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Leica D-LUX Typ 109 versus Sony RX100 IV

The Leica D-LUX (Typ 109) and the Sony Cyber-shot DSC-RX100 IV are two digital cameras that were revealed to the public, respectively, in September 2014 and June 2015. Both the D-LUX Typ 109 and the RX100 IV are fixed lens compact cameras that are based on a Four Thirds (D-LUX Typ 109) and an one-inch (RX100 IV) sensor. The Leica has a resolution of 12.7 megapixel, whereas the Sony provides 20 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 D-LUX Typ 109 vs Sony RX100 IV

The physical size and weight of the Leica D-LUX Typ 109 and the Sony RX100 IV are illustrated in the side-by-side display below. Three consecutive views from the front, the top, and the rear side are shown. 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 D-LUX Typ 109 – represents 100 percent across all the size and weight measures).

Compare Leica D-LUX Typ 109 vs Sony RX100 IV
D-LUX Typ 109 versus RX100 IV top view
D-LUX Typ 109 and RX100 IV rear side
Body view (D-LUX Typ 109 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 RX100 IV is notably smaller (24 percent) than the Leica D-LUX Typ 109. Moreover, the RX100 IV is markedly lighter (26 percent) than the D-LUX Typ 109. In this context, it is worth noting that neither the D-LUX Typ 109 nor the RX100 IV are weather-sealed.

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 D-LUX Typ 109 (⇒ rgt) 118 mm 66 mm 55 mm 405 g 300 no 2014 1,195 latest check
Sony RX100 IV (⇒ lft) 102 mm 58 mm 41 mm 298 g 280 no 2015 999discont. check
Canon G7 X (⇒ lft | rgt) 103 mm 60 mm 40 mm 304 g 210 no 2014 699discont. check
Canon G16 (⇒ lft | rgt) 109 mm 76 mm 40 mm 356 g 360 no 2013 549 latest check
Fujifilm X100T (⇒ lft | rgt) 127 mm 74 mm 52 mm 440 g 330 no 2014 1,299discont. check
Fujifilm X30 (⇒ lft | rgt) 119 mm 72 mm 60 mm 423 g 470 no 2014 599 latest check
Fujifilm X100S (⇒ lft | rgt) 127 mm 74 mm 54 mm 445 g 330 no 2013 1,299discont. check
Fujifilm X20 (⇒ lft | rgt) 117 mm 70 mm 57 mm 353 g 270 no 2013 599discont. check
Fujifilm X100 (⇒ lft | rgt) 126 mm 75 mm 54 mm 445 g 300 no 2010 1,199discont. check
Leica V-LUX Typ 114 (⇒ lft | rgt) 137 mm 99 mm 131 mm 830 g 360 no 2014 1,349 latest check
Leica X Typ 113 (⇒ lft | rgt) 133 mm 73 mm 78 mm 486 g 350 no 2014 2,295 latest check
Leica D-LUX 6 (⇒ lft | rgt) 111 mm 68 mm 46 mm 298 g 330 no 2012 699discont. check
Panasonic FZ1000 (⇒ lft | rgt) 137 mm 99 mm 131 mm 831 g 360 no 2014 899discont. check
Panasonic LX100 (⇒ lft | rgt) 115 mm 66 mm 55 mm 393 g 300 no 2014 899 latest check
Sony RX100 V (⇒ lft | rgt) 102 mm 58 mm 41 mm 299 g 220 no 2016 999 latest check
Sony A6000 (⇒ lft | rgt) 120 mm 67 mm 45 mm 344 g 360 no 2014 599discont. check
Sony RX100 II (⇒ lft | rgt) 102 mm 58 mm 38 mm 281 g 350 no 2013 749discont. 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 RX100 IV was launched at a somewhat lower price (by 16 percent) than the D-LUX Typ 109, which makes it more attractive for photographers on a tight budget. 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 D-LUX Typ 109 vs Sony RX100 IV

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. 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 more expensive and lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Leica D-LUX Typ 109 features a Four Thirds sensor and the Sony RX100 IV an one-inch sensor. The sensor area in the RX100 IV is 48 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.0 and 2.7. The sensor in the D-LUX Typ 109 has a native 4:3 aspect ratio, while the one in the RX100 IV offers a 3:2 aspect.

Leica D-LUX Typ 109 and Sony RX100 IV sensor measures
Sensor size

Despite having a smaller sensor, the RX100 IV offers a higher resolution of 20 megapixel, compared with 12.7 MP of the D-LUX Typ 109. 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 2.41μm versus 4.21μm for the D-LUX Typ 109). However, it should be noted that the RX100 IV is a somewhat more recent model (by 8 months) than the D-LUX Typ 109, and its sensor might have benefitted from technological advances during this time that partly offset its pixel-size disadvantage.

