Leica V-LUX 5 vs Pentax K-S2

The Leica V-LUX 5 and the Pentax K-S2 are two digital cameras that were officially introduced, respectively, in July 2019 and February 2015. The V-LUX 5 is a fixed lens compact, while the K-S2 is a DSLR. The cameras are based on an one-inch (V-LUX 5) and an APS-C (K-S2) 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-S2
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		Swivel screen (not touch-sensitive)
12 shutter flaps per second		5.4 shutter flaps per second
Lens-based stabilization		In-body stabilization
not weather sealed		Weathersealed body
350 shots per battery charge		410 shots per battery charge
136 x 97 x 131 mm, 812 g		123 x 91 x 73 mm, 678 g

Check V-LUX 5 price at
amazon.com
Check K-S2 offers at
ebay.com

Going beyond this snapshot of core features and characteristics, what are the differences between the Leica V-LUX 5 and the Pentax K-S2? 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 Leica V-LUX 5 and the Pentax K-S2 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.

The K-S2 can be obtained in six different colors (black, grey, pink, orange, green, 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-S2 is notably smaller (15 percent) than the Leica V-LUX 5. It is noteworthy in this context that the K-S2 is splash and dust-proof, while the V-LUX 5 does not feature any corresponding weather-sealing.

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-S2 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 Leica BP-DC12 battery, while the K-S2 can take 410 images on a single charge of its Pentax 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 table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. If you would like to visualize and compare a different camera combination, you can navigate to the CAM-parator app and make your selection from a broad list of cameras 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.		Leica V-LUX 5	136 mm	97 mm	131 mm	812 g	350	n	Jul 2019	1,249	amazon.com
2.		Pentax K-S2	123 mm	91 mm	73 mm	678 g	410	Y	Feb 2015	749	ebay.com
3.		Canon SX740	110 mm	64 mm	40 mm	299 g	265	n	Jul 2018	399	amazon.com
4.		Leica D-LUX 7	115 mm	66 mm	65 mm	392 g	300	n	Nov 2018	1,195	ebay.com
5.		Leica C-LUX	113 mm	67 mm	46 mm	340 g	370	n	Jun 2018	1,049	ebay.com
6.		Leica V-LUX Typ 114	137 mm	99 mm	131 mm	830 g	360	n	Sep 2014	1,349	ebay.com
7.		Panasonic FZ1000 II	136 mm	97 mm	131 mm	810 g	350	n	Feb 2019	899	amazon.com
8.		Panasonic TZ95	112 mm	69 mm	42 mm	327 g	380	n	Feb 2019	449	ebay.com
9.		Panasonic LX100 II	115 mm	66 mm	65 mm	392 g	300	n	Aug 2018	999	ebay.com
10.		Panasonic FZ2000	138 mm	102 mm	135 mm	915 g	350	n	Sep 2016	1,199	amazon.com
11.		Pentax KP	132 mm	101 mm	76 mm	703 g	390	Y	Jan 2017	1,099	ebay.com
12.		Pentax K-70	126 mm	93 mm	74 mm	688 g	410	Y	Jun 2016	649	ebay.com
13.		Pentax K-3 II	131 mm	100 mm	77 mm	800 g	720	Y	Apr 2015	1,099	ebay.com
14.		Pentax K-S1	121 mm	93 mm	70 mm	558 g	410	n	Aug 2014	749	ebay.com
15.		Pentax K-3	131 mm	100 mm	77 mm	800 g	560	Y	Oct 2013	1,299	ebay.com
16.		Sony RX100 VII	102 mm	58 mm	43 mm	302 g	260	n	Jul 2019	1,199	amazon.com
17.		Sony RX100 VI	102 mm	58 mm	43 mm	301 g	240	n	Jun 2018	1,199	ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
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Any camera decision will naturally be influenced heavily by the price. The manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. 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 size of the sensor inside a digital camera is one of the key determinants of image quality. A large sensor will tend to have larger individual pixels that provide better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixel-units 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 Leica V-LUX 5 features an one-inch sensor and the Pentax K-S2 an APS-C sensor. The sensor area in the K-S2 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-S2 has a larger sensor, both cameras offer the same resolution of 20 megapixels. This implies that the K-S2 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 4 months) than the K-S2, 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-S2 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-S2 are ISO 100 to ISO 51200 (no boost).

In terms of underlying technology, the V-LUX 5 is build around a BSI-CMOS sensor, while the K-S2 uses a CMOS imager. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.

