Leica M10-R vs Panasonic GX8

The Leica M10-R and the Panasonic Lumix DMC-GX8 are two enthusiast cameras that were officially introduced, respectively, in July 2020 and July 2015. The M10-R is a rangefinder-focusing mirrorless, while the GX8 is a mirrorless interchangeable lens camera. The cameras are based on a full frame (M10-R) and a Four Thirds (GX8) sensor. The Leica has a resolution of 40.9 megapixels, whereas the Panasonic provides 20.2 MP.

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

Headline Specifications

Leica M10-R		Panasonic GX8
Rangefinder camera		Mirrorless system camera
Leica M mount lenses		Micro Four Thirds lenses
40.9 MP – Full Frame sensor		20.2 MP – Four Thirds sensor
no Video		4K/30p Video
ISO 100-50,000		ISO 200-25,600
Optical viewfinder		Electronic viewfinder (2360k dots)
3.0" LCD – 1037k dots		3.0" LCD – 1040k dots
Fixed touchscreen		Swivel touchscreen
4.5 shutter flaps per second		10 shutter flaps per second
no shake reduction		In-body stabilization
Weathersealed body		Weathersealed body
210 shots per battery charge		330 shots per battery charge
139 x 80 x 39 mm, 660 g		133 x 78 x 63 mm, 487 g

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Going beyond this snapshot of core features and characteristics, what are the differences between the Leica M10-R and the Panasonic Lumix DMC-GX8? 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 Leica M10-R and the Panasonic GX8 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.

Both cameras are available in two different colors (black, silver).

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Panasonic GX8 is notably smaller (7 percent) than the Leica M10-R. Moreover, the GX8 is markedly lighter (26 percent) than the M10-R. In this context, it is worth noting that both cameras are splash and dust-proof and can, hence, be used in inclement weather conditions or harsh environments.

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 Leica M Lens Catalog (M10-R) and the Micro Four Thirds Lens Catalog (GX8).

Concerning battery life, the M10-R gets 210 shots out of its Leica BP-SCL5 battery, while the GX8 can take 330 images on a single charge of its Panasonic DMW-BLC12 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.		Leica M10-R	139 mm	80 mm	39 mm	660 g	210	Y	Jul 2020	US$ 8 299	ebay.com
2.		Panasonic GX8	133 mm	78 mm	63 mm	487 g	330	Y	Jul 2015	US$ 1 199	ebay.com
3.		Hasselblad X1D	150 mm	98 mm	71 mm	725 g	..	Y	Jun 2016	US$ 8 995	ebay.com
4.		Leica M Typ 240	139 mm	80 mm	42 mm	680 g	500	Y	Sep 2012	US$ 6 949	ebay.com
5.		Leica M-E Typ 240	139 mm	80 mm	42 mm	680 g	500	Y	Jun 2019	US$ 3 999	ebay.com
6.		Leica M Typ 262	139 mm	80 mm	42 mm	680 g	400	Y	Nov 2015	US$ 5 195	ebay.com
7.		Leica M9	139 mm	80 mm	37 mm	585 g	550	n	Sep 2009	US$ 7 999	ebay.com
8.		Leica M10	139 mm	80 mm	39 mm	660 g	210	Y	Jan 2017	US$ 6 599	ebay.com
9.		Leica M10-P	139 mm	80 mm	39 mm	660 g	210	Y	Aug 2018	US$ 7 999	ebay.com
10.		Leica M11	139 mm	80 mm	39 mm	640 g	700	Y	Jan 2022	US$ 8 999	amazon.com
11.		Leica Q2	130 mm	80 mm	92 mm	718 g	370	Y	Mar 2019	US$ 4 999	amazon.com
12.		Leica X-U Typ 113	140 mm	79 mm	88 mm	635 g	450	Y	Jan 2016	US$ 2 949	ebay.com
13.		Olympus E-M1 II	134 mm	91 mm	67 mm	574 g	440	Y	Sep 2016	US$ 1 999	ebay.com
14.		Olympus E-M5 II	124 mm	85 mm	45 mm	469 g	310	Y	Feb 2015	US$ 1 099	ebay.com
15.		Olympus PEN-F	125 mm	72 mm	37 mm	427 g	330	n	Jan 2016	US$ 1 199	ebay.com
16.		Panasonic GX7	123 mm	71 mm	55 mm	402 g	350	n	Aug 2013	US$ 999	ebay.com
17.		Sony A6500	120 mm	67 mm	53 mm	453 g	350	Y	Oct 2016	US$ 1 399	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 GX8 was launched at a markedly lower price (by 86 percent) than the M10-R, 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 sensor inside a digital camera is one of the key determinants 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 M10-R features a full frame sensor and the Panasonic GX8 a Four Thirds sensor. The sensor area in the GX8 is 74 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.0 and 2.0. The sensor in the M10-R has a native 3:2 aspect ratio, while the one in the GX8 offers a 4:3 aspect.

