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Canon 77D vs Epson R-D1

The Canon EOS 77D and the Epson R-D1 are two digital cameras that were officially introduced, respectively, in February 2017 and March 2004. The 77D is a DSLR, while the R-D1 is a rangefinder-style mirrorless camera. Both cameras are equipped with an APS-C sensor. The Canon has a resolution of 24 megapixels, whereas the Epson provides 6 MP.

Below is an overview of the main specs of the two cameras as a starting point for the comparison.

Headline Specifications
Canon 77D versus Epson R-D1
Canon 77D Epson R-D1
Digital single lens reflex Rangefinder camera
Canon EF mount lenses Leica M mount lenses
24 MP, APS-C Sensor 6 MP, APS-C Sensor
1080/60p Video no Video
ISO 100-25,600 (100 - 51,200) ISO 200-1,600
Optical viewfinder Optical viewfinder
3.0 LCD, 1040k dots 2.0 LCD, 235k dots
Swivel touchscreen Fixed screen (not touch-sensitive)
6 shutter flaps per second 1 shutter flaps per second
131 x 100 x 76 mm, 540 g 142 x 89 x 40 mm, 620 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS 77D and the Epson R-D1? 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 Canon 77D and the Epson R-D1 are illustrated in the side-by-side display below. 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 width, height and depth measures are rounded to the nearest millimeter.

Size Canon 77D vs Epson R-D1
Compare 77D versus R-D1 top
Comparison 77D or R-D1 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Epson R-D1 is somewhat smaller (4 percent) than the Canon 77D. However, the R-D1 is markedly heavier (15 percent) than the 77D. In this context, it is worth noting that neither the 77D nor the R-D1 are weather-sealed.

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. Both cameras have similarly sized sensors, but DSLRs have a larger flange-to-focal plane distance than mirrorless cameras, which imposes contraints on the optical engineering process and generally leads to bigger and heavier lenses. You can compare the optics available for the two cameras in the Canon EF Lens Catalog (77D) and the Leica M Lens Catalog (R-D1).

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, just select a new right or left comparator from among the camera models in the table. Alternatively, you can also 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 1
Weather
Sealing
Camera
Launch 2
Launch
Price (USD)
Street
Price
 
Canon 77D 131 mm 100 mm 76 mm 540 g 600 n Feb 2017 899 i
 
Epson R-D1 142 mm 89 mm 40 mm 620 g .. n Mar 2004 2,999i
 
Canon 850D 131 mm 103 mm 76 mm 515 g 800 n Feb 2020 749 i
 
Canon 2000D 129 mm 101 mm 78 mm 475 g 500 n Feb 2018 449 i
 
Canon 200D 122 mm 93 mm 70 mm 453 g 650 n Jun 2017 549i
 
Canon 800D 131 mm 100 mm 76 mm 532 g 600 n Feb 2017 749i
 
Canon M6 112 mm 68 mm 45 mm 390 g 295 n Feb 2017 779i
 
Canon M100 108 mm 67 mm 35 mm 302 g 295 n Aug 2017 499i
 
Canon 80D 139 mm 105 mm 79 mm 730 g 960 Y Feb 2016 1,199i
 
Canon M5 116 mm 89 mm 61 mm 427 g 295 n Sep 2016 979 i
 
Canon 750D 132 mm 101 mm 78 mm 555 g 440 n Feb 2015 749i
 
Canon 760D 132 mm 101 mm 78 mm 565 g 440 n Feb 2015 649i
 
Canon 300D 142 mm 99 mm 72 mm 649 g 400 n Aug 2003 899i
 
Nikon D50 133 mm 102 mm 76 mm 620 g 400 n Apr 2005 749i
 
Nikon D70s 140 mm 111 mm 78 mm 679 g 500 n Apr 2005 899i
 
Nikon D70 140 mm 111 mm 78 mm 679 g 400 n Jan 2004 999i
 
Olympus E-300 147 mm 85 mm 64 mm 624 g 750 n Sep 2004 799i
Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
(1) Number of images that can be taken on a full battery charge according to the CIPA-standard; (2) Official announcement.

