Leica Q3 vs Panasonic G7

The Leica Q3 and the Panasonic Lumix DMC-G7 are two digital cameras that were revealed to the public, respectively, in May 2023 and May 2015. The Q3 is a fixed lens compact, while the G7 is a mirrorless interchangeable lens camera. The cameras are based on a full frame (Q3) and a Four Thirds (G7) sensor. The Leica has a resolution of 60.3 megapixels, whereas the Panasonic provides 15.8 MP.

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

Headline Specifications

Leica Q3		Panasonic G7
Fixed lens compact camera		Mirrorless system camera
28mm f/1.7		Micro Four Thirds lenses
60.3 MP – Full Frame sensor		15.8 MP – Four Thirds sensor
8K/30p Video		4K/30p Video
ISO 50-100,000		ISO 160-25,600
Electronic viewfinder (5760k dots)		Electronic viewfinder (2360k dots)
3.0" LCD – 1840k dots		3.0" LCD – 1040k dots
Tilting touchscreen		Swivel touchscreen
15 shutter flaps per second		7 shutter flaps per second
Weathersealed body		not weather sealed
350 shots per battery charge		350 shots per battery charge
130 x 80 x 93 mm, 743 g		125 x 86 x 77 mm, 410 g

Check Q3 price at
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Check G7 offers at
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Going beyond this snapshot of core features and characteristics, what are the differences between the Leica Q3 and the Panasonic Lumix DMC-G7? 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 Q3 and the Panasonic G7. 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 G7 can be obtained in two different colors (black, silver), while the Q3 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 Panasonic G7 is somewhat larger (3 percent) than the Leica Q3. It is worth mentioning in this context that the Q3 is splash and dust resistant, while the G7 does not feature any corresponding weather-sealing.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the Q3 has a lens built in, whereas the G7 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 G7 and their specifications in the Micro Four Thirds Lens Catalog.

The power pack in the Q3 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 Q3	130 mm	80 mm	93 mm	743 g	350	Y	May 2023	US$ 5 999	amazon.com
2.		Panasonic G7	125 mm	86 mm	77 mm	410 g	350	n	May 2015	US$ 649	ebay.com
3.		Hasselblad X1D II	148 mm	97 mm	70 mm	766 g	..	Y	Jun 2019	US$ 5 749	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 M10	139 mm	80 mm	39 mm	660 g	210	Y	Jan 2017	US$ 6 599	ebay.com
8.		Leica M10-P	139 mm	80 mm	39 mm	660 g	210	Y	Aug 2018	US$ 7 999	ebay.com
9.		Leica M11	139 mm	80 mm	39 mm	640 g	700	Y	Jan 2022	US$ 8 999	amazon.com
10.		Leica Q2	130 mm	80 mm	92 mm	718 g	370	Y	Mar 2019	US$ 4 999	amazon.com
11.		Leica SL3	141 mm	108 mm	85 mm	769 g	320	Y	Mar 2024	US$ 6 999	amazon.com
12.		Panasonic G5	120 mm	83 mm	71 mm	396 g	320	n	Jul 2012	US$ 599	ebay.com
13.		Panasonic G6	122 mm	85 mm	71 mm	390 g	340	n	Apr 2013	US$ 599	ebay.com
14.		Panasonic GH2	124 mm	90 mm	76 mm	442 g	330	n	Sep 2010	US$ 899	ebay.com
15.		Panasonic GM1	99 mm	55 mm	30 mm	204 g	230	n	Oct 2013	US$ 749	ebay.com
16.		Panasonic GM5	99 mm	60 mm	36 mm	211 g	220	n	Sep 2014	US$ 749	ebay.com
17.		Zeiss ZX1	142 mm	93 mm	46 mm	800 g	250	n	Sep 2018	US$ 5 999	ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
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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. 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 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. Furthermore, a large sensor camera will give the photographer more possibilities to use shallow depth-of-field in order to isolate a subject from the background. On the downside, larger sensors tend to be associated with larger, more expensive camera bodies and lenses.

Of the two cameras under consideration, the Leica Q3 features a full frame sensor and the Panasonic G7 a Four Thirds sensor. The sensor area in the G7 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 Q3 has a native 3:2 aspect ratio, while the one in the G7 offers a 4:3 aspect.

With 60.3MP, the Q3 offers a higher resolution than the G7 (15.8MP), but the Q3 nevertheless has marginally larger individual pixels (pixel pitch of 3.79μm versus 3.77μm for the G7) due to its larger sensor. Moreover, the Q3 is a much more recent model (by 8 years) than the G7, 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 Q3 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Leica Q3 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the Q3 for good quality output (200 dots per inch) amounts to 47.6 x 31.6 inches or 121 x 80.4 cm, for very good quality (250 dpi) 38.1 x 25.3 inches or 96.8 x 64.3 cm, and for excellent quality (300 dpi) 31.8 x 21.1 inches or 80.7 x 53.6 cm. The corresponding values for the Panasonic G7 are 23 x 17.2 inches or 58.3 x 43.8 cm for good quality, 18.4 x 13.8 inches or 46.7 x 35 cm for very good quality, and 15.3 x 11.5 inches or 38.9 x 29.2 cm for excellent quality prints.

