Epson R-D1 vs Fujifilm X-T4

The Epson R-D1 and the Fujifilm X-T4 are two enthusiast cameras that were officially introduced, respectively, in March 2004 and February 2020. The R-D1 is a rangefinder-focusing mirrorless, while the X-T4 is a mirrorless interchangeable lens camera. Both cameras are equipped with an APS-C sensor. The Epson has a resolution of 6 megapixels, whereas the Fujifilm provides 26 MP.

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

Headline Specifications

Epson R-D1		Fujifilm X-T4
Rangefinder camera		Mirrorless system camera
Leica M mount lenses		Fujifilm X mount lenses
6 MP – APS-C sensor		26 MP – APS-C sensor
no Video		4K/60p Video
ISO 200-1,600		ISO 160-12,800 (80 - 51,200)
Optical viewfinder		Electronic viewfinder (3690k dots)
2.0" LCD – 235k dots		3.0" LCD – 1620k dots
Fixed screen (not touch-sensitive)		Swivel touchscreen
1 shutter flaps per second		15 shutter flaps per second
no shake reduction		In-body stabilization
not weather sealed		Weathersealed body
142 x 89 x 40 mm, 620 g		135 x 93 x 64 mm, 607 g

Check R-D1 offers at
ebay.com
Check X-T4 offers at
ebay.com

Going beyond this snapshot of core features and characteristics, what are the differences between the Epson R-D1 and the Fujifilm X-T4? 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 side-by-side display below illustrates the physical size and weight of the Epson R-D1 and the Fujifilm X-T4. 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 X-T4 can be obtained in two different colors (black, silver), while the R-D1 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 Epson R-D1 and the Fujifilm X-T4 are of equal size. However, the X-T4 is slightly lighter (2 percent) than the R-D1. It is noteworthy in this context that the X-T4 is splash and dust-proof, while the R-D1 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. Both cameras have similarly sized sensors, but DSLRs have a larger flange-to-focal plane distance than mirrorless cameras, which imposes contraints on the optical engineering process and generally leads to bigger and heavier lenses. You can compare the optics available for the two cameras in the Leica M Lens Catalog (R-D1) and the Fujinon X Lens Catalog (X-T4).

The power pack in the X-T4 can be charged via the USB port, 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 want to switch the focus of the display and review another camera pair, you can move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons 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.		Epson R-D1	142 mm	89 mm	40 mm	620 g	..	n	Mar 2004	2,999	ebay.com
2.		Fujifilm X-T4	135 mm	93 mm	64 mm	607 g	500	Y	Feb 2020	1,699	ebay.com
3.		Canon Rebel	142 mm	99 mm	72 mm	649 g	400	n	Aug 2003	899	ebay.com
4.		Fujifilm X-H1	140 mm	97 mm	86 mm	673 g	310	Y	Feb 2018	1,899	ebay.com
5.		Fujifilm X-Pro3	141 mm	83 mm	46 mm	497 g	440	Y	Oct 2019	1,799	amazon.com
6.		Fujifilm X-T2	133 mm	92 mm	49 mm	507 g	340	Y	Jul 2016	1,599	ebay.com
7.		Fujifilm X-T3	133 mm	93 mm	59 mm	539 g	390	Y	Sep 2018	1,499	ebay.com
8.		Fujifilm X-T5	130 mm	91 mm	64 mm	557 g	580	Y	Nov 2022	1,699	amazon.com
9.		Leica CL	131 mm	78 mm	45 mm	403 g	220	n	Nov 2017	2,795	ebay.com
10.		Leica M9	139 mm	80 mm	37 mm	585 g	550	n	Sep 2009	7,999	ebay.com
11.		Leica M10	139 mm	80 mm	39 mm	660 g	210	Y	Jan 2017	6,595	ebay.com
12.		Leica X Vario	133 mm	73 mm	95 mm	680 g	450	n	Jun 2013	2,850	ebay.com
13.		Leica X-U Typ 113	140 mm	79 mm	88 mm	635 g	450	Y	Jan 2016	2,950	ebay.com
14.		Nikon D40	124 mm	94 mm	64 mm	522 g	470	n	Nov 2006	499	ebay.com
15.		Nikon D50	133 mm	102 mm	76 mm	620 g	400	n	Apr 2005	749	ebay.com
16.		Nikon D70	140 mm	111 mm	78 mm	679 g	400	n	Jan 2004	999	ebay.com
17.		Nikon D70s	140 mm	111 mm	78 mm	679 g	500	n	Apr 2005	899	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

The price is, of course, an important factor in any camera decision. The retail prices at the time of the camera’s release place the model in the market relative to other models in the producer’s line-up and the competition. The X-T4 was launched at a markedly lower price (by 43 percent) than the R-D1, 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 imaging sensor is at the core of digital cameras and its size is one of the main determining factors 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. 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.

