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Epson R-D1 vs Sony A9 II

The Epson R-D1 and the Sony Alpha A9 II are two digital cameras that were revealed to the public, respectively, in March 2004 and October 2019. The R-D1 is a rangefinder-style mirrorless, while the A9 II is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (R-D1) and a full frame (A9 II) sensor. The Epson has a resolution of 6 megapixels, whereas the Sony provides 24 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 A9 II
Epson R-D1 Sony A9 II
Rangefinder camera Mirrorless system camera
Leica M mount lenses Sony E mount lenses
6 MP, APS-C Sensor 24 MP, Full Frame Sensor
no Video 4K/30p Video
ISO 200-1,600 ISO 100-51,200 (50 - 204,800)
Optical viewfinder Electronic viewfinder (3686k dots)
2.0 LCD, 235k dots 3.0 LCD, 1440k dots
Fixed screen (not touch-sensitive) Tilting touchscreen
1 shutter flaps per second 10 shutter flaps per second
no shake reductionIn-body stabilization
not weather sealedWeathersealed body
142 x 89 x 40 mm, 620 g 129 x 96 x 76 mm, 678 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Epson R-D1 and the Sony Alpha A9 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 A9 II. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All width, height and depth dimensions are rounded to the nearest millimeter.

Size Epson R-D1 vs Sony A9 II
Compare R-D1 versus A9 II top
Comparison R-D1 or A9 II rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A9 II is somewhat smaller (2 percent) than the Epson R-D1. However, the A9 II is markedly heavier (9 percent) than the R-D1. It is noteworthy in this context that the A9 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 (A9 II).

The power pack in the A9 II can be charged via the USB port, which can be very convenient when travelling.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. 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 2,999 i
2.
 
Sony A9 II 129 mm 96 mm 76 mm 678 g 690 Y Oct 2019 4,499 i
3.
 
Canon Rebel 142 mm 99 mm 72 mm 649 g 400 n Aug 2003 899 i
4.
 
Leica CL 131 mm 78 mm 45 mm 403 g 220 n Nov 2017 2,795 i
5.
 
Leica M10 139 mm 80 mm 39 mm 660 g 210 Y Jan 2017 6,595 i
6.
 
Leica X-U Typ 113 140 mm 79 mm 88 mm 635 g 450 Y Jan 2016 2,950 i
7.
 
Leica X Vario 133 mm 73 mm 95 mm 680 g 450 n Jun 2013 2,850 i
8.
 
Leica M9 139 mm 80 mm 37 mm 585 g .. n Sep 2009 7,999 i
9.
 
Nikon D40 124 mm 94 mm 64 mm 522 g 470 n Nov 2006 499 i
10.
 
Nikon D50 133 mm 102 mm 76 mm 620 g 400 n Apr 2005 749 i
11.
 
Nikon D70s 140 mm 111 mm 78 mm 679 g 500 n Apr 2005 899 i
12.
 
Nikon D70 140 mm 111 mm 78 mm 679 g 400 n Jan 2004 999 i
13.
 
Sony A7 III 127 mm 96 mm 74 mm 650 g 610 Y Feb 2018 1,999 i
14.
 
Sony A9 127 mm 96 mm 63 mm 673 g 650 Y Apr 2017 4,499 i
15.
 
Sony A7S II 127 mm 96 mm 60 mm 627 g 370 Y Sep 2015 2,999 i
16.
 
Sony A7 II 127 mm 96 mm 60 mm 599 g 350 Y Nov 2014 1,999 i
17.
 
Sony A99 147 mm 111 mm 78 mm 812 g 500 Y Sep 2012 2,799 i
Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.

Any camera decision will obviously take relative prices into account. 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 launched at a markedly lower price (by 33 percent) than the A9 II, 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. 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 imaging sensor is at the core of digital cameras and its size is one of the main determining factors 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. 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 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 A9 II a full frame sensor. The sensor area in the A9 II is 129 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 A9 II sensor measures

With 24MP, the A9 II offers a higher resolution than the R-D1 (6MP), but the A9 II has smaller individual pixels (pixel pitch of 5.94μm versus 7.85μm for the R-D1). Yet, the A9 II is a much more recent model (by 15 years and 6 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.

