Leica TL vs Olympus E-M10

The Leica TL and the Olympus OM-D E-M10 are two digital cameras that were revealed to the public, respectively, in November 2016 and January 2014. Both the TL and the E-M10 are mirrorless interchangeable lens cameras that are based on an APS-C (TL) and a Four Thirds (E-M10) sensor. The Leica has a resolution of 16.1 megapixels, whereas the Olympus provides 15.9 MP.

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

Headline Specifications

Leica TL		Olympus E-M10
Mirrorless system camera		Mirrorless system camera
Leica T mount lenses		Micro Four Thirds lenses
16.1 MP – APS-C sensor		15.9 MP – Four Thirds sensor
1080/30p Video		1080/30p Video
ISO 100-12,500		ISO 200-25,600
Viewfinder optional		Electronic viewfinder (1440k dots)
3.7" LCD – 1230k dots		3.0" LCD – 1037k dots
Fixed touchscreen		Tilting touchscreen
5 shutter flaps per second		8 shutter flaps per second
Lens stabilization only		In-body stabilization
400 shots per battery charge		320 shots per battery charge
134 x 69 x 33 mm, 384 g		119 x 82 x 46 mm, 396 g

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Going beyond this snapshot of core features and characteristics, what are the differences between the Leica TL and the Olympus OM-D E-M10? 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 side-by-side display below illustrates the physical size and weight of the Leica TL and the Olympus E-M10. 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 TL can be obtained in three different colors (black, silver, titanium), while the E-M10 is available in two color-versions (black, silver).

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Olympus E-M10 is notably larger (6 percent) than the Leica TL. Moreover, the E-M10 is slightly heavier (3 percent) than the TL. In this context, it is worth noting that neither the TL nor the E-M10 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. Hence, you might want to study and compare the specifications of available lenses in order to get the full picture of the size and weight of the two camera systems.

Concerning battery life, the TL gets 400 shots out of its Leica BP-DC13 battery, while the E-M10 can take 320 images on a single charge of its Olympus BLS-5 power pack. The power pack in the TL can be charged via the USB port, so that it is not always necessary to take the battery charger along when travelling.

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.		Leica TL	134 mm	69 mm	33 mm	384 g	400	n	Nov 2016	US$ 1 695	ebay.com
2.		Olympus E-M10	119 mm	82 mm	46 mm	396 g	320	n	Jan 2014	US$ 699	ebay.com
3.		Fujifilm X-A2	117 mm	67 mm	40 mm	350 g	410	n	Jan 2015	US$ 399	ebay.com
4.		Fujifilm X-A10	117 mm	67 mm	40 mm	331 g	410	n	Dec 2016	US$ 399	ebay.com
5.		Fujifilm X-E2S	129 mm	75 mm	37 mm	350 g	350	n	Jan 2016	US$ 699	ebay.com
6.		Fujifilm X-Pro1	140 mm	82 mm	43 mm	450 g	300	n	Jan 2012	US$ 1 699	ebay.com
7.		Fujifilm X-T10	118 mm	83 mm	41 mm	381 g	350	n	May 2015	US$ 799	ebay.com
8.		Fujifilm X70	113 mm	64 mm	44 mm	340 g	330	n	Jan 2016	US$ 799	ebay.com
9.		Leica CL	131 mm	78 mm	45 mm	403 g	220	n	Nov 2017	US$ 2 795	ebay.com
10.		Leica T	134 mm	69 mm	33 mm	384 g	400	n	Apr 2014	US$ 1 849	ebay.com
11.		Leica TL2	134 mm	69 mm	33 mm	399 g	250	n	Jul 2017	US$ 1 949	ebay.com
12.		Leica X2	124 mm	69 mm	52 mm	345 g	450	n	May 2012	US$ 1 999	ebay.com
13.		Olympus E-M10 II	120 mm	83 mm	47 mm	390 g	320	n	Aug 2015	US$ 649	ebay.com
14.		Olympus E-P5	122 mm	69 mm	37 mm	420 g	330	n	May 2013	US$ 999	ebay.com
15.		Olympus E-PL7	115 mm	67 mm	38 mm	357 g	350	n	Aug 2014	US$ 599	ebay.com
16.		Panasonic G6	122 mm	85 mm	71 mm	390 g	340	n	Apr 2013	US$ 599	ebay.com
17.		Panasonic GX7	123 mm	71 mm	55 mm	402 g	350	n	Aug 2013	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

Any camera decision will obviously take relative prices into account. The retail prices at the time of the camera’s release place the model in the market relative to other models in the producer’s line-up and the competition. The E-M10 was launched at a markedly lower price (by 59 percent) than the TL, 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.