The price is, of course, an important factor in any camera decision. The manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The 77D was launched at a markedly lower price (by 70 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 imaging sensor is a crucial determinant of image quality. A large sensor will tend to have larger individual pixels that provide better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixel-units in a sensor of the same technological generation. Moreover, a large sensor camera will give the photographer more control over depth-of-field in the image and, thus, the ability to better isolate a subject from the background. On the downside, larger sensors are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.

Both cameras under consideration feature an APS-C sensor, but their sensors differ slightly in size. The sensor area in the R-D1 is 11 percent bigger. As a result of these sensor size differences, the cameras have format factors, respectively, of 1.6 (77D) and 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Canon 77D and Epson R-D1 sensor measures

Despite having a smaller sensor, the Canon 77D offers a higher resolution of 24 megapixels, compared with 6 MP of the Epson 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 3.72μm versus 7.85μm for the R-D1). However, it should be noted that the 77D is much more recent (by 12 years and 11 months) than the R-D1, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently.

The resolution advantage of the Canon 77D implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the 77D 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 77D has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Canon EOS 77D has a native sensitivity range from ISO 100 to ISO 25600, which can be extended to ISO 100-51200. The corresponding ISO settings for the Epson R-D1 are ISO 200 to ISO 1600 (no boost).

77D versus R-D1 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 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
 
Canon 77D APS-C 24.0 6000 40001080/60p23.613.397178
 
Epson R-D1 APS-C 6.0 3008 2000none........
 
Canon 850D APS-C 24.0 6000 40004K/24p........
 
Canon 2000D APS-C 24.0 6000 40001080/30p22.611.9100971
 
Canon 200D APS-C 24.0 6000 40001080/60p23.613.4104179
 
Canon 800D APS-C 24.0 6000 40001080/60p........
 
Canon M6 APS-C 24.0 6000 40001080/60p........
 
Canon M100 APS-C 24.0 6000 40001080/60p23.512.9127278
 
Canon 80D APS-C 24.0 6000 40001080/60p23.613.2113579
 
Canon M5 APS-C 24.0 6000 40001080/60p23.412.4126277
 
Canon 750D APS-C 24.0 6000 40001080/30p22.712.091971
 
Canon 760D APS-C 24.0 6000 40001080/30p22.612.091570
 
Canon 300D APS-C 6.3 3072 2048none21.010.854455
 
Nikon D50 APS-C 6.0 3008 2000none20.910.856055
 
Nikon D70s APS-C 6.0 3008 2000none20.410.352950
 
Nikon D70 APS-C 6.0 3008 2000none20.410.352950
 
Olympus E-300 Four Thirds 8.0 3264 2448none........

Many modern cameras cannot only take still pictures, but also record videos. The 77D indeed provides movie recording capabilities, while the R-D1 does not. The highest resolution format that the 77D can use is 1080/60p.

Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. The 77D and the R-D1 are similar in the sense that both have an optical viewfinder. The latter is useful for getting a clear image for framing even in brightly lit environments. The following table reports on some other key feature differences and similarities of the Canon 77D, the Epson R-D1, and comparable cameras.

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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
 
