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Epson R-D1 vs Sony A99 II

The Epson R-D1 and the Sony Alpha ALT-A99 II are two digital cameras that were announced, respectively, in March 2004 and September 2016. The R-D1 is a rangefinder-style mirrorless camera, while the A99 II is a DSLR. The cameras are based on an APS-C (R-D1) and a full frame (A99 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   VS Sony A99 II
Epson R-D1 Sony A99 II
Rangefinder camera Digital single lens reflex
Leica M mount lenses Sony A mount lenses
6 MP, APS-C Sensor 42.2 MP, Full Frame Sensor
no Video 4K/30p Video
ISO 200-1600 ISO 100-25600
Optical viewfinder Electronic viewfinder (2400k dots)
2.0" LCD, 235k dots 3.0" LCD, 1229k dots
Fixed screen (not touch-sensitive) Fully flexible screen (no touchscreen)
1 shutter flaps per second 12 shutter flaps per second
No shake reductionIn-body stabilization
Not weather sealedWeathersealed body
142 x 89 x 40 mm, 620 g 143 x 104 x 76 mm, 849 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Epson R-D1 and the Sony Alpha ALT-A99 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 physical size and weight of the Epson R-D1 and the Sony A99 II are illustrated in the side-by-side display below. 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 A99 II
Compare R-D1 versus A99 II top
Comparison R-D1 or A99 II rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A99 II is notably larger (18 percent) than the Epson R-D1. Moreover, the A99 II is substantially heavier (37 percent) than the R-D1. It is noteworthy in this context that the A99 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. Hence, you might want to study and compare the specifications of available lenses in order to get the full picture of the size and weight of the two camera systems.

The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. If you would like to visualize and compare a different camera combination, just use the right or left arrows in the table to switch to the respective camera. Alternatively, you can also navigate to the CAM-parator app and make your selection from the full list of cameras there.

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)
Camera
Model
 
Epson R-D1» 5.6 in 3.5 in 1.6 in 21.9 oz .. n Mar 2004 2,999iEpson R-D1
 
Sony A99 II« 5.6 in 4.1 in 3.0 in 29.9 oz 490 Y Sep 2016 3,199 iSony A99 II
 
Canon 5DS R« » 6.0 in 4.6 in 3.0 in 32.8 oz 700 Y Feb 2015 3,699 iCanon 5DS R
 
Canon Rebel« » 5.6 in 3.9 in 2.8 in 22.9 oz 400 n Aug 2003 899iCanon Rebel
 
Leica CL« » 5.2 in 3.1 in 1.8 in 14.2 oz 220 n Nov 2017 2,795 iLeica CL
 
Leica M10« » 5.5 in 3.1 in 1.5 in 23.3 oz 210 Y Jan 2017 6,595 iLeica M10
 
Leica X-U Typ 113« » 5.5 in 3.1 in 3.5 in 22.4 oz 450 Y Jan 2016 2,950 iLeica 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 iLeica X Vario
 
Leica M9« » 5.5 in 3.1 in 1.5 in 20.6 oz .. n Sep 2009 7,999iLeica M9
 
Nikon D850« » 5.7 in 4.9 in 3.1 in 35.5 oz 1840 Y Jul 2017 3,299 iNikon D850
 
Nikon D40« » 4.9 in 3.7 in 2.5 in 18.4 oz 470 n Nov 2006 499iNikon D40
 
Nikon D50« » 5.2 in 4.0 in 3.0 in 21.9 oz 400 n Apr 2005 749iNikon D50
 
Nikon D70s« » 5.5 in 4.4 in 3.1 in 24.0 oz 500 n Apr 2005 899iNikon D70s
 
Nikon D70« » 5.5 in 4.4 in 3.1 in 24.0 oz 400 n Jan 2004 999iNikon D70
 
Sony A7R II« » 5.0 in 3.8 in 2.4 in 22.0 oz 290 Y Jun 2015 3,199iSony A7R II
 
Sony A7S II« » 5.0 in 3.8 in 2.4 in 22.1 oz 370 Y Sep 2015 2,999 iSony A7S II
 
Sony A99« » 5.8 in 4.4 in 3.1 in 28.6 oz 500 Y Sep 2012 2,799iSony A99
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 R-D1 was somewhat cheaper (by 6 percent) than the A99 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.