D-LUX Typ 109 versus RX100 IV MP
Sensor resolution

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. This service determines an overall sensor rating, as well as sub-scores for low-light sensitivity ("DXO Sports"), dynamic range ("DXO Landscape"), and color depth ("DXO Portrait"). 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 Sensor
Class
Resolution
(Megapixel)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Leica D-LUX Typ 109 (⇒ rgt) Four Thirds 12.7 4112 3088 4K/30p - - - -
Sony RX100 IV (⇒ lft) 1-inch 20.0 5472 3648 4K/30p 22.8 12.6 591 70
Canon G7 X (⇒ lft | rgt) 1-inch 20.0 5472 3648 1080/60p 23.0 12.7 556 71
Canon G16 (⇒ lft | rgt) 1/1.7 12.0 4000 3000 1080/60p 21.0 11.7 230 54
Fujifilm X100T (⇒ lft | rgt) APS-C 16.0 4896 3264 1080/60p - - - -
Fujifilm X30 (⇒ lft | rgt) 2/3 12.0 4000 3000 1080/60p - - - -
Fujifilm X100S (⇒ lft | rgt) APS-C 16.0 4896 3264 1080/60p - - - -
Fujifilm X20 (⇒ lft | rgt) 2/3 12.0 4000 3000 1080/60p - - - -
Fujifilm X100 (⇒ lft | rgt) APS-C 12.2 4288 2848 720/30p 22.9 12.4 1001 73
Leica V-LUX Typ 114 (⇒ lft | rgt) 1-inch 20.0 5472 3648 4K/30p - - - -
Leica X Typ 113 (⇒ lft | rgt) APS-C 16.1 4928 3264 1080/30p - - - -
Leica D-LUX 6 (⇒ lft | rgt) 1/1.7 10.0 3648 2736 1080/60p - - - -
Panasonic FZ1000 (⇒ lft | rgt) 1-inch 20.0 5472 3648 4K/30p 22.1 11.7 517 64
Panasonic LX100 (⇒ lft | rgt) Four Thirds 12.7 4112 3088 4K/30p 22.3 12.5 553 67
Sony RX100 V (⇒ lft | rgt) 1-inch 20.0 5472 3648 4K/30p 22.8 12.4 586 70
Sony A6000 (⇒ lft | rgt) APS-C 24.0 6000 4000 1080/60p 24.1 13.1 1347 82
Sony RX100 II (⇒ lft | rgt) 1-inch 20.0 5472 3648 1080/60p 22.5 12.4 483 67

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 D-LUX Typ 109 vs Sony RX100 IV

Apart from body and sensor, cameras can and do differ across a range of features. The two cameras under consideration are similar with respect to both having an electronic viewfinder. However, the one in the D-LUX Typ 109 offers a higher resolution than the one in the RX100 IV (2764k vs 2359k dots). The adjacent table lists some of the other core features of the Leica D-LUX Typ 109 and Sony RX100 IV along with similar information for a selection of comparators. If you need more detail on the specs, you can find comprehensive listings, for example, in the dpreview camera hub.

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 D-LUX Typ 109 (⇒ rgt) 2764 no 3.0 921 fixed no 4000 11.0 no YES
Sony RX100 IV (⇒ lft) 2359 no 3.0 1228 tilting no 2000 16.0 10.2 YES
Canon G7 X (⇒ lft | rgt) no no 3.0 1040 tilting YES 2000 6.5 7 YES
Canon G16 (⇒ lft | rgt) optical no 3.0 922 fixed no 4000 2.2 7 YES
Fujifilm X100T (⇒ lft | rgt) 2360 no 3.0 1040 fixed no 4000 6.0 9 no
Fujifilm X30 (⇒ lft | rgt) 2360 no 3.0 920 tilting no 4000 12.0 7 YES
Fujifilm X100S (⇒ lft | rgt) 2360 no 2.8 460 fixed no 4000 6.0 9 no
Fujifilm X20 (⇒ lft | rgt) optical no 2.8 460 fixed no 4000 12.0 7 YES
Fujifilm X100 (⇒ lft | rgt) 1440 no 2.8 460 fixed no 4000 5.0 9 no
Leica V-LUX Typ 114 (⇒ lft | rgt) 2359 no 3.0 921 swivel no 4000 12.0 13.5 YES
Leica X Typ 113 (⇒ lft | rgt) no no 3.0 920 fixed no 2000 5.0 YES no
Leica D-LUX 6 (⇒ lft | rgt) no no 3.0 920 fixed no 4000 11.0 8.5 YES
Panasonic FZ1000 (⇒ lft | rgt) 2359 no 3.0 921 swivel no 4000 12.0 13.5 YES
Panasonic LX100 (⇒ lft | rgt) 2764 no 3.0 921 fixed no 4000 11.0 no YES
Sony RX100 V (⇒ lft | rgt) 2359 no 3.0 1229 tilting no 2000 24.0 10.2 YES
Sony A6000 (⇒ lft | rgt) 1440 no 3.0 922 tilting no 4000 11.0 6 no
Sony RX100 II (⇒ lft | rgt) no no 3.0 1229 tilting no 2000 10.0 15 YES

Both the D-LUX Typ 109 and the RX100 IV have zoom lenses build in. The D-LUX Typ 109 has a 24-75mm f/1.7-2.8 optic and the RX100 IV offers a 24-70mm f/1.8-2.8 (focal lengths in full frame equivalent terms). Hence, the Leica and Sony provide the same view at the wide-angle end, but the Sony has less tele-photo reach at the long end. The D-LUX Typ 109 offers the faster maximum aperture.

