Leica SL3-S vs Sony A7C R

The Leica SL3-S and the Sony Alpha A7C R are two enthusiast cameras that were revealed to the public, respectively, in January 2025 and August 2023. Both the Leica SL3-S and the A7C R are mirrorless interchangeable lens cameras that are equipped with a full frame sensor. The Leica has a resolution of 24 megapixels, whereas the Sony provides 60.2 MP.

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

Headline Specifications

Leica SL3-S		Sony A7C R
Mirrorless system camera		Mirrorless system camera
Leica L mount lenses		Sony E mount lenses
24 MP – Full Frame sensor		60.2 MP – Full Frame sensor
6K/30p Video		4K/60p Video
ISO 100-50,000 (50 - 100,000)		ISO 100-32,000 (50 - 102,400)
Electronic viewfinder (5760k dots)		Electronic viewfinder (2360k dots)
3.2" LCD – 2333k dots		3.0" LCD – 1037k dots
Tilting touchscreen		Swivel touchscreen
30 shutter flaps per second		8 shutter flaps per second
In-body stabilization		In-body stabilization
Weathersealed body		Weathersealed body
315 shots per battery charge		520 shots per battery charge
141 x 108 x 85 mm, 852 g		124 x 71 x 63 mm, 520 g

Check Leica SL3-S price at
amazon.com
Check A7C R price at
amazon.com

Going beyond this snapshot of core features and characteristics, what are the differences between the Leica SL3-S and the Sony Alpha A7C R? 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 SL3-S and the Sony A7C R 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 width, height and depth measures are rounded to the nearest millimeter.

The A7C R can be obtained in two different colors (black, silver), while the Leica SL3-S 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 Sony A7C R is considerably smaller (42 percent) than the Leica SL3-S. Moreover, the A7C R is substantially lighter (39 percent) than the Leica SL3-S. 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. 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 Leica SL3-S gets 315 shots out of its Leica BP-SCL6 battery, while the A7C R can take 520 images on a single charge of its Sony NP-FZ100 power pack. The battery packs of both cameras can be charged via USB, which can be very convenient when travelling.

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	Street Price
1.		Leica SL3-S	141 mm	108 mm	85 mm	852 g	315	Y	Jan 2025	US$ 5 299	amazon.com
2.		Sony A7C R	124 mm	71 mm	63 mm	520 g	520	Y	Aug 2023	US$ 2 999	amazon.com
3.		Canon R1	158 mm	150 mm	87 mm	1115 g	1330	Y	Jul 2024	US$ 6 299	amazon.com
4.		Canon R3	150 mm	143 mm	87 mm	1015 g	760	Y	Sep 2021	US$ 5 999	amazon.com
5.		Leica SL2	146 mm	107 mm	42 mm	953 g	370	Y	Nov 2019	US$ 5 999	amazon.com
6.		Leica SL2-S	146 mm	107 mm	83 mm	931 g	510	Y	Dec 2020	US$ 4 899	amazon.com
7.		Leica SL3	141 mm	108 mm	85 mm	854 g	320	Y	Mar 2024	US$ 6 999	amazon.com
8.		Nikon Z5 II	134 mm	101 mm	72 mm	700 g	330	Y	Apr 2025	US$ 1 699	amazon.com
9.		Panasonic S1 II	134 mm	102 mm	92 mm	800 g	350	Y	May 2025	US$ 3 199	amazon.com
10.		Panasonic S5	133 mm	98 mm	82 mm	714 g	440	Y	Sep 2020	US$ 1 999	amazon.com
11.		Panasonic S5 II	134 mm	102 mm	90 mm	740 g	370	Y	Jan 2023	US$ 1 999	amazon.com
12.		Sony A7R II	127 mm	96 mm	60 mm	625 g	290	Y	Jun 2015	US$ 3 199	ebay.com
13.		Sony A7R IV	129 mm	96 mm	78 mm	665 g	670	Y	Jul 2019	US$ 3 499	ebay.com
14.		Sony A7R V	131 mm	97 mm	82 mm	723 g	530	Y	Oct 2022	US$ 3 899	amazon.com
15.		Sony A7S II	127 mm	96 mm	60 mm	627 g	370	Y	Sep 2015	US$ 2 999	ebay.com
16.		Sony A9 III	136 mm	97 mm	83 mm	702 g	530	Y	Nov 2023	US$ 5 999	amazon.com
17.		Sony ZV-E1	121 mm	72 mm	54 mm	483 g	570	Y	Mar 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

Any camera decision will obviously take relative prices into account. The manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The A7C R was launched at a markedly lower price (by 43 percent) than the Leica SL3-S, 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 imaging sensor is at the core of digital cameras and its size is one of the main determining factors 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. 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.

