Leica M10-R vs Pentax K-S1
The Leica M10-R and the Pentax K-S1 are two digital cameras that were officially introduced, respectively, in July 2020 and August 2014. The M10-R is a rangefinder-focusing mirrorless camera, while the K-S1 is a DSLR. The cameras are based on a full frame (M10-R) and an APS-C (K-S1) sensor. The Leica has a resolution of 40.9 megapixels, whereas the Pentax provides 20 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 M10-R 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.
An illustration of the physical size and weight of the Leica M10-R 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 perspectives from the front, the top, and the back are available. All size dimensions are rounded to the nearest millimeter.
The M10-R can be obtained in two different colors (black, silver), while the K-S1 is available in four color-versions (black, grey, orange, white).
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 somewhat larger (1 percent) than the Leica M10-R. However, the K-S1 is markedly lighter (15 percent) than the M10-R. It is worth mentioning in this context that the M10-R is splash and dust resistant, while the K-S1 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.
The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. 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.
|1.||Leica M10-R||139 mm||80 mm||39 mm||660 g||210||Y||Jul 2020||8,295||amazon.com|
|2.||Pentax K-S1||121 mm||93 mm||70 mm||558 g||410||n||Aug 2014||749||ebay.com|
|3.||Hasselblad X1D||150 mm||98 mm||71 mm||725 g||..||Y||Jun 2016||8,995||ebay.com|
|4.||Leica M11||139 mm||80 mm||39 mm||640 g||700||Y||Jan 2022||8,995||amazon.com|
|5.||Leica Q2||130 mm||80 mm||92 mm||718 g||370||Y||Mar 2019||4,995||amazon.com|
|6.||Leica M-E Typ 240||139 mm||80 mm||42 mm||680 g||..||Y||Jun 2019||3,999||amazon.com|
|7.||Leica M10-P||139 mm||80 mm||39 mm||660 g||210||Y||Aug 2018||7,995||amazon.com|
|8.||Leica M10||139 mm||80 mm||39 mm||660 g||210||Y||Jan 2017||6,595||ebay.com|
|9.||Leica X-U Typ 113||140 mm||79 mm||88 mm||635 g||450||Y||Jan 2016||2,950||ebay.com|
|10.||Leica M Typ 262||139 mm||80 mm||42 mm||680 g||..||Y||Nov 2015||5,195||ebay.com|
|11.||Leica M Typ 240||139 mm||80 mm||42 mm||680 g||..||Y||Sep 2012||6,950||ebay.com|
|12.||Leica M9||139 mm||80 mm||37 mm||585 g||..||n||Sep 2009||7,999||ebay.com|
|13.||Nikon D5300||125 mm||98 mm||76 mm||480 g||600||n||Oct 2013||799||ebay.com|
|14.||Pentax K-S2||123 mm||91 mm||73 mm||678 g||410||Y||Feb 2015||749||ebay.com|
|15.||Pentax K-500||130 mm||97 mm||71 mm||646 g||710||n||Jun 2013||549||ebay.com|
|16.||Pentax K-3||131 mm||100 mm||77 mm||800 g||560||Y||Oct 2013||1,299||ebay.com|
|17.||Sony A68||143 mm||104 mm||81 mm||610 g||540||n||Nov 2015||699||ebay.com|
|Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.|
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 K-S1 was launched at a markedly lower price (by 91 percent) than the M10-R, which puts it into a different market segment. 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 sensor inside a digital camera is one of the key determinants 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. Further, a large sensor camera will give the photographer additional creative options when using shallow depth-of-field to isolate a subject from its 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 M10-R features a full frame sensor and the Pentax K-S1 an APS-C sensor. The sensor area in the K-S1 is 57 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.0 and 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
With 40.9MP, the M10-R offers a higher resolution than the K-S1 (20MP), but the M10-R nevertheless has larger individual pixels (pixel pitch of 4.57μm versus 4.28μm for the K-S1) due to its larger sensor. Moreover, the M10-R is a much more recent model (by 5 years and 10 months) than the K-S1, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixels. Coming back to sensor resolution, it should be mentioned that neither of the two cameras has an anti-alias filter installed, so they are able to capture all the detail the sensor resolves.
The resolution advantage of the Leica M10-R implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the M10-R for good quality output (200 dots per inch) amounts to 39.3 x 26 inches or 99.9 x 66 cm, for very good quality (250 dpi) 31.5 x 20.8 inches or 79.9 x 52.8 cm, and for excellent quality (300 dpi) 26.2 x 17.3 inches or 66.6 x 44 cm. The corresponding values for the Pentax K-S1 are 27.4 x 18.2 inches or 69.5 x 46.3 cm for good quality, 21.9 x 14.6 inches or 55.6 x 37.1 cm for very good quality, and 18.2 x 12.2 inches or 46.3 x 30.9 cm for excellent quality prints.
