Leica X1 vs Olympus E-520

The Leica X1 and the Olympus E-520 are two digital cameras that were revealed to the public, respectively, in September 2009 and May 2008. The X1 is a fixed lens compact, while the E-520 is a DSLR. The cameras are based on an APS-C (X1) and a Four Thirds (E-520) sensor. The Leica has a resolution of 12.2 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

Leica X1		Olympus E-520
Fixed lens compact camera		Digital single lens reflex
36mm f/2.8		Four Thirds lenses
12.2 MP – APS-C sensor		10 MP – Four Thirds sensor
no Video		no Video
ISO 100-3,200		ISO 100-1,600
No viewfinder, LCD framing		Optical viewfinder
2.7" LCD – 230k dots		2.7" LCD – 215k dots
Fixed screen (not touch-sensitive)		Fixed screen (not touch-sensitive)
3 shutter flaps per second		3.5 shutter flaps per second
no shake reduction		In-body stabilization
260 shots per battery charge		750 shots per battery charge
124 x 60 x 32 mm, 306 g		136 x 92 x 68 mm, 535 g

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Going beyond this snapshot of core features and characteristics, what are the differences between the Leica X1 and the Olympus E-520? 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 Leica X1 and the Olympus E-520 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 size dimensions are rounded to the nearest millimeter.

The X1 can be obtained in two different colors (black, silver), while the E-520 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-520 is considerably larger (68 percent) than the Leica X1. In this context, it is worth noting that neither the X1 nor the E-520 are weather-sealed.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the X1 has a lens built in, whereas the E-520 is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup. You can compare the optics available for the E-520 and their specifications in the Four Thirds Lens Catalog.

Concerning battery life, the X1 gets 260 shots out of its Leica BP-DC8 battery, while the E-520 can take 750 images on a single charge of its Olympus 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.		Leica X1	124 mm	60 mm	32 mm	306 g	260	n	Sep 2009	1,995	ebay.com
2.		Olympus E-520	136 mm	92 mm	68 mm	535 g	750	n	May 2008	699	ebay.com
3.		Canon G16	109 mm	76 mm	40 mm	356 g	360	n	Aug 2013	549	ebay.com
4.		Fujifilm X100	126 mm	75 mm	54 mm	445 g	300	n	Sep 2010	1,199	ebay.com
5.		Leica X Typ 113	133 mm	73 mm	78 mm	486 g	350	n	Sep 2014	2,295	ebay.com
6.		Leica D-LUX 6	111 mm	68 mm	46 mm	298 g	330	n	Sep 2012	699	ebay.com
7.		Leica X2	124 mm	69 mm	52 mm	345 g	450	n	May 2012	1,995	ebay.com
8.		Leica D-LUX 5	110 mm	65 mm	43 mm	271 g	400	n	Sep 2010	699	ebay.com
9.		Leica V-LUX 2	124 mm	80 mm	95 mm	520 g	410	n	Sep 2010	849	ebay.com
10.		Olympus E-600	130 mm	94 mm	60 mm	535 g	500	n	Aug 2009	449	ebay.com
11.		Olympus E-620	130 mm	94 mm	60 mm	521 g	500	n	Feb 2009	699	ebay.com
12.		Olympus E-420	130 mm	91 mm	53 mm	440 g	500	n	Mar 2008	599	ebay.com
13.		Olympus E-410	130 mm	91 mm	53 mm	435 g	500	n	Mar 2007	699	ebay.com
14.		Olympus E-510	136 mm	92 mm	68 mm	538 g	750	n	Mar 2007	799	ebay.com
15.		Panasonic LX5	110 mm	65 mm	43 mm	271 g	400	n	Jul 2010	499	ebay.com
16.		Sony NEX-3	117 mm	62 mm	33 mm	297 g	330	n	May 2010	599	ebay.com
17.		Sony NEX-5	111 mm	59 mm	38 mm	287 g	330	n	May 2010	699	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. 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 Leica X1 features an APS-C sensor and the Olympus E-520 a Four Thirds sensor. The sensor area in the E-520 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 X1 has a native 3:2 aspect ratio, while the one in the E-520 offers a 4:3 aspect.

With 12.2MP, the X1 offers a higher resolution than the E-520 (10MP), but the X1 nevertheless has larger individual pixels (pixel pitch of 5.51μm versus 4.74μm for the E-520) due to its larger sensor. Moreover, the X1 is a somewhat more recent model (by 1 year and 3 months) than the E-520, and its sensor might have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixels.

The resolution advantage of the Leica X1 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the X1 for good quality output (200 dots per inch) amounts to 21.4 x 14.3 inches or 54.3 x 36.3 cm, for very good quality (250 dpi) 17.1 x 11.4 inches or 43.4 x 29 cm, and for excellent quality (300 dpi) 14.2 x 9.5 inches or 36.2 x 24.2 cm. The corresponding values for the Olympus E-520 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 Leica X1 has a native sensitivity range from ISO 100 to ISO 3200. The corresponding ISO settings for the Olympus E-520 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.

