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Leica CL versus Sony A7S II

The Leica CL (Typ 7323) and the Sony Alpha 7S II are two digital cameras that were officially introduced, 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 megapixel, whereas the Sony provides 12 MP. Read on to find out how these two cameras compare with respect to their size, their sensors, their features, and their reception by expert reviewers.

Body comparison: Leica CL vs Sony A7S II

An illustration of the physical size and weight of the Leica CL and the Sony A7S II is provided in the side-by-side display below. Three consecutive perspectives from the front, the top, and the back are presented. All size dimensions are rounded to the nearest millimeter. You can also use the toggle button to switch to a percentage comparison if you prefer that the measures are being expressed in relative terms (in this case, the camera on the left – the CL – represents the basis or 100 percent across all the size and weight measures).

Compare Leica CL vs Sony A7S II
CL versus A7S II top view
CL and A7S II rear side
Body view (CL on the left)

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 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 table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. If you want to switch the focus of the display and review another camera pair, just select a new right or left comparator from among the camera models in the table. Alternatively, you can also move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.

Camera Body Specifications
Camera Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
(CIPA)
Weather
Sealing
(y/n)
Camera
Launch
(year)
Launch
Price
(USD)
Street
Price
(amazon)
Used
Price
(ebay)
Leica CL (⇒ rgt) 131 mm 78 mm 45 mm 403 g 220 no 2017 2,795 latest check
Sony A7S II (⇒ lft) 127 mm 96 mm 60 mm 627 g 370 YES 2015 2,999 latest check
Canon 200D (⇒ lft | rgt) 122 mm 93 mm 70 mm 453 g 650 no 2017 549 latest check
Canon M6 (⇒ lft | rgt) 112 mm 68 mm 45 mm 390 g 295 no 2017 779 latest check
Canon M5 (⇒ lft | rgt) 116 mm 89 mm 61 mm 427 g 295 no 2016 979 latest check
Fujifilm X-A3 (⇒ lft | rgt) 117 mm 67 mm 40 mm 339 g 410 no 2016 399 latest check
Leica M10 (⇒ lft | rgt) 139 mm 80 mm 39 mm 660 g 210 no 2017 6,595 latest check
Leica TL2 (⇒ lft | rgt) 134 mm 69 mm 33 mm 399 g 250 no 2017 1,950 latest check
Leica TL (⇒ lft | rgt) 134 mm 69 mm 33 mm 384 g 400 no 2016 1,695discont. check
Leica X Vario (⇒ lft | rgt) 133 mm 73 mm 95 mm 680 g 450 no 2013 2,850 latest check
Nikon D3400 (⇒ lft | rgt) 124 mm 98 mm 76 mm 445 g 1200 no 2016 499 latest check
Nikon D5600 (⇒ lft | rgt) 124 mm 97 mm 70 mm 465 g 970 no 2016 699 latest check
Sony A7 III (⇒ lft | rgt) 127 mm 96 mm 74 mm 650 g 610 YES 2018 1,999 latest check
Sony A99 II (⇒ lft | rgt) 143 mm 104 mm 76 mm 849 g 490 YES 2016 3,199 latest check
Sony A7R II (⇒ lft | rgt) 127 mm 96 mm 60 mm 625 g 290 YES 2015 3,199discont. check
Sony A7 II (⇒ lft | rgt) 127 mm 96 mm 60 mm 599 g 350 YES 2014 1,999discont. check
Sony A7S (⇒ lft | rgt) 127 mm 94 mm 48 mm 489 g 380 YES 2014 2,499discont. check

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. 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.


Sensor comparison: Leica CL vs Sony A7S II

The size of the sensor inside a digital camera is one of the key determinants 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.

Leica CL and Sony A7S II sensor measures
Sensor size

Despite having a smaller sensor, the Leica CL offers a higher resolution of 24.1 megapixel, compared with 12 MP of the Sony A7S II. This megapixel 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.

CL versus A7S II MP
Sensor resolution

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 table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.

