Leica SL2-S vs Sigma fp
The Leica SL2-S and the Sigma fp are two digital cameras that were revealed to the public, respectively, in December 2020 and July 2019. Both the SL2-S and the fp are mirrorless interchangeable lens cameras that are equipped with a full frame sensor. Both cameras offer a resolution of 24 megapixels.
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 SL2-S and the Sigma fp? 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.
The side-by-side display below illustrates the physical size and weight of the Leica SL2-S and the Sigma fp. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All width, height and depth measures are rounded to the nearest millimeter.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sigma fp is considerably smaller (49 percent) than the Leica SL2-S. Moreover, the fp is substantially lighter (55 percent) than the SL2-S. In this context, it is worth noting that both cameras are splash and dust-proof and can, hence, be used in inclement weather conditions or harsh environments.
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 battery packs of both cameras can be charged via USB, which can be very convenient when travelling.
The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. 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.
|1.||Leica SL2-S||146 mm||107 mm||83 mm||931 g||510||Y||Dec 2020||4,895|
|2.||Sigma fp||113 mm||70 mm||45 mm||422 g||280||Y||Jul 2019||1,899|
|3.||Fujifilm X-Pro2||141 mm||83 mm||46 mm||495 g||350||Y||Jan 2016||1,699|
|4.||Fujifilm X-T2||133 mm||92 mm||49 mm||507 g||340||Y||Jul 2016||1,599|
|5.||Leica SL2||146 mm||107 mm||42 mm||953 g||370||Y||Nov 2019||5,999|
|6.||Leica SL||147 mm||104 mm||39 mm||847 g||400||Y||Oct 2015||7,450|
|7.||Nikon D780||144 mm||116 mm||76 mm||840 g||2260||Y||Jan 2020||2,299|
|8.||Olympus E-M1X||144 mm||147 mm||75 mm||997 g||870||Y||Jan 2019||2,999|
|9.||Panasonic S5||133 mm||98 mm||82 mm||714 g||440||Y||Sep 2020||1,999|
|10.||Panasonic S1||149 mm||110 mm||97 mm||1017 g||400||Y||Feb 2019||2,499|
|11.||Panasonic S1R||149 mm||110 mm||97 mm||1016 g||380||Y||Feb 2019||3,699|
|12.||Panasonic S1H||151 mm||114 mm||110 mm||1052 g||400||Y||May 2019||3,999|
|13.||Panasonic FT7||117 mm||76 mm||37 mm||319 g||300||Y||May 2018||449|
|14.||Pentax K-3 III||135 mm||104 mm||74 mm||820 g||800||Y||Mar 2021||1,999|
|15.||Sony A9 II||129 mm||96 mm||76 mm||678 g||690||Y||Oct 2019||4,499|
|16.||Sony A7||127 mm||94 mm||48 mm||474 g||340||Y||Oct 2013||1,699|
|Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.|
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. The fp was launched at a markedly lower price (by 61 percent) than the SL2-S, which puts it into a different market segment. Normally, street prices remain initially close to the MSRP, but after a couple of months, the first discounts appear. 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 imaging sensor is a crucial determinant 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. Furthermore, a large sensor camera will give the photographer more possibilities to use shallow depth-of-field in order to 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.
Both cameras under consideration feature a full frame sensor, but their sensors differ slightly in size. The sensor area in the fp is 1 percent smaller. They nevertheless have the same format factor of 1.0. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
Even though the SL2-S has a slightly larger sensor, both cameras offer the same resolution of 24 megapixels. This implies that the SL2-S has a lower pixel density and larger individual pixels (with a pixel pitch of 6.00μm versus 5.98μm for the fp), which gives it a potential advantage in terms of light gathering capacity. In addition, the SL2-S is a somewhat more recent model (by 1 year and 5 months) than the fp, and its sensor might have benefitted from technological advances during this time. 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.
Unlike the fp, the SL2-S has the capacity to capture high quality composite images (96MP) by combining multiple shots after shifting its sensor by miniscule distances. This multi-shot, pixel-shift mode is most suitable for photography of stationary objects (landscapes, studio scenes).
The Leica SL2-S has a native sensitivity range from ISO 100 to ISO 50000, which can be extended to ISO 50-100000. The corresponding ISO settings for the Sigma fp are ISO 100 to ISO 25600, with the possibility to increase the ISO range to 6-102400.
For many cameras, data on sensor performance has been reported by DXO Mark. This service is based on lab testing and assigns an overall score to each camera sensor, as well as ratings for dynamic range ("DXO Landscape"), color depth ("DXO Portrait"), and low-light sensitivity ("DXO Sports"). The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.