Both cameras under consideration feature a full frame sensor, but their sensors differ slightly in size. The sensor area in the A7C R is 2 percent smaller. They nevertheless have the same format factor of 1.0. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Despite having a slightly smaller sensor, the A7C R offers a higher resolution of 60.2 megapixels, compared with 24 MP of the Leica SL3-S. This megapixels advantage comes at the cost of a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 3.76μm versus 6.00μm for the Leica SL3-S). Moreover, it should be noted that the Leica SL3-S is a somewhat more recent model (by 1 year and 4 months) than the A7C R, and its sensor might 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 resolution advantage of the Sony A7C R implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A7C R for good quality output (200 dots per inch) amounts to 47.5 x 31.7 inches or 120.7 x 80.5 cm, for very good quality (250 dpi) 38 x 25.3 inches or 96.6 x 64.4 cm, and for excellent quality (300 dpi) 31.7 x 21.1 inches or 80.5 x 53.6 cm. The corresponding values for the Leica SL3-S are 30 x 20 inches or 76.2 x 50.8 cm for good quality, 24 x 16 inches or 61 x 40.6 cm for very good quality, and 20 x 13.3 inches or 50.8 x 33.9 cm for excellent quality prints.

Both cameras have the capacity to capture high quality composite images by combining multiple shots after shifting the sensor by miniscule distances. This multi-shot, pixel-shift mode is most suitable for photography of stationary objects (landscapes, studio scenes).

The Leica SL3-S has a native sensitivity range from ISO 100 to ISO 50000, which can be extended to ISO 50-100000. The corresponding ISO settings for the Sony Alpha A7C R are ISO 100 to ISO 32000, with the possibility to increase the ISO range to 50-102400.

In terms of underlying technology, the Leica SL3-S is build around a CMOS sensor, while the A7C R uses a BSI-CMOS imager. 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 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 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 SL3-S	Full Frame	24.0	6000	4000	6K/30p	25.4	14.8	3383	97
2.		Sony A7C R	Full Frame	60.2	9504	6336	4K/60p	25.4	14.7	3227	96
3.		Canon R1	Full Frame	24.0	6000	4000	6K/60p	25.4	14.8	3332	97
4.		Canon R3	Full Frame	24.0	6000	4000	6K/60p	25.0	14.7	4086	96
5.		Leica SL2	Full Frame	46.7	8368	5584	4K/60p	25.3	14.3	2866	95
6.		Leica SL2-S	Full Frame	24.0	6000	4000	4K/60p	25.2	14.1	3504	95
7.		Leica SL3	Full Frame	60.3	9520	6336	8K/30p	25.4	14.8	3295	97
8.		Nikon Z5 II	Full Frame	24.4	6048	4032	4K/60p	25.4	14.8	3398	97
9.		Panasonic S1 II	Full Frame	24.0	6000	4000	6K/30p	25.4	14.8	3406	97
10.		Panasonic S5	Full Frame	24.0	6000	4000	4K/60p	25.1	14.5	2697	94
11.		Panasonic S5 II	Full Frame	24.0	6000	4000	6K/30p	25.4	14.6	3158	96
12.		Sony A7R II	Full Frame	42.2	7952	5304	4K/30p	26.0	13.9	3434	98
13.		Sony A7R IV	Full Frame	60.2	9504	6336	4K/30p	26.0	14.8	3344	99
14.		Sony A7R V	Full Frame	60.2	9504	6336	8k/24p	26.5	14.8	3187	100
15.		Sony A7S II	Full Frame	12.0	4240	2832	4K/30p	23.6	13.3	2993	85
16.		Sony A9 III	Full Frame	24.0	6000	4000	4K/120p	25.4	14.7	3243	96
17.		Sony ZV-E1	Full Frame	12.0	4240	2832	4K/60p	25.4	14.6	3181	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 can also record movies. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the Leica SL3-S provides a higher video resolution than the A7C R. It can shoot video footage at 6K/30p, while the Sony 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 consideration are similar with respect to both having an electronic viewfinder. However, the one in the Leica SL3-S offers a substantially higher resolution than the one in the A7C R (5760k vs 2360k dots). The following table reports on some other key feature differences and similarities of the Leica SL3-S, the Sony A7C R, and comparable 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 SL3-S	5760	Y	3.2 / 2333	tilting	Y	1/8000s	30.0/s	n	Y
2.		Sony A7C R	2360	n	3.0 / 1037	swivel	Y	1/4000s	8.0/s	n	Y
3.		Canon R1	9440	Y	3.2 / 2100	swivel	Y	1/8000s	12.0/s	n	Y
4.		Canon R3	5760	Y	3.2 / 4150	swivel	Y	1/8000s	12.0/s	n	Y
5.		Leica SL2	5760	Y	3.2 / 2100	fixed	Y	1/8000s	10.0/s	n	Y
6.		Leica SL2-S	5760	Y	3.2 / 2100	fixed	Y	1/8000s	20.0/s	n	Y
7.		Leica SL3	5760	Y	3.2 / 2333	tilting	Y	1/8000s	5.0/s	n	Y
8.		Nikon Z5 II	3690	n	3.2 / 2100	swivel	Y	1/8000s	14.0/s	n	Y
9.		Panasonic S1 II	5760	n	3.2 / 1840	full-flex	Y	1/8000s	10.0/s	n	Y
10.		Panasonic S5	2360	n	3.0 / 1840	swivel	Y	1/8000s	7.0/s	n	Y
11.		Panasonic S5 II	3680	n	3.0 / 1840	swivel	Y	1/8000s	9.0/s	n	Y
12.		Sony A7R II	2400	n	3.0 / 1229	tilting	n	1/8000s	5.0/s	n	Y
13.		Sony A7R IV	5760	n	3.0 / 1440	tilting	Y	1/8000s	10.0/s	n	Y
14.		Sony A7R V	9440	n	3.2 / 2100	full-flex	Y	1/8000s	10.0/s	n	Y
15.		Sony A7S II	2400	n	3.0 / 1229	tilting	n	1/8000s	5.0/s	n	Y
16.		Sony A9 III	9440	n	3.2 / 2100	full-flex	Y	1/80000s	120.0/s	n	Y
17.		Sony ZV-E1	none	n	3.0 / 1037	swivel	Y	1/8000s	10.0/s	n	Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One feature that is present on the Leica SL3-S, but is missing on the A7C R is a top-level LCD. While being, of course, smaller than the rear screen, the control panel conveys some of the essential shooting information and can be convenient for quick and easy settings verification.