With 40.9MP, the M10-R offers a higher resolution than the GX8 (20.2MP), but the M10-R nevertheless has larger individual pixels (pixel pitch of 4.57μm versus 3.34μm for the GX8) due to its larger sensor. Moreover, the M10-R is a much more recent model (by 5 years) than the GX8, 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 the M10-R has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Leica M10-R implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the M10-R for good quality output (200 dots per inch) amounts to 39.3 x 26 inches or 99.9 x 66 cm, for very good quality (250 dpi) 31.5 x 20.8 inches or 79.9 x 52.8 cm, and for excellent quality (300 dpi) 26.2 x 17.3 inches or 66.6 x 44 cm. The corresponding values for the Panasonic GX8 are 25.9 x 19.4 inches or 65.8 x 49.4 cm for good quality, 20.7 x 15.6 inches or 52.7 x 39.5 cm for very good quality, and 17.3 x 13 inches or 43.9 x 32.9 cm for excellent quality prints.

The Leica M10-R has a native sensitivity range from ISO 100 to ISO 50000. The corresponding ISO settings for the Panasonic Lumix DMC-GX8 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.

For many cameras, data on sensor performance has been reported by DXO Mark. 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 following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.

Sensor Characteristics

		Camera Model	Sensor Class	Resolution (MP)	Horiz. Pixels	Vert. Pixels	Video Format	DXO Portrait	DXO Landscape	DXO Sports	DXO Overall
1.		Leica M10-R	Full Frame	40.9	7864	5200	none	25.3	14.3	2924	95
2.		Panasonic GX8	Four Thirds	20.2	5184	3888	4K/30p	23.5	12.6	806	75
3.		Hasselblad X1D	Medium Format	51.3	8272	6200	1080/25p	26.2	14.8	4489	102
4.		Leica M Typ 240	Full Frame	23.7	5952	3976	1080/25p	24.0	13.3	1860	84
5.		Leica M-E Typ 240	Full Frame	23.7	5952	3976	1080/25p	25.2	14.2	2821	94
6.		Leica M Typ 262	Full Frame	23.7	5952	3976	none	24.8	13.7	2478	90
7.		Leica M9	Full Frame	18.1	5212	3472	none	22.5	11.7	884	69
8.		Leica M10	Full Frame	23.8	5952	3992	none	24.4	13.2	2133	86
9.		Leica M10-P	Full Frame	23.8	5952	3992	none	25.1	14.1	2739	93
10.		Leica M11	Full Frame	60.3	9528	6328	none	26.3	14.8	3376	100
11.		Leica Q2	Full Frame	46.7	8368	5584	4K/30p	26.4	13.5	2491	96
12.		Leica X-U Typ 113	APS-C	16.1	4928	3264	1080/30p	23.8	13.0	1614	80
13.		Olympus E-M1 II	Four Thirds	20.2	5184	3888	4K/30p	23.7	12.8	1312	80
14.		Olympus E-M5 II	Four Thirds	15.9	4608	3456	1080/60p	23.0	12.5	842	73
15.		Olympus PEN-F	Four Thirds	20.2	5184	3888	1080/60p	23.1	12.4	894	74
16.		Panasonic GX7	Four Thirds	15.8	4592	3448	1080/60p	22.6	12.2	718	70
17.		Sony A6500	APS-C	24.0	6000	4000	4K/30p	24.5	13.7	1405	85
Note: DXO values in italics represent estimates based on sensor size and age.