| DXO |
|1.||Leica SL2-S||Full Frame||24.0||6000||4000||4K/60p||25.2||14.1||3504||95|
|2.||Sigma fp||Full Frame||24.0||6000||4000||4K/30p||..||..||..||..|
|5.||Leica SL2||Full Frame||46.7||8368||5584||4K/60p||..||..||..||..|
|6.||Leica SL||Full Frame||24.0||6000||4000||4K/30p||25.0||13.4||1821||88|
|7.||Nikon D780||Full Frame||24.3||6048||4024||4K/30p||..||..||..||..|
|8.||Olympus E-M1X||Four Thirds||20.2||5184||3888||4K/30p||..||..||..||..|
|9.||Panasonic S5||Full Frame||24.0||6000||4000||4K/60p||..||..||..||..|
|10.||Panasonic S1||Full Frame||24.0||6000||4000||4K/60p||25.2||14.5||3333||95|
|11.||Panasonic S1R||Full Frame||46.7||8368||5584||4K/60p||26.4||14.1||3525||100|
|12.||Panasonic S1H||Full Frame||24.0||6000||4000||6K/30p||..||..||..||..|
|14.||Pentax K-3 III||APS-C||25.6||6192||4128||4K/30p||..||..||..||..|
|15.||Sony A9 II||Full Frame||24.0||6000||4000||4K/30p||25.0||14.0||3434||93|
|16.||Sony A7||Full Frame||24.0||6000||4000||1080/60p||24.8||14.2||2248||90|
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 SL2-S provides a higher frame rate than the fp. It can shoot video footage at 4K/60p, while the Sigma is limited to 4K/30p.
Apart from body and sensor, cameras can and do differ across a variety of features. For example, the SL2-S has an electronic viewfinder (5760k dots), which can be very helpful when shooting in bright sunlight. In contrast, the fp relies on live view and the rear LCD for framing. That said, the fp can be equipped with an optional viewfinder – the EVF-11. The table below summarizes some of the other core capabilities of the Leica SL2-S and Sigma fp in connection with corresponding information for a sample of similar cameras.
|14.||Pentax K-3 III||optical||Y||3.2||1620||fixed||Y||1/8000s||12.0||n||Y|
|15.||Sony A9 II||3686||n||3.0||1440||tilting||Y||1/8000s||10.0||n||Y|
One feature that is present on the SL2-S, but is missing on the fp is a top-level LCD. While being, of course, smaller than the rear screen, the control panel conveys some of the essential shooting information and can be convenient for quick and easy settings verification.
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, both cameras under consideration feature an 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 SL2-S and the Sigma fp 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 SL2-S and the fp write their files to SDXC cards. The SL2-S features dual card slots, which can be very useful in case a memory card fails. In contrast, the fp only has one slot. Both cameras support UHS-II cards, which provide for Ultra High Speed data transfer of up to 312 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 SL2-S and Sigma fp and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
| NFC |
|14.||Pentax K-3 III||Y||stereo||mono||Y||Y||micro||3.2||Y||-||Y|
|15.||Sony A9 II||Y||stereo||mono||Y||Y||micro||3.1||Y||Y||Y|
It is notable that the SL2-S has a headphone jack, which is not present on the fp This port makes it possible to attach external headphones and monitor the quality of sound during the recording process.
Both the SL2-S and the fp are recent models that are part of the current product line-up. Neither of the two has a direct predecessor, so perhaps they will constitute the origins of new camera lines for Leica and Sigma. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Leica and Sigma websites.
So what conclusions can be drawn? Which of the two cameras – the Leica SL2-S or the Sigma fp – 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 SL2-S:
- High quality composites: Can combine several shots after pixel-shifting its sensor.
- Better video: Provides higher movie framerates (4K/60p versus 4K/30p).
- Better sound control: Has a headphone port that enables audio monitoring while recording.
- Easier framing: Has an electronic viewfinder for image composition and settings control.
- Easier setting verification: Features an LCD display on top to control shooting parameters.
- Faster burst: Shoots at higher frequency (20 vs 12 flaps/sec) to capture the decisive moment.
- Longer lasting: Can take more shots (510 versus 280) on a single battery charge.
- Sharper images: Has hand-shake reducing image stabilization built-in.
- Faster data transfer: Supports a more advanced USB protocol (3.2 vs 3.1).
- 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.
- Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
- More prestigious: Has the Leica luxury appeal, which ensures a high resale price.
- More modern: Is somewhat more recent (announced 1 year and 5 months after the fp).
Reasons to prefer the Sigma fp:
- More compact: Is smaller (113x70mm vs 146x107mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 509g or 55 percent) and is thus easier to take along.
- More affordable: Was introduced into a lower priced category (61 percent cheaper at launch).
- More heavily discounted: Has been on the market for longer (launched in July 2019).
If the count of relative strengths (bullet points above) is taken as a measure, the SL2-S is the clear winner of the match-up (15 : 4 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. 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 SL2-S and the Sigma fp place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera listing 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 says little about, for example, the shooting experience and imaging performance of the SL2-S and the fp in practical situations. 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 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.
