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Epson R-D1 vs Olympus E-M1 II

The Epson R-D1 and the Olympus OM-D E-M1 Mark II are two enthusiast cameras that were announced, respectively, in March 2004 and September 2016. The R-D1 is a fixed lens compact, while the E-M1 II is a rangefinder-style mirrorless. The cameras are based on an APS-C (R-D1) and a Four Thirds (E-M1 II) sensor. The Epson has a resolution of 6 megapixels, whereas the Olympus provides 20.2 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   Olympus E-M1 II
Epson R-D1 Olympus E-M1 II
Rangefinder camera Mirrorless system camera
Leica M mount lenses Micro Four Thirds lenses
6 MP, APS-C Sensor 20.2 MP, Four Thirds Sensor
no Video 4K/30p Video
ISO 200-1600 ISO 200-25600
Optical viewfinder Electronic viewfinder (2360k dots)
2.0" LCD, 235k dots 3.0" LCD, 1037k dots
Fixed screen (not touch-sensitive) Swivel touchscreen
1 shutter flaps per second 18 shutter flaps per second
No shake reductionIn-body stabilization
Not weather sealedWeathersealed body
142 x 89 x 40 mm, 620 g 134 x 91 x 67 mm, 574 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Epson R-D1 and the Olympus OM-D E-M1 Mark 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 Olympus E-M1 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 Olympus E-M1 II
Compare R-D1 versus E-M1 II top
Comparison R-D1 or E-M1 II rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Olympus E-M1 II is somewhat smaller (4 percent) than the Epson R-D1. Moreover, the E-M1 II is markedly lighter (7 percent) than the R-D1. It is noteworthy in this context that the E-M1 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 Micro Four Thirds Lens Catalog (E-M1 II).

The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. 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.

Camera Body Specifications
  Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
(CIPA)
Weather
Sealing
(yes/no)
Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
 
Epson R-D1» 5.6 in 3.5 in 1.6 in 21.9 oz .. n Mar 2004 2,999- i Epson R-D1
 
Olympus E-M1 II« 5.3 in 3.6 in 2.6 in 20.2 oz 440 Y Sep 2016 1,999 i i Olympus E-M1 II
 
Canon Rebel« » 5.6 in 3.9 in 2.8 in 22.9 oz 400 n Aug 2003 899- i Canon Rebel
 
Leica CL« » 5.2 in 3.1 in 1.8 in 14.2 oz 220 n Nov 2017 2,795 i i Leica CL
 
Leica M10« » 5.5 in 3.1 in 1.5 in 23.3 oz 210 Y Jan 2017 6,595 i i Leica M10
 
Leica X-U Typ 113« » 5.5 in 3.1 in 3.5 in 22.4 oz 450 Y Jan 2016 2,950 i i Leica X-U Typ 113
 
Leica X Vario« » 5.2 in 2.9 in 3.7 in 24.0 oz 450 n Jun 2013 2,850 i i Leica X Vario
 
Leica M9« » 5.5 in 3.1 in 1.5 in 20.6 oz .. n Sep 2009 7,999- i Leica M9
 
Nikon D40« » 4.9 in 3.7 in 2.5 in 18.4 oz 470 n Nov 2006 499- i Nikon D40
 
Nikon D50« » 5.2 in 4.0 in 3.0 in 21.9 oz 400 n Apr 2005 749- i Nikon D50
 
Nikon D70s« » 5.5 in 4.4 in 3.1 in 24.0 oz 500 n Apr 2005 899- i Nikon D70s
 
Nikon D70« » 5.5 in 4.4 in 3.1 in 24.0 oz 400 n Jan 2004 999- i Nikon D70
 
Olympus E-M5 II« » 4.9 in 3.3 in 1.8 in 16.5 oz 310 Y Feb 2015 1,099 i i Olympus E-M5 II
 
Olympus E-M1« » 5.1 in 3.7 in 2.5 in 17.5 oz 350 Y Sep 2013 1,399- i Olympus E-M1
 
Panasonic G9« » 5.4 in 3.8 in 3.6 in 23.2 oz 400 Y Nov 2017 1,699 i i Panasonic G9
 
Panasonic GH5« » 5.5 in 3.9 in 3.4 in 25.6 oz 410 Y Jan 2017 1,999 i i Panasonic GH5
 
Panasonic GX8« » 5.2 in 3.1 in 2.5 in 17.2 oz 330 Y Jul 2015 1,199- i Panasonic GX8
Note: Measurements and pricing do not include easily detachable parts, such as interchangeable lenses or optional viewfinders.

