Zeiss ZX1 vs Leica CL

The Zeiss ZX1 and the Leica CL (Typ 7323) are two digital cameras that were officially introduced, respectively, in September 2018 and November 2017. The ZX1 is a fixed lens compact, while the CL is a mirrorless interchangeable lens camera. The cameras are based on a full frame (ZX1) and an APS-C (CL) sensor. The Zeiss has a resolution of 37.4 megapixels, whereas the Leica provides 24.1 MP.

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

Headline Specifications

Zeiss ZX1		Leica CL
Fixed lens compact camera		Mirrorless system camera
35mm f/2.8		Leica T mount lenses
37.4 MP – Full Frame sensor		24.1 MP – APS-C sensor
4K/30p Video		4K/30p Video
ISO 80-51,200		ISO 100-50,000
Electronic viewfinder (6221k dots)		Electronic viewfinder (2360k dots)
4.3" LCD – 2765k dots		3.0" LCD – 1040k dots
Fixed touchscreen		Fixed touchscreen
3 shutter flaps per second		10 shutter flaps per second
250 shots per battery charge		220 shots per battery charge
142 x 93 x 46 mm, 800 g		131 x 78 x 45 mm, 403 g

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Going beyond this snapshot of core features and characteristics, what are the differences between the Zeiss ZX1 and the Leica CL (Typ 7323)? 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 Zeiss ZX1 and the Leica CL 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 size 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 CL is notably smaller (23 percent) than the Zeiss ZX1. In this context, it is worth noting that neither the ZX1 nor the CL are weather-sealed.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the ZX1 has a lens built in, whereas the CL 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 ZX1 gets 250 shots out of its Zeiss DD-PS1A battery, while the CL can take 220 images on a single charge of its Leica BP-DC12 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 (USD)	Street Price
1.		Zeiss ZX1	142 mm	93 mm	46 mm	800 g	250	n	Sep 2018	5,999	ebay.com
2.		Leica CL	131 mm	78 mm	45 mm	403 g	220	n	Nov 2017	2,795	ebay.com
3.		Fujifilm X-A3	117 mm	67 mm	40 mm	339 g	410	n	Aug 2016	399	ebay.com
4.		Fujifilm X-T20	118 mm	83 mm	41 mm	383 g	350	n	Jan 2017	899	ebay.com
5.		Leica M-E Typ 240	139 mm	80 mm	42 mm	680 g	500	Y	Jun 2019	3,999	ebay.com
6.		Leica M10	139 mm	80 mm	39 mm	660 g	210	Y	Jan 2017	6,595	ebay.com
7.		Leica M10-P	139 mm	80 mm	39 mm	660 g	210	Y	Aug 2018	7,995	ebay.com
8.		Leica Q Typ 116	130 mm	80 mm	93 mm	640 g	300	n	Jun 2015	4,249	ebay.com
9.		Leica Q2	130 mm	80 mm	92 mm	718 g	370	Y	Mar 2019	4,995	amazon.com
10.		Leica Q3	130 mm	80 mm	93 mm	743 g	350	Y	May 2023	5,995	amazon.com
11.		Leica TL2	134 mm	69 mm	33 mm	399 g	250	n	Jul 2017	1,950	ebay.com
12.		Leica V-LUX 5	136 mm	97 mm	131 mm	812 g	350	n	Jul 2019	1,249	amazon.com
13.		Nikon D3400	124 mm	98 mm	76 mm	445 g	1200	n	Aug 2016	499	ebay.com
14.		Nikon D5600	124 mm	97 mm	70 mm	465 g	970	n	Nov 2016	699	ebay.com
15.		Panasonic FZ1000	137 mm	99 mm	131 mm	831 g	360	n	Jun 2014	899	ebay.com
16.		Panasonic FZ1000 II	136 mm	97 mm	131 mm	810 g	350	n	Feb 2019	899	amazon.com
17.		Sony RX1R II	113 mm	65 mm	72 mm	507 g	220	n	Oct 2015	3,299	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 listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. Normally, street prices remain initially close to the MSRP, but after a couple of months, the first discounts appear. 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. All other things equal, a large sensor will have larger individual pixel-units that offer better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixels 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 Zeiss ZX1 features a full frame sensor and the Leica CL an APS-C sensor. The sensor area in the CL is 57 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.0 and 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

