless cameras, such as the Fujifilm X-A3, have moreover the advantage that they have a relatively short flange to focal plane distance and can thus use many lenses from other systems via adapters.

Concerning battery life, the X-A3 gets 410 shots out of its Fujifilm NP-W126S battery, while the E-420 can take 500 images on a single charge of its Olympus BLS-1 power pack. The power pack in the X-A3 can be charged via the USB port, so that it is not always necessary to take the battery charger along when travelling.

The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. 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	Street Price
1.		Fujifilm X-A3	117 mm	67 mm	40 mm	339 g	410	n	Aug 2016	EUR 449	ebay.com
2.		Olympus E-420	130 mm	91 mm	53 mm	440 g	500	n	Mar 2008	EUR 499	ebay.com
3.		Canon SX730	110 mm	64 mm	40 mm	300 g	250	n	Apr 2017	EUR 399	ebay.com
4.		Fujifilm X-A2	117 mm	67 mm	40 mm	350 g	410	n	Jan 2015	EUR 499	ebay.com
5.		Fujifilm X-A5	117 mm	68 mm	40 mm	361 g	450	n	Jan 2018	EUR 449	ebay.com
6.		Fujifilm X-A10	117 mm	67 mm	40 mm	331 g	410	n	Dec 2016	EUR 449	ebay.com
7.		Fujifilm X-E2S	129 mm	75 mm	37 mm	350 g	350	n	Jan 2016	EUR 699	ebay.com
8.		Fujifilm X-E3	121 mm	74 mm	43 mm	337 g	350	n	Sep 2017	EUR 899	ebay.com
9.		Fujifilm X-T10	118 mm	83 mm	41 mm	381 g	350	n	May 2015	EUR 699	ebay.com
10.		Fujifilm X-T20	118 mm	83 mm	41 mm	383 g	350	n	Jan 2017	EUR 799	ebay.com
11.		Olympus E-400	130 mm	91 mm	53 mm	435 g	500	n	Sep 2006	EUR 699	ebay.com
12.		Olympus E-410	130 mm	91 mm	53 mm	435 g	500	n	Mar 2007	EUR 699	ebay.com
13.		Olympus E-450	130 mm	91 mm	53 mm	440 g	500	n	Mar 2009	EUR 449	ebay.com
14.		Olympus E-520	136 mm	92 mm	68 mm	535 g	750	n	May 2008	EUR 599	ebay.com
15.		Olympus E-620	130 mm	94 mm	60 mm	521 g	500	n	Feb 2009	EUR 599	ebay.com
16.		Panasonic TZ90	112 mm	67 mm	41 mm	322 g	380	n	Apr 2017	EUR 429	ebay.com
17.		YI M1	114 mm	64 mm	34 mm	281 g	450	n	Sep 2016	EUR 349	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 X-A3 was launched at a markedly lower price (by 33 percent) than the E-420, 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 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 Fujifilm X-A3 features an APS-C sensor and the Olympus E-420 a Four Thirds sensor. The sensor area in the E-420 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 X-A3 has a native 3:2 aspect ratio, while the one in the E-420 offers a 4:3 aspect.

With 24MP, the X-A3 offers a higher resolution than the E-420 (10MP), but the X-A3 has smaller individual pixels (pixel pitch of 3.92μm versus 4.74μm for the E-420). However, the X-A3 is a much more recent model (by 8 years and 5 months) than the E-420, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixels.

The resolution advantage of the Fujifilm X-A3 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the X-A3 for good quality output (200 dots per inch) amounts to 30 x 20 inches or 76.2 x 50.8 cm, for very good quality (250 dpi) 24 x 16 inches or 61 x 40.6 cm, and for excellent quality (300 dpi) 20 x 13.3 inches or 50.8 x 33.9 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 Fujifilm X-A3 has a native sensitivity range from ISO 200 to ISO 6400, which can be extended to ISO 100-25600. 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.

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 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.		Fujifilm X-A3	APS-C	24.0	6000	4000	1080/60p	23.8	13.1	1664	81
2.		Olympus E-420	Four Thirds	10.0	3648	2736	none	21.5	10.4	527	56
3.		Canon SX730	1/2.3	20.2	5184	3888	1080/60p	20.5	11.9	924	50
4.		Fujifilm X-A2	APS-C	16.0	4896	3264	1080/30p	23.6	12.8	1515	79
5.		Fujifilm X-A5	APS-C	24.0	6000	4000	4K/15p	24.0	13.3	1800	82
6.		Fujifilm X-A10	APS-C	16.0	4896	3264	1080/30p	23.9	13.2	1691	81
7.		Fujifilm X-E2S	APS-C	16.0	4896	3264	1080/60p	23.7	13.0	1608	80
8.		Fujifilm X-E3	APS-C	24.0	6000	4000	4K/30p	23.9	13.3	1764	82
9.		Fujifilm X-T10	APS-C	16.0	4896	3264	1080/60p	23.7	12.9	1546	79
10.		Fujifilm X-T20	APS-C	24.0	6000	4000	4K/30p	23.9	13.2	1704	81
11.		Olympus E-400	Four Thirds	10.0	3648	2736	none	21.0	10.6	127	53
12.		Olympus E-410	Four Thirds	10.0	3648	2736	none	21.1	10.0	494	51
13.		Olympus E-450	Four Thirds	10.0	3648	2736	none	21.5	10.5	512	56
14.		Olympus E-520	Four Thirds	10.0	3648	2736	none	21.4	10.4	548	55
15.		Olympus E-620	Four Thirds	12.2	4032	3024	none	21.3	10.3	536	55
16.		Panasonic TZ90	1/2.3	20.2	5184	3888	4K/30p	19.1	10.6	106	36
17.		YI M1	Four Thirds	20.2	5184	3888	4K/30p	23.0	12.6	1030	73
Note: DXO values in italics represent estimates based on sensor size and age.

