Canon 40D vs Epson R-D1
The Canon EOS 40D and the Epson R-D1 are two enthusiast cameras that were revealed to the public, respectively, in August 2007 and March 2004. The 40D is a DSLR, while the R-D1 is a rangefinder-focusing mirrorless camera. Both cameras are equipped with an APS-C sensor. The Canon has a resolution of 10.1 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.
Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS 40D 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.
The side-by-side display below illustrates the physical size and weight of the Canon 40D and the Epson R-D1. 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.
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 notably smaller (20 percent) than the Canon 40D. Moreover, the R-D1 is markedly lighter (25 percent) than the 40D. In this context, it is worth noting that neither the 40D 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 (40D) and the Leica M Lens Catalog (R-D1).
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, you can navigate to the CAM-parator app and make your selection from a broad list of cameras there.
|1.||Canon 40D||146 mm||108 mm||74 mm||822 g||750||n||Aug 2007||1,299||ebay.com|
|2.||Epson R-D1||142 mm||89 mm||40 mm||620 g||..||n||Mar 2004||2,999||ebay.com|
|3.||Canon 70D||139 mm||104 mm||79 mm||755 g||920||Y||Jul 2013||1,199||ebay.com|
|4.||Canon 60D||145 mm||106 mm||79 mm||755 g||1100||Y||Aug 2010||1,399||ebay.com|
|5.||Canon 50D||146 mm||108 mm||74 mm||822 g||800||Y||Aug 2008||1,299||ebay.com|
|6.||Canon 450D||129 mm||98 mm||62 mm||524 g||500||n||Jan 2008||799||ebay.com|
|7.||Canon 1000D||126 mm||98 mm||65 mm||502 g||500||n||Jun 2008||449||ebay.com|
|8.||Canon 30D||144 mm||106 mm||74 mm||785 g||750||n||Feb 2006||1,399||ebay.com|
|9.||Canon 400D||127 mm||84 mm||65 mm||556 g||370||n||Aug 2006||799||ebay.com|
|10.||Canon 20D||144 mm||106 mm||72 mm||770 g||700||n||Aug 2004||1,499||ebay.com|
|11.||Canon 300D||142 mm||99 mm||72 mm||649 g||400||n||Aug 2003||899||ebay.com|
|12.||Nikon D90||132 mm||103 mm||77 mm||703 g||850||n||Aug 2008||1,299||ebay.com|
|13.||Nikon D50||133 mm||102 mm||76 mm||620 g||400||n||Apr 2005||749||ebay.com|
|14.||Nikon D70s||140 mm||111 mm||78 mm||679 g||500||n||Apr 2005||899||ebay.com|
|15.||Nikon D70||140 mm||111 mm||78 mm||679 g||400||n||Jan 2004||999||ebay.com|
|16.||Olympus E-30||142 mm||108 mm||75 mm||701 g||750||n||Nov 2008||1,299||ebay.com|
|17.||Olympus E-300||147 mm||85 mm||64 mm||624 g||750||n||Sep 2004||799||ebay.com|
|Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.|
Any camera decision will naturally be influenced heavily by the price. 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 40D was launched at a markedly lower price (by 57 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.
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. 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 (40D) and 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
Despite having a smaller sensor, the Canon 40D offers a higher resolution of 10.1 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 5.73μm versus 7.85μm for the R-D1). However, it should be noted that the 40D is much more recent (by 3 years and 5 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 40D implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the 40D for good quality output (200 dots per inch) amounts to 19.4 x 13 inches or 49.4 x 32.9 cm, for very good quality (250 dpi) 15.6 x 10.4 inches or 39.5 x 26.3 cm, and for excellent quality (300 dpi) 13 x 8.6 inches or 32.9 x 21.9 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 Canon EOS 40D has a native sensitivity range from ISO 100 to ISO 1600, which can be extended to ISO 100-3200. The corresponding ISO settings for the Epson R-D1 are ISO 200 to ISO 1600 (no boost).