With 37.4MP, the ZX1 offers a higher resolution than the CL (24.1MP), but the ZX1 nevertheless has larger individual pixels (pixel pitch of 4.81μm versus 3.92μm for the CL) due to its larger sensor. Moreover, the ZX1 is a somewhat more recent model (by 10 months) than the CL, 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 the CL has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Zeiss ZX1 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the ZX1 for good quality output (200 dots per inch) amounts to 37.4 x 25 inches or 95.1 x 63.4 cm, for very good quality (250 dpi) 30 x 20 inches or 76.1 x 50.7 cm, and for excellent quality (300 dpi) 25 x 16.6 inches or 63.4 x 42.3 cm. The corresponding values for the Leica CL are 30.1 x 20.1 inches or 76.4 x 51 cm for good quality, 24.1 x 16.1 inches or 61.1 x 40.8 cm for very good quality, and 20 x 13.4 inches or 50.9 x 34 cm for excellent quality prints.

The Zeiss ZX1 has a native sensitivity range from ISO 80 to ISO 51200. The corresponding ISO settings for the Leica CL (Typ 7323) are ISO 100 to ISO 50000 (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 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.		Zeiss ZX1	Full Frame	37.4	7488	4992	4K/30p	25.2	14.1	2759	94
2.		Leica CL	APS-C	24.1	6014	4014	4K/30p	24.0	13.3	1788	82
3.		Fujifilm X-A3	APS-C	24.0	6000	4000	1080/60p	23.8	13.1	1664	81
4.		Fujifilm X-T20	APS-C	24.0	6000	4000	4K/30p	23.9	13.2	1704	81
5.		Leica M-E Typ 240	Full Frame	23.7	5952	3976	1080/25p	25.2	14.2	2821	94
6.		Leica M10	Full Frame	23.8	5952	3992	none	24.4	13.2	2133	86
7.		Leica M10-P	Full Frame	23.8	5952	3992	none	25.1	14.1	2739	93
8.		Leica Q Typ 116	Full Frame	24.0	6000	4000	1080/60p	24.3	12.7	2221	85
9.		Leica Q2	Full Frame	46.7	8368	5584	4K/30p	26.4	13.5	2491	96
10.		Leica Q3	Full Frame	60.3	9528	6328	8K/30p	25.4	14.7	3216	96
11.		Leica TL2	APS-C	24.1	6014	4014	4K/30p	23.9	13.3	1753	82
12.		Leica V-LUX 5	1-inch	20.0	5472	3648	4K/30p	22.2	12.4	584	65
13.		Nikon D3400	APS-C	24.0	6000	4000	1080/60p	24.8	13.9	1192	86
14.		Nikon D5600	APS-C	24.0	6000	4000	1080/60p	24.1	14.0	1306	84
15.		Panasonic FZ1000	1-inch	20.0	5472	3648	4K/30p	22.1	11.7	517	64
16.		Panasonic FZ1000 II	1-inch	20.0	5472	3648	4K/30p	22.1	12.4	546	65
17.		Sony RX1R II	Full Frame	42.2	7952	5304	1080/60p	25.8	13.9	3204	97
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, and both provide the same movie specifications (4K/30p).