Any camera decision will naturally be influenced heavily by the price. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The E-M1 II was launched at a markedly lower price (by 33 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.

 

Sensor comparison

The size of the sensor inside a digital camera is one of the key determinants of image quality. 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 associated with larger, more expensive camera bodies and lenses.

Of the two cameras under consideration, the Epson R-D1 features an APS-C sensor and the Olympus E-M1 II a Four Thirds sensor. The sensor area in the E-M1 II 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 E-M1 II offers a 4:3 aspect.

Epson R-D1 and Olympus E-M1 II sensor measures

Despite having a smaller sensor, the E-M1 II offers a higher resolution of 20.2 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 3.34μm versus 7.85μm for the R-D1). However, it should be noted that the E-M1 II is much more recent (by 12 years and 6 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 E-M1 II has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Olympus E-M1 II implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the E-M1 II for good quality output (200 dots per inch) amounts to 25.9 x 19.4 inch or 65.8 x 49.4 cm, for very good quality (250 dpi) 20.7 x 15.6 inch or 52.7 x 39.5 cm, and for excellent quality (300 dpi) 17.3 x 13 inch or 43.9 x 32.9 cm. The corresponding values for the Epson R-D1 are 15 x 10 inch or 38.2 x 25.4 cm for good quality, 12 x 8 inch or 30.6 x 20.3 cm for very good quality, and 10 x 6.7 inch or 25.5 x 16.9 cm for excellent quality prints.

The E-M1 II has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

Unlike the R-D1, the E-M1 II has the capacity to capture high quality composite images (50MP) by combining multiple shots after shifting its sensor by miniscule distances. This multi-shot, pixel-shift mode is most suitable for photography of stationary objects (landscapes, studio scenes).

The Epson R-D1 has a native sensitivity range from ISO 200 to ISO 1600. The corresponding ISO settings for the Olympus OM-D E-M1 Mark II are ISO 200 to ISO 25600, with the possibility to increase the ISO range to 64-25600.

R-D1 versus E-M1 II MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. This service is based on lab testing and assigns an overall score to each camera sensor, as well as ratings for dynamic range ("DXO Landscape"), color depth ("DXO Portrait"), and low-light sensitivity ("DXO Sports"). The 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
Camera
Model
 
Epson R-D1» APS-C 6.0 3008 2000-----Epson R-D1
 
Olympus E-M1 II« Four Thirds 20.2 5184 38884K/30p23.712.8131280Olympus E-M1 II
 
Canon Rebel« » APS-C 6.3 3072 2048-21.010.854455Canon Rebel
 
Leica CL« » APS-C 24.1 6014 40144K/30p----Leica CL
 
Leica M10« » Full Frame 23.8 5952 3992-24.413.2213386Leica M10
 
Leica X-U Typ 113« » APS-C 16.1 4928 32641080/30p----Leica X-U Typ 113
 
Leica X Vario« » APS-C 16.1 4928 32721080/30p23.412.7132078Leica X Vario
 
Leica M9« » Full Frame 18.1 5212 3472-22.511.788469Leica M9
 
Nikon D40« » APS-C 6.0 3008 2000-21.011.056156Nikon D40
 
Nikon D50« » APS-C 6.0 3008 2000-20.910.856055Nikon D50
 
Nikon D70s« » APS-C 6.0 3008 2000-20.410.352950Nikon D70s
 
Nikon D70« » APS-C 6.0 3008 2000-20.410.352950Nikon D70
 
Olympus E-M5 II« » Four Thirds 15.9 4608 34561080/60p23.012.584273Olympus E-M5 II
 
Olympus E-M1« » Four Thirds 15.9 4608 34561080/30p23.012.775773Olympus E-M1
 
Panasonic G9« » Four Thirds 20.2 5184 38884K/60p----Panasonic G9
 
Panasonic GH5« » Four Thirds 20.2 5184 38884K/60p23.913.080777Panasonic GH5
 
Panasonic GX8« » Four Thirds 20.2 5184 38884K/30p23.512.680675Panasonic GX8

Many modern cameras are not only capable of taking still images, but also of capturing video footage. The E-M1 II indeed provides for movie recording, while the R-D1 does not. The highest resolution format that the E-M1 II can use is 4K/30p.

 

Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. For example, the E-M1 II has an electronic viewfinder (2360k 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 Olympus E-M1 II along with similar information for a selection of comparators.