Sensor Characteristics
Camera Sensor
Class
Resolution
(Megapixel)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Leica CL (⇒ rgt) APS-C 24.1 6014 4014 4K/30p .. .. .. ..
Sony A7S II (⇒ lft) Full Frame 12.0 4240 2832 4K/30p 23.6 13.3 2993 85
Canon 200D (⇒ lft | rgt) APS-C 24.0 6000 4000 1080/60p 23.6 13.4 1041 79
Canon M6 (⇒ lft | rgt) APS-C 24.0 6000 4000 1080/60p .. .. .. ..
Canon M5 (⇒ lft | rgt) APS-C 24.0 6000 4000 1080/60p 23.4 12.4 1262 77
Fujifilm X-A3 (⇒ lft | rgt) APS-C 24.0 6000 4000 1080/60p - - - -
Leica M10 (⇒ lft | rgt) Full Frame 23.8 5952 3992 no 24.4 13.2 2133 86
Leica TL2 (⇒ lft | rgt) APS-C 24.1 6014 4014 4K/30p .. .. .. ..
Leica TL (⇒ lft | rgt) APS-C 16.1 4928 3264 1080/30p - - - -
Leica X Vario (⇒ lft | rgt) APS-C 16.1 4928 3272 1080/30p 23.4 12.7 1320 78
Nikon D3400 (⇒ lft | rgt) APS-C 24.0 6000 4000 1080/60p 24.8 13.9 1192 86
Nikon D5600 (⇒ lft | rgt) APS-C 24.0 6000 4000 1080/60p 24.1 14.0 1306 84
Sony A7 III (⇒ lft | rgt) Full Frame 24.0 6000 4000 4K/30p 25.0 14.7 3730 96
Sony A99 II (⇒ lft | rgt) Full Frame 42.2 7952 5304 4K/30p 25.4 13.4 2317 92
Sony A7R II (⇒ lft | rgt) Full Frame 42.2 7952 5304 4K/30p 26.0 13.9 3434 98
Sony A7 II (⇒ lft | rgt) Full Frame 24.0 6000 4000 1080/60p 24.9 13.6 2449 90
Sony A7S (⇒ lft | rgt) 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 are equipped with sensors that have a sufficiently high read-out speed for moving images, and both provide the same movie specifications (4K/30p).

Feature comparison: Leica CL vs Sony A7S II

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 table below summarizes some of the other core capabilities of the Leica CL and Sony A7S II in connection with corresponding information for a sample of similar cameras. If needed, the dpreview camera hub, for example, contains further detail on the cameras' specs.

Core Features
Camera Viewfinder
(Type or
'000 dots)
Control
Panel
(Y/n)
LCD
Size
(inch)
LCD
Resolution
('000 dots)
LCD
Attach-
ment
Touch
Screen
(Y/n)
Shutter
speed
(1/sec)
Shutter
flaps
(1/sec))
Build-in
Flash
(GN)
Build-in
Image
Stab
Leica CL (⇒ rgt) 2360 YES 3.0 1040 fixed YES 8000 10.0 no no
Sony A7S II (⇒ lft) 2400 no 3.0 1229 tilting no 8000 5.0 no YES
Canon 200D (⇒ lft | rgt) optical no 3.0 1040 swivel YES 4000 5.0 9.8 no
Canon M6 (⇒ lft | rgt) no no 3.0 1040 tilting YES 4000 9.0 5 no
Canon M5 (⇒ lft | rgt) 2360 no 3.2 1620 tilting YES 4000 9.0 5 no
Fujifilm X-A3 (⇒ lft | rgt) no no 3.0 1040 tilting YES 4000 6.0 7 no
Leica M10 (⇒ lft | rgt) optical no 3.0 1037 fixed no 4000 5.0 no no
Leica TL2 (⇒ lft | rgt) no no 3.7 1230 fixed YES 4000 7.0 no no
Leica TL (⇒ lft | rgt) no no 3.7 1230 fixed YES 4000 5.0 YES no
Leica X Vario (⇒ lft | rgt) no no 3.0 920 fixed no 2000 5.0 YES no
Nikon D3400 (⇒ lft | rgt) optical no 3.0 921 fixed no 4000 5.0 7 no
Nikon D5600 (⇒ lft | rgt) optical no 3.2 1037 swivel YES 4000 5.0 12 no
Sony A7 III (⇒ lft | rgt) 2359 no 3.0 922 tilting YES 8000 10 no YES
Sony A99 II (⇒ lft | rgt) 2400 YES 3.0 1229 full-flex no 8000 12.0 no YES
Sony A7R II (⇒ lft | rgt) 2400 no 3.0 1229 tilting no 8000 5.0 no YES
Sony A7 II (⇒ lft | rgt) 2400 no 3.0 1230 tilting no 8000 5.0 no YES
Sony A7S (⇒ lft | rgt) 2400 no 3.0 921 tilting no 8000 5.0 no no

Both the CL and the A7S II are current models that good online retailers will have in stock. You can check the latest prices, for example, at amazon. The A7S II replaced the earlier Sony A7S, while the CL does not have a direct predecessor.