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 ZX1 offers a substantially higher resolution than the one in the CL (6221k vs 2360k dots). The adjacent table lists some of the other core features of the Zeiss ZX1 and Leica CL 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.		Zeiss ZX1	6221	n	4.3 / 2765	fixed	Y	1/1000s	3.0/s	n	n
2.		Leica CL	2360	Y	3.0 / 1040	fixed	Y	1/8000s	10.0/s	n	n
3.		Fujifilm X-A3	none	n	3.0 / 1040	tilting	Y	1/4000s	6.0/s	Y	n
4.		Fujifilm X-T20	2360	n	3.0 / 1040	tilting	Y	1/4000s	8.0/s	Y	n
5.		Leica M-E Typ 240	optical	n	3.0 / 920	fixed	n	1/4000s	3.0/s	n	n
6.		Leica M10	optical	n	3.0 / 1037	fixed	n	1/4000s	5.0/s	n	n
7.		Leica M10-P	optical	n	3.0 / 1037	fixed	Y	1/4000s	5.0/s	n	n
8.		Leica Q Typ 116	3680	n	3.0 / 1040	fixed	Y	1/2000s	10.0/s	n	Y
9.		Leica Q2	3680	n	3.0 / 1040	fixed	Y	1/2000s	10.0/s	n	Y
10.		Leica Q3	5760	n	3.0 / 1840	tilting	Y	1/2000s	15.0/s	n	Y
11.		Leica TL2	optional	n	3.7 / 1230	fixed	Y	1/4000s	7.0/s	n	n
12.		Leica V-LUX 5	2360	n	3.0 / 1240	swivel	Y	1/4000s	12.0/s	Y	Y
13.		Nikon D3400	optical	n	3.0 / 921	fixed	n	1/4000s	5.0/s	Y	n
14.		Nikon D5600	optical	n	3.2 / 1037	swivel	Y	1/4000s	5.0/s	Y	n
15.		Panasonic FZ1000	2359	n	3.0 / 921	swivel	n	1/4000s	12.0/s	Y	Y
16.		Panasonic FZ1000 II	2360	n	3.0 / 1240	swivel	Y	1/4000s	12.0/s	Y	Y
17.		Sony RX1R II	2360	n	3.0 / 1229	tilting	n	1/4000s	5.0/s	n	n
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One feature that is present on the CL, but is missing on the ZX1 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 CL 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.

The ZX1 writes its imaging data to an internal SSD, while the CL uses SDXC 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 Zeiss ZX1 and Leica CL (Typ 7323) 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.		Zeiss ZX1	Y	stereo / mono	-	-	-	3.1	Y	Y	Y
2.		Leica CL	Y	stereo / mono	-	-	-	-	Y	-	-
3.		Fujifilm X-A3	Y	stereo / mono	-	-	micro	2.0	Y	-	-
4.		Fujifilm X-T20	Y	stereo / mono	Y	-	micro	2.0	Y	-	-
5.		Leica M-E Typ 240	Y	mono / -	-	-	-	2.0	-	-	-
6.		Leica M10	Y	- / -	-	-	-	-	Y	-	-
7.		Leica M10-P	Y	- / -	-	-	-	-	Y	-	-
8.		Leica Q Typ 116	Y	stereo / mono	-	-	micro	2.0	Y	Y	-
9.		Leica Q2	Y	stereo / mono	-	-	-	-	Y	-	Y
10.		Leica Q3	Y	stereo / mono	-	-	micro	3.1	Y	-	Y
11.		Leica TL2	Y	stereo / mono	-	-	micro	3.0	Y	-	-
12.		Leica V-LUX 5	Y	stereo / mono	-	-	micro	2.0	Y	-	Y
13.		Nikon D3400	Y	mono / mono	-	-	mini	2.0	-	-	Y
14.		Nikon D5600	Y	stereo / mono	Y	-	mini	2.0	Y	Y	Y
15.		Panasonic FZ1000	Y	stereo / mono	Y	-	micro	2.0	Y	Y	-
16.		Panasonic FZ1000 II	Y	stereo / mono	Y	-	micro	2.0	Y	-	Y
17.		Sony RX1R II	Y	stereo / mono	Y	-	micro	2.0	Y	Y	-

Both the ZX1 and the CL have been discontinued, but can regularly be found used on ebay. Neither of the two has a direct successor, so they represent the end of the respective camera lines from Zeiss and Leica. Further information on the features and operation of the ZX1 and CL can be found, respectively, in the Zeiss ZX1 Manual (free pdf) or the online Leica CL Manual.

Review summary

So what is the bottom line? Is the Zeiss ZX1 better than the Leica CL or vice versa? The listing below highlights the relative strengths of the two models.

