Leica V-LUX 5 vs Pentax K-S1

The Leica V-LUX 5 and the Pentax K-S1 are two digital cameras that were officially introduced, respectively, in July 2019 and August 2014. The V-LUX 5 is a fixed lens compact, while the K-S1 is a DSLR. The cameras are based on an one-inch (V-LUX 5) and an APS-C (K-S1) sensor. Both cameras offer a resolution of 20 megapixels.

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

Headline Specifications

Leica V-LUX 5		Pentax K-S1
Fixed lens compact camera		Digital single lens reflex
25-400mm f/2.8-4.0		Pentax K mount lenses
20 MP, 1" Sensor		20 MP, APS-C Sensor
4K/30p Video		1080/30p Video
ISO 125-12,800 (80 - 25,600)		ISO 100-51,200
Electronic viewfinder (2360k dots)		Optical viewfinder
3.0 LCD, 1240k dots		3.0 LCD, 921k dots
Swivel touchscreen		Fixed screen (not touch-sensitive)
12 shutter flaps per second		5.4 shutter flaps per second
Lens-based stabilization		In-body stabilization
350 shots per battery charge		410 shots per battery charge
136 x 97 x 131 mm, 812 g		121 x 93 x 70 mm, 558 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Leica V-LUX 5 and the Pentax K-S1? 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

An illustration of the physical size and weight of the Leica V-LUX 5 and the Pentax K-S1 is provided in the side-by-side display below. 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 size dimensions are rounded to the nearest millimeter.

The K-S1 can be obtained in four different colors (black, grey, orange, white), while the V-LUX 5 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 Pentax K-S1 is notably smaller (15 percent) than the Leica V-LUX 5. In this context, it is worth noting that neither the V-LUX 5 nor the K-S1 are weather-sealed.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the V-LUX 5 has a lens built in, whereas the K-S1 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 V-LUX 5 gets 350 shots out of its BP-DC12 battery, while the K-S1 can take 410 images on a single charge of its D-LI109 power pack. The power pack in the V-LUX 5 can be charged via the USB port, so that it is not always necessary to take the battery charger along when travelling.

The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. 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 (USD)	Street Price
1.		Leica V-LUX 5	136 mm	97 mm	131 mm	812 g	350	n	Jul 2019	1,249
2.		Pentax K-S1	121 mm	93 mm	70 mm	558 g	410	n	Aug 2014	749
3.		Canon SX740	110 mm	64 mm	40 mm	299 g	265	n	Jul 2018	399
4.		Leica D-LUX 7	115 mm	66 mm	65 mm	392 g	300	n	Nov 2018	1,195
5.		Leica C-LUX	113 mm	67 mm	46 mm	340 g	370	n	Jun 2018	1,049
6.		Leica V-LUX Typ 114	137 mm	99 mm	131 mm	830 g	360	n	Sep 2014	1,349
7.		Nikon D5300	125 mm	98 mm	76 mm	480 g	600	n	Oct 2013	799
8.		Panasonic FZ1000 II	136 mm	97 mm	131 mm	810 g	350	n	Feb 2019	899
9.		Panasonic TZ95	112 mm	69 mm	42 mm	327 g	380	n	Feb 2019	449
10.		Panasonic LX100 II	115 mm	66 mm	65 mm	392 g	300	n	Aug 2018	999
11.		Panasonic FZ2000	138 mm	102 mm	135 mm	915 g	350	n	Sep 2016	1,199
12.		Pentax K-S2	123 mm	91 mm	73 mm	678 g	410	Y	Feb 2015	749
13.		Pentax K-500	130 mm	97 mm	71 mm	646 g	710	n	Jun 2013	549
14.		Pentax K-3	131 mm	100 mm	77 mm	800 g	560	Y	Oct 2013	1,299
15.		Sony RX100 VII	102 mm	58 mm	43 mm	302 g	260	n	Jul 2019	1,199
16.		Sony RX100 VI	102 mm	58 mm	43 mm	301 g	240	n	Jun 2018	1,199
17.		Sony A68	143 mm	104 mm	81 mm	610 g	540	n	Nov 2015	699
Notes: 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 naturally be influenced heavily by the price. The retail prices at the time of the camera’s release place the model in the market relative to other models in the producer’s line-up and the competition. 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. 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 V-LUX 5 features an one-inch sensor and the Pentax K-S1 an APS-C sensor. The sensor area in the K-S1 is 216 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.7 and 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Even though the K-S1 has a larger sensor, both cameras offer the same resolution of 20 megapixels. This implies that the K-S1 has a lower pixel density and larger individual pixels (with a pixel pitch of 4.28μm versus 2.41μm for the V-LUX 5), which gives it a potential advantage in terms of light gathering capacity. It should, however, be noted that the V-LUX 5 is much more recent (by 4 years and 10 months) than the K-S1, and its sensor will have benefitted from technological advances during this time that at least partly compensate for the smaller pixel size. Coming back to sensor resolution, it should be mentioned that the K-S1 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The Leica V-LUX 5 has a native sensitivity range from ISO 125 to ISO 12800, which can be extended to ISO 80-25600. The corresponding ISO settings for the Pentax K-S1 are ISO 100 to ISO 51200 (no boost).

