Canon R7 vs Leica Q3

The Canon EOS R7 and the Leica Q3 are two enthusiast cameras that were announced, respectively, in May 2022 and May 2023. The R7 is a mirrorless interchangeable lens camera, while the Q3 is a fixed lens compact. The cameras are based on an APS-C (R7) and a full frame (Q3) sensor. The Canon has a resolution of 32.3 megapixels, whereas the Leica provides 60.3 MP.

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

Headline Specifications

Canon R7		Leica Q3
Mirrorless system camera		Fixed lens compact camera
		28mm f/1.7
32.3 MP – APS-C sensor		60.3 MP – Full Frame sensor
4k/60p Video		8K/30p Video
ISO 100-32,000 (100 - 51,200)		ISO 50-100,000
Electronic viewfinder (2360k dots)		Electronic viewfinder (5760k dots)
3.0" LCD – 1620k dots		3.0" LCD – 1840k dots
Swivel touchscreen		Tilting touchscreen
15 shutter flaps per second		15 shutter flaps per second
In-body stabilization		Lens-based stabilization
Weathersealed body		Weathersealed body
660 shots per battery charge		350 shots per battery charge
132 x 90 x 92 mm, 612 g		130 x 80 x 93 mm, 743 g

Check R7 price at
amazon.com
Check Q3 price at
amazon.com

Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS R7 and the Leica Q3? 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 Canon R7 and the Leica Q3. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All width, height and depth dimensions are rounded to the nearest millimeter.

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Leica Q3 is notably smaller (12 percent) than the Canon R7. 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 and possibly misleading, as the Q3 has a lens built in, whereas the R7 is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup.

Concerning battery life, the R7 gets 660 shots out of its Canon LP-E6NH battery, while the Q3 can take 350 images on a single charge of its Leica BP-SCL6 power pack. The battery packs of both cameras can be charged via USB, which can be very convenient when travelling.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. 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.		Canon R7	132 mm	90 mm	92 mm	612 g	660	Y	May 2022	US$ 1 499	amazon.com
2.		Leica Q3	130 mm	80 mm	93 mm	743 g	350	Y	May 2023	US$ 5 999	amazon.com
3.		Canon 90D	141 mm	105 mm	77 mm	701 g	1300	Y	Aug 2019	US$ 1 199	amazon.com
4.		Canon R5	138 mm	98 mm	88 mm	738 g	320	Y	Jul 2020	US$ 3 899	amazon.com
5.		Canon R6	138 mm	98 mm	88 mm	680 g	360	Y	Jul 2020	US$ 2 499	amazon.com
6.		Canon R6 Mark II	138 mm	98 mm	88 mm	670 g	450	Y	Nov 2022	US$ 2 499	amazon.com
7.		Fujifilm X-T4	135 mm	93 mm	64 mm	607 g	500	Y	Feb 2020	US$ 1 699	ebay.com
8.		Fujifilm X-T5	130 mm	91 mm	64 mm	557 g	580	Y	Nov 2022	US$ 1 699	amazon.com
9.		Leica M Typ 240	139 mm	80 mm	42 mm	680 g	500	Y	Sep 2012	US$ 6 949	ebay.com
10.		Leica M10	139 mm	80 mm	39 mm	660 g	210	Y	Jan 2017	US$ 6 599	ebay.com
11.		Leica M11	139 mm	80 mm	39 mm	640 g	700	Y	Jan 2022	US$ 8 999	amazon.com
12.		Leica Q2	130 mm	80 mm	92 mm	718 g	370	Y	Mar 2019	US$ 4 999	amazon.com
13.		Leica SL3	141 mm	108 mm	85 mm	769 g	320	Y	Mar 2024	US$ 6 999	amazon.com
14.		Nikon Z5	134 mm	101 mm	67 mm	675 g	470	Y	Jul 2020	US$ 1 399	amazon.com
15.		Panasonic GH5 II	139 mm	98 mm	87 mm	727 g	400	Y	May 2021	US$ 1 699	amazon.com
16.		Sony A7 IV	131 mm	96 mm	80 mm	659 g	580	Y	Oct 2021	US$ 2 499	amazon.com
17.		Sony A7C II	124 mm	71 mm	63 mm	514 g	540	Y	Aug 2023	US$ 2 199	amazon.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 listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. 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. 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 Canon R7 features an APS-C sensor and the Leica Q3 a full frame sensor. The sensor area in the Q3 is 162 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.6 and 1.0. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