 

Sensor comparison

The size of the imaging sensor is a crucial determinant of image quality. A large sensor will generally have larger individual pixels that offer better low-light sensitivity, provide wider dynamic range, and have 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 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 Sony A99 II a full frame sensor. The sensor area in the A99 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 A99 II sensor measures

With 42.2MP, the A99 II offers a higher resolution than the R-D1 (6MP), but the A99 II has smaller individual pixels (pixel pitch of 4.52μm versus 7.85μm for the R-D1). Yet, the A99 II is a much more recent model (by 12 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. Coming back to sensor resolution, it should be mentioned that the A99 II has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Sony A99 II implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A99 II for good quality output (200 dots per inch) amounts to 39.8 x 26.5 inch or 101 x 67.4 cm, for very good quality (250 dpi) 31.8 x 21.2 inch or 80.8 x 53.9 cm, and for excellent quality (300 dpi) 26.5 x 17.7 inch or 67.3 x 44.9 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 A99 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 ALT-A99 II are ISO 100 to ISO 25600, with the possibility to increase the ISO range to 50-25600.

R-D1 versus A99 II MP

Consistent information on actual sensor performance is available from DXO Mark for many cameras. 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 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 2000none........Epson R-D1
 
Sony A99 II Full Frame 42.2 7952 53044K/30p25.413.4231792Sony A99 II
 
Canon 5DS R Full Frame 50.3 8688 57921080/30p24.612.4230886Canon 5DS R
 
Canon Rebel APS-C 6.3 3072 2048none21.010.854455Canon Rebel
 
Leica CL APS-C 24.1 6014 40144K/30p........Leica CL
 
Leica M10 Full Frame 23.8 5952 3992none24.413.2213386Leica 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 3472none22.511.788469Leica M9
 
Nikon D850 Full Frame 45.4 8256 55044K/30p26.414.82660100Nikon D850
 
Nikon D40 APS-C 6.0 3008 2000none21.011.056156Nikon D40
 
Nikon D50 APS-C 6.0 3008 2000none20.910.856055Nikon D50
 
Nikon D70s APS-C 6.0 3008 2000none20.410.352950Nikon D70s
 
Nikon D70 APS-C 6.0 3008 2000none20.410.352950Nikon D70
 
Sony A7R II Full Frame 42.2 7952 53044K/30p26.013.9343498Sony A7R II
 
Sony A7S II Full Frame 12.0 4240 28324K/30p23.613.3299385Sony A7S II
 
Sony A99 Full Frame 24.0 6000 40001080/60p25.014.0155589Sony A99

Many modern cameras are not only capable of taking still images, but can also record movies. The A99 II indeed provides for movie recording, while the R-D1 does not. The highest resolution format that the A99 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 A99 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 adjacent table lists some of the other core features of the Epson R-D1 and Sony A99 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-D1optical n 2.0 235 fixed n 1/2000s 1.0 n n Epson R-D1
 