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 Model	Sensor Class	Resolution (MP)	Horiz. Pixels	Vert. Pixels	Video Format	DXO Portrait	DXO Landscape	DXO Sports	DXO Overall
1.		Leica V-LUX 5	1-inch	20.0	5472	3648	4K/30p	..	..	..	..
2.		Pentax K-S1	APS-C	20.0	5472	3648	1080/30p	23.5	13.0	1061	78
3.		Canon SX740	1/2.3	20.2	5184	3888	4K/30p	..	..	..	..
4.		Leica D-LUX 7	Four Thirds	16.8	4736	3552	4K/30p	..	..	..	..
5.		Leica C-LUX	1-inch	20.0	5472	3648	4K/30p	..	..	..	..
6.		Leica V-LUX Typ 114	1-inch	20.0	5472	3648	4K/30p	..	..	..	..
7.		Nikon D5300	APS-C	24.0	6000	4000	1080/60p	24.0	13.9	1338	83
8.		Panasonic FZ1000 II	1-inch	20.0	5472	3648	4K/30p	..	..	..	..
9.		Panasonic TZ95	1/2.3	20.2	5184	3888	4K/30p	..	..	..	..
10.		Panasonic LX100 II	Four Thirds	16.8	4736	3552	4K/30p	..	..	..	..
11.		Panasonic FZ2000	1-inch	20.0	5472	3648	4K/30p	..	..	..	..
12.		Pentax K-S2	APS-C	20.0	5472	3648	1080/30p	..	..	..	..
13.		Pentax K-500	APS-C	16.1	4928	3264	1080/30p	23.7	13.1	1087	79
14.		Pentax K-3	APS-C	24.1	6016	4000	1080/60i	23.7	13.4	1216	80
15.		Sony RX100 VII	1-inch	20.0	5472	3648	4K/30p	21.8	12.4	418	63
16.		Sony RX100 VI	1-inch	20.0	5472	3648	4K/30p	..	..	..	..
17.		Sony A68	APS-C	24.0	6000	4000	1080/60i	24.1	13.5	701	79

Many modern cameras are not only capable of taking still images, but can also record movies. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the V-LUX 5 provides a higher video resolution than the K-S1. It can shoot video footage at 4K/30p, while the Pentax is limited to 1080/30p.

Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. For example, the V-LUX 5 has an electronic viewfinder (2360k dots), while the K-S1 has an optical one. Both systems have their advantages, with the electronic viewfinder making it possible to project supplementary shooting information into the framing view, whereas the optical viewfinder offers lag-free viewing and a very clear framing image. The viewfinders of both cameras offer the same field of view (100%), but the viewfinder of the V-LUX 5 has a higher magnification than the one of the K-S1 (0.70x vs 0.63x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The adjacent table lists some of the other core features of the Leica V-LUX 5 and Pentax K-S1 along with similar information for a selection of comparators.