In terms of underlying technology, the 40D is build around a CMOS sensor, while the R-D1 uses a CCD imager. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.
For many cameras, data on sensor performance has been reported by DXO Mark. 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 table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
|16.||Olympus E-30||Four Thirds||12.2||4032||3024||none||21.3||10.4||530||55|
|17.||Olympus E-300||Four Thirds||8.0||3264||2448||none||20.4||10.1||-40||48|
|Note: DXO values in italics represent estimates based on sensor size and age.|
Apart from body and sensor, cameras can and do differ across a variety of features. The 40D 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 adjacent table lists some of the other core features of the Canon 40D and Epson R-D1 along with similar information for a selection of comparators.
|1.||Canon 40D||optical||Y||3.0 / 230||fixed||n||1/8000s||6.5/s||Y||n|
|2.||Epson R-D1||optical||n||2.0 / 235||fixed||n||1/2000s||1.0/s||n||n|
|3.||Canon 70D||optical||Y||3.0 / 1040||swivel||Y||1/8000s||7.0/s||Y||n|
|4.||Canon 60D||optical||Y||3.0 / 1040||swivel||n||1/8000s||5.3/s||Y||n|
|5.||Canon 50D||optical||Y||3.0 / 920||fixed||n||1/8000s||6.3/s||Y||n|
|6.||Canon 450D||optical||n||3.0 / 230||fixed||n||1/4000s||3.5/s||Y||n|
|7.||Canon 1000D||optical||n||2.5 / 230||fixed||n||1/4000s||3.0/s||Y||n|
|8.||Canon 30D||optical||Y||2.5 / 230||fixed||n||1/8000s||5.0/s||Y||n|
|9.||Canon 400D||optical||n||2.5 / 230||fixed||n||1/4000s||3.0/s||Y||n|
|10.||Canon 20D||optical||Y||1.8 / 118||fixed||n||1/8000s||5.0/s||Y||n|
|11.||Canon 300D||optical||n||1.8 / 118||fixed||n||1/4000s||2.5/s||Y||n|
|12.||Nikon D90||optical||Y||3.0 / 920||fixed||n||1/4000s||4.5/s||Y||n|
|13.||Nikon D50||optical||n||2.0 / 130||fixed||n||1/4000s||2.5/s||Y||n|
|14.||Nikon D70s||optical||n||2.0 / 130||fixed||n||1/8000s||3.0/s||Y||n|
|15.||Nikon D70||optical||n||1.8 / 130||fixed||n||1/8000s||3.0/s||Y||n|
|16.||Olympus E-30||optical||Y||2.7 / 230||swivel||n||1/8000s||5.0/s||Y||Y|
|17.||Olympus E-300||optical||n||1.8 / 134||fixed||n||1/4000s||2.5/s||Y||n|
|Notes: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.|
One difference between the cameras concerns the presence of an on-board flash. The 40D has one, while the R-D1 does not. While the built-in flash of the 40D is not very powerful, it can at times be useful as a fill-in light.
The 40D writes its imaging data to Compact Flash cards, while the R-D1 uses SDHC cards.