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"). 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.		Leica X1	APS-C	12.2	4272	2856	none	22.6	11.8	1037	69
2.		Olympus E-520	Four Thirds	10.0	3648	2736	none	21.4	10.4	548	55
3.		Canon G16	1/1.7	12.0	4000	3000	1080/60p	21.0	11.7	230	54
4.		Fujifilm X100	APS-C	12.2	4288	2848	720/30p	22.9	12.4	1001	73
5.		Leica X Typ 113	APS-C	16.1	4928	3264	1080/30p	23.6	12.8	1491	78
6.		Leica D-LUX 6	1/1.7	10.0	3648	2736	1080/60p	19.8	10.8	-303	43
7.		Leica X2	APS-C	16.1	4928	3264	none	23.2	12.4	1275	74
8.		Leica D-LUX 5	1/1.7	10.0	3648	2736	720/60p	19.5	10.4	-583	39
9.		Leica V-LUX 2	1/2.3	14.0	4320	3240	1080/60i	19.4	10.7	321	39
10.		Olympus E-600	Four Thirds	12.2	4032	3024	none	21.5	10.3	541	55
11.		Olympus E-620	Four Thirds	12.2	4032	3024	none	21.3	10.3	536	55
12.		Olympus E-420	Four Thirds	10.0	3648	2736	none	21.5	10.4	527	56
13.		Olympus E-410	Four Thirds	10.0	3648	2736	none	21.1	10.0	494	51
14.		Olympus E-510	Four Thirds	10.0	3648	2736	none	21.2	10.0	442	52
15.		Panasonic LX5	1/1.7	10.0	3648	2736	720/60p	19.6	10.8	132	41
16.		Sony NEX-3	APS-C	14.0	4592	3056	720/30p	22.1	12.0	830	68
17.		Sony NEX-5	APS-C	14.0	4592	3056	1080/60i	22.2	12.2	796	69
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. For example, the E-520 has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the X1 relies on live view and the rear LCD for framing. The adjacent table lists some of the other core features of the Leica X1 and Olympus E-520 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.		Leica X1	none	n	2.7 / 230	fixed	n	1/2000s	3.0/s	Y	n
2.		Olympus E-520	optical	n	2.7 / 215	fixed	n	1/4000s	3.5/s	Y	Y
3.		Canon G16	optical	n	3.0 / 922	fixed	n	1/4000s	2.2/s	Y	Y
4.		Fujifilm X100	1440	n	2.8 / 460	fixed	n	1/4000s	5.0/s	Y	n
5.		Leica X Typ 113	optional	n	3.0 / 920	fixed	n	1/2000s	5.0/s	Y	n
6.		Leica D-LUX 6	optional	n	3.0 / 920	fixed	n	1/4000s	11.0/s	Y	Y
7.		Leica X2	optional	n	2.7 / 230	fixed	n	1/2000s	5.0/s	Y	n
8.		Leica D-LUX 5	optional	n	3.0 / 460	fixed	n	1/4000s	2.5/s	Y	Y
9.		Leica V-LUX 2	202	n	3.0 / 460	swivel	n	1/2000s	11.0/s	Y	Y
10.		Olympus E-600	optical	n	2.7 / 230	swivel	n	1/4000s	4.0/s	Y	Y
11.		Olympus E-620	optical	n	2.7 / 230	swivel	n	1/4000s	4.0/s	Y	Y
12.		Olympus E-420	optical	n	2.7 / 215	fixed	n	1/4000s	3.5/s	Y	n
13.		Olympus E-410	optical	n	2.5 / 215	fixed	n	1/4000s	3.0/s	Y	n
14.		Olympus E-510	optical	n	2.5 / 215	fixed	n	1/4000s	3.0/s	Y	Y
15.		Panasonic LX5	optional	n	3.0 / 460	fixed	n	1/4000s	2.5/s	Y	Y
16.		Sony NEX-3	optional	n	3.0 / 920	tilting	n	1/4000s	7.0/s	n	n
17.		Sony NEX-5	optional	n	3.0 / 920	tilting	n	1/4000s	7.0/s	n	n
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

The X1 writes its imaging data to SDHC cards, while the E-520 uses Compact Flash or xD Picture cards. The E-520 features dual card slots, which can be very useful in case a memory card fails. In contrast, the X1 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 Leica X1 and Olympus E-520 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.		Leica X1	Y	- / -	-	-	mini	2.0	-	-	-
2.		Olympus E-520	Y	- / -	-	-	-	2.0	-	-	-
3.		Canon G16	Y	stereo / mono	-	-	mini	2.0	Y	-	-
4.		Fujifilm X100	Y	stereo / -	-	-	mini	2.0	-	-	-
5.		Leica X Typ 113	Y	stereo / mono	-	-	mini	2.0	-	-	-
6.		Leica D-LUX 6	Y	stereo / mono	-	-	mini	2.0	-	-	-
7.		Leica X2	Y	- / -	-	-	mini	2.0	-	-	-
8.		Leica D-LUX 5	Y	mono / mono	-	-	mini	2.0	-	-	-
9.		Leica V-LUX 2	Y	stereo / mono	-	-	mini	2.0	-	-	-
10.		Olympus E-600	Y	- / -	-	-	-	2.0	-	-	-
11.		Olympus E-620	Y	- / -	-	-	-	2.0	-	-	-
12.		Olympus E-420	Y	- / -	-	-	-	2.0	-	-	-
13.		Olympus E-410	Y	- / -	-	-	-	2.0	-	-	-
14.		Olympus E-510	Y	- / -	-	-	-	2.0	-	-	-
15.		Panasonic LX5	Y	mono / mono	-	-	mini	2.0	-	-	-
16.		Sony NEX-3	Y	stereo / mono	-	-	mini	2.0	-	-	-
17.		Sony NEX-5	Y	stereo / mono	-	-	mini	2.0	-	-	-

