Epson R-D1 vs Panasonic GH4
The Epson R-D1 and the Panasonic Lumix DMC-GH4 are two enthusiast cameras that were announced, respectively, in March 2004 and February 2014. The R-D1 is a fixed lens compact, while the GH4 is a rangefinder-style mirrorless. The cameras are based on an APS-C (R-D1) and a Four Thirds (GH4) sensor. The Epson has a resolution of 6 megapixels, whereas the Panasonic provides 15.9 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 Epson R-D1 and the Panasonic Lumix DMC-GH4? 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 Epson R-D1 and the Panasonic GH4 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 width, height and depth 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 Panasonic GH4 is somewhat smaller (2 percent) than the Epson R-D1. Moreover, the GH4 is markedly lighter (10 percent) than the R-D1. It is noteworthy in this context that the GH4 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. A larger imaging sensor will tend to go along with bigger and heavier lenses, although exceptions exist. You can compare the optics available for the two cameras in the Leica M Lens Catalog (R-D1) and the Micro Four Thirds Lens Catalog (GH4).
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, just click on the right or left arrow next to the camera that you would like to inspect. Alternatively, you can also use the CAM-parator to select your camera combination among a larger number of options.
|Epson R-D1||5.6 in||3.5 in||1.6 in||21.9 oz||..||n||Mar 2004||2,999|
|Panasonic GH4||5.2 in||3.7 in||3.3 in||19.8 oz||500||Y||Feb 2014||1,499|
|Canon Rebel||5.6 in||3.9 in||2.8 in||22.9 oz||400||n||Aug 2003||899|
|Leica CL||5.2 in||3.1 in||1.8 in||14.2 oz||220||n||Nov 2017||2,795|
|Leica M10||5.5 in||3.1 in||1.5 in||23.3 oz||210||Y||Jan 2017||6,595|
|Leica X-U Typ 113||5.5 in||3.1 in||3.5 in||22.4 oz||450||Y||Jan 2016||2,950|
|Leica X Vario||5.2 in||2.9 in||3.7 in||24.0 oz||450||n||Jun 2013||2,850|
|Leica M9||5.5 in||3.1 in||1.5 in||20.6 oz||..||n||Sep 2009||7,999|
|Nikon D40||4.9 in||3.7 in||2.5 in||18.4 oz||470||n||Nov 2006||499|
|Nikon D50||5.2 in||4.0 in||3.0 in||21.9 oz||400||n||Apr 2005||749|
|Nikon D70s||5.5 in||4.4 in||3.1 in||24.0 oz||500||n||Apr 2005||899|
|Nikon D70||5.5 in||4.4 in||3.1 in||24.0 oz||400||n||Jan 2004||999|
|Olympus E-M5 II||4.9 in||3.3 in||1.8 in||16.5 oz||310||Y||Feb 2015||1,099|
|Olympus E-M1||5.1 in||3.7 in||2.5 in||17.5 oz||350||Y||Sep 2013||1,399|
|Panasonic GH5||5.5 in||3.9 in||3.4 in||25.6 oz||410||Y||Jan 2017||1,999|
|Panasonic G6||4.8 in||3.3 in||2.8 in||13.8 oz||340||n||Apr 2013||599|
|Panasonic GH3||5.2 in||3.7 in||3.2 in||19.4 oz||540||Y||Sep 2012||1,299|
Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
(1) Number of images that can be taken on a full battery charge according to the CIPA-standard; (2) Official announcement.
Any camera decision will naturally be influenced heavily by the price. 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 GH4 was launched at a markedly lower price (by 50 percent) than the R-D1, 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.
The size of the sensor inside a digital camera is one of the key determinants 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.
Of the two cameras under consideration, the Epson R-D1 features an APS-C sensor and the Panasonic GH4 a Four Thirds sensor. The sensor area in the GH4 is 39 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.5 and 2.0. The sensor in the R-D1 has a native 3:2 aspect ratio, while the one in the GH4 offers a 4:3 aspect.
Despite having a smaller sensor, the GH4 offers a higher resolution of 15.9 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 GH4 is much more recent (by 9 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.
The resolution advantage of the Panasonic GH4 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the GH4 for good quality output (200 dots per inch) amounts to 23 x 17.3 inches or 58.5 x 43.9 cm, for very good quality (250 dpi) 18.4 x 13.8 inches or 46.8 x 35.1 cm, and for excellent quality (300 dpi) 15.4 x 11.5 inches or 39 x 29.3 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 Epson R-D1 has a native sensitivity range from ISO 200 to ISO 1600. The corresponding ISO settings for the Panasonic Lumix DMC-GH4 are ISO 200 to ISO 25600, with the possibility to increase the ISO range to 100-25600.