Both cameras under consideration feature an APS-C sensor, but their sensors differ slightly in size. The sensor area in the X-T4 is 1 percent smaller. They nevertheless have the same format factor of 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Despite having a slightly smaller sensor, the X-T4 offers a higher resolution of 26 megapixels, compared with 6 MP of the R-D1. This megapixels advantage comes at the cost of a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 3.76μm versus 7.85μm for the R-D1). However, it should be noted that the X-T4 is much more recent (by 15 years and 11 months) than the R-D1, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently. Coming back to sensor resolution, it should be mentioned that the X-T4 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Fujifilm X-T4 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the X-T4 for good quality output (200 dots per inch) amounts to 31.2 x 20.8 inches or 79.2 x 52.8 cm, for very good quality (250 dpi) 25 x 16.6 inches or 63.4 x 42.3 cm, and for excellent quality (300 dpi) 20.8 x 13.9 inches or 52.8 x 35.2 cm. The corresponding values for the Epson R-D1 are 15 x 10 inches or 38.2 x 25.4 cm for good quality, 12 x 8 inches or 30.6 x 20.3 cm for very good quality, and 10 x 6.7 inches or 25.5 x 16.9 cm for excellent quality prints.

The X-T4 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Epson R-D1 has a native sensitivity range from ISO 200 to ISO 1600. The corresponding ISO settings for the Fujifilm X-T4 are ISO 160 to ISO 12800, with the possibility to increase the ISO range to 80-51200.

In terms of underlying technology, the R-D1 is build around a CCD sensor, while the X-T4 uses a BSI-CMOS imager. Like most digital cameras, the R-D1 uses a Bayer filter for capturing RGB colors on a square grid of photosensors. In contrast, the X-T4 employs a more randomized X-Trans layout of photosites, which according to Fujifilm helps to minimize moiré.

Consistent information on actual sensor performance is available from DXO Mark for many cameras. 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.

Sensor Characteristics

		Camera Model	Sensor Class	Resolution (MP)	Horiz. Pixels	Vert. Pixels	Video Format	DXO Portrait	DXO Landscape	DXO Sports	DXO Overall
1.		Epson R-D1	APS-C	6.0	3008	2000	none	21.1	10.4	564	55
2.		Fujifilm X-T4	APS-C	26.0	6240	4160	4K/60p	24.1	13.6	1995	84
3.		Canon Rebel	APS-C	6.3	3072	2048	none	21.0	10.8	544	55
4.		Fujifilm X-H1	APS-C	24.0	6000	4000	4K/30p	24.0	13.3	1806	82
5.		Fujifilm X-Pro3	APS-C	26.0	6240	4160	4K/30p	24.1	13.6	1968	84
6.		Fujifilm X-T2	APS-C	24.0	6000	4000	4K/30p	23.8	13.1	1653	81
7.		Fujifilm X-T3	APS-C	26.0	6240	4160	4K/60p	24.0	13.4	1853	83
8.		Fujifilm X-T5	APS-C	39.8	7728	5152	6.2k/30p	24.3	13.9	2264	86
9.		Leica CL	APS-C	24.1	6014	4014	4K/30p	24.0	13.3	1788	82
10.		Leica M9	Full Frame	18.1	5212	3472	none	22.5	11.7	884	69
11.		Leica M10	Full Frame	23.8	5952	3992	none	24.4	13.2	2133	86
12.		Leica X Vario	APS-C	16.1	4928	3272	1080/30p	23.4	12.7	1320	78
13.		Leica X-U Typ 113	APS-C	16.1	4928	3264	1080/30p	23.8	13.0	1614	80
14.		Nikon D40	APS-C	6.0	3008	2000	none	21.0	11.0	561	56
15.		Nikon D50	APS-C	6.0	3008	2000	none	20.9	10.8	560	55
16.		Nikon D70	APS-C	6.0	3008	2000	none	20.4	10.3	529	50
17.		Nikon D70s	APS-C	6.0	3008	2000	none	20.4	10.3	529	50
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. The X-T4 indeed provides for movie recording, while the R-D1 does not. The highest resolution format that the X-T4 can use is 4K/60p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the X-T4 has an electronic viewfinder (3690k dots), while the R-D1 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 adjacent table lists some of the other core features of the Epson R-D1 and Fujifilm X-T4 along with similar information for a selection of comparators.