Sony A99 II2400 Y 3.0 1229 full-flex n 1/8000s 12.0 n Y Sony A99 II
 
Canon 5DS Roptical Y 3.2 1040 fixed n 1/8000s 5.0 n n Canon 5DS R
 
Canon Rebeloptical n 1.8 118 fixed n 1/4000s 2.5 Y n Canon Rebel
 
Leica CL2360 Y 3.0 1040 fixed Y 1/8000s 10.0 n n Leica CL
 
Leica M10optical n 3.0 1037 fixed n 1/4000s 5.0 n n Leica M10
 
Leica X-U Typ 113optional n 3.0 920 fixed n 1/2000s 5.0 Y n Leica X-U Typ 113
 
Leica X Variooptional n 3.0 920 fixed n 1/2000s 5.0 Y n Leica X Vario
 
Leica M9optical n 2.5 230 fixed n 1/4000s 2.0 n n Leica M9
 
Nikon D850optical Y 3.2 2359 tilting Y 1/8000s 9.0 n n Nikon D850
 
Nikon D40optical n 2.5 230 fixed n 1/4000s 2.5 Y n Nikon D40
 
Nikon D50optical n 2.0 130 fixed n 1/4000s 2.5 Y n Nikon D50
 
Nikon D70soptical n 2.0 130 fixed n 1/8000s 3.0 Y n Nikon D70s
 
Nikon D70optical n 1.8 130 fixed n 1/8000s 3.0 Y n Nikon D70
 
Sony A7R II2400 n 3.0 1229 tilting n 1/8000s 5.0 n Y Sony A7R II
 
Sony A7S II2400 n 3.0 1229 tilting n 1/8000s 5.0 n Y Sony A7S II
 
Sony A992359 Y 3.0 1229 full-flex n 1/8000s 6.0 n Y Sony A99

One feature that is present on the A99 II, but is missing on the R-D1 is a top-level LCD. While being, of course, smaller than the rear screen, the control panel conveys some of the essential shooting information and can be convenient for quick and easy settings verification.

The A99 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 R-D1 writes its imaging data to SDHC cards, while the A99 II uses SDXC or Memory Stick PRO Duo cards. The A99 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 A99 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 ALT-A99 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
Port
WiFi
Support
NFC
Support
Bluetooth
Support
Camera
Model
 
Epson R-D1Ynonenone--nonenone---Epson R-D1
 
Sony A99 IIYstereomonoYYmicro2.0YYYSony A99 II
 
Canon 5DS RYmonomonoY-mini3.0---Canon 5DS R
 
Canon RebelYnonenone--none1.1---Canon Rebel
 
Leica CLYstereomono--nonenoneY--Leica CL
 
Leica M10Ynonenone--nonenoneY--Leica M10
 
Leica X-U Typ 113Ystereomono--none2.0---Leica X-U Typ 113
 
Leica X VarioYstereomono--mini2.0---Leica X Vario
 
Leica M9Ynonenone--none2.0---Leica M9
 
Nikon D850YstereomonoYYmini3.0YYYNikon D850
 
Nikon D40Ynonenone--none2.0---Nikon D40
 
Nikon D50Ynonenone--none2.0---Nikon D50
 
Nikon D70sYnonenone--none2.0---Nikon D70s
 
Nikon D70Ynonenone--none1.0---Nikon D70
 
Sony A7R IIYstereomonoYYmicro2.0YY-Sony A7R II
 
Sony A7S IIYstereomonoYYmicro2.0YY-Sony A7S II
 
Sony A99YstereomonoYYmini2.0---Sony A99

It is notable that the A99 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 A99 II is a recent model that features in the current product line-up of Sony. 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 Sony websites.

Review summary

So what conclusions can be drawn? Is the Epson R-D1 better than the Sony A99 II or vice versa? The listing below highlights the relative strengths of the two models.

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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 compact: Is smaller (142x89mm vs 143x104mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 229g or 27 percent) and hence easier to carry around.
  • More heavily discounted: Has been available for much longer (launched in March 2004).

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Arguments in favor of the Sony Alpha ALT-A99 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.
  • Easier setting verification: Features a control panel on top to check shooting parameters.
  • 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 full-flex screen for odd-angle shots in portrait or landscape orientation.
  • 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.
  • 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: Has an SD card interface that supports the UHS-I standard.
  • More modern: Reflects 12 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 A99 II is the clear winner of the contest (24 : 5 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 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.

R-D1 05:24 A99 II

In any case, while the comparison of technical specifications can provide a useful overview of the capabilities of different cameras, it remains incomplete and does no justice, for example, to the way the R-D1 or the A99 II perform in practice. User reviews that are available, for instance, at amazon can sometimes shed light on these issues, but such feedback is all too often partial, inconsistent, and inaccurate.