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
Camera
Model
 
Epson R-D1»optical n 2.0 235 fixed n 1/2000s 1.0 n n Epson R-D1
 
Olympus E-M1 II«2360 n 3.0 1037 swivel Y 1/8000s 18.0 n Y Olympus E-M1 II
 
Canon Rebel« »optical n 1.8 118 fixed n 1/4000s 2.5 Y n Canon Rebel
 
Leica CL« »2360 Y 3.0 1040 fixed Y 1/8000s 10.0 n n Leica CL
 
Leica M10« »optical n 3.0 1037 fixed n 1/4000s 5.0 n n Leica M10
 
Leica X-U Typ 113« »- n 3.0 920 fixed n 1/2000s 5.0 Y n Leica X-U Typ 113
 
Leica X Vario« »- n 3.0 920 fixed n 1/2000s 5.0 Y n Leica X Vario
 
Leica M9« »optical n 2.5 230 fixed n 1/4000s 2.0 n n Leica M9
 
Nikon D40« »optical n 2.5 230 fixed n 1/4000s 2.5 Y n Nikon D40
 
Nikon D50« »optical n 2.0 130 fixed n 1/4000s 2.5 Y n Nikon D50
 
Nikon D70s« »optical n 2.0 130 fixed n 1/8000s 3.0 Y n Nikon D70s
 
Nikon D70« »optical n 1.8 130 fixed n 1/8000s 3.0 Y n Nikon D70
 
Olympus E-M5 II« »2360 n 3.0 1037 swivel Y 1/8000s 10.0 n Y Olympus E-M5 II
 
Olympus E-M1« »2360 n 3.0 1037 tilting Y 1/8000s 10.0 n Y Olympus E-M1
 
Panasonic G9« »3680 Y 3.0 1040 swivel Y 1/8000s 20.0 n Y Panasonic G9
 
Panasonic GH5« »3680 n 3.2 1620 swivel Y 1/8000s 12.0 n Y Panasonic GH5
 
Panasonic GX8« »2360 n 3.0 1040 swivel Y 1/8000s 10.0 n Y Panasonic GX8

One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The E-M1 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 E-M1 II 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 E-M1 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 Olympus E-M1 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 E-M1 II uses SDXC cards. The E-M1 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 E-M1 II supports UHS-II cards on its first slot and UHS-I on its second one, 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 Olympus OM-D E-M1 Mark II 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
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Type
WiFi
Support
NFC
Support
Bluetooth
Support
Camera
Model
 
Epson R-D1»Y---------Epson R-D1
 
Olympus E-M1 II«YstereomonoYYmicro3.0Y--Olympus E-M1 II
 
Canon Rebel« »Y-----1.1---Canon Rebel
 
Leica CL« »Ystereomono----Y--Leica CL
 
Leica M10« »Y------Y--Leica M10
 
Leica X-U Typ 113« »Ystereomono---2.0---Leica X-U Typ 113
 
Leica X Vario« »Ystereomono--mini2.0---Leica X Vario
 
Leica M9« »Y-----2.0---Leica M9
 
Nikon D40« »Y-----2.0---Nikon D40
 
Nikon D50« »Y-----2.0---Nikon D50
 
Nikon D70s« »Y-----2.0---Nikon D70s
 
Nikon D70« »Y-----1.0---Nikon D70
 
Olympus E-M5 II« »YstereomonoY-micro2.0Y--Olympus E-M5 II
 
Olympus E-M1« »YstereomonoY-micro2.0Y--Olympus E-M1
 
Panasonic G9« »YstereomonoYYfull3.0Y-YPanasonic G9
 
Panasonic GH5« »YstereomonoYYfull3.1Y-YPanasonic GH5
 
Panasonic GX8« »YstereomonoY-micro2.0YY-Panasonic GX8

It is notable that the E-M1 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 offer wifi capability.

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

The E-M1 II is a recent model that features in the current product line-up of Olympus. In contrast, the R-D1 has been discontinued (but it 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 Olympus websites.


Review summary

So how do things add up? Is there a clear favorite between the Epson R-D1 and the Olympus E-M1 II? Which camera is better? 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.
  • More heavily discounted: Has been available for much longer (launched in March 2004).

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Arguments in favor of the Olympus OM-D E-M1 Mark II:

  • More detail: Has more megapixels (20.2 vs 6MP), which boosts linear resolution by 79%.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • High quality composites: Can combine several shots after pixel-shifting its sensor.
  • 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 (1037k 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 (18 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.
  • 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.
  • 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 and UHS-I) SDXC cards.
  • More affordable: Was introduced into a lower priced category (33 percent cheaper at launch).
  • More modern: Reflects 12 years and 6 months of technical progress since the R-D1 launch.

