Fujifilm GFX 100S vs Leica SL2-S
The Fujifilm GFX 100S and the Leica SL2-S are two digital cameras that were announced, respectively, in January 2021 and December 2020. Both the GFX 100S and the SL2-S are mirrorless interchangeable lens cameras that are based on a medium format (GFX 100S) and a full frame (SL2-S) sensor. The Fujifilm has a resolution of 101.8 megapixels, whereas the Leica provides 24 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 Fujifilm GFX 100S and the Leica SL2-S? 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 Fujifilm GFX 100S and the Leica SL2-S is provided 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.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Fujifilm GFX 100S and the Leica SL2-S are of equal size. However, the SL2-S is slightly heavier (3 percent) than the GFX 100S. 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 following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. 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.||Fujifilm GFX 100S||150 mm||104 mm||87 mm||900 g||460||Y||Jan 2021||5,999|
|2.||Leica SL2-S||146 mm||107 mm||83 mm||931 g||510||Y||Dec 2020||4,895|
|3.||Canon R5||138 mm||98 mm||88 mm||738 g||320||Y||Jul 2020||3,899|
|4.||Fujifilm X-T4||135 mm||93 mm||64 mm||607 g||500||Y||Feb 2020||1,699|
|5.||Fujifilm X-S10||126 mm||85 mm||65 mm||465 g||325||n||Oct 2020||999|
|6.||Fujifilm GFX 100||156 mm||144 mm||75 mm||1320 g||800||Y||May 2019||9,999|
|7.||Fujifilm GFX 50R||161 mm||97 mm||66 mm||775 g||400||Y||Sep 2018||4,499|
|8.||Fujifilm XP130||110 mm||71 mm||28 mm||207 g||240||n||Jan 2018||229|
|9.||Fujifilm GFX 50S||148 mm||94 mm||91 mm||740 g||400||Y||Sep 2016||6,499|
|10.||Leica SL2||146 mm||107 mm||42 mm||953 g||370||Y||Nov 2019||5,999|
|11.||Leica SL||147 mm||104 mm||39 mm||847 g||400||Y||Oct 2015||7,450|
|12.||Olympus E-M1X||144 mm||147 mm||75 mm||997 g||870||Y||Jan 2019||2,999|
|13.||Panasonic S1||149 mm||110 mm||97 mm||1017 g||400||Y||Feb 2019||2,499|
|14.||Panasonic S1H||151 mm||114 mm||110 mm||1052 g||400||Y||May 2019||3,999|
|15.||Sony A1||129 mm||97 mm||81 mm||737 g||530||Y||Jan 2021||6,499|
|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 listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The SL2-S was launched at a somewhat lower price (by 18 percent) than the GFX 100S, 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.
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 tend to be more expensive and lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Fujifilm GFX 100S features a medium format sensor and the Leica SL2-S a full frame sensor. The sensor area in the SL2-S is 40 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 0.79 and 1.0. The sensor in the GFX 100S has a native 4:3 aspect ratio, while the one in the SL2-S offers a 3:2 aspect.
With 101.8MP, the GFX 100S offers a higher resolution than the SL2-S (24MP), but the GFX 100S has smaller individual pixels (pixel pitch of 3.76μm versus 6.00μm for the SL2-S). It is noteworthy in this context that the two cameras were released in close succession, so that their sensors are from the same technological generation. 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 Fujifilm GFX 100S implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the GFX 100S for good quality output (200 dots per inch) amounts to 58.2 x 43.7 inches or 147.9 x 110.9 cm, for very good quality (250 dpi) 46.6 x 34.9 inches or 118.3 x 88.8 cm, and for excellent quality (300 dpi) 38.8 x 29.1 inches or 98.6 x 74 cm. The corresponding values for the Leica SL2-S are 30 x 20 inches or 76.2 x 50.8 cm for good quality, 24 x 16 inches or 61 x 40.6 cm for very good quality, and 20 x 13.3 inches or 50.8 x 33.9 cm for excellent quality prints.
The GFX 100S has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.
Unlike the GFX 100S, 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 Fujifilm GFX 100S has a native sensitivity range from ISO 100 to ISO 12800, which can be extended to ISO 50-102400. The corresponding ISO settings for the Leica SL2-S are ISO 100 to ISO 50000, with the possibility to increase the ISO range to 50-100000.
Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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 table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
| DXO |
|1.||Fujifilm GFX 100S||Medium Format||101.8||11648||8736||4K/30p||..||..||..||..|
|2.||Leica SL2-S||Full Frame||24.0||6000||4000||4K/60p||..||..||..||..|
|3.||Canon R5||Full Frame||44.8||8192||5464||8k/30p||25.3||14.6||3042||95|
|6.||Fujifilm GFX 100||Medium Format||101.8||11648||8736||4K/30p||..||..||..||..|
|7.||Fujifilm GFX 50R||Medium Format||51.1||8256||6192||1080/30p||..||..||..||..|
|9.||Fujifilm GFX 50S||Medium Format||51.1||8256||6192||1080/30p||..||..||..||..|
|10.||Leica SL2||Full Frame||46.7||8368||5584||4K/60p||..||..||..||..|
|11.||Leica SL||Full Frame||24.0||6000||4000||4K/30p||25.0||13.4||1821||88|
|12.||Olympus E-M1X||Four Thirds||20.2||5184||3888||4K/30p||..||..||..||..|
|13.||Panasonic S1||Full Frame||24.0||6000||4000||4K/60p||25.2||14.5||3333||95|
|14.||Panasonic S1H||Full Frame||24.0||6000||4000||6K/30p||..||..||..||..|
|15.||Sony A1||Full Frame||49.8||8640||5760||8k/30p||..||..||..||..|
Many modern cameras are not only capable of taking still images, but also of capturing video footage. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the SL2-S provides a faster frame rate than the GFX 100S. It can shoot movie footage at 4K/60p, while the Fujifilm is limited to 4K/30p.
Apart from body and sensor, cameras can and do differ across a range of features. The two cameras under review are similar with respect to both having an electronic viewfinder. However, the one in the SL2-S offers a substantially higher resolution than the one in the GFX 100S (5760k vs 3690k dots). The table below summarizes some of the other core capabilities of the Fujifilm GFX 100S and Leica SL2-S in connection with corresponding information for a sample of similar cameras.
|1.||Fujifilm GFX 100S||3690||Y||3.2||2360||full-flex||Y||1/4000s||5.0||n||Y|
|6.||Fujifilm GFX 100||optional||Y||3.2||2360||tilting||Y||1/4000s||5.0||n||Y|
|7.||Fujifilm GFX 50R||3690||n||3.2||2360||tilting||Y||1/4000s||3.0||n||n|
|9.||Fujifilm GFX 50S||optional||Y||3.2||2360||full-flex||Y||1/4000s||3.0||n||n|
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 Fujifilm GFX 100S and the Leica SL2-S 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 GFX 100S and the SL2-S write their files to SDXC cards. Both cameras feature dual card slots, which can be very useful in case a memory card fails. Moreover, both the GFX 100S and the SL2-S support UHS-II cards, which provide for Ultra High Speed data transfer of up to 312 MB/s, on both slots.
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 Fujifilm GFX 100S and Leica SL2-S and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
| NFC |
|1.||Fujifilm GFX 100S||Y||stereo||mono||Y||Y||micro||3.2||Y||-||Y|
|6.||Fujifilm GFX 100||Y||stereo||mono||Y||Y||micro||3.1||Y||-||Y|
|7.||Fujifilm GFX 50R||Y||stereo||mono||Y||Y||micro||3.0||Y||-||Y|
|9.||Fujifilm GFX 50S||Y||stereo||mono||Y||Y||micro||3.0||Y||-||-|
Studio photographers will appreciate that the Fujifilm GFX 100S (unlike the SL2-S) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
Both the GFX 100S and the SL2-S are recent models that are part of the current product line-up. The GFX 100S replaced the earlier Fujifilm GFX 100, while the SL2-S does not have a direct predecessor. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Fujifilm and Leica websites.
So how do things add up? Is the Fujifilm GFX 100S better than the Leica SL2-S or vice versa? The listing below highlights the relative strengths of the two models.
Advantages of the Fujifilm GFX 100S:
- More detail: Offers more megapixels (101.8 vs 24MP) with a 102% higher linear resolution.
- Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
- More detailed LCD: Has a higher resolution rear screen (2360k vs 2100k dots).
- More flexible LCD: Has a full-flex screen for odd-angle shots in portrait or landscape orientation.
- Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
Reasons to prefer 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).
- More detailed viewfinder: Has higher resolution electronic viewfinder (5760k vs 3690k dots).
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.78x vs 0.77x).
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
- Faster burst: Shoots at higher frequency (20 vs 5 flaps/sec) to capture the decisive moment.
- Longer lasting: Gets more shots (510 versus 460) out of a single battery charge.
- More solid recording: Has a full-sized HDMI port for a sturdy connection to an external recorder.
- More prestigious: Has the Leica luxury appeal, which ensures a high resale value.
- More affordable: Was released into a lower priced segment (18 percent cheaper at launch).
If the count of individual advantages (bullet points above) is taken as a guide, the SL2-S is the clear winner of the contest (10 : 5 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 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.