Canon 77Doptical Y 3.0 1040 swivel Y 1/4000s 6.0 Y n
 
Epson R-D1optical n 2.0 235 fixed n 1/2000s 1.0 n n
 
Canon 850Doptical n 3.0 1040 swivel Y 1/4000s 7.5 Y n
 
Canon 2000Doptical n 3.0 920 fixed n 1/4000s 3.0 Y n
 
Canon 200Doptical n 3.0 1040 swivel Y 1/4000s 5.0 Y n
 
Canon 800Doptical n 3.0 1040 swivel Y 1/4000s 6.0 Y n
 
Canon M6optional n 3.0 1040 tilting Y 1/4000s 9.0 Y n
 
Canon M100none n 3.0 1040 tilting Y 1/4000s 6.1 Y n
 
Canon 80Doptical Y 3.0 1040 swivel Y 1/8000s 7.0 Y n
 
Canon M52360 n 3.2 1620 tilting Y 1/4000s 9.0 Y n
 
Canon 750Doptical n 3.0 1040 swivel Y 1/4000s 5.0 Y n
 
Canon 760Doptical Y 3.0 1040 swivel Y 1/4000s 5.0 Y n
 
Canon 300Doptical n 1.8 118 fixed n 1/4000s 2.5 Y n
 
Nikon D50optical n 2.0 130 fixed n 1/4000s 2.5 Y n
 
Nikon D70soptical n 2.0 130 fixed n 1/8000s 3.0 Y n
 
Nikon D70optical n 1.8 130 fixed n 1/8000s 3.0 Y n
 
Olympus E-300optical n 1.8 134 fixed n 1/4000s 2.5 Y n

One difference between the cameras concerns the presence of an on-board flash. The 77D has one, while the R-D1 does not. While the built-in flash of the 77D is not very powerful, it can at times be useful as a fill-in light.

The 77D has an articulated LCD that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in snapping selfies. In contrast, the R-D1 does not have a selfie-screen.

The Canon 77D 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 77D writes its imaging data to SDXC cards, while the R-D1 uses SDHC cards. The 77D 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 Canon EOS 77D and Epson R-D1 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
 
Canon 77DYstereomonoY-mini2.0YYY
 
Epson R-D1Y---------
 
Canon 850DYstereomonoY-mini2.0Y-Y
 
Canon 2000DYmonomono--mini2.0YY-
 
Canon 200DYstereomonoY-mini2.0YYY
 
Canon 800DYstereomonoY-mini2.0YYY
 
Canon M6YstereomonoY-mini2.0YYY
 
Canon M100-stereomono--micro2.0YYY
 
Canon 80DYstereomonoYYmini2.0YY-
 
Canon M5YstereomonoY-mini2.0YYY
 
Canon 750DYstereomonoY-mini2.0YY-
 
Canon 760DYstereomonoY-mini2.0YY-
 
Canon 300DY-----1.1---
 
Nikon D50Y-----2.0---
 
Nikon D70sY-----2.0---
 
Nikon D70Y-----1.0---
 
Olympus E-300Y-----2.0---

It is notable that the 77D offers wifi support, while the R-D1 does not. Wifi can be a very convenient means to transfer image data to an off-camera location.

Studio photographers will appreciate that the Epson R-D1 (unlike the 77D) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

The 77D is a recent model that features in the current product line-up of Canon. 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 Canon and Epson websites.

Review summary

So what is the bottom line? Is the Canon 77D better than the Epson R-D1 or vice versa? The listing below highlights the relative strengths of the two models.

ilogo

Arguments in favor of the Canon EOS 77D:

  • More detail: Offers more megapixels (24 vs 6MP) with a 100% higher linear resolution.
  • Broader imaging potential: Can record not only still images but also 1080/60p movies.
  • Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
  • Easier setting verification: Features an LCD display on top to control 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 (1040k vs 235k dots).
  • More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
  • Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • Faster shutter: Has higher mechanical shutter speed (1/4000s vs 1/2000s) to freeze action.
  • Faster burst: Shoots at higher frequency (6 vs 1 flaps/sec) to capture the decisive moment.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • Less heavy: Is lighter (by 80g or 13 percent) and hence easier to carry around.
  • Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
  • 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.
  • Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
  • More affordable: Was introduced into a lower priced category (70 percent cheaper at launch).
  • More modern: Reflects 12 years and 11 months of technical progress since the R-D1 launch.

ilogo

Reasons to prefer the Epson R-D1:

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

If the count of individual advantages (bullet points above) is taken as a guide, the 77D is the clear winner of the match-up (20 : 2 points). However, the pertinence of the various camera strengths will differ across photographers, so that you might want to weigh individual camera traits according to their importance for your own imaging needs before making a camera decision. A professional 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.

77D 20:02 R-D1

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 77D and the R-D1 in practical situations. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.

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.