Sensor comparison

The size of the imaging sensor is a crucial determinant of image quality. A large sensor will tend to have larger individual pixels that provide better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixel-units in a sensor of the same technological generation. Moreover, a large sensor camera will give the photographer more control over depth-of-field in the image and, thus, the ability to better 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 Leica TL features an APS-C sensor and the Olympus E-M10 a Four Thirds sensor. The sensor area in the E-M10 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 TL has a native 3:2 aspect ratio, while the one in the E-M10 offers a 4:3 aspect.

With 16.1MP, the TL offers a slightly higher resolution than the E-M10 (15.9MP), but the TL nevertheless has larger individual pixels (pixel pitch of 4.80μm versus 3.76μm for the E-M10) due to its larger sensor. Moreover, the TL is a much more recent model (by 2 years and 9 months) than the E-M10, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixels. Coming back to sensor resolution, it should be mentioned that neither of the two cameras has an anti-alias filter installed, so they are able to capture all the detail the sensor resolves.

The Leica TL has a native sensitivity range from ISO 100 to ISO 12500. The corresponding ISO settings for the Olympus OM-D E-M10 are ISO 200 to ISO 25600, with the possibility to increase the ISO range to 100-25600.

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 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"). 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.		Leica TL	APS-C	16.1	4928	3264	1080/30p	23.9	13.2	1690	81
2.		Olympus E-M10	Four Thirds	15.9	4608	3456	1080/30p	22.8	12.3	884	72
3.		Fujifilm X-A2	APS-C	16.0	4896	3264	1080/30p	23.6	12.8	1515	79
4.		Fujifilm X-A10	APS-C	16.0	4896	3264	1080/30p	23.9	13.2	1691	81
5.		Fujifilm X-E2S	APS-C	16.0	4896	3264	1080/60p	23.7	13.0	1608	80
6.		Fujifilm X-Pro1	APS-C	16.0	4896	3264	1080/24p	23.1	12.3	1238	74
7.		Fujifilm X-T10	APS-C	16.0	4896	3264	1080/60p	23.7	12.9	1546	79
8.		Fujifilm X70	APS-C	16.0	4896	3264	1080/60p	23.7	13.0	1608	80
9.		Leica CL	APS-C	24.1	6014	4014	4K/30p	24.0	13.3	1788	82
10.		Leica T	APS-C	16.2	4944	3278	1080/30p	23.0	12.7	1082	75
11.		Leica TL2	APS-C	24.1	6014	4014	4K/30p	23.9	13.3	1753	82
12.		Leica X2	APS-C	16.1	4928	3264	none	23.2	12.4	1275	74
13.		Olympus E-M10 II	Four Thirds	15.9	4608	3456	1080/60p	23.1	12.5	842	73
14.		Olympus E-P5	Four Thirds	15.9	4608	3456	1080/30p	22.8	12.4	895	72
15.		Olympus E-PL7	Four Thirds	15.9	4608	3456	1080/30p	22.7	12.4	873	72
16.		Panasonic G6	Four Thirds	15.9	4608	3456	1080/60p	21.3	11.5	639	61
17.		Panasonic GX7	Four Thirds	15.8	4592	3448	1080/60p	22.6	12.2	718	70
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 two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, and both provide the same movie specifications (1080/30p).