Both the X1 and the E-520 have been discontinued, but can regularly be found used on ebay. The X1 was replaced by the Leica X2, while the E-520 does not have a direct successor. Further information on the features and operation of the X1 and E-520 can be found, respectively, in the Leica X1 Manual (free pdf) or the online Olympus E-520 Manual.

Review summary

So what conclusions can be drawn? Is the Leica X1 better than the Olympus E-520 or vice versa? The listing below highlights the relative strengths of the two models.

Advantages of the Leica X1:

• More detail: Offers more megapixels (12.2 vs 10MP) with a 13% 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.
• Ready to shoot: Comes with a built-in lens, while the E-520 requires a separate lens.
• More compact: Is smaller (124x60mm vs 136x92mm) and thus needs less room in the bag.
• Less heavy: Is lighter even though it comes with a built-in lens (unlike the E-520).
• More prestigious: Has the Leica luxury appeal, which ensures a high resale price.
• More modern: Is somewhat more recent (announced 1 year and 3 months after the E-520).

Arguments in favor of the Olympus E-520:

• Easier framing: Has an optical viewfinder for image composition and settings control.
• Faster shutter: Has higher mechanical shutter speed (1/4000s vs 1/2000s) to freeze action.
• Faster burst: Shoots at higher frequency (3.5 vs 3 flaps/sec) to capture the decisive moment.
• More flexible: Makes it possible to change lenses and thus to use specialty optics.
• Longer lasting: Gets more shots (750 versus 260) 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 heavily discounted: Has been on the market for longer (launched in May 2008).

If the number of relative strengths (bullet points above) is taken as a guide, the X1 emerges as the winner of the contest (10 : 8 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 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 Leica X1 and the Olympus E-520 place the cameras among the top in their class? Find out in the latest Best Prime Lens Compact Camera and Best DSLR Camera listings whether the two cameras rank among the cream of the crop.

In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it says little about, for example, the shooting experience and imaging performance of the X1 and the E-520 in practical situations. At times, user reviews, such as those published at amazon, address these issues in a useful manner, but such feedback is on many occasions incomplete, inconsistent, and unreliable.

Expert reviews

This is why expert reviews 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.		Leica X1	3/5	..	..	+	..	4/5	Sep 2009	1,995	ebay.com
2.		Olympus E-520	..	87/100	..	+ +	4.5/5	4.5/5	May 2008	699	ebay.com
3.		Canon G16	4/5	+	..	..	4.5/5	4.5/5	Aug 2013	549	ebay.com
4.		Fujifilm X100	3/5	..	..	75/100	4/5	5/5	Sep 2010	1,199	ebay.com
5.		Leica X Typ 113	3.5/5	..	..	..	3.5/5	4/5	Sep 2014	2,295	ebay.com
6.		Leica D-LUX 6	..	..	..	..	4/5	4/5	Sep 2012	699	ebay.com
7.		Leica X2	3/5	..	..	..	3/5	4/5	May 2012	1,995	ebay.com
8.		Leica D-LUX 5	..	..	..	..	4.5/5	4/5	Sep 2010	699	ebay.com
9.		Leica V-LUX 2	..	..	..	..	..	..	Sep 2010	849	ebay.com
10.		Olympus E-600	..	..	..	..	..	4.5/5	Aug 2009	449	ebay.com
11.		Olympus E-620	3/5	88/100	..	72/100	4.5/5	5/5	Feb 2009	699	ebay.com
12.		Olympus E-420	..	85/100	..	+ +	4/5	4.5/5	Mar 2008	599	ebay.com
13.		Olympus E-410	..	86/100	..	+ +	4/5	4.5/5	Mar 2007	699	ebay.com
14.		Olympus E-510	..	89/100	..	+ +	3.5/5	4.5/5	Mar 2007	799	ebay.com
15.		Panasonic LX5	4/5	+	..	73/100	4.5/5	4.5/5	Jul 2010	499	ebay.com
16.		Sony NEX-3	..	..	..	70/100	4.5/5	4/5	May 2010	599	ebay.com
17.		Sony NEX-5	3/5	+ +	..	71/100	4.5/5	4/5	May 2010	699	ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

Care should be taken when interpreting the review scores above, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. 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, please note that some of the review sites have changed their methodology and reporting over time.

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Other camera comparisons

Did this review help to inform your camera decision process? If you would like to see a different side-by-side camera review, just use the search menu below. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.

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