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 table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
|Panasonic GH4||Four Thirds||15.9||4608||3456||4K/30p||23.2||12.8||791||74|
|Leica M10||Full Frame||23.8||5952||3992||none||24.4||13.2||2133||86|
|Leica X-U Typ 113||APS-C||16.1||4928||3264||1080/30p||..||..||..||..|
|Leica X Vario||APS-C||16.1||4928||3272||1080/30p||23.4||12.7||1320||78|
|Leica M9||Full Frame||18.1||5212||3472||none||22.5||11.7||884||69|
|Olympus E-M5 II||Four Thirds||15.9||4608||3456||1080/60p||23.0||12.5||842||73|
|Olympus E-M1||Four Thirds||15.9||4608||3456||1080/30p||23.0||12.7||757||73|
|Panasonic GH5||Four Thirds||20.2||5184||3888||4K/60p||23.9||13.0||807||77|
|Panasonic G6||Four Thirds||15.9||4608||3456||1080/60p||21.3||11.5||639||61|
|Panasonic GH3||Four Thirds||15.9||4608||3456||1080/60p||22.7||12.4||812||71|
Many modern cameras are not only capable of taking still images, but can also record movies. The GH4 indeed provides for movie recording, while the R-D1 does not. The highest resolution format that the GH4 can use is 4K/30p.
Beyond body and sensor, cameras can and do differ across a range of features. For example, the GH4 has an electronic viewfinder (2359k 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 Panasonic GH4 along with similar information for a selection of comparators.
|Leica X-U Typ 113||optional||n||3.0||920||fixed||n||1/2000s||5.0||Y||n|
|Leica X Vario||optional||n||3.0||920||fixed||n||1/2000s||5.0||Y||n|
|Olympus E-M5 II||2360||n||3.0||1037||swivel||Y||1/8000s||10.0||n||Y|
One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The GH4 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 GH4 has an articulated screen that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in taking selfies. In contrast, the R-D1 does not have a selfie-screen.
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 GH4 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 Panasonic GH4 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 GH4 uses SDXC cards. The GH4 supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the R-D1 cannot take advantage of Ultra High Speed SD cards.
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 Panasonic Lumix DMC-GH4 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
|Leica X-U Typ 113||Y||stereo||mono||-||-||-||2.0||-||-||-|
|Leica X Vario||Y||stereo||mono||-||-||mini||2.0||-||-||-|
|Olympus E-M5 II||Y||stereo||mono||Y||-||micro||2.0||Y||-||-|
It is notable that the GH4 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 GH4 have been discontinued, but can regularly be found used on eBay. The GH4 was replaced by the Panasonic GH5, while the R-D1 does not have a direct successor. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Epson and Panasonic websites.
So how do things add up? Is there a clear favorite between the Epson R-D1 and the Panasonic GH4? Which camera is better? The listing below highlights the relative strengths of the two models.
Arguments in favor of the Epson R-D1:
- Brighter framing: Features an optical viewfinder for clear, lag-free composition.
- More heavily discounted: Has been available for much longer (launched in March 2004).
Advantages of the Panasonic Lumix DMC-GH4:
- More detail: Has more megapixels (15.9 vs 6MP), which boosts linear resolution by 59%.
- Broader imaging potential: Can capture not only stills but also 4K/30p video.
- 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 (1036k 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 (12 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.
- Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
- Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
- Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
- Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
- Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
- More affordable: Was introduced into a lower priced category (50 percent cheaper at launch).
- More modern: Reflects 9 years and 11 months of technical progress since the R-D1 launch.
If the number of relative strengths (bullet points above) is taken as a guide, the GH4 is the clear winner of the contest (19 : 2 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 comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it remains incomplete and does no justice, for example, to the way the R-D1 or the GH4 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 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 (cameralabs, dpreview, ephotozine, imaging-resource, and photographyblog). 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.
|Epson R-D1||..||..||..||..||..||Mar 2004||2,999|
|Panasonic GH4||+ +||85/100||5/5||5/5||5/5||Feb 2014||1,499|
|Canon Rebel||..||+ +||..||o||..||Aug 2003||899|
|Leica CL||..||..||..||..||4/5||Nov 2017||2,795|
|Leica M10||..||..||4/5||..||4.5/5||Jan 2017||6,595|
|Leica X-U Typ 113||..||..||..||..||3.5/5||Jan 2016||2,950|
|Leica X Vario||..||..||4/5||4/5||4/5||Jun 2013||2,850|
|Leica M9||..||..||4.5/5||4.5/5||..||Sep 2009||7,999|
|Nikon D40||81/100||+ +||o||5/5||4.5/5||Nov 2006||499|
|Nikon D50||78/100||+ +||4/5||o||4.5/5||Apr 2005||749|
|Nikon D70s||..||..||..||o||5/5||Apr 2005||899|
|Nikon D70||..||+ +||..||o||..||Jan 2004||999|
|Olympus E-M5 II||+ +||81/100||5/5||4.5/5||5/5||Feb 2015||1,099|
|Olympus E-M1||+ +||84/100||4.5/5||4.5/5||4.5/5||Sep 2013||1,399|
|Panasonic GH5||+ +||85/100||4.5/5||5/5||5/5||Jan 2017||1,999|
|Panasonic G6||+ +||..||5/5||..||4.5/5||Apr 2013||599|
|Panasonic GH3||+ +||79/100||4.5/5||5/5||4.5/5||Sep 2012||1,299|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
The above review scores should be interpreted 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. Hence, a score should always be seen in the context of the camera's market launch date and its price, 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.
