What is the sensor size of the Epson R-D1?
The Epson R-D1 is a digital camera that has an APS-C sensor at its core. This imager measures 23.7mm in width and 15.6mm in height, so that the total imaging area of the sensor amounts to 370 mm2.
The R-D1 provides an image resolution of 6 megapixels, based on 3 008 horizontal pixels and 2 000 vertical pixels.
Sensor size comparison with a film slide
The sensor diagonal measures 28.4mm, which gives rise to a format factor (or crop factor) of 1.5. Hence, the Epson R-D1 is a crop-sensor camera, as its sensor is smaller than a traditional 35mm film slide or negative.

Sensor specs and performance
The table below compares the sensor specs of the Epson R-D1 to those of several similar cameras. The reported DXO values are indicators of the sensor's imaging quality (higher is better), covering color depth (DXO Portrait), dynamic range (DXO Landscape), and high-ISO noise (DXO Sports). Larger sensor cameras tend to outperform cameras of the same generation that are equipped with a smaller imager. On the other hand, larger sensors are more expensive and require bigger and heavier lenses than smaller light receptors.

| Camera Model |
Sensor Class |
Resolution (MP) |
Horiz. Pixels |
Vert. Pixels |
Video Format |
DXO Portrait |
DXO Landscape |
DXO Sports |
DXO Overall |
||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. | Epson R-D1 | APS-C | 6.0 | 3008 | 2000 | none | 21.1 | 10.4 | 564 | 55 | |
| 2. | Canon 300D | APS-C | 6.3 | 3072 | 2048 | none | 21.0 | 10.8 | 544 | 55 | |
| 3. | Canon 350D | APS-C | 8.0 | 3456 | 2304 | none | 21.8 | 10.8 | 637 | 60 | |
| 4. | Leica M8 | APS-H | 10.4 | 3936 | 2630 | none | 21.1 | 11.3 | 663 | 59 | |
| 5. | Leica M9 | Full Frame | 18.1 | 5212 | 3472 | none | 22.5 | 11.7 | 884 | 69 | |
| 6. | Leica M10 | Full Frame | 23.8 | 5952 | 3992 | none | 24.4 | 13.2 | 2133 | 86 | |
| 7. | Leica X Vario | APS-C | 16.1 | 4928 | 3272 | 1080/30p | 23.4 | 12.7 | 1320 | 78 | |
| 8. | Nikon D50 | APS-C | 6.0 | 3008 | 2000 | none | 20.9 | 10.8 | 560 | 55 | |
| 9. | Nikon D70 | APS-C | 6.0 | 3008 | 2000 | none | 20.4 | 10.3 | 529 | 50 | |
| 10. | Nikon D70s | APS-C | 6.0 | 3008 | 2000 | none | 20.4 | 10.3 | 529 | 50 | |
| 11. | 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. | |||||||||||
In the United States, the R-D1 was initially launched in March 2004 at a price of $2,999.

Check R-D1 offers at
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Camera to camera comparisons
If you would like to see a side-by-side review with another camera, 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.
- Canon SX740 vs Nikon Z6
- Epson R-D1 vs Hasselblad X1D II
- Epson R-D1 vs Nikon P1000
- Epson R-D1 vs Nikon W150
- Epson R-D1 vs Panasonic GH5
- Epson R-D1 vs Panasonic GX85
- Epson R-D1 vs Pentax K-1
- Leica D-LUX 6 vs Nikon Z6
- Nikon Z5 II vs Nikon Z6
- Nikon Z6 vs Olympus E-30
- Nikon Z6 vs Panasonic GF1
- Nikon Z6 vs Sony ZV-1
| Camera Model | Epson R-D1 | |
|---|---|---|
| Camera Type | Rangefinder camera | |
| Camera Lens | Leica M mount lenses | |
| Launch Date | March 2004 | |
| Launch Price | USD 2 999 | |
| Sensor Specs | ||
| Sensor Technology | CCD | |
| Sensor Format | APS-C Sensor | |
| Sensor Size | 23.7 x 15.6 mm | |
| Sensor Area | 370 mm2 | |
| Sensor Diagonal | 28.4 mm | |
| Crop Factor | 1.5x | |
| Sensor Resolution | 6 Megapixels | |
| Image Resolution | 3 008 x 2 000 pixels | |
| Pixel Pitch | 7.85 μm | |
| Pixel Density | 1.63 MP/cm2 | |
| Moiré control | Anti-Alias filter | |
| Movie Capability | no Video | |
| ISO Setting | 200 - 1 600 ISO | |
| Screen Specs | ||
| Viewfinder Type | Optical viewfinder | |
| Viewfinder Field of View | 100% | |
| Top-Level Screen | no Top Display | |
| LCD Size | 2.0 inch | |
| LCD Resolution | 235k dots | |
| LCD Attachment | Fixed screen | |
| Touch Input | No touchscreen | |
| Shooting Specs | ||
| Focus System | Manual Focus | |
| Manual Focusing Aid | no Peaking Feature | |
| Maximum Shutter Speed | 1/2000s | |
| Continuous Shooting | 1 shutter flaps/s | |
| Shutter Life Expectancy | 100 000 actuations | |
| Silent Shooting | no E-Shutter | |
| Time Lapse Photography | no Intervalometer | |
| Fill Flash | no On-Board Flash | |
| Storage Medium | SDHC cards | |
| Single or Dual Card Slots | Single card slot | |
| UHS card support | no | |
| Connectivity Specs | ||
| External Flash | Hotshoe | |
| Studio Flash | PC Sync socket | |
| USB Connector | no USB | |
| HDMI Port | no HDMI | |
| Wifi Support | no Wifi | |
| Body Specs | ||
| Battery Type | Epson EU-85 power pack | |
| Body Dimensions |
142 x 89 x 40 mm (5.6 x 3.5 x 1.6 in) |
|
| Camera Weight | 620 g (21.9 oz) | |
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