Leica CL vs Sony A7S II
The Leica CL (Typ 7323) and the Sony Alpha 7S II are two digital cameras that were revealed to the public, respectively, in November 2017 and September 2015. Both the CL and the A7S II are mirrorless interchangeable lens cameras that are based on an APS-C (CL) and a full frame (A7S II) sensor. The Leica has a resolution of 24.1 megapixels, whereas the Sony provides 12 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
Going beyond this snapshot of core features and characteristics, what are the differences between the Leica CL (Typ 7323) and the Sony Alpha 7S II? 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.
The side-by-side display below illustrates the physical size and weight of the Leica CL and the Sony A7S II. 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 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 Sony A7S II is notably larger (19 percent) than the Leica CL. Moreover, the A7S II is substantially heavier (56 percent) than the CL. It is noteworthy in this context that the A7S II is splash and dust-proof, while the CL does not feature any corresponding weather-sealing.
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 CL gets 220 shots out of its BP-DC12 battery, while the A7S II can take 370 images on a single charge of its NP-FW50 power pack. The power pack in the A7S II can be charged via the USB port, 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.
|1.||Leica CL||131 mm||78 mm||45 mm||403 g||220||n||Nov 2017||2,795|
|2.||Sony A7S II||127 mm||96 mm||60 mm||627 g||370||Y||Sep 2015||2,999|
|3.||Fujifilm X-T100||121 mm||83 mm||47 mm||448 g||430||n||May 2018||599|
|4.||Fujifilm X-T20||118 mm||83 mm||41 mm||383 g||350||n||Jan 2017||899|
|5.||Fujifilm X-A3||117 mm||67 mm||40 mm||339 g||410||n||Aug 2016||399|
|6.||Leica C-LUX||113 mm||67 mm||46 mm||340 g||370||n||Jun 2018||1,049|
|7.||Leica TL2||134 mm||69 mm||33 mm||399 g||250||n||Jul 2017||1,950|
|8.||Leica TL||134 mm||69 mm||33 mm||384 g||400||n||Nov 2016||1,695|
|9.||Leica T||134 mm||69 mm||33 mm||384 g||400||n||Apr 2014||1,850|
|10.||Nikon D3500||124 mm||97 mm||70 mm||415 g||1550||n||Aug 2018||429|
|11.||Nikon D5600||124 mm||97 mm||70 mm||465 g||970||n||Nov 2016||699|
|12.||Nikon D3400||124 mm||98 mm||76 mm||445 g||1200||n||Aug 2016||499|
|13.||Sony A7S III||127 mm||97 mm||81 mm||699 g||600||Y||Jul 2020||3,499|
|14.||Sony A99 II||143 mm||104 mm||76 mm||849 g||490||Y||Sep 2016||3,199|
|15.||Sony A7R II||127 mm||96 mm||60 mm||625 g||290||Y||Jun 2015||3,199|
|16.||Sony A7 II||127 mm||96 mm||60 mm||599 g||350||Y||Nov 2014||1,999|
|17.||Sony A7S||127 mm||94 mm||48 mm||489 g||380||Y||Apr 2014||2,499|
|Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.|
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. The CL was somewhat cheaper (by 7 percent) than the A7S II at launch, but both cameras fall into the same price category. 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.
The size of the imaging sensor is a crucial determinant 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 tend to be associated with larger, more expensive camera bodies and lenses.
Of the two cameras under consideration, the Leica CL features an APS-C sensor and the Sony A7S II a full frame sensor. The sensor area in the A7S II is 128 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.5 and 1.0. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
Despite having a smaller sensor, the Leica CL offers a higher resolution of 24.1 megapixels, compared with 12 MP of the Sony A7S II. 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 3.92μm versus 8.40μm for the A7S II). However, it should be noted that the CL is much more recent (by 2 years and 2 months) than the A7S II, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently. 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 Leica CL implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the CL for good quality output (200 dots per inch) amounts to 30.1 x 20.1 inches or 76.4 x 51 cm, for very good quality (250 dpi) 24.1 x 16.1 inches or 61.1 x 40.8 cm, and for excellent quality (300 dpi) 20 x 13.4 inches or 50.9 x 34 cm. The corresponding values for the Sony A7S II are 21.2 x 14.2 inches or 53.8 x 36 cm for good quality, 17 x 11.3 inches or 43.1 x 28.8 cm for very good quality, and 14.1 x 9.4 inches or 35.9 x 24 cm for excellent quality prints.
The Leica CL (Typ 7323) has a native sensitivity range from ISO 100 to ISO 50000. The corresponding ISO settings for the Sony Alpha 7S II are ISO 100 to ISO 102400, with the possibility to increase the ISO range to 50-409600.