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the E-M10 has an electronic viewfinder (1440k dots), which can be very helpful when shooting in bright sunlight. In contrast, the TL relies on live view and the rear LCD for framing. That said, the TL can be equipped with an optional viewfinder – the Visoflex (Typ 020). The table below summarizes some of the other core capabilities of the Leica TL and Olympus E-M10 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.		Leica TL	optional	n	3.7 / 1230	fixed	Y	1/4000s	5.0/s	Y	n
2.		Olympus E-M10	1440	n	3.0 / 1037	tilting	Y	1/4000s	8.0/s	Y	Y
3.		Fujifilm X-A2	none	n	3.0 / 920	tilting	n	1/4000s	5.6/s	Y	n
4.		Fujifilm X-A10	none	n	3.0 / 1040	tilting	n	1/4000s	6.0/s	Y	n
5.		Fujifilm X-E2S	2360	n	3.0 / 1040	fixed	n	1/4000s	7.0/s	Y	n
6.		Fujifilm X-Pro1	1440	n	3.0 / 1230	fixed	n	1/4000s	6.0/s	n	n
7.		Fujifilm X-T10	2360	n	3.0 / 920	tilting	n	1/4000s	8.0/s	Y	n
8.		Fujifilm X70	optional	n	3.0 / 1040	tilting	Y	1/4000s	8.0/s	Y	n
9.		Leica CL	2360	Y	3.0 / 1040	fixed	Y	1/8000s	10.0/s	n	n
10.		Leica T	optional	n	3.7 / 1230	fixed	Y	1/4000s	5.0/s	Y	n
11.		Leica TL2	optional	n	3.7 / 1230	fixed	Y	1/4000s	7.0/s	n	n
12.		Leica X2	optional	n	2.7 / 230	fixed	n	1/2000s	5.0/s	Y	n
13.		Olympus E-M10 II	2360	n	3.0 / 1040	tilting	Y	1/4000s	8.0/s	Y	Y
14.		Olympus E-P5	optional	n	3.0 / 1037	tilting	Y	1/8000s	9.0/s	Y	Y
15.		Olympus E-PL7	optional	n	3.0 / 1037	tilting	Y	1/4000s	8.0/s	n	Y
16.		Panasonic G6	1440	n	3.0 / 1036	swivel	Y	1/4000s	7.0/s	Y	n
17.		Panasonic GX7	2760	n	3.0 / 1040	tilting	Y	1/8000s	5.0/s	Y	Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One feature that differentiates the E-M10 and the TL is in-body image stabilization (IBIS). The E-M10 reduces the risk of handshake-induced blur with all attached lenses, while the TL offers no blur reduction with lenses that themselves do not provide optical image stabilization.

The Olympus E-M10 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.

Concerning the storage of imaging data, both the TL and the E-M10 write their files to SDXC cards. The E-M10 supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the TL cannot take advantage of Ultra High Speed SD cards.

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 TL and Olympus OM-D E-M10 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 TL	Y	stereo / mono	-	-	micro	2.0	Y	-	-
2.		Olympus E-M10	Y	stereo / mono	-	-	micro	2.0	Y	-	-
3.		Fujifilm X-A2	Y	stereo / mono	-	-	mini	2.0	Y	-	-
4.		Fujifilm X-A10	-	stereo / mono	-	-	micro	2.0	Y	-	-
5.		Fujifilm X-E2S	Y	stereo / mono	Y	-	micro	2.0	Y	-	-
6.		Fujifilm X-Pro1	Y	stereo / mono	-	-	mini	2.0	-	-	-
7.		Fujifilm X-T10	Y	stereo / mono	Y	-	micro	2.0	Y	-	-
8.		Fujifilm X70	Y	stereo / mono	Y	-	micro	2.0	Y	-	-
9.		Leica CL	Y	stereo / mono	-	-	-	-	Y	-	-
10.		Leica T	Y	stereo / mono	-	-	-	2.0	Y	-	-
11.		Leica TL2	Y	stereo / mono	-	-	micro	3.0	Y	-	-
12.		Leica X2	Y	- / -	-	-	mini	2.0	-	-	-
13.		Olympus E-M10 II	Y	stereo / mono	-	-	micro	2.0	Y	-	-
14.		Olympus E-P5	Y	stereo / mono	-	-	micro	2.0	Y	-	-
15.		Olympus E-PL7	Y	stereo / mono	-	-	micro	2.0	Y	-	-
16.		Panasonic G6	Y	stereo / mono	Y	-	mini	2.0	Y	Y	-
17.		Panasonic GX7	Y	stereo / mono	-	-	mini	2.0	Y	Y	-

Both the TL and the E-M10 have been discontinued, but can regularly be found used on ebay. The E-M10 was replaced by the Olympus E-M10 II, while the TL was followed by the Leica TL2. Further information on the features and operation of the TL and E-M10 can be found, respectively, in the Leica TL Manual (free pdf) or the online Olympus E-M10 Manual.