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 40D and Epson R-D1 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Mic / Speaker
|1.||Canon 40D||Y||- / -||-||-||-||2.0||-||-||-|
|2.||Epson R-D1||Y||- / -||-||-||-||-||-||-||-|
|3.||Canon 70D||Y||stereo / mono||Y||-||mini||2.0||Y||-||-|
|4.||Canon 60D||Y||mono / mono||Y||-||mini||2.0||-||-||-|
|5.||Canon 50D||Y||- / -||-||-||mini||2.0||-||-||-|
|6.||Canon 450D||Y||- / -||-||-||mini||2.0||-||-||-|
|7.||Canon 1000D||Y||- / -||-||-||-||2.0||-||-||-|
|8.||Canon 30D||Y||- / -||-||-||-||2.0||-||-||-|
|9.||Canon 400D||Y||- / -||-||-||-||2.0||-||-||-|
|10.||Canon 20D||Y||- / -||-||-||-||1.1||-||-||-|
|11.||Canon 300D||Y||- / -||-||-||-||1.1||-||-||-|
|12.||Nikon D90||Y||mono / mono||-||-||mini||2.0||-||-||-|
|13.||Nikon D50||Y||- / -||-||-||-||2.0||-||-||-|
|14.||Nikon D70s||Y||- / -||-||-||-||2.0||-||-||-|
|15.||Nikon D70||Y||- / -||-||-||-||1.0||-||-||-|
|16.||Olympus E-30||Y||- / -||-||-||-||2.0||-||-||-|
|17.||Olympus E-300||Y||- / -||-||-||-||2.0||-||-||-|
Both cameras feature a PC Sync terminal to control professional strobe lights, which will be appreciated by studio photographers.
Both the 40D and the R-D1 have been discontinued, but can regularly be found used on ebay. The 40D was replaced by the Canon 50D, while the R-D1 does not have a direct successor. Further information on the features and operation of the 40D and R-D1 can be found, respectively, in the Canon 40D Manual (free pdf) or the online Epson R-D1 Manual.
So what is the bottom line? Which of the two cameras – the Canon 40D or the Epson R-D1 – has the upper hand? Is one clearly better than the other? A synthesis of the relative strong points of each of the models is listed below.
Arguments in favor of the Canon EOS 40D:
- More detail: Offers more megapixels (10.1 vs 6MP) with a 29% higher linear resolution.
- 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.
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/2000s) to freeze action.
- Faster burst: Shoots at higher frequency (6.5 vs 1 flaps/sec) to capture the decisive moment.
- Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
- More affordable: Was introduced into a lower priced category (57 percent cheaper at launch).
- More modern: Reflects 3 years and 5 months of technical progress since the R-D1 launch.
Advantages of the Epson R-D1:
- More compact: Is smaller (142x89mm vs 146x108mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 202g or 25 percent) and is thus easier to take along.
- More heavily discounted: Has been around for much longer (launched in March 2004).
If the count of relative strengths (bullet points above) is taken as a measure, the 40D is the clear winner of the match-up (8 : 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.
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 40D or the R-D1 perform in practice. 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.
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], digitalcameraworld [DCW], dpreview [DPR], ephotozine [EPZ], photographyblog [PB]). As can be seen, the professional reviewers agree in many cases on the quality of different cameras, but sometimes their assessments diverge, reinforcing the earlier point that a camera decision is often a very personal choice.
|1.||Canon 40D||..||+ +||..||+ +||4.5/5||4.5/5||Aug 2007||1,299||ebay.com|
|2.||Epson R-D1||..||..||..||..||..||..||Mar 2004||2,999||ebay.com|
|3.||Canon 70D||5/5||+ +||..||83/100||4.5/5||5/5||Jul 2013||1,199||ebay.com|
|4.||Canon 60D||5/5||+||..||79/100||4/5||4.5/5||Aug 2010||1,399||ebay.com|
|5.||Canon 50D||..||+ +||..||+ +||4.5/5||4.5/5||Aug 2008||1,299||ebay.com|
|6.||Canon 450D||..||+ +||..||+ +||4/5||4.5/5||Jan 2008||799||ebay.com|
|7.||Canon 1000D||..||82/100||..||+ +||3.5/5||4.5/5||Jun 2008||449||ebay.com|
|8.||Canon 30D||..||+ +||..||+ +||o||..||Feb 2006||1,399||ebay.com|
|9.||Canon 400D||..||+ +||..||+ +||o||4/5||Aug 2006||799||ebay.com|
|10.||Canon 20D||..||..||..||+ +||..||..||Aug 2004||1,499||ebay.com|
|11.||Canon 300D||..||..||..||+ +||..||..||Aug 2003||899||ebay.com|
|12.||Nikon D90||..||+ +||..||+ +||4/5||4.5/5||Aug 2008||1,299||ebay.com|
|13.||Nikon D50||..||78/100||..||+ +||4/5||4.5/5||Apr 2005||749||ebay.com|
|14.||Nikon D70s||..||..||..||..||..||5/5||Apr 2005||899||ebay.com|
|15.||Nikon D70||..||..||..||+ +||..||..||Jan 2004||999||ebay.com|
|16.||Olympus E-30||..||..||..||71/100||4.5/5||4/5||Nov 2008||1,299||ebay.com|
|17.||Olympus E-300||..||..||..||+||o||4.5/5||Sep 2004||799||ebay.com|
|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. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and comparisons of ratings among very different cameras or across long time periods have little meaning. Also, please note that some of the review sites have changed their methodology and reporting over time.