Core Features

		Camera Model	Viewfinder (Type or 000 dots)	Control Panel (yes/no)	LCD Size (inch)	LCD Resolution (000 dots)	LCD Attach- ment	Touch Screen (yes/no)	Mech Shutter Speed	Shutter Flaps (1/sec)	Built-in Flash (yes/no)	Built-in Image Stab
1.		Leica V-LUX 5	2360	n	3.0	1240	swivel	Y	1/4000s	12.0	Y	Y
2.		Pentax K-S1	optical	n	3.0	921	fixed	n	1/6000s	5.4	Y	Y
3.		Canon SX740	none	n	3.0	922	tilting	n	1/3200s	10.0	Y	Y
4.		Leica D-LUX 7	2764	n	3.0	1240	fixed	Y	1/4000s	11.0	n	Y
5.		Leica C-LUX	2330	n	3.0	1240	fixed	Y	1/2000s	10.0	Y	Y
6.		Leica V-LUX Typ 114	2359	n	3.0	921	swivel	n	1/4000s	12.0	Y	Y
7.		Nikon D5300	optical	n	3.2	1037	swivel	n	1/4000s	5.0	Y	n
8.		Panasonic FZ1000 II	2360	n	3.0	1240	swivel	Y	1/4000s	12.0	Y	Y
9.		Panasonic TZ95	2330	n	3.0	1040	tilting	Y	1/2000s	10.0	Y	Y
10.		Panasonic LX100 II	2764	n	3.0	1240	fixed	Y	1/4000s	11.0	n	Y
11.		Panasonic FZ2000	2360	n	3.0	1040	swivel	Y	1/4000s	12.0	Y	Y
12.		Pentax K-S2	optical	n	3.0	921	swivel	n	1/6000s	5.4	Y	Y
13.		Pentax K-500	optical	n	3.0	921	fixed	n	1/6000s	6.0	Y	Y
14.		Pentax K-3	optical	Y	3.2	1037	fixed	n	1/8000s	8.3	Y	Y
15.		Sony RX100 VII	2359	n	3.0	921	tilting	Y	1/2000s	90.0	Y	Y
16.		Sony RX100 VI	2359	n	3.0	1229	tilting	Y	1/2000s	24.0	Y	Y
17.		Sony A68	1440	Y	2.7	460	tilting	n	1/4000s	8.0	Y	Y

One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The V-LUX 5 has a touchscreen, while the K-S1 has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

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, the V-LUX 5 is one of those camera that have an additional 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 V-LUX 5 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.

Concerning the storage of imaging data, both the V-LUX 5 and the K-S1 write their files to SDXC cards. Both cameras can use UHS-I cards, which provide for Ultra High Speed data transfer of up to 104 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 V-LUX 5 and Pentax K-S1 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 Microphone	Internal Speaker	Microphone Port	Headphone Port	HDMI Port	USB Port	WiFi Support	NFC Support	Bluetooth Support
1.		Leica V-LUX 5	Y	stereo	mono	-	-	micro	2.0	Y	-	Y
2.		Pentax K-S1	Y	stereo	mono	-	-	micro	2.0	-	-	-
3.		Canon SX740	-	stereo	mono	-	-	micro	2.0	Y	-	Y
4.		Leica D-LUX 7	Y	stereo	mono	-	-	micro	2.0	Y	-	Y
5.		Leica C-LUX	-	stereo	mono	-	-	micro	2.0	Y	-	-
6.		Leica V-LUX Typ 114	Y	stereo	mono	Y	-	micro	2.0	Y	Y	-
7.		Nikon D5300	Y	stereo	mono	Y	-	mini	2.0	Y	-	-
8.		Panasonic FZ1000 II	Y	stereo	mono	Y	-	micro	2.0	Y	-	Y
9.		Panasonic TZ95	-	stereo	mono	-	-	micro	2.0	Y	-	Y
10.		Panasonic LX100 II	Y	stereo	mono	-	-	micro	2.0	Y	-	Y
11.		Panasonic FZ2000	Y	stereo	mono	Y	Y	micro	2.0	Y	-	-
12.		Pentax K-S2	Y	mono	mono	Y	-	micro	2.0	Y	Y	-
13.		Pentax K-500	Y	mono	mono	-	-	-	2.0	-	-	-
14.		Pentax K-3	Y	mono	mono	Y	Y	mini	3.0	-	-	-
15.		Sony RX100 VII	-	stereo	mono	Y	-	micro	2.0	Y	Y	Y
16.		Sony RX100 VI	-	stereo	mono	-	-	micro	2.0	Y	Y	Y
17.		Sony A68	Y	stereo	mono	Y	-	micro	2.0	-	-	-

It is notable that the V-LUX 5 offers wifi support, while the K-S1 does not. Wifi can be a very convenient means to transfer image data to an off-camera location.

The V-LUX 5 is a recent model that features in the current product line-up of Leica. In contrast, the K-S1 has been discontinued (but can be found pre-owned on eBay). As a replacement in the same line of cameras, the K-S1 was succeeded by the Pentax K-S2. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Leica and Pentax websites.

Review summary

So what is the bottom line? Which of the two cameras – the Leica V-LUX 5 or the Pentax K-S1 – has the upper hand? Is one clearly better than the other? Below is a summary of the relative strengths of each of the two contestants.