|1.||Leica SL2-S||4/5||..||..||4.5/5||4.5/5||Dec 2020||4,895|
|2.||Sigma fp||4/5||..||..||4/5||4.5/5||Jul 2019||1,899|
|3.||Fujifilm X-Pro2||..||+||83/100||4.5/5||4.5/5||Jan 2016||1,699|
|4.||Fujifilm X-T2||5/5||+ +||86/100||4.5/5||5/5||Jul 2016||1,599|
|5.||Leica SL2||4/5||..||..||4.5/5||4/5||Nov 2019||5,999|
|6.||Leica SL||4/5||..||84/100||4.5/5||4/5||Oct 2015||7,450|
|7.||Nikon D780||5/5||..||87/100||4.5/5||4.5/5||Jan 2020||2,299|
|8.||Olympus E-M1X||4.5/5||o||..||4.5/5||..||Jan 2019||2,999|
|9.||Panasonic S5||4.5/5||+ +||88/100||4.5/5||4.5/5||Sep 2020||1,999|
|10.||Panasonic S1||4.5/5||+ +||88/100||4.5/5||4/5||Feb 2019||2,499|
|11.||Panasonic S1R||4.5/5||..||89/100||4.5/5||4.5/5||Feb 2019||3,699|
|12.||Panasonic S1H||..||..||90/100||..||..||May 2019||3,999|
|13.||Panasonic FT7||..||+||..||3.5/5||3.5/5||May 2018||449|
|14.||Pentax K-3 III||..||..||..||..||..||Mar 2021||1,999|
|15.||Sony A9 II||..||..||90/100||5/5||5/5||Oct 2019||4,499|
|16.||Sony A7||5/5||+ +||80/100||5/5||5/5||Oct 2013||1,699|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
The review scores listed above should be treated with care, though. The ratings are only valid when referring 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 comparisons of ratings among very different cameras or across long time periods have little meaning. Also, please note that some of the review sites have changed their methodology and reporting over time.
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. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.
Specifications: Leica SL2-S vs Sigma fp
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 SL2-S||Sigma fp|
|Camera Type||Mirrorless system camera||Mirrorless system camera|
|Camera Lens||Leica L mount lenses||Leica L mount lenses|
|Launch Date||December 2020||July 2019|
|Launch Price||USD 4,895||USD 1,899|
|Sensor Specs||Leica SL2-S||Sigma fp|
|Sensor Format||Full Frame Sensor||Full Frame Sensor|
|Sensor Size||36.0 x 24.0 mm||35.9 x 23.9 mm|
|Sensor Area||864 mm2||858.01 mm2|
|Sensor Diagonal||43.3 mm||43.1 mm|
|Sensor Resolution||24 Megapixels||24 Megapixels|
|Image Resolution||6000 x 4000 pixels||6000 x 4000 pixels|
|Pixel Pitch||6.00 μm||5.98 μm|
|Pixel Density||2.78 MP/cm2||2.80 MP/cm2|
|Moiré control||no AA filter||no AA filter|
|Movie Capability||4K/60p Video||4K/30p Video|
|ISO Setting||100 - 50,000 ISO||100 - 25,600 ISO|
|ISO Boost||50 - 100,000 ISO||6 - 102,400 ISO|
|DXO Sensor Quality (score)||95||..|
|DXO Color Depth (bits)||25.2||..|
|DXO Dynamic Range (EV)||14.1||..|
|DXO Low Light (ISO)||3504||..|
|Screen Specs||Leica SL2-S||Sigma fp|
|Viewfinder Type||Electronic viewfinder||Viewfinder optional|
|Viewfinder Field of View||100%|
|Viewfinder Resolution||5760k dots|
|Top-Level Screen||Control Panel||no Top Display|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.2inch||3.2inch|
|LCD Resolution||2100k dots||2100k dots|
|LCD Attachment||Fixed screen||Fixed screen|
|Shooting Specs||Leica SL2-S||Sigma fp|
|Focus System||Contrast-detect AF||Contrast-detect AF|
|Manual Focusing Aid||Focus Peaking||Focus Peaking|
|Max Shutter Speed (mechanical)||1/8000s||1/8000s|
|Continuous Shooting||20 shutter flaps/s||12 shutter flaps/s|
|Electronic Shutter||up to 1/16000s||up to 1/8000s|
|Time-Lapse Photography||Intervalometer built-in||Intervalometer built-in|
|Image Stabilization||In-body stabilization||Lens stabilization only|
|Fill Flash||no On-Board Flash||no On-Board Flash|
|Storage Medium||SDXC cards||SDXC cards|
|Second Storage Option||Dual card slots||Single card slot|
|UHS card support||Dual UHS-II||UHS-II|
|Connectivity Specs||Leica SL2-S||Sigma fp|
|USB Connector||USB 3.2||USB 3.1|
|HDMI Port||full HDMI||micro HDMI|
|Microphone Port||External MIC port||External MIC port|
|Headphone Socket||Headphone port||no Headphone port|
|Wifi Support||Wifi built-in||no Wifi|
|Bluetooth Support||Bluetooth built-in||no Bluetooth|
|Body Specs||Leica SL2-S||Sigma fp|
|Environmental Sealing||Weathersealed body||Weathersealed body|
|Battery Life (CIPA)||510 shots per charge||280 shots per charge|
|In-Camera Charging||USB charging||USB charging|
146 x 107 x 83 mm
(5.7 x 4.2 x 3.3 in)
113 x 70 x 45 mm
(4.4 x 2.8 x 1.8 in)
|Camera Weight||931 g (32.8 oz)||422 g (14.9 oz)|
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