The Leica M10-R has a native sensitivity range from ISO 100 to ISO 50000. The corresponding ISO settings for the Pentax K-S1 are ISO 100 to ISO 51200 (no boost).
Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.
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 adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.
|1.||Leica M10-R||Full Frame||40.9||7864||5200||none||25.3||14.3||2924||95|
|3.||Hasselblad X1D||Medium Format||51.3||8272||6200||1080/25p||26.2||14.8||4489||102|
|4.||Leica M11||Full Frame||60.3||9528||6328||none||26.3||14.8||3376||100|
|5.||Leica Q2||Full Frame||46.7||8368||5584||4K/30p||26.4||13.5||2491||96|
|6.||Leica M-E Typ 240||Full Frame||23.7||5952||3976||1080/25p||25.2||14.2||2821||94|
|7.||Leica M10-P||Full Frame||23.8||5952||3992||none||25.1||14.1||2739||93|
|8.||Leica M10||Full Frame||23.8||5952||3992||none||24.4||13.2||2133||86|
|9.||Leica X-U Typ 113||APS-C||16.1||4928||3264||1080/30p||23.8||13.0||1614||80|
|10.||Leica M Typ 262||Full Frame||23.7||5952||3976||none||24.8||13.7||2478||90|
|11.||Leica M Typ 240||Full Frame||23.7||5952||3976||1080/25p||24.0||13.3||1860||84|
|12.||Leica M9||Full Frame||18.1||5212||3472||none||22.5||11.7||884||69|
|Note: DXO values in italics represent estimates based on sensor size and age.|
Many modern cameras cannot only take still pictures, but also record videos. The K-S1 indeed provides for movie recording, while the M10-R does not. The highest resolution format that the K-S1 can use is 1080/30p.
Beyond body and sensor, cameras can and do differ across a range of features. The M10-R and the K-S1 are similar in the sense that both have an optical viewfinder. The latter is useful for getting a clear image for framing even in brightly lit environments. The viewfinders of both cameras offer the same field of view (100%), but the viewfinder of the M10-R has a higher magnification than the one of the K-S1 (0.73x 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 M10-R and Pentax K-S1 in connection with corresponding information for a sample of similar cameras.
|1.||Leica M10-R||optical||n||3.0 / 1037||fixed||Y||1/4000s||4.5/s||n||n|
|2.||Pentax K-S1||optical||n||3.0 / 921||fixed||n||1/6000s||5.4/s||Y||Y|
|3.||Hasselblad X1D||2360||n||3.0 / 920||fixed||Y||1/2000s||2.3/s||n||n|
|4.||Leica M11||optical||n||3.0 / 2333||fixed||Y||1/4000s||4.5/s||n||n|
|5.||Leica Q2||3680||n||3.0 / 1040||fixed||Y||1/2000s||20.0/s||n||Y|
|6.||Leica M-E Typ 240||optical||n||3.0 / 920||fixed||n||1/4000s||3.0/s||n||n|
|7.||Leica M10-P||optical||n||3.0 / 1037||fixed||Y||1/4000s||5.0/s||n||n|
|8.||Leica M10||optical||n||3.0 / 1037||fixed||n||1/4000s||5.0/s||n||n|
|9.||Leica X-U Typ 113||optional||n||3.0 / 920||fixed||n||1/2000s||5.0/s||Y||n|
|10.||Leica M Typ 262||optical||n||3.0 / 921||fixed||n||1/4000s||3.0/s||n||n|
|11.||Leica M Typ 240||optical||n||3.0 / 920||fixed||n||1/4000s||3.0/s||n||n|
|12.||Leica M9||optical||n||2.5 / 230||fixed||n||1/4000s||2.0/s||n||n|
|13.||Nikon D5300||optical||n||3.2 / 1037||swivel||n||1/4000s||5.0/s||Y||n|
|14.||Pentax K-S2||optical||n||3.0 / 921||swivel||n||1/6000s||5.4/s||Y||Y|
|15.||Pentax K-500||optical||n||3.0 / 921||fixed||n||1/6000s||6.0/s||Y||Y|
|16.||Pentax K-3||optical||Y||3.2 / 1037||fixed||n||1/8000s||8.3/s||Y||Y|
|17.||Sony A68||1440||Y||2.7 / 460||tilting||n||1/4000s||8.0/s||Y||Y|
|Notes: *) 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 M10-R 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 Leica M10-R 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 M10-R 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.