Advantages of the Leica V-LUX 5:

• Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
• Better video: Provides higher definition movie capture (4K/30p vs 1080/30p).
• More framing info: Has an electronic viewfinder that displays shooting data.
• Larger viewfinder image: Features a viewfinder with a higher magnification (0.70x vs 0.63x).
• More detailed LCD: Has a higher resolution rear screen (1240k vs 921k dots).
• More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
• Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
• More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
• Faster burst: Shoots at higher frequency (12 vs 5.4 flaps/sec) to capture the decisive moment.
• Less disturbing: Has an electronic shutter option for completely silent shooting.
• Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
• Ready to shoot: Comes with a built-in lens, while the K-S1 requires a separate lens.
• Easier travel charging: Can be conveniently charged via its USB port.
• Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
• Easier wireless transfer: Supports Bluetooth for image sharing without cables.
• More prestigious: Has the Leica luxury appeal, which ensures a high resale price.
• More modern: Reflects 4 years and 10 months of technical progress since the K-S1 launch.

Arguments in favor of the Pentax K-S1:

• Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
• Brighter framing: Features an optical viewfinder for clear, lag-free composition.
• Faster shutter: Has higher mechanical shutter speed (1/6000s vs 1/4000s) to freeze action.
• More flexible: Makes it possible to change lenses and thus to use specialty optics.
• More compact: Is smaller (121x93mm vs 136x97mm) and will fit more readily into a bag.
• Longer lasting: Gets more shots (410 versus 350) out of a single battery charge.
• More heavily discounted: Has been around for much longer (launched in August 2014).

If the count of individual advantages (bullet points above) is taken as a guide, the V-LUX 5 is the clear winner of the match-up (17 : 7 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 sports photographer will view the differences between cameras in a way that diverges from the perspective of a street photog, and a person interested in family portraits has distinct needs from a landscape 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 V-LUX 5 and the Pentax K-S1 place the cameras among the top in their class? Find out in the latest Best Superzoom Camera and Best DSLR Camera listings whether the two cameras rank among the cream of the crop.

In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it remains incomplete and does no justice, for example, to the way the V-LUX 5 or the K-S1 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.

Expert reviews

This is where reviews by experts come in. The table below provides a synthesis of the camera assessments of some of the best known photo-gear review sites (amateurphotographer [AP], cameralabs [CL], 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	DPR   score	EPZ   score	PB   score	Camera Launch	Launch Price (USD)	Street Price
1.		Leica V-LUX 5	..	..	..	4/5	4/5	Jul 2019	1,249
2.		Pentax K-S1	4/5	..	..	4.5/5	4/5	Aug 2014	749
3.		Canon SX740	..	+	..	4/5	4/5	Jul 2018	399
4.		Leica D-LUX 7	..	..	..	..	4.5/5	Nov 2018	1,195
5.		Leica C-LUX	..	..	..	4.5/5	4/5	Jun 2018	1,049
6.		Leica V-LUX Typ 114	..	..	..	..	5/5	Sep 2014	1,349
7.		Nikon D5300	4/5	+ +	79/100	4.5/5	4.5/5	Oct 2013	799
8.		Panasonic FZ1000 II	..	..	83/100	4.5/5	4.5/5	Feb 2019	899
9.		Panasonic TZ95	..	+ +	..	4.5/5	..	Feb 2019	449
10.		Panasonic LX100 II	4.5/5	+	82/100	4.5/5	4.5/5	Aug 2018	999
11.		Panasonic FZ2000	..	+	82/100	4.5/5	5/5	Sep 2016	1,199
12.		Pentax K-S2	4.5/5	..	..	5/5	4.5/5	Feb 2015	749
13.		Pentax K-500	..	..	..	4.5/5	4.5/5	Jun 2013	549
14.		Pentax K-3	4/5	..	83/100	5/5	5/5	Oct 2013	1,299
15.		Sony RX100 VII	4.5/5	..	..	4/5	5/5	Jul 2019	1,199
16.		Sony RX100 VI	4.5/5	+ +	83/100	4/5	4.5/5	Jun 2018	1,199
17.		Sony A68	3/5	..	..	4/5	4/5	Nov 2015	699
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

Care should be taken when interpreting the review scores above, though. The assessments were made in relation to similar cameras of the same technological generation. 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. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

Other camera comparisons

Did this review help to inform your camera decision process? In case you are interested in seeing how other cameras pair up, just make a corresponding selection in the search boxes below. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.

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Specifications: Leica V-LUX 5 vs Pentax K-S1

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.

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