The resolution advantage of the Sony A9 II implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A9 II for good quality output (200 dots per inch) amounts to 30 x 20 inches or 76.2 x 50.8 cm, for very good quality (250 dpi) 24 x 16 inches or 61 x 40.6 cm, and for excellent quality (300 dpi) 20 x 13.3 inches or 50.8 x 33.9 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 A9 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 A9 II are ISO 100 to ISO 51200, with the possibility to increase the ISO range to 50-204800.

R-D1 versus A9 II MP

For many cameras, data on sensor performance has been reported by DXO Mark. 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 following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.

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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 2000none...... ..
2.
 
Sony A9 II Full Frame 24.0 6000 40004K/30p25.014.03434 93
3.
 
Canon Rebel APS-C 6.3 3072 2048none21.010.8544 55
4.
 
Leica CL APS-C 24.1 6014 40144K/30p...... ..
5.
 
Leica M10 Full Frame 23.8 5952 3992none24.413.22133 86
6.
 
Leica X-U Typ 113 APS-C 16.1 4928 32641080/30p...... ..
7.
 
Leica X Vario APS-C 16.1 4928 32721080/30p23.412.71320 78
8.
 
Leica M9 Full Frame 18.1 5212 3472none22.511.7884 69
9.
 
Nikon D40 APS-C 6.0 3008 2000none21.011.0561 56
10.
 
Nikon D50 APS-C 6.0 3008 2000none20.910.8560 55
11.
 
Nikon D70s APS-C 6.0 3008 2000none20.410.3529 50
12.
 
Nikon D70 APS-C 6.0 3008 2000none20.410.3529 50
13.
 
Sony A7 III Full Frame 24.0 6000 40004K/30p25.014.73730 96
14.
 
Sony A9 Full Frame 24.0 6000 40004K/30p24.913.33517 92
15.
 
Sony A7S II Full Frame 12.0 4240 28324K/30p23.613.32993 85
16.
 
Sony A7 II Full Frame 24.0 6000 40001080/60p24.913.62449 90
17.
 
Sony A99 Full Frame 24.0 6000 40001080/60p25.014.01555 89

Many modern cameras cannot only take still pictures, but also record videos. The A9 II indeed provides for movie recording, while the R-D1 does not. The highest resolution format that the A9 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 A9 II has an electronic viewfinder (3686k 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 Sony A9 II along with similar information for a selection of comparators.

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Core Features
    Camera
Model
Viewfinder
(Type or
000 dots)
Control
Panel
(yes/no)
LCD
Size
(inch)
LCD
Resolution
(000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Mech
Shutter
Speed
Shutter
Flaps
(1/sec)
Built-in
Flash
(yes/no)
Built-in
Image
Stab
1.
 
Epson R-D1optical n 2.0 235 fixed n 1/2000s 1.0 n n
2.
 
Sony A9 II3686 n 3.0 1440 tilting Y 1/8000s 10.0 n Y
3.
 
Canon Rebeloptical n 1.8 118 fixed n 1/4000s 2.5 Y n
4.
 
Leica CL2360 Y 3.0 1040 fixed Y 1/8000s 10.0 n n
5.
 
Leica M10optical n 3.0 1037 fixed n 1/4000s 5.0 n n
6.
 
Leica X-U Typ 113optional n 3.0 920 fixed n 1/2000s 5.0 Y n
7.
 
Leica X Variooptional n 3.0 920 fixed n 1/2000s 5.0 Y n
8.
 
Leica M9optical n 2.5 230 fixed n 1/4000s 2.0 n n
9.
 
Nikon D40optical n 2.5 230 fixed n 1/4000s 2.5 Y n
10.
 