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 adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.
|2.||Sony A7S II||Full Frame||12.0||4240||2832||4K/30p||23.6||13.3||2993||85|
|13.||Sony A7S III||Full Frame||12.0||4240||2832||4K/120p||23.7||13.9||2520||86|
|14.||Sony A99 II||Full Frame||42.2||7952||5304||4K/30p||25.4||13.4||2317||92|
|15.||Sony A7R II||Full Frame||42.2||7952||5304||4K/30p||26.0||13.9||3434||98|
|16.||Sony A7 II||Full Frame||24.0||6000||4000||1080/60p||24.9||13.6||2449||90|
|17.||Sony A7S||Full Frame||12.0||4240||2832||1080/60p||23.9||13.2||3702||87|
Many modern cameras cannot only take still pictures, but also record videos. 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).
Beyond body and sensor, cameras can and do differ across a range of features. The two cameras under review are similar with respect to both having an electronic viewfinder. However, the one in the A7S II offers a slightly higher resolution than the one in the CL (2400k vs 2360k dots). The following table reports on some other key feature differences and similarities of the Leica CL, the Sony A7S II, and comparable cameras.
|1.||Leica CL||2360||Y||3.0 / 1040||fixed||Y||1/8000s||10.0||n||n|
|2.||Sony A7S II||2400||n||3.0 / 1229||tilting||n||1/8000s||5.0||n||Y|
|3.||Fujifilm X-T100||2360||n||3.0 / 1040||swivel||Y||1/4000s||6.0||Y||n|
|4.||Fujifilm X-T20||2360||n||3.0 / 1040||tilting||Y||1/4000s||8.0||Y||n|
|5.||Fujifilm X-A3||none||n||3.0 / 1040||tilting||Y||1/4000s||6.0||Y||n|
|6.||Leica C-LUX||2330||n||3.0 / 1240||fixed||Y||1/2000s||10.0||Y||Y|
|7.||Leica TL2||optional||n||3.7 / 1230||fixed||Y||1/4000s||7.0||n||n|
|8.||Leica TL||optional||n||3.7 / 1230||fixed||Y||1/4000s||5.0||Y||n|
|9.||Leica T||optional||n||3.7 / 1230||fixed||Y||1/4000s||5.0||Y||n|
|10.||Nikon D3500||optical||n||3.0 / 921||fixed||n||1/4000s||5.0||Y||n|
|11.||Nikon D5600||optical||n||3.2 / 1037||swivel||Y||1/4000s||5.0||Y||n|
|12.||Nikon D3400||optical||n||3.0 / 921||fixed||n||1/4000s||5.0||Y||n|
|13.||Sony A7S III||9440||n||3.0 / 1440||swivel||Y||1/8000s||10.0||n||Y|
|14.||Sony A99 II||2400||Y||3.0 / 1229||full-flex||n||1/8000s||12.0||n||Y|
|15.||Sony A7R II||2400||n||3.0 / 1229||tilting||n||1/8000s||5.0||n||Y|
|16.||Sony A7 II||2400||n||3.0 / 1230||tilting||n||1/8000s||5.0||n||Y|
|17.||Sony A7S||2400||n||3.0 / 921||tilting||n||1/8000s||5.0||n||n|
One feature that is present on the CL, but is missing on the A7S II 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 CL writes its imaging data to SDXC cards, while the A7S II uses SDXC or Memory Stick PRO Duo cards. The CL supports UHS-II cards (Ultra High Speed data transfer of up to 312 MB/s), while the A7S II can use UHS-I cards (up to 104 MB/s).
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 CL (Typ 7323) and Sony Alpha 7S II and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Mic / Speaker
|1.||Leica CL||Y||stereo / mono||-||-||-||-||Y||-||-|
|2.||Sony A7S II||Y||stereo / mono||Y||Y||micro||2.0||Y||Y||-|
|3.||Fujifilm X-T100||Y||stereo / mono||Y||-||micro||2.0||Y||-||Y|
|4.||Fujifilm X-T20||Y||stereo / mono||Y||-||micro||2.0||Y||-||-|
|5.||Fujifilm X-A3||Y||stereo / mono||-||-||micro||2.0||Y||-||-|
|6.||Leica C-LUX||-||stereo / mono||-||-||micro||2.0||Y||-||-|
|7.||Leica TL2||Y||stereo / mono||-||-||micro||3.0||Y||-||-|
|8.||Leica TL||Y||stereo / mono||-||-||micro||2.0||Y||-||-|
|9.||Leica T||Y||stereo / mono||-||-||-||2.0||Y||-||-|
|10.||Nikon D3500||Y||mono / mono||-||-||mini||2.0||-||-||Y|
|11.||Nikon D5600||Y||stereo / mono||Y||-||mini||2.0||Y||Y||Y|
|12.||Nikon D3400||Y||mono / mono||-||-||mini||2.0||-||-||Y|
|13.||Sony A7S III||Y||stereo / mono||Y||Y||full||3.2||Y||-||Y|
|14.||Sony A99 II||Y||stereo / mono||Y||Y||micro||2.0||Y||Y||Y|
|15.||Sony A7R II||Y||stereo / mono||Y||Y||micro||2.0||Y||Y||-|
|16.||Sony A7 II||Y||stereo / mono||Y||Y||micro||2.0||Y||Y||-|
|17.||Sony A7S||Y||stereo / mono||Y||Y||micro||2.0||Y||Y||-|
It is notable that the A7S II has a headphone jack, which makes it possible to attach external headphones and monitor the quality of sound during the recording process. The CL lacks such a headphone port.