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 SL3-S and the Sony A7C R 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.

The Leica SL3-S writes its imaging data to CFexpress (type B) or SDXC cards, while the A7C R uses SDXC or Memory Stick PRO Duo cards. The Leica SL3-S features dual card slots, which can be very useful in case a memory card fails. In contrast, the A7C R 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 Leica SL3-S and Sony Alpha A7C R 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 SL3-S	Y	stereo / mono	Y	Y	full	3.2	Y	-	Y
2.		Sony A7C R	Y	stereo / mono	Y	Y	micro	3.2	Y	-	Y
3.		Canon R1	Y	stereo / mono	Y	Y	full	3.2	Y	-	Y
4.		Canon R3	Y	stereo / mono	Y	Y	micro	3.2	Y	-	Y
5.		Leica SL2	Y	stereo / mono	Y	Y	full	3.1	Y	-	Y
6.		Leica SL2-S	Y	stereo / mono	Y	Y	full	3.2	Y	-	Y
7.		Leica SL3	Y	stereo / mono	Y	Y	full	3.1	Y	-	Y
8.		Nikon Z5 II	Y	stereo / mono	Y	Y	micro	3.2	Y	-	Y
9.		Panasonic S1 II	Y	stereo / mono	Y	Y	full	3.2	Y	-	Y
10.		Panasonic S5	Y	stereo / mono	Y	Y	micro	3.2	Y	-	Y
11.		Panasonic S5 II	Y	stereo / mono	Y	Y	full	3.2	Y	-	Y
12.		Sony A7R II	Y	stereo / mono	Y	Y	micro	2.0	Y	Y	-
13.		Sony A7R IV	Y	stereo / mono	Y	Y	micro	3.1	Y	Y	Y
14.		Sony A7R V	Y	stereo / mono	Y	Y	full	3.2	Y	-	Y
15.		Sony A7S II	Y	stereo / mono	Y	Y	micro	2.0	Y	Y	-
16.		Sony A9 III	Y	stereo / mono	Y	Y	full	3.2	Y	-	Y
17.		Sony ZV-E1	Y	stereo / mono	Y	Y	micro	3.2	Y	-	Y

Both the Leica SL3-S and the A7C R are recent models that are part of the current product line-up. The Leica SL3-S replaced the earlier Leica SL2-S, while the A7C R does not have a direct predecessor. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Leica and Sony websites.