Many modern cameras cannot only take still pictures, but also record videos. The X-A3 indeed provides movie recording capabilities, while the E-420 does not. The highest resolution format that the X-A3 can use is 1080/60p.

Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. For example, the E-420 has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the X-A3 relies on live view and the rear LCD for framing. The following table reports on some other key feature differences and similarities of the Fujifilm X-A3, the Olympus E-420, 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.		Fujifilm X-A3	none	n	3.0 / 1040	tilting	Y	1/4000s	6.0/s	Y	n
2.		Olympus E-420	optical	n	2.7 / 215	fixed	n	1/4000s	3.5/s	Y	n
3.		Canon SX730	none	n	3.0 / 922	tilting	n	1/3200s	5.9/s	Y	Y
4.		Fujifilm X-A2	none	n	3.0 / 920	tilting	n	1/4000s	5.6/s	Y	n
5.		Fujifilm X-A5	none	n	3.0 / 1040	tilting	Y	1/4000s	6.0/s	Y	n
6.		Fujifilm X-A10	none	n	3.0 / 1040	tilting	n	1/4000s	6.0/s	Y	n
7.		Fujifilm X-E2S	2360	n	3.0 / 1040	fixed	n	1/4000s	7.0/s	Y	n
8.		Fujifilm X-E3	2360	n	3.0 / 1040	fixed	Y	1/4000s	8.0/s	n	n
9.		Fujifilm X-T10	2360	n	3.0 / 920	tilting	n	1/4000s	8.0/s	Y	n
10.		Fujifilm X-T20	2360	n	3.0 / 1040	tilting	Y	1/4000s	8.0/s	Y	n
11.		Olympus E-400	optical	n	2.5 / 215	fixed	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-450	optical	n	2.7 / 215	fixed	n	1/4000s	3.5/s	Y	n
14.		Olympus E-520	optical	n	2.7 / 215	fixed	n	1/4000s	3.5/s	Y	Y
15.		Olympus E-620	optical	n	2.7 / 230	swivel	n	1/4000s	4.0/s	Y	Y
16.		Panasonic TZ90	1166	n	3.0 / 1040	tilting	Y	1/2000s	10.0/s	Y	Y
17.		YI M1	none	n	3.0 / 1040	fixed	Y	1/4000s	5.0/s	n	n
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The X-A3 has a touchscreen, while the E-420 has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

The reported shutter speed information refers to the use of the mechanical shutter. Yet, some cameras only have an electronic shutter, while others have an electronic shutter in addition to a mechanical one. In fact, the X-A3 is one of those camera that have an additional electronic shutter, which makes completely silent shooting possible. However, this mode is less suitable for photographing moving objects (risk of rolling shutter) or shooting under artificial light sources (risk of flickering).

The Fujifilm X-A3 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 X-A3 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 X-A3 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 Fujifilm X-A3 and Olympus E-420 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.		Fujifilm X-A3	Y	stereo / mono	-	-	micro	2.0	Y	-	-
2.		Olympus E-420	Y	- / -	-	-	-	2.0	-	-	-
3.		Canon SX730	-	stereo / mono	-	-	micro	2.0	Y	Y	Y
4.		Fujifilm X-A2	Y	stereo / mono	-	-	mini	2.0	Y	-	-
5.		Fujifilm X-A5	Y	stereo / mono	Y	-	micro	2.0	Y	-	Y
6.		Fujifilm X-A10	-	stereo / mono	-	-	micro	2.0	Y	-	-
7.		Fujifilm X-E2S	Y	stereo / mono	Y	-	micro	2.0	Y	-	-
8.		Fujifilm X-E3	Y	stereo / mono	Y	-	micro	2.0	Y	-	Y
9.		Fujifilm X-T10	Y	stereo / mono	Y	-	micro	2.0	Y	-	-
10.		Fujifilm X-T20	Y	stereo / mono	Y	-	micro	2.0	Y	-	-
11.		Olympus E-400	Y	- / -	-	-	-	2.0	-	-	-
12.		Olympus E-410	Y	- / -	-	-	-	2.0	-	-	-
13.		Olympus E-450	Y	- / -	-	-	-	2.0	-	-	-
14.		Olympus E-520	Y	- / -	-	-	-	2.0	-	-	-
15.		Olympus E-620	Y	- / -	-	-	-	2.0	-	-	-
16.		Panasonic TZ90	-	stereo / mono	-	-	micro	2.0	Y	-	-
17.		YI M1	Y	stereo / mono	-	-	micro	2.0	Y	-	Y

It is notable that the X-A3 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.

