| Attribute |
Epson R-D1s × | 
Pentax Optio 50L × |
| General | | |
| Model | Epson R-D1s | Pentax Optio 50L |
| Brand | Epson | Pentax |
| Manufacturer url | http://www.epson.com | - |
| Model number | R-D1s | 50L |
| Camera format | Other | Compact |
| Tripod mount | + | + |
| Length (mm) | 142 | 91 |
| Width (mm) | 40 | 33 |
| Height (mm) | 89 | 61 |
| Weight (g) | 560 | 190 |
| Waterproof | - | - |
| Image Sensor | | |
| Sensor type | - | CCD |
| Effective megapixels (MP) | 0 | 5 |
| Sensor format | APS-C | 1/2.5 inch |
| Sensor area (mm²) | 369.72 | 24.71 |
| Sensor width (mm) | 23.7 | 5.76 |
| Sensor height (mm) | 15.6 | 4.29 |
| Approximate pixel pitch (micron) | 7.88 | 2.25 |
| Focal Length Multiplier (x) | 1.5 | - |
| Aspect ratio | 3:2 | 4:3 |
| Color filter type | RGBG | - |
| Self-cleaning | - | - |
| Sensor shift image stabilization | - | - |
| On-sensor phase detect | - | - |
| Image Capture | | |
| Image resolution | - 2240 x 1488(3.3 mp other)
- 3008 x 2000(6.0 mp 3:2)
| - 1280 x 960(1.2 mp 4:3)
- 2048 x 1536(3.1 mp 4:3)
- 2560 x 1920(4.9 mp 4:3)
- 640 x 480(0.3 mp 4:3)
|
| Image file format | - jpeg (exif v2.21)
- raw (.erf)
| |
| Video Capture | | |
| Can take movies | + | + |
| Movie resolution | - | |
| Image Storage | | |
| Movie file format | None | AVI (Motion JPEG) |
| Composite video out | - | + |
| Ntsc/pal switchable video | - | + |
| Lens and Optics | | |
| Lens mount | Leica M bayonet | - |
| Lens | - | Pentax Lens |
| Focal length (35mm equivalent) (mm) | - | 32.00 - 96.00 |
| Focal length (actual) (mm) | - | 2.00 |
| Zoom ratio (x) | - | 3 |
| Aperture range (f) | - | 0.21 - 0.36 |
| Integrated nd filter | - | - |
| Min focus range (cm) | - | 50 |
| Thread type | Varies with lens used | - |
| Optical image stabilization | - | - |
| Digital zoom | - | + |
| Digital zoom values (x) | - | |
| Auto Focus | | |
| Auto focus | - | + |
| Auto focus type | - | TTL Contrast Detection |
| Auto focus assist light | - | - |
| Manual focus | + | - |
| Viewfinder | | |
| Viewfinder | Optical / LCD | LCD |
| Viewfinder type | Rangefinder (1x field of view) | - |
| Focus peaking | - | - |
| Display | | |
| Eye-level viewfinder | + | - |
| Rear display | + | + |
| Rear display size (inch) | 2 | 2.5 |
| Rear display resolution (dots) | 235,000 | 115,000 |
| Touchscreen | - | - |
| Articulating screen | - | - |
| Max playback zoom (x) | 16 | - |
| Exposure | | |
| Iso settings | 200, 400, 800,1600 | Auto, 50, 100, 200 |
| Auto iso mode | - | - |
| White balance settings | - auto / fine / shady / cloudy / incandescent / fluorescent
| - auto
- cloudy
- daylight
- fluorescent
- sunset
- tungsten
|
| Shutter speed range (s) | 1/2000 - 1 | 1/1000 - 2 |
| Bulb mode | - | - |
| Exposure compensation | +/- 2.0EV in 0.3EV steps | +/- 2.0EV in 0.3EV steps |
| Explosure metering modes | Center Weighted | Multi-Segment, Center-weighted |
| Program auto exposure | + | + |
| Aperture priority | + | - |
| Shutter priority | - | - |
| Full manual exposure | + | - |
| Creative exposure modes | None | Landscape, Night Scene, Portrait, Sport, Simple |
| Time lapse (intervalometer) | - | - |
| High resolution composite | - | - |
| Flash | | |
| Built-in flash | - | + |
| Flash modes | - | - auto
- off
- on
- red-eye reduction
|
| Flash range description | - | Wide: 0.5 - 3.4m; Tele: 0.5 - 2.0m |
| External flash connection | Hot shoe, PC sync | - |
| Usable memory types | | |
| Other memory | None | - |
| Dual card slots | - | - |
| Raw capture support | + | - |
| Uncompressed format | | - |
| Included memory (MB) | - | 12 |
| Included memory type | - | built-in memory |
| Connectivity | | |
| Built-in wi-fi | - | - |
| NFC | - | - |
| Bluetooth | - | - |
| Built-in gps | - | - |
| Microphone jack | - | - |
| Headphone jack | - | - |
| External connections | - | |
| Pictbridge compliant | - | + |
| Dpof compliant | + | + |
| Remote control | + | - |
| Remote control type | | - |
| Connections (extended) | | |
| Power | | |
| Battery form factor | Proprietary EPALB1 | 2 x AA |
| Usable battery types | | - lithium disposable or nimh rechargeable
|
| Batteries included | 1 x Proprietary EPALB1 Lithium Ion Rechargeable | Yes |
| Battery charger included (dedicated charger or ac/usb adapter) | + | - |
| Software | | |
| Included software | - epson photolier
- epson raw plugin
| |
| Os compatibility | | - |