If the count of individual advantages (bullet points above) is taken as a guide, the E-M1 II is the clear winner of the contest (22 : 3 points). However, the relevance of individual strengths will vary across photographers, so that you might want to apply your own weighing scheme to the summary points when reflecting and deciding on a new camera. A professional 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 03:22 E-M1 II

In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it says little about, for example, the shooting experience and imaging performance of the R-D1 and the E-M1 II in practical situations. 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.

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 (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.

Review Scores
  Camera
Model
cameralabs dpreview ephotozine imaging-resource photographyblog Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
 
Epson R-D1»----- Mar 2004 2,999- i Epson R-D1
 
Olympus E-M1 II«+ +85/1004.5/55/54.5/5 Sep 2016 1,999 i i Olympus E-M1 II
 
Canon Rebel« »-+ +-o- Aug 2003 899- i Canon Rebel
 
Leica CL« »----4/5 Nov 2017 2,795 i i Leica CL
 
Leica M10« »--4/5-4.5/5 Jan 2017 6,595 i i Leica M10
 
Leica X-U Typ 113« »----3.5/5 Jan 2016 2,950 i i Leica X-U Typ 113
 
Leica X Vario« »--4/54/54/5 Jun 2013 2,850 i i Leica X Vario
 
Leica M9« »--4.5/54.5/5- Sep 2009 7,999- i Leica M9
 
Nikon D40« »81/100+ +o5/54.5/5 Nov 2006 499- i Nikon D40
 
Nikon D50« »78/100+ +4/5o4.5/5 Apr 2005 749- i Nikon D50
 
Nikon D70s« »---o5/5 Apr 2005 899- i Nikon D70s
 
Nikon D70« »-+ +-o- Jan 2004 999- i Nikon D70
 
Olympus E-M5 II« »+ +81/1005/54.5/55/5 Feb 2015 1,099 i i Olympus E-M5 II
 
Olympus E-M1« »+ +84/1004.5/54.5/54.5/5 Sep 2013 1,399- i Olympus E-M1
 
Panasonic G9« »+ +85/1005/55/55/5 Nov 2017 1,699 i i Panasonic G9
 
Panasonic GH5« »+ +85/1004.5/55/55/5 Jan 2017 1,999 i i Panasonic GH5
 
Panasonic GX8« »+82/1004.5/55/54.5/5 Jul 2015 1,199- i Panasonic GX8
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. 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
Olympus E-M1 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 a corresponding selection in the search boxes below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Epson R-D1 vs Olympus E-M1 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 Olympus E-M1 II
    Camera Type Rangefinder camera Mirrorless system camera
    Camera Lens Leica M mount lenses Micro Four Thirds lenses
    Launch Date March 2004 September 2016
    Launch Price USD 2999 USD 1999
    Sensor Specs Epson R-D1 Olympus E-M1 II
    Sensor Technology CCD CMOS
    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
    Crop Factor 1.5x 2.0x
    Sensor Resolution 6 Megapixels 20.2 Megapixels
    Image Resolution 3008 x 2000 pixels 5184 x 3888 pixels
    Pixel Pitch 7.85 μm 3.34 μm
    Pixel Density 1.63 MP/cm2 8.96 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability no Video 4K/30p Video
    ISO Setting 200-1600 ISO 200-25600 ISO
    ISO Boost no Enhancement 64-25600 ISO
    DXO Sensor Quality (score) .. 80
    DXO Color Depth (bits) .. 23.7
    DXO Dynamic Range (EV) .. 12.8
    DXO Low Light (ISO) .. 1312
    Screen Specs Epson R-D1 Olympus E-M1 II
    Viewfinder Type Optical viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification ..x 0.74x
    Viewfinder Resolution 2360k dots
    LCD Framing Live View
    Rear LCD Size 2.0 inch 3.0 inch
    LCD Resolution 235k dots 1037k dots
    LCD Attachment Fixed screen Swivel screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Epson R-D1 Olympus E-M1 II
    Autofocus System Contrast-detect AF On-Sensor Phase-detect
    Manual Focusing AidNo Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/2000/s 1/8000/s
    Continuous Shooting 1 shutter flaps/s 18 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 Single UHS-II
    Connectivity Specs Epson R-D1 Olympus E-M1 II
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket PC Sync socket
    USB Connector USB no USB 3.0
    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
    Body Specs Epson R-D1 Olympus E-M1 II
    Environmental SealingNot weather sealedWeathersealed body
    Battery Type EU-85 BLH-1
    Body Dimensions 142 x 89 x 40 mm
    (5.6 x 3.5 x 1.6 in)
    134 x 91 x 67 mm
    (5.3 x 3.6 x 2.6 in)
    Camera Weight 620 g (21.9 oz) 574 g (20.2 oz)

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