| key specs |
| Camera Type | DSLR Camera | DSLR Camera |
| Effective Pixels | 20.1 MP | 22.3 MP |
| Sensor Type | CMOS | CMOS |
| Display Type | TFT LCD | - |
| Display Size | 3 inch | 3.2 inch |
| Battery Type | Lithium ion | Lithium ion |
| Touchscreen | - | No |
| general |
| Brand | Ricoh | Canon |
| Model | Pentax K-S1 20.1MP DSLR Camera | EOS 5D Mark III 22.3MP DSLR Camera |
| Model Name | Pentax K-S1 | EOS 5D Mark III |
| Series | Pentax | - |
| Color | Black | Black |
| Type | DSLR Camera | DSLR Camera |
| Effective Pixels | 20.1 MP | 22.3 MP |
| Dimensions(WxHxD) | 121 x 93 x 70 mm | 116.4 x 152 x 76.4 mm |
| Weight | 558 GM | 950 GM |
| Temperature | 0 to 40 | 0 to 40 |
| Model Number | - | EOS 5D Mark III |
| SLR Variant | - | Body Only |
| Tripod Socket | - | Yes |
| Face Detection | - | Yes |
| Ports | - | Mini HDMI |
| sensor features |
| Sensor Type | CMOS | CMOS |
| Sensor Size | 23.5 x 15.6 mm | 22.3 x 14.9 mm |
| ISO Rating | - | ISO 100 - 12800 |
| Maximum ISO | - | 12800 ISO |
| lens features |
| Lens Type | Pentax KAF2 | - |
| Focal Length | 18 - 55 mm / 50 - 200 mm | - |
| Aperture Range | F3.5 (W) - F5.6 (T) / F4.0 (W) - F5.6 (T) | - |
| Manual Focus | Yes | Yes |
| Color Filter | Primary RGB Color Filter | Primary RGB Color Filter |
| Lens Mount | - | Canon EF Mount |
| Dust Reduction | - | Yes |
| Other Lens Features | - | Canon EF Compatible Lenses, Depth-of-field Preview |
| viewfinder features |
| Viewfinder Coverage | 100% | - |
| Viewfinder Magnification | 0.95x | - |
| Viewpoint Dioptric Adjustment | -2.5m to +1.5m | - |
| Viewfinder Eye Point | 20.5 mm | - |
| Other Viewfinder Features | Standard focusing screen (Natural-Bright-Matte III)Depth Of Field Preview (Optical (diaphragm stop-down), digital) | - |
| View Finder | - | Yes |
| View Finder Type | - | Eye-level Pentaprism |
| focus features |
| Auto Focus | Yes | Yes |
| Metering Modes | Multi, Center-Weighted, Spot | Evaluative Metering with the Image Sensor |
| White Balancing | Daylight White, W Cool White, L Warm White), Tungsten Light, Flash, CTE, Manual WB, Color | Auto, Preset Daylight, Shade, Cloudy, Tungsten Light, White Fluorescent Light, Flash, Custom, Color Temperature Setting, White Balance Correction, and White Balance Bracketing, Flash Color Temperature Information Transmission Enabled |
| Other Focus Features | Interchangeable Lens Features [Min. Aperture (F22.0 - F32.0), Number of diaphragm blades (6), Lens Optics (11 Elements & 10 Groups), Min. Focus (1.1 m), Maximum magnification (0.24x), Full Time Manual Focus, Filter Thread (49 mm), Rotary Zoom Method | Manual focusing 5x, 10x Magnification, Closest Focusing Distance 0.45m, Zoom Magnification 1.5x - 10x |
| shutter features |
| Shutter Speed | 1/6000 sec (Max) & 30 sec (Min) | 1/8000 sec |
| Self-timer | Yes | Yes |
| Continuous Shots | Hi 5.4 fps, Lo 3.0 fps | Yes, 6 fps High Speed, 3 fps Low Speed, 3 fps Silent Mode |
| flash features |
| Built-in Flash | Yes | - |
| External Flash | Yes | Yes |
| Flash Modes | Auto, auto + redeye, on, on + redeye reduction, slow sync, trailing curtain sync, manual | E-TTL II Auto Flash, Metered Manual |
| Other Flash Features | - | Compatible Speedlites EX-series Speedlites, External Speedlite Control, PC Terminal, |
| image features |
| Image Format | JPEG, RAW, RAW + JPEG | JPEG, RAW, RAW JPEG, DCF |
| Maximum Resolution | 5472 x 3648 | - |
| Image Stabilizer | Yes | - |
| Picture Angle | 28 mm Ultra Wide-angle | - |
| display features |
| Display Type | TFT LCD | - |
| Display Size | 3 inch | 3.2 inch |
| Display Resolution | 921K dots | - |
| LCD Display | Fixed Articulated LCD | - |
| Touch Screen | - | No |
| Other Display Features | - | Movie Playback, Image Rotate Playback, Slide Show, Image Protect, Copying Images, Maximum Magnification 0.23x |
| connectivity features |
| HDMI | Yes | - |
| USB | Yes | - |
| Wifi | - | No |
| storage and power features |
| Upgradable Memory | Yes | - |
| Card Type | SD, SDHC, SDXC (UHS-1 compliant), Eye-Fi Card, FLU Card | - |
| Power Supply | AC adapter K-AC128 | - |
| Battery Type | Lithium ion | Lithium ion |
| Battery Life | 480 | - |
| audio and video features |
| Microphone | Built-in stereo microphone | - |
| Speaker | Mono Speaker | - |
| Audio Features | Adjustable recording sound level | - |
| Video Format | H.264 | MOV, MPEG-4 AVC / H.264 |
| Video Resolution | - | 1920 x 1080 |
| modes and functions features |
| Shooting Modes | EFFECT Mode (Faded Color, Clear Tone, Brilliant Color, Unicolor Bold, Vintage Color, Cross Processing, Warm Fade, Tone Expansion, Bold Monochrome, Infrared Filter, Vibrant Color Enhance), Custom Image modes (Bright, Natural, Portrait, Landscape, Vibrant, Radiant, Muted, Bleach Bypass, Reversal Film, Monochrome, Cross Processing | Auto, Program AE, Shutter Priority AE, Aperture Priority AE, Manual, Custom x3, HDR Shooting, Live Mode, Face Detection Live Mode Contrast Detection, Quick Mode Phase-difference Detection, Shooting Modes Ratio 32, 43, 169, 11 |
| exposure features |
| Exposure Compensation | - | 3 EV in Increments of 1/3 EV or 1/2 EV |
| Manual Exposure | - | Yes |
| Other Exposure Features | - | Exposure Control Autoexposure, Shutter-priority AE, Aperture-priority AE |