Expert reviews

This is why hands-on reviews by experts are important. The following table reports the overall ratings of the cameras as published by some of the major 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
cam
era
  labs  
dp
re
  view  
e
photo
  zine  
ima
ging
resource
photo
graphy
  blog  
Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Camera
Model
 
Epson R-D1.......... Mar 2004 2,999iEpson R-D1
 
Sony A99 II..85/1004.5/54.5/54.5/5 Sep 2016 3,199 iSony A99 II
 
Canon 5DS R+83/1005/55/54.5/5 Feb 2015 3,699 iCanon 5DS R
 
Canon Rebel..+ +..o.. Aug 2003 899iCanon Rebel
 
Leica CL........4/5 Nov 2017 2,795 iLeica CL
 
Leica M10....4/5..4.5/5 Jan 2017 6,595 iLeica M10
 
Leica X-U Typ 113........3.5/5 Jan 2016 2,950 iLeica X-U Typ 113
 
Leica X Vario....4/54/54/5 Jun 2013 2,850 iLeica X Vario
 
Leica M9....4.5/54.5/5.. Sep 2009 7,999iLeica M9
 
Nikon D850+ +89/1004.5/55/55/5 Jul 2017 3,299 iNikon D850
 
Nikon D4081/100+ +o5/54.5/5 Nov 2006 499iNikon D40
 
Nikon D5078/100+ +4/5o4.5/5 Apr 2005 749iNikon D50
 
Nikon D70s......o5/5 Apr 2005 899iNikon D70s
 
Nikon D70..+ +..o.. Jan 2004 999iNikon D70
 
Sony A7R II+ +90/1005/54.5/55/5 Jun 2015 3,199iSony A7R II
 
Sony A7S II+..4.5/55/55/5 Sep 2015 2,999 iSony A7S II
 
Sony A99..84/1004.5/5o4.5/5 Sep 2012 2,799iSony A99
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The review scores listed above should be treated with care, though. The assessments were made in relation to similar cameras of the same technological generation. Hence, a score should always be seen in the context of the camera's market launch date and its price, 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 A99 II:
Check Amazon price

Other camera comparisons

Did this review help to inform your camera decision process? If you would like to see a different side-by-side camera review, just use the search menu below. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.

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    Specifications: Epson R-D1 vs Sony A99 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 A99 II
    Camera Type Rangefinder camera Digital single lens reflex
    Camera Lens Leica M mount lenses Sony A mount lenses
    Launch Date March 2004 September 2016
    Launch Price USD 2999 USD 3199
    Sensor Specs Epson R-D1 Sony A99 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 200-1600 ISO 100-25600 ISO
    ISO Boost no Enhancement 50-25600 ISO
    DXO Sensor Quality (score) .. 92
    DXO Color Depth (bits) .. 25.4
    DXO Dynamic Range (EV) .. 13.4
    DXO Low Light (ISO) .. 2317
    Screen Specs Epson R-D1 Sony A99 II
    Viewfinder Type Optical viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification ..x 0.78x
    Viewfinder Resolution 2400k dots
    Top-Level Screen no Top Display Control Panel
    LCD Framing Live View
    Rear LCD Size 2.0 inch 3.0 inch
    LCD Resolution 235k dots 1229k dots
    LCD Attachment Fixed screen Fully flexible screen
    Shooting Specs Epson R-D1 Sony A99 II
    Autofocus System Contrast-detect AF Phase-detect AF
    Manual Focusing AidNo Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/2000/s 1/8000/s
    Continuous Shooting 1 shutter flaps/s 12 shutter flaps/s
    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 Dual card slots
    UHS card support no UHS-I
    Connectivity Specs Epson R-D1 Sony A99 II
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket PC Sync socket
    USB Connector USB no 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
    Bluetooth Support no Bluetooth Bluetooth built-in
    Body Specs Epson R-D1 Sony A99 II
    Environmental SealingNot weather sealedWeathersealed body
    Battery Type EU-85 NP-FM500H
    Body Dimensions 142 x 89 x 40 mm
    (5.6 x 3.5 x 1.6 in)
    143 x 104 x 76 mm
    (5.6 x 4.1 x 3.0 in)
    Camera Weight 620 g (21.9 oz) 849 g (29.9 oz)

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