Many modern cameras are not only capable of taking still images, but can also record movies. The GX8 indeed provides for movie recording, while the M10-R does not. The highest resolution format that the GX8 can use is 4K/30p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the GX8 has an electronic viewfinder (2360k dots), while the M10-R has an optical one. Both systems have their advantages, with the electronic viewfinder making it possible to project supplementary shooting information into the framing view, whereas the optical viewfinder offers lag-free viewing and a very clear framing image. The viewfinders of both cameras offer the same field of view (100%), but the viewfinder of the GX8 has a higher magnification than the one of the M10-R (0.77x vs 0.73x), 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 Leica M10-R and Panasonic GX8 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 M10-R	optical	n	3.0 / 1037	fixed	Y	1/4000s	4.5/s	n	n
2.		Panasonic GX8	2360	n	3.0 / 1040	swivel	Y	1/8000s	10.0/s	n	Y
3.		Hasselblad X1D	2360	n	3.0 / 920	fixed	Y	1/2000s	2.3/s	n	n
4.		Leica M Typ 240	optical	n	3.0 / 920	fixed	n	1/4000s	3.0/s	n	n
5.		Leica M-E Typ 240	optical	n	3.0 / 920	fixed	n	1/4000s	3.0/s	n	n
6.		Leica M Typ 262	optical	n	3.0 / 921	fixed	n	1/4000s	3.0/s	n	n
7.		Leica M9	optical	n	2.5 / 230	fixed	n	1/4000s	2.0/s	n	n
8.		Leica M10	optical	n	3.0 / 1037	fixed	n	1/4000s	5.0/s	n	n
9.		Leica M10-P	optical	n	3.0 / 1037	fixed	Y	1/4000s	5.0/s	n	n
10.		Leica M11	optical	n	3.0 / 2333	fixed	Y	1/4000s	4.5/s	n	n
11.		Leica Q2	3680	n	3.0 / 1040	fixed	Y	1/2000s	10.0/s	n	Y
12.		Leica X-U Typ 113	optional	n	3.0 / 920	fixed	n	1/2000s	5.0/s	Y	n
13.		Olympus E-M1 II	2360	n	3.0 / 1037	swivel	Y	1/8000s	18.0/s	n	Y
14.		Olympus E-M5 II	2360	n	3.0 / 1037	swivel	Y	1/8000s	10.0/s	n	Y
15.		Olympus PEN-F	2360	n	3.0 / 1037	swivel	Y	1/8000s	10.0/s	n	Y
16.		Panasonic GX7	2760	n	3.0 / 1040	tilting	Y	1/8000s	5.0/s	Y	Y
17.		Sony A6500	2359	n	3.0 / 922	tilting	Y	1/4000s	11.0/s	Y	Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

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 GX8 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 Leica M10-R and the Panasonic GX8 both have 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 M10-R and the GX8 write their files to SDXC cards. Both cameras can use UHS-I cards, which provide for Ultra High Speed data transfer of up to 104 MB/s.

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 M10-R and Panasonic Lumix DMC-GX8 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 M10-R	Y	- / -	-	-	-	-	Y	-	-
2.		Panasonic GX8	Y	stereo / mono	Y	-	micro	2.0	Y	Y	-
3.		Hasselblad X1D	Y	stereo / mono	Y	Y	mini	3.0	Y	-	-
4.		Leica M Typ 240	Y	stereo / mono	-	-	-	2.0	-	-	-
5.		Leica M-E Typ 240	Y	mono / -	-	-	-	2.0	-	-	-
6.		Leica M Typ 262	Y	- / -	-	-	-	2.0	-	-	-
7.		Leica M9	Y	- / -	-	-	-	2.0	-	-	-
8.		Leica M10	Y	- / -	-	-	-	-	Y	-	-
9.		Leica M10-P	Y	- / -	-	-	-	-	Y	-	-
10.		Leica M11	Y	- / -	-	-	-	3.2	Y	-	Y
11.		Leica Q2	Y	stereo / mono	-	-	-	-	Y	-	Y
12.		Leica X-U Typ 113	Y	stereo / mono	-	-	-	2.0	-	-	-
13.		Olympus E-M1 II	Y	stereo / mono	Y	Y	micro	3.0	Y	-	-
14.		Olympus E-M5 II	Y	stereo / mono	Y	-	micro	2.0	Y	-	-
15.		Olympus PEN-F	Y	stereo / mono	-	-	micro	2.0	Y	-	-
16.		Panasonic GX7	Y	stereo / mono	-	-	mini	2.0	Y	Y	-
17.		Sony A6500	Y	stereo / mono	Y	-	micro	2.0	Y	Y	-

Both the M10-R and the GX8 have been discontinued, but can regularly be found used on ebay. The GX8 was replaced by the Panasonic GX9, while the M10-R does not have a direct successor. Further information on the features and operation of the M10-R and GX8 can be found, respectively, in the Leica M10-R Manual (free pdf) or the online Panasonic GX8 Manual.

