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Epson R-D1 vs Sony A7R II

The Epson R-D1 and the Sony Alpha A7R II are two enthusiast cameras that were officially introduced, respectively, in March 2004 and June 2015. The R-D1 is a rangefinder-focusing mirrorless, while the A7R II is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (R-D1) and a full frame (A7R II) sensor. The Epson has a resolution of 6 megapixels, whereas the Sony provides 42.2 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
versus
Sony A7R II
Epson R-D1   Sony A7R II
Rangefinder camera Mirrorless system camera
Leica M mount lenses Sony E mount lenses
6 MP – APS-C sensor 42.2 MP – Full Frame sensor
no Video 4K/30p Video
ISO 200-1,600 ISO 100-25,600 (50 - 102,400)
Optical viewfinder Electronic viewfinder (2400k dots)
2.0" LCD – 235k dots 2.0" LCD – 1229k dots
Fixed screen (not touch-sensitive) Tilting screen (no touchscreen)
1 shutter flaps per second 5 shutter flaps per second
no shake reductionIn-body stabilization
not weather sealedWeathersealed body
142 x 89 x 40 mm, 620 g 127 x 96 x 60 mm, 625 g
Epson R-D1:
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Sony A7R II:
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Going beyond this snapshot of core features and characteristics, what are the differences between the Epson R-D1 and the Sony Alpha A7R II? 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 Sony A7R II. 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 size dimensions are rounded to the nearest millimeter.

Size Epson R-D1 vs Sony A7R II
Compare R-D1 versus A7R II top
Comparison R-D1 or A7R II rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A7R II is somewhat smaller (4 percent) than the Epson R-D1. However, the A7R II is slightly heavier (1 percent) than the R-D1. It is noteworthy in this context that the A7R II 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 Sony FE Lens Catalog (A7R II).

The power pack in the A7R II 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.

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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 2,999i
2.
 
Sony A7R II 127 mm 96 mm 60 mm 625 g 290 Y Jun 2015 3,199i
3.
 
Canon 350D 127 mm 94 mm 64 mm 540 g 400 n Feb 2005 899i
4.
 
Canon 300D 142 mm 99 mm 72 mm 649 g 400 n Aug 2003 899i
5.
 
Leica M10 139 mm 80 mm 39 mm 660 g 210 Y Jan 2017 6,595 i
6.
 
Leica X Vario 133 mm 73 mm 95 mm 680 g 450 n Jun 2013 2,850i
7.
 
Leica M9 139 mm 80 mm 37 mm 585 g .. n Sep 2009 7,999i
8.
 
Leica M8 139 mm 80 mm 37 mm 591 g .. n Sep 2006 5,499i
9.
 
Nikon D50 133 mm 102 mm 76 mm 620 g 400 n Apr 2005 749i
10.
 
Nikon D70s 140 mm 111 mm 78 mm 679 g 500 n Apr 2005 899i
11.
 
Nikon D70 140 mm 111 mm 78 mm 679 g 400 n Jan 2004 999i
12.
 
Olympus E-300 147 mm 85 mm 64 mm 624 g 750 n Sep 2004 799i
13.
 
Sony A7R III 127 mm 96 mm 74 mm 650 g 650 Y Oct 2017 3,199i
14.
 
Sony A99 II 143 mm 104 mm 76 mm 849 g 490 Y Sep 2016 3,199 i
15.
 
Sony A7S II 127 mm 96 mm 60 mm 627 g 370 Y Sep 2015 2,999i
16.
 
Sony A7 II 127 mm 96 mm 60 mm 599 g 350 Y Nov 2014 1,999i
17.
 
Sony A7R 127 mm 94 mm 48 mm 465 g 340 Y Oct 2013 2,299i
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.

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 R-D1 was somewhat cheaper (by 6 percent) than the A7R II at launch, but both cameras fall into the same price category. 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.