Both the X-A3 and the E-420 have been discontinued, but can regularly be found used on ebay. The X-A3 was replaced by the Fujifilm X-A5, while the E-420 does not have a direct successor. Further information on the features and operation of the X-A3 and E-420 can be found, respectively, in the Fujifilm X-A3 Manual (free pdf) or the online Olympus E-420 Manual.

Review summary

So what conclusions can be drawn? Is there a clear favorite between the Fujifilm X-A3 and the Olympus E-420? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.

Reasons to prefer the Fujifilm X-A3:

• More detail: Offers more megapixels (24 vs 10MP) with a 58% higher linear resolution.
• Better image quality: Features a larger and more technologically advanced imaging sensor.
• Richer colors: The sensor size advantage translates into images with better, more accurate colors.
• More dynamic range: Larger sensor captures a wider spectrum of light and dark details.
• Better low-light sensitivity: Larger sensor produces good images even in poorly lit environments.
• Broader imaging potential: Can record not only still images but also 1080/60p movies.
• 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 (1040k vs 215k dots).
• More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
• Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
• More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
• Faster burst: Shoots at higher frequency (6 vs 3.5 flaps/sec) to capture the decisive moment.
• Less disturbing: Has an electronic shutter option for completely silent shooting.
• Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
• More compact: Is smaller (117x67mm vs 130x91mm) and thus needs less room in the bag.
• Less heavy: Is lighter (by 101g or 23 percent) and hence easier to carry around.
• Easier travel charging: Can be conveniently charged via its USB port.
• More legacy lens friendly: Can take a broad range of non-native lenses via adapters.
• Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
• More affordable: Was introduced into a lower priced category (33 percent cheaper at launch).
• More modern: Reflects 8 years and 5 months of technical progress since the E-420 launch.

Arguments in favor of the Olympus E-420:

• Easier framing: Has an optical viewfinder for image composition and settings control.
• Longer lasting: Gets more shots (500 versus 410) 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 count of relative strengths (bullet points above) is taken as a measure, the X-A3 is the clear winner of the match-up (21 : 4 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 Fujifilm X-A3 and the Olympus E-420 place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens 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 incomplete and does no justice, for example, to the way the X-A3 or the E-420 perform in practice. 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 following table reports the overall ratings of the cameras as published by some of the major 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.		Fujifilm X-A3	..	..	..	74/100	4.5/5	4/5	Aug 2016	EUR 449	ebay.com
2.		Olympus E-420	..	85/100	..	+ +	4/5	4.5/5	Mar 2008	EUR 499	ebay.com
3.		Canon SX730	..	+	..	..	4/5	4/5	Apr 2017	EUR 399	ebay.com
4.		Fujifilm X-A2	4/5	..	..	..	4.5/5	4.5/5	Jan 2015	EUR 499	ebay.com
5.		Fujifilm X-A5	..	+	4.1/5	..	4/5	3.5/5	Jan 2018	EUR 449	ebay.com
6.		Fujifilm X-A10	..	..	..	..	4/5	4/5	Dec 2016	EUR 449	ebay.com
7.		Fujifilm X-E2S	4.5/5	..	..	77/100	4.5/5	4.5/5	Jan 2016	EUR 699	ebay.com
8.		Fujifilm X-E3	4.5/5	+	4.5/5	84/100	4.5/5	4.5/5	Sep 2017	EUR 899	ebay.com
9.		Fujifilm X-T10	4.5/5	+ +	..	80/100	5/5	5/5	May 2015	EUR 699	ebay.com
10.		Fujifilm X-T20	5/5	+ +	5/5	82/100	5/5	4.5/5	Jan 2017	EUR 799	ebay.com
11.		Olympus E-400	..	85/100	..	..	4/5	4/5	Sep 2006	EUR 699	ebay.com
12.		Olympus E-410	..	86/100	..	+ +	4/5	4.5/5	Mar 2007	EUR 699	ebay.com
13.		Olympus E-450	..	..	..	..	4/5	4/5	Mar 2009	EUR 449	ebay.com
14.		Olympus E-520	..	87/100	..	+ +	4.5/5	4.5/5	May 2008	EUR 599	ebay.com
15.		Olympus E-620	3/5	88/100	..	72/100	4.5/5	5/5	Feb 2009	EUR 599	ebay.com
16.		Panasonic TZ90	..	+ +	4/5	..	4/5	4/5	Apr 2017	EUR 429	ebay.com
17.		YI M1	..	..	..	69/100	..	..	Sep 2016	EUR 349	ebay.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. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and comparisons of ratings among very different cameras or across long time periods have little meaning. 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 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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