Review summary

So what conclusions can be drawn? Is the Leica M10-R better than the Panasonic GX8 or vice versa? The listing below highlights the relative strengths of the two models.

Advantages of the Leica M10-R:

• More detail: Offers more megapixels (40.9 vs 20.2MP) with a 45% higher linear resolution.
• Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
• 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.
• Brighter framing: Features an optical viewfinder for clear, lag-free composition.
• More prestigious: Has the Leica luxury appeal, which ensures a high resale price.
• More modern: Reflects 5 years of technical progress since the GX8 launch.

Reasons to prefer the Panasonic Lumix DMC-GX8:

• Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
• Broader imaging potential: Can capture not only stills but also 4K/30p video.
• More framing info: Has an electronic viewfinder that displays shooting data.
• Larger viewfinder image: Features a viewfinder with a higher magnification (0.77x vs 0.73x).
• 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 shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
• Faster burst: Shoots at higher frequency (10 vs 4.5 flaps/sec) to capture the decisive moment.
• Less disturbing: Has an electronic shutter option for completely silent shooting.
• Less heavy: Has a lower weight (by 173g or 26 percent) and is thus easier to take along.
• Longer lasting: Gets more shots (330 versus 210) out of a single battery charge.
• Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
• Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
• More affordable: Was introduced into a lower priced category (86 percent cheaper at launch).
• More heavily discounted: Has been around for much longer (launched in July 2015).

If the number of relative strengths (bullet points above) is taken as a guide, the GX8 is the clear winner of the contest (15 : 9 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 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.

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 M10-R or the GX8 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 M10-R	4.5/5	..	4/5	..	..	4/5	Jul 2020	US$ 8 299	ebay.com
2.		Panasonic GX8	5/5	+	..	82/100	4.5/5	4.5/5	Jul 2015	US$ 1 199	ebay.com
3.		Hasselblad X1D	..	o	..	81/100	..	4/5	Jun 2016	US$ 8 995	ebay.com
4.		Leica M Typ 240	4/5	..	..	..	4/5	..	Sep 2012	US$ 6 949	ebay.com
5.		Leica M-E Typ 240	..	..	..	..	..	..	Jun 2019	US$ 3 999	ebay.com
6.		Leica M Typ 262	..	..	..	..	..	..	Nov 2015	US$ 5 195	ebay.com
7.		Leica M9	..	..	..	..	4.5/5	..	Sep 2009	US$ 7 999	ebay.com
8.		Leica M10	4.5/5	..	..	..	4/5	4.5/5	Jan 2017	US$ 6 599	ebay.com
9.		Leica M10-P	..	..	3/5	..	..	4/5	Aug 2018	US$ 7 999	ebay.com
10.		Leica M11	4.5/5	..	4.5/5	..	4.5/5	4.5/5	Jan 2022	US$ 8 999	amazon.com
11.		Leica Q2	..	..	4.5/5	84/100	4.5/5	4/5	Mar 2019	US$ 4 999	amazon.com
12.		Leica X-U Typ 113	3.5/5	..	..	..	..	3.5/5	Jan 2016	US$ 2 949	ebay.com
13.		Olympus E-M1 II	5/5	+ +	5/5	85/100	4.5/5	4.5/5	Sep 2016	US$ 1 999	ebay.com
14.		Olympus E-M5 II	5/5	+ +	4.5/5	81/100	5/5	5/5	Feb 2015	US$ 1 099	ebay.com
15.		Olympus PEN-F	..	..	4/5	82/100	4.5/5	5/5	Jan 2016	US$ 1 199	ebay.com
16.		Panasonic GX7	4/5	+	..	79/100	5/5	5/5	Aug 2013	US$ 999	ebay.com
17.		Sony A6500	5/5	+ +	3.5/5	85/100	4.5/5	4.5/5	Oct 2016	US$ 1 399	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. 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

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