Advantages of the Zeiss ZX1:

• More detail: Offers more megapixels (37.4 vs 24.1MP) with a 24% higher linear resolution.
• Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
• 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.
• More detailed viewfinder: Has higher resolution electronic viewfinder (6221k vs 2360k dots).
• Larger viewfinder image: Features a viewfinder with a higher magnification (0.74x vs 0.49x).
• Larger screen: Has a bigger rear LCD (4.3" vs 3.0") for image review and settings control.
• More detailed LCD: Has a higher resolution rear screen (2765k vs 1040k dots).
• Ready to shoot: Has a lens built-in, whereas the CL requires a separate lens.
• Longer lasting: Can take more shots (250 versus 220) on a single battery charge.
• Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
• Easier wireless transfer: Supports Bluetooth for image sharing without cables.
• More modern: Is somewhat more recent (announced 10 months after the CL).

Arguments in favor of the Leica CL (Typ 7323):

• Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
• Easier setting verification: Features a control panel on top to check shooting parameters.
• Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/1000s) to freeze action.
• Faster burst: Shoots at higher frequency (10 vs 3 flaps/sec) to capture the decisive moment.
• Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
• More flexible: Takes interchangeable lenses and can thus be used with specialty optics.
• More compact: Is smaller (131x78mm vs 142x93mm) and will fit more readily into a bag.
• More heavily discounted: Has been on the market for longer (launched in November 2017).

If the count of relative strengths (bullet points above) is taken as a measure, the ZX1 is the clear winner of the match-up (15 : 8 points). However, the pertinence of the various camera strengths will differ across photographers, so that you might want to weigh individual camera traits according to their importance for your own imaging needs before making a camera decision. 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.

How about other alternatives? Do the specifications of the Zeiss ZX1 and the Leica CL 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 specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the ZX1 or the CL. 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 (USD)	Street Price
1.		Zeiss ZX1	3/5	..	..	83/100	4/5	4/5	Sep 2018	5,999	ebay.com
2.		Leica CL	..	..	4.2/5	..	..	4/5	Nov 2017	2,795	ebay.com
3.		Fujifilm X-A3	..	..	..	74/100	4.5/5	4/5	Aug 2016	399	ebay.com
4.		Fujifilm X-T20	5/5	+ +	5/5	82/100	5/5	4.5/5	Jan 2017	899	ebay.com
5.		Leica M-E Typ 240	..	..	..	..	..	..	Jun 2019	3,999	ebay.com
6.		Leica M10	4.5/5	..	..	..	4/5	4.5/5	Jan 2017	6,595	ebay.com
7.		Leica M10-P	..	..	3/5	..	..	4/5	Aug 2018	7,995	ebay.com
8.		Leica Q Typ 116	5/5	..	..	80/100	4.5/5	4.5/5	Jun 2015	4,249	ebay.com
9.		Leica Q2	..	..	4.5/5	84/100	4.5/5	4/5	Mar 2019	4,995	amazon.com
10.		Leica Q3	5/5	..	4.5/5	..	..	4.5/5	May 2023	5,995	amazon.com
11.		Leica TL2	3.5/5	..	3/5	..	4/5	4/5	Jul 2017	1,950	ebay.com
12.		Leica V-LUX 5	..	..	..	..	4/5	4/5	Jul 2019	1,249	amazon.com
13.		Nikon D3400	4/5	+	4/5	76/100	4/5	4.5/5	Aug 2016	499	ebay.com
14.		Nikon D5600	4/5	..	4/5	79/100	4.5/5	4/5	Nov 2016	699	ebay.com
15.		Panasonic FZ1000	4/5	+ +	..	82/100	4.5/5	4.5/5	Jun 2014	899	ebay.com
16.		Panasonic FZ1000 II	..	..	..	83/100	4.5/5	4.5/5	Feb 2019	899	amazon.com
17.		Sony RX1R II	5/5	..	..	82/100	..	4.5/5	Oct 2015	3,299	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. Thus, a score needs to be put into the context of the launch date and the launch price 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

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