Nikon D50optical n 2.0 130 fixed n 1/4000s 2.5 Y n
11.
 
Nikon D70soptical n 2.0 130 fixed n 1/8000s 3.0 Y n
12.
 
Nikon D70optical n 1.8 130 fixed n 1/8000s 3.0 Y n
13.
 
Sony A7 III2359 n 3.0 922 tilting Y 1/8000s 10.0 n Y
14.
 
Sony A93686 n 3.0 1440 tilting Y 1/8000s 20.0 n Y
15.
 
Sony A7S II2400 n 3.0 1229 tilting n 1/8000s 5.0 n Y
16.
 
Sony A7 II2400 n 3.0 1230 tilting n 1/8000s 5.0 n Y
17.
 
Sony A992359 Y 3.0 1229 full-flex n 1/8000s 6.0 n Y

One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The A9 II 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 A9 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 Sony A9 II 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 A9 II uses SDXC cards. The A9 II 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 A9 II supports UHS-II cards (on both slots), while the R-D1 cannot take advantage of Ultra High Speed SD cards.

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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 A9 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
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Epson R-D1Y---------
2.
 
Sony A9 IIYstereomonoYYmicro3.1YYY
3.
 
Canon RebelY-----1.1---
4.
 
Leica CLYstereomono----Y--
5.
 
Leica M10Y------Y--
6.
 
Leica X-U Typ 113Ystereomono---2.0---
7.
 
Leica X VarioYstereomono--mini2.0---
8.
 
Leica M9Y-----2.0---
9.
 
Nikon D40Y-----2.0---
10.
 
Nikon D50Y-----2.0---
11.
 
Nikon D70sY-----2.0---
12.
 
Nikon D70Y-----1.0---
13.
 
Sony A7 IIIYstereomonoYYmicro3.1YYY
14.
 
Sony A9YstereomonoYYmicro2.0YYY
15.
 
Sony A7S IIYstereomonoYYmicro2.0YY-
16.
 
Sony A7 IIYstereomonoYYmicro2.0YY-
17.
 
Sony A99YstereomonoYYmini2.0---

It is notable that the A9 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.

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

The A9 II is a recent model that features in the current product line-up of Sony. In contrast, the R-D1 has been discontinued (but can be found pre-owned on eBay). There has not been a direct replacement model for the R-D1 from Epson. 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 what conclusions can be drawn? Is there a clear favorite between the Epson R-D1 and the Sony A9 II? Which camera is better? The listing below highlights the relative strengths of the two models.

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Advantages of the Epson R-D1:

  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • More affordable: Was introduced into a lower priced category (33 percent cheaper at launch).
  • More heavily discounted: Has been available for much longer (launched in March 2004).

ilogo

Arguments in favor of the Sony Alpha A9 II:

  • More detail: Has more megapixels (24 vs 6MP), which boosts linear resolution by 100%.
  • 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 (1440k vs 235k dots).
  • More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
  • Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/2000s) to freeze action.
  • Faster burst: Shoots at higher frequency (10 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 device pairing: Supports NFC for fast wireless image transfer over short distances.
  • 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 modern: Reflects 15 years and 6 months of technical progress since the R-D1 launch.

If the number of relative strengths (bullet points above) is taken as a guide, the A9 II is the clear winner of the contest (25 : 3 points). However, the relative importance of the various individual camera aspects will vary according to personal preferences and needs, so that you might like to apply corresponding weights to the particular features before making a decision 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.

R-D1 03:25 A9 II

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 R-D1 or the A9 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 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], 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 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Epson R-D1.......... Mar 2004 2,999 i
2.
 
Sony A9 II....90/1005/55/5 Oct 2019 4,499 i
3.
 
Canon Rebel....+ +.... Aug 2003 899 i
4.
 
Leica CL........4/5 Nov 2017 2,795 i
5.
 
Leica M104.5/5....4/54.5/5 Jan 2017 6,595 i
6.
 