- Canon 4000D vs Panasonic GH4
- Canon RP vs Panasonic GH4
- Canon XT vs Panasonic GH4
- Epson R-D1 vs Leica SL
- Epson R-D1 vs Nikon D7100
- Epson R-D1 vs Panasonic ZS70
- Epson R-D1 vs Sony A5000
- Epson R-D1 vs Sony A850
- Epson R-D1 vs Sony RX100 VII
- Nikon Df vs Panasonic GH4
- Nikon Z6 II vs Panasonic GH4
- Panasonic GH4 vs Pentax K-70
Specifications: Epson R-D1 vs Panasonic GH4
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||Epson R-D1||Panasonic GH4|
|Camera Type||Rangefinder camera||Mirrorless system camera|
|Camera Lens||Leica M mount lenses||Micro Four Thirds lenses|
|Launch Date||March 2004||February 2014|
|Launch Price||USD 2,999||USD 1,499|
|Sensor Specs||Epson R-D1||Panasonic GH4|
|Sensor Format||APS-C Sensor||Four Thirds Sensor|
|Sensor Size||23.7 x 15.6 mm||17.3 x 13.0 mm|
|Sensor Area||369.72 mm2||224.9 mm2|
|Sensor Diagonal||28.4 mm||21.6 mm|
|Sensor Resolution||6 Megapixels||15.9 Megapixels|
|Image Resolution||3008 x 2000 pixels||4608 x 3456 pixels|
|Pixel Pitch||7.85 μm||3.76 μm|
|Pixel Density||1.63 MP/cm2||7.08 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||no Video||4K/30p Video|
|ISO Setting||200 - 1,600 ISO||200 - 25,600 ISO|
|ISO Boost||no Enhancement||100 - 25,600 ISO|
|DXO Sensor Quality (score)||..||74|
|DXO Color Depth (bits)||..||23.2|
|DXO Dynamic Range (EV)||..||12.8|
|DXO Low Light (ISO)||..||791|
|Screen Specs||Epson R-D1||Panasonic GH4|
|Viewfinder Type||Optical viewfinder||Electronic viewfinder|
|Viewfinder Field of View||100%||100%|
|Viewfinder Resolution||2359k dots|
|LCD Framing||Live View|
|Rear LCD Size||2.0inch||3.0inch|
|LCD Resolution||235k dots||1036k dots|
|LCD Attachment||Fixed screen||Swivel screen|
|Touch Input||no Touchscreen||Touchscreen|
|Shooting Specs||Epson R-D1||Panasonic GH4|
|Focus System||Manual Focus||Contrast-detect AF|
|Manual Focusing Aid||no Peaking Feature||Focus Peaking|
|Max Shutter Speed (mechanical)||1/2000s||1/8000s|
|Continuous Shooting||1 shutter flaps/s||12 shutter flaps/s|
|Electronic Shutter||no E-Shutter||up to 1/8000s|
|Time-Lapse Photography||no Intervalometer||Intervalometer built-in|
|Fill Flash||no On-Board Flash||Build-in Flash|
|Storage Medium||SDHC cards||SDXC cards|
|Second Storage Option||Single card slot||Single card slot|
|UHS card support||no||UHS-I|
|Connectivity Specs||Epson R-D1||Panasonic GH4|
|Studio Flash||PC Sync socket||PC Sync socket|
|USB Connector||no USB||USB 2.0|
|HDMI Port||no HDMI||micro HDMI|
|Microphone Port||no MIC socket||External MIC port|
|Headphone Socket||no Headphone port||Headphone port|
|Wifi Support||no Wifi||Wifi built-in|
|Near-Field Communication||no NFC||NFC built-in|
|Body Specs||Epson R-D1||Panasonic GH4|
|Environmental Sealing||not weather sealed||Weathersealed body|
142 x 89 x 40 mm
(5.6 x 3.5 x 1.6 in)
133 x 93 x 84 mm
(5.2 x 3.7 x 3.3 in)
|Camera Weight||620 g (21.9 oz)||560 g (19.8 oz)|
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