Review summary: Leica CL vs Sony A7S II

So what is the bottom line? Which of the two cameras – the Leica CL or the Sony A7S II – has the upper hand? The listing below highlights the relative strengths of the two models.


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Reasons to prefer 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: Has 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.
  • 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.
  • 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.

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Advantages of the Sony Alpha 7S II:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Better low-light imaging: Features bigger pixels on a larger sensor for better high-ISO images.
  • 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.
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
  • Sharper images: Has stabilization technology build-in to reduce the impact of hand-shake.
  • More heavily discounted: Has been around for much longer (launched in September 2015).

If the count of individual advantages (bullet points above) is taken as a guide, the CL comes out slightly ahead of the A7S II (9 : 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.

CL 09:08 A7S II

In any case, while the specs-based evaluation of cameras is instructive in revealing their potential as photographic tools, it remains incomplete and does no justice, for example, to the way the CL or the A7S II handle or perform in practice. 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 why expert reviews are important. The adjacent table relays the overall verdicts of several of the most popular camera review sites. The detailed reviews can be accessed, respectively, on the websites of cameralabs.com, dpreview.com, ephotozine.com, imaging-resource.com, and photographyblog.com.

Review scores
Camera camera
labs
.com
dp
review
.com
ephoto
zine
.com
imaging
resource
.com
photography
blog
.com
Camera
Launch
(year)
Launch
Price
(USD)
Street
Price
(amazon)
Used
Price
(ebay)
Leica CL (⇒ rgt) .. .. .. .. 4/5 2017 2,795 latest check
Sony A7S II (⇒ lft) Rec - 4.5/5 5/5 5/5 2015 2,999 latest check
Canon 200D (⇒ lft | rgt) HiRec 78/100 Silver 4.5/5 4.5/5 4.5/5 2017 549 latest check
Canon M6 (⇒ lft | rgt) - 80/100 Silver 4/5 4.5/5 4/5 2017 779 latest check
Canon M5 (⇒ lft | rgt) Rec 82/100 Silver 4/5 4.5/5 4/5 2016 979 latest check
Fujifilm X-A3 (⇒ lft | rgt) - 74/100 4.5/5 - 4/5 2016 399 latest check
Leica M10 (⇒ lft | rgt) - - 4/5 - 4.5/5 2017 6,595 latest check
Leica TL2 (⇒ lft | rgt) .. .. 4/5 .. 4/5 2017 1,950 latest check
Leica TL (⇒ lft | rgt) - - - - 4/5 2016 1,695discont. check
Leica X Vario (⇒ lft | rgt) - - 4/5 4/5 4/5 2013 2,850 latest check
Nikon D3400 (⇒ lft | rgt) Rec 76/100 4/5 4.5/5 4.5/5 2016 499 latest check
Nikon D5600 (⇒ lft | rgt) - 79/100 Silver 4.5/5 4.5/5 4/5 2016 699 latest check
Sony A7 III (⇒ lft | rgt) HiRec 89/100 Gold 5/5 .. 5/5 2018 1,999 latest check
Sony A99 II (⇒ lft | rgt) - 85/100 Silver 4.5/5 4.5/5 4.5/5 2016 3,199 latest check
Sony A7R II (⇒ lft | rgt) HiRec 90/100 Gold 5/5 4.5/5 5/5 2015 3,199discont. check
Sony A7 II (⇒ lft | rgt) Rec 82/100 Silver 4.5/5 5/5 5/5 2014 1,999discont. check
Sony A7S (⇒ lft | rgt) - 86/100 Gold 4.5/5 4.5/5 5/5 2014 2,499discont. check

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.


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. If the camera you are interested in is not available, please contact me, and I will try to update the database with the necessary infos.

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