The Q3 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Leica Q3 has a native sensitivity range from ISO 50 to ISO 100000. The corresponding ISO settings for the Panasonic Lumix DMC-G7 are ISO 160 to ISO 25600 (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 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 Q3	Full Frame	60.3	9528	6328	8K/30p	25.4	14.7	3216	96
2.		Panasonic G7	Four Thirds	15.8	4592	3448	4K/30p	22.8	12.4	904	71
3.		Hasselblad X1D II	Medium Format	51.3	8272	6200	1080/25p	25.7	14.5	3234	99
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 M10	Full Frame	23.8	5952	3992	none	24.4	13.2	2133	86
8.		Leica M10-P	Full Frame	23.8	5952	3992	none	25.1	14.1	2739	93
9.		Leica M11	Full Frame	60.3	9528	6328	none	26.3	14.8	3376	100
10.		Leica Q2	Full Frame	46.7	8368	5584	4K/30p	26.4	13.5	2491	96
11.		Leica SL3	Full Frame	60.3	9520	6336	8K/30p	25.4	14.8	3295	97
12.		Panasonic G5	Four Thirds	15.9	4608	3456	1080/60p	21.4	11.6	618	61
13.		Panasonic G6	Four Thirds	15.9	4608	3456	1080/60p	21.3	11.5	639	61
14.		Panasonic GH2	Four Thirds	15.9	4608	3456	1080/60i	21.2	11.3	655	60
15.		Panasonic GM1	Four Thirds	15.8	4592	3448	1080/60i	22.3	11.7	660	66
16.		Panasonic GM5	Four Thirds	15.8	4592	3448	1080/60p	22.1	11.7	721	66
17.		Zeiss ZX1	Full Frame	37.4	7488	4992	4K/30p	25.2	14.1	2759	94
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. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the Q3 provides a higher video resolution than the G7. It can shoot video footage at 8K/30p, while the Panasonic is limited to 4K/30p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. The two cameras under consideration are similar with respect to both having an electronic viewfinder. However, the one in the Q3 offers a substantially higher resolution than the one in the G7 (5760k vs 2360k dots). The table below summarizes some of the other core capabilities of the Leica Q3 and Panasonic G7 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 Q3	5760	n	3.0 / 1840	tilting	Y	1/2000s	15.0/s	n	Y
2.		Panasonic G7	2360	n	3.0 / 1040	swivel	Y	1/4000s	7.0/s	Y	n
3.		Hasselblad X1D II	3690	n	3.6 / 2360	fixed	Y	1/2000s	2.7/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 M10	optical	n	3.0 / 1037	fixed	n	1/4000s	5.0/s	n	n
8.		Leica M10-P	optical	n	3.0 / 1037	fixed	Y	1/4000s	5.0/s	n	n
9.		Leica M11	optical	n	3.0 / 2333	fixed	Y	1/4000s	4.5/s	n	n
10.		Leica Q2	3680	n	3.0 / 1040	fixed	Y	1/2000s	10.0/s	n	Y
11.		Leica SL3	5760	Y	3.2 / 2333	tilting	Y	1/8000s	5.0/s	n	Y
12.		Panasonic G5	1440	n	3.0 / 920	swivel	Y	1/4000s	6.0/s	Y	n
13.		Panasonic G6	1440	n	3.0 / 1036	swivel	Y	1/4000s	7.0/s	Y	n
14.		Panasonic GH2	1534	n	3.0 / 460	swivel	n	1/4000s	3.0/s	Y	n
15.		Panasonic GM1	none	n	3.0 / 1036	fixed	Y	1/500s	5.0/s	Y	n
16.		Panasonic GM5	1166	n	3.0 / 921	fixed	Y	1/500s	5.8/s	n	n
17.		Zeiss ZX1	6221	n	4.3 / 2765	fixed	Y	1/1000s	3.0/s	n	n
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One difference between the cameras concerns the presence of an on-board flash. The G7 has one, while the Q3 does not. While the built-in flash of the G7 is not very powerful, it can at times be useful as a fill-in light.