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Sensor comparison

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 tend to be more expensive and 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 Sony A7R II a full frame sensor. The sensor area in the A7R II is 133 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.5 and 1.0. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Epson R-D1 and Sony A7R II sensor measures

With 42.2MP, the A7R II offers a higher resolution than the R-D1 (6MP), but the A7R II has smaller individual pixels (pixel pitch of 4.52μm versus 7.85μm for the R-D1). Yet, the A7R II is a much more recent model (by 11 years and 3 months) than the R-D1, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that the A7R II has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Sony A7R II implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A7R II for good quality output (200 dots per inch) amounts to 39.8 x 26.5 inches or 101 x 67.4 cm, for very good quality (250 dpi) 31.8 x 21.2 inches or 80.8 x 53.9 cm, and for excellent quality (300 dpi) 26.5 x 17.7 inches or 67.3 x 44.9 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 A7R II 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 Sony Alpha A7R II are ISO 100 to ISO 25600, with the possibility to increase the ISO range to 50-102400.

R-D1 versus A7R II MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. This service determines an overall sensor rating, as well as sub-scores for low-light sensitivity ("DXO Sports"), dynamic range ("DXO Landscape"), and color depth ("DXO Portrait"). The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.

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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 2000none21.110.456455
2.
 
Sony A7R II Full Frame 42.2 7952 53044K/30p26.013.9343498
3.
 
Canon 350D APS-C 8.0 3456 2304none21.810.863760
4.
 
Canon 300D APS-C 6.3 3072 2048none21.010.854455
5.
 
Leica M10 Full Frame 23.8 5952 3992none24.413.2213386
6.
 
Leica X Vario APS-C 16.1 4928 32721080/30p23.412.7132078
7.
 
Leica M9 Full Frame 18.1 5212 3472none22.511.788469
8.
 
Leica M8 APS-H 10.4 3936 2630none21.111.366359
9.
 
Nikon D50 APS-C 6.0 3008 2000none20.910.856055
10.
 
Nikon D70s APS-C 6.0 3008 2000none20.410.352950
11.
 
Nikon D70 APS-C 6.0 3008 2000none20.410.352950
12.
 
Olympus E-300 Four Thirds 8.0 3264 2448none20.410.1-4048
13.
 
Sony A7R III Full Frame 42.2 7952 53044K/30p26.014.73523100
14.
 
Sony A99 II Full Frame 42.2 7952 53044K/30p25.413.4231792
15.
 
Sony A7S II Full Frame 12.0 4240 28324K/30p23.613.3299385
16.
 
Sony A7 II Full Frame 24.0 6000 40001080/60p24.913.6244990
17.
 
Sony A7R Full Frame 36.2 7360 49121080/60p25.614.1274695
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 A7R II indeed provides for movie recording, while the R-D1 does not. The highest resolution format that the A7R II can use is 4K/30p.

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Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. For example, the A7R II has an electronic viewfinder (2400k 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 table below summarizes some of the other core capabilities of the Epson R-D1 and Sony A7R II in connection with corresponding information for a sample of similar cameras.

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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-D1optical n2.0 / 235 fixed n 1/2000s 1.0/s n n
2.
 
Sony A7R II2400 n3.0 / 1229 tilting n 1/8000s 5.0/s n Y
3.
 
Canon 350Doptical n1.8 / 115 fixed n 1/4000s 3.0/s Y n
4.
 
Canon 300Doptical n1.8 / 118 fixed n 1/4000s 2.5/s Y n
5.
 
Leica M10optical n3.0 / 1037 fixed n 1/4000s 5.0/s n n
6.
 
Leica X Variooptional n3.0 / 920 fixed n 1/2000s 5.0/s Y n
7.
 
Leica M9optical n2.5 / 230 fixed n 1/4000s 2.0/s n n
8.
 
Leica M8optical n2.5 / 230 fixed n 1/8000s 2.0/s n n
9.
 
Nikon D50optical n2.0 / 130 fixed n 1/4000s 2.5/s Y n
10.
 
Nikon D70soptical n2.0 / 130 fixed n 1/8000s 3.0/s Y n
11.
 
