Fujifilm GFX 50S vs Panasonic S1

The Fujifilm GFX 50S and the Panasonic Lumix DC-S1 are two digital cameras that were revealed to the public, respectively, in September 2016 and February 2019. Both the GFX 50S and the S1 are mirrorless interchangeable lens cameras that are based on a medium format (GFX 50S) and a full frame (S1) sensor. The Fujifilm has a resolution of 51.1 megapixels, whereas the Panasonic provides 24 MP.

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

Headline Specifications

Fujifilm GFX 50S		Panasonic S1
Mirrorless system camera		Mirrorless system camera
Fujifilm G mount lenses		Leica L mount lenses
51.1 MP – Medium Format sensor		24 MP – Full Frame sensor
1080/30p Video		4K/60p Video
ISO 100-12,800 (50 - 102,400)		ISO 100-51,200 (50 - 204,800)
Viewfinder optional		Electronic viewfinder (5760k dots)
3.2" LCD – 2360k dots		3.2" LCD – 2100k dots
Fully flexible touchscreen		Fully flexible touchscreen
3 shutter flaps per second		9 shutter flaps per second
Lens stabilization only		In-body stabilization
Weathersealed body		Weathersealed body
400 shots per battery charge		400 shots per battery charge
148 x 94 x 91 mm, 740 g		149 x 110 x 97 mm, 1017 g

Check GFX 50S offers at
ebay.com
Check S1 price at
amazon.com

Going beyond this snapshot of core features and characteristics, what are the differences between the Fujifilm GFX 50S and the Panasonic Lumix DC-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 Fujifilm GFX 50S and the Panasonic 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 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 Panasonic S1 is notably larger (18 percent) than the Fujifilm GFX 50S. Moreover, the S1 is substantially heavier (37 percent) than the GFX 50S. 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 power pack in the S1 can be charged via the USB port, which can be very convenient 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.		Fujifilm GFX 50S	148 mm	94 mm	91 mm	740 g	400	Y	Sep 2016	6,499	ebay.com
2.		Panasonic S1	149 mm	110 mm	97 mm	1017 g	400	Y	Feb 2019	2,499	amazon.com
3.		Canon 5D Mark IV	151 mm	116 mm	76 mm	890 g	900	Y	Aug 2016	3,499	amazon.com
4.		Canon R6	138 mm	98 mm	88 mm	680 g	360	Y	Jul 2020	2,499	amazon.com
5.		Fujifilm GFX 50R	161 mm	97 mm	66 mm	775 g	400	Y	Sep 2018	4,499	ebay.com
6.		Fujifilm GFX 50S II	150 mm	104 mm	87 mm	900 g	440	Y	Sep 2021	3,999	amazon.com
7.		Fujifilm GFX 100 II	152 mm	117 mm	99 mm	1030 g	540	Y	Sep 2023	7,499	amazon.com
8.		Fujifilm GFX 100S	150 mm	104 mm	87 mm	900 g	460	Y	Jan 2021	5,999	amazon.com
9.		Hasselblad X1D	150 mm	98 mm	71 mm	725 g	..	Y	Jun 2016	8,995	ebay.com
10.		Hasselblad X1D II	148 mm	97 mm	70 mm	766 g	..	Y	Jun 2019	5,750	ebay.com
11.		Leica M10	139 mm	80 mm	39 mm	660 g	210	Y	Jan 2017	6,595	ebay.com
12.		Leica Q3	130 mm	80 mm	93 mm	743 g	350	Y	May 2023	5,995	amazon.com
13.		Leica SL	147 mm	104 mm	39 mm	847 g	400	Y	Oct 2015	7,450	ebay.com
14.		Panasonic S1H	151 mm	114 mm	110 mm	1052 g	400	Y	May 2019	3,999	amazon.com
15.		Panasonic S1R	149 mm	110 mm	97 mm	1016 g	380	Y	Feb 2019	3,699	amazon.com
16.		Panasonic S5	133 mm	98 mm	82 mm	714 g	440	Y	Sep 2020	1,999	amazon.com
17.		Sony A900	156 mm	117 mm	82 mm	895 g	880	Y	Sep 2008	2,999	ebay.com
Note: 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 listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The S1 was launched at a markedly lower price (by 62 percent) than the GFX 50S, 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.

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 Fujifilm GFX 50S features a medium format sensor and the Panasonic S1 a full frame sensor. The sensor area in the S1 is 42 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 50S has a native 4:3 aspect ratio, while the one in the S1 offers a 3:2 aspect.