Leica X-U Typ 1133.5/5......3.5/5 Jan 2016 2,950 i
7.
 
Leica X Vario3/5....4/54/5 Jun 2013 2,850 i
8.
 
Leica M9......4.5/5.. Sep 2009 7,999 i
9.
 
Nikon D40..81/100+ +o4.5/5 Nov 2006 499 i
10.
 
Nikon D50..78/100+ +4/54.5/5 Apr 2005 749 i
11.
 
Nikon D70s........5/5 Apr 2005 899 i
12.
 
Nikon D70....+ +.... Jan 2004 999 i
13.
 
Sony A7 III..+ +89/1005/55/5 Feb 2018 1,999 i
14.
 
Sony A95/5+ +89/1005/55/5 Apr 2017 4,499 i
15.
 
Sony A7S II5/5+..4.5/55/5 Sep 2015 2,999 i
16.
 
Sony A7 II5/5+82/1004.5/55/5 Nov 2014 1,999 i
17.
 
Sony A995/5..84/1004.5/54.5/5 Sep 2012 2,799 i
Notes: (+ +) 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 comparing ratings of very distinct cameras or ones that are far apart in terms of their release date 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:
Check Ebay offers
Sony A9 II:
Check Amazon price

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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    Specifications: Epson R-D1 vs Sony A9 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 A9 II
    Camera Type Rangefinder camera Mirrorless system camera
    Camera Lens Leica M mount lenses Sony E mount lenses
    Launch Date March 2004 October 2019
    Launch Price USD 2,999 USD 4,499
    Sensor Specs Epson R-D1 Sony A9 II
    Sensor Technology CCD BSI-CMOS
    Sensor Format APS-C Sensor Full Frame Sensor
    Sensor Size 23.7 x 15.6 mm 35.6 x 23.8 mm
    Sensor Area 369.72 mm2 847.28 mm2
    Sensor Diagonal 28.4 mm 42.8 mm
    Crop Factor 1.5x 1.0x
    Sensor Resolution 6 Megapixels 24 Megapixels
    Image Resolution 3008 x 2000 pixels 6000 x 4000 pixels
    Pixel Pitch 7.85 μm 5.94 μm
    Pixel Density 1.63 MP/cm2 2.83 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability no Video 4K/30p Video
    ISO Setting 200 - 1,600 ISO 100 - 51,200 ISO
    ISO Boost no Enhancement 50 - 204,800 ISO
    DXO Sensor Quality (score) .. 93
    DXO Color Depth (bits) .. 25.0
    DXO Dynamic Range (EV) .. 14.0
    DXO Low Light (ISO) .. 3434
    Screen Specs Epson R-D1 Sony A9 II
    Viewfinder Type Optical viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.78x
    Viewfinder Resolution 3686k dots
    LCD Framing Live View
    Rear LCD Size 2.0inch 3.0inch
    LCD Resolution 235k dots 1440k dots
    LCD Attachment Fixed screen Tilting screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Epson R-D1 Sony A9 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 10 shutter flaps/s
    Electronic Shutterno E-Shutterup to 1/32000s
    Time-Lapse Photographyno IntervalometerIntervalometer built-in
    Image Stabilizationno shake reductionIn-body stabilization
    Fill Flash no On-Board Flash no On-Board Flash
    Storage Medium SDHC cards SDXC cards
    Second Storage Option Single card slot Dual card slots
    UHS card support no Dual UHS-II
    Connectivity Specs Epson R-D1 Sony A9 II
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket PC Sync socket
    USB Connector no USB USB 3.1
    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
    Bluetooth Support no Bluetooth Bluetooth built-in
    Body Specs Epson R-D1 Sony A9 II
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type EU-85 NP-FZ100
    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)
    129 x 96 x 76 mm
    (5.1 x 3.8 x 3.0 in)
    Camera Weight 620 g (21.9 oz) 678 g (23.9 oz)

    Did you notice an error on this page? If so, please get in touch, so that we can correct the information.

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