Nikon D70optical n1.8 / 130 fixed n 1/8000s 3.0/s Y n
12.
 
Olympus E-300optical n1.8 / 134 fixed n 1/4000s 2.5/s Y n
13.
 
Sony A7R III3686 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
14.
 
Sony A99 II2400 Y3.0 / 1229 full-flex n 1/8000s 12.0/s n Y
15.
 
Sony A7S II2400 n3.0 / 1229 tilting n 1/8000s 5.0/s n Y
16.
 
Sony A7 II2400 n3.0 / 1230 tilting n 1/8000s 5.0/s n Y
17.
 
Sony A7R2400 n3.0 / 1230 tilting n 1/8000s 4.0/s n n
Notes: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

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 A7R II 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 R-D1 writes its imaging data to SDHC cards, while the A7R II uses SDXC or Memory Stick PRO Duo cards. The A7R II 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.

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 Sony Alpha A7R II and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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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-D1Y- / --------
2.
 
Sony A7R IIYstereo / monoYYmicro2.0YY-
3.
 
Canon 350DY- / ----2.0---
4.
 
Canon 300DY- / ----1.1---
5.
 
Leica M10Y- / -----Y--
6.
 
Leica X VarioYstereo / mono--mini2.0---
7.
 
Leica M9Y- / ----2.0---
8.
 
Leica M8Y- / ----2.0---
9.
 
Nikon D50Y- / ----2.0---
10.
 
Nikon D70sY- / ----2.0---
11.
 
Nikon D70Y- / ----1.0---
12.
 
Olympus E-300Y- / ----2.0---
13.
 
Sony A7R IIIYstereo / monoYYmicro3.1YYY
14.
 
Sony A99 IIYstereo / monoYYmicro2.0YYY
15.
 
Sony A7S IIYstereo / monoYYmicro2.0YY-
16.
 
Sony A7 IIYstereo / monoYYmicro2.0YY-
17.
 
Sony A7RYstereo / monoYYmicro2.0YY-

It is notable that the A7R II 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.

Studio photographers will appreciate that the Epson R-D1 (unlike the A7R II) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the R-D1 and the A7R II have been discontinued, but can regularly be found used on eBay. The A7R II was replaced by the Sony Alpha A7R III, 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 Sony websites.

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Review summary

So how do things add up? Is the Epson R-D1 better than the Sony A7R II or vice versa? Below is a summary of the relative strengths of each of the two contestants.

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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.
  • Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
  • More heavily discounted: Has been available for much longer (launched in March 2004).

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Reasons to prefer the Sony Alpha A7R II:

  • More detail: Has more megapixels (42.2 vs 6MP), which boosts linear resolution by 165%.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Better image quality: Is equipped with a larger and more technologically advanced sensor.
  • Richer colors: The sensor size advantage translates into images with better, more accurate colors.
  • More dynamic range: Larger sensor captures a wider spectrum of light and dark details.
  • Better low-light sensitivity: Larger sensor produces good images even in poorly lit environments.
  • Broader imaging potential: Can capture not only stills but also 4K/30p 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 (1229k vs 235k dots).
  • More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/2000s) to freeze action.
  • Faster burst: Shoots at higher frequency (5 vs 1 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent 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 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 modern: Reflects 11 years and 3 months of technical progress since the R-D1 launch.

If the count of relative strengths (bullet points above) is taken as a measure, the A7R II is the clear winner of the contest (22 : 4 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 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.

R-D1 04:22 A7R II

In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the R-D1 or the A7R II. 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 why hands-on reviews by experts are important. 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.

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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 2,999i
2.
 
Sony A7R II5/5+ +5/590/1005/55/5 Jun 2015 3,199i
3.
 
Canon 350D..80/100..+ +o.. Feb 2005 899i
4.
 
Canon 300D......+ +.... Aug 2003 899i
5.
 
Leica M104.5/5......4/54.5/5 Jan 2017 6,595 i
6.
 
Leica X Vario3/5......4/54/5 Jun 2013 2,850i
7.
 