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.
- Canon 40D vs Canon 5DS
- Canon 40D vs Canon XTi
- Canon 40D vs Fujifilm X-M1
- Canon 40D vs Olympus E-P3
- Canon 40D vs Panasonic G7
- Canon 40D vs Panasonic S5
- Epson R-D1 vs Hasselblad X1D
- Epson R-D1 vs Leica CL
- Epson R-D1 vs Olympus E-M10
- Epson R-D1 vs Olympus PEN-F
- Epson R-D1 vs Panasonic ZS80
- Epson R-D1 vs Sony RX100 V
Specifications: Canon 40D 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 Model||Canon 40D||Epson R-D1|
|Camera Type||Digital single lens reflex||Rangefinder camera|
|Camera Lens||Canon EF mount lenses||Leica M mount lenses|
|Launch Date||August 2007||March 2004|
|Launch Price||USD 1,299||USD 2,999|
|Sensor Specs||Canon 40D||Epson R-D1|
|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|
|Sensor Resolution||10.1 Megapixels||6 Megapixels|
|Image Resolution||3888 x 2592 pixels||3008 x 2000 pixels|
|Pixel Pitch||5.73 μm||7.85 μm|
|Pixel Density||3.03 MP/cm2||1.63 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||no Video||no Video|
|ISO Setting||100 - 1,600 ISO||200 - 1,600 ISO|
|ISO Boost||100 - 3,200 ISO||no Enhancement|
|DXO Sensor Quality (score)||64||..|
|DXO Color Depth (bits)||22.1||..|
|DXO Dynamic Range (EV)||11.3||..|
|DXO Low Light (ISO)||703||..|
|Screen Specs||Canon 40D||Epson R-D1|
|Viewfinder Type||Optical viewfinder||Optical viewfinder|
|Viewfinder Field of View||95%||100%|
|Top-Level Screen||Control Panel||no Top Display|
|LCD Framing||Live View|
|Rear LCD Size||3.0inch||2.0inch|
|LCD Resolution||230k dots||235k dots|
|LCD Attachment||Fixed screen||Fixed screen|
|Shooting Specs||Canon 40D||Epson R-D1|
|Focus System||Phase-detect AF||Manual Focus|
|Continuous Shooting||6.5 shutter flaps/s||1 shutter flaps/s|
|Fill Flash||Built-in Flash||no On-Board Flash|
|Storage Medium||CF cards||SDHC cards|
|Single or Dual Card Slots||Single card slot||Single card slot|
|Connectivity Specs||Canon 40D||Epson R-D1|
|Studio Flash||PC Sync socket||PC Sync socket|
|USB Connector||USB 2.0||no USB|
|HDMI Port||no HDMI||no HDMI|
|Wifi Support||no Wifi||no Wifi|
|Body Specs||Canon 40D||Epson R-D1|
146 x 108 x 74 mm
(5.7 x 4.3 x 2.9 in)
142 x 89 x 40 mm
(5.6 x 3.5 x 1.6 in)
|Camera Weight||822 g (29.0 oz)||620 g (21.9 oz)|
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