With 51.1MP, the GFX 50S offers a higher resolution than the S1 (24MP), but the GFX 50S has smaller individual pixels (pixel pitch of 5.33μm versus 5.94μm for the S1). Moreover, the S1 is a much more recent model (by 2 years and 4 months) than the GFX 50S, and its sensor will have benefitted from technological advances during this time that 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 Fujifilm GFX 50S implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the GFX 50S for good quality output (200 dots per inch) amounts to 41.3 x 31 inches or 104.9 x 78.6 cm, for very good quality (250 dpi) 33 x 24.8 inches or 83.9 x 62.9 cm, and for excellent quality (300 dpi) 27.5 x 20.6 inches or 69.9 x 52.4 cm. The corresponding values for the Panasonic S1 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.

Unlike the GFX 50S, the S1 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 50S 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 Panasonic Lumix DC-S1 are ISO 100 to ISO 51200, with the possibility to increase the ISO range to 50-204800.

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 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.

Sensor Characteristics

		Camera Model	Sensor Class	Resolution (MP)	Horiz. Pixels	Vert. Pixels	Video Format	DXO Portrait	DXO Landscape	DXO Sports	DXO Overall
1.		Fujifilm GFX 50S	Medium Format	51.1	8256	6192	1080/30p	25.4	14.1	2977	96
2.		Panasonic S1	Full Frame	24.0	6000	4000	4K/60p	25.2	14.5	3333	95
3.		Canon 5D Mark IV	Full Frame	30.1	6720	4480	4K/30p	24.8	13.6	2995	91
4.		Canon R6	Full Frame	20.0	5472	3648	4k/60p	24.2	14.3	3394	90
5.		Fujifilm GFX 50R	Medium Format	51.1	8256	6192	1080/30p	25.7	14.4	3169	98
6.		Fujifilm GFX 50S II	Medium Format	51.1	8256	6192	1080/30p	25.9	14.8	3456	100
7.		Fujifilm GFX 100 II	Medium Format	101.8	11648	8736	8K/30p	25.9	15.0	3651	101
8.		Fujifilm GFX 100S	Medium Format	101.8	11648	8736	4K/30p	25.8	14.7	3391	100
9.		Hasselblad X1D	Medium Format	51.3	8272	6200	1080/25p	26.2	14.8	4489	102
10.		Hasselblad X1D II	Medium Format	51.3	8272	6200	1080/25p	25.7	14.5	3234	99
11.		Leica M10	Full Frame	23.8	5952	3992	none	24.4	13.2	2133	86
12.		Leica Q3	Full Frame	60.3	9528	6328	8K/30p	25.4	14.7	3216	96
13.		Leica SL	Full Frame	24.0	6000	4000	4K/30p	25.0	13.4	1821	88
14.		Panasonic S1H	Full Frame	24.0	6000	4000	6K/30p	25.2	14.2	2805	94
15.		Panasonic S1R	Full Frame	46.7	8368	5584	4K/60p	26.4	14.1	3525	100
16.		Panasonic S5	Full Frame	24.0	6000	4000	4K/60p	25.1	14.5	2697	94
17.		Sony A900	Full Frame	24.4	6048	4032	none	23.7	12.3	1431	79
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 can also record movies. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the S1 provides a better video resolution than the GFX 50S. It can shoot movie footage at 4K/60p, while the Fujifilm is limited to 1080/30p.

Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. For example, the S1 has an electronic viewfinder (5760k dots), which can be very helpful when shooting in bright sunlight. In contrast, the GFX 50S relies on live view and the rear LCD for framing. That said, the GFX 50S can be equipped with an optional viewfinder – the EVF-TL1. The following table reports on some other key feature differences and similarities of the Fujifilm GFX 50S, the Panasonic S1, and comparable 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.		Fujifilm GFX 50S	optional	Y	3.2 / 2360	full-flex	Y	1/4000s	3.0/s	n	n
2.		Panasonic S1	5760	Y	3.2 / 2100	full-flex	Y	1/8000s	9.0/s	n	Y
3.		Canon 5D Mark IV	optical	Y	3.2 / 1620	fixed	Y	1/8000s	7.0/s	n	n
4.		Canon R6	3690	n	3.0 / 1620	swivel	Y	1/8000s	12.0/s	n	Y
5.		Fujifilm GFX 50R	3690	n	3.2 / 2360	tilting	Y	1/4000s	3.0/s	n	n
6.		Fujifilm GFX 50S II	3690	Y	3.2 / 2360	full-flex	Y	1/4000s	3.0/s	n	Y
7.		Fujifilm GFX 100 II	9440	Y	3.2 / 2360	full-flex	Y	1/4000s	8.0/s	n	Y
8.		Fujifilm GFX 100S	3690	Y	3.2 / 2360	full-flex	Y	1/4000s	5.0/s	n	Y
9.		Hasselblad X1D	2360	n	3.0 / 920	fixed	Y	1/2000s	2.3/s	n	n
10.		Hasselblad X1D II	3690	n	3.6 / 2360	fixed	Y	1/2000s	2.7/s	n	n
11.		Leica M10	optical	n	3.0 / 1037	fixed	n	1/4000s	5.0/s	n	n
12.		Leica Q3	5760	n	3.0 / 1840	tilting	Y	1/2000s	15.0/s	n	Y
13.		Leica SL	4400	Y	3.0 / 1040	fixed	Y	1/8000s	11.0/s	n	n
14.		Panasonic S1H	5760	Y	3.2 / 2330	swivel	Y	1/8000s	9.0/s	n	Y
15.		Panasonic S1R	5760	Y	3.2 / 2100	full-flex	Y	1/8000s	9.0/s	n	Y
16.		Panasonic S5	2360	n	3.0 / 1840	swivel	Y	1/8000s	7.0/s	n	Y
17.		Sony A900	optical	Y	3.0 / 922	fixed	n	1/8000s	5.0/s	n	Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One feature that differentiates the S1 and the GFX 50S is in-body image stabilization (IBIS). The S1 reduces the risk of handshake-induced blur with all attached lenses, while the GFX 50S offers no blur reduction with lenses that themselves do not provide optical image stabilization.

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 50S and the Panasonic S1 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.

The GFX 50S writes its imaging data to SDXC cards, while the S1 uses SDXC or XQD cards. Both cameras feature dual card slots, which can be very useful in case a memory card fails. Both cameras support UHS-II cards, which provide for Ultra High Speed data transfer of up to 312 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 Fujifilm GFX 50S and Panasonic Lumix DC-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 Mic / Speaker	Microphone Port	Headphone Port	HDMI Port	USB Port	WiFi Support	NFC Support	Bluetooth Support
1.		Fujifilm GFX 50S	Y	stereo / mono	Y	Y	micro	3.0	Y	-	-
2.		Panasonic S1	Y	stereo / mono	Y	Y	full	3.1	Y	-	Y
3.		Canon 5D Mark IV	Y	mono / mono	Y	Y	mini	3.0	Y	Y	-
4.		Canon R6	Y	mono / mono	Y	Y	micro	3.2	Y	-	Y
5.		Fujifilm GFX 50R	Y	stereo / mono	Y	Y	micro	3.0	Y	-	Y
6.		Fujifilm GFX 50S II	Y	stereo / mono	Y	Y	micro	3.2	Y	-	-
7.		Fujifilm GFX 100 II	Y	stereo / mono	Y	Y	full	3.2	Y	-	Y
8.		Fujifilm GFX 100S	Y	stereo / mono	Y	Y	micro	3.2	Y	-	Y
9.		Hasselblad X1D	Y	stereo / mono	Y	Y	mini	3.0	Y	-	-
10.		Hasselblad X1D II	Y	stereo / mono	Y	Y	-	3.0	Y	-	-
11.		Leica M10	Y	- / -	-	-	-	-	Y	-	-
12.		Leica Q3	Y	stereo / mono	-	-	micro	3.1	Y	-	Y
13.		Leica SL	Y	stereo / mono	Y	Y	full	3.0	Y	-	-
14.		Panasonic S1H	Y	stereo / mono	Y	Y	full	3.1	Y	-	Y
15.		Panasonic S1R	Y	stereo / mono	Y	Y	full	3.1	Y	-	Y
16.		Panasonic S5	Y	stereo / mono	Y	Y	micro	3.2	Y	-	Y
17.		Sony A900	Y	- / -	-	-	mini	2.0	-	-	-

Both cameras feature a PC Sync terminal to control professional strobe lights, which will be appreciated by studio photographers.

The S1 is a recent model that features in the current product line-up of Panasonic. In contrast, the GFX 50S has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the GFX 50S was succeeded by the Fujifilm GFX 50S II. Further information on the features and operation of the GFX 50S and S1 can be found, respectively, in the Fujifilm GFX 50S Manual (free pdf) or the online Panasonic S1 Manual.