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Review Scores
  Camera
Model
camera
  labs  
dp
review  
ephoto
  zine  
imaging
resource
photography
  blog  
Camera
Launch
Launch
Price (USD)
Street
Price
 
Canon 77D..82/1004.5/54.5/54/5 Feb 2017 899 i
 
Epson R-D1.......... Mar 2004 2,999i
 
Canon 850D.......... Feb 2020 749 i
 
Canon 2000Do..3.5/5..3.5/5 Feb 2018 449 i
 
Canon 200D+ +78/1004.5/54.5/54.5/5 Jun 2017 549i
 
Canon 800D..80/1004.5/54/54/5 Feb 2017 749i
 
Canon M6..80/1004/54.5/54/5 Feb 2017 779i
 
Canon M100+..4/5..3.5/5 Aug 2017 499i
 
Canon 80D+ +84/1004.5/54.5/54.5/5 Feb 2016 1,199i
 
Canon M5+82/1004/54.5/54/5 Sep 2016 979 i
 
Canon 750D..75/1004.5/54.5/54.5/5 Feb 2015 749i
 
Canon 760D+77/1004.5/54.5/54.5/5 Feb 2015 649i
 
Canon 300D..+ +..o.. Aug 2003 899i
 
Nikon D5078/100+ +4/5o4.5/5 Apr 2005 749i
 
Nikon D70s......o5/5 Apr 2005 899i
 
Nikon D70..+ +..o.. Jan 2004 999i
 
Olympus E-300..+oo4.5/5 Sep 2004 799i
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.

Canon 77D:
Check Amazon price
Epson R-D1:
Check Ebay offers

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. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Canon 77D vs Epson R-D1

    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 Canon 77D Epson R-D1
    Camera Type Digital single lens reflex Rangefinder camera
    Camera Lens Canon EF mount lenses Leica M mount lenses
    Launch Date February 2017 March 2004
    Launch Price USD 899 USD 2,999
    Sensor Specs Canon 77D Epson R-D1
    Sensor Technology CMOS CCD
    Sensor Format APS-C Sensor APS-C Sensor
    Sensor Size 22.3 x 14.9 mm 23.7 x 15.6 mm
    Sensor Area 332.27 mm2 369.72 mm2
    Sensor Diagonal 26.8 mm 28.4 mm
    Crop Factor 1.6x 1.5x
    Sensor Resolution 24 Megapixels 6 Megapixels
    Image Resolution 6000 x 4000 pixels 3008 x 2000 pixels
    Pixel Pitch 3.72 μm 7.85 μm
    Pixel Density 7.22 MP/cm2 1.63 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability 1080/60p Video no Video
    ISO Setting 100 - 25,600 ISO 200 - 1,600 ISO
    ISO Boost 100 - 51,200 ISO no Enhancement
    DXO Sensor Quality (score) 78 ..
    DXO Color Depth (bits) 23.6 ..
    DXO Dynamic Range (EV) 13.3 ..
    DXO Low Light (ISO) 971 ..
    Screen Specs Canon 77D Epson R-D1
    Viewfinder Type Optical viewfinder Optical viewfinder
    Viewfinder Field of View 95% 100%
    Viewfinder Magnification 0.51x
    Top-Level Screen Control Panel no Top Display
    LCD Framing Live View
    Rear LCD Size 3.0inch 2.0inch
    LCD Resolution 1040k dots 235k dots
    LCD Attachment Swivel screen Fixed screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Canon 77D Epson R-D1
    Focus System Phase-detect AF Manual Focus
    Continuous Shooting 6 shutter flaps/s 1 shutter flaps/s
    Time-Lapse PhotographyIntervalometer built-inno Intervalometer
    Fill Flash Build-in Flash no On-Board Flash
    Storage Medium SDXC cards SDHC cards
    Second Storage Option Single card slot Single card slot
    UHS card support UHS-I no
    Connectivity Specs Canon 77D Epson R-D1
    External Flash Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 no USB
    HDMI Port mini HDMI no HDMI
    Microphone Port External MIC port no MIC socket
    Wifi Support Wifi built-in no Wifi
    Near-Field Communication NFC built-in no NFC
    Bluetooth Support Bluetooth built-in no Bluetooth
    Body Specs Canon 77D Epson R-D1
    Battery Type LP-E17 EU-85
    Body Dimensions 131 x 100 x 76 mm
    (5.2 x 3.9 x 3.0 in)
    142 x 89 x 40 mm
    (5.6 x 3.5 x 1.6 in)
    Camera Weight 540 g (19.0 oz) 620 g (21.9 oz)

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