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, both cameras under consideration feature an 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 Q3 and the Panasonic G7 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 Q3 and the G7 write their files to SDXC cards. Both cameras support UHS-II cards, which provide for Ultra High Speed data transfer of up to 312 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 Q3 and Panasonic Lumix DMC-G7 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 Q3	Y	stereo / mono	-	-	micro	3.1	Y	-	Y
2.		Panasonic G7	Y	stereo / mono	Y	-	micro	2.0	Y	-	-
3.		Hasselblad X1D II	Y	stereo / mono	Y	Y	-	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 M10	Y	- / -	-	-	-	-	Y	-	-
8.		Leica M10-P	Y	- / -	-	-	-	-	Y	-	-
9.		Leica M11	Y	- / -	-	-	-	3.2	Y	-	Y
10.		Leica Q2	Y	stereo / mono	-	-	-	-	Y	-	Y
11.		Leica SL3	Y	stereo / mono	Y	Y	full	3.1	Y	-	Y
12.		Panasonic G5	Y	stereo / mono	-	-	mini	2.0	-	-	-
13.		Panasonic G6	Y	stereo / mono	Y	-	mini	2.0	Y	Y	-
14.		Panasonic GH2	Y	stereo / mono	Y	-	mini	2.0	-	-	-
15.		Panasonic GM1	-	stereo / mono	-	-	micro	2.0	Y	-	-
16.		Panasonic GM5	Y	stereo / mono	-	-	micro	2.0	Y	-	-
17.		Zeiss ZX1	Y	stereo / mono	-	-	-	3.1	Y	Y	Y

It is notable that the G7 has a microphone port, which can help to improve the quality of audio recordings by attaching an external microphone. The Q3 does not feature such a mic input.

The Q3 is a recent model that features in the current product line-up of Leica. In contrast, the G7 has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the G7 was succeeded by the Panasonic G85. Further information on the features and operation of the Q3 and G7 can be found, respectively, in the Leica Q3 Manual (free pdf) or the online Panasonic G7 Manual.

Review summary

So what is the bottom line? Is there a clear favorite between the Leica Q3 and the Panasonic G7? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.

Reasons to prefer the Leica Q3:

• More detail: Offers more megapixels (60.3 vs 15.8MP) with a 99% 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.
• Better video: Provides higher definition movie capture (8K/30p vs 4K/30p).
• Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
• More detailed viewfinder: Has higher resolution electronic viewfinder (5760k vs 2360k dots).
• Larger viewfinder image: Features a viewfinder with a higher magnification (0.79x vs 0.70x).
• More detailed LCD: Has a higher resolution rear screen (1840k vs 1040k dots).
• Faster burst: Shoots at higher frequency (15 vs 7 flaps/sec) to capture the decisive moment.
• Ready to shoot: Has a lens built-in, whereas the G7 requires a separate lens.
• Easier travel charging: Can be conveniently charged via its USB port.
• Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
• Sharper images: Has hand-shake reducing image stabilization built-in.
• Faster data transfer: Supports a more advanced USB protocol (3.1 vs 2.0).
• Easier wireless transfer: Supports Bluetooth for image sharing without cables.
• More prestigious: Has the Leica luxury appeal, which ensures a high resale price.
• More modern: Reflects 8 years of technical progress since the G7 launch.

Advantages of the Panasonic Lumix DMC-G7:

• Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
• Better sound: Can connect to an external microphone for higher quality sound recording.
• 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 (1/4000s vs 1/2000s) to freeze action.
• More flexible: Takes interchangeable lenses and can thus be used with specialty optics.
• Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
• More heavily discounted: Has been around for much longer (launched in May 2015).

If the count of relative strengths (bullet points above) is taken as a measure, the Q3 is the clear winner of the match-up (20 : 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 Q3 and the Panasonic G7 place the cameras among the top in their class? Find out in the latest Best Prime Lens Compact Camera and Best Mirrorless Interchangeable Lens 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 Q3 and the G7 in practical situations. 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 Q3	5/5	..	4.5/5	..	..	4.5/5	May 2023	US$ 5 999	amazon.com
2.		Panasonic G7	4/5	+ +	3.5/5	80/100	5/5	4.5/5	May 2015	US$ 649	ebay.com
3.		Hasselblad X1D II	..	..	4/5	..	4/5	4/5	Jun 2019	US$ 5 749	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 M10	4.5/5	..	..	..	4/5	4.5/5	Jan 2017	US$ 6 599	ebay.com
8.		Leica M10-P	..	..	3/5	..	..	4/5	Aug 2018	US$ 7 999	ebay.com
9.		Leica M11	4.5/5	..	4.5/5	..	4.5/5	4.5/5	Jan 2022	US$ 8 999	amazon.com
10.		Leica Q2	..	..	4.5/5	84/100	4.5/5	4/5	Mar 2019	US$ 4 999	amazon.com
11.		Leica SL3	..	..	4.5/5	..	..	4.5/5	Mar 2024	US$ 6 999	amazon.com
12.		Panasonic G5	3/5	+ +	..	..	4.5/5	4.5/5	Jul 2012	US$ 599	ebay.com
13.		Panasonic G6	4/5	+ +	..	..	5/5	4.5/5	Apr 2013	US$ 599	ebay.com
14.		Panasonic GH2	5/5	+ +	..	79/100	4.5/5	5/5	Sep 2010	US$ 899	ebay.com
15.		Panasonic GM1	3/5	+	..	78/100	5/5	4.5/5	Oct 2013	US$ 749	ebay.com
16.		Panasonic GM5	3.5/5	+	..	77/100	5/5	4.5/5	Sep 2014	US$ 749	ebay.com
17.		Zeiss ZX1	3/5	..	..	83/100	4/5	4/5	Sep 2018	US$ 5 999	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 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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