Leica M9........4.5/5.. Sep 2009 7,999i
8.
 
Leica M8......+ +.... Sep 2006 5,499i
9.
 
Nikon D50..78/100..+ +4/54.5/5 Apr 2005 749i
10.
 
Nikon D70s..........5/5 Apr 2005 899i
11.
 
Nikon D70......+ +.... Jan 2004 999i
12.
 
Olympus E-300......+o4.5/5 Sep 2004 799i
13.
 
Sony A7R III..+ +4/590/1004.5/55/5 Oct 2017 3,199i
14.
 
Sony A99 II....4.5/585/1004.5/54.5/5 Sep 2016 3,199 i
15.
 
Sony A7S II5/5+....4.5/55/5 Sep 2015 2,999i
16.
 
Sony A7 II5/5+4/582/1004.5/55/5 Nov 2014 1,999i
17.
 
Sony A7R5/5+ +..82/1004.5/55/5 Oct 2013 2,299i
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

Care should be taken when interpreting the review scores above, 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 comparisons of ratings among very different cameras or across long time periods have little meaning. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

Epson R-D1:
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Sony A7R II:
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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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    Specifications: Epson R-D1 vs Sony A7R II

    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 Specifications
    Camera Model Epson R-D1 Sony A7R II
    Camera Type Rangefinder camera Mirrorless system camera
    Camera Lens Leica M mount lenses Sony E mount lenses
    Launch Date March 2004 June 2015
    Launch Price USD 2,999 USD 3,199
    Sensor Specs Epson R-D1 Sony A7R II
    Sensor Technology CCD BSI-CMOS
    Sensor Format APS-C Sensor Full Frame Sensor
    Sensor Size 23.7 x 15.6 mm 35.9 x 24.0 mm
    Sensor Area 369.72 mm2 861.6 mm2
    Sensor Diagonal 28.4 mm 43.2 mm
    Crop Factor 1.5x 1.0x
    Sensor Resolution 6 Megapixels 42.2 Megapixels
    Image Resolution 3008 x 2000 pixels 7952 x 5304 pixels
    Pixel Pitch 7.85 μm 4.52 μm
    Pixel Density 1.63 MP/cm2 4.90 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability no Video 4K/30p Video
    ISO Setting 200 - 1,600 ISO 100 - 25,600 ISO
    ISO Boost no Enhancement 50 - 102,400 ISO
    DXO Sensor Quality (score) .. 98
    DXO Color Depth (bits) .. 26.0
    DXO Dynamic Range (EV) .. 13.9
    DXO Low Light (ISO) .. 3434
    Screen Specs Epson R-D1 Sony A7R II
    Viewfinder Type Optical viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.78x
    Viewfinder Resolution 2400k dots
    LCD Framing Live View
    Rear LCD Size 2.0inch 3.0inch
    LCD Resolution 235k dots 1229k dots
    LCD Attachment Fixed screen Tilting screen
    Shooting Specs Epson R-D1 Sony A7R II
    Focus System Manual Focus On-Sensor Phase-detect
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/2000s 1/8000s
    Continuous Shooting 1 shutter flaps/s 5 shutter flaps/s
    Electronic Shutterno E-ShutterYES
    Image Stabilizationno shake reductionIn-body stabilization
    Fill Flash no On-Board Flash no On-Board Flash
    Storage Medium SDHC cards MS or SDXC cards
    Second Storage Option Single card slot Single card slot
    UHS card support no UHS-I
    Connectivity Specs Epson R-D1 Sony A7R II
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket no PC Sync
    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 Sony A7R II
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type EU-85 NP-FW50
    In-Camera Charging no USB charging USB charging
    Body Dimensions 142 x 89 x 40 mm
    (5.6 x 3.5 x 1.6 in)
    127 x 96 x 60 mm
    (5.0 x 3.8 x 2.4 in)
    Camera Weight 620 g (21.9 oz) 625 g (22.0 oz)
    Epson R-D1:
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    Sony A7R II:
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