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 M10-R and Pentax K-S1 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Mic / Speaker
|1.||Leica M10-R||Y||- / -||-||-||-||-||Y||-||-|
|2.||Pentax K-S1||Y||stereo / mono||-||-||micro||2.0||-||-||-|
|3.||Hasselblad X1D||Y||stereo / mono||Y||Y||mini||3.0||Y||-||-|
|4.||Leica M11||Y||- / -||-||-||-||3.2||Y||-||Y|
|5.||Leica Q2||Y||stereo / mono||-||-||-||-||Y||-||Y|
|6.||Leica M-E Typ 240||Y||mono / -||-||-||-||2.0||-||-||-|
|7.||Leica M10-P||Y||- / -||-||-||-||-||Y||-||-|
|8.||Leica M10||Y||- / -||-||-||-||-||Y||-||-|
|9.||Leica X-U Typ 113||Y||stereo / mono||-||-||-||2.0||-||-||-|
|10.||Leica M Typ 262||Y||- / -||-||-||-||2.0||-||-||-|
|11.||Leica M Typ 240||Y||stereo / mono||-||-||-||2.0||-||-||-|
|12.||Leica M9||Y||- / -||-||-||-||2.0||-||-||-|
|13.||Nikon D5300||Y||stereo / mono||Y||-||mini||2.0||Y||-||-|
|14.||Pentax K-S2||Y||mono / mono||Y||-||micro||2.0||Y||Y||-|
|15.||Pentax K-500||Y||mono / mono||-||-||-||2.0||-||-||-|
|16.||Pentax K-3||Y||mono / mono||Y||Y||mini||3.0||-||-||-|
|17.||Sony A68||Y||stereo / mono||Y||-||micro||2.0||-||-||-|
It is notable that the M10-R 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 M10-R 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 features and operation of the M10-R and K-S1 can be found, respectively, in the Leica M10-R Manual (free pdf) or the online Pentax K-S1 Manual.
So what conclusions can be drawn? Which of the two cameras – the Leica M10-R or the Pentax K-S1 – has the upper hand? Is one clearly better than the other? The listing below highlights the relative strengths of the two models.
Reasons to prefer the Leica M10-R:
- More detail: Offers more megapixels (40.9 vs 20MP) with a 43% higher linear resolution.
- Better image quality: Features a larger and more technologically advanced imaging sensor.
- Richer colors: The sensor size advantage translates into images with better, more accurate colors.
- More dynamic range: Larger sensor captures a wider spectrum of light and dark details.
- Better low-light sensitivity: Larger sensor produces good images even in poorly lit environments.
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.73x vs 0.63x).
- More detailed LCD: Has a higher resolution rear screen (1037k vs 921k dots).
- Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
- Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
- More prestigious: Has the Leica luxury appeal, which ensures a high resale price.
- More modern: Reflects 5 years and 10 months of technical progress since the K-S1 launch.
Advantages of the Pentax K-S1:
- Broader imaging potential: Can capture not only stills but also 1080/30p video.
- Faster shutter: Has higher mechanical shutter speed (1/6000s vs 1/4000s) to freeze action.
- Faster burst: Shoots at higher frequency (5.4 vs 4.5 flaps/sec) to capture the decisive moment.
- Less heavy: Has a lower weight (by 102g or 15 percent) and is thus easier to take along.
- Longer lasting: Gets more shots (410 versus 210) out of a single battery charge.
- Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
- Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
- More affordable: Was introduced into a lower priced category (91 percent cheaper at launch).
- 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 M10-R is the clear winner of the match-up (13 : 9 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.
In any case, while the specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it remains incomplete and does no justice, for example, to the way the M10-R 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.
This is why expert reviews are important. 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 M10-R||4.5/5||..||4/5||..||..||4/5||Jul 2020||8,295||amazon.com|
|2.||Pentax K-S1||4/5||..||..||..||4.5/5||4/5||Aug 2014||749||ebay.com|
|3.||Hasselblad X1D||..||o||..||81/100||..||4/5||Jun 2016||8,995||ebay.com|
|4.||Leica M11||4.5/5||..||4.5/5||..||4.5/5||4.5/5||Jan 2022||8,995||amazon.com|
|5.||Leica Q2||..||..||4.5/5||84/100||4.5/5||4/5||Mar 2019||4,995||amazon.com|
|6.||Leica M-E Typ 240||..||..||..||..||..||..||Jun 2019||3,999||amazon.com|
|7.||Leica M10-P||..||..||3/5||..||..||4/5||Aug 2018||7,995||amazon.com|
|8.||Leica M10||4.5/5||..||..||..||4/5||4.5/5||Jan 2017||6,595||ebay.com|
|9.||Leica X-U Typ 113||3.5/5||..||..||..||..||3.5/5||Jan 2016||2,950||ebay.com|
|10.||Leica M Typ 262||..||..||..||..||..||..||Nov 2015||5,195||ebay.com|
|11.||Leica M Typ 240||4/5||..||..||..||4/5||..||Sep 2012||6,950||ebay.com|
|12.||Leica M9||..||..||..||..||4.5/5||..||Sep 2009||7,999||ebay.com|
|13.||Nikon D5300||4/5||+ +||..||79/100||4.5/5||4.5/5||Oct 2013||799||ebay.com|
|14.||Pentax K-S2||4.5/5||..||..||..||5/5||4.5/5||Feb 2015||749||ebay.com|
|15.||Pentax K-500||..||..||..||..||4.5/5||4.5/5||Jun 2013||549||ebay.com|
|16.||Pentax K-3||4/5||..||..||83/100||5/5||5/5||Oct 2013||1,299||ebay.com|
|17.||Sony A68||3/5||..||..||..||4/5||4/5||Nov 2015||699||ebay.com|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
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 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 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.