For many cameras, data on sensor performance has been reported by DXO Mark. 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.		Leica V-LUX 5	1-inch	20.0	5472	3648	4K/30p	22.2	12.4	584	65
2.		Pentax K-S2	APS-C	20.0	5472	3648	1080/30p	23.6	12.9	1514	79
3.		Canon SX740	1/2.3	20.2	5184	3888	4K/30p	20.6	12.1	1050	51
4.		Leica D-LUX 7	Four Thirds	16.8	4736	3552	4K/30p	22.9	12.8	1002	72
5.		Leica C-LUX	1-inch	20.0	5472	3648	4K/30p	22.1	12.3	481	64
6.		Leica V-LUX Typ 114	1-inch	20.0	5472	3648	4K/30p	21.6	11.7	127	60
7.		Panasonic FZ1000 II	1-inch	20.0	5472	3648	4K/30p	22.1	12.4	546	65
8.		Panasonic TZ95	1/2.3	20.2	5184	3888	4K/30p	20.7	12.2	1103	52
9.		Panasonic LX100 II	Four Thirds	16.8	4736	3552	4K/30p	22.8	12.7	979	72
10.		Panasonic FZ2000	1-inch	20.0	5472	3648	4K/30p	23.0	12.6	538	70
11.		Pentax KP	APS-C	24.1	6016	4000	1080/60i	23.9	13.2	1699	81
12.		Pentax K-70	APS-C	24.0	6000	4000	1080/60i	23.8	13.1	1639	80
13.		Pentax K-3 II	APS-C	24.1	6016	4000	1080/60i	23.6	13.6	1106	80
14.		Pentax K-S1	APS-C	20.0	5472	3648	1080/30p	23.5	13.0	1061	78
15.		Pentax K-3	APS-C	24.1	6016	4000	1080/60i	23.7	13.4	1216	80
16.		Sony RX100 VII	1-inch	20.0	5472	3648	4K/30p	21.8	12.4	418	63
17.		Sony RX100 VI	1-inch	20.0	5472	3648	4K/30p	22.1	12.3	478	64
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 also of capturing video footage. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the V-LUX 5 provides a higher video resolution than the K-S2. 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-S2 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-S2 (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 table below summarizes some of the other core capabilities of the Leica V-LUX 5 and Pentax K-S2 in connection with corresponding information for a sample of similar cameras.

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.		Leica V-LUX 5	2360	n	3.0 / 1240	swivel	Y	1/4000s	12.0/s	Y	Y
2.		Pentax K-S2	optical	n	3.0 / 921	swivel	n	1/6000s	5.4/s	Y	Y
3.		Canon SX740	none	n	3.0 / 922	tilting	n	1/3200s	10.0/s	Y	Y
4.		Leica D-LUX 7	2764	n	3.0 / 1240	fixed	Y	1/4000s	11.0/s	n	Y
5.		Leica C-LUX	2330	n	3.0 / 1240	fixed	Y	1/2000s	10.0/s	Y	Y
6.		Leica V-LUX Typ 114	2359	n	3.0 / 921	swivel	n	1/4000s	12.0/s	Y	Y
7.		Panasonic FZ1000 II	2360	n	3.0 / 1240	swivel	Y	1/4000s	12.0/s	Y	Y
8.		Panasonic TZ95	2330	n	3.0 / 1040	tilting	Y	1/2000s	10.0/s	Y	Y
9.		Panasonic LX100 II	2764	n	3.0 / 1240	fixed	Y	1/4000s	11.0/s	n	Y
10.		Panasonic FZ2000	2360	n	3.0 / 1040	swivel	Y	1/4000s	12.0/s	Y	Y
11.		Pentax KP	optical	n	3.0 / 921	tilting	n	1/6000s	7.0/s	Y	Y
12.		Pentax K-70	optical	n	3.0 / 921	swivel	n	1/6000s	6.0/s	Y	Y
13.		Pentax K-3 II	optical	Y	3.2 / 1037	fixed	n	1/8000s	8.3/s	n	Y
14.		Pentax K-S1	optical	n	3.0 / 921	fixed	n	1/6000s	5.4/s	Y	Y
15.		Pentax K-3	optical	Y	3.2 / 1037	fixed	n	1/8000s	8.3/s	Y	Y
16.		Sony RX100 VII	2359	n	3.0 / 921	tilting	Y	1/2000s	90.0/s	Y	Y
17.		Sony RX100 VI	2359	n	3.0 / 1229	tilting	Y	1/2000s	24.0/s	Y	Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