The CL is a recent model that features in the current product line-up of Leica. In contrast, the A7S II has been discontinued (but can be found pre-owned on eBay). As a replacement in the same line of cameras, the A7S II was succeeded by the Sony A7S III. 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.
So how do things add up? Is there a clear favorite between the Leica CL and the Sony A7S II? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.
Arguments in favor of the Leica CL (Typ 7323):
- More detail: Offers more megapixels (24.1 vs 12MP) with a 42% higher linear resolution.
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- Easier setting verification: Features an LCD display on top to control shooting parameters.
- Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
- Faster burst: Shoots at higher frequency (10 vs 5 flaps/sec) to capture the decisive moment.
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- More compact: Is smaller (131x78mm vs 127x96mm) and thus needs less room in the bag.
- Less heavy: Is lighter (by 224g or 36 percent) and hence easier to carry around.
- Faster buffer clearing: Supports a more advanced SD data transfer standard (UHS-II vs UHS-I).
- More prestigious: Has the Leica luxury appeal, which ensures a high resale price.
- More modern: Reflects 2 years and 2 months of technical progress since the A7S II launch.
Reasons to prefer the Sony Alpha 7S II:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- Better image quality: Features bigger pixels on a larger sensor for higher quality imaging.
- Richer colors: The pixel size advantage translates into images with better, more accurate colors.
- More dynamic range: Larger pixels capture a wider spectrum of light and dark details.
- Better low-light sensitivity: Larger pixels means good image quality even under poor lighting.
- 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.
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.78x vs 0.49x).
- More detailed LCD: Has a higher resolution rear screen (1229k vs 1040k dots).
- More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
- Longer lasting: Gets more shots (370 versus 220) out of a single battery charge.
- Easier travel charging: Can be conveniently charged via its USB port.
- Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
- 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 heavily discounted: Has been around for much longer (launched in September 2015).
If the count of relative strengths (bullet points above) is taken as a measure, the A7S II is the clear winner of the contest (16 : 11 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 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 CL and the Sony A7S II 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 specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it says little about, for example, the shooting experience and imaging performance of the CL and the A7S II in practical situations. At times, user reviews, such as those published at amazon, address these issues in a useful manner, but such feedback is on many occasions incomplete, inconsistent, and unreliable.
This is where reviews by experts come in. The adjacent summary-table relays the overall verdicts of several of the most popular 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.
|1.||Leica CL||..||..||4.2/5||..||..||4/5||Nov 2017||2,795|
|2.||Sony A7S II||5/5||+||..||..||4.5/5||5/5||Sep 2015||2,999|
|3.||Fujifilm X-T100||4/5||+||4.5/5||79/100||4/5||4.5/5||May 2018||599|
|4.||Fujifilm X-T20||5/5||+ +||5/5||82/100||5/5||4.5/5||Jan 2017||899|
|5.||Fujifilm X-A3||..||..||..||74/100||4.5/5||4/5||Aug 2016||399|
|6.||Leica C-LUX||..||..||..||..||4.5/5||4/5||Jun 2018||1,049|
|7.||Leica TL2||3.5/5||..||3/5||..||4/5||4/5||Jul 2017||1,950|
|8.||Leica TL||..||..||..||..||..||4/5||Nov 2016||1,695|
|9.||Leica T||3/5||..||..||..||4/5||4/5||Apr 2014||1,850|
|10.||Nikon D3500||..||..||4/5||75/100||4/5||4.5/5||Aug 2018||429|
|11.||Nikon D5600||4/5||..||4/5||79/100||4.5/5||4/5||Nov 2016||699|
|12.||Nikon D3400||4/5||+||4/5||76/100||4/5||4.5/5||Aug 2016||499|
|13.||Sony A7S III||..||+ +||5/5||91/100||4.5/5||5/5||Jul 2020||3,499|
|14.||Sony A99 II||..||..||4.5/5||85/100||4.5/5||4.5/5||Sep 2016||3,199|
|15.||Sony A7R II||5/5||+ +||5/5||90/100||5/5||5/5||Jun 2015||3,199|
|16.||Sony A7 II||5/5||+||4/5||82/100||4.5/5||5/5||Nov 2014||1,999|
|17.||Sony A7S||4/5||..||..||86/100||4.5/5||5/5||Apr 2014||2,499|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
Care should be taken when interpreting the review scores above, 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 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.