With 60.3MP, the Q3 offers a higher resolution than the R7 (32.3MP), but the Q3 nevertheless has larger individual pixels (pixel pitch of 3.79μm versus 3.20μm for the R7) due to its larger sensor. Moreover, the Q3 is a somewhat more recent model (by 1 year) than the R7, and its sensor might have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixel-units. 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 Canon R7 are 34.8 x 23.2 inches or 88.4 x 58.9 cm for good quality, 27.8 x 18.6 inches or 70.7 x 47.1 cm for very good quality, and 23.2 x 15.5 inches or 58.9 x 39.3 cm for excellent quality prints.

The Canon EOS R7 has a native sensitivity range from ISO 100 to ISO 32000, which can be extended to ISO 100-51200. The corresponding ISO settings for the Leica Q3 are ISO 50 to ISO 100000 (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.

For many cameras, data on sensor performance has been reported by DXO Mark. 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 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.		Canon R7	APS-C	32.3	6960	4640	4k/60p	24.1	13.8	2092	84
2.		Leica Q3	Full Frame	60.3	9528	6328	8K/30p	25.4	14.7	3216	96
3.		Canon 90D	APS-C	32.3	6960	4640	4K/30p	24.0	13.5	1848	83
4.		Canon R5	Full Frame	44.8	8192	5464	8K/30p	25.3	14.6	3042	95
5.		Canon R6	Full Frame	20.0	5472	3648	4k/60p	24.2	14.3	3394	90
6.		Canon R6 Mark II	Full Frame	24.0	6000	4000	4k/60p	25.4	14.6	3154	96
7.		Fujifilm X-T4	APS-C	26.0	6240	4160	4K/60p	24.1	13.6	1995	84
8.		Fujifilm X-T5	APS-C	39.8	7728	5152	6.2k/30p	24.3	13.9	2264	86
9.		Leica M Typ 240	Full Frame	23.7	5952	3976	1080/25p	24.0	13.3	1860	84
10.		Leica M10	Full Frame	23.8	5952	3992	none	24.4	13.2	2133	86
11.		Leica M11	Full Frame	60.3	9528	6328	none	26.3	14.8	3376	100
12.		Leica Q2	Full Frame	46.7	8368	5584	4K/30p	26.4	13.5	2491	96
13.		Leica SL3	Full Frame	60.3	9520	6336	8K/30p	25.4	14.8	3295	97
14.		Nikon Z5	Full Frame	24.2	6016	4016	4K/30p	25.3	14.3	2929	95
15.		Panasonic GH5 II	Four Thirds	20.2	5184	3888	4K/60p	23.7	13.1	1136	79
16.		Sony A7 IV	Full Frame	32.7	7008	4672	4K/60p	25.4	14.7	3379	97
17.		Sony A7C II	Full Frame	32.7	7008	4672	4K/60p	25.4	14.7	3237	96
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 also of capturing video footage. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the Q3 provides a better video resolution than the R7. It can shoot movie footage at 8K/30p, while the Canon is limited to 4k/60p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. The two cameras under review 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 R7 (5760k vs 2360k dots). The adjacent table lists some of the other core features of the Canon R7 and Leica Q3 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.		Canon R7	2360	n	3.0 / 1620	swivel	Y	1/8000s	15.0/s	n	Y
2.		Leica Q3	5760	n	3.0 / 1840	tilting	Y	1/2000s	15.0/s	n	Y
3.		Canon 90D	optical	Y	3.0 / 1040	swivel	Y	1/8000s	11.0/s	Y	n