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-S2 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 and the Pentax K-S2 both have 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-S2 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-S2 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.		Leica V-LUX 5	Y	stereo / mono	-	-	micro	2.0	Y	-	Y
2.		Pentax K-S2	Y	mono / mono	Y	-	micro	2.0	Y	Y	-
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.		Panasonic FZ1000 II	Y	stereo / mono	Y	-	micro	2.0	Y	-	Y
8.		Panasonic TZ95	-	stereo / mono	-	-	micro	2.0	Y	-	Y
9.		Panasonic LX100 II	Y	stereo / mono	-	-	micro	2.0	Y	-	Y
10.		Panasonic FZ2000	Y	stereo / mono	Y	Y	micro	2.0	Y	-	-
11.		Pentax KP	Y	stereo / mono	Y	-	-	2.0	Y	-	-
12.		Pentax K-70	Y	stereo / mono	Y	-	mini	2.0	Y	-	-
13.		Pentax K-3 II	Y	mono / mono	Y	Y	mini	3.0	-	-	-
14.		Pentax K-S1	Y	stereo / mono	-	-	micro	2.0	-	-	-
15.		Pentax K-3	Y	mono / mono	Y	Y	mini	3.0	-	-	-
16.		Sony RX100 VII	-	stereo / mono	Y	-	micro	2.0	Y	Y	Y
17.		Sony RX100 VI	-	stereo / mono	-	-	micro	2.0	Y	Y	Y

It is notable that the K-S2 has a microphone port, which can help to improve the quality of audio recordings by attaching an external microphone. The V-LUX 5 does not feature such a mic input.

The V-LUX 5 is a recent model that features in the current product line-up of Leica. In contrast, the K-S2 has been discontinued (but can be found pre-owned on ebay). There has not been a direct replacement model for the K-S2 from Pentax. Further information on the features and operation of the V-LUX 5 and K-S2 can be found, respectively, in the Leica V-LUX 5 Manual (free pdf) or the online Pentax K-S2 Manual.

Review summary

So what is the bottom line? Is there a clear favorite between the Leica V-LUX 5 and the Pentax K-S2? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.

Reasons to prefer 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).
• Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
• 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.
• Ready to shoot: Comes with a built-in lens, while the K-S2 requires a separate lens.
• Easier travel charging: Can be conveniently charged via its USB port.
• 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 4 months of technical progress since the K-S2 launch.

Advantages of the Pentax K-S2:

• Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
• Better sound: Can connect to an external microphone for higher quality sound recording.
• 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 (123x91mm vs 136x97mm) and will fit more readily into a bag.
• Longer lasting: Gets more shots (410 versus 350) out of a single battery charge.
• Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
• Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
• More heavily discounted: Has been around for much longer (launched in February 2015).

If the count of relative strengths (bullet points above) is taken as a measure, the V-LUX 5 emerges as the winner of the contest (13 : 10 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 Leica V-LUX 5 and the Pentax K-S2 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 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 V-LUX 5 or the K-S2. 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 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.

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.		Leica V-LUX 5	..	..	..	..	4/5	4/5	Jul 2019	1,249	amazon.com
2.		Pentax K-S2	4.5/5	..	..	..	5/5	4.5/5	Feb 2015	749	ebay.com
3.		Canon SX740	..	+	3.5/5	..	4/5	4/5	Jul 2018	399	amazon.com
4.		Leica D-LUX 7	..	..	..	..	..	4.5/5	Nov 2018	1,195	ebay.com
5.		Leica C-LUX	..	..	3.5/5	..	4.5/5	4/5	Jun 2018	1,049	ebay.com
6.		Leica V-LUX Typ 114	..	..	..	..	..	5/5	Sep 2014	1,349	ebay.com
7.		Panasonic FZ1000 II	..	..	..	83/100	4.5/5	4.5/5	Feb 2019	899	amazon.com
8.		Panasonic TZ95	..	+ +	..	..	4.5/5	..	Feb 2019	449	ebay.com
9.		Panasonic LX100 II	4.5/5	+	4.2/5	82/100	4.5/5	4.5/5	Aug 2018	999	ebay.com
10.		Panasonic FZ2000	..	+	..	82/100	4.5/5	5/5	Sep 2016	1,199	amazon.com
11.		Pentax KP	4/5	..	3/5	82/100	5/5	4.5/5	Jan 2017	1,099	ebay.com
12.		Pentax K-70	4.5/5	..	4/5	79/100	4.5/5	4.5/5	Jun 2016	649	ebay.com
13.		Pentax K-3 II	4.5/5	..	..	..	5/5	5/5	Apr 2015	1,099	ebay.com
14.		Pentax K-S1	4/5	..	..	..	4.5/5	4/5	Aug 2014	749	ebay.com
15.		Pentax K-3	4/5	..	..	83/100	5/5	5/5	Oct 2013	1,299	ebay.com
16.		Sony RX100 VII	4.5/5	..	4/5	..	4/5	5/5	Jul 2019	1,199	amazon.com
17.		Sony RX100 VI	4.5/5	+ +	..	83/100	4/5	4.5/5	Jun 2018	1,199	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. Hence, a score should always be seen in the context of the camera's market launch date and its price, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

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Other camera comparisons

Did this review help to inform your camera decision process? If you would like to see a different side-by-side camera review, just use the search menu 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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