The D-LUX Typ 109 is a current model that online retailers, such as amazon, will have in stock. In contrast, the RX100 IV has been discontinued (but it can be found pre-owned on eBay). As a replacement in the same line of cameras, the RX100 IV was succeeded by the Sony RX100 V.

Review summary: Leica D-LUX Typ 109 vs Sony RX100 IV

So what conclusions can be drawn? Is there a clear favorite between the Leica D-LUX Typ 109 and the Sony RX100 IV? The listing below highlights the relative strengths of the two models.


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Arguments in favor of the Leica D-LUX (Typ 109):

  • Better low-light imaging: Features bigger pixels on a larger sensor for better high-ISO images.
  • More detailed viewfinder: Has higher resolution electronic viewfinder (2764k vs 2359k dots).
  • Faster shutter: Has higher mechanical shutter speed (4000/sec vs 2000/sec) to freeze action.
  • Better light gathering: Has a lens with a wider maximum aperture (f/1.7 vs f/1.8).
  • More tele-reach: Has a longer tele-lens for perspective compression and subject magnification.
  • More prestigious: Has the Leica luxury appeal, which ensures a high resale price.
  • More heavily discounted: Has been on the market for longer (launched in September 2014).

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Advantages of the Sony Cyber-shot DSC-RX100 IV:

  • More detail: Has more megapixels (20 vs 12.7MP), which boosts linear resolution by 28%.
  • More detailed LCD: Has a higher resolution rear screen (1228k vs 921k dots).
  • More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
  • Faster burst: Shoots at higher frequency (16 vs 11 flaps/sec) to capture the decisive moment.
  • More compact: Is smaller (102x58mm vs 118x66mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 107g or 26 percent) and is thus easier to take along.
  • Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
  • More affordable: Was released into a lower priced segment (16 percent cheaper at launch).
  • More modern: Was introduced somewhat (8 months) more recently.

If the count of relative strengths (bullet points above) is taken as a measure, the RX100 IV emerges as the winner of the match-up (9 : 7 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.

D-LUX Typ 109 07:09 RX100 IV

In any case, while the specs-based evaluation of cameras is instructive in revealing their potential as photographic tools, it says nothing about, for example, the handling, responsiveness, and overall imaging quality of the D-LUX Typ 109 and the RX100 IV in practical situations. 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. This is why hands-on reviews by experts 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 D-LUX Typ 109 (⇒ rgt) - - 4.5/5 - 4.5/5 2014 1,195 latest check
Sony RX100 IV (⇒ lft) HiRec 85/100 Gold 4/5 4.5/5 4.5/5 2015 999discont. check
Canon G7 X (⇒ lft | rgt) HiRec 77/100 Silver 4.5/5 3.5/5 4.5/5 2014 699discont. check
Canon G16 (⇒ lft | rgt) Rec - 4.5/5 4.5/5 4.5/5 2013 549 latest check
Fujifilm X100T (⇒ lft | rgt) Rec 81/100 Silver 4.5/5 4.5/5 5/5 2014 1,299discont. check
Fujifilm X30 (⇒ lft | rgt) - 76/100 4.5/5 4/5 4.5/5 2014 599 latest check
Fujifilm X100S (⇒ lft | rgt) HiRec 81/100 Gold 4.5/5 4/5 5/5 2013 1,299discont. check
Fujifilm X20 (⇒ lft | rgt) HiRec 77/100 Silver 4.5/5 - 5/5 2013 599discont. check
Fujifilm X100 (⇒ lft | rgt) - 75/100 Silver 4/5 4/5 5/5 2010 1,199discont. check
Leica V-LUX Typ 114 (⇒ lft | rgt) - - - - 5/5 2014 1,349 latest check
Leica X Typ 113 (⇒ lft | rgt) - - 3.5/5 - 4/5 2014 2,295 latest check
Leica D-LUX 6 (⇒ lft | rgt) - - 4/5 - 4/5 2012 699discont. check
Panasonic FZ1000 (⇒ lft | rgt) HiRec 82/100 Gold 4.5/5 4.5/5 4.5/5 2014 899discont. check
Panasonic LX100 (⇒ lft | rgt) HiRec 85/100 Gold 5/5 4/5 5/5 2014 899 latest check
Sony RX100 V (⇒ lft | rgt) HiRec 83/100 Silver 4/5 5/5 4.5/5 2016 999 latest check
Sony A6000 (⇒ lft | rgt) Rec 80/100 Gold 4.5/5 5/5 5/5 2014 599discont. check
Sony RX100 II (⇒ lft | rgt) HiRec 79/100 Silver 4.5/5 5/5 4.5/5 2013 749discont. check

The review scores listed above should be treated with care, though. The ratings are only valid when refering 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. 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 use the search menu below. An an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool. If the camera you are interested in is not available, kindly get in touch, and I will try to locate and add the respective data to the application.

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