- Canon 6D vs Leica M10-R
- Canon G7 X Mark III vs Leica M10-R
- Fujifilm XF10 vs Pentax K-S1
- Leica M-E Typ 240 vs Leica M10-R
- Leica M10-R vs Nikon D850
- Leica M10-R vs Nikon Z50
- Leica M10-R vs Sony A6000
- Nikon 1 J5 vs Pentax K-S1
- Nikon Z50 vs Pentax K-S1
- Panasonic G90 vs Pentax K-S1
- Panasonic G95 vs Pentax K-S1
- Pentax K-S1 vs Sony A6100
Specifications: Leica M10-R 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.
|Camera Model||Leica M10-R||Pentax K-S1|
|Camera Type||Rangefinder camera||Digital single lens reflex|
|Camera Lens||Leica M mount lenses||Pentax K mount lenses|
|Launch Date||July 2020||August 2014|
|Launch Price||USD 8,295||USD 749|
|Sensor Specs||Leica M10-R||Pentax K-S1|
|Sensor Format||Full Frame Sensor||APS-C Sensor|
|Sensor Size||35.8 x 23.9 mm||23.5 x 15.6 mm|
|Sensor Area||855.62 mm2||366.6 mm2|
|Sensor Diagonal||43 mm||28.2 mm|
|Sensor Resolution||40.9 Megapixels||20 Megapixels|
|Image Resolution||7864 x 5200 pixels||5472 x 3648 pixels|
|Pixel Pitch||4.57 μm||4.28 μm|
|Pixel Density||4.78 MP/cm2||5.45 MP/cm2|
|Moiré control||no AA filter||no AA filter|
|Movie Capability||no Video||1080/30p Video|
|ISO Setting||100 - 50,000 ISO||100 - 51,200 ISO|
|Image Processor||Maestro II||PRIME MII|
|DXO Sensor Quality (score)||..||78|
|DXO Color Depth (bits)||..||23.5|
|DXO Dynamic Range (EV)||..||13.0|
|DXO Low Light (ISO)||..||1061|
|Screen Specs||Leica M10-R||Pentax K-S1|
|Viewfinder Type||Optical viewfinder||Optical viewfinder|
|Viewfinder Field of View||100%||100%|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||3.0inch|
|LCD Resolution||1037k dots||921k dots|
|LCD Attachment||Fixed screen||Fixed screen|
|Touch Input||Touchscreen||no Touchscreen|
|Shooting Specs||Leica M10-R||Pentax K-S1|
|Focus System||Manual Focus||Phase-detect AF|
|Manual Focusing Aid||Focus Peaking||Focus Peaking|
|Max Shutter Speed (mechanical)||1/4000s||1/6000s|
|Continuous Shooting||4.5 shutter flaps/s||5.4 shutter flaps/s|
|Time-Lapse Photography||Intervalometer built-in||no Intervalometer|
|Image Stabilization||no shake reduction||In-body stabilization|
|Fill Flash||no On-Board Flash||Built-in Flash|
|Storage Medium||SDXC cards||SDXC cards|
|Single or Dual Card Slots||Single card slot||Single card slot|
|UHS card support||UHS-I||UHS-I|
|Connectivity Specs||Leica M10-R||Pentax K-S1|
|USB Connector||no USB||USB 2.0|
|HDMI Port||no HDMI||micro HDMI|
|Wifi Support||Wifi built-in||no Wifi|
|Body Specs||Leica M10-R||Pentax K-S1|
|Environmental Sealing||Weathersealed body||not weather sealed|
|Battery Life (CIPA)||210 shots per charge||410 shots per charge|
139 x 80 x 39 mm
(5.5 x 3.1 x 1.5 in)
121 x 93 x 70 mm
(4.8 x 3.7 x 2.8 in)
|Camera Weight||660 g (23.3 oz)||558 g (19.7 oz)|
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