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. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.
- Canon 1D X Mark II vs Sony A7S II
- Canon 90D vs Leica CL
- Kodak AZ901 vs Leica CL
- Leica CL vs Leica D-LUX 7
- Leica CL vs Leica V-LUX 2
- Leica CL vs Nikon D700
- Leica CL vs Panasonic FZ80
- Leica SL2 vs Sony A7S II
- Olympus TG-4 vs Sony A7S II
- Panasonic G10 vs Sony A7S II
- Sony A7S II vs Sony HX80
- Sony A7S II vs Sony HX90V
Specifications: Leica CL vs Sony A7S II
Below is a side-by-side comparison of the specs of the two cameras to facilitate a quick review of their differences and common features.
|Camera Model||Leica CL||Sony A7S II|
|Camera Type||Mirrorless system camera||Mirrorless system camera|
|Camera Lens||Leica T mount lenses||Sony E mount lenses|
|Launch Date||November 2017||September 2015|
|Launch Price||USD 2,795||USD 2,999|
|Sensor Specs||Leica CL||Sony A7S II|
|Sensor Format||APS-C Sensor||Full Frame Sensor|
|Sensor Size||23.6 x 15.7 mm||35.6 x 23.8 mm|
|Sensor Area||370.52 mm2||847.28 mm2|
|Sensor Diagonal||28.3 mm||42.8 mm|
|Sensor Resolution||24.1 Megapixels||12 Megapixels|
|Image Resolution||6014 x 4014 pixels||4240 x 2832 pixels|
|Pixel Pitch||3.92 μm||8.40 μm|
|Pixel Density||6.52 MP/cm2||1.42 MP/cm2|
|Moiré control||no AA filter||Anti-Alias filter|
|Movie Capability||4K/30p Video||4K/30p Video|
|ISO Setting||100 - 50,000 ISO||100 - 102,400 ISO|
|ISO Boost||no Enhancement||50 - 409,600 ISO|
|Image Processor||Maestro II||BIONZ X|
|DXO Sensor Quality (score)||..||85|
|DXO Color Depth (bits)||..||23.6|
|DXO Dynamic Range (EV)||..||13.3|
|DXO Low Light (ISO)||..||2993|
|Screen Specs||Leica CL||Sony A7S II|
|Viewfinder Type||Electronic viewfinder||Electronic viewfinder|
|Viewfinder Field of View||100%||100%|
|Viewfinder Resolution||2360k dots||2400k dots|
|Top-Level Screen||Control Panel||no Top Display|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||3.0inch|
|LCD Resolution||1040k dots||1229k dots|
|LCD Attachment||Fixed screen||Tilting screen|
|Touch Input||Touchscreen||no Touchscreen|
|Shooting Specs||Leica CL||Sony A7S II|
|Focus System||Contrast-detect AF||Contrast-detect AF|
|Manual Focusing Aid||Focus Peaking||Focus Peaking|
|Max Shutter Speed (mechanical)||1/8000s||1/8000s|
|Continuous Shooting||10 shutter flaps/s||5 shutter flaps/s|
|Electronic Shutter||up to 1/25000s||YES|
|Time-Lapse Photography||Intervalometer built-in||no Intervalometer|
|Image Stabilization||Lens stabilization only||In-body stabilization|
|Fill Flash||no On-Board Flash||no On-Board Flash|
|Storage Medium||SDXC cards||MS or SDXC cards|
|Second Storage Option||Single card slot||Single card slot|
|UHS card support||UHS-II||UHS-I|
|Connectivity Specs||Leica CL||Sony A7S II|
|USB Connector||no USB||USB 2.0|
|HDMI Port||no HDMI||micro HDMI|
|Microphone Port||no MIC socket||External MIC port|
|Headphone Socket||no Headphone port||Headphone port|
|Wifi Support||Wifi built-in||Wifi built-in|
|Near-Field Communication||no NFC||NFC built-in|
|Body Specs||Leica CL||Sony A7S II|
|Environmental Sealing||not weather sealed||Weathersealed body|
|Battery Life (CIPA)||220 shots per charge||370 shots per charge|
|In-Camera Charging||no USB charging||USB charging|
131 x 78 x 45 mm
(5.2 x 3.1 x 1.8 in)
127 x 96 x 60 mm
(5.0 x 3.8 x 2.4 in)
|Camera Weight||403 g (14.2 oz)||627 g (22.1 oz)|
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