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.		Epson R-D1	optical	n	2.0 / 235	fixed	n	1/2000s	1.0/s	n	n
2.		Fujifilm X-T4	3690	n	3.0 / 1620	swivel	Y	1/8000s	15.0/s	n	Y
3.		Canon Rebel	optical	n	1.8 / 118	fixed	n	1/4000s	2.5/s	Y	n
4.		Fujifilm X-H1	3690	Y	3.0 / 1040	full-flex	Y	1/8000s	14.0/s	n	Y
5.		Fujifilm X-Pro3	3690	n	3.0 / 1620	tilting	Y	1/8000s	8.0/s	n	n
6.		Fujifilm X-T2	2360	n	3.0 / 1040	full-flex	n	1/8000s	8.0/s	n	n
7.		Fujifilm X-T3	3690	n	3.0 / 1040	full-flex	Y	1/8000s	11.0/s	n	n
8.		Fujifilm X-T5	3690	n	3.0 / 1840	full-flex	Y	1/8000s	15.0/s	n	Y
9.		Leica CL	2360	Y	3.0 / 1040	fixed	Y	1/8000s	10.0/s	n	n
10.		Leica M9	optical	n	2.5 / 230	fixed	n	1/4000s	2.0/s	n	n
11.		Leica M10	optical	n	3.0 / 1037	fixed	n	1/4000s	5.0/s	n	n
12.		Leica X Vario	optional	n	3.0 / 920	fixed	n	1/2000s	5.0/s	Y	n
13.		Leica X-U Typ 113	optional	n	3.0 / 920	fixed	n	1/2000s	5.0/s	Y	n
14.		Nikon D40	optical	n	2.5 / 230	fixed	n	1/4000s	2.5/s	Y	n
15.		Nikon D50	optical	n	2.0 / 130	fixed	n	1/4000s	2.5/s	Y	n
16.		Nikon D70	optical	n	1.8 / 130	fixed	n	1/8000s	3.0/s	Y	n
17.		Nikon D70s	optical	n	2.0 / 130	fixed	n	1/8000s	3.0/s	Y	n
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 X-T4 has a touchscreen, while the R-D1 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 X-T4 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 Fujifilm X-T4 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.

The R-D1 writes its imaging data to SDHC cards, while the X-T4 uses SDXC cards. The X-T4 features dual card slots, which can be very useful in case a memory card fails. In contrast, the R-D1 only has one slot. The X-T4 supports UHS-II cards (on both slots), while the R-D1 cannot take advantage of Ultra High Speed SD cards.

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 Epson R-D1 and Fujifilm X-T4 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.		Epson R-D1	Y	- / -	-	-	-	-	-	-	-
2.		Fujifilm X-T4	Y	stereo / mono	Y	-	micro	3.1	Y	-	Y
3.		Canon Rebel	Y	- / -	-	-	-	1.1	-	-	-
4.		Fujifilm X-H1	Y	stereo / mono	Y	-	micro	3.0	Y	-	-
5.		Fujifilm X-Pro3	Y	stereo / mono	Y	-	-	3.1	Y	-	Y
6.		Fujifilm X-T2	Y	stereo / mono	Y	-	micro	3.0	Y	-	-
7.		Fujifilm X-T3	Y	stereo / mono	Y	Y	micro	3.1	Y	-	Y
8.		Fujifilm X-T5	Y	stereo / mono	Y	-	micro	3.2	Y	-	Y
9.		Leica CL	Y	stereo / mono	-	-	-	-	Y	-	-
10.		Leica M9	Y	- / -	-	-	-	2.0	-	-	-
11.		Leica M10	Y	- / -	-	-	-	-	Y	-	-
12.		Leica X Vario	Y	stereo / mono	-	-	mini	2.0	-	-	-
13.		Leica X-U Typ 113	Y	stereo / mono	-	-	-	2.0	-	-	-
14.		Nikon D40	Y	- / -	-	-	-	2.0	-	-	-
15.		Nikon D50	Y	- / -	-	-	-	2.0	-	-	-
16.		Nikon D70	Y	- / -	-	-	-	1.0	-	-	-
17.		Nikon D70s	Y	- / -	-	-	-	2.0	-	-	-

It is notable that the X-T4 offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the R-D1 does not provide wifi capability.