4.		Canon R5	5760	Y	3.2 / 2100	swivel	Y	1/8000s	12.0/s	n	Y
5.		Canon R6	3690	n	3.0 / 1620	swivel	Y	1/8000s	12.0/s	n	Y
6.		Canon R6 Mark II	3690	n	3.0 / 1620	swivel	Y	1/8000s	12.0/s	n	Y
7.		Fujifilm X-T4	3690	n	3.0 / 1620	swivel	Y	1/8000s	15.0/s	n	Y
8.		Fujifilm X-T5	3690	n	3.0 / 1840	full-flex	Y	1/8000s	15.0/s	n	Y
9.		Leica M Typ 240	optical	n	3.0 / 920	fixed	n	1/4000s	3.0/s	n	n
10.		Leica M10	optical	n	3.0 / 1037	fixed	n	1/4000s	5.0/s	n	n
11.		Leica M11	optical	n	3.0 / 2333	fixed	Y	1/4000s	4.5/s	n	n
12.		Leica Q2	3680	n	3.0 / 1040	fixed	Y	1/2000s	10.0/s	n	Y
13.		Leica SL3	5760	Y	3.2 / 2333	tilting	Y	1/8000s	5.0/s	n	Y
14.		Nikon Z5	3690	n	3.2 / 1040	tilting	Y	1/8000s	4.5/s	n	Y
15.		Panasonic GH5 II	3680	n	3.0 / 1840	swivel	Y	1/8000s	12.0/s	n	Y
16.		Sony A7 IV	3686	n	3.0 / 1037	swivel	Y	1/8000s	10.0/s	n	Y
17.		Sony A7C II	2360	n	3.0 / 1037	swivel	Y	1/4000s	10.0/s	n	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, 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 Canon R7 and the Leica Q3 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 R7 and the Q3 write their files to SDXC cards. The R7 features dual card slots, which can be very useful in case a memory card fails. In contrast, the Q3 only has one slot. 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 Canon EOS R7 and Leica Q3 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.		Canon R7	Y	stereo / mono	Y	Y	micro	3.2	Y	-	Y
2.		Leica Q3	Y	stereo / mono	-	-	micro	3.1	Y	-	Y
3.		Canon 90D	Y	stereo / mono	Y	Y	mini	2.0	Y	-	Y
4.		Canon R5	Y	mono / mono	Y	Y	micro	3.2	Y	-	Y
5.		Canon R6	Y	mono / mono	Y	Y	micro	3.2	Y	-	Y
6.		Canon R6 Mark II	Y	stereo / mono	Y	Y	micro	3.2	Y	-	Y
7.		Fujifilm X-T4	Y	stereo / mono	Y	-	micro	3.1	Y	-	Y
8.		Fujifilm X-T5	Y	stereo / mono	Y	-	micro	3.2	Y	-	Y
9.		Leica M Typ 240	Y	stereo / mono	-	-	-	2.0	-	-	-
10.		Leica M10	Y	- / -	-	-	-	-	Y	-	-
11.		Leica M11	Y	- / -	-	-	-	3.2	Y	-	Y
12.		Leica Q2	Y	stereo / mono	-	-	-	-	Y	-	Y
13.		Leica SL3	Y	stereo / mono	Y	Y	full	3.1	Y	-	Y
14.		Nikon Z5	Y	stereo / mono	Y	Y	micro	3.2	Y	-	Y
15.		Panasonic GH5 II	Y	stereo / mono	Y	Y	full	3.2	Y	-	Y
16.		Sony A7 IV	Y	stereo / mono	Y	Y	full	3.2	Y	-	Y
17.		Sony A7C II	Y	stereo / mono	Y	Y	micro	3.2	Y	-	Y

It is notable that the R7 has a microphone port, which is missing on the Q3. Such an external microphone input can help to substantially improve the quality of audio recordings when a good external microphone is used.

Both the R7 and the Q3 are recent models that are part of the current product line-up. The Q3 replaced the earlier Leica Q2, while the R7 does not have a direct predecessor. Further information on the features and operation of the R7 and Q3 can be found, respectively, in the Canon R7 Manual (free pdf) or the online Leica Q3 Manual.

Review summary

So how do things add up? Is there a clear favorite between the Canon R7 and the Leica Q3? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.