Review summary

So how do things add up? Is the Leica SL3-S better than the Sony A7C R or vice versa? Below is a summary of the relative strengths of each of the two contestants.

Arguments in favor of the Leica SL3-S:

• Better video: Provides higher definition movie capture (6K/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 (0.76x vs 0.7x).
• Easier setting verification: Features an LCD display on top to control shooting parameters.
• Larger screen: Has a bigger rear LCD (3.2" vs 3.0") for image review and settings control.
• More detailed LCD: Has a higher resolution rear screen (2333k vs 1037k dots).
• Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
• Faster burst: Shoots at higher frequency (30 vs 8 flaps/sec) to capture the decisive moment.
• More solid recording: Has a full-sized HDMI port for a sturdy connection to an external recorder.
• Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
• More prestigious: Has the Leica luxury appeal, which ensures a high resale price.
• More modern: Is somewhat more recent (announced 1 year and 4 months after the A7C R).

Reasons to prefer the Sony Alpha A7C R:

• More detail: Has more megapixels (60.2 vs 24MP), which boosts linear resolution by 58%.
• 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.
• More compact: Is smaller (124x71mm vs 141x108mm) and will fit more readily into a bag.
• Less heavy: Has a lower weight (by 332g or 39 percent) and is thus easier to take along.
• Longer lasting: Gets more shots (520 versus 315) out of a single battery charge.
• More affordable: Was introduced into a lower priced category (43 percent cheaper at launch).
• More heavily discounted: Has been on the market for longer (launched in August 2023).

If the count of relative strengths (bullet points above) is taken as a measure, the Leica SL3-S is the clear winner of the match-up (12 : 8 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 Leica SL3-S and the Sony A7C R 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 technical specifications can provide a useful overview of the capabilities of different cameras, it says little about, for example, the shooting experience and imaging performance of the Leica SL3-S and the A7C R 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 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	Street Price
1.		Leica SL3-S	..	..	..	..	..	..	Jan 2025	US$ 5 299	amazon.com
2.		Sony A7C R	4/5	..	4/5	88/100	..	4/5	Aug 2023	US$ 2 999	amazon.com
3.		Canon R1	..	..	..	..	..	..	Jul 2024	US$ 6 299	amazon.com
4.		Canon R3	5/5	o	4.5/5	..	5/5	4.5/5	Sep 2021	US$ 5 999	amazon.com
5.		Leica SL2	4/5	..	4.5/5	..	4.5/5	4/5	Nov 2019	US$ 5 999	amazon.com
6.		Leica SL2-S	4/5	..	4/5	..	4.5/5	4.5/5	Dec 2020	US$ 4 899	amazon.com
7.		Leica SL3	..	..	4.5/5	..	..	4.5/5	Mar 2024	US$ 6 999	amazon.com
8.		Nikon Z5 II	..	..	..	..	..	..	Apr 2025	US$ 1 699	amazon.com
9.		Panasonic S1 II	..	..	..	..	..	..	May 2025	US$ 3 199	amazon.com
10.		Panasonic S5	4.5/5	+ +	4.5/5	88/100	4.5/5	4.5/5	Sep 2020	US$ 1 999	amazon.com
11.		Panasonic S5 II	4.5/5	+ +	5/5	90/100	4.5/5	5/5	Jan 2023	US$ 1 999	amazon.com
12.		Sony A7R II	5/5	+ +	5/5	90/100	5/5	5/5	Jun 2015	US$ 3 199	ebay.com
13.		Sony A7R IV	5/5	+	4.5/5	91/100	4.5/5	5/5	Jul 2019	US$ 3 499	ebay.com
14.		Sony A7R V	5/5	+ +	4.5/5	92/100	..	..	Oct 2022	US$ 3 899	amazon.com
15.		Sony A7S II	5/5	+	..	..	4.5/5	5/5	Sep 2015	US$ 2 999	ebay.com
16.		Sony A9 III	4.5/5	..	..	91/100	..	..	Nov 2023	US$ 5 999	amazon.com
17.		Sony ZV-E1	..	+	4/5	..	..	4.5/5	Mar 2023	US$ 2 199	amazon.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The review scores listed above should be treated with care, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

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Other camera comparisons

Did this review help to inform your camera decision process? In case you would like to check on the differences and similarities of other camera models, just make your choice using the following search menu. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.

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