Review summary

So what is the bottom line? Is there a clear favorite between the Leica TL and the Olympus E-M10? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.

Reasons to prefer the Leica TL:

• 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.
• Larger screen: Has a bigger rear LCD (3.7" vs 3.0") for image review and settings control.
• More detailed LCD: Has a higher resolution rear screen (1230k vs 1037k dots).
• Longer lasting: Can take more shots (400 versus 320) on a single battery charge.
• Easier travel charging: Can be conveniently charged via its USB port.
• More prestigious: Has the Leica luxury appeal, which ensures a high resale price.
• More modern: Reflects 2 years and 9 months of technical progress since the E-M10 launch.

Arguments in favor of the Olympus OM-D E-M10:

• Easier framing: Has an electronic viewfinder for image composition and settings control.
• More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
• Faster burst: Shoots at higher frequency (8 vs 5 flaps/sec) to capture the decisive moment.
• Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
• Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
• Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
• More affordable: Was introduced into a lower priced category (59 percent cheaper at launch).
• More heavily discounted: Has been around for much longer (launched in January 2014).

If the count of relative strengths (bullet points above) is taken as a measure, the TL emerges as the winner of the contest (10 : 8 points). However, the relative importance of the various individual camera aspects will vary according to personal preferences and needs, so that you might like to apply corresponding weights to the particular features before making a decision 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 Leica TL and the Olympus E-M10 place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera listing 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 remains incomplete and does no justice, for example, to the way the TL or the E-M10 perform in practice. 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 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.		Leica TL	..	..	..	..	..	4/5	Nov 2016	US$ 1 695	ebay.com
2.		Olympus E-M10	4/5	..	..	80/100	5/5	5/5	Jan 2014	US$ 699	ebay.com
3.		Fujifilm X-A2	4/5	..	..	..	4.5/5	4.5/5	Jan 2015	US$ 399	ebay.com
4.		Fujifilm X-A10	..	..	..	..	4/5	4/5	Dec 2016	US$ 399	ebay.com
5.		Fujifilm X-E2S	4.5/5	..	..	77/100	4.5/5	4.5/5	Jan 2016	US$ 699	ebay.com
6.		Fujifilm X-Pro1	5/5	+ +	..	79/100	4.5/5	4.5/5	Jan 2012	US$ 1 699	ebay.com
7.		Fujifilm X-T10	4.5/5	+ +	..	80/100	5/5	5/5	May 2015	US$ 799	ebay.com
8.		Fujifilm X70	4.5/5	..	..	76/100	4.5/5	4.5/5	Jan 2016	US$ 799	ebay.com
9.		Leica CL	..	..	4.2/5	..	..	4/5	Nov 2017	US$ 2 795	ebay.com
10.		Leica T	3/5	..	..	..	4/5	4/5	Apr 2014	US$ 1 849	ebay.com
11.		Leica TL2	3.5/5	..	3/5	..	4/5	4/5	Jul 2017	US$ 1 949	ebay.com
12.		Leica X2	3/5	..	..	..	3/5	4/5	May 2012	US$ 1 999	ebay.com
13.		Olympus E-M10 II	4.5/5	+ +	..	80/100	5/5	5/5	Aug 2015	US$ 649	ebay.com
14.		Olympus E-P5	5/5	+ +	..	78/100	4.5/5	5/5	May 2013	US$ 999	ebay.com
15.		Olympus E-PL7	4/5	+	..	..	5/5	4/5	Aug 2014	US$ 599	ebay.com
16.		Panasonic G6	4/5	+ +	..	..	5/5	4.5/5	Apr 2013	US$ 599	ebay.com
17.		Panasonic GX7	4/5	+	..	79/100	5/5	5/5	Aug 2013	US$ 999	ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

Care should be taken when interpreting the review scores above, though. The assessments were made in relation to similar cameras of the same technological generation. Hence, a score should always be seen in the context of the camera's market launch date and its price, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. 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 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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