How about other alternatives? Do the specifications of the Fujifilm GFX 100S and the Leica SL2-S 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 GFX 100S and the SL2-S 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 why expert reviews are important. 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.||Fujifilm GFX 100S||..||..||..||..||..||Jan 2021||5,999|
|2.||Leica SL2-S||4/5||..||..||..||4.5/5||Dec 2020||4,895|
|3.||Canon R5||4.5/5||..||91/100||4.5/5||4.5/5||Jul 2020||3,899|
|4.||Fujifilm X-T4||5/5||+ +||..||5/5||5/5||Feb 2020||1,699|
|5.||Fujifilm X-S10||5/5||..||86/100||4.5/5||4.5/5||Oct 2020||999|
|6.||Fujifilm GFX 100||4.5/5||+ +||90/100||5/5||4.5/5||May 2019||9,999|
|7.||Fujifilm GFX 50R||5/5||..||84/100||4.5/5||4.5/5||Sep 2018||4,499|
|8.||Fujifilm XP130||..||o||..||3.5/5||4/5||Jan 2018||229|
|9.||Fujifilm GFX 50S||..||..||85/100||5/5||4.5/5||Sep 2016||6,499|
|10.||Leica SL2||4/5||..||..||4.5/5||4/5||Nov 2019||5,999|
|11.||Leica SL||4/5||..||84/100||4.5/5||4/5||Oct 2015||7,450|
|12.||Olympus E-M1X||4.5/5||o||..||4.5/5||..||Jan 2019||2,999|
|13.||Panasonic S1||4.5/5||+ +||88/100||4.5/5||4/5||Feb 2019||2,499|
|14.||Panasonic S1H||..||..||90/100||..||..||May 2019||3,999|
|15.||Sony A1||..||..||..||..||..||Jan 2021||6,499|
|Notes: (+ +) 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. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and comparisons of ratings among very different cameras or across long time periods 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 are interested in seeing how other cameras pair up, just make your choice using the following search menu. 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: Fujifilm GFX 100S vs Leica SL2-S
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||Fujifilm GFX 100S||Leica SL2-S|
|Camera Type||Mirrorless system camera||Mirrorless system camera|
|Camera Lens||Fujifilm G mount lenses||Leica L mount lenses|
|Launch Date||January 2021||December 2020|
|Launch Price||USD 5,999||USD 4,895|
|Sensor Specs||Fujifilm GFX 100S||Leica SL2-S|
|Sensor Format||Medium Format Sensor||Full Frame Sensor|
|Sensor Size||43.8 x 32.9 mm||36.0 x 24.0 mm|
|Sensor Area||1441.02 mm2||864 mm2|
|Sensor Diagonal||54.8 mm||43.3 mm|
|Sensor Resolution||101.8 Megapixels||24 Megapixels|
|Image Resolution||11648 x 8736 pixels||6000 x 4000 pixels|
|Pixel Pitch||3.76 μm||6.00 μm|
|Pixel Density||7.06 MP/cm2||2.78 MP/cm2|
|Moiré control||no AA filter||no AA filter|
|Movie Capability||4K/30p Video||4K/60p Video|
|ISO Setting||100 - 12,800 ISO||100 - 50,000 ISO|
|ISO Boost||50 - 102,400 ISO||50 - 100,000 ISO|
|Image Processor||X-Processor 4||Maestro III|
|Screen Specs||Fujifilm GFX 100S||Leica SL2-S|
|Viewfinder Type||Electronic viewfinder||Electronic viewfinder|
|Viewfinder Field of View||100%||100%|
|Viewfinder Resolution||3690k dots||5760k dots|
|Top-Level Screen||Control Panel||Control Panel|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.2inch||3.2inch|
|LCD Resolution||2360k dots||2100k dots|
|LCD Attachment||Fully flexible screen||Fixed screen|
|Shooting Specs||Fujifilm GFX 100S||Leica SL2-S|
|Focus System||On-Sensor Phase-detect||Contrast-detect AF|
|Manual Focusing Aid||Focus Peaking||Focus Peaking|
|Max Shutter Speed (mechanical)||1/4000s||1/8000s|
|Continuous Shooting||5 shutter flaps/s||20 shutter flaps/s|
|Electronic Shutter||up to 1/16000s||up to 1/16000s|
|Time-Lapse Photography||Intervalometer built-in||Intervalometer built-in|
|Image Stabilization||In-body stabilization||In-body stabilization|
|Fill Flash||no On-Board Flash||no On-Board Flash|
|Storage Medium||SDXC cards||SDXC cards|
|Second Storage Option||Dual card slots||Dual card slots|
|UHS card support||Dual UHS-II||Dual UHS-II|
|Connectivity Specs||Fujifilm GFX 100S||Leica SL2-S|
|Studio Flash||PC Sync socket||no PC Sync|
|USB Connector||USB 3.2||USB 3.2|
|HDMI Port||micro HDMI||full HDMI|
|Microphone Port||External MIC port||External MIC port|
|Headphone Socket||Headphone port||Headphone port|
|Wifi Support||Wifi built-in||Wifi built-in|
|Bluetooth Support||Bluetooth built-in||Bluetooth built-in|
|Body Specs||Fujifilm GFX 100S||Leica SL2-S|
|Environmental Sealing||Weathersealed body||Weathersealed body|
|Battery Life (CIPA)||460 shots per charge||510 shots per charge|
|In-Camera Charging||USB charging||USB charging|
150 x 104 x 87 mm
(5.9 x 4.1 x 3.4 in)
146 x 107 x 83 mm
(5.7 x 4.2 x 3.3 in)
|Camera Weight||900 g (31.7 oz)||931 g (32.8 oz)|
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