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

Both the R-D1 and the X-T4 have been discontinued, but can regularly be found used on ebay. The X-T4 was replaced by the Fujifilm X-T5, while the R-D1 does not have a direct successor. Further information on the features and operation of the R-D1 and X-T4 can be found, respectively, in the Epson R-D1 Manual (free pdf) or the online Fujifilm X-T4 Manual.

Review summary

So what conclusions can be drawn? Is there a clear favorite between the Epson R-D1 and the Fujifilm X-T4? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.

Advantages of the Epson R-D1:

• Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
• Brighter framing: Features an optical viewfinder for clear, lag-free composition.
• More heavily discounted: Has been available for much longer (launched in March 2004).

Arguments in favor of the Fujifilm X-T4:

• More detail: Has more megapixels (26 vs 6MP), which boosts linear resolution by 108%.
• Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
• Broader imaging potential: Can capture not only stills but also 4K/60p video.
• Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
• More framing info: Has an electronic viewfinder that displays shooting data.
• Larger screen: Has a bigger rear LCD (3.0" vs 2.0") for image review and settings control.
• More detailed LCD: Has a higher resolution rear screen (1620k vs 235k dots).
• More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
• Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
• More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
• Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/2000s) to freeze action.
• Faster burst: Shoots at higher frequency (15 vs 1 flaps/sec) to capture the decisive moment.
• Less disturbing: Has an electronic shutter option for completely silent shooting.
• Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
• Easier travel charging: Can be conveniently charged via its USB port.
• Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
• Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
• 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.
• Faster buffer clearing: Supports Ultra High Speed (UHS-II) SDXC cards on both slots.
• More affordable: Was introduced into a lower priced category (43 percent cheaper at launch).
• More modern: Reflects 15 years and 11 months of technical progress since the R-D1 launch.

If the count of individual advantages (bullet points above) is taken as a guide, the X-T4 is the clear winner of the contest (23 : 3 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.

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 R-D1 or the X-T4 perform in practice. 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 following table reports the overall ratings of the cameras as published by some of the major 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.		Epson R-D1	..	..	..	..	..	..	Mar 2004	2,999	ebay.com
2.		Fujifilm X-T4	5/5	+ +	5/5	88/100	5/5	5/5	Feb 2020	1,699	ebay.com
3.		Canon Rebel	..	..	..	+ +	..	..	Aug 2003	899	ebay.com
4.		Fujifilm X-H1	..	+	5/5	86/100	4.5/5	4.5/5	Feb 2018	1,899	ebay.com
5.		Fujifilm X-Pro3	4/5	+	4/5	85/100	4/5	..	Oct 2019	1,799	amazon.com
6.		Fujifilm X-T2	5/5	+ +	..	86/100	4.5/5	5/5	Jul 2016	1,599	ebay.com
7.		Fujifilm X-T3	5/5	+ +	4.5/5	88/100	5/5	5/5	Sep 2018	1,499	ebay.com
8.		Fujifilm X-T5	5/5	+ +	4.5/5	90/100	4.5/5	..	Nov 2022	1,699	amazon.com
9.		Leica CL	..	..	4.2/5	..	..	4/5	Nov 2017	2,795	ebay.com
10.		Leica M9	..	..	..	..	4.5/5	..	Sep 2009	7,999	ebay.com
11.		Leica M10	4.5/5	..	..	..	4/5	4.5/5	Jan 2017	6,595	ebay.com
12.		Leica X Vario	3/5	..	..	..	4/5	4/5	Jun 2013	2,850	ebay.com
13.		Leica X-U Typ 113	3.5/5	..	..	..	..	3.5/5	Jan 2016	2,950	ebay.com
14.		Nikon D40	..	81/100	..	+ +	o	4.5/5	Nov 2006	499	ebay.com
15.		Nikon D50	..	78/100	..	+ +	4/5	4.5/5	Apr 2005	749	ebay.com
16.		Nikon D70	..	..	..	+ +	..	..	Jan 2004	999	ebay.com
17.		Nikon D70s	..	..	..	..	..	5/5	Apr 2005	899	ebay.com
Note: (+ +) 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. Hence, a score should always be seen in the context of the camera's market launch date and its price, 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.

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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. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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