Advantages of the Canon EOS R7:

• 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.
• Better sound control: Has a headphone port that enables audio monitoring while 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 (1/8000s vs 1/2000s) to freeze action.
• More flexible: Accepts interchangeable lenses, so that lens characteristics can be altered.
• Longer lasting: Can take more shots (660 versus 350) on a single battery charge.
• Faster data transfer: Supports a more advanced USB protocol (3.2 vs 3.1).
• 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 2022).

Arguments in favor of the Leica Q3:

• More detail: Has more megapixels (60.3 vs 32.3MP), which boosts linear resolution by 37%.
• Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
• Better image quality: Is equipped with a larger and more technologically advanced 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/60p).
• 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 0.72x).
• More detailed LCD: Has a higher resolution rear screen (1840k vs 1620k dots).
• Ready to shoot: Has an integrated lens, whereas the R7 necessitates an extra lens.
• More compact: Is smaller (130x80mm vs 132x90mm) and will fit more readily into a bag.
• More prestigious: Has the Leica luxury appeal, which ensures a high resale value.
• More modern: Was introduced somewhat (1 year) more recently.

If the number of relative strengths (bullet points above) is taken as a guide, the Q3 emerges as the winner of the match-up (14 : 11 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 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 Canon R7 and the Leica Q3 place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera and Best Prime Lens Compact 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 R7 and the Q3 in practical situations. 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.		Canon R7	4.5/5	+	5/5	87/100	4.5/5	4.5/5	May 2022	US$ 1 499	amazon.com
2.		Leica Q3	5/5	..	4.5/5	..	..	4.5/5	May 2023	US$ 5 999	amazon.com
3.		Canon 90D	4/5	+	4.5/5	85/100	4.5/5	4.5/5	Aug 2019	US$ 1 199	amazon.com
4.		Canon R5	4.5/5	+	4/5	91/100	4.5/5	4.5/5	Jul 2020	US$ 3 899	amazon.com
5.		Canon R6	5/5	+ +	4/5	90/100	4.5/5	5/5	Jul 2020	US$ 2 499	amazon.com
6.		Canon R6 Mark II	5/5	+ +	4.5/5	91/100	4.5/5	5/5	Nov 2022	US$ 2 499	amazon.com
7.		Fujifilm X-T4	5/5	+ +	5/5	88/100	5/5	5/5	Feb 2020	US$ 1 699	ebay.com
8.		Fujifilm X-T5	5/5	+ +	4.5/5	90/100	4.5/5	..	Nov 2022	US$ 1 699	amazon.com
9.		Leica M Typ 240	4/5	..	..	..	4/5	..	Sep 2012	US$ 6 949	ebay.com
10.		Leica M10	4.5/5	..	..	..	4/5	4.5/5	Jan 2017	US$ 6 599	ebay.com
11.		Leica M11	4.5/5	..	4.5/5	..	4.5/5	4.5/5	Jan 2022	US$ 8 999	amazon.com
12.		Leica Q2	..	..	4.5/5	84/100	4.5/5	4/5	Mar 2019	US$ 4 999	amazon.com
13.		Leica SL3	..	..	4.5/5	..	..	4.5/5	Mar 2024	US$ 6 999	amazon.com
14.		Nikon Z5	4/5	..	4/5	89/100	4.5/5	4/5	Jul 2020	US$ 1 399	amazon.com
15.		Panasonic GH5 II	4.5/5	..	4.5/5	85/100	4.5/5	5/5	May 2021	US$ 1 699	amazon.com
16.		Sony A7 IV	5/5	+ +	4.5/5	89/100	4.5/5	4.5/5	Oct 2021	US$ 2 499	amazon.com
17.		Sony A7C II	4/5	..	4/5	87/100	4.5/5	4.5/5	Aug 2023	US$ 2 199	amazon.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The above review scores should be interpreted with care, though. The ratings are only valid when referring to cameras in the same category and of the same age. 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.

Check R7 price at
amazon.com
Check Q3 price at
amazon.com

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 a corresponding selection in the search boxes below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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