Review summary

So how do things add up? Which of the two cameras – the Fujifilm GFX 50S or the Panasonic S1 – has the upper hand? Is one clearly better than the other? A synthesis of the relative strong points of each of the models is listed below.

Arguments in favor of the Fujifilm GFX 50S:

• More detail: Offers more megapixels (51.1 vs 24MP) with a 43% higher linear resolution.
• More detailed LCD: Has a higher resolution rear screen (2360k vs 2100k dots).
• More compact: Is smaller (148x94mm vs 149x110mm) and thus needs less room in the bag.
• Less heavy: Is lighter (by 277g or 27 percent) and hence easier to carry around.
• More heavily discounted: Has been available for much longer (launched in September 2016).

Reasons to prefer the Panasonic Lumix DC-S1:

• High quality composites: Can combine several shots after pixel-shifting its sensor.
• Better video: Provides higher definition movie capture (4K/60p vs 1080/30p).
• Easier framing: Has an electronic viewfinder for image composition and settings control.
• Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
• Faster burst: Shoots at higher frequency (9 vs 3 flaps/sec) to capture the decisive moment.
• Easier travel charging: Can be conveniently charged via its USB port.
• Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
• More solid recording: Has a full-sized HDMI port for a sturdy connection to an external recorder.
• Easier wireless transfer: Supports Bluetooth for image sharing without cables.
• More affordable: Was introduced into a lower priced category (62 percent cheaper at launch).
• More modern: Reflects 2 years and 4 months of technical progress since the GFX 50S launch.

If the count of individual advantages (bullet points above) is taken as a guide, the S1 is the clear winner of the contest (11 : 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 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 Fujifilm GFX 50S and the Panasonic S1 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 remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the GFX 50S or the S1. User reviews that are available, for instance, at amazon can sometimes shed light on these issues, but such feedback is all too often partial, inconsistent, and inaccurate.

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.		Fujifilm GFX 50S	..	..	4.5/5	85/100	5/5	4.5/5	Sep 2016	6,499	ebay.com
2.		Panasonic S1	4.5/5	+ +	4.5/5	88/100	4.5/5	4/5	Feb 2019	2,499	amazon.com
3.		Canon 5D Mark IV	4.5/5	+ +	4/5	87/100	4.5/5	4.5/5	Aug 2016	3,499	amazon.com
4.		Canon R6	5/5	+ +	4/5	90/100	4.5/5	5/5	Jul 2020	2,499	amazon.com
5.		Fujifilm GFX 50R	5/5	..	5/5	84/100	4.5/5	4.5/5	Sep 2018	4,499	ebay.com
6.		Fujifilm GFX 50S II	5/5	..	5/5	87/100	..	5/5	Sep 2021	3,999	amazon.com
7.		Fujifilm GFX 100 II	5/5	+	5/5	..	..	4.5/5	Sep 2023	7,499	amazon.com
8.		Fujifilm GFX 100S	5/5	+ +	5/5	90/100	5/5	5/5	Jan 2021	5,999	amazon.com
9.		Hasselblad X1D	..	o	..	81/100	..	4/5	Jun 2016	8,995	ebay.com
10.		Hasselblad X1D II	..	..	4/5	..	4/5	4/5	Jun 2019	5,750	ebay.com
11.		Leica M10	4.5/5	..	..	..	4/5	4.5/5	Jan 2017	6,595	ebay.com
12.		Leica Q3	5/5	..	4.5/5	..	..	4.5/5	May 2023	5,995	amazon.com
13.		Leica SL	4/5	..	4/5	84/100	4.5/5	4/5	Oct 2015	7,450	ebay.com
14.		Panasonic S1H	..	..	4/5	90/100	..	..	May 2019	3,999	amazon.com
15.		Panasonic S1R	4.5/5	..	4.6/5	89/100	4.5/5	4.5/5	Feb 2019	3,699	amazon.com
16.		Panasonic S5	4.5/5	+ +	4.5/5	88/100	4.5/5	4.5/5	Sep 2020	1,999	amazon.com
17.		Sony A900	..	+ +	..	+ +	4.5/5	5/5	Sep 2008	2,999	ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

Care should be taken when interpreting the review scores above, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. Thus, a score needs to be put into the context of the launch date and the launch price 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.

Check GFX 